Publications

Manuscripts submitted for publication

A Quasar-Galaxy Mixing Diagram: Quasar spectral energy distribution shape in the Optical to Near-Infrared

Hao H., Elvis M., Kelly B.C., Civano F., Bongiorno A., Zamorani G., Celotti A.,

Ho L.C., Merloni A., Jahnke K.,Comastri A., Trump J.R., Mainieri V.,  Salvato M., Brusa M., Impey C.D., Koekemoer A.M., Lanzuisi G., Vignali C., Silverman J.D., Urry C.M., Schawinski K.

2012, MNRAS, submitted


Spectral Energy Distributions of Type 1 AGN in XMM-COSMOS Survey II - Shape evolution

Hao H., Elvis M., Civano F., Zamorani G., Ho L.C., Comastri A., Bongiorno A., Merloni A., Brusa M., Trump J.R., Salvato M., Impey C.D., Koekemoer A.M., Lanzuisi G., Celotti A., Jahnke K., Vignali C., Silverman J.D., Urry C.M., Schawinski K., Capak P.

2012, MNRAS, submitted


Afterglow emission in Gamma-Ray Bursts: I. Pair-enriched ambient medium and radiative blast waves

Nava L., Sironi L., Ghisellini G., Celotti A., Ghirlanda G.

2012, MNRAS, submitted


Exploring the spectroscopic properties of relic radio galaxies

Capetti A., Robinson A., Baldi R., Buttiglione S., Axon D.J., Celotti A., Chiaberge M.

2012, A&A, submitted

 

Radio-to-gamma-ray monitoring of the Narrow Line Seyfert 1 Galaxy PMN J0948+0022 from 2008 to 2011

Foschini L., Angelakis E., Fuhrmann L., Ghisellini G., Hovatta T., Lahteenmaki A., Lister M.L., Braito V., Gallo L., Hamilton T.S., Kino M., Komossa S., Pushkarev A.B., Thompson D.J., Tibolla O., Tramacere A., Carraminana A., Carrasco L., Falcone A., Giroletti M., Grupe D., Kovalev Y.Y., Krichbaum T.P., Max-Moerbeck W., Nestoras I., Pearson T.J., Porras A., Readhead A.C.S., Recillas E., Richards J.L., Riquelme D., Sievers A., Tammi J., Tornikoski M., Ungerechts H., Zensus J.A., Celotti A., Bonnoli G., Doi A., Maraschi L., Tagliaferri G., Tavecchio F.

2012, A&A, in press


Broad-band Jet emission in young and powerful radio sources: the case of the CSS Quasar 3C 186

Migliori G., Siemiginowska A., Celotti A.

2012, ApJ, 749, 107


Suzaku X-ray imaging of the extended lobe in the Giant Radio Galaxy NGC6251 associated with the Fermi-LAT source 2FGLJ1629.4+8236

Takeuchi Y., Kataoka J., Stawarz L., Takahashi Y., Maeda K., Nakamori T., Cheung C.C., Celotti A., Tanaka Y., Takahashi T.

2012, ApJ, 749, 66


Gamma-Ray Bursts in the comoving frame

Ghirlanda G., Nava L., Ghisellini G., Celotti A., Burlon D., Covino S.,

Melandri A.

2012, MNRAS, 420, 483


Broad-line Radio Galaxies Observed with Fermi-LAT: The Origin of the GeV γ-Ray Emission

Kataoka J., Stawarz L., Takahashi Y., Cheung C.C., Hayashida M., Grandi P., Burnett T.H., Celotti A., Fegan S.J., Fortin P., Maeda K., Nakamori T., Taylor G.B., Tosti G., McConville W., D’Ammando F.

2011, ApJ, 740, 29


Implications for the structure of the relativistic jet from the multiwavelength observations of NGC 6251

Migliori G., Grandi P, Torresi E., Dermer C., Finke J., Celotti A., Mukherjee R., Errando M., Gargano F., Giordano F., Giroletti M.
2011, A&A, 533, 72


Fermi/GBM and Batse Gamma-Ray Bursts: comparison of the spectral  properties
Nava L., Ghirlanda G., Ghisellini G., Celotti A.            
2011, MNRAS, 415, 3153


Spectral properties of 438 GRBs detected by Fermi/GBM
Nava L., Ghirlanda G., Ghisellini G., Celotti A.            
2011, A&A, 530, 21


An optical spectroscopic survey of the 3CR sample of radio galaxies with z <0.3. IV. Discovery of the new spectroscopic class of relic radio galaxies
Capetti A., Buttiglione S., Axon D., Robinson A., Celotti A., Baldi R., Chiaberge M., Macchetto F., Sparks W.            
2011, A&A, 527, 2 
arXiv:1101.1787


An optical spectroscopic survey of the 3CR sample of radio galaxies with z<0.3. III. Completing the sample                                                      Buttiglione S., Capetti A., Celotti A.,  Axon D., Chiaberge M., Macchetto F., Sparks W.                                                                                                  2011, A&A, 525, 28

Fermi Large Area Telescope Observations of misaligned AGN
Abdo A.A., Ackermann M., Ajello M., et al. - Fermi-LAT Collaboration                                                                                       
2010, ApJ, 720, 912


The First Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope
Abdo A.A., Ackermann M., Ajello M.,  et al. - Fermi-LAT Collaboration            
2010, ApJ,  715,  429


γ -ray Spectral Evolution of NGC 1275 Observed with Fermi LAT
Kataoka J., Stawarz L., Cheung, C.C., Tosti G., Cavazzuti E., Celotti A., Nishino S., Fukazawa  Y., Thompson D.J., McConville W.F.            
2010, ApJ, 715, 554


GeV emission from Gamma Ray Bursts: a radiative fireball?
Ghisellini G., Ghirlanda G., Nava L., Celotti A.            
2010, MNRAS, 403, 926 arXiv:0910.2459


Testing a new view of Gamma Ray Burst Afterglows
Nardini M., Ghisellini G., Ghirlanda G., Celotti A.
2010, MNRAS, 403, 1131 arXiv:0907.4157


An optical spectroscopic survey of the 3CR sample. II. Spectroscopic classes and accretion modes in radio-loud AGN
Buttiglione S., Capetti A., Celotti A., D. Axon, M. Chiaberge, F. Macchetto, W. Sparks
2010, A&A, 509, 6 arXiv:0911.0536


General physical properties of bright Fermi blazars
Ghisellini G., Tavecchio F., Foschini L., Ghirlanda G., Maraschi L., Celotti A.
2010, MNRAS, 402, 497 arXiv:0909.0932


Multiwavelength monitoring of the enigmatic Narrow-Line Seyfert 1 PMN J0948+0022 in March-July 2009
Abdo A.A., Ackermann M., Ajello M., et al. - Fermi-LAT Collaboration
2009, ApJ, 707, 727


Time resolved spectral behaviour of bright BATSE precursors
Burlon D., Ghirlanda G., Ghisellini G., Greiner J., Celotti A.
2009, A&A, 505, 569 arXiv:0907.5203


Probing variability patterns of the Fe K line complex in bright nearby AGNs
De Marco B., Iwasawa K., Cappi M., Dadina M., Miniutti G. Celotti A.,Tombesi F.
2009, A&A, 507, 159 arXiv:0907.1527


Fermi Discovery of Gamma-ray Emission from NGC 1275
Abdo A.A., et al. (The Fermi Collaboration)
2009, ApJ, 699, 31


Short versus long gamma-ray bursts: spectra, energetics, and luminosities
Ghirlanda G., Nava L., Ghisellini G., Celotti A., Firmani C.
2009, A&A, 496, 585 arXiv:0902.0983


An optical spectroscopic survey of the 3CR sample of radio galaxies with z<0.3. I. Presentation of the data
Buttiglione S., Capetti A., Celotti A., Axon D.J., Chiaberge M., Macchetto F., Sparks W.B.
2009, A&A, 495, 1033 arXiv:0901.1764


Fermi Observations of High-Energy Gamma-Ray Emission from GRB 080916C
Abdo A.A., Ackermanm M., Arimoto M., et al. (Fermi GRB and LAT
Collaborations)
2009, Science, 323, 1688


A unifying view of Gamma-Ray Burst afterglows
Ghisellini G., Nardini M., Ghirlanda G., Celotti A.
2009, MNRAS, 393, 253 arXiv:0811.1038


TeV variability in blazars: how fast can it be?
Ghisellini G., Tavecchio F., Bodo G., Celotti A.
2009, MNRAS, 393, L16 arXiv:0810.5555


Gamma-ray polarization constraints on Planck scale violations of special relativity
Maccione L., Liberati S., Celotti A., Kirk J.G., Ubertini P.
2008, PRD, 78, 103003 PRD/v78/e103003


Precursors in Swift Gamma Ray Bursts with redshift
Burlon D., Ghirlanda G., Ghisellini G., Lazzati D., Nava L., Nardini M., Celotti A.
2008, ApJ, 685, L19 arXiv:0806.3076


Life after Death [Perspective]
Celotti A.
2008, Science, 321, 1164 full article


The power of blazar jets
Celotti A., Ghisellini G.
2008, MNRAS, 385, 283 arXiv:0711.4112


Rates of long Gamma-Ray Burst progenitors at high redshifts
Lapi A., Kawakatu N., Bosnjak Z., Celotti A., Bressan A., Granato G., Danese L.
2008, MNRAS, 386, 608 arXiv:0802.0787


Energetics - Spectral correlations vs the BATSE Gamma-Ray Bursts population
Bosnjak Z., Celotti A., Longo F., Barbiellini G.
2008, MNRAS, 384, 599 astro-ph/0502185


New constraints on Planck-scale Lorentz Violation in QED from the Crab Nebula
Maccione L., Liberati S., Celotti A., Kirk J.G.
2007, JCAP, 10, 13 arXiv:0707.2673


Re-born fireballs in Gamma-Ray Bursts
Ghisellini G., Celotti A., Ghirlanda G., Firmani C., Nava L.
2007, MNRAS, 382, L72 arXiv:0709.1945


On the nature of optical nuclei in FR I radio-galaxies from ACS/HST imaging polarimetry
Capetti A., Axon D.J., Chiaberge M., Sparks W.B., Macchetto D.F., Cracraft M., Celotti A.
2007, A&A, 471, 137 arXiv:0706.1944


Bulk Comptonization spectra in blazars
Celotti A., Ghisellini G., Fabian A.C.
2007, MNRAS, 375, 417 astro-ph/0611439


Using Radio Bubbles to Constrain the Matter Content of AGN Jets
Dunn R.J.H., Fabian A.C., Celotti A.
2006, MNRAS, 372, 1741 astro-ph/0608466


Radiative pressure feedback by a quasar in a galactic bulge
Fabian A.C., Celotti A., Erlund M.C.
2006, MNRAS, 373, L16 astro-ph/0608425


Multiwavelength observations of the BL Lacertae Object PKS 2155-304 with XMM-Newton
Zhang Y.-H., Bai J.M., Zhang S.N., Treves A., Maraschi L., Celotti A.
2006, ApJ, 651, 782 astro-ph/0607138


On the radio properties of the highest redshift quasars
Cirasuolo M., Magliocchetti M., Gentile G., Celotti A., Cristiani S., Danese L.
2006, MNRAS, 371, 29 astro-ph/0606297


Extended inverse-Compton emission from distant, powerful radio galaxies
Erlund M.C., Fabian A.C., Blundell K.M., Celotti A., Crawford C.S.
2006, MNRAS, 371, 695 astro-ph/0606238


GRB 990413: Insight into the thermal phase evolution
Bosnjak Z., Celotti A., Ghirlanda G.
2006, MNRAS, 370, L33 astro-ph/0604425


Discovery of the low-energy cutoff in a powerful radio galaxy
Blundell K.M., Fabian A.C., Crawford C.S., Erlund M.C., Celotti A.
2006, ApJ, 644, L13 astro-ph/0605391


Gamma-Ray Bursts associated with Supernovae: A systematic analysis of BATSE GRB candidates
Bosnjak Z., Celotti A., Ghirlanda G., Della Valle M., Pian E.
2006, A&A, 447, 121 astro-ph/0510058


XMM-Newton View of PKS 2155-304: Characterizing the X-Ray Variability Properties with EPIC-PN
Zhang Y. H., Treves A., Celotti A., Qin Y. P., Bai J. M.
2005, ApJ, 629, 686 astro-ph/0505160


The peak luminosity - peak energy correlation in GRBs
Ghirlanda G., Ghisellini G., Firmani C., Celotti A., Bosnjak Z.
2005, MNRAS, 360, L45 astro-ph/0502488


XMM observations of the high-redshift quasar RX J1028.6-0844: soft X-ray spectral flattening
Yuan W., Fabian A.C., Celotti A., McMahon R., Matsuoka M.
2005, MNRAS, 358, 432


Probing the nuclear obscuration in radio-galaxies with near infrared imaging
Marchesini D., Capetti A., Celotti A.
2005, A&A, 433, 841 astro-ph/0412388


Faint radio-loud quasars: clues on their evolution
Cirasuolo M., Magliocchetti M., Celotti A.
2005, MNRAS, 357, 1267 astro-ph/0412131


High frequency peakers: young radio sources or flaring blazars?
Tinti S., Dallacasa D., De Zotti G., Celotti A., Stanghellini C.
2005, A&A, 432, 31 astro-ph/0410663


The spectra of short Gamma-Ray Bursts
Ghirlanda G., Ghisellini G., Celotti A.
2004, A&A, 422, L55 astro-ph/0310861


Disk outflows and the accretion rate gap
Begelman M.C., Celotti A.
2004, MNRAS, 352, L45 astro-ph/0406607


Extended X-ray emission at high redshifts: radio galaxies versus clusters
Celotti A., Fabian A.C.
2004, MNRAS, 353, 523 astro-ph/0405622


XMM-Newton observations of GB B1428+4217: confirmation of intrinsic soft X-ray absorption
Worsley M.A., Fabian A.C., Celotti A., Iwasawa K.
2004, MNRAS, 350, L67 astro-ph/0403601


Internal shocks and the blazar sequence. Low and intermediate power BL Lac objects
Guetta D., Ghisellini G., Lazzati D., Celotti A.
2004, A&A, 421, 877 astro-ph/0402164


A transition in the accretion properties of radio-loud active nuclei
Marchesini D., Celotti A., Ferrarese L.
2004, MNRAS, 351, 733 astro-ph/0403272


Compton tails in long duration Gamma-Ray Bursts
Barbiellini G., Celotti A., Ghirlanda G., Longo F., Piro L., Tavani M.
2004, MNRAS, 350, L5


XMM-Newton confirmation of a warm absorber in the z=4.4 blazar PMN J0525-3343
Worsley M.A., Fabian A.C., Turner A.K., Celotti A., Iwasawa K.
2004, MNRAS, 350, 207 astro-ph/0310366


The effects of periodically gapped time series on cross-correlation lag determinations
Zhang Y.-H., Cagnoni I., Treves A., Celotti A., Maraschi L.
2004, ApJ, 605, 98 astro-ph/0401287


BeppoSAX observations of 1-Jy BL Lacertae objects. II.
Padovani P., Costamante L., Giommi P., Ghisellini G., Celotti A., Wolter A.
2004, MNRAS, 347, 1282 astro-ph/0311084


Extended X-ray emission in the high redshift quasar GB 1508+5714 at z=4.3
Yuan W., Fabian A.C., Celotti A., Jonker P.G.
2003, MNRAS, 346, L7 astro-ph/0309318


Is there a dichotomy in the radio loudness of quasars ?
Cirasuolo M., Celotti A., Magliocchetti M., Danese L.
2003, MNRAS, 346, 447 astro-ph/0306415


Extremely hard GRB spectra prune down the forest of emission models
Ghirlanda G., Celotti A., Ghisellini G.
2003, A&A, 406, 879 astro-ph/0210693


Evidence for anisotropy in the distribution of short-lived gamma-ray bursts
Magliocchetti M., Ghirlanda G., Celotti A.
2003, MNRAS, 343, 255 astro-ph/0302009


A multi-wavelength test of the FR I - BL Lac unifying model
Trussoni E., Capetti A., Celotti A., Chiaberge M., Feretti L.
2003, A&A, 403, 889 astro-ph/0304018


Clumps in large scale relativistic jets
Tavecchio F., Ghisellini G., Celotti A.
2003, A&A, 403, 83 astro-ph/0303161


The radio loud/radio quiet dichotomy: news from the 2dF QSO redshift survey
Cirasuolo M., Magliocchetti M., Celotti A., Danese L.
2003, MNRAS, 341, 993 astro-ph/0301526


The BL Lac objects OQ 530 and S5 0716+714. Simoultaneous observations in the X-rays, radio, optical and TeV bands
Tagliaferri G., Ravasio M., Ghisellini G., Giommi P. Massaro E., Nesci R., Tosti G., Aller M.F., Aller H.D., Celotti A., Maraschi L., Tavecchio F., Wolter A.
2003, A&A, 400, 487 astro-ph/0301117


A fireworks model for Gamma-Ray Bursts
Barbiellini G., Celotti A., Longo F.
2003, MNRAS, 339, L17 astro-ph/0112432


Chandra reveals X-rays along the radio axis in the quasar 3C 9 at z=2.012
Fabian A.C., Celotti A., Johnstone R.M.
2003, MNRAS, 338, L7 astro-ph/0204488


1WGA J1216.9+3347: Chandra finds an extremely steep Ultraluminous X-ray source
Cagnoni I., Turolla R., Treves A., Huang J.-S., Elvis M., Celotti A.
2003, ApJ, 582, 654 astro-ph/0209293


Events in the life of a cocoon surrounding a light, collapsar jet
Ramirez-Ruiz E., Celotti A., Rees M.J.
2002, MNRAS, 337, 1349 astro-ph/0205108


ROSAT blank field sources. I. Sample selection and archival data
Cagnoni I, Elvis M., Kim D.W., Nicastro F., Celotti A.
2002, ApJ, 579, 148 astro-ph/0207085


Understanding the nature of FR II optical nuclei: a new diagnostic plane of radio galaxies
Chiaberge M., Capetti A., Celotti A.
2002, A&A, 394, 791 astro-ph/0207654


Time resolved spectral analysis of bright gamma-ray bursts
Ghirlanda G., Celotti A., Ghisellini G.
2002, A&A, 393, 409 astro-ph/0206377


X-ray spectra produced by a hot plasma containing cold clouds
Malzac J., Celotti A.
2002, MNRAS, 335, 23 astro-ph/0204405


Spectral energy distribution of flat spectrum radio quasars observed with BeppoSAX
Tavecchio F., Maraschi G., Ghisellini G., Celotti A., Chiappetti L., Comastri A., Fossati G., Grandi P., Pian E., Tagliaferri G., Treves A., Sambruna R.M.
2002, ApJ, 575, 137 astro-ph/0207157


Four years monitoring of blazar PKS 2155-304 with BeppoSAX: probing the dynamics of the jet
Zhang Y.-H., Treves A., Celotti A., Chiappetti L., Ghisellini G., Fossati G., Maraschi L., Pian E., Tagliaferri G., Tavecchio F.
2002, ApJ, 572, 762 astro-ph/0202378


Low power BL Lacertae objects and the blazar sequence. Clues on the particle acceleration process
Ghisellini G., Celotti A., Costamante L.
2002, A&A, 386, 833 astro-ph/0202367


BL Lacertae: complex spectral variability and rapid synchrotron flare detected with BeppoSAX
Ravasio M., Tagliaferri G., Ghisellini G., Giommi P, Nesci R., Massaro E., Chiappetti L., Celotti A., Costamante L., Maraschi L., Tavecchio F., Tosti G., Treves A., Wolter A., Balonek T., Carini M., Kato T., Kurtanidze O., Montagni F., Nicolashvili M., Noble J., Nucciarelli G., Raiteri C.M., Sclavi S., Uemura M., Villata M.
2002, A&A, 383, 763 astro-ph/0201307


Spectral Survey of BL Lacs - new spectra and results
Beckmann V., Wolter A., Celotti A., Costamante L., Ghisellini G., Giommi P., Maccacaro T., Tagliaferri G.
2002, A&A, 383, 410 astro-ph/0112311


The HST survey of the B2 sample of radio-galaxies: optical nuclei and the FR I/BLLac unified scheme
Capetti A., Celotti A., Chiaberge M., de Ruiter H.R., Fanti R., Morganti R., Parma P.
2002, A&A, 383, 104 astro-ph/0112151


Spectral energy distribution of 3C 279 rivisited: BeppoSAX observations and variability models
Ballo L., Maraschi L., Tavecchio F., Celotti A., Fossati G., Ghisellini G., Pian E., Raiteri C., Tagliaferri G., Treves A., Urry C.M., Villata M.
2002, ApJ, 567, 50 astro-ph/0111499


The properties of the X-ray holes in the intracluster medium of the Perseus cluster
Fabian A.C., Celotti A., Blundell K.M., Kassim N.E., Perley R.A.
2002, MNRAS, 331, 369 astro-ph/0111418


Radio properties of radio sources at 1 mJy
Magliocchetti M., Celotti A., Danese L.
2002, MNRAS, 329, 377 astro-ph/0110251


The optical afterglow of GRB000911: evidence for an associated supernova?
Lazzati D., Covino S., Ghisellini G., Fugazza D., Campana S., Saracco P., Price P.A., Berger E., Kulkarni S., Ramirez-Ruiz E., Cimatti A., Della Valle M., di Serego Alighieri S., Celotti A., Haardt F., Israel G.L., Stella L.
2001, A&A, 378, 996 astro-ph/0109287


The dividing line between FR I and FR II radio-galaxies
Ghisellini G., Celotti A.
2001, A&A, 379, L1 astro-ph/0106570


Theoretical implications from the spectral evolution of Mkn 501 observed with BeppoSAX
Tavecchio F., Maraschi L., Chiappetti L., Celotti A., Fossati G., Ghisellini G., Palazzi E., Raiteri C.M., Sambruna R.M., Treves A., Urry C.M., Villata M., Aharonian F., Djannati-Atai A., Krawczynski H., Smith D.
2001, ApJ, 554, 710


Relativistic large scale jets and minimum power requirements
Ghisellini G., Celotti A.
2001, MNRAS, 327, 739 astro-ph/0103007


Internal shocks in the jets of radio-loud quasars
Spada M., Ghisellini G., Lazzati D., Celotti A.
2001, MNRAS, 325, 1559 astro-ph/0103424


1WGA J1226.9+3332: a high redshift cluster discovered by Chandra
Cagnoni I., Elvis M., Kim D.-W., Mazzotta P., Huang J.S., Celotti A.
2001, ApJ, 560, 86 astro-ph/0106066


The BL Lac heart of Centaurus A
Chiaberge M., Capetti A., Celotti A.
2001, MNRAS, 324, L33 astro-ph/0105159


An X-ray selected sample of radio-loud quasars
Wolter A., Celotti A.
2001, A&A, 371, 527 astro-ph/0103394


Extreme synchrotron BL Lac objects
Costamante L., Ghisellini G., Giommi P., Tagliaferri G., Celotti A., Chiaberge M., Fossati G., Maraschi L., Tavecchio F., Treves A., Wolter A.
2001, A&A, 371, 512 astro-ph/0103343


The 0.1-200 keV X-ray spectrum of the blazar PKS 2005-489 during an active state
Tagliaferri G., Ghisellini G., Giommi P., Celotti A., Chiaberge M., Chiappetti L., Glass I.S., Maraschi L., Tavecchio F., Treves A., Wolter A.
2001, A&A, 368, 38 astro-ph/0012503


The blazar GB 1428+4217: a warm absorber at z=4.72?
Fabian A.C., Celotti A., Iwasawa K., Ghisellini G.
2001, MNRAS, 324, 628 astro-ph/0101288


PMN O525-3343: soft X-ray spectral flattening in a blazar at z=4.4
Fabian A.C., Celotti A., Iwasawa K., McMahon R.G., Carilli C.L., Brandt W.N., Ghisellini G., Hook I.M.
2001, MNRAS, 323, 373 astro-ph/0011566


Large scale jets in AGN: multiwavelength mapping
Celotti A., Ghisellini G., Chiaberge M.
2001, MNRAS, 321, L1 astro-ph/0008021


Gamma-loud quasars: a view with BeppoSAX
Tavecchio F., Maraschi G., Ghisellini G., Celotti A., Chiappetti L., Comastri A., Fossati G., Grandi P., Pian E., Tagliaferri G., Treves A., Raiteri C.M., Sambruna R.M., Villata M.
2000, ApJ, 543, 535 astro-ph/0006443


Compton dragged gamma-ray bursts: the spectrum
Ghisellini G., Lazzati D., Celotti A., Rees M.J.
2000, MNRAS, 316, L45 astro-ph/0002049


Spectral energy distribution of FR I nuclei and the FR I/BL Lac unifying model
Capetti A., Trussoni, E., Celotti A., Feretti L., Chiaberge M.
2000, MNRAS, 318, 493 astro-ph/0007434


X-ray emission of Mkn 421: new clues from its spectral evolution. II. Spectral analysis and physical constraints
Fossati G., Celotti A., Chiaberge M., Zhang Y.-H., Chiappetti L., Ghisellini G., Maraschi L., Tavecchio F., Pian E., Treves A.
2000, ApJ, 541, 166 astro-ph/0005067


X-ray emission of Mkn 421: new clues from its spectral evolution. I. Temporal analysis
Fossati G., Celotti A., Chiaberge M., Zhang Y.-H., Chiappetti L., Ghisellini G., Maraschi L., Tavecchio F., Pian E., Treves A.
2000, ApJ, 541, 153 astro-ph/0005066


Does the unification of BL Lac and FR I radio galaxies require jet velocity structures?
Chiaberge M., Celotti A., Capetti A., Ghisellini G.
2000, A&A, 358, 104 astro-ph/0003197


ISO observations of the BL Lac object PKS 2155-304
Bertone E., Tagliaferri G., Ghisellini G., Treves A., Barr P., Celotti A., Chiaberge M., Maraschi L.
2000, A&A, 356, 1 astro-ph/0001507


The HST view of the FR I / FR II dichotomy
Chiaberge M., Capetti A., Celotti A.
2000, A&A, 355, 873 astro-ph/0002018


Constraints on the emission mechanisms of gamma-ray bursts
Ghisellini G., Celotti A., Lazzati D.
2000, MNRAS, 313, L1 astro-ph/9912461


The concave X-ray spectrum of the blazars ON 231: the signature of intermediate BL Lac objects
Tagliaferri G., Ghisellini G., Giommi P., Chiappetti L., Maraschi L., Celotti A., Chiaberge M., Fossati G., Massaro E., Maesano M., Montagni F., Nesci R., Nucciarelli G., Pian E., Raiteri C., Tavecchio F., Tosti G., Treves A., Villata M., Wolter A.
2000, A&A, 354, 431 astro-ph/9912055


Compton dragged gamma-ray bursts associated with supernovae
Lazzati D., Ghisellini G., Celotti A., Rees M.J.
2000, ApJ, 529, L17 astro-ph/9910191


Astrophysical evidence for the existence of black holes
Celotti A., Miller J.C., Sciama D.W.
1999, Classical and Quantum Gravity, Millenium Issue, 16, A3 astro-ph/9912186


Correlated variability of Mkn 421 at X-ray and TeV wavelenghts on timescales of hours
Maraschi L., Fossati G., Tavecchio F., Chiappetti L., Celotti A., Ghisellini G., Grandi P., Pian E., Tagliaferri G., Treves A., Breslin A.C., Buckley J.H., Carter-Lewis D.A., Catanese M., Cawley M.F., Fegan D.J., Fegan S., Finley J., Gaidos J., Hall T., Hillas A.M., Krennrich F., Lessard R.W., Masterson C., Moriarty P., Quinn J., Rose J., Samuelson F., Weekes T.C., Urry C.M., Takahashi T.
1999, ApJ, 526, L81


Rapid X-ray Variability of the BL Lacertae Object PKS 2155-304
Zhang Y.H., Celotti A., Treves A., Chiappetti L., Ghisellini G., Maraschi L., Pian E., Tagliaferri G., Tavecchio F., Urry C.M.
1999, ApJ, 527, 719 astro-ph/9907325


Constraints on the bulk Lorentz factor in the internal shock scenario for gamma-ray bursts
Lazzati D., Ghisellini G., Celotti A.
1999, MNRAS, 309, L13 astro-ph/9907070


The HST view of FR I radio galaxies: evidence for non-thermal nuclear sources
Chiaberge M., Capetti A., Celotti A.
1999, A&A, 349, 77 astro-ph/9907064


Variability of the extreme z=4.72 blazar, GB 1428+4217
Fabian A.C., Celotti A., Pooley G., Iwasawa K., Brandt W.N., McMahon R.G., Hoenig M.D.
1999, MNRAS, 308, L6 astro-ph/9907033


The blazar PKS 0528+134: new results from BeppoSAX observations
Ghisellini G., Tagliaferri G., Costamante L., Maraschi L., Celotti A., Fossati G., Bassani L., Cappi M., Frontera F., Pian E., Comastri A., Cavallone M., De Francesco G., Lanteri L., Raiteri C.M., Sobrito G., Villata M., Giarrusso S., Sacco B., Glass I.S., Grandi P., Molendi S., Padovani P., Palumbo G.G.C., Perola C., Salvati M., Treves A.
1999, A&A, 348, 63 astro-ph/9906165


Spectral evolution of PKS 2155-304 observed with BeppoSAX during an active gamma-ray phase
Chiappetti L., Maraschi L., Tavecchio F., Celotti A., Fossati G., Ghisellini G., Giommi P., Pian E., Tagliaferri G., Treves A., Urry C.M., Zhang Y.-H.
1999, ApJ, 521, 552 astro-ph/9903321


Magnetic flares in accretion disc coronae and the spectral states of black hole candidates: the case of GX 339-4
Di Matteo T., Celotti A., Fabian A.C.
1999, MNRAS, 304, 434 astro-ph/9805345


Quasi-thermal Comptonization in gamma-ray bursts
Ghisellini G., Celotti A.
1999, ApJ, 511, L93 astro-ph/9812079


Reprocessing of radiation by multi-phase gas in low luminosity accretion flows
Celotti A., Rees M.J.
1999, MNRAS, 305, L41 astro-ph/9807252


Testing the FR I/BL Lac unifying model with HST observations
Capetti A., Celotti A.
1999, MNRAS, 304, 434 astro-ph/9811407


The hidden X-ray Seyfert nucleus in 3C 273: BeppoSAX results
Haardt F., Fossati G., Grandi P., Celotti A., Pian E., Ghisellini G., Malizia A., Maraschi L., Paciesas W., Raiteri C.M., Tagliaferri G., Treves A., Urry C.M., Villata M., Wagner S.
1998, A&A, 340, 35 astro-ph/9806229


A unifying theoretical scheme for gamma-ray bright blazars
Ghisellini G., Celotti A., Fossati G., Maraschi L., Comastri A.
1998, MNRAS, 301, 451 astro-ph/9807317


A unifying view of the Spectral Energy Distributions of blazars
Fossati G., Maraschi L., Celotti A., Comastri A., Ghisellini G.
1998, MNRAS, 299, 433 astro-ph/9804103


Multiwavelenght observations of a dramatic high energy flare in the blazar 3C 279
Wehrle A.E., Pian E., Urry C.M., Maraschi L., Ghisellini G., Hartman R.C., Madejski G.M., Makino F., Marscher A.P., McHardy I.M., Wagner S.J.,Webb J.R., Aldering G.S., Aller M.F., Aller H.D., Backman D.E., Balonek T.J., Boltwood P., Bonnell J., Caplinger J., Celotti A., Collmar W., Dalton J., Drucker A., Falomo R., Fichtel C.E., Freudling W., Gear W.K., Gonzalez-Perez N., Hall P., Inoue H., Johnson W.N., Kazanas D., Kidger M.R., Kii T., Kollgaard R.I., Kondo Y., Kurfess J., Lawson A.J., Lin Y.C., McCollum B., McNaron-Brown K., Nair A.D., Penton S., Pesce J.E., Pohl M., Raiteri C.M., Renda M., Robson E.I., Sambruna R.M., Schirmer A.F., Shrades C., Sikora M., Sillanpaa A., Smith P.S., Stevens J.A., Stocke J., Takalo L.O., Terasranta H., Thompson D.J., Thompson R., Tornikoski M., Tosti G., Turcotte P., Treves A., Unwin S.C., Valtaoja E., Villata M., Xu W., Zook A.
1998, ApJ, 497, 178 astro-ph/9711243


The ASCA spectrum of the z=4.72 blazar, GB 1428+4217
Fabian A.C., Iwasawa K., Celotti A., Brandt W.N., McMahon R.G., Hook I.M.
1998, MNRAS, 295, L25 astro-ph/9801288


Limits from rapid TeV variability of Mrk 421
Celotti A., Fabian A.C., Rees M.J.
1998, MNRAS, 293, 239 astro-ph/9707131


Thermal material in relativistic jets
Celotti A., Kuncic Z., Rees M.J., Wardle J.F.C.
1998, MNRAS, 293, 288 astro-ph/9707132


A multi-wavelength study of the Seyfert 1 galaxy MCG-6-30-15
Reynolds C.S., Ward M.J., Fabian A.C., Celotti A.
1997, MNRAS, 291, 403 astro-ph/9707160


Cyclo-synchrotron emission from magnetically dominated active regions
Di Matteo T., Celotti A., Fabian A.C.
1997, MNRAS, 291, 805 astro-ph/9707130


Unifying models for X-ray selected and radio selected BL Lac objects
Fossati G., Celotti A., Ghisellini G., Maraschi L.
1997, MNRAS, 289, 136 astro-ph/9704113


Multiwavelength monitoring of the BL Lac object PKS 2155-304 in May 1994. II. The IUE campaign
Pian E., Urry M.C., Treves A., Maraschi L., Penton S., Shull J.M., Pesce J.E., Grandi P., Kii T., Kollgaard R.I., Madejski G., Marshall H., Wamsteker W., Celotti A., Courvoisier T.J.-L., Falomo R., Fink H.H., George I.M., Ghisellini G.
1997, ApJ, 486, 784 astro-ph/9706300


Multiwavelength monitoring of the BL Lac object PKS 2155-304 in May 1994. III. Probing the inner jet through multiwavelength correlations
Urry C.M., Treves A., Maraschi L., Marshall H., Kii T., Madejski G., Penton S., Pesce J.E., Pian E., Celotti A., Fujimoto R., Makino F., Otani C., Sambruna R.M., Sasaki K., Shull J.M., Smith P., Takahashi T., Tashiro M.
1997, ApJ, 486, 799 astro-ph/9704194


Jets and accretion processes in Active Galactic Nuclei: further clues
Celotti A., Padovani P., Ghisellini G.
1997, MNRAS, 286, 415 astro-ph/9611111


Dense, thin clouds and reprocessed radiation in the central regions of Active Galactic Nuclei
Kuncic Z., Celotti A., Rees M.J.
1997, MNRAS, 284, 717 astro-ph/9608163


The matter content of the jet in M87: evidence for an electron-positron jet
Reynolds C.S., Fabian A.C., Celotti A., Rees M.J.
1996, MNRAS, 283, 873 astro-ph/9603140


Pair dominated Active Galactic Nuclei and the origin of the X-ray background
Celotti A., Fabian A.C., Ghisellini G., Madau P.
1995, MNRAS, 277, 1169


Joint ROSAT - Compton GRO observations of the X-ray bright Seyfert galaxy IC 4329A
Madejski G.M., Zdziarski A.A., Turner T.J., Done C., Mushotzky R.F., Hartman R.C., Gehrels N., Connors A., Fabian A.C., Nandra K., Celotti A., Rees M.J., Johnson W.N, Grove E., Starr C.H.
1995, ApJ, 438, 672


Multi-wavelength monitoring of the BL Lac Object PKS 2155-304. IV. Multi-wavelength analysis
Edelson R., Krolik J., Madejski G., Maraschi L., Pike G., Urry C.M., Brinkmann W., Courvoisier T.J.-L., Ellithorpe J., Horne K., Treves A., Wagner S., Wamstecker W., Warwick R., Aller H.D., Aller M.F., Ashley M., Blecha A., Bouchet P., Bratschi P., Bregman J.N., Carini M., Celotti A., Donahue M., Feigelson E., Filippenko A.V., Fink H., George I., Glass I., Heidt J., Hewitt J., Hughes P., Kollgaard R., Kondo Y., Koraktar A., Leighly K., Marscher A., Matheson T., Martin P.G., Miller J.C., Noble H.R., O'Brien P., Pian E., Reichert G., Saken J., Shull J.M., Sitko M., Smith P., Sun W.-H., Tagliaferri G.
1994, ApJ, 438, 120


The X-ray spectrum of the highly-polarized quasar PKS 1502+106
George I.M., Nandra K., Turner T.J., Celotti A.
1994, ApJ, 436, L59


Physical processes in the X-ray/gamma-ray source of IC 4329A
Zdziarski A.A., Fabian A.C., Nandra K., Celotti A., Rees M.J., Done C., Coppi P.S., Madejski G.M.
1994, MNRAS, 269, L55


Polarization properties of synchrotron self-Compton radiation
Celotti A., Matt G.
1994, MNRAS, 268, 451


OSSE observations of the bright Seyfert 1 galaxy IC 4329A
Fabian A.C., Nandra K., Celotti A., Rees M.J., Grove J.E., Johnson W.N.
1993, ApJ, 416, L57 (ERRATUM: 1994, ApJ, 421, L95


The kinetic power and luminosity of parsec-scale radio jets; an argument for heavy jets
Celotti A., Fabian A.C.
1993, MNRAS, 264, 228


Unified model for X-ray and radio selected BL Lac objects
Celotti A., Maraschi L., Ghisellini G., Caccianiga A., Maccacaro T.
1993, ApJ, 416, 118


Radio-loud AGN and the extragalactic gamma-ray background
Padovani P., Ghisellini G., Fabian A.C., Celotti A.
1993, MNRAS, 260, L21


Relativistic bulk motion in Active Galactic Nuclei
Ghisellini G., Padovani P., Celotti A., Maraschi L.
1993, ApJ, 407, 65


A jet model for the gamma-ray emission of 3C 279
Maraschi L., Ghisellini G., Celotti A.
1992, ApJ, 397, L5


The role of electron-positron pairs in parsec-scale radio jets
Ghisellini G., Celotti A., George I.M., Fabian A.C.
1992, MNRAS, 258, 776


Dense thin clouds in the central regions of Active Galactic Nuclei
Celotti A., Fabian A.C., Rees, M.J.
1992, MNRAS, 255, 419


On the magnetic energy density in the compact region of Active Galactic Nuclei
Celotti A., Ghisellini G., Fabian A.C.
1991, MNRAS, 251, 529


Short term X-ray variability of the BL Lac object PKS 2155-304: power spectrum and cross-correlation analysis
Tagliaferri G., Stella L., Maraschi L., Treves A., Celotti A.
1991, ApJ, 380 78


A model for the spectral variability of BL Lac objects at high frequencies
Celotti A., Maraschi L., Treves A.
1991, ApJ, 377, 403

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