Results 31 to 40 of about 479,061 (218)

EARLY FERMI GAMMA-RAY SPACE TELESCOPE OBSERVATIONS OF THE QUASAR 3C 454.3 [PDF]

The Astrophysical Journal, 2009
This is the first report of Fermi Gamma-ray Space Telescope observations of the quasar 3C 454.3, which has been undergoing pronounced long-term outbursts since 2000. The data from the Large Area Telescope (LAT), covering 2008 July 7 - October 6, indicate strong, highly variable gamma-ray emission with an average flux of ~3 x 10^{-6} photons cm^{-2} s^{-
A. A. Abdo, M. Ackermann, M. Ajello, W. B. Atwood, M. Axelsson, L. Baldini, J. Ballet, G. Barbiellini, D. Bastieri, M. Battelino, B. M. Baughman, K. Bechtol, R. Bellazzini, B. Berenji, R. D. Blandford, E. D. Bloom, E. Bonamente, A. W. Borgland, A. Bouvier, J. Bregeon, A. Brez, M. Brigida, P. Bruel, T. H. Burnett, G. A. Caliandro, R. A. Cameron, P. A. Caraveo, J. M. Casandjian, E. Cavazzuti, C. Cecchi, E. Charles, S. Chaty, A. Chekhtman, C. C. Cheung, J. Chiang, S. Ciprini, R. Claus, J. Cohen-Tanugi, L. R. Cominsky, J. M. Conrad, L. Costamante, S. Cutini, C. D. Dermer, A. De Angelis, F. de Palma, S. W. Digel, E. do Couto e Silva, D. Donato, P. S. Drell, R. Dubois, D. Dumora, C. Farnier, C. Favuzzi, W. B. Focke, L. Foschini, M. Frailis, L. Fuhrmann, Y. Fukazawa, S. Funk, P. Fusco, F. Gargano, D. Gasparrini, N. Gehrels, S. Germani, B. Giebels, N. Giglietto, P. Giommi, F. Giordano, T. Glanzman, G. Godfrey, I. A. Grenier, M.-H. Grondin, J. E. Grove, L. Guillemot, S. Guiriec, Y. Hanabata, A. K. Harding, R. C. Hartman, M. Hayashida, E. Hays, R. E. Hughes, G. Jóhannesson, A. S. Johnson, R. P. Johnson, W. N. Johnson, T. Kamae, H. Katagiri, J. Kataoka, N. Kawai, M. Kerr, J. Knödlseder, M. Kocian, F. Kuehn, M. Kuss, L. Latronico, S.-H. Lee, M. Lemoine‐Goumard, F. Longo, F. Loparco, B. Lott   +99 more
openalex   +17 more sources

Identification of Gamma-Ray Point Sources in Fermi-LAT Data with Minimum Spanning Tree Algorithm [PDF]

Iranian Journal of Astronomy and Astrophysics, 2023
Gamma rays are the most energetic photons in the electromagnetic spectrum, detected with ground-based and space-based detectors in different energy ranges from sources in our galaxy and beyond.
Mehran Soor, Fatemeh Akhondi, Hadi Hedayati   +2 more
doaj   +1 more source

Fundamental physics in space with the Fermi Gamma-ray Space Telescope [PDF]

Journal of Physics: Conference Series, 2011
Successfully launched in June 2008, the Fermi Gamma-ray Space Telescope, formerly named GLAST, has been observing the high-energy gamma-ray sky with unprecedented sensitivity for more than two years, opening a new window on a wide variety of exotic astrophysical objects.
L. Baldini
openalex   +5 more sources

Fermi Gamma-Ray Space Telescope [PDF]

Optical Engineering, 2012
The Fermi Gamma-ray Space Telescope, launched in June 2008, is an observatory designed to survey the high-energy gamma-ray sky. The primary instrument, the Large Area Telescope (LAT), provides observations from 20 MeV to greater than 300 GeV. A second instrument, the Gamma-ray Burst Monitor (GBM), provides observations of transients from less than 10 ...
Julie McEnery, P. F. Michelson, W. S. Pačiesas, S. Ritz   +3 more
openalex   +4 more sources

Cosmic ray studies with the Fermi Gamma-ray Space Telescope Large Area Telescope [PDF]

Astroparticle Physics, 2011
20 pages, 12 figures, to be published in Astroparticle ...
D. J. Thompson, L. Baldini, Y. Uchiyama
openalex   +5 more sources

Multichannel Poisson denoising and deconvolution on the sphere: application to theFermiGamma-ray Space Telescope [PDF]

Astronomy & Astrophysics, 2012
17 pages, 10 ...
Jérémy Schmitt, Jean‐Luc Starck, J. M. Casandjian, Jalal Fadili, I. A. Grenier   +4 more
openalex   +7 more sources

Fermi detection of delayed GeV emission from the short GRB 081024B [PDF]

, 2010
We report on the detailed analysis of the high-energy extended emission from the short Gamma-Ray Burst (GRB) 081024B, detected by the Fermi Gamma-ray Space Telescope.
A. A. Abdo, A. A. Moiseev, A. Bouvier, A. Brez, A. Chekhtman, A. de Angelis, A. J. van der Horst, A. K. Harding, A. Makeev, A. Morselli, A. P. Waite, A. Reimer, A. S. Johnson, A. Sander, A. Tramacere, A. von Kienlin, A. W. Borgland, A. Y. Rodriguez, Abdo ., Abdo ., Asano, Asano, Atwood ., B. Berenji, B. Giebels, B. L. Winer, B. Lott, B. M. Baughman, Bartlett, Bloom, Bottcher, C. Cecchi, C. D. Dermer, C. Farnier, C. Favuzzi, C. Kouveliotou, C. Meegan, C. Meurer, C. Monte, C. Sgrò, C. Wilson-Hodge, Cenko, Connaughton, Corsi, D. A. Smith, D. Bastieri, D. Dumora, D. F. Torres, D. Gasparrini, D. Horan, D. J. Suson, D. J. Thompson, D. Kocevski, D. Paneque, D. Parent, D. Sanchez, Dermer, Dermer, E. Bissaldi, E. Bonamente, E. Charles, E. D. Bloom, E. do Couto e Silva, E. Hays, E. J. Siskind, E. Moretti, E. Nuss, E. Orlando, E. Troja, F. de Palma, F. Gargano, F. Giordano, F. Kuehn, F. Longo, F. Loparco, F. Piron, F. Ryde, G. A. Caliandro, G. Barbiellini, G. Fishman, G. Godfrey, G. Jóhannesson, G. M. Madejski, G. Spandre, G. Tagliaferri, G. Tosti, Gehrels, Ghirlanda, Granot, Guidorzi, Guidorzi, H. F.-W. Sadrozinski, H. Katagiri, H. Tajima, H. Takahashi, He, I. A. Grenier, I. V. Moskalenko, J. B. Thayer, J. Ballet, J. Bregeon, J. Chiang, J. Cohen-Tanugi, J. Conrad, J. D. Scargle, J. E. Grove, J. E. McEnery, J. F. Ormes, J. G. Thayer, J. Granot, J. H. Panetta, J. Kataoka, J. Knödlseder, J. Lande, J. M. Burgess, J. M. Casandjian, J. P. Norris, J. Ripken, K. Asano, K. Bechtol, K. S. Wood, K. Toma, Kaneko, L. Baldini, L. Guillemot, L. Latronico, L. R. Cominsky, L. S. Rochester, L. Tibaldo, Le, M. Ackermann, M. Ajello, M. Axelsson, M. Brigida, M. E. Monzani, M. Frailis, M. Hayashida, M. Kerr, M. Kuss, M. L. Kocian, M. Lemoine-Goumard, M. N. Lovellette, M. N. Mazziotta, M. Ohno, M. Pepe, M. Pesce-Rollins, M. Razzano, M. Roth, M. S. Briggs, M. S. Jackson, M. S. Strickman, M. Stamatikos, M. Ziegler, M.-H. Grondin, Mazets, Meegan, N. Gehrels, N. Giglietto, N. Kawai, N. Komin, N. Omodei, N. Vilchez, Narayan, Norris, O. Reimer, Ohno, Omodei, P. A. Caraveo, P. Bruel, P. D. Smith, P. F. Michelson, P. Fortin, P. Fusco, P. Giommi, P. L. Nolan, P. Lubrano, P. M. Saz Parkinson, P. Mészáros, P. N. Bhat, P. S. Drell, P. Spinelli, P. Wang, R. A. Cameron, R. Bellazzini, R. Claus, R. D. Blandford, R. Dubois, R. E. Hughes, R. H. Haynes, R. M. Kippen, R. Preece, R. Rando, R. Yamazaki, Rosswog, Ruffert, S. Buson, S. Carrigan, S. Ciprini, S. Cutini, S. Funk, S. Germani, S. Guiriec, S. J. Fegan, S. McBreen, S. McGlynn, S. Murgia, S. Rainò, S. Razzaque, S. Ritz, S. W. Digel, T. A. Porter, T. Glanzman, T. H. Burnett, T. Kamae, T. L. Schalk, T. L. Usher, T. Mizuno, T. Nakamori, T. Ohsugi, T. Reposeur, T. Tanaka, T. Ylinen, V. Chaplin, V. Connaughton, V. Pelassa, V. Vasileiou, V. Vitale, W. B. Atwood, W. B. Focke, W. Mitthumsiri, W. N. Johnson, W. S. Paciesas, X. F. Wu, Y. Fukazawa, Y. Hanabata, Y. Uchiyama, Zhang, Ö. Çelik   +237 more
core   +15 more sources

Interpretation and implications of the non-detection of GeV spectrum excess by theFermi Gamma-ray Space Telescopein most gamma-ray bursts [PDF]

Monthly Notices of the Royal Astronomical Society, 2009
10 pages including 2 tables and 7 figures, accepted by MNRAS (typos corrected)
Yi-Zhong Fan
openalex   +6 more sources

Exploring the extreme universe with the Fermi Gamma-Ray Space Telescope [PDF]

Physics Today, 2012
The Fermi orbiter, mapping the entire gamma-ray sky every three hours, monitors the cosmos for high-energy phenomena both fleeting and enduring.
D. J. Thompson, S. W. Digel, J. L. Racusin   +2 more
openalex   +4 more sources

Large-scale Galactic diffuse gamma rays observed with the Fermi Gamma-Ray Space Telescope

, 2009
Proceedings of the 31st ICRC, Lodz, Poland, July 2009.
A. W. Strong
openalex   +4 more sources