Advanced

Fermi Large Area Telescope First Source Catalog

Abdo, A. A.; Ackermann, M.; Ajello, M.; Allafort, A.; Antolini, E.; Atwood, W. B.; Axelsson, Magnus LU ; Baldini, L.; Ballet, J. and Barbiellini, G., et al. (2010) In The Astrophysical Journal Supplement Series 188(2). p.405-436
Abstract
We present a catalog of high-energy gamma-ray sources detected by the Large Area Telescope (LAT), the primary science instrument on the Fermi Gamma-ray Space Telescope (Fermi), during the first 11 months of the science phase of the mission, which began on 2008 August 4. The First Fermi-LAT catalog (1FGL) contains 1451 sources detected and characterized in the 100 MeV to 100 GeV range. Source detection was based on the average flux over the 11 month period, and the threshold likelihood Test Statistic is 25, corresponding to a significance of just over 4 sigma. The 1FGL catalog includes source location regions, defined in terms of elliptical fits to the 95% confidence regions and power-law spectral fits as well as flux measurements in five... (More)
We present a catalog of high-energy gamma-ray sources detected by the Large Area Telescope (LAT), the primary science instrument on the Fermi Gamma-ray Space Telescope (Fermi), during the first 11 months of the science phase of the mission, which began on 2008 August 4. The First Fermi-LAT catalog (1FGL) contains 1451 sources detected and characterized in the 100 MeV to 100 GeV range. Source detection was based on the average flux over the 11 month period, and the threshold likelihood Test Statistic is 25, corresponding to a significance of just over 4 sigma. The 1FGL catalog includes source location regions, defined in terms of elliptical fits to the 95% confidence regions and power-law spectral fits as well as flux measurements in five energy bands for each source. In addition, monthly light curves are provided. Using a protocol defined before launch we have tested for several populations of gamma-ray sources among the sources in the catalog. For individual LAT-detected sources we provide firm identifications or plausible associations with sources in other astronomical catalogs. Identifications are based on correlated variability with counterparts at other wavelengths, or on spin or orbital periodicity. For the catalogs and association criteria that we have selected, 630 of the sources are unassociated. Care was taken to characterize the sensitivity of the results to the model of interstellar diffuse gamma-ray emission used to model the bright foreground, with the result that 161 sources at low Galactic latitudes and toward bright local interstellar clouds are flagged as having properties that are strongly dependent on the model or as potentially being due to incorrectly modeled structure in the Galactic diffuse emission. (Less)
Please use this url to cite or link to this publication:
author
, et al. (More)
(Less)
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
catalogs, gamma rays: general
in
The Astrophysical Journal Supplement Series
volume
188
issue
2
pages
405 - 436
publisher
University of Chicago Press
external identifiers
  • wos:000278969400004
  • scopus:77953203960
ISSN
0067-0049
DOI
10.1088/0067-0049/188/2/405
language
English
LU publication?
yes
id
a80e5318-7dc9-4909-8727-a97765ad9d32 (old id 1630534)
date added to LUP
2010-07-21 15:44:55
date last changed
2018-07-15 03:46:42
@article{a80e5318-7dc9-4909-8727-a97765ad9d32,
  abstract     = {We present a catalog of high-energy gamma-ray sources detected by the Large Area Telescope (LAT), the primary science instrument on the Fermi Gamma-ray Space Telescope (Fermi), during the first 11 months of the science phase of the mission, which began on 2008 August 4. The First Fermi-LAT catalog (1FGL) contains 1451 sources detected and characterized in the 100 MeV to 100 GeV range. Source detection was based on the average flux over the 11 month period, and the threshold likelihood Test Statistic is 25, corresponding to a significance of just over 4 sigma. The 1FGL catalog includes source location regions, defined in terms of elliptical fits to the 95% confidence regions and power-law spectral fits as well as flux measurements in five energy bands for each source. In addition, monthly light curves are provided. Using a protocol defined before launch we have tested for several populations of gamma-ray sources among the sources in the catalog. For individual LAT-detected sources we provide firm identifications or plausible associations with sources in other astronomical catalogs. Identifications are based on correlated variability with counterparts at other wavelengths, or on spin or orbital periodicity. For the catalogs and association criteria that we have selected, 630 of the sources are unassociated. Care was taken to characterize the sensitivity of the results to the model of interstellar diffuse gamma-ray emission used to model the bright foreground, with the result that 161 sources at low Galactic latitudes and toward bright local interstellar clouds are flagged as having properties that are strongly dependent on the model or as potentially being due to incorrectly modeled structure in the Galactic diffuse emission.},
  author       = {Abdo, A. A. and Ackermann, M. and Ajello, M. and Allafort, A. and Antolini, E. and Atwood, W. B. and Axelsson, Magnus and Baldini, L. and Ballet, J. and Barbiellini, G. and Bastieri, D. and Baughman, B. M. and Bechtol, K. and Bellazzini, R. and Belli, F. and Berenji, B. and Bisello, D. and Blandford, R. D. and Bloom, E. D. and Bonamente, E. and Bonnell, J. and Borgland, A. W. and Bouvier, A. and Bregeon, J. and Brez, A. and Brigida, M. and Bruel, P. and Burnett, T. H. and Busetto, G. and Buson, S. and Caliandro, G. A. and Cameron, R. A. and Campana, R. and Canadas, B. and Caraveo, P. A. and Carrigan, S. and Casandjian, J. M. and Cavazzuti, E. and Ceccanti, M. and Cecchi, C. and Celik, Oe. and Charles, E. and Chekhtman, A. and Cheung, C. C. and Chiang, J. and Cillis, A. N. and Ciprini, S. and Claus, R. and Cohen-Tanugi, J. and Conrad, J. and Corbet, R. and Davis, D. S. and DeKlotz, M. and den Hartog, P. R. and Dermer, C. D. and de Angelis, A. and de Luca, A. and de Palma, F. and Digel, S. W. and Dormody, M. and do Couto E Silva, E. and Drell, P. S. and Dubois, R. and Dumora, D. and Fabiani, D. and Farnier, C. and Favuzzi, C. and Fegan, S. J. and Ferrara, E. C. and Focke, W. B. and Fortin, P. and Frailis, M. and Fukazawa, Y. and Funk, S. and Fusco, P. and Gargano, F. and Gasparrini, D. and Gehrels, N. and Germani, S. and Giavitto, G. and Giebels, B. and Giglietto, N. and Giommi, P. and Giordano, F. and Giroletti, M. and Glanzman, T. and Godfrey, G. and Grenier, I. A. and Grondin, M. -H. and Grove, J. E. and Guillemot, L. and Guiriec, S. and Gustafsson, M. and Hadasch, D. and Hanabata, Y. and Harding, A. K. and Hayashida, M. and Hays, E. and Healey, S. E. and Hill, A. B. and Horan, D. and Hughes, R. E. and Iafrate, G. and Johannesson, G. and Johnson, A. S. and Johnson, R. P. and Johnson, T. J. and Johnson, W. N. and Kamae, T. and Katagiri, H. and Kataoka, J. and Kawai, N. and Kerr, M. and Knoedlseder, J. and Kocevski, D. and Kuss, M. and Lande, J. and Landriu, D. and Latronico, L. and Lee, S. -H. and Lemoine-Goumard, M. and Lionetto, A. M. and Garde, M. Llena and Longo, F. and Loparco, F. and Lott, B. and Lovellette, M. N. and Lubrano, P. and Madejski, G. M. and Makeev, A. and Marangelli, B. and Marelli, M. and Massaro, E. and Mazziotta, M. N. and McConville, W. and McEnery, J. E. and Michelson, P. F. and Minuti, M. and Mitthumsiri, W. and Mizuno, T. and Moiseev, A. A. and Mongelli, M. and Monte, C. and Monzani, M. E. and Moretti, E. and Morselli, A. and Moskalenko, I. V. and Murgia, S. and Nakajima, H. and Nakamori, T. and Naumann-Godo, M. and Nolan, P. L. and Norris, J. P. and Nuss, E. and Ohno, M. and Ohsugi, T. and Omodei, N. and Orlando, E. and Ormes, J. F. and Ozaki, M. and Paccagnella, A. and Paneque, D. and Panetta, J. H. and Parent, D. and Pelassa, V. and Pepe, M. and Pesce-Rollins, M. and Pinchera, M. and Piron, F. and Porter, T. A. and Poupard, L. and Raino, S. and Rando, R. and Ray, P. S. and Razzano, M. and Razzaque, S. and Rea, N. and Reimer, A. and Reimer, O. and Reposeur, T. and Ripken, J. and Ritz, S. and Rochester, L. S. and Rodriguez, A. Y. and Romani, R. W. and Roth, M. and Sadrozinski, H. F. -W. and Salvetti, D. and Sanchez, D. and Sander, A. and Parkinson, P. M. Saz and Scargle, J. D. and Schalk, T. L. and Scolieri, G. and Sgro, C. and Shaw, M. S. and Siskind, E. J. and Smith, D. A. and Smith, P. D. and Spandre, G. and Spinelli, P. and Starck, J. -L. and Stephens, T. E. and Striani, E. and Strickman, M. S. and Strong, A. W. and Suson, D. J. and Tajima, H. and Takahashi, H. and Takahashi, T. and Tanaka, T. and Thayer, J. B. and Thayer, J. G. and Thompson, D. J. and Tibaldo, L. and Tibolla, O. and Tinebra, F. and Torres, D. F. and Tosti, G. and Tramacere, A. and Uchiyama, Y. and Usher, T. L. and Van Etten, A. and Vasileiou, V. and Vilchez, N. and Vitale, V. and Waite, A. P. and Wallace, E. and Wang, P. and Watters, K. and Winer, B. L. and Wood, K. S. and Yang, Z. and Ylinen, T. and Ziegler, M.},
  issn         = {0067-0049},
  keyword      = {catalogs,gamma rays: general},
  language     = {eng},
  number       = {2},
  pages        = {405--436},
  publisher    = {University of Chicago Press},
  series       = {The Astrophysical Journal Supplement Series},
  title        = {Fermi Large Area Telescope First Source Catalog},
  url          = {http://dx.doi.org/10.1088/0067-0049/188/2/405},
  volume       = {188},
  year         = {2010},
}