Fermi Large Area Telescope First Source Catalog

doi:10.1088/0067-0049/188/2/405

Title: Fermi Large Area Telescope First Source Catalog

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Abstract

Here, 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 4σ. 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, 630more »« less

Authors:: Abdo, A. A.; Ackermann, M.; Ajello, M.; Allafort, A.; Antolini, E.; Atwood, W. B.; Axelsson, M.; Baldini, L.; Ballet, J.; Barbiellini, G.; Bastieri, D.; Baughman, B. M.; Bechtol, K.; Bellazzini, R.; Belli, F.; Berenji, B.; Bisello, D.; Blandford, R. D.; Bloom, E. D.; Bonamente, E. more »« less

Publication Date:: 2010-05-25

Research Org.:: SLAC National Accelerator Lab., Menlo Park, CA (United States)

Sponsoring Org.:: USDOE; National Aeronautics and Space Administration (NASA)

Contributing Org.:: The Fermi-LAT Collaboration

OSTI Identifier:: 1357558

Grant/Contract Number:: AC02-76SF00515

Resource Type:: Accepted Manuscript

Journal Name:: Astrophysical Journal, Supplement Series

Additional Journal Information:: Journal Volume: 188; Journal Issue: 2; Journal ID: ISSN 0067-0049

Publisher:: American Astronomical Society

Country of Publication:: United States

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS; catalogs; gamma rays

Citation Formats


                    Abdo, A. A., Ackermann, M., Ajello, M., Allafort, A., Antolini, E., Atwood, W. B., Axelsson, M., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Baughman, B. M., Bechtol, K., Bellazzini, R., Belli, F., Berenji, B., Bisello, D., Blandford, R. D., Bloom, E. D., Bonamente, E., Bonnell, J., Borgland, A. W., Bouvier, A., Bregeon, J., Brez, A., Brigida, M., Bruel, P., Burnett, T. H., Busetto, G., Buson, S., Caliandro, G. A., Cameron, R. A., Campana, R., Canadas, B., Caraveo, P. A., Carrigan, S., Casandjian, J. M., Cavazzuti, E., Ceccanti, M., Cecchi, C., Çelik, Ö., Charles, E., Chekhtman, A., Cheung, C. C., Chiang, J., Cillis, A. N., Ciprini, S., Claus, R., Cohen-Tanugi, J., Conrad, J., Corbet, R., Davis, D. S., DeKlotz, M., den Hartog, P. R., Dermer, C. D., de Angelis, A., de Luca, A., de Palma, F., Digel, S. W., Dormody, M., do Couto e Silva, E., Drell, P. S., Dubois, R., Dumora, D., Fabiani, D., Farnier, C., Favuzzi, C., Fegan, S. J., Ferrara, E. C., Focke, W. B., Fortin, P., Frailis, M., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Gehrels, N., Germani, S., Giavitto, G., Giebels, B., Giglietto, N., Giommi, P., Giordano, F., Giroletti, M., Glanzman, T., Godfrey, G., Grenier, I. A., Grondin, M. -H., Grove, J. E., Guillemot, L., Guiriec, S., Gustafsson, M., Hadasch, D., Hanabata, Y., Harding, A. K., Hayashida, M., Hays, E., Healey, S. E., Hill, A. B., Horan, D., Hughes, R. E., Iafrate, G., Jóhannesson, G., Johnson, A. S., Johnson, R. P., Johnson, T. J., Johnson, W. N., Kamae, T., Katagiri, H., Kataoka, J., Kawai, N., Kerr, M., Knödlseder, J., Kocevski, D., Kuss, M., Lande, J., Landriu, D., Latronico, L., Lee, S. -H., Lemoine-Goumard, M., Lionetto, A. M., Llena Garde, M., Longo, F., Loparco, F., Lott, B., Lovellette, M. N., Lubrano, P., Madejski, G. M., Makeev, A., Marangelli, B., Marelli, M., Massaro, E., Mazziotta, M. N., McConville, W., McEnery, J. E., Michelson, P. F., Minuti, M., Mitthumsiri, W., Mizuno, T., Moiseev, A. A., Mongelli, M., Monte, C., Monzani, M. E., Moretti, E., Morselli, A., Moskalenko, I. V., Murgia, S., Nakajima, H., Nakamori, T., Naumann-Godo, M., Nolan, P. L., Norris, J. P., Nuss, E., Ohno, M., Ohsugi, T., Omodei, N., Orlando, E., Ormes, J. F., Ozaki, M., Paccagnella, A., Paneque, D., Panetta, J. H., Parent, D., Pelassa, V., Pepe, M., Pesce-Rollins, M., Pinchera, M., Piron, F., Porter, T. A., Poupard, L., Rainò, S., Rando, R., Ray, P. S., Razzano, M., Razzaque, S., Rea, N., Reimer, A., Reimer, O., Reposeur, T., Ripken, J., Ritz, S., Rochester, L. S., Rodriguez, A. Y., Romani, R. W., Roth, M., Sadrozinski, H. F. -W., Salvetti, D., Sanchez, D., Sander, A., Saz Parkinson, P. M., Scargle, J. D., Schalk, T. L., Scolieri, G., Sgrò, C., Shaw, M. S., Siskind, E. J., Smith, D. A., Smith, P. D., Spandre, G., Spinelli, P., Starck, J. -L., Stephens, T. E., Striani, E., Strickman, M. S., Strong, A. W., Suson, D. J., Tajima, H., Takahashi, H., Takahashi, T., Tanaka, T., Thayer, J. B., Thayer, J. G., Thompson, D. J., Tibaldo, L., Tibolla, O., Tinebra, F., Torres, D. F., Tosti, G., Tramacere, A., Uchiyama, Y., Usher, T. L., Van Etten, A., Vasileiou, V., Vilchez, N., Vitale, V., Waite, A. P., Wallace, E., Wang, P., Watters, K., Winer, B. L., Wood, K. S., Yang, Z., Ylinen, T., and Ziegler, M. Fermi Large Area Telescope First Source Catalog.  United States: N. p., 2010. 
        Web.  doi:10.1088/0067-0049/188/2/405.

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                    Abdo, A. A., Ackermann, M., Ajello, M., Allafort, A., Antolini, E., Atwood, W. B., Axelsson, M., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Baughman, B. M., Bechtol, K., Bellazzini, R., Belli, F., Berenji, B., Bisello, D., Blandford, R. D., Bloom, E. D., Bonamente, E., Bonnell, J., Borgland, A. W., Bouvier, A., Bregeon, J., Brez, A., Brigida, M., Bruel, P., Burnett, T. H., Busetto, G., Buson, S., Caliandro, G. A., Cameron, R. A., Campana, R., Canadas, B., Caraveo, P. A., Carrigan, S., Casandjian, J. M., Cavazzuti, E., Ceccanti, M., Cecchi, C., Çelik, Ö., Charles, E., Chekhtman, A., Cheung, C. C., Chiang, J., Cillis, A. N., Ciprini, S., Claus, R., Cohen-Tanugi, J., Conrad, J., Corbet, R., Davis, D. S., DeKlotz, M., den Hartog, P. R., Dermer, C. D., de Angelis, A., de Luca, A., de Palma, F., Digel, S. W., Dormody, M., do Couto e Silva, E., Drell, P. S., Dubois, R., Dumora, D., Fabiani, D., Farnier, C., Favuzzi, C., Fegan, S. J., Ferrara, E. C., Focke, W. B., Fortin, P., Frailis, M., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Gehrels, N., Germani, S., Giavitto, G., Giebels, B., Giglietto, N., Giommi, P., Giordano, F., Giroletti, M., Glanzman, T., Godfrey, G., Grenier, I. A., Grondin, M. -H., Grove, J. E., Guillemot, L., Guiriec, S., Gustafsson, M., Hadasch, D., Hanabata, Y., Harding, A. K., Hayashida, M., Hays, E., Healey, S. E., Hill, A. B., Horan, D., Hughes, R. E., Iafrate, G., Jóhannesson, G., Johnson, A. S., Johnson, R. P., Johnson, T. J., Johnson, W. N., Kamae, T., Katagiri, H., Kataoka, J., Kawai, N., Kerr, M., Knödlseder, J., Kocevski, D., Kuss, M., Lande, J., Landriu, D., Latronico, L., Lee, S. -H., Lemoine-Goumard, M., Lionetto, A. M., Llena Garde, M., Longo, F., Loparco, F., Lott, B., Lovellette, M. N., Lubrano, P., Madejski, G. M., Makeev, A., Marangelli, B., Marelli, M., Massaro, E., Mazziotta, M. N., McConville, W., McEnery, J. E., Michelson, P. F., Minuti, M., Mitthumsiri, W., Mizuno, T., Moiseev, A. A., Mongelli, M., Monte, C., Monzani, M. E., Moretti, E., Morselli, A., Moskalenko, I. V., Murgia, S., Nakajima, H., Nakamori, T., Naumann-Godo, M., Nolan, P. L., Norris, J. P., Nuss, E., Ohno, M., Ohsugi, T., Omodei, N., Orlando, E., Ormes, J. F., Ozaki, M., Paccagnella, A., Paneque, D., Panetta, J. H., Parent, D., Pelassa, V., Pepe, M., Pesce-Rollins, M., Pinchera, M., Piron, F., Porter, T. A., Poupard, L., Rainò, S., Rando, R., Ray, P. S., Razzano, M., Razzaque, S., Rea, N., Reimer, A., Reimer, O., Reposeur, T., Ripken, J., Ritz, S., Rochester, L. S., Rodriguez, A. Y., Romani, R. W., Roth, M., Sadrozinski, H. F. -W., Salvetti, D., Sanchez, D., Sander, A., Saz Parkinson, P. M., Scargle, J. D., Schalk, T. L., Scolieri, G., Sgrò, C., Shaw, M. S., Siskind, E. J., Smith, D. A., Smith, P. D., Spandre, G., Spinelli, P., Starck, J. -L., Stephens, T. E., Striani, E., Strickman, M. S., Strong, A. W., Suson, D. J., Tajima, H., Takahashi, H., Takahashi, T., Tanaka, T., Thayer, J. B., Thayer, J. G., Thompson, D. J., Tibaldo, L., Tibolla, O., Tinebra, F., Torres, D. F., Tosti, G., Tramacere, A., Uchiyama, Y., Usher, T. L., Van Etten, A., Vasileiou, V., Vilchez, N., Vitale, V., Waite, A. P., Wallace, E., Wang, P., Watters, K., Winer, B. L., Wood, K. S., Yang, Z., Ylinen, T., & Ziegler, M. Fermi Large Area Telescope First Source Catalog.  United States.  doi:10.1088/0067-0049/188/2/405.

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                    Abdo, A. A., Ackermann, M., Ajello, M., Allafort, A., Antolini, E., Atwood, W. B., Axelsson, M., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Baughman, B. M., Bechtol, K., Bellazzini, R., Belli, F., Berenji, B., Bisello, D., Blandford, R. D., Bloom, E. D., Bonamente, E., Bonnell, J., Borgland, A. W., Bouvier, A., Bregeon, J., Brez, A., Brigida, M., Bruel, P., Burnett, T. H., Busetto, G., Buson, S., Caliandro, G. A., Cameron, R. A., Campana, R., Canadas, B., Caraveo, P. A., Carrigan, S., Casandjian, J. M., Cavazzuti, E., Ceccanti, M., Cecchi, C., Çelik, Ö., Charles, E., Chekhtman, A., Cheung, C. C., Chiang, J., Cillis, A. N., Ciprini, S., Claus, R., Cohen-Tanugi, J., Conrad, J., Corbet, R., Davis, D. S., DeKlotz, M., den Hartog, P. R., Dermer, C. D., de Angelis, A., de Luca, A., de Palma, F., Digel, S. W., Dormody, M., do Couto e Silva, E., Drell, P. S., Dubois, R., Dumora, D., Fabiani, D., Farnier, C., Favuzzi, C., Fegan, S. J., Ferrara, E. C., Focke, W. B., Fortin, P., Frailis, M., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Gehrels, N., Germani, S., Giavitto, G., Giebels, B., Giglietto, N., Giommi, P., Giordano, F., Giroletti, M., Glanzman, T., Godfrey, G., Grenier, I. A., Grondin, M. -H., Grove, J. E., Guillemot, L., Guiriec, S., Gustafsson, M., Hadasch, D., Hanabata, Y., Harding, A. K., Hayashida, M., Hays, E., Healey, S. E., Hill, A. B., Horan, D., Hughes, R. E., Iafrate, G., Jóhannesson, G., Johnson, A. S., Johnson, R. P., Johnson, T. J., Johnson, W. N., Kamae, T., Katagiri, H., Kataoka, J., Kawai, N., Kerr, M., Knödlseder, J., Kocevski, D., Kuss, M., Lande, J., Landriu, D., Latronico, L., Lee, S. -H., Lemoine-Goumard, M., Lionetto, A. M., Llena Garde, M., Longo, F., Loparco, F., Lott, B., Lovellette, M. N., Lubrano, P., Madejski, G. M., Makeev, A., Marangelli, B., Marelli, M., Massaro, E., Mazziotta, M. N., McConville, W., McEnery, J. E., Michelson, P. F., Minuti, M., Mitthumsiri, W., Mizuno, T., Moiseev, A. A., Mongelli, M., Monte, C., Monzani, M. E., Moretti, E., Morselli, A., Moskalenko, I. V., Murgia, S., Nakajima, H., Nakamori, T., Naumann-Godo, M., Nolan, P. L., Norris, J. P., Nuss, E., Ohno, M., Ohsugi, T., Omodei, N., Orlando, E., Ormes, J. F., Ozaki, M., Paccagnella, A., Paneque, D., Panetta, J. H., Parent, D., Pelassa, V., Pepe, M., Pesce-Rollins, M., Pinchera, M., Piron, F., Porter, T. A., Poupard, L., Rainò, S., Rando, R., Ray, P. S., Razzano, M., Razzaque, S., Rea, N., Reimer, A., Reimer, O., Reposeur, T., Ripken, J., Ritz, S., Rochester, L. S., Rodriguez, A. Y., Romani, R. W., Roth, M., Sadrozinski, H. F. -W., Salvetti, D., Sanchez, D., Sander, A., Saz Parkinson, P. M., Scargle, J. D., Schalk, T. L., Scolieri, G., Sgrò, C., Shaw, M. S., Siskind, E. J., Smith, D. A., Smith, P. D., Spandre, G., Spinelli, P., Starck, J. -L., Stephens, T. E., Striani, E., Strickman, M. S., Strong, A. W., Suson, D. J., Tajima, H., Takahashi, H., Takahashi, T., Tanaka, T., Thayer, J. B., Thayer, J. G., Thompson, D. J., Tibaldo, L., Tibolla, O., Tinebra, F., Torres, D. F., Tosti, G., Tramacere, A., Uchiyama, Y., Usher, T. L., Van Etten, A., Vasileiou, V., Vilchez, N., Vitale, V., Waite, A. P., Wallace, E., Wang, P., Watters, K., Winer, B. L., Wood, K. S., Yang, Z., Ylinen, T., and Ziegler, M. Tue .  
        "Fermi Large Area Telescope First Source Catalog".  United States.  doi:10.1088/0067-0049/188/2/405.  https://www.osti.gov/servlets/purl/1357558.

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@article{osti_1357558,

  title        = {Fermi Large Area Telescope First Source Catalog},

  author       = {Abdo, A. A. and Ackermann, M. and Ajello, M. and Allafort, A. and Antolini, E. and Atwood, W. B. and Axelsson, M. 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 Çelik, Ö. 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 Jóhannesson, 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 Knödlseder, 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 Llena Garde, M. 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 Rainò, 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 Saz Parkinson, P. M. and Scargle, J. D. and Schalk, T. L. and Scolieri, G. and Sgrò, 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.},

  abstractNote = {Here, 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 4σ. 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. In conclusion, 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.},

  doi          = {10.1088/0067-0049/188/2/405},

  journal      = {Astrophysical Journal, Supplement Series},

  number       = 2,

  volume       = 188,

  place        = {United States},

  year         = {2010},

  month        = {5}

}

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DOI: 10.1088/0067-0049/188/2/405

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Fermi Large Area Telescope third source catalog

Journal Article Acero, F. ; Ackermann, M. ; Ajello, M. ; ... - The Astrophysical Journal. Supplement Series (Online)

Here, we present the third Fermi Large Area Telescope (LAT) source catalog (3FGL) of sources in the 100 MeV–300 GeV range. Based on the first 4 yr of science data from the Fermi Gamma-ray Space Telescope mission, it is the deepest yet in this energy range. Relative to the Second Fermi LAT catalog, the 3FGL catalog incorporates twice as much data, as well as a number of analysis improvements, including improved calibrations at the event reconstruction level, an updated model for Galactic diffuse γ-ray emission, a refined procedure for source detection, and improved methods for associating LAT sources with potential counterparts at other wavelengths. The 3FGL catalog includes 3033 sources abovemore »« less
Cited by 512
DOI: 10.1088/0067-0049/218/2/23

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Fermi large area telescope second source catalog

Journal Article Nolan, P. L. ; Abdo, A. A. ; Ackermann, M. ; ... - Astrophysical Journal, Supplement Series

Here, we present the second catalog of high-energy γ-ray sources detected by the Large Area Telescope (LAT), the primary science instrument on the Fermi Gamma-ray Space Telescope (Fermi), derived from data taken during the first 24 months of the science phase of the mission, which began on 2008 August 4. Source detection is based on the average flux over the 24 month period. The second Fermi-LAT catalog (2FGL) includes source location regions, defined in terms of elliptical fits to the 95% confidence regions and spectral fits in terms of power-law, exponentially cutoff power-law, or log-normal forms. Also included are fluxmore »« less
Cited by 795
DOI: 10.1088/0067-0049/199/2/31

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FERMI LARGE AREA TELESCOPE FIRST SOURCE CATALOG

Journal Article Abdo, A. A. ; Ackermann, M. ; Ajello, M. ; ... - Astrophysical Journal, Supplement Series

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, definedmore »« less
DOI: 10.1088/0067-0049/188/2/405

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