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Title: Fermi Large Area Telescope third source catalog

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 above $$4\sigma $$ significance, with source location regions, spectral properties, and monthly light curves for each. Of these, 78 are flagged as potentially being due to imperfections in the model for Galactic diffuse emission. Twenty-five sources are modeled explicitly as spatially extended, and overall 238 sources are considered as identified based on angular extent or correlated variability (periodic or otherwise) observed at other wavelengths. For 1010 sources we have not found plausible counterparts at other wavelengths. More than 1100 of the identified or associated sources are active galaxies of the blazar class; several other classes of non-blazar active galaxies are also represented in the 3FGL. Pulsars represent the largest Galactic source class. As a result, from source counts of Galactic sources we estimate that the contribution of unresolved sources to the Galactic diffuse emission is ~3% at 1 GeV.
Authors:
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Publication Date:
Grant/Contract Number:
AC02-76SF00515
Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal. Supplement Series (Online)
Additional Journal Information:
Journal Name: The Astrophysical Journal. Supplement Series (Online); Journal Volume: 218; Journal Issue: 2; Journal ID: ISSN 1538-4365
Publisher:
American Astronomical Society/IOP
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; catalogs; gamma-rays: general
OSTI Identifier:
1355153

Acero, F., Ackermann, M., Ajello, M., Albert, A., Atwood, W. B., Axelsson, M., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Belfiore, A., Bellazzini, R., Bissaldi, E., Blandford, R. D., Bloom, E. D., Bogart, J. R., Bonino, R., Bottacini, E., Bregeon, J., Britto, R. J., Bruel, P., Buehler, R., Burnett, T. H., Buson, S., Caliandro, G. A., Cameron, R. A., Caputo, R., Caragiulo, M., Caraveo, P. A., Casandjian, J. M., Cavazzuti, E., Charles, E., Chaves, R. C. G., Chekhtman, A., Cheung, C. C., Chiang, J., Chiaro, G., Ciprini, S., Claus, R., Tanugi, J. Cohen-, Cominsky, L. R., Conrad, J., Cutini, S., D’Ammando, F., Angelis, A. de, DeKlotz, M., Palma, F. de, Desiante, R., Digel, S. W., Venere, L. Di, Drell, P. S., Dubois, R., Dumora, D., Favuzzi, C., Fegan, S. J., Ferrara, E. C., Finke, J., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., 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., Hadasch, D., Harding, A. K., Hays, E., Hewitt, J. W., Hill, A. B., Horan, D., Iafrate, G., Jogler, T., Jóhannesson, G., Johnson, R. P., Johnson, A. S., Johnson, T. J., Johnson, W. N., Kamae, T., Kataoka, J., Katsuta, J., Kuss, M., Mura, G. La, Landriu, D., Larsson, S., Latronico, L., Goumard, M. Lemoine-, Li, J., Li, L., Longo, F., Loparco, F., Lott, B., Lovellette, M. N., Lubrano, P., Madejski, G. M., Massaro, F., Mayer, M., Mazziotta, M. N., McEnery, J. E., Michelson, P. F., Mirabal, N., Mizuno, T., Moiseev, A. A., Mongelli, M., Monzani, M. E., Morselli, A., Moskalenko, I. V., Murgia, S., Nuss, E., Ohno, M., Ohsugi, T., Omodei, N., Orienti, M., Orlando, E., Ormes, J. F., Paneque, D., Panetta, J. H., Perkins, J. S., Rollins, M. Pesce-, Piron, F., Pivato, G., Porter, T. A., Racusin, J. L., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Reposeur, T., Rochester, L. S., Romani, R. W., Salvetti, D., Conde, M. Sánchez-, Parkinson, P. M. Saz, Schulz, A., Siskind, E. J., Smith, D. A., Spada, F., Spandre, G., Spinelli, P., Stephens, T. E., Strong, A. W., Suson, D. J., Takahashi, H., Takahashi, T., Tanaka, Y., Thayer, J. G., Thayer, J. B., Thompson, D. J., Tibaldo, L., Tibolla, O., Torres, D. F., Torresi, E., Tosti, G., Troja, E., Klaveren, B. Van, Vianello, G., Winer, B. L., Wood, K. S., Wood, M., and Zimmer, S.. Fermi Large Area Telescope third source catalog. United States: N. p., Web. doi:10.1088/0067-0049/218/2/23.
Acero, F., Ackermann, M., Ajello, M., Albert, A., Atwood, W. B., Axelsson, M., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Belfiore, A., Bellazzini, R., Bissaldi, E., Blandford, R. D., Bloom, E. D., Bogart, J. R., Bonino, R., Bottacini, E., Bregeon, J., Britto, R. J., Bruel, P., Buehler, R., Burnett, T. H., Buson, S., Caliandro, G. A., Cameron, R. A., Caputo, R., Caragiulo, M., Caraveo, P. A., Casandjian, J. M., Cavazzuti, E., Charles, E., Chaves, R. C. G., Chekhtman, A., Cheung, C. C., Chiang, J., Chiaro, G., Ciprini, S., Claus, R., Tanugi, J. Cohen-, Cominsky, L. R., Conrad, J., Cutini, S., D’Ammando, F., Angelis, A. de, DeKlotz, M., Palma, F. de, Desiante, R., Digel, S. W., Venere, L. Di, Drell, P. S., Dubois, R., Dumora, D., Favuzzi, C., Fegan, S. J., Ferrara, E. C., Finke, J., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., 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., Hadasch, D., Harding, A. K., Hays, E., Hewitt, J. W., Hill, A. B., Horan, D., Iafrate, G., Jogler, T., Jóhannesson, G., Johnson, R. P., Johnson, A. S., Johnson, T. J., Johnson, W. N., Kamae, T., Kataoka, J., Katsuta, J., Kuss, M., Mura, G. La, Landriu, D., Larsson, S., Latronico, L., Goumard, M. Lemoine-, Li, J., Li, L., Longo, F., Loparco, F., Lott, B., Lovellette, M. N., Lubrano, P., Madejski, G. M., Massaro, F., Mayer, M., Mazziotta, M. N., McEnery, J. E., Michelson, P. F., Mirabal, N., Mizuno, T., Moiseev, A. A., Mongelli, M., Monzani, M. E., Morselli, A., Moskalenko, I. V., Murgia, S., Nuss, E., Ohno, M., Ohsugi, T., Omodei, N., Orienti, M., Orlando, E., Ormes, J. F., Paneque, D., Panetta, J. H., Perkins, J. S., Rollins, M. Pesce-, Piron, F., Pivato, G., Porter, T. A., Racusin, J. L., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Reposeur, T., Rochester, L. S., Romani, R. W., Salvetti, D., Conde, M. Sánchez-, Parkinson, P. M. Saz, Schulz, A., Siskind, E. J., Smith, D. A., Spada, F., Spandre, G., Spinelli, P., Stephens, T. E., Strong, A. W., Suson, D. J., Takahashi, H., Takahashi, T., Tanaka, Y., Thayer, J. G., Thayer, J. B., Thompson, D. J., Tibaldo, L., Tibolla, O., Torres, D. F., Torresi, E., Tosti, G., Troja, E., Klaveren, B. Van, Vianello, G., Winer, B. L., Wood, K. S., Wood, M., & Zimmer, S.. Fermi Large Area Telescope third source catalog. United States. doi:10.1088/0067-0049/218/2/23.
Acero, F., Ackermann, M., Ajello, M., Albert, A., Atwood, W. B., Axelsson, M., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Belfiore, A., Bellazzini, R., Bissaldi, E., Blandford, R. D., Bloom, E. D., Bogart, J. R., Bonino, R., Bottacini, E., Bregeon, J., Britto, R. J., Bruel, P., Buehler, R., Burnett, T. H., Buson, S., Caliandro, G. A., Cameron, R. A., Caputo, R., Caragiulo, M., Caraveo, P. A., Casandjian, J. M., Cavazzuti, E., Charles, E., Chaves, R. C. G., Chekhtman, A., Cheung, C. C., Chiang, J., Chiaro, G., Ciprini, S., Claus, R., Tanugi, J. Cohen-, Cominsky, L. R., Conrad, J., Cutini, S., D’Ammando, F., Angelis, A. de, DeKlotz, M., Palma, F. de, Desiante, R., Digel, S. W., Venere, L. Di, Drell, P. S., Dubois, R., Dumora, D., Favuzzi, C., Fegan, S. J., Ferrara, E. C., Finke, J., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., 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., Hadasch, D., Harding, A. K., Hays, E., Hewitt, J. W., Hill, A. B., Horan, D., Iafrate, G., Jogler, T., Jóhannesson, G., Johnson, R. P., Johnson, A. S., Johnson, T. J., Johnson, W. N., Kamae, T., Kataoka, J., Katsuta, J., Kuss, M., Mura, G. La, Landriu, D., Larsson, S., Latronico, L., Goumard, M. Lemoine-, Li, J., Li, L., Longo, F., Loparco, F., Lott, B., Lovellette, M. N., Lubrano, P., Madejski, G. M., Massaro, F., Mayer, M., Mazziotta, M. N., McEnery, J. E., Michelson, P. F., Mirabal, N., Mizuno, T., Moiseev, A. A., Mongelli, M., Monzani, M. E., Morselli, A., Moskalenko, I. V., Murgia, S., Nuss, E., Ohno, M., Ohsugi, T., Omodei, N., Orienti, M., Orlando, E., Ormes, J. F., Paneque, D., Panetta, J. H., Perkins, J. S., Rollins, M. Pesce-, Piron, F., Pivato, G., Porter, T. A., Racusin, J. L., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Reposeur, T., Rochester, L. S., Romani, R. W., Salvetti, D., Conde, M. Sánchez-, Parkinson, P. M. Saz, Schulz, A., Siskind, E. J., Smith, D. A., Spada, F., Spandre, G., Spinelli, P., Stephens, T. E., Strong, A. W., Suson, D. J., Takahashi, H., Takahashi, T., Tanaka, Y., Thayer, J. G., Thayer, J. B., Thompson, D. J., Tibaldo, L., Tibolla, O., Torres, D. F., Torresi, E., Tosti, G., Troja, E., Klaveren, B. Van, Vianello, G., Winer, B. L., Wood, K. S., Wood, M., and Zimmer, S.. 2015. "Fermi Large Area Telescope third source catalog". United States. doi:10.1088/0067-0049/218/2/23. https://www.osti.gov/servlets/purl/1355153.
@article{osti_1355153,
title = {Fermi Large Area Telescope third source catalog},
author = {Acero, F. and Ackermann, M. and Ajello, M. and Albert, A. and Atwood, W. B. and Axelsson, M. and Baldini, L. and Ballet, J. and Barbiellini, G. and Bastieri, D. and Belfiore, A. and Bellazzini, R. and Bissaldi, E. and Blandford, R. D. and Bloom, E. D. and Bogart, J. R. and Bonino, R. and Bottacini, E. and Bregeon, J. and Britto, R. J. and Bruel, P. and Buehler, R. and Burnett, T. H. and Buson, S. and Caliandro, G. A. and Cameron, R. A. and Caputo, R. and Caragiulo, M. and Caraveo, P. A. and Casandjian, J. M. and Cavazzuti, E. and Charles, E. and Chaves, R. C. G. and Chekhtman, A. and Cheung, C. C. and Chiang, J. and Chiaro, G. and Ciprini, S. and Claus, R. and Tanugi, J. Cohen- and Cominsky, L. R. and Conrad, J. and Cutini, S. and D’Ammando, F. and Angelis, A. de and DeKlotz, M. and Palma, F. de and Desiante, R. and Digel, S. W. and Venere, L. Di and Drell, P. S. and Dubois, R. and Dumora, D. and Favuzzi, C. and Fegan, S. J. and Ferrara, E. C. and Finke, J. and Franckowiak, A. and Fukazawa, Y. and Funk, S. and Fusco, P. and Gargano, F. and Gasparrini, D. 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 Hadasch, D. and Harding, A. K. and Hays, E. and Hewitt, J. W. and Hill, A. B. and Horan, D. and Iafrate, G. and Jogler, T. and Jóhannesson, G. and Johnson, R. P. and Johnson, A. S. and Johnson, T. J. and Johnson, W. N. and Kamae, T. and Kataoka, J. and Katsuta, J. and Kuss, M. and Mura, G. La and Landriu, D. and Larsson, S. and Latronico, L. and Goumard, M. Lemoine- and Li, J. and Li, L. and Longo, F. and Loparco, F. and Lott, B. and Lovellette, M. N. and Lubrano, P. and Madejski, G. M. and Massaro, F. and Mayer, M. and Mazziotta, M. N. and McEnery, J. E. and Michelson, P. F. and Mirabal, N. and Mizuno, T. and Moiseev, A. A. and Mongelli, M. and Monzani, M. E. and Morselli, A. and Moskalenko, I. V. and Murgia, S. and Nuss, E. and Ohno, M. and Ohsugi, T. and Omodei, N. and Orienti, M. and Orlando, E. and Ormes, J. F. and Paneque, D. and Panetta, J. H. and Perkins, J. S. and Rollins, M. Pesce- and Piron, F. and Pivato, G. and Porter, T. A. and Racusin, J. L. and Rando, R. and Razzano, M. and Razzaque, S. and Reimer, A. and Reimer, O. and Reposeur, T. and Rochester, L. S. and Romani, R. W. and Salvetti, D. and Conde, M. Sánchez- and Parkinson, P. M. Saz and Schulz, A. and Siskind, E. J. and Smith, D. A. and Spada, F. and Spandre, G. and Spinelli, P. and Stephens, T. E. and Strong, A. W. and Suson, D. J. and Takahashi, H. and Takahashi, T. and Tanaka, Y. and Thayer, J. G. and Thayer, J. B. and Thompson, D. J. and Tibaldo, L. and Tibolla, O. and Torres, D. F. and Torresi, E. and Tosti, G. and Troja, E. and Klaveren, B. Van and Vianello, G. and Winer, B. L. and Wood, K. S. and Wood, M. and Zimmer, S.},
abstractNote = {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 above $4\sigma $ significance, with source location regions, spectral properties, and monthly light curves for each. Of these, 78 are flagged as potentially being due to imperfections in the model for Galactic diffuse emission. Twenty-five sources are modeled explicitly as spatially extended, and overall 238 sources are considered as identified based on angular extent or correlated variability (periodic or otherwise) observed at other wavelengths. For 1010 sources we have not found plausible counterparts at other wavelengths. More than 1100 of the identified or associated sources are active galaxies of the blazar class; several other classes of non-blazar active galaxies are also represented in the 3FGL. Pulsars represent the largest Galactic source class. As a result, from source counts of Galactic sources we estimate that the contribution of unresolved sources to the Galactic diffuse emission is ~3% at 1 GeV.},
doi = {10.1088/0067-0049/218/2/23},
journal = {The Astrophysical Journal. Supplement Series (Online)},
number = 2,
volume = 218,
place = {United States},
year = {2015},
month = {6}
}