A statistical approach to recognizing source classes for unassociated sources in the first fermi-LAT catalog
The Fermi Large Area Telescope (LAT) First Source Catalog (1FGL) provided spatial, spectral, and temporal properties for a large number of γ -ray sources using a uniform analysis method. After correlating with the mostcomplete catalogs of source types known to emit γ rays, 630 of these sources are “...
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| Hauptverfasser: | , |
|---|---|
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
July 2012
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| In: |
The astrophysical journal
Year: 2012, Jahrgang: 753 |
| ISSN: | 1538-4357 |
| DOI: | 10.1088/0004-637X/753/1/83 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1088/0004-637X/753/1/83 Verlag, Volltext: http://adsabs.harvard.edu/abs/2012ApJ...753...83A 
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| Verfasserangaben: | Markus Ackermann, Marco Ajello, A. Allafort, Ermete Antolini, L. Baldini, Jean Ballet, Guido Barbiellini, Denis Bastieri, Ronaldo Bellazzini, Bijan Berenji, Roger D. Blandford, Elliott D. Bloom, Emanuele Bonamente, Anders Borgland, audrey bouvier, Terri J. Brandt, Johan Bregeon, Monica Brigida, Philippe Bruel, Rolf Buehler, Toby Burnett, Sara Buson, Giuseppe Andrea Caliandro, Robert P. Cameron, Patrizia A. Caraveo, J. M. Casandjian, Elisabetta Cavazzuti, C. Cecchi, Ömer Çelik, E. J. Charles, Alexandre Chekhtman, Alexander W. Chen, Chi Chiu Cheung, James Chiang, Stefano Ciprini, Ron Claus, Johann Cohen-Tanugi, Jan O. Conrad, Sara Cutini, Alessandro De Angelis, Megan E. DeCesar, Andrea De Luca, Francesco De Palma, Charles D. Dermer, Eduardo do Couto e Silva, Persis S. Drell, Alex Drlica-Wagner, Richard Dubois, Teruaki Enoto, Cecilia Favuzzi, Sarah Fegan, Elizabeth C. Ferrara, Warren B. Focke, Pascal Fortin, Yasushi Fukazawa, Seb Funk, Piergiorgio Fusco, Fabio Gargano, Dario Gasparrini, Neil A. Gehrels, Stefano Germani, Nicola Giglietto, Francesco Giordano, Marcello Giroletti, Tom Glanzman, Gary Godfrey, Isabelle A. Grenier, M. A. Grondin, James E. Grove, Lucas Guillemot, Sylvain Guiriec, Maiken Gustafsson, Daniela Hadasch, Y. Hanabata, Alice K. Harding, Masaaki Hayashida, Eva Hays, Stephen E. Healey, Ann B. Hill, Deirdre Horan, Xian Hou, Gudlaugur Jóhannesson, Allan S. Johnson, Tyrel J. Johnson, T. Kamae, Hideaki Katagiri, Jun Kataoka, M. Munro Kerr, Jürgen Knödlseder, Michael Kuss, Joshua Lande, Luca Latronico, S. Lee, M. Lemoine-Goumard, Francesco Longo, Francesco Loparco, Benoit Lott, Michael N. Lovellette, Pasquale Lubrano, Grzegorz Madejski, M. N. Mazziotta, Julie Mcenery, J. Méhault, P. F. Michelson, Roberto P. Mignani, Warit Mitthumsiri, Tsunefumi Mizuno, C. Monte, Maria Elena Monzani, Aldo Morselli, Igor V. Moskalenko, S. Murgia, Takuya Nakamori, M. Naumann-Godó, P. L. Nolan, Jay P. Norris, Eric Nuss, Takashi Ohsugi, Aiko Okumura, Nicola Omodei, E. Orlando, Jonathan F. Ormes, Masanobu Ozaki, David Paneque, J. H. Panetta, Damien Parent, V. Pelassa, Melissa Pesce-Rollins, M. Pierbattista, Frédéric Piron, G. Pivato, Troy A. Porter, S. Rando Rainò, Riccardo Rando, Paul S. Ray, Massimiliano Razzano, Anita Reimer, Olaf Reimer, T. Reposeur, Roger W. Romani, Hartmut F.-W. Sadrozinski, David Salvetti, P. M. Saz Parkinson, Thomas Schalk, Carmelo Sgrò, Michael S. Shaw, Eric J. Siskind, P. D. Smith, Gloria Spandre, Paolo Spinelli, Daniel J. Suson, Hiromitsu Takahashi, Takaaki Tanaka, J. G. Thayer, Jana B. Thayer, David W. J. Thompson, Luigi Tibaldo, Omar Tibolla, Diego F. Torres, Gino Tosti, andrea tramacere, Eleonora Troja, Timothy Usher, Justin Vandenbroucke, Vlasios Vasileiou, Giacomo Vianello, Natalie Povilonis de Vilchez, Vito Vitale, A. P. Waite, Evan Wallace, Pengjun Wang, Barry Winer, Michael T. Wolff, David L. Wood, Kent S. Wood, Zhongqin Yang, Stephan Zimmer |
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| 245 | 1 | 2 | |a A statistical approach to recognizing source classes for unassociated sources in the first fermi-LAT catalog |c Markus Ackermann, Marco Ajello, A. Allafort, Ermete Antolini, L. Baldini, Jean Ballet, Guido Barbiellini, Denis Bastieri, Ronaldo Bellazzini, Bijan Berenji, Roger D. Blandford, Elliott D. Bloom, Emanuele Bonamente, Anders Borgland, audrey bouvier, Terri J. Brandt, Johan Bregeon, Monica Brigida, Philippe Bruel, Rolf Buehler, Toby Burnett, Sara Buson, Giuseppe Andrea Caliandro, Robert P. Cameron, Patrizia A. Caraveo, J. M. Casandjian, Elisabetta Cavazzuti, C. Cecchi, Ömer Çelik, E. J. Charles, Alexandre Chekhtman, Alexander W. Chen, Chi Chiu Cheung, James Chiang, Stefano Ciprini, Ron Claus, Johann Cohen-Tanugi, Jan O. Conrad, Sara Cutini, Alessandro De Angelis, Megan E. DeCesar, Andrea De Luca, Francesco De Palma, Charles D. Dermer, Eduardo do Couto e Silva, Persis S. Drell, Alex Drlica-Wagner, Richard Dubois, Teruaki Enoto, Cecilia Favuzzi, Sarah Fegan, Elizabeth C. Ferrara, Warren B. Focke, Pascal Fortin, Yasushi Fukazawa, Seb Funk, Piergiorgio Fusco, Fabio Gargano, Dario Gasparrini, Neil A. Gehrels, Stefano Germani, Nicola Giglietto, Francesco Giordano, Marcello Giroletti, Tom Glanzman, Gary Godfrey, Isabelle A. Grenier, M. A. Grondin, James E. Grove, Lucas Guillemot, Sylvain Guiriec, Maiken Gustafsson, Daniela Hadasch, Y. Hanabata, Alice K. Harding, Masaaki Hayashida, Eva Hays, Stephen E. Healey, Ann B. Hill, Deirdre Horan, Xian Hou, Gudlaugur Jóhannesson, Allan S. Johnson, Tyrel J. Johnson, T. Kamae, Hideaki Katagiri, Jun Kataoka, M. Munro Kerr, Jürgen Knödlseder, Michael Kuss, Joshua Lande, Luca Latronico, S. Lee, M. Lemoine-Goumard, Francesco Longo, Francesco Loparco, Benoit Lott, Michael N. Lovellette, Pasquale Lubrano, Grzegorz Madejski, M. N. Mazziotta, Julie Mcenery, J. Méhault, P. F. Michelson, Roberto P. Mignani, Warit Mitthumsiri, Tsunefumi Mizuno, C. Monte, Maria Elena Monzani, Aldo Morselli, Igor V. Moskalenko, S. Murgia, Takuya Nakamori, M. Naumann-Godó, P. L. Nolan, Jay P. Norris, Eric Nuss, Takashi Ohsugi, Aiko Okumura, Nicola Omodei, E. Orlando, Jonathan F. Ormes, Masanobu Ozaki, David Paneque, J. H. Panetta, Damien Parent, V. Pelassa, Melissa Pesce-Rollins, M. Pierbattista, Frédéric Piron, G. Pivato, Troy A. Porter, S. Rando Rainò, Riccardo Rando, Paul S. Ray, Massimiliano Razzano, Anita Reimer, Olaf Reimer, T. Reposeur, Roger W. Romani, Hartmut F.-W. Sadrozinski, David Salvetti, P. M. Saz Parkinson, Thomas Schalk, Carmelo Sgrò, Michael S. Shaw, Eric J. Siskind, P. D. Smith, Gloria Spandre, Paolo Spinelli, Daniel J. Suson, Hiromitsu Takahashi, Takaaki Tanaka, J. G. Thayer, Jana B. Thayer, David W. J. Thompson, Luigi Tibaldo, Omar Tibolla, Diego F. Torres, Gino Tosti, andrea tramacere, Eleonora Troja, Timothy Usher, Justin Vandenbroucke, Vlasios Vasileiou, Giacomo Vianello, Natalie Povilonis de Vilchez, Vito Vitale, A. P. Waite, Evan Wallace, Pengjun Wang, Barry Winer, Michael T. Wolff, David L. Wood, Kent S. Wood, Zhongqin Yang, Stephan Zimmer |
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| 520 | |a The Fermi Large Area Telescope (LAT) First Source Catalog (1FGL) provided spatial, spectral, and temporal properties for a large number of γ -ray sources using a uniform analysis method. After correlating with the mostcomplete catalogs of source types known to emit γ rays, 630 of these sources are “unassociated” (i.e., have no obvious counterparts at other wavelengths). Here, we employ two statistical analyses of the primary γ -ray characteristics for these unassociated sources in an effort to correlate their γ -ray properties with the active galactic nucleus (AGN) and pulsar populations in 1FGL. Based on the correlation results, we classify 221 AGN-like and 134 pulsar-like sources in the 1FGL unassociated sources. The results of these source “classifications” appear to match the expected source distributions, especially at high Galactic latitudes. While useful for planning future multiwavelength follow-up observations, these analyses use limited inputs, and their predictions should not be considered equivalent to “probable source classes” for these sources. We discuss multiwavelength results and catalog cross-correlations to date, and provide new source associations for 229 Fermi-LAT sources that had no association listed in the 1FGL catalog. By validating the source classifications against these new associations, we find that the new association matches the predicted source class in ∼80% of the sources. | ||
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