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The radio/gamma-ray connection in active galactic nuclei in the era of the fermi large area telescope

We present a detailed statistical analysis of the correlation between radio and gamma-ray emission of the active galactic nuclei (AGNs) detected by Fermi during its first year of operation, with the largest data sets ever used for this purpose. We use both archival interferometric 8.4 GHz data (from... Full description

Journal Title: The Astrophysical Journal 2011, Vol.741(1), p.30 (20pp)
Main Author: Ackermann, M.
Other Authors: Ajello, M. , Allafort, A. , Angelakis, E. , Axelsson, M. , Baldini, L. , Ballet, J. , Barbiellini, G. , Bastieri, D. , Bellazzini, R. , Berenji, B. , Blandford, R. D. , Bloom, E. D. , Bonamente, E. , Borgland, A. W. , Bouvier, A. , Bregeon, J. , Brez, A. , Brigida, M. , Bruel, P. , Buehler, R. , Buson, S. , Caliandro, G. A. , Cameron, R. a. , Cannon, A. , Caraveo, P. A. , Casandjian, J. M. , Cavazzuti, E. , Cecchi, C. , Charles, E. , Chekhtman, A. , Cheung, C. C. , Ciprini, S. , Claus, R. , Cohen-Tanugi, J. , Cutini, S. , De Palma, F. , Dermer, C. d. , Do Couto E Silva, E. , Drell, P. S. , Dubois, R. , Dumora, D. , Escande, L. , Favuzzi, C. , Fegan, S. j. , Focke, W. B. , Fortin, P. , Frailis, M. , Fuhrmann, L. , Fukazawa, Y. , Fusco, P. , Gargano, F. , Gasparrini, D. , Gehrels, N. , Giglietto, N. , Giommi, P. , Giordano, F. , Giroletti, M. , Glanzman, T. , Godfrey, G. , Grandi, P. , Grenier, I. A. , Guiriec, S. , Hadasch, D. , Hayashida, M. , Hays, E. , Healey, S. E. , Jóhannesson, G. , Johnson, A. s. , Kamae, T. , Katagiri, H. , Kataoka, J. , Knödlseder, J. , Kuss, M. , Lande, J. , Lee, S.-H. , Longo, F. , Loparco, F. , Lott, B. , Lovellette, M. N. , Lubrano, P. , Makeev, A. , Max-Moerbeck, W. , Mazziotta, M. N. , Mcenery, J. E. , Mehault, J. , Michelson, P. F. , Mizuno, T. , Monte, C. , Monzani, M. E. , Morselli, A. , Moskalenko, I. V. , Murgia, S. , Naumann-Godo, M. , Nishino, S. , Nolan, P. L. , Norris, J. p. , Nuss, E. , Ohsugi, T. , Okumura, A. , Omodei, N. , Orlando, E. , Ormes, J. F. , Ozaki, M. , Paneque, D. , Pavlidou, V. , Pelassa, V. , Pepe, M. , Pesce-Rollins, M. , Pierbattista, M. , Piron, F. , Porter, T. a. , Rainò, S. , Razzano, M. , Readhead, A. , Reimer, A. , Reimer, O. , Richards, J. L. , Romani, R. W. , Sadrozinski, H. f.-W. , Scargle, J. d. , Sgrò, C. , Siskind, E. j. , Smith, P. D. , Spandre, G. , Spinelli, P. , Strickman, M. s. , Suson, D. J. , Takahashi, H. , Tanaka, T. , Taylor, G. B. , Thayer, J. G. , Thayer, J. B. , Thompson, D. j. , Torres, D. F. , Tosti, G. , Tramacere, A. , Troja, E. , Vandenbroucke, J. , Vianello, G. , Vitale, V. , Waite, A. p. , Wang, P. , Winer, B. l. , Wood, K. S. , Yang, Z. , Ziegler, M.
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0004-637X ; E-ISSN: 1538-4357 ; DOI: 10.1088/0004-637X/741/1/30
Link: http://dx.doi.org/10.1088/0004-637X/741/1/30
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title: The radio/gamma-ray connection in active galactic nuclei in the era of the fermi large area telescope
format: Article
creator:
  • Ackermann, M.
  • Ajello, M.
  • Allafort, A.
  • Angelakis, E.
  • Axelsson, M.
  • Baldini, L.
  • Ballet, J.
  • Barbiellini, G.
  • Bastieri, D.
  • Bellazzini, R.
  • Berenji, B.
  • Blandford, R. D.
  • Bloom, E. D.
  • Bonamente, E.
  • Borgland, A. W.
  • Bouvier, A.
  • Bregeon, J.
  • Brez, A.
  • Brigida, M.
  • Bruel, P.
  • Buehler, R.
  • Buson, S.
  • Caliandro, G. A.
  • Cameron, R. a.
  • Cannon, A.
  • Caraveo, P. A.
  • Casandjian, J. M.
  • Cavazzuti, E.
  • Cecchi, C.
  • Charles, E.
  • Chekhtman, A.
  • Cheung, C. C.
  • Ciprini, S.
  • Claus, R.
  • Cohen-Tanugi, J.
  • Cutini, S.
  • De Palma, F.
  • Dermer, C. d.
  • Do Couto E Silva, E.
  • Drell, P. S.
  • Dubois, R.
  • Dumora, D.
  • Escande, L.
  • Favuzzi, C.
  • Fegan, S. j.
  • Focke, W. B.
  • Fortin, P.
  • Frailis, M.
  • Fuhrmann, L.
  • Fukazawa, Y.
  • Fusco, P.
  • Gargano, F.
  • Gasparrini, D.
  • Gehrels, N.
  • Giglietto, N.
  • Giommi, P.
  • Giordano, F.
  • Giroletti, M.
  • Glanzman, T.
  • Godfrey, G.
  • Grandi, P.
  • Grenier, I. A.
  • Guiriec, S.
  • Hadasch, D.
  • Hayashida, M.
  • Hays, E.
  • Healey, S. E.
  • Jóhannesson, G.
  • Johnson, A. s.
  • Kamae, T.
  • Katagiri, H.
  • Kataoka, J.
  • Knödlseder, J.
  • Kuss, M.
  • Lande, J.
  • Lee, S.-H.
  • Longo, F.
  • Loparco, F.
  • Lott, B.
  • Lovellette, M. N.
  • Lubrano, P.
  • Makeev, A.
  • Max-Moerbeck, W.
  • Mazziotta, M. N.
  • Mcenery, J. E.
  • Mehault, J.
  • Michelson, P. F.
  • Mizuno, T.
  • Monte, C.
  • Monzani, M. E.
  • Morselli, A.
  • Moskalenko, I. V.
  • Murgia, S.
  • Naumann-Godo, M.
  • Nishino, S.
  • Nolan, P. L.
  • Norris, J. p.
  • Nuss, E.
  • Ohsugi, T.
  • Okumura, A.
  • Omodei, N.
  • Orlando, E.
  • Ormes, J. F.
  • Ozaki, M.
  • Paneque, D.
  • Pavlidou, V.
  • Pelassa, V.
  • Pepe, M.
  • Pesce-Rollins, M.
  • Pierbattista, M.
  • Piron, F.
  • Porter, T. a.
  • Rainò, S.
  • Razzano, M.
  • Readhead, A.
  • Reimer, A.
  • Reimer, O.
  • Richards, J. L.
  • Romani, R. W.
  • Sadrozinski, H. f.-W.
  • Scargle, J. d.
  • Sgrò, C.
  • Siskind, E. j.
  • Smith, P. D.
  • Spandre, G.
  • Spinelli, P.
  • Strickman, M. s.
  • Suson, D. J.
  • Takahashi, H.
  • Tanaka, T.
  • Taylor, G. B.
  • Thayer, J. G.
  • Thayer, J. B.
  • Thompson, D. j.
  • Torres, D. F.
  • Tosti, G.
  • Tramacere, A.
  • Troja, E.
  • Vandenbroucke, J.
  • Vianello, G.
  • Vitale, V.
  • Waite, A. p.
  • Wang, P.
  • Winer, B. l.
  • Wood, K. S.
  • Yang, Z.
  • Ziegler, M.
subjects:
  • Astrophysics - Cosmology And Nongalactic Astrophysics
  • Astrophysics - High Energy Astrophysical Phenomena
ispartof: The Astrophysical Journal, 2011, Vol.741(1), p.30 (20pp)
description: We present a detailed statistical analysis of the correlation between radio and gamma-ray emission of the active galactic nuclei (AGNs) detected by Fermi during its first year of operation, with the largest data sets ever used for this purpose. We use both archival interferometric 8.4 GHz data (from the Very Large Array and ATCA, for the full sample of 599 sources) and concurrent single-dish 15 GHz measurements from the Owens Valley Radio Observatory (OVRO, for a sub sample of 199 objects). Our unprecedentedly large sample permits us to assess with high accuracy the statistical significance of the correlation, using a surrogate data method designed to simultaneously account for common-distance bias and the effect of a limited dynamical range in the observed quantities. We find that the statistical significance of a positive correlation between the centimeter radio and the broadband ( E > 100 MeV) gamma-ray energy flux is very high for the whole AGN sample, with a probability of
language: eng
source:
identifier: ISSN: 0004-637X ; E-ISSN: 1538-4357 ; DOI: 10.1088/0004-637X/741/1/30
fulltext: fulltext
issn:
  • 0004-637X
  • 1538-4357
  • 0004637X
  • 15384357
url: Link


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titleThe radio/gamma-ray connection in active galactic nuclei in the era of the fermi large area telescope
creatorAckermann, M. ; Ajello, M. ; Allafort, A. ; Angelakis, E. ; Axelsson, M. ; Baldini, L. ; Ballet, J. ; Barbiellini, G. ; Bastieri, D. ; Bellazzini, R. ; Berenji, B. ; Blandford, R. D. ; Bloom, E. D. ; Bonamente, E. ; Borgland, A. W. ; Bouvier, A. ; Bregeon, J. ; Brez, A. ; Brigida, M. ; Bruel, P. ; Buehler, R. ; Buson, S. ; Caliandro, G. A. ; Cameron, R. a. ; Cannon, A. ; Caraveo, P. A. ; Casandjian, J. M. ; Cavazzuti, E. ; Cecchi, C. ; Charles, E. ; Chekhtman, A. ; Cheung, C. C. ; Ciprini, S. ; Claus, R. ; Cohen-Tanugi, J. ; Cutini, S. ; De Palma, F. ; Dermer, C. d. ; Do Couto E Silva, E. ; Drell, P. S. ; Dubois, R. ; Dumora, D. ; Escande, L. ; Favuzzi, C. ; Fegan, S. j. ; Focke, W. B. ; Fortin, P. ; Frailis, M. ; Fuhrmann, L. ; Fukazawa, Y. ; Fusco, P. ; Gargano, F. ; Gasparrini, D. ; Gehrels, N. ; Giglietto, N. ; Giommi, P. ; Giordano, F. ; Giroletti, M. ; Glanzman, T. ; Godfrey, G. ; Grandi, P. ; Grenier, I. A. ; Guiriec, S. ; Hadasch, D. ; Hayashida, M. ; Hays, E. ; Healey, S. E. ; Jóhannesson, G. ; Johnson, A. s. ; Kamae, T. ; Katagiri, H. ; Kataoka, J. ; Knödlseder, J. ; Kuss, M. ; Lande, J. ; Lee, S.-H. ; Longo, F. ; Loparco, F. ; Lott, B. ; Lovellette, M. N. ; Lubrano, P. ; Makeev, A. ; Max-Moerbeck, W. ; Mazziotta, M. N. ; Mcenery, J. E. ; Mehault, J. ; Michelson, P. F. ; Mizuno, T. ; Monte, C. ; Monzani, M. E. ; Morselli, A. ; Moskalenko, I. V. ; Murgia, S. ; Naumann-Godo, M. ; Nishino, S. ; Nolan, P. L. ; Norris, J. p. ; Nuss, E. ; Ohsugi, T. ; Okumura, A. ; Omodei, N. ; Orlando, E. ; Ormes, J. F. ; Ozaki, M. ; Paneque, D. ; Pavlidou, V. ; Pelassa, V. ; Pepe, M. ; Pesce-Rollins, M. ; Pierbattista, M. ; Piron, F. ; Porter, T. a. ; Rainò, S. ; Razzano, M. ; Readhead, A. ; Reimer, A. ; Reimer, O. ; Richards, J. L. ; Romani, R. W. ; Sadrozinski, H. f.-W. ; Scargle, J. d. ; Sgrò, C. ; Siskind, E. j. ; Smith, P. D. ; Spandre, G. ; Spinelli, P. ; Strickman, M. s. ; Suson, D. J. ; Takahashi, H. ; Tanaka, T. ; Taylor, G. B. ; Thayer, J. G. ; Thayer, J. B. ; Thompson, D. j. ; Torres, D. F. ; Tosti, G. ; Tramacere, A. ; Troja, E. ; Vandenbroucke, J. ; Vianello, G. ; Vitale, V. ; Waite, A. p. ; Wang, P. ; Winer, B. l. ; Wood, K. S. ; Yang, Z. ; Ziegler, M.
ispartofThe Astrophysical Journal, 2011, Vol.741(1), p.30 (20pp)
identifier
descriptionWe present a detailed statistical analysis of the correlation between radio and gamma-ray emission of the active galactic nuclei (AGNs) detected by Fermi during its first year of operation, with the largest data sets ever used for this purpose. We use both archival interferometric 8.4 GHz data (from the Very Large Array and ATCA, for the full sample of 599 sources) and concurrent single-dish 15 GHz measurements from the Owens Valley Radio Observatory (OVRO, for a sub sample of 199 objects). Our unprecedentedly large sample permits us to assess with high accuracy the statistical significance of the correlation, using a surrogate data method designed to simultaneously account for common-distance bias and the effect of a limited dynamical range in the observed quantities. We find that the statistical significance of a positive correlation between the centimeter radio and the broadband ( E > 100 MeV) gamma-ray energy flux is very high for the whole AGN sample, with a probability of <10 7 for the correlation appearing by chance. Using the OVRO data, we find that concurrent data improve the significance of the correlation from 1.6 × 10 6 to 9.0 × 10 8 . Our large sample size allows us to study the dependence of correlation strength and significance on specific source types and gamma-ray energy band. We find that the correlation is very significant (chance probability < 10 7 ) for both flat spectrum radio quasars and BL Lac objects separately; a dependence of the correlation strength on the considered gamma-ray energy band is also present, but additional data will be necessary to constrain its significance.
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source
subjectAstrophysics - Cosmology And Nongalactic Astrophysics ; Astrophysics - High Energy Astrophysical Phenomena;
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0Ackermann, M.
1Ajello, M.
2Allafort, A.
3Angelakis, E.
4Axelsson, M.
5Baldini, L.
6Ballet, J.
7Barbiellini, G.
8Bastieri, D.
9Bellazzini, R.
10Berenji, B.
11Blandford, R. D.
12Bloom, E. D.
13Bonamente, E.
14Borgland, A. W.
15Bouvier, A.
16Bregeon, J.
17Brez, A.
18Brigida, M.
19Bruel, P.
20Buehler, R.
21Buson, S.
22Caliandro, G. A.
23Cameron, R. a.
24Cannon, A.
25Caraveo, P. A.
26Casandjian, J. M.
27Cavazzuti, E.
28Cecchi, C.
29Charles, E.
30Chekhtman, A.
31Cheung, C. C.
32Ciprini, S.
33Claus, R.
34Cohen-Tanugi, J.
35Cutini, S.
36De Palma, F.
37Dermer, C. d.
38Do Couto E Silva, E.
39Drell, P. S.
40Dubois, R.
41Dumora, D.
42Escande, L.
43Favuzzi, C.
44Fegan, S. j.
45Focke, W. B.
46Fortin, P.
47Frailis, M.
48Fuhrmann, L.
49Fukazawa, Y.
50Fusco, P.
51Gargano, F.
52Gasparrini, D.
53Gehrels, N.
54Giglietto, N.
55Giommi, P.
56Giordano, F.
57Giroletti, M.
58Glanzman, T.
59Godfrey, G.
60Grandi, P.
61Grenier, I. A.
62Guiriec, S.
63Hadasch, D.
64Hayashida, M.
65Hays, E.
66Healey, S. E.
67Jóhannesson, G.
68Johnson, A. s.
69Kamae, T.
70Katagiri, H.
71Kataoka, J.
72Knödlseder, J.
73Kuss, M.
74Lande, J.
75Lee, S.-H.
76Longo, F.
77Loparco, F.
78Lott, B.
79Lovellette, M. N.
80Lubrano, P.
81Makeev, A.
82Max-Moerbeck, W.
83Mazziotta, M. N.
84Mcenery, J. E.
85Mehault, J.
86Michelson, P. F.
87Mizuno, T.
88Monte, C.
89Monzani, M. E.
90Morselli, A.
91Moskalenko, I. V.
92Murgia, S.
93Naumann-Godo, M.
94Nishino, S.
95Nolan, P. L.
96Norris, J. p.
97Nuss, E.
98Ohsugi, T.
99Okumura, A.
100...
title
0THE RADIO/GAMMA-RAY CONNECTION IN ACTIVE GALACTIC NUCLEI IN THE ERA OF THE FERMI LARGE AREA TELESCOPE
1The Radio/Gamma-Ray Connection in Active Galactic Nuclei in the Era of the Fermi Large Area Telescope
descriptionWe present a detailed statistical analysis of the correlation between radio and gamma-ray emission of the active galactic nuclei (AGNs) detected by Fermi during its first year of operation, with the largest data sets ever used for this purpose. We use both archival interferometric 8.4 GHz data (from the Very Large Array and ATCA, for the full sample of 599 sources) and concurrent single-dish 15 GHz measurements from the Owens Valley Radio Observatory (OVRO, for a sub sample of 199 objects). Our unprecedentedly large sample permits us to assess with high accuracy the statistical significance of the correlation, using a surrogate data method designed to simultaneously account for common-distance bias and the effect of a limited dynamical range in the observed quantities. We find that the statistical significance of a positive correlation between the centimeter radio and the broadband ( E > 100 MeV) gamma-ray energy flux is very high for the whole AGN sample, with a probability of <10 7 for the correlation appearing by chance. Using the OVRO data, we find that concurrent data improve the significance of the correlation from 1.6 × 10 6 to 9.0 × 10 8 . Our large sample size allows us to study the dependence of correlation strength and significance on specific source types and gamma-ray energy band. We find that the correlation is very significant (chance probability < 10 7 ) for both flat spectrum radio quasars and BL Lac objects separately; a dependence of the correlation strength on the considered gamma-ray energy band is also present, but additional data will be necessary to constrain its significance.
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titleThe radio/gamma-ray connection in active galactic nuclei in the era of the fermi large area telescope
creationdate20111101
authorAckermann, M. ; Ajello, M. ; Allafort, A. ; Angelakis, E. ; Axelsson, M. ; Baldini, L. ; Ballet, J. ; Barbiellini, G. ; Bastieri, D. ; Bellazzini, R. ; Berenji, B. ; Blandford, R. D. ; Bloom, E. D. ; Bonamente, E. ; Borgland, A. W. ; Bouvier, A. ; Bregeon, J. ; Brez, A. ; Brigida, M. ; Bruel, P. ; Buehler, R. ; Buson, S. ; Caliandro, G. A. ; Cameron, R. a. ; Cannon, A. ; Caraveo, P. A. ; Casandjian, J. M. ; Cavazzuti, E. ; Cecchi, C. ; Charles, E. ; Chekhtman, A. ; Cheung, C. C. ; Ciprini, S. ; Claus, R. ; Cohen-Tanugi, J. ; Cutini, S. ; De Palma, F. ; Dermer, C. d. ; Do Couto E Silva, E. ; Drell, P. S. ; Dubois, R. ; Dumora, D. ; Escande, L. ; Favuzzi, C. ; Fegan, S. j. ; Focke, W. B. ; Fortin, P. ; Frailis, M. ; Fuhrmann, L. ; Fukazawa, Y. ; Fusco, P. ; Gargano, F. ; Gasparrini, D. ; Gehrels, N. ; Giglietto, N. ; Giommi, P. ; Giordano, F. ; Giroletti, M. ; Glanzman, T. ; Godfrey, G. ; Grandi, P. ; Grenier, I. A. ; Guiriec, S. ; Hadasch, D. ; Hayashida, M. ; Hays, E. ; Healey, S. E. ; Jóhannesson, G. ; Johnson, A. s. ; Kamae, T. ; Katagiri, H. ; Kataoka, J. ; Knödlseder, J. ; Kuss, M. ; Lande, J. ; Lee, S.-H. ; Longo, F. ; Loparco, F. ; Lott, B. ; Lovellette, M. N. ; Lubrano, P. ; Makeev, A. ; Max-Moerbeck, W. ; Mazziotta, M. N. ; Mcenery, J. E. ; Mehault, J. ; Michelson, P. F. ; Mizuno, T. ; Monte, C. ; Monzani, M. E. ; Morselli, A. ; Moskalenko, I. V. ; Murgia, S. ; Naumann-Godo, M. ; Nishino, S. ; Nolan, P. L. ; Norris, J. p. ; Nuss, E. ; Ohsugi, T. ; Okumura, A. ; Omodei, N. ; Orlando, E. ; Ormes, J. F. ; Ozaki, M. ; Paneque, D. ; Pavlidou, V. ; Pelassa, V. ; Pepe, M. ; Pesce-Rollins, M. ; Pierbattista, M. ; Piron, F. ; Porter, T. a. ; Rainò, S. ; Razzano, M. ; Readhead, A. ; Reimer, A. ; Reimer, O. ; Richards, J. L. ; Romani, R. W. ; Sadrozinski, H. f.-W. ; Scargle, J. d. ; Sgrò, C. ; Siskind, E. j. ; Smith, P. D. ; Spandre, G. ; Spinelli, P. ; Strickman, M. s. ; Suson, D. J. ; Takahashi, H. ; Tanaka, T. ; Taylor, G. B. ; Thayer, J. G. ; Thayer, J. B. ; Thompson, D. j. ; Torres, D. F. ; Tosti, G. ; Tramacere, A. ; Troja, E. ; Vandenbroucke, J. ; Vianello, G. ; Vitale, V. ; Waite, A. p. ; Wang, P. ; Winer, B. l. ; Wood, K. S. ; Yang, Z. ; Ziegler, M.
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0Ackermann, M.
1Ajello, M.
2Allafort, A.
3Angelakis, E.
4Axelsson, M.
5Baldini, L.
6Ballet, J.
7Barbiellini, G.
8Bastieri, D.
9Bellazzini, R.
10Berenji, B.
11Blandford, R. D.
12Bloom, E. D.
13Bonamente, E.
14Borgland, A. W.
15Bouvier, A.
16Bregeon, J.
17Brez, A.
18Brigida, M.
19Bruel, P.
20Buehler, R.
21Buson, S.
22Caliandro, G. A.
23Cameron, R. a.
24Cannon, A.
25Caraveo, P. A.
26Casandjian, J. M.
27Cavazzuti, E.
28Cecchi, C.
29Charles, E.
30Chekhtman, A.
31Cheung, C. C.
32Ciprini, S.
33Claus, R.
34Cohen-Tanugi, J.
35Cutini, S.
36De Palma, F.
37Dermer, C. d.
38Do Couto E Silva, E.
39Drell, P. S.
40Dubois, R.
41Dumora, D.
42Escande, L.
43Favuzzi, C.
44Fegan, S. j.
45Focke, W. B.
46Fortin, P.
47Frailis, M.
48Fuhrmann, L.
49Fukazawa, Y.
50Fusco, P.
51Gargano, F.
52Gasparrini, D.
53Gehrels, N.
54Giglietto, N.
55Giommi, P.
56Giordano, F.
57Giroletti, M.
58Glanzman, T.
59Godfrey, G.
60Grandi, P.
61Grenier, I. A.
62Guiriec, S.
63Hadasch, D.
64Hayashida, M.
65Hays, E.
66Healey, S. E.
67Jóhannesson, G.
68Johnson, A. s.
69Kamae, T.
70Katagiri, H.
71Kataoka, J.
72Knödlseder, J.
73Kuss, M.
74Lande, J.
75Lee, S.-H.
76Longo, F.
77Loparco, F.
78Lott, B.
79Lovellette, M. N.
80Lubrano, P.
81Makeev, A.
82Max-Moerbeck, W.
83Mazziotta, M. N.
84Mcenery, J. E.
85Mehault, J.
86Michelson, P. F.
87Mizuno, T.
88Monte, C.
89Monzani, M. E.
90Morselli, A.
91Moskalenko, I. V.
92Murgia, S.
93Naumann-Godo, M.
94Nishino, S.
95Nolan, P. L.
96Norris, J. p.
97Nuss, E.
98Ohsugi, T.
99Okumura, A.
100...
jtitleAstrophysical Journal
toplevelpeer_reviewed
delivery
delcategoryRemote Search Resource
fulltextfulltext
addata
aulast
0Ackermann
1Ajello
2Allafort
3Angelakis
4Axelsson
5Baldini
6Ballet
7Barbiellini
8Bastieri
9Bellazzini
10Berenji
11Blandford
12Bloom
13Bonamente
14Borgland
15Bouvier
16Bregeon
17Brez
18Brigida
19Bruel
20Buehler
21Buson
22Caliandro
23Cameron
24Cannon
25Caraveo
26Casandjian
27Cavazzuti
28Cecchi
29Charles
30Chekhtman
31Cheung
32Ciprini
33Claus
34Cohen-Tanugi
35Cutini
36de Palma
37Dermer
38do Couto e Silva
39Drell
40Dubois
41Dumora
42Escande
43Favuzzi
44Fegan
45Focke
46Fortin
47Frailis
48Fuhrmann
49Fukazawa
50Fusco
51Gargano
52Gasparrini
53Gehrels
54Giglietto
55Giommi
56Giordano
57Giroletti
58Glanzman
59Godfrey
60Grandi
61Grenier
62Guiriec
63Hadasch
64Hayashida
65Hays
66Healey
67Jóhannesson
68Johnson
69Kamae
70Katagiri
71Kataoka
72Knödlseder
73Kuss
74Lande
75Lee
76Longo
77Loparco
78Lott
79Lovellette
80Lubrano
81Makeev
82Max-Moerbeck
83Mazziotta
84McEnery
85Mehault
86Michelson
87Mizuno
88Monte
89Monzani
90Morselli
91Moskalenko
92Murgia
93Naumann-Godo
94Nishino
95Nolan
96Norris
97Nuss
98Ohsugi
99Okumura
100...
aufirst
0M.
1A.
2E.
3L.
4J.
5G.
6D.
7R.
8B.
9R. D.
10E. D.
11A. W.
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56D. J.
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au
0Ackermann, M.
1Ajello, M.
2Allafort, A.
3Angelakis, E.
4Axelsson, M.
5Baldini, L.
6Ballet, J.
7Barbiellini, G.
8Bastieri, D.
9Bellazzini, R.
10Berenji, B.
11Blandford, R. D.
12Bloom, E. D.
13Bonamente, E.
14Borgland, A. W.
15Bouvier, A.
16Bregeon, J.
17Brez, A.
18Brigida, M.
19Bruel, P.
20Buehler, R.
21Buson, S.
22Caliandro, G. A.
23Cameron, R. A.
24Cannon, A.
25Caraveo, P. A.
26Casandjian, J. M.
27Cavazzuti, E.
28Cecchi, C.
29Charles, E.
30Chekhtman, A.
31Cheung, C. C.
32Ciprini, S.
33Claus, R.
34Cohen-Tanugi, J.
35Cutini, S.
36de Palma, F.
37Dermer, C. D.
38do Couto e Silva, E.
39Drell, P. S.
40Dubois, R.
41Dumora, D.
42Escande, L.
43Favuzzi, C.
44Fegan, S. J.
45Focke, W. B.
46Fortin, P.
47Frailis, M.
48Fuhrmann, L.
49Fukazawa, Y.
50Fusco, P.
51Gargano, F.
52Gasparrini, D.
53Gehrels, N.
54Giglietto, N.
55Giommi, P.
56Giordano, F.
57Giroletti, M.
58Glanzman, T.
59Godfrey, G.
60Grandi, P.
61Grenier, I. A.
62Guiriec, S.
63Hadasch, D.
64Hayashida, M.
65Hays, E.
66Healey, S. E.
67Jóhannesson, G.
68Johnson, A. S.
69Kamae, T.
70Katagiri, H.
71Kataoka, J.
72Knödlseder, J.
73Kuss, M.
74Lande, J.
75Lee, S.-H.
76Longo, F.
77Loparco, F.
78Lott, B.
79Lovellette, M. N.
80Lubrano, P.
81Makeev, A.
82Max-Moerbeck, W.
83Mazziotta, M. N.
84McEnery, J. E.
85Mehault, J.
86Michelson, P. F.
87Mizuno, T.
88Monte, C.
89Monzani, M. E.
90Morselli, A.
91Moskalenko, I. V.
92Murgia, S.
93Naumann-Godo, M.
94Nishino, S.
95Nolan, P. L.
96Norris, J. P.
97Nuss, E.
98Ohsugi, T.
99Okumura, A.
100...
atitleTHE RADIO/GAMMA-RAY CONNECTION IN ACTIVE GALACTIC NUCLEI IN THE ERA OF THE FERMI LARGE AREA TELESCOPE
jtitleThe Astrophysical Journal
stitleTHE RADIO/GAMMA-RAY CONNECTION IN ACTIVE GALACTIC NUCLEI IN THE ERA OF THE FERMI LARGE AREA TELESCOPE
risdate20111101
volume741
issue1
spage30
pages20
issn0004-637X
eissn1538-4357
formatjournal
genrearticle
ristypeJOUR
abstractWe present a detailed statistical analysis of the correlation between radio and gamma-ray emission of the active galactic nuclei (AGNs) detected by Fermi during its first year of operation, with the largest data sets ever used for this purpose. We use both archival interferometric 8.4 GHz data (from the Very Large Array and ATCA, for the full sample of 599 sources) and concurrent single-dish 15 GHz measurements from the Owens Valley Radio Observatory (OVRO, for a sub sample of 199 objects). Our unprecedentedly large sample permits us to assess with high accuracy the statistical significance of the correlation, using a surrogate data method designed to simultaneously account for common-distance bias and the effect of a limited dynamical range in the observed quantities. We find that the statistical significance of a positive correlation between the centimeter radio and the broadband ( E > 100 MeV) gamma-ray energy flux is very high for the whole AGN sample, with a probability of <10 7 for the correlation appearing by chance. Using the OVRO data, we find that concurrent data improve the significance of the correlation from 1.6 × 10 6 to 9.0 × 10 8 . Our large sample size allows us to study the dependence of correlation strength and significance on specific source types and gamma-ray energy band. We find that the correlation is very significant (chance probability < 10 7 ) for both flat spectrum radio quasars and BL Lac objects separately; a dependence of the correlation strength on the considered gamma-ray energy band is also present, but additional data will be necessary to constrain its significance.
doi10.1088/0004-637X/741/1/30
orcidid0000-0001-6885-7156
date2011-11-01