2012

Discovery of hard-spectrum \gamma-ray emission from the BL Lac object 1ES 0414+009

The HESS Collaboration, Abramowski, A., Acero, F. et al.

Understand

1ES 0414+009 (z = 0.287) is a distant high-frequency-peaked BL Lac object, and has long been considered a likely emitter of very-high energy (VHE, E>100 GeV) gamma-rays due to its high X-ray and radio flux.

Observations in the VHE gamma-ray band and across the electromagnetic spectrum can provide insights into the origin of highly energetic particles present in the source and the radiation processes at work.
Because of the distance of the source, the gamma-ray spectrum might provide further limits on the level of the Extragalactic Background Light (EBL).
We report observations made between October 2005 and December 2009 with H.E.S.S., an array of four imaging atmospheric Cherenkov telescopes.

Built on

Wilks, S. S. 1938, Ann. Math. Statist., 9, 1, 60
1938
Earlier work this paper cites.
Gursky, H., Bradt, H., Doxsey, R., et al. 1978, ApJ, 223, 973
1978
Earlier work this paper cites.
Giacconi, H., Branduardi, G., Briel, U., et al. 1979, ApJ 230, 540
1979
Earlier work this paper cites.
Ulmer, M. P., Brown, R. L., Schwartz, D. A., Patterson, J., & Cruddace, R. G. 1983, ApJ 270, L1
1983
Earlier work this paper cites.
Impey, C.D. & Tapia, S. 1988, ApJ 333, 666
1988
Earlier work this paper cites.
Cardelli, J. A., Clayton, G. C., & Mathis, J. S. 1989, ApJ 345, 245
1989
Earlier work this paper cites.
Giommi, P., Barr, P., Pollock, A. M. T., Garilli, B., & Maccagni, D. 1990, ApJ 356, 432
1990
Earlier work this paper cites.
Halpern, J. P., Chen, V. S., Madejski, G. M., & Chanan, G. A. 1991, Astron. Journal, 101, 818
1991
Earlier work this paper cites.
O’Donnel, J. E. 1994, ApJ 422, 158
1994
Earlier work this paper cites.
Sambruna, R. M., Barr, P., Giommi, P., et al. 1994, ApJS 95, 371
1994
Earlier work this paper cites.
Brinkmann, W., Siebert, J., Reich, W., et al. 1995, A&ASS, 109, 147
1995
Earlier work this paper cites.
Padovani, P. & Giommi, P. 1995, MNRAS 427, 1477
1995
Earlier work this paper cites.
Bertin, E. & Arnouts, S. 1996, A&AS, 117, 393
1996
Earlier work this paper cites.
Mattox, J. R., Bertsch, D. L., Chiang, J., et al. 1996, ApJ 461, 396
1996
Earlier work this paper cites.
Feldman, G. J., & Cousins R. D. 1998, Phys. Rev. D, 57, 3873
1998
Earlier work this paper cites.
Fiorucci, M., Tosti, G., & Rizzi, N. 1998, PASP, 110, 105
1998
Earlier work this paper cites.
Kubo, H., Takahashi, T., Madejski, G., et al. 1998, ApJ 504, 693
1998
Earlier work this paper cites.
Silva, L., Granato, G. L., Bressan, A., & Danese, L. 1998, ApJ 509, 103
1998
Earlier work this paper cites.

Similar

Schlegel, D. J., Finkbeiner, D. P., & Davis, M. 1998, ApJ 500, 525
1998
Cited alongside, same era.
Tavecchio, F., Maraschi, L., & Ghisellini, G. 1998, ApJ, 509, 608
1998
Cited alongside, same era.
Elvis, L. et al. 1999, NCSA Astronomy Digital Image Library
1999
Cited alongside, same era.
Aharonian, F. A., Akhperjanian, A. G., Barrio, J. A., et al. 2000, A&A, 353, 847
2000
Cited alongside, same era.
Guy, J., Renault, C., Aharonian, F. A., Rivoal, M., & Tavernet, J.-P. 2000, A&A, 359, 419
2000
Cited alongside, same era.
Scarpa, R., Urry, C. M., Falomo, R., Pesce, J., & Treves, A. 2000, ApJ 532, 740
2000
Cited alongside, same era.
Costamante, L., Ghisellini, G., Giommi, P., et al. 2001, A&A, 371, 512
2001
Cited alongside, same era.
Piron, F., Djannati-Ataï, A., Punch, M. et al. 2001, A&A, 374, 895
2001
Cited alongside, same era.
Beckmann, V., Wolter, A., Celotti, A., et al. 2002, A&A, 383, 410
2002
Cited alongside, same era.
Costamante, L., & Ghisellini, G. 2002, A&A, 384, 56
2002
Cited alongside, same era.
Ghisellini, G., Celotti, A., & Costamante, L. 2002, A&A, 386, 833
2002
Cited alongside, same era.
Krawczynski, H., Coppi, P. S., & Aharonian, F. 2002, MNRAS, 336, 721
2002
Cited alongside, same era.

Then

Moderski, R., Sikora, M., Coppi, P. S. & Aharonian, F. 2005, MNRAS 363, 954
2005
Later among the works it cites.
Roming, P. W. A., Kennedy, T. E., Mason, K. O, et al. 2005, Space Science Reviews, 120, 95
2005
Later among the works it cites.
Berge, D., Funk, S., & Hinton, J. 2007, A&A, 466, 1219
2007
Later among the works it cites.
Tramacere, A., Giommi, P., Massaro, E., et al. 2007, A&A, 467, 501
2007
Later among the works it cites.
Aharonian, F., Khangulyan, D., & Costamante, L. 2008, MNRAS, 387, 1206
2008
Later among the works it cites.
Ajello, M., Rau, A., Greiner, J., et al. 2008, ApJ 673, 96
2008
Later among the works it cites.
Boettcher, M., Dermer, C. D., & Finke, J. D. 2008, ApJ 679L, 9
2008
Later among the works it cites.
Franceschini, A., Rodighiero, G., & Vaccari, M. 2008, A&A, 487, 837
2008
Later among the works it cites.
Poole, T. S., Breeveld, A. A., Page, M. J., et al. 2008, MNRAS, 383, 627
2008
Later among the works it cites.
Acciari, V. A. et al. (VERITAS Collaboration) 2009, ApJ 695, 1370
2009
Later among the works it cites.
Atwood, W. B. et al. (Fermi Collaboration) 2009, ApJ 697, 1071
2009
Later among the works it cites.
de Naurois, M. & Rolland, L. 2009, Astrop. Phys., 32, 231
2009
Later among the works it cites.
Ohm, S., van Eldik, C., & Egberts, K. 2009, Astrop. Phys., 31, 383
2009
Later among the works it cites.
Tavecchio, F., Ghisellini, G., Ghirlanda, G., Costamante, L., & Franceschini, A. 2009, MNRAS, 399L, 59
2009
Later among the works it cites.
The CTA Consortium 2010, arXiv:1008.3703v2
Original
2010
Later among the works it cites.
Abdo, A. A. et al. (Fermi Collaboration) 2011, submitted to ApJ arXiv:1108.1435v1
Original
2011
Later among the works it cites.
Dominguez, A., Primack, J. R., Rosario, D. J., et al. 2011, MNRAS, 410, 2556
2011
Later among the works it cites.

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