S. Archambault, A. Archer, T. Aune, Anna Barnacka, W. Benbow, R. Bird, M. Buchovecky, J. H. Buckley, V. Bugaev, K. Byrum, J. V. Cardenzana, M. Cerruti, Xuhui Chen, L. Ciupik, E. Collins-Hughes, M. P. Connolly, W. Cui, H. J. Dickinson, J. Dumm, J. D. Eisch, A. Falcone, Q. Feng, J. P. Finley, H. Fleischhack, A. Flinders, P. Fortin, L. Fortson, A. Furniss, G. H. Gillanders, S. Griffin, J. Grube, G. Gyuk, M. Huetten, Nils Hakansson, D. Hanna, J. Holder, T. B. Humensky, C. A. Johnson, P. Kaaret, P. Kar, N. Kelley-Hoskins, M. Kertzman, Y. Khassen, D. Kieda, M. Krause, F. Krennrich, S. Kumar, M. J. Lang, G. Maier, S. McArthur, A. McCann, K. Meagher, J. Millis, P. Moriarty, R. Mukherjee, D. Nieto, R. A. Ong, A. N. Otte, D. Pandel, N. Park, V. Pelassa, Martin Pohl, A. Popkow, Elisa Pueschel, J. Quinn, K. Ragan, P. T. Reynolds, G. T. Richards, E. Roache, J. Rousselle, C. Rulten, M. Santander, G. H. Sembroski, K. Shahinyan, A. W. Smith, D. Staszak, Igor O. Telezhinsky, J. V. Tucci, J. Tyler, S. Vincent, S. P. Wakely, O. M. Weiner, A. Weinstein, Alina Wilhelm, D. A. Williams, B. Zitzer
- The TeV binary system LS I +61 degrees 303 is known for its regular, non-thermal emission pattern that traces the orbital period of the compact object in its 26.5 day orbit around its B0 Ve star companion. The system typically presents elevated TeV emission around apastron passage with flux levels between 5% and 15% of the steady flux from the Crab Nebula (> 300 GeV). In this article, VERITAS observations of LS I + 61 degrees. 303 taken in late 2014 are presented, during which bright TeV flares around apastron at flux levels peaking above 30% of the Crab Nebula flux were detected. This is the brightest such activity from this source ever seen in the TeV regime. The strong outbursts have rise and fall times of less than a day. The short timescale of the flares, in conjunction with the observation of 10 TeV photons from LS I + 61 degrees 303 during the flares, provides constraints on the properties of the accelerator in the source.
MetadatenAuthor details: | S. Archambault, A. Archer, T. Aune, Anna Barnacka, W. Benbow, R. Bird, M. Buchovecky, J. H. Buckley, V. Bugaev, K. Byrum, J. V. Cardenzana, M. Cerruti, Xuhui Chen, L. Ciupik, E. Collins-Hughes, M. P. Connolly, W. Cui, H. J. Dickinson, J. Dumm, J. D. Eisch, A. Falcone, Q. Feng, J. P. Finley, H. Fleischhack, A. Flinders, P. Fortin, L. Fortson, A. Furniss, G. H. Gillanders, S. Griffin, J. Grube, G. Gyuk, M. Huetten, Nils Hakansson, D. Hanna, J. Holder, T. B. Humensky, C. A. Johnson, P. Kaaret, P. Kar, N. Kelley-Hoskins, M. Kertzman, Y. Khassen, D. Kieda, M. Krause, F. Krennrich, S. Kumar, M. J. Lang, G. Maier, S. McArthur, A. McCann, K. Meagher, J. Millis, P. Moriarty, R. Mukherjee, D. Nieto, R. A. Ong, A. N. Otte, D. Pandel, N. Park, V. Pelassa, Martin PohlORCiDGND, A. Popkow, Elisa PueschelORCiD, J. Quinn, K. Ragan, P. T. Reynolds, G. T. Richards, E. Roache, J. Rousselle, C. Rulten, M. Santander, G. H. Sembroski, K. Shahinyan, A. W. Smith, D. Staszak, Igor O. TelezhinskyORCiD, J. V. Tucci, J. Tyler, S. Vincent, S. P. Wakely, O. M. Weiner, A. Weinstein, Alina WilhelmORCiDGND, D. A. Williams, B. Zitzer |
---|
DOI: | https://doi.org/10.3847/2041-8205/817/1/L7 |
---|
ISSN: | 2041-8205 |
---|
ISSN: | 2041-8213 |
---|
Title of parent work (English): | The astrophysical journal : an international review of spectroscopy and astronomical physics ; Part 2, Letters |
---|
Publisher: | IOP Publ. Ltd. |
---|
Place of publishing: | Bristol |
---|
Publication type: | Article |
---|
Language: | English |
---|
Year of first publication: | 2016 |
---|
Publication year: | 2016 |
---|
Release date: | 2020/03/22 |
---|
Tag: | X-rays: binaries; binaries: general; gamma-rays: general; stars: individual (LS I+61 degrees 303, VER J0240+612) |
---|
Volume: | 817 |
---|
Number of pages: | 6 |
---|
Funding institution: | U.S. Department of Energy Office of Science; U.S. National Science Foundation; Smithsonian Institution; NSERC in Canada; Helmholtz Association; Fermi Cycle 7 Guest Investigator Program [NNH13ZDA001N] |
---|
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
---|
Peer review: | Referiert |
---|