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Long-term TeV and X-ray observations of the gamma-ray binary hess j0632+057

  • E. Aliu
  • , S. Archambault
  • , T. Aune
  • , B. Behera
  • , M. Beilicke
  • , W. Benbow
  • , K. Berger
  • , R. Bird
  • , A. Bouvier
  • , J. H. Buckley
  • , V. Bugaev
  • , K. Byrum
  • , M. Cerruti
  • , X. Chen
  • , L. Ciupik
  • , M. P. Connolly
  • , W. Cui
  • , C. Duke
  • , J. Dumm
  • , M. Errando
  • A. Falcone, S. Federici, Q. Feng, J. P. Finley, P. Fortin, L. Fortson, A. Furniss, N. Galante, G. H. Gillanders, S. Griffin, S. T. Griffiths, J. Grube, G. Gyuk, D. Hanna, J. Holder, G. Hughes, T. B. Humensky, P. Kaaret, M. Kertzman, Y. Khassen, D. Kieda, H. Krawczynski, F. Krennrich, M. J. Lang, A. S. Madhavan, G. Maier, P. Majumdar, A. McCann, P. Moriarty, R. Mukherjee, D. Nieto, A. O.Faoláin De Bhróithe, R. A. Ong, A. N. Otte, N. Park, J. S. Perkins, M. Pohl, A. Popkow, H. Prokoph, J. Quinn, K. Ragan, J. Rajotte, L. C. Reyes, P. T. Reynolds, G. T. Richards, E. Roache, J. Rousselle, G. H. Sembroski, F. Sheidaei, C. Skole, A. W. Smith, D. Staszak, M. Stroh, I. Telezhinsky, M. Theiling, J. V. Tucci, J. Tyler, A. Varlotta, S. Vincent, S. P. Wakely, A. Weinstein, R. Welsing, D. A. Williams, A. Zajczyk, B. Zitzer, A. Abramowski, F. Aharonian, F. Ait Benkhali, A. G. Akhperjanian, E. Angüner, G. Anton, S. Balenderan, A. Balzer, A. Barnacka, Y. Becherini, J. Becker Tjus, K. Bernlöhr, E. Birsin, E. Bissaldi, J. Biteau, M. Böttcher, C. Boisson, J. Bolmont, P. Bordas, J. Brucker, F. Brun, P. Brun, T. Bulik, S. Carrigan, S. Casanova, P. M. Chadwick, R. Chalme-Calvet, R. C.G. Chaves, A. Cheesebrough, M. Chrétien, S. Colafrancesco, G. Cologna, J. Conrad, C. Couturier, M. Dalton, M. K. Daniel, I. D. Davids, B. Degrange, C. Deil, P. Dewilt, H. J. Dickinson, A. Djannati-Ataï, W. Domainko, L. O.C. Drury, G. Dubus, K. Dutson, J. Dyks, M. Dyrda, T. Edwards, K. Egberts, P. Eger, P. Espigat, C. Farnier, S. Fegan, F. Feinstein, M. V. Fernandes, D. Fernandez, A. Fiasson, G. Fontaine, A. Förster, M. Füssling, M. Gajdus, Y. A. Gallant, T. Garrigoux, G. Giavitto, B. Giebels, J. F. Glicenstein, M. H. Grondin, M. Grudzińska, S. Häffner, J. Hahn, J. Harris, G. Heinzelmann, G. Henri, G. Hermann, O. Hervet, A. Hillert, J. A. Hinton, W. Hofmann, P. Hofverberg, M. Holler, D. Horns, A. Jacholkowska, C. Jahn, M. Jamrozy, M. Janiak, F. Jankowsky, I. Jung, M. A. Kastendieck, K. Katarzyński, U. Katz, S. Kaufmann, B. Khélifi, M. Kieffer, S. Klepser, D. Klochkov, W. Kluźniak, T. Kneiske, D. Kolitzus, Nu Komin, K. Kosack, S. Krakau, F. Krayzel, P. P. Krüger, H. Laffon, G. Lamanna, J. Lefaucheur, A. Lemière, M. Lemoine-Goumard, J. P. Lenain, D. Lennarz, T. Lohse, A. Lopatin, C. C. Lu, V. Marandon, A. Marcowith, R. Marx, G. Maurin, N. Maxted, M. Mayer, T. J.L. McComb, J. Méhault, U. Menzler, M. Meyer, R. Moderski, M. Mohamed, E. Moulin, T. Murach, C. L. Naumann, M. De Naurois, J. Niemiec, S. J. Nolan, L. Oakes, S. Ohm, E. De Oña Wilhelmi, B. Opitz, M. Ostrowski, I. Oya, M. Panter, R. D. Parsons, M. Paz Arribas, N. W. Pekeur, G. Pelletier, J. Perez, P. O. Petrucci, B. Peyaud, S. Pita, H. Poon, G. Pühlhofer, M. Punch, A. Quirrenbach, S. Raab, M. Raue, A. Reimer, O. Reimer, M. Renaud, R. De Los Reyes, F. Rieger, L. Rob, C. Romoli, S. Rosier-Lees, G. Rowell, B. Rudak, C. B. Rulten, V. Sahakian, D. A. Sanchez, A. Santangelo, R. Schlickeiser, F. Schüssler, A. Schulz, U. Schwanke, S. Schwarzburg, S. Schwemmer, H. Sol, G. Spengler, F. Spies, Stawarz, R. Steenkamp, C. Stegmann, F. Stinzing, K. Stycz, I. Sushch, A. Szostek, J. P. Tavernet, T. Tavernier, A. M. Taylor, R. Terrier, M. Tluczykont, C. Trichard, K. Valerius, C. Van Eldik, G. Vasileiadis, C. Venter, A. Viana, P. Vincent, H. J. Völk, F. Volpe, M. Vorster, S. J. Wagner, P. Wagner, M. Ward, M. Weidinger, Q. Weitzel, R. White, A. Wierzcholska, P. Willmann, A. Wörnlein, D. Wouters, M. Zacharias, A. Zajczyk, A. A. Zdziarski, A. Zech, H. S. Zechlin
  • Barnard College
  • McGill University
  • University of California, Los Angeles
  • c/o DESY
  • Washington University in St. Louis
  • Center for Astrophysics | Harvard & Smithsonian
  • The Bartol Research Institute
  • University College Dublin
  • University of California at Santa Cruz
  • Argonne National Laboratory
  • LUTH - Laboratoire de l'Univers et de ses Theories
  • University of Potsdam
  • Adler Planetarium
  • IDA Business Park
  • Purdue University
  • Grinnell College
  • University of Minnesota
  • Pennsylvania State University
  • University of Iowa
  • Columbia University
  • DePauw University
  • University of Utah
  • Iowa State University
  • Saha Institute of Nuclear Physics
  • University of Chicago
  • Galway-Mayo Institute of Technology
  • College of Computing
  • University of Chicago
  • NASA Goddard Space Flight Center
  • California Polytechnic State University, San Luis Obispo
  • Cork Institute of Technology
  • Universität Hamburg
  • Max-Planck-Institut für Kernphysik
  • Dublin Institute for Advanced Studies
  • National Academy of Sciences of Armenia
  • Yerevan Physics Institute
  • Humboldt-Universität zu Berlin
  • Friedrich-Alexander University (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen
  • Durham University
  • Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
  • Landessternwarte Heidelberg
  • Ruhr-University Bochum
  • University of Innsbruck
  • Ip Paris
  • North-West University
  • Universités Paris VI and VII
  • University of Tübingen
  • Universite Paris-Saclay
  • University of Warsaw
  • University of the Witwatersrand, Johannesburg
  • Oskar Klein Centre
  • UMR 5797
  • University of Namibia
  • University of Adelaide
  • Astroparticule and Cosmol APC
  • Université Grenoble Alpes
  • University of Leicester
  • Institute for Nuclear Physics
  • Laboratoire Univers et Particules de Montpellier
  • Laboratoire de Physique des Particules
  • Jagiellonian University
  • Nicolaus Copernicus University
  • University of Leeds
  • Charles University

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55 Citations (Scopus)

Résumé

HESS J0632+057 is the only gamma-ray binary known so far whose position in the sky allows observations with ground-based observatories in both the northern and southern hemispheres. Here we report on long-term observations of HESS J0632+057 conducted with the Very Energetic Radiation Imaging Telescope Array System and High Energy Stereoscopic System Cherenkov telescopes and the X-ray satellite Swift, spanning a time range from 2004 to 2012 and covering most of the system's orbit. The very-high-energy (VHE) emission is found to be variable and is correlated with that at X-ray energies. An orbital period of days is derived from the X-ray data set, which is compatible with previous results, P = (321 ± 5) days. The VHE light curve shows a distinct maximum at orbital phases close to 0.3, or about 100 days after periastron passage, which coincides with the periodic enhancement of the X-ray emission. Furthermore, the analysis of the TeV data shows for the first time a statistically significant (>6.5σ) detection at orbital phases 0.6-0.9. The obtained gamma-ray and X-ray light curves and the correlation of the source emission at these two energy bands are discussed in the context of the recent ephemeris obtained for the system. Our results are compared to those reported for other gamma-ray binaries.

langue originaleAnglais
Numéro d'article168
journalAstrophysical Journal
Volume780
Numéro de publication2
Les DOIs
étatPublié - 10 janv. 2014

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