arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1608.01569astro-ph.HE
收藏

2009年5月马卡良501的超高能爆发

Very High Energy outburst of Markarian 501 in May 2009

E. Aliu, S. Archambault, A. Archer, T. Arlen, T. Aune, A. Barnacka, B. Behera, M. Beilicke, W. Benbow, K. Berger, R. Bird, A. Bouvier, M. Böttcher, M. Buchoveck… 展开作者

E. Aliu, S. Archambault, A. Archer, T. Arlen, T. Aune, A. Barnacka, B. Behera, M. Beilicke, W. Benbow, K. Berger, R. Bird, A. Bouvier, M. Böttcher, M. Buchovecky, J. H. Buckley, V. Bugaev, J. V Cardenzana, M. Cerruti, A. Cesarini, X. Chen, L. Ciupik, E. Collins-Hughes, M. P. Connolly, W. Cui, J. Dumm, J. D. Eisch, A. Falcone, S. Federici, Q. Feng, J. P. Finley, H. Fleischhack, P. Fortin, L. Fortson, A. Furniss, N. Galante, D. Gall, G. H. Gillanders, S. Griffin, S. T. Griffiths, J. Grube, G. Gyuk, M. Hütten, N. Håkansson, J. Holder, G. Hughes, T. B. Humensky, C. A. Johnson, P. Kaaret, P. Kar, N. Kelley-Hoskins, M. Kertzman, Y. Khassen, D. Kieda, M. Krause, H. Krawczynski, F. Krennrich, M. J. Lang, A. S Madhavan, G. Maier, S. McArthur, A. McCann, K. Meagher, J. Millis, P. Moriarty, R. Mukherjee, D. Nieto, A. O'Faoláin de Bhróithe, R. A. Ong, M. Orr, A. N. Otte, D. Pandel, N. Park, V. Pelassa, J. S. Perkins, A. Pichel, M. Pohl, A. Popkow, J. Quinn, K. Ragan, L. C. Reyes, P. T. Reynolds, E. Roache, J. Rousselle, A. C. Rovero, D. B. Saxon, G. H. Sembroski, K. Shahinyan, F. Sheidaei, C. Skole, A. W. Smith, D. Staszak, I. Telezhinsky, M. Theiling, N. W. Todd, J. V. Tucci, J. Tyler, A. Varlotta, V. V. Vassiliev, S. Vincent, S. P. Wakely, O. M. Weiner, A. Weinstein, R. Welsing, A. Wilhelm, D. A. Williams, B. Zitzer, M. G. Baring, J. Becerra Gónzalez, A. N. Cillis, D. Horan, D. Paneque

摘要:

甚高能量(VHE; E $>$ 100 GeV)耀变体Markarian 501在2009年4月17日至5月5日(MJD 54938- 54956)之间被观测到,作为从无线电到VHE的广泛多波长活动的一部分。5月1日,惠普尔和VERITAS探测到强烈的VHE $γ$射线活动,当时的通量(E $>$ 400 GeV)增加到耀斑前基线通量($3.9{\times 10^{-11}}~{\rm ph~cm^{-2}~s^{-1}}$)的10倍,达到蟹状星云通量的5倍。这与光学偏振的减小和偏振角旋转15 $^{\circ}$相一致。这个VHE耀斑显示出快速的通量变化,在25分钟内增加了$\sim$ 4倍,而下降时间为$\sim$ 50分钟。我们目前的观测的静态耀斑和耀斑后的高状态,侧重于从惠普尔,VERITAS,费米-LAT,RXTE和雨燕结合光学和无线电数据的流量和光谱变化。

英文摘要:

The very high energy (VHE; E $>$ 100 GeV) blazar Markarian 501 was observed between April 17 and May 5 (MJD 54938--54956), 2009, as part of an extensive multi-wavelength campaign from radio to VHE. Strong VHE $γ$-ray activity was detected on May 1st with Whipple and VERITAS, when the flux (E $>$ 400 GeV) increased to 10 times the pre-flare baseline flux ($3.9{\times 10^{-11}}~{\rm ph~cm^{-2}~s^{-1}}$), reaching five times the flux of the Crab Nebula. This coincided with a decrease in the optical polarization and a rotation of the polarization angle by 15$^{\circ}$. This VHE flare showed a fast flux variation with an increase of a factor $\sim$4 in 25 minutes, and a falling time of $\sim$50 minutes. We present the observations of the quiescent state previous to the flare and of the high state after the flare, focusing on the flux and spectral variability from Whipple, VERITAS, Fermi-LAT, RXTE, and Swift combined with optical and radio data.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑