利用 H.E.S.S. 观测探测 GW170817 抛射流中的磁场
高能天体物理现象
2020-05-19 v2
摘要
首次探测到双中子星（BNS）并合遗迹 GW170817 的电磁对应体，确立了短 -射线暴与 BNS 并合之间的联系。它也通过 r-过程核合成确认了抛射物中重元素的锻造（所谓千新星）。非热射电与 X 射线辐射的出现，以及持续逾 100 天的增亮，在某种程度上出乎意料。当前理论模型试图将此时间行为解释为源自相对论性偏轴喷流或类千新星抛射流。无论哪种情形，关于多少能量被输送到非热电子与发射区的磁场之间均存在模糊性。将 VLA（射电）与 Chandra（X 射线）测量同 GeV-TeV 能段的观测相结合，可有助于打破该模糊性，且几乎与所假设发射起源无关。在此，我们首次报告在 BNS 并合后 124 至 272 天使用完整 H.E.S.S. 望远镜阵列对 GW170817 / GRB 170817A 的深 H.E.S.S. 观测，以及使用升级后 H.E.S.S. 相位-I 望远镜对瞬时（<5 天）观测的更新分析。我们讨论了 H.E.S.S. 测量在不同源情形下对磁场的意义。
引用
@article{arxiv.2004.10105,
title = {Probing the magnetic field in the GW170817 outflow using H.E.S.S. observations},
author = {H. E. S. S. Collaboration and : and H. Abdalla and R. Adam and F. Aharonian and F. Ait Benkhali and E. O. Angüner and M. Arakawa and C. Arcaro and C. Armand and T. Armstrong and H. Ashkar and M. Backes and V. Baghmanyan and V. Barbosa-Martins and A. Barnacka and M. Barnard and Y. Becherini and D. Berge and K. Bernlöhr and R. Blackwell and M. Böttcher and C. Boisson and J. Bolmont and S. Bonnefoy and J. Bregeon and M. Breuhaus and F. Brun and P. Brun and M. Bryan and M. Büchele and T. Bulik and T. Bylund and S. Caroff and A. Carosi and S. Casanova and M. Cerruti and T. Chand and S. Chandra and A. Chen and G. Cotter and M. Curyło and I. D. Davids and J. Davies and C. Deil and J. Devin and P. deWilt and L. Dirson and A. Djannati-Ataï and A. Dmytriiev and A. Donath and V. Doroshenko and J. Dyks and K. Egberts and F. Eichhorn and G. Emery and J. -P. Ernenwein and S. Eschbach and K. Feijen and S. Fegan and A. Fiasson and G. Fontaine and S. Funk and M. Füßling and S. Gabici and Y. A. Gallant and G. Giavitto and L. Giunti and D. Glawion and J. F. Glicenstein and D. Gottschall and M. -H. Grondin and J. Hahn and M. Haupt and G. Heinzelmann and G. Hermann and J. A. Hinton and W. Hofmann and C. Hoischen and T. L. Holch and M. Holler and M. Hörbe and D. Horns and D. Huber and H. Iwasaki and M. Jamrozy and D. Jankowsky and F. Jankowsky and A. Jardin-Blicq and V. Joshi and I. Jung-Richardt and M. A. Kastendieck and K. Katarzyński and M. Katsuragawa and U. Katz and D. Khangulyan and B. Khélifi and S. Klepser and W. Kluźniak and Nu. Komin and R. Konno and K. Kosack and D. Kostunin and M. Kreter and G. Lamanna and A. Lemière and M. Lemoine-Goumard and J. -P. Lenain and E. Leser and C. Levy and T. Lohse and I. Lypova and J. Mackey and J. Majumdar and D. Malyshev and D. Malyshev and V. Marandon and P. Marchegiani and A. Marcowith and A. Mares and G. Martí-Devesa and R. Marx and G. Maurin and P. J. Meintjes and R. Moderski and M. Mohamed and L. Mohrmann and C. Moore and P. Morris and E. Moulin and J. Muller and T. Murach and S. Nakashima and K. Nakashima and M. de Naurois and H. Ndiyavala and F. Niederwanger and J. Niemiec and L. Oakes and P. O'Brien and H. Odaka and S. Ohm and E. de Ona Wilhelmi and M. Ostrowski and M. Panter and R. D. Parsons and B. Peyaud and Q. Piel and S. Pita and V. Poireau and A. Priyana Noel and D. A. Prokhorov and H. Prokoph and G. Pühlhofer and M. Punch and A. Quirrenbach and S. Raab and R. Rauth and A. Reimer and O. Reimer and Q. Remy and M. Renaud and F. Rieger and L. Rinchiuso and C. Romoli and G. Rowell and B. Rudak and E. Ruiz-Velasco and V. Sahakian and S. Sailer and S. Saito and D. A. Sanchez and A. Santangelo and M. Sasaki and M. Scalici and R. Schlickeiser and F. Schüssler and A. Schulz and H. Schutte and U. Schwanke and S. Schwemmer and M. Seglar-Arroyo and M. Senniappan and A. S. Seyffert and N. Shafi and K. Shiningayamwe and R. Simoni and A. Sinha and H. Sol and A. Specovius and S. Spencer and M. Spir-Jacob and Ł. Stawarz and R. Steenkamp and C. Stegmann and C. Steppa and T. Takahashi and T. Tavernier and A. M. Taylor and R. Terrier and D. Tiziani and M. Tluczykont and L. Tomankova and C. Trichard and M. Tsirou and N. Tsuji and R. Tuffs and Y. Uchiyama and D. J. van der Walt and C. van Eldik and C. van Rensburg and B. van Soelen and G. Vasileiadis and J. Veh and C. Venter and P. Vincent and J. Vink and H. J. Völk and T. Vuillaume and Z. Wadiasingh and S. J. Wagner and J. Watson and F. Werner and R. White and A. Wierzcholska and R. Yang and H. Yoneda and M. Zacharias and R. Zanin and A. A. Zdziarski and A. Zech and J. Zorn and N. Zywucka and X. Rodrigues},
journal= {arXiv preprint arXiv:2004.10105},
year = {2020}
}
备注
7 pages, 2 figures, 1 table