中文

GRS 1716-249爆发期的多波段研究:对其系统参数的约束

高能天体物理现象 2022-06-22 v1

摘要

我们详细研究了银河系黑洞暂现源GRS 1716-249在2016-2017年爆发期间的演化,涵盖光学(Las Cumbres天文台)、中红外(甚大望远镜)、近红外(Rapid Eye Mount望远镜)和紫外(Neil Gehrels Swift天文台紫外/光学望远镜)波段,以及档案射电和X射线数据。我们表明该源的光学/近红外和紫外辐射主要源自多温度吸积盘,而中红外和射电辐射由致密喷流的同步辐射主导。当源处于硬态时,光学/紫外流量密度与X射线辐射相关,这与X射线照射的吸积盘一致,并在爆发衰退期间有来自黏性吸积盘的额外贡献。我们还报告了该源的长期光学光变曲线,发现宁静态i波段星等为21.39±\pm0.15 mag。此外,我们讨论先前对该源系统参数的估计基于各种错误假设,因此可能不准确。通过将我们的GRS 1716-249数据集与其他爆发黑洞X射线双星的数据集比较,我们发现虽然GRS 1716-249表现出相似的X射线行为,但若采用文献中2.4 kpc的距离,其光学明显更暗。利用多条推理线索,我们认为该源距离比文献中先前假设更远,可能在4-17 kpc以内,最可能范围为\sim4-8 kpc。

关键词

引用

@article{arxiv.2205.04452,
  title  = {A multi-wavelength study of GRS 1716-249 in outburst : constraints on its system parameters},
  author = {Payaswini Saikia and David M. Russell and M. C. Baglio and D. M. Bramich and Piergiorgio Casella and M. Diaz Trigo and Poshak Gandhi and Jiachen Jiang and Thomas Maccarone and Roberto Soria and Hind Al Noori and Aisha Al Yazeedi and Kevin Alabarta and Tomaso Belloni and Marion Cadolle Bel and Chiara Ceccobello and Stephane Corbel and Rob Fender and Elena Gallo and Jeroen Homan and Karri Koljonen and Fraser Lewis and Sera B. Markoff and James C. A. Miller-Jones and Jerome Rodriguez and Thomas D. Russell and Tariq Shahbaz and Gregory R. Sivakoff and Vincenzo Testa and Alexandra J. Tetarenko},
  journal= {arXiv preprint arXiv:2205.04452},
  year   = {2022}
}

备注

Accepted for publication in The Astrophysical Journal