矮新星V1227 Herculis中的超级爆发与掠食
太阳与恒星天体物理
2013-04-11 v2
摘要
我们呈现了2012年5月和9月频繁爆发的矮新星V1227 Her的爆发期间的光度测量。两次事件中都存在超驼峰,峰峰振幅高达0.28星等,表明这些事件是超级爆发。我们首次证明该系统发生深度达0.08星等、持续11至14分钟的小型食,很可能是吸积盘的掠食。9月的爆发观测更充分,持续至少14天,爆发振幅约4星等。平均超驼峰周期Psh = 0.065103(20)天。对食极小时间的分析给出了轨道周期Porb = 0.064419(26)天,但由于观测食的时间相对较短,存在一些模糊性。超驼峰周期超额分数ε为0.0106(7)。
引用
@article{arxiv.1303.7088,
title = {Superoutbursts and grazing eclipses in the dwarf nova V1227 Herculis},
author = {Jeremy Shears and Ian Miller and Roger Pickard and Richard Sabo},
journal= {arXiv preprint arXiv:1303.7088},
year = {2013}
}
备注
Accepted for publication in the Journal of the British Astronomical Association. 17 pages, 6 figures. The target star of this paper, SDSS J165359.06+201010.4, has now received the official name of V1227 Her in the General Catalogue of Variable Stars. This version contains the new name