论文标题
在候选莱曼连续体发射Galaxy TOL 0440-381中的发光X射线源的快速上门
Rapid turn-on of a luminous X-ray source in the candidate Lyman continuum emitting galaxy Tol 0440-381
论文作者
论文摘要
Chandra对附近的候选Lyman-Continuum（LYC）排放Galaxy TOL 0440-381的观察表明，X射线源在3.8〜天内的X射线源至少为1.6e40 ERG/s的光度至少为4倍。 X射线发射可能是由低亮度AGN或超小X射线源引起的。 X射线源的性能与Haro 11和Tololo 1247-232中的性质相似，这是唯一在X射线中解决的其他发射LYC的星系。所有三个星系都有可能由吸积驱动的发光，可变和硬光谱X射线源。沉积到紧凑的物体上会产生强大的流出和电离辐射，从而有助于使LYC逃脱。
Chandra observations of the nearby, candidate Lyman-continuum (LyC) emitting galaxy Tol 0440-381 show brightening of an X-ray source by at least a factor of 4 to a luminosity of 1.6E40 erg/s over 3.8~days. The X-ray emission likely arises from either a low-luminosity AGN or an ultraluminous X-ray source. The properties of the X-ray source are similar to those found in Haro 11 and Tololo 1247-232, the only other LyC-emitting galaxies that have been resolved in X-rays. All three galaxies host luminous, variable, and hard spectrum X-ray sources that are likely accretion-powered. Accretion onto compact objects produces powerful outflows and ionizing radiation that could help enable LyC escape.
