射电强窄线Seyfert 1星系SDSS J094857 .3+002225的强烈夜内光学变率
Violent Intranight Optical Variability of a Radio-Loud Narrow-Line Seyfert 1 Galaxy: SDSS J094857.3+002225
摘要：
SDSS J094857.3+002225是一个射电非常强的窄线塞弗特1（NLS 1）星系。在这里，我们报告我们发现的intrinight光学变化（INOV）的这个星系通过光学监测在B和R波段，涵盖了七个晚上在2009年。在RL-NLS 1中首次发现了光学波段的剧烈快速变化，在几个小时的时间尺度上，INOV的振幅在B和R波段都达到0.5 mag。INOV的探测提供了一个强有力的证据，支持该物体携带一个小视角的相对论性喷流，这证实了以前多波长研究得出的结论。
英文摘要：
SDSS J094857.3+002225 is a very radio-loud narrow-line Seyfert 1 (NLS1) galaxy. Here, we report our discovery of the intranight optical variability (INOV) of this galaxy through the optical monitoring in the B and R bands that covered seven nights in 2009. Violent rapid variability in the optical bands was identified in this RL-NLS1 for the first time, and the amplitudes of the INOV reaches 0.5 mag in both the B and R bands on the timescale of several hours. The detection of the INOV provides a piece of strong evidence supporting the fact that the object carries a relativistic jet with a small viewing angle, which confirms the conclusion drawn from the previous multi-wavelength studies.
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