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APS -APS April Meeting 2017 - Event - Periodicity of Mrk 501 in Optical Wavelengths

机译:APS -APS四月会议2017-活动-Mrk 501在光波长中的周期性

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We present data for Mrk501 from 2009-2016 taken by ROVOR and WMO in Johnson B, V, and R filters. An aperture of radius 5" was used for all data. Photometry was referenced to the same ensemble of stars in all frames. We find strong evidence for a regular light curve matching a sine wave of amplitude around $1 imes 10^{-15} (erg ; s^{-1}cm^{-2}{AA}^{-1})$ in B, $0.6imes10^{-15}(erg ; s^{-1}cm^{-2}{AA}^{-1})$ in V, and $0.5imes10^{-15}(erg; s^{-1}cm^{-2}{AA}^{-1})$ in R, and with a period of $sim2000pm200$ days. Additionally, a linear combination of sine waves having periods of $sim113pm3$ days and $sim70pm5$ days also show a strong presence in the light curve, both with amplitudes of around $0.25pm0.03imes10^{-15}(erg; s^{-1}cm^{-2}{AA}^{-1})$ in V. These results are consistent with X-ray data and are qualitatively similar to the light curve found for NGC5548 (Bon et al, 2016). We lend these results as potentially bearing further evidence for the presence of a binary super-massive balck hole in Mrk 501.
机译:我们提供了ROVOR和WMO在Johnson B,V和R过滤器中针对2009-2016年Mrk501的数据。所有数据均使用半径为5“的孔径。所有框架中的恒星系均以光度法为参考。我们发现有力的证据表明,一条规则的光曲线与振幅约为1美元的正弦波匹配,即10 ^ {-15}( erg; s ^ {-1} cm ^ {-2} {AA} ^ {-1})$ in B,$ 0.6imes10 ^ {-15}(erg; s ^ {-1} cm ^ {-2} { V中的AA} ^ {-1})$和R中的$ 0.5imes10 ^ {-15}(erg; s ^ {-1} cm ^ {-2} {AA} ^ {-1})$此外,线性周期为sim113pm3 $天和$ sim70pm5 $天的正弦波的线性组合在光曲线中也显示出很强的强度,两者的振幅都在$ 0.25pm​​0.03imes10 ^ {- 15}(erg; s ^ {-1} cm ^ {-2} {AA} ^ {-1})$的V值。这些结果与X射线数据一致,并且在质量上与NGC5548的光曲线相似(Bon等人,2016年)。我们将这些结果借为可能进一步证明Mrk 501中存在二元超大质量黑洞的证据。

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