Intra-day variability of BL Lacertae from 2016 to 2018-Reference-Cited by-同舟云学术

Intra-day variability of BL Lacertae from 2016 to 2018

Published:2021-11-01 Issue:10 Volume:21 Page:259
ISSN:1674-4527
Container-title:Research in Astronomy and Astrophysics
language:
Short-container-title:Res. Astron. Astrophys.

Author:

Li Tian,Wu Jiang-Hua,Meng Nan-Kun,Dai Yan,Zhang Xiao-Yuan

Abstract

Abstract We monitored BL Lacertae in the B, V, R and I bands for 14 nights during the period of 2016–2018. The source showed significant intra-day variability on 12 nights. We performed color-magnitude analysis and found that the source exhibited bluer-when-brighter chromatism. This bluer-when-brighter behavior is at least partly caused by the larger variation amplitude at shorter wavelengths. The variations at different wavelengths are correlated well and show no inter-band time lag.

Publisher

IOP Publishing

Subject

Space and Planetary Science,Astronomy and Astrophysics

Link

https://iopscience.iop.org/article/10.1088/1674-4527/21/10/259/pdf

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