SIMBAD references

2021RAA....21..259L - Research in Astron. and astroph., 21, 259 (2021/October-0)

Intra-day variability of BL Lacertae from 2016 to 2018.

LI T., WU J.-H., MENG N.-K., DAI Y. and ZHANG X.-Y.

Abstract (from CDS):

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.

Abstract Copyright: © 2021 National Astronomical Observatories

Journal keyword(s): galaxies: active - BL Lacertae objects: individual: BL Lacertae - galaxies: photometry

CDS comments: Fig.1 stars not identified.

Simbad objects: 2

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