Optical Rebrightening of ASASSN-18ey = MAXI J1820+070
ATel #13014; J. Hambsch, J. Ulowetz, T. Vanmunster, D. Cejudo, J. Patterson (Center for Backyard Astrophysics)
on 10 Aug 2019; 23:17 UT
Credential Certification: Jules Halpern (jules@astro.columbia.edu)
Subjects: Optical, X-ray, Binary, Black Hole, Transient
After months near quiescence around V=18.3,
the X-ray transient ASASSN-18ey = MAXI J1820+070 (ATel #11423, #11756,
#12128, #12157, #12534) has brightened steadily to V=15.9 during the 12 days
prior to JD 2458703. We will continue our small-telescope nightly
time-series photometry for at least the next month. Such a rebrightening,
long after the 2018 main outburst of this black-hole X-ray nova, warrants
new coverage at all wavelengths.
Center for Backyard Astrophysics
