[vsnet-alert 24273] SDSS J124058.03-015919.2 (AM CVn star): rebrightening

Thu May 14 00:28:06 JST 2020

SDSS J124058.03-015919.2  ("helium dwarf nova")
https://www.aavso.org/vsx/index.php?view=detail.top&oid=132563

Recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S
and Kochanek et al. 2017PASP..129j4502K) light curve and data:
https://asas-sn.osu.edu/light_curves/c5ee9c78-644b-4df0-aa3a-376ead18ad2b
SDSSJ124058.03-015919.2 20200423.372 <17.39g ASN
SDSSJ124058.03-015919.2 20200429.250  14.34g ASN
SDSSJ124058.03-015919.2 20200502.379  14.09g ASN
SDSSJ124058.03-015919.2 20200509.716 <17.33g ASN
SDSSJ124058.03-015919.2 20200511.300 <16.02g ASN
SDSSJ124058.03-015919.2 20200513.388  14.53g ASN

ZTF light curve:
https://lasair.roe.ac.uk/object/ZTF18acyerom/

Double superoutburst? Time-resolved photometry is required.

Clear skies,
Patrick