Variability of CHXR 20: accretion, extinction, spots or a companion?

Taisiya G. Kopytova, Viki Joergens, Aurora Sicilia-Aguilar, Maria V. Rodríguez-Ledesma, Reinhard Mundt

Research output: Contribution to journalArticlepeer-review


We study the photometric variability of a pre-main sequence star (K6, 0.9M?) CHXR 20. We test several scenarios for the variability including variable accretion, variable extinction, cool and hot spots on the stellar surface and the presence of a potential companion.
Original languageEnglish
Pages (from-to)216-217
Number of pages2
JournalProceedings of the International Astronomical Union
Issue number299
Publication statusPublished - 6 Jan 2014


  • stars: activity stars: pre-main sequence stars: spots stars: planetary systems: protoplanetary disks


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