X-ray emission in the enigmatic CVSO 30 system
作者： S. Czesla , M. Salz , T. Klocova , J. H. M. M. Schmitt , P.C. Schneider
DOI: 10.1051/0004-6361/201935351
关键词: Planetary system 、 Transit (astronomy) 、 T Tauri star 、 Flare 、 ROSAT 、 Physics 、 Astrophysics 、 Flux 、 Luminosity 、 X-ray
摘要: CVSO 30 is a young, active, weak-line T Tauri star; it possibly hosts the only known planetary system with both transiting hot-Jupiter and cold-Jupiter candidate (CVSO b c). We analyzed archival ROSAT, Chandra, XMM-Newton data to study coronal emission in system. According our modeling, shows quiescent X-ray luminosity of about 8e29 erg/s. The absorbing column consistent interstellar absorption. observed flare, during which transit was expected, but no significant transit-induced variation flux detectable. While has continuously been undergoing mass loss powered by high-energy irradiation, we conclude that its evaporation lifetime considerably longer than estimated stellar age 2.6 Myr.
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