%0 Journal Article
%T X-ray emission in the enigmatic CVSO 30 system
%A J. H. M. M. Schmitt
%A M. Salz
%A P. C. Schneider
%A S. Czesla
%A T. Klocov¨¢
%A T. O. B. Schmidt
%J -
%D 2019
%R 10.1051/0004-6361/201935351
%X CVSO 30 is a young, active, weak-line T Tauri star; it possibly hosts the only known planetary system with both a transiting hot-Jupiter and a cold-Jupiter candidate (CVSO 30 b and CVSO 30 c). We analyzed archival ROSAT, <i>Chandra<i/>, and <i>XMM-Newton<i/> data to study the coronal emission in the system. According to our modeling, CVSO 30 shows a quiescent X-ray luminosity of ¡Ö8£¿¡Á£¿10<sup>29<sup/> erg s<sup>£¿1<sup/>. The X-ray absorbing column is consistent with interstellar absorption. <i>XMM-Newton<i/> observed a flare, during which a transit of the candidate CVSO 30 b was expected, but no significant transit-induced variation in the X-ray flux is detectable. While the hot-Jupiter candidate CVSO 30 b has continuously been undergoing mass loss powered by the high-energy irradiation, we conclude that its evaporation lifetime is considerably longer than the estimated stellar age of 2.6 Myr
%U https://www.aanda.org/articles/aa/full_html/2019/09/aa35351-19/aa35351-19.html