SMSS J130522.47-293113.0: a high-latitude stellar X-ray source with pc-scale outflow relics?
Da Costa, Gary; Soria, Roberto; Farrell, S. A.; Bayliss, Daniel; Bessell, Michael; Vogt, Frederic; Zhou, Guyin (George); Points, S. D.; Beers, Timothy C.; Lopez-Sanchez, A. R.; Bannister, Keith; Bell, M.; Hancock, Paul; Burlon, D.; Gaensler, B. M.; Sadler, Elaine M.; Tingay, S. J.; Keller, Stefan; Schmidt, Brian; Tisserand, Patrick
We report the discovery of an unusual stellar system SMSS J130522.47−293113.0. The optical spectrum is dominated by a blue continuum together with emission lines of hydrogen, neutral, and ionized helium, and the N III, C III blend at ∼4640–4650 Å. The emission-line profiles vary in strength and position on time-scales as short as 1 d, while optical photometry reveals fluctuations of as much as ∼0.2 mag in g on time-scales as short as 10–15 min. The system is a weak X-ray source (f0.3–10 = (1.2...[Show more]
|Collections||ANU Research Publications|
|Source:||Monthly Notices of the Royal Astronomical Society|
|Access Rights:||Open Access|
|01_Da+Costa_SMSS_J130522.47-293113.0%3A_a_2018.pdf||1.12 MB||Adobe PDF|