TCP J07222683+6220548: A New AM CVn Type System with Infrequent Outbursts
Sign Up to like & getrecommendations! Published in 2025 at "Research in Astronomy and Astrophysics"
DOI: 10.1088/1674-4527/adddec
Abstract: We present the discovery of TCP J07222683+6220548, a new ultracompact binary system of the AM CVn type. This system was first identified displaying a ΔV = 7.6 mag outburst on 2025-01-20.9416 UTC by the New… read more here.
Keywords: system; 6220548 new; tcp j07222683; j07222683 6220548 ... See more keywords
Empirical instability strip for pre-He WD in EL CVn type binary systems
Sign Up to like & getrecommendations! Published in 2024 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stae1948
Abstract: We present the Transiting Exoplanet Survey Satellite (TESS) photometry and high-resolution spectra of the EL CVn-type systems, which consists of an A/F-type main-sequence (MS) star and a hotter low-mass helium white dwarf precursor (pre-He WD). In… read more here.
Keywords: pre; type; instability strip; empirical instability ... See more keywords
Star-spot distributions and chromospheric activity on the RS CVn type eclipsing binary SV Cam
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DOI: 10.1093/mnras/sty1469
Abstract: Using a time series of high-resolution spectra and high-quality multicolour photometry, we reconstruct surface maps of the primary component of the RS CVn type rapidly rotating eclipsing binary, SV Cam (F9V + K4V). We measure… read more here.
Keywords: cvn type; eclipsing binary; binary cam;