Spectroscopic observations of the interacting massive binary AQ\,Cassiopea
C. Ibanoglu, O. Cakirli, E. Sipahi

TL;DR
This paper presents spectroscopic and photometric analysis of the binary star AQ Cassiopeia, revealing details about its components, mass transfer effects, and distance, with implications for stellar evolution models.
Contribution
It provides new spectroscopic data and detailed modeling of AQ Cassiopeia, including the effects of mass transfer and stream distortion on observed light curves.
Findings
Primary star: 17.63 M☉, 13.48 R☉, spectral type B0.5 II-III
Secondary star: 12.56 M☉, 23.55 R☉, spectral type B3 II
System distance estimated at 4150±240 pc
Abstract
New spectroscopic observations of the double-lined eclipsing binary AQ\,Cas are presented. All available spectroscopic and photometric observations have been analysed for the fundamental properties of the components. Analyses show that the system consists of a massive primary with a mass of 17.630.91 M and radius of 13.480.64R and a secondary with 12.560.81 M and radius of 23.550.73 R, corresponding spectral types of B0.5(2) II-III + B3(1) II. The secondary star fills its corresponding Roche lobe and mass transfer to the primary star is going on. This stream considerably does affect the photometric observations both starting from the second quarter up to the first contact of primary eclipse and just at the second maximum. Thus, the light curve is distorted and tightly depended on the wavelength of the observations.…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
