TY - JOUR

T1 - Spectral observations of e{open} aurigae during the 2009-2011 eclipse

AU - Potravnov, I.S.

AU - Grinin, V.P.

PY - 2013

Y1 - 2013

N2 - Results of spectral observations of the unique eclipsing binary e{open} Aur obtained during its recent eclipse are presented. Profile variations of many spectral lines at different eclipse phases can be traced. These variations are partly due to absorption of the stellar radiation in a rotating disk of gas and dust around the second component and partly due to geometric screening of the stellar photosphere and circumstellar region by the disk. A comparison of these results with analogous results obtained by Lambert and Sawyer during the previous (1982-1984) eclipse of e{open} Aur indicates good agreement, suggesting stability of the gas-dust disk surrounding the invisible component in the binary. The masses of the binary components are estimated using new observational data. © 2013 Pleiades Publishing, Ltd.

AB - Results of spectral observations of the unique eclipsing binary e{open} Aur obtained during its recent eclipse are presented. Profile variations of many spectral lines at different eclipse phases can be traced. These variations are partly due to absorption of the stellar radiation in a rotating disk of gas and dust around the second component and partly due to geometric screening of the stellar photosphere and circumstellar region by the disk. A comparison of these results with analogous results obtained by Lambert and Sawyer during the previous (1982-1984) eclipse of e{open} Aur indicates good agreement, suggesting stability of the gas-dust disk surrounding the invisible component in the binary. The masses of the binary components are estimated using new observational data. © 2013 Pleiades Publishing, Ltd.

U2 - 10.1134/S1063772914010041

DO - 10.1134/S1063772914010041

M3 - Article

SP - 991

EP - 1000

JO - Astronomy Reports

JF - Astronomy Reports

SN - 1063-7729

IS - 12

ER -