2019AJ....158..218L


Query : 2019AJ....158..218L

2019AJ....158..218L - Astron. J., 158, 218-218 (2019/December-0)

Visual orbits of spectroscopic binaries with the CHARA Array. II. The eclipsing binary HD 185912.

LESTER K.V., GIES D.R., SCHAEFER G.H., FARRINGTON C.D., GUO Z., MATSON R.A., MONNIER J.D., TEN BRUMMELAAR T., STURMANN J., VARGAS N. and WEISS S.A.

Abstract (from CDS):

We present the visual orbit of the double-lined eclipsing binary, HD 185912, from long baseline interferometry with the CHARA Array. We also obtain echelle spectra from the Apache Point observatory to update the spectroscopic orbital solution and analyze new photometry from Burggraaff et al. to model the eclipses. By combining the spectroscopic and visual orbital solutions, we find component masses of M1 = 1.361 ± 0.004 M☉ and M2 = 1.331 ± 0.004 M☉, and a distance of d = 40.75 ± 0.30 pc from orbital parallax. From the light-curve solution, we find component radii of R1 = 1.348 ± 0.016 R☉ and R2 = 1.322 ± 0.016 R☉. By comparing these observed parameters to stellar evolution models, we find that HD 185912 is a young system near the zero age main sequence with an estimated age of 500 Myr.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): Binary stars - Eclipsing binary stars - Interferometric binary stars - Spectroscopic binary stars - Fundamental parameters of stars

Simbad objects: 6

goto Full paper

goto View the references in ADS

Number of rows : 6
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 * 51 Dra * 19 04 55.1654401944 +53 23 47.960875608   5.37 5.38     A0Vn 60 0
2 HD 184170 PM* 19 30 12.2479939728 +55 25 21.759090600   7.85 6.89     K0 18 0
3 V* V1143 Cyg SB* 19 38 41.1829269072 +54 58 25.647010572       5.6   F6Va 229 0
4 HD 186760 PM* 19 43 14.4186159816 +58 00 59.821870032   6.871 6.295     G0V 79 0
5 HD 187748 PM* 19 48 15.4484802048 +59 25 22.446445188   7.22 6.64     G0 51 0
6 V* V1022 Cas SB* 23 57 08.4720606576 +55 42 20.539344420   6.033 5.561     F6V 80 0

To bookmark this query, right click on this link: simbad:objects in 2019AJ....158..218L and select 'bookmark this link' or equivalent in the popup menu