2021MNRAS.500.4972R

Query : 2021MNRAS.500.4972R

2021MNRAS.500.4972R - Mon. Not. R. Astron. Soc., 500, 4972-4988 (2021/February-1)

Orbital and physical parameters of eclipsing binaries from the ASAS catalogue - XI. CHIRON investigation of long-period binaries.

RATAJCZAK M., PAWLASZEK R.K., HELMINIAK K.G., KONACKI M., SYBILSKI P., KOZLOWSKI S.K., LITWICKI M., SMITH A.M.S., MIKOLAJCZYK P., ANDERSON D.R. and HELLIER C.

Abstract (from CDS):

We present the results of a spectroscopic campaign on eclipsing binaries with long orbital period (P = 20-75 d) carried out with the CHIRON spectrograph. Physical and orbital solutions for seven systems were derived from the V band, and I band ASAS, WASP, and TESS photometry, while radial velocities were calculated from high-quality optical spectra using a two-dimensional cross-correlation technique. The atmospheric parameters of the stars have been determined from the separated spectra. Most of our targets are composed of evolved stars (subgiants or red giants) but two systems show components in different phases of evolution and one possible merger. For four binaries, the masses and radii of the components were obtained with precision better than 3 per cent. These objects provide very valuable information on stellar evolution.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): binaries: eclipsing - binaries: spectroscopic - stars: fundamental parameters

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 11

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Number of rows : 11
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 V* AI Phe SB* 01 09 34.1924055096 -46 15 56.071719360   9.26 8.60     F7V+K0IV 157 0
2 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
3 V* TZ For SB* 03 14 40.0925678952 -35 33 27.594929088   7.620 6.878     F7III+G8III 144 0
4 * alf Aur SB* 05 16 41.35871 +45 59 52.7693 1.33 0.88 0.08 -0.52 -0.96 G3III: 1207 0
5 CPD-54 810 EB* 05 17 52.9504680648 -54 06 05.381200476   10.90 10.51     ~ 14 0
6 V* V643 Ori SB* 06 07 00.9147371136 -02 54 57.789984636   10.70 9.40 9.55 8.48 G2 25 0
7 CD-33 2771 EB* 06 10 16.4805141888 -33 21 20.892685608   11.34 9.86     K5III+K5V 9 0
8 ASAS J062926-2513.5 SB* 06 29 26.3652056904 -25 13 29.443964304   12.03 11.37     ~ 7 0
9 HD 265111 EB* 06 51 14.4511660656 +07 53 57.457713876   10.75 9.54   8.104 K0 7 0
10 ASAS J090232-5653.4 EB* 09 02 31.6436903976 -56 53 22.421511204   10.96 10.50     ~ 7 0
11 ASAS J110814-5555.4 EB* 11 08 13.3137028488 -55 55 21.500986908   11.52 10.49     ~ 2 0

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