2001A&A...370.1026L

Query : 2001A&A...370.1026L

2001A&A...370.1026L - Astronomy and Astrophysics, volume 370, 1026-1029 (2001/5-2)

Research Note. The evolutionary status of the early-type binary HD 115071.

LLOYD C. and STICKLAND D.J.

Abstract (from CDS):

An analysis of the Hipparcos photometry of HD 115071 shows that it is an ellipsoidal variable with a period of 2.73126 days, twice that suggested previously. Modelling the light curve combined with the available radial velocities suggests that the more massive, hotter component is smaller and less luminous than the cooler component, which is probably filling its Roche lobe. The likely age of the system indicates that it is a MS + MS blue straggler, created by Case A mass exchange.

Abstract Copyright: ∼

Journal keyword(s): stars: binaries: spectroscopic - stars: blue stragglers - stars: early-type - stars: evolution - stars: variable: general

CDS comments: HIP 65747 misprint for HIP 64737 = HD 115071.

Simbad objects: 9

Full paper

View the references in ADS

Number of rows : 9

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Sp type	#ref 1850 - 2023	#notes
1	HD 57682	*	07 22 02.0546074728	-08 58 45.766323408	5.20	6.24	6.43		O9.2IV	251	0
2	HD 91824	SB*	10 34 46.6322493936	-58 09 22.038466896	7.17	8.11	8.14	9.02	O7V((f))z	151	0
3	Ass Cen OB 1	As*	13 02	-61.4					~	106	0
4	NAME Cen R1	As*	13 08	-63.0					~	11	1
5	HD 114886	**	13 14 44.38260	-63 34 51.8077	6.15	6.98	6.89	7.76	O9-B0V	105	0
6	V* V961 Cen	SB*	13 16 04.8010592232	-62 35 01.490795556	7.51	9.16	9.32	8.82	O9.5III+B0Ib	103	1
7	HD 115455	SB*	13 18 35.3592390638	-62 29 28.407889555	7.40	8.17	7.97	8.81	O8III((f))	103	1
8	Cl Stock 16	OpC	13 19 26.4	-62 37 19					~	90	0
9	GUM 48a	HII	13 19 46	-62 30.7					~	29	1

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