SIMBAD references

2013A&A...549A..86L - Astronomy and Astrophysics, volume 549A, 86-86 (2013/1-1)

Period and period change measurements for 143 SuperWASP eclipsing binary candidates near the short-period limit and discovery of a doubly eclipsing quadruple system.

LOHR M.E., NORTON A.J., KOLB U.C., MAXTED P.F.L., TODD I. and WEST R.G.

Abstract (from CDS):

Building on previous work, a new search of the SuperWASP archive was carried out to identify eclipsing binary systems near the short-period limit. 143 candidate objects were detected with orbital periods between 16000 and 20000s, of which 97 are new discoveries. Period changes significant at 1σ or more were detected in 74 of these objects, and in 38 the changes were significant at 3σ or more. The significant period changes observed followed an approximately normal distribution with a half-width at half-maximum of ∼0.1s/yr. There was no apparent relationship between period length and magnitude or direction of period change. Amongst several interesting individual objects studied, 1SWASP J093010.78+533859.5 is presented as a new doubly eclipsing quadruple system, consisting of a contact binary with a 19674.575s period and an Algol-type binary with a 112799.109 s period, separated by 66.1AU, being the sixth known system of this type.

Abstract Copyright:

Journal keyword(s): binaries: close - binaries: eclipsing - stars: variables: general

VizieR on-line data: <Available at CDS (J/A+A/549/A86): table1.dat>

CDS comments: Paragraph 4.5 : OGLE-LMC-ECL-16545 is a misprint for OGLE LMC-ECL-16549.

Simbad objects: 155

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2022.07.01-07:04:54

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