Issue |
A&A
Volume 522, November 2010
|
|
---|---|---|
Article Number | A37 | |
Number of page(s) | 6 | |
Section | Stellar structure and evolution | |
DOI | https://doi.org/10.1051/0004-6361/201014059 | |
Published online | 28 October 2010 |
MML 53: a new low-mass, pre-main sequence eclipsing binary in the Upper Centaurus-Lupus region discovered by SuperWASP
1
School of Physics and Astronomy, University of St Andrews,
North Haugh,
St Andrews
KY16 9SS,
UK
2
Department of Physics & Astronomy, Vanderbilt
University, Nashville, TN
37235,
USA
e-mail: leslie.hebb@vanderbilt.edu
3
Department of Physics & Astronomy,
Box 516,
751 20
Uppsala,
Sweden
4
Department of Physics, University of Oxford,
Keble Road, Oxford
OX1 3RH,
UK
5
Institute of Astronomy, Cambridge University,
Madingley Road,
Cambridge
CB3 0HA,
UK
6
Harvard-Smithsonian Center for Astrophysics,
60 Garden Street,
Cambridge,
MA
02138,
USA
7
Astrophysics Group, Keele University,
Staffordshire
ST5 5BG,
UK
8
Astrophysics Research Centre, School of Mathematics &
Physics, Queen’s University, University Road,
Belfast
BT7 1NN,
UK
9
Las Cumbres Observatory, 6740 Cortona Dr. Suite 102,
Santa Barbara,
CA
93117,
USA
10
Center for Astrophysics & Planetary Science,
University of Kent,
Canterbury
CT2 7NH,
UK
11
Department of Physics, Fisk University,
1000 N. 17th Ave, Nashville,
TN
37208,
USA
Received:
13
January
2010
Accepted:
10
August
2010
We announce the discovery of a new low-mass, pre-main sequence eclipsing binary, MML 53. Previous observations of MML 53 found it to be a pre-main sequence spectroscopic multiple associated with the 15–22 Myr Upper Centaurus-Lupus cluster. We identify the object as an eclipsing binary for the first time through the analysis of multiple seasons of time series photometry from the SuperWASP transiting planet survey. Re-analysis of a single archive spectrum shows MML 53 to be a spatially unresolved triple system of young stars which all exhibit significant lithium absorption. Two of the components comprise an eclipsing binary with period, P = 2.097891(6) ± 0.000005 and mass ratio, q ~ 0.8. Here, we present the analysis of the discovery data.
Key words: binaries: eclipsing / stars: pre-main sequence / stars: fundamental parameters
© ESO, 2010
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.