The first eclipsing binary catalogue from the MOA-II data base

Author:

Li M. C. A.1,Rattenbury N. J.1,Bond I. A.2,Sumi T.3,Bennett D. P.4,Koshimoto N.3,Abe F.5,Asakura Y.5,Barry R.6,Bhattacharya A.4,Donachie M.1,Evans P.1,Freeman M.7,Fukui A.8,Hirao Y.3,Itow Y.5,Ling C. H.2,Masuda  K.5,Matsubara Y.5,Muraki Y.5,Nagakane M.3,Ohnishi  K.9,Saito To.10,Sharan A.1,Sullivan D. J.11,Suzuki D.4,Tristram P. J.12,Yonehara A.13

Affiliation:

1. Department of Physics, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand

2. Institute of Natural and Mathematical Sciences, Massey University, Private Bag 102-904, North Shore Mail Centre, Auckland 0745, New Zealand

3. Department of Earth and Space Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan

4. Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA

5. Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya 464-8601, Japan

6. Astrophysics Science Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA

7. School of Physics, The University of New South Wales, Sydney, NSW 2052, Australia

8. Okayama Astrophysical Observatory, National Astronomical Observatory, 3037-5 Honjo, Kamogata, Asakuchi, Okayama 719-0232, Japan

9. Nagano National College of Technology, Nagano 381-8550, Japan

10. Tokyo Metropolitan College of Industrial Technology, Tokyo 116-8523, Japan

11. School of Chemical and Physical Sciences, Victoria University, Wellington, New Zealand

12. Mount John Observatory, University of Canterbury, PO Box 56, Lake Tekapo 8770, New Zealand

13. Department of Physics, Faculty of Science, Kyoto Sangyo University, 603-8555 Kyoto, Japan

Abstract

Abstract We present the first catalogue of eclipsing binaries in two MOA (Microlensing Observations in Astrophysics) fields towards the Galactic bulge, in which over 8000 candidates, mostly contact and semidetached binaries of periods <1 d, were identified. In this paper, the light curves of a small number of interesting candidates, including eccentric binaries, binaries with noteworthy phase modulations and eclipsing RS Canum Venaticorum type stars, are shown as examples. In addition, we identified three triple object candidates by detecting the light-travel-time effect in their eclipse time variation curves.

Funder

JSPS

Royal Society of New Zealand

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

Cited by 5 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Asteroid Lightcurves from the MOA-II Survey: a pilot study;Monthly Notices of the Royal Astronomical Society;2022-03-12

2. Eclipsing Binaries in Dynamically Interacting Close, Multiple Systems;Galaxies;2022-01-06

3. Photometric light curve solutions of three ultra-short period eclipsing binaries;Research in Astronomy and Astrophysics;2020-04-01

4. A study of the light travel time effect in short-period MOA eclipsing binaries via eclipse timing;Monthly Notices of the Royal Astronomical Society;2018-08-24

5. KMTNet Time-series Photometry of the Doubly Eclipsing Binary Stars Located in the Large Magellanic Cloud;Publications of the Astronomical Society of the Pacific;2018-04-02

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