OGLE-LMC-ECL-11893: the discovery of a long-period eclipsing binary with a circumstellar disk

S. Dong; B. Katz; J.L. Prieto; A. Udalski; S. Kozlowski; R.A. Street; D.M. Bramich; Y. Tsapras; M. Hundertmark; C. Snodgrass; K. Horne; M. Dominik; Roberto Jose Figuera Jaimes

doi:10.1088/0004-637X/788/1/41

OGLE-LMC-ECL-11893: the discovery of a long-period eclipsing binary with a circumstellar disk

S. Dong
, B. Katz
, J.L. Prieto
, A. Udalski
, S. Kozlowski
, R.A. Street
, D.M. Bramich
, Y. Tsapras
, M. Hundertmark
, C. Snodgrass
, K. Horne
, M. Dominik
, Roberto Jose Figuera Jaimes

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We report the serendipitous discovery of a disk-eclipse system OGLE-LMC-ECL-11893. The eclipse occurs with a period of 468 days, a duration of about 15 days, and a deep (up to Δm_I 1.5), peculiar, and asymmetric profile. A possible origin of such an eclipse profile involves a circumstellar disk. The presence of the disk is confirmed by the H-α line profile from the follow-up spectroscopic observations, and the star is identified as Be/Ae type. Unlike the previously known disk-eclipse candidates, the eclipses of OGLE-LMC-ECL-11893 retain the same shape throughout the span of ∼17 yr (13 orbital periods), indicating no measurable orbital precession of the disk.

Original language	English
Number of pages	4
Journal	Astrophysical Journal
Volume	788
Issue number	1
Early online date	20 May 2014
DOIs	https://doi.org/10.1088/0004-637X/788/1/41
Publication status	Published - 10 Jun 2014

Keywords

Binaries: eclipsing
Circumstellar matter
Stars: individual (OGLE-LMC-ECL-11893)
Stars: variables: T Tauri
Herbig Ae/Be

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10.1088/0004-637X/788/1/41

Hundertmark_2014_TAJ_OGLE
© 2014. The American Astronomical Society. All rights reserved.
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Planet population statistics: Planet population statistics from fully-deterministic microlensing campaigns
Dominik, M. (PI)
The Royal Society
1/10/11 → 30/09/15
Project: Fellowship
Astrophysics at St Andrews:2012 - 2014: Astrophysics at St Andrews: 2012 - 2014
Horne, K. (PI)
Science & Technology Facilities Council
1/10/11 → 31/03/12
Project: Standard

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@article{18fc045204b04832aac428d0ce3cb07b,

title = "OGLE-LMC-ECL-11893: the discovery of a long-period eclipsing binary with a circumstellar disk",

abstract = "We report the serendipitous discovery of a disk-eclipse system OGLE-LMC-ECL-11893. The eclipse occurs with a period of 468 days, a duration of about 15 days, and a deep (up to ΔmI 1.5), peculiar, and asymmetric profile. A possible origin of such an eclipse profile involves a circumstellar disk. The presence of the disk is confirmed by the H-α line profile from the follow-up spectroscopic observations, and the star is identified as Be/Ae type. Unlike the previously known disk-eclipse candidates, the eclipses of OGLE-LMC-ECL-11893 retain the same shape throughout the span of ∼17 yr (13 orbital periods), indicating no measurable orbital precession of the disk.",

keywords = "Binaries: eclipsing, Circumstellar matter, Stars: individual (OGLE-LMC-ECL-11893), Stars: variables: T Tauri , Herbig Ae/Be",

author = "S. Dong and B. Katz and J.L. Prieto and A. Udalski and S. Kozlowski and R.A. Street and D.M. Bramich and Y. Tsapras and M. Hundertmark and C. Snodgrass and K. Horne and M. Dominik and \{Figuera Jaimes\}, \{Roberto Jose\}",

note = "S.D. is supported by {"}the Strategic Priority Research Program-The Emergence of Cosmological Structures{"} of the Chinese Academy of Sciences (grant No. XDB09000000). The OGLE project has received funding from the European Research Council under the European Community's Seventh Framework Programme (FP7/20072013)/ERC grant agreement No. 246678 to A.U. M.D., R.F.J., K.H., R.A.S., C.S., and Y.T. are supported by NPRP grant NPRP-09-476-1-78 from the Qatar National Research Fund (a member of Qatar Foundation). D.M.B.'s contribution to this publication was made possible by NPRP grant \# X-019-1-006 from the Qatar National Research Fund (a member of Qatar Foundation). C.S. has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement No. 268421.",

year = "2014",

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doi = "10.1088/0004-637X/788/1/41",

language = "English",

volume = "788",

journal = "Astrophysical Journal",

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publisher = "American Astronomical Society",

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TY - JOUR

T1 - OGLE-LMC-ECL-11893

T2 - the discovery of a long-period eclipsing binary with a circumstellar disk

AU - Dong, S.

AU - Katz, B.

AU - Prieto, J.L.

AU - Udalski, A.

AU - Kozlowski, S.

AU - Street, R.A.

AU - Bramich, D.M.

AU - Tsapras, Y.

AU - Hundertmark, M.

AU - Snodgrass, C.

AU - Horne, K.

AU - Dominik, M.

AU - Figuera Jaimes, Roberto Jose

N1 - S.D. is supported by "the Strategic Priority Research Program-The Emergence of Cosmological Structures" of the Chinese Academy of Sciences (grant No. XDB09000000). The OGLE project has received funding from the European Research Council under the European Community's Seventh Framework Programme (FP7/20072013)/ERC grant agreement No. 246678 to A.U. M.D., R.F.J., K.H., R.A.S., C.S., and Y.T. are supported by NPRP grant NPRP-09-476-1-78 from the Qatar National Research Fund (a member of Qatar Foundation). D.M.B.'s contribution to this publication was made possible by NPRP grant # X-019-1-006 from the Qatar National Research Fund (a member of Qatar Foundation). C.S. has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement No. 268421.

PY - 2014/6/10

Y1 - 2014/6/10

N2 - We report the serendipitous discovery of a disk-eclipse system OGLE-LMC-ECL-11893. The eclipse occurs with a period of 468 days, a duration of about 15 days, and a deep (up to ΔmI 1.5), peculiar, and asymmetric profile. A possible origin of such an eclipse profile involves a circumstellar disk. The presence of the disk is confirmed by the H-α line profile from the follow-up spectroscopic observations, and the star is identified as Be/Ae type. Unlike the previously known disk-eclipse candidates, the eclipses of OGLE-LMC-ECL-11893 retain the same shape throughout the span of ∼17 yr (13 orbital periods), indicating no measurable orbital precession of the disk.

AB - We report the serendipitous discovery of a disk-eclipse system OGLE-LMC-ECL-11893. The eclipse occurs with a period of 468 days, a duration of about 15 days, and a deep (up to ΔmI 1.5), peculiar, and asymmetric profile. A possible origin of such an eclipse profile involves a circumstellar disk. The presence of the disk is confirmed by the H-α line profile from the follow-up spectroscopic observations, and the star is identified as Be/Ae type. Unlike the previously known disk-eclipse candidates, the eclipses of OGLE-LMC-ECL-11893 retain the same shape throughout the span of ∼17 yr (13 orbital periods), indicating no measurable orbital precession of the disk.

KW - Binaries: eclipsing

KW - Circumstellar matter

KW - Stars: individual (OGLE-LMC-ECL-11893)

KW - Stars: variables: T Tauri

KW - Herbig Ae/Be

U2 - 10.1088/0004-637X/788/1/41

DO - 10.1088/0004-637X/788/1/41

M3 - Article

AN - SCOPUS:84901789740

SN - 0004-637X

VL - 788

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

ER -

OGLE-LMC-ECL-11893: the discovery of a long-period eclipsing binary with a circumstellar disk

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Keywords

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Planet population statistics: Planet population statistics from fully-deterministic microlensing campaigns

Astrophysics at St Andrews:2012 - 2014: Astrophysics at St Andrews: 2012 - 2014

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