Abstract
| Original language | English |
|---|---|
| Journal | Monthly Notices of the Royal Astronomical Society |
| Volume | 483 |
| Issue number | 2 |
| Pages (from-to) | 1934–1951 |
| ISSN | 0035-8711 |
| DOIs | |
| Publication status | Published - 2019 |
Bibliographical note
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2018 The Author(s)Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.Keywords
- Binaries: close
- Binaries: eclipsing
- Stars: individual: EPIC 249432662
Cite this
}
Photodynamical analysis of the triply eclipsing hierarchical triple system EPIC 249432662. / Borkovits, T.; Rappaport, S.; Kaye, T.; Isaacson, H.; Vanderburg, A.; Howard, A. W.; Kristiansen, M. H.; Omohundro, M. R.; Schwengeler, H. M.; Terentev, I. A.; Shporer, A.; Relles, H.; Villanueva, S.; Tan, T. G.; Colón, K. D.; Blex, J.; Haas, M.; Cochran, W.; Endl, M.
In: Monthly Notices of the Royal Astronomical Society, Vol. 483, No. 2, 2019, p. 1934–1951.Research output: Contribution to journal › Journal article › Research › peer-review
TY - JOUR
T1 - Photodynamical analysis of the triply eclipsing hierarchical triple system EPIC 249432662
AU - Borkovits, T.
AU - Rappaport, S.
AU - Kaye, T.
AU - Isaacson, H.
AU - Vanderburg, A.
AU - Howard, A. W.
AU - Kristiansen, M. H.
AU - Omohundro, M. R.
AU - Schwengeler, H. M.
AU - Terentev, I. A.
AU - Shporer, A.
AU - Relles, H.
AU - Villanueva, S.
AU - Tan, T. G.
AU - Colón, K. D.
AU - Blex, J.
AU - Haas, M.
AU - Cochran, W.
AU - Endl, M.
N1 - This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2018 The Author(s)Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
PY - 2019
Y1 - 2019
N2 - Using Campaign 15 data from the K2 mission, we have discovered a triply-eclipsing triple star system: EPIC 249432662. The inner eclipsing binary system has a period of 8.23 days, with shallow ∼3% eclipses. During the entire 80-day campaign, there is also a single eclipse event of a third-body in the system that reaches a depth of nearly 50% and has a total duration of 1.7 days, longer than for any previously known third-body eclipse involving unevolved stars. The binary eclipses exhibit clear eclipse timing variations. A combination of photodynamical modeling of the lightcurve, as well as seven follow-up radial velocity measurements, has led to a prediction of the subsequent eclipses of the third star with a period of 188 days. A campaign of follow-up ground-based photometry was able to capture the subsequent pair of third-body events as well as two further 8-day eclipses. A combined photo-spectro-dynamical analysis then leads to the determination of many of the system parameters. The 8-day binary consists of a pair of M stars, while most of the system light is from a K star around which the pair of M stars orbits.
AB - Using Campaign 15 data from the K2 mission, we have discovered a triply-eclipsing triple star system: EPIC 249432662. The inner eclipsing binary system has a period of 8.23 days, with shallow ∼3% eclipses. During the entire 80-day campaign, there is also a single eclipse event of a third-body in the system that reaches a depth of nearly 50% and has a total duration of 1.7 days, longer than for any previously known third-body eclipse involving unevolved stars. The binary eclipses exhibit clear eclipse timing variations. A combination of photodynamical modeling of the lightcurve, as well as seven follow-up radial velocity measurements, has led to a prediction of the subsequent eclipses of the third star with a period of 188 days. A campaign of follow-up ground-based photometry was able to capture the subsequent pair of third-body events as well as two further 8-day eclipses. A combined photo-spectro-dynamical analysis then leads to the determination of many of the system parameters. The 8-day binary consists of a pair of M stars, while most of the system light is from a K star around which the pair of M stars orbits.
KW - Binaries: close
KW - Binaries: eclipsing
KW - Stars: individual: EPIC 249432662
U2 - 10.1093/mnras/sty3157
DO - 10.1093/mnras/sty3157
M3 - Journal article
VL - 483
SP - 1934
EP - 1951
JO - Royal Astronomical Society. Monthly Notices
JF - Royal Astronomical Society. Monthly Notices
SN - 0035-8711
IS - 2
ER -