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@article{65443,
author = {Powell, Brian P. and Rappaport, Saul A. and Borkovits, Tamas and Kostov, Veselin B. and Torres, Guillermo and Jayaraman, Rahul and Latham, David W. and Kučáková, Hana and Garai, Zoltan and Pribulla, Theodor and Vanderburg, Andrew and Kruse, Ethan and Barclay, Thomas and Olmschenk, Greg and Kristiansen, Martti H. K. and Gagliano, Robert and Jacobs, Thomas L. and LaCourse, Daryll M. and Omohundro, Mark and Schwengeler, Hans M. and Terentev, Ivan A. and Schmitt, Allan R.},
article_location = {GB - Spojené království Velké Británie a},
article_number = {2},
doi = {http://dx.doi.org/10.3847/1538-4357/ac8934},
keywords = {radial-velocities;stellar tracks;triple stars;binaries;isochrones;evolution},
language = {eng},
issn = {0004-637X},
journal = {Astrophysical Journal},
title = {TIC 114936199: A Quadruple Star System with a 12 Day Outer-orbit Eclipse},
url = {https://iopscience.iop.org/article/10.3847/1538-4357/ac8934},
volume = {938},
year = {2022}
}
TY - JOUR
ID - 65443
AU - Powell, Brian P. - Rappaport, Saul A. - Borkovits, Tamas - Kostov, Veselin B. - Torres, Guillermo - Jayaraman, Rahul - Latham, David W. - Kučáková, Hana - Garai, Zoltan - Pribulla, Theodor - Vanderburg, Andrew - Kruse, Ethan - Barclay, Thomas - Olmschenk, Greg - Kristiansen, Martti H. K. - Gagliano, Robert - Jacobs, Thomas L. - LaCourse, Daryll M. - Omohundro, Mark - Schwengeler, Hans M. - Terentev, Ivan A. - Schmitt, Allan R.
PY - 2022
TI - TIC 114936199: A Quadruple Star System with a 12 Day Outer-orbit Eclipse
JF - Astrophysical Journal
VL - 938
IS - 2
SP - "133-1"-"133-15"
EP - "133-1"-"133-15"
SN - 0004637X
KW - radial-velocities;stellar tracks;triple stars;binaries;isochrones;evolution
UR - https://iopscience.iop.org/article/10.3847/1538-4357/ac8934
N2 - We report the discovery with TESS of a remarkable quadruple star system with a 2+1+1 configuration. The two unique characteristics of this system are that (i) the inner eclipsing binary (stars Aa and Ab) eclipses the star in the outermost orbit (star C), and (ii) these outer fourth-body eclipses last for similar to 12 days, the longest of any such system known. The three orbital periods are similar to 3.3 days, similar to 51 days, and similar to 2100 days. The extremely long duration of the outer eclipses is due to the fact that star B slows binary A down on the sky relative to star C. We combine TESS photometric data, ground-based photometric observations, eclipse timing points, radial velocity measurements, the composite spectral energy distribution, and stellar isochrones in a spectrophotodynamical analysis to deduce all of the basic properties of the four stars (mass, radius, T (eff), and age), as well as the orbital parameters for all three orbits. The four masses are M (Aa) = 0.382 M (circle dot), M (Ab) = 0.300 M (circle dot), M (B) = 0.540 M (circle dot), and M (C) = 0.615 M (circle dot), with a typical uncertainty of 0.015 M (circle dot).
ER -
POWELL, Brian P., Saul A. RAPPAPORT, Tamas BORKOVITS, Veselin B. KOSTOV, Guillermo TORRES, Rahul JAYARAMAN, David W. LATHAM, Hana KUČÁKOVÁ, Zoltan GARAI, Theodor PRIBULLA, Andrew VANDERBURG, Ethan KRUSE, Thomas BARCLAY, Greg OLMSCHENK, Martti H. K. KRISTIANSEN, Robert GAGLIANO, Thomas L. JACOBS, Daryll M. LACOURSE, Mark OMOHUNDRO, Hans M. SCHWENGELER, Ivan A. TERENTEV and Allan R. SCHMITT. TIC 114936199: A Quadruple Star System with a 12 Day Outer-orbit Eclipse. \textit{Astrophysical Journal}. GB - Spojené království Velké Británie a, 2022, vol.~938, No~2, p.~''133-1''-''133-15'', 15 pp. ISSN~0004-637X. Available from: https://dx.doi.org/10.3847/1538-4357/ac8934.
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