TY - JOUR
T1 - Six new compact triply eclipsing triples found with TESS
AU - Rappaport, S. A.
AU - Borkovits, T.
AU - Gagliano, R.
AU - Jacobs, T. L.
AU - Kostov, V. B.
AU - Powell, B. P.
AU - Terentev, I.
AU - Omohundro, M.
AU - Torres, G.
AU - Vanderburg, A.
AU - Mitnyan, T.
AU - Kristiansen, M. H.
AU - Lacourse, D.
AU - Schwengeler, H. M.
AU - Kaye, T. G.
AU - Pál, A.
AU - Pribulla, T.
AU - Bíró, I. B.
AU - Csányi, I.
AU - Garai, Z.
AU - Zasche, P.
AU - Maxted, P. F.L.
AU - Rodriguez, J. E.
AU - Stevens, D. J.
N1 - Publisher Copyright:
© 2022 The Author(s)
PY - 2022
Y1 - 2022
N2 - In this work, we report the discovery and analysis of six new compact triply eclipsing triple star systems found with the TESS
mission: TICs 37743815, 42565581, 54060695, 178010808, 242132789, and
456194776. All of these exhibit distinct third-body eclipses where the
inner eclipsing binary (EB) occults the third (‘tertiary’) star, or vice
versa. We utilized the TESS photometry, archival photometric
data, and available archival spectral energy distribution curves (SED)
to solve for the properties of all three stars, as well as many of the
orbital elements. We describe in detail our SED fits, search of the
archival data for the outer orbital period, and the final global
photodynamical analyses. From these analyses, we find that all six
systems are coplanar to within 0°−5°, and are viewed nearly edge on
(i.e. within a couple of degrees). The outer orbital periods and
eccentricities of the six systems are {Pout (days), e}:
{68.7, 0.36}, {123, 0.16}, {60.7, 0.01}, {69.0, 0.29}, {41.5, 0.01},
{93.9, 0.29}, respectively, in the order the sources are listed above.
The masses of all 12 EB stars were in the range of 0.7–1.8 M⊙ and were situated near the main sequence. By contrast, the masses and radii of the tertiary stars ranged from 1.5 to 2.3 M⊙ and 2.9 to 12 R⊙, respectively. We use this information to estimate the occurrence rate of compact flat triple systems..
AB - In this work, we report the discovery and analysis of six new compact triply eclipsing triple star systems found with the TESS
mission: TICs 37743815, 42565581, 54060695, 178010808, 242132789, and
456194776. All of these exhibit distinct third-body eclipses where the
inner eclipsing binary (EB) occults the third (‘tertiary’) star, or vice
versa. We utilized the TESS photometry, archival photometric
data, and available archival spectral energy distribution curves (SED)
to solve for the properties of all three stars, as well as many of the
orbital elements. We describe in detail our SED fits, search of the
archival data for the outer orbital period, and the final global
photodynamical analyses. From these analyses, we find that all six
systems are coplanar to within 0°−5°, and are viewed nearly edge on
(i.e. within a couple of degrees). The outer orbital periods and
eccentricities of the six systems are {Pout (days), e}:
{68.7, 0.36}, {123, 0.16}, {60.7, 0.01}, {69.0, 0.29}, {41.5, 0.01},
{93.9, 0.29}, respectively, in the order the sources are listed above.
The masses of all 12 EB stars were in the range of 0.7–1.8 M⊙ and were situated near the main sequence. By contrast, the masses and radii of the tertiary stars ranged from 1.5 to 2.3 M⊙ and 2.9 to 12 R⊙, respectively. We use this information to estimate the occurrence rate of compact flat triple systems..
KW - Binaries: close
KW - Binaries: eclipsing
KW - Stars: individual: TIC 37743815, TIC 42565581, TIC 54060695, TIC 178010808, TIC 242132789, TIC 456194776
U2 - 10.1093/mnras/stac957
DO - 10.1093/mnras/stac957
M3 - Journal article
AN - SCOPUS:85131020324
SN - 0035-8711
VL - 513
SP - 4341
EP - 4360
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 3
ER -