TIC 454140642: A Compact, Coplanar, Quadruple-lined Quadruple Star System Consisting of Two Eclipsing Binaries

Kostov, Veselin B.; Powell, Brian P.; Torres, Guillermo; Borkovits, T.; Rappaport, S.; Tokovinin, Andreï; Zasche, P.; Anderson, D. R.; Barclay, Thomas; Berlind, P.; Brown, P. Lancaster; Calkins, M.; Collins, Karen A.; Collins, Kevin I.; Conti, Dennis M.; Esquerdo, Gilbert A.; Hellier, C.; Jensen, Eric L. N.; Kamler, Jacob; Kruse, Ethan; Latham, David W.; Mašek, M.; Murgas, F.; Olmschenk, Greg; Orosz, Jerome A.; Pál, András; Πάλλη, Ε.; Schwarz, Richard P.; Stockdale, Chris; Tamayo, Daniel; Uhlàř, R.; Welsh, William F.; West, R. G.

doi:10.3847/1538-4357/ac04ad

Cited by 24 publications

(10 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Despite the fact that they may have been discovered relatively easily, compact double EBs are actually fairly rare objects. Recently discovered systems include only EPIC 220204960 (P in,A = 13.27 d; P in,B = 14.42 d; P out = 300 − 500 d-Rappaport et al [192]), TIC 454140642 (P in,A = 13.62 d; P in,B = 10.39 d; P out = 432 d-Kostov et al [193]), BG Ind (P in,A = 1.46 d; P in,B = 0.53 d; P out = 721 d-Borkovits et al [194]) and TIC 278956474 (P in,A = 5.49 d; P in,B = 5.67 d; P out = 858 d-Rowden et al [195]). Note, also, the intriguing case of BU CMi.…”

Section: Double (Multiple) Ebsmentioning

confidence: 99%

Eclipsing Binaries in Dynamically Interacting Close, Multiple Systems

Borkovits

2022

Galaxies

Self Cite

View full text Add to dashboard Cite

Close, compact, hierarchical, and multiple stellar systems, i.e., multiples having an outer orbital period from months to a few years, comprise a small but continuously growing group of the triple and multiple star zoo. Many of them consist of at least one eclipsing pair of stars and, therefore, exhibit readily observable short-term dynamical interactions among the components. Thus, their dynamical and astrophysical properties can be explored with high precision. In this paper we present an overview of the history of the search for additional components around eclipsing binaries from the first serendipitous discoveries to more systematic recent studies. We describe the different observational detection methods and discuss their connections to the different kinds of astrophysical and dynamical information that can be mined from different datasets. Moreover, the connection amongst the observable phenomena and the long-term dynamics of such systems is also discussed.

show abstract

Section: Double (Multiple) Ebsmentioning

confidence: 99%

Eclipsing Binaries in Dynamically Interacting Close, Multiple Systems

Borkovits

2022

Galaxies

Self Cite

View full text Add to dashboard Cite

show abstract

“…These eclipses indicate quadruple candidates with a 2+2 hierarchical configuration. As part of this effort, we have already discovered the first sextuply eclipsing sextuple system (TIC 168789840, Powell et al 2021), a compact and coplanar quadruply eclipsing quadruple system (TIC 454140642, Kostov et al 2021b), and a transiting circumbinary planet (TIC 172900988, Kostov et al 2021a).…”

Section: Introductionmentioning

confidence: 99%

Ninety-seven Eclipsing Quadruple Star Candidates Discovered in TESS Full-frame Images

Kostov

Powell

Rappaport

et al. 2022

ApJS

Self Cite

View full text Add to dashboard Cite

We present a catalog of 97 uniformly vetted candidates for quadruple star systems. The candidates were identified in TESS full-frame image data from sectors 1–42 through a combination of machine-learning techniques and visual examination, with major contributions from a dedicated group of citizen scientists. All targets exhibit two sets of eclipses with two different periods, both of which pass photocenter tests confirming that the eclipses are on target. This catalog outlines the statistical properties of the sample, nearly doubles the number of known multiply eclipsing quadruple systems, and provides the basis for detailed future studies of individual systems. Several important discoveries have already resulted from this effort, including the first sextuply eclipsing sextuple stellar system and the first transiting circumbinary planet detected from one sector of TESS data.

show abstract

“…Such visual searches are a complement to more automated ones using machine learning algorithms (see e.g. Powell et al 2021 ;Kostov et al 2021 ;Kostov et al 2022 ). The light curves are displayed with Allan Schmitt's LcTools and LcViewer software (Schmitt, Hartman & Kipping 2019 ), which allows for an inspection of a typical light curve in just ∼5 s. It is important to note that 9 million of the studied light curves were of anonymous stars, while 1 million light curves were of preselected eclipsing binaries that were found in the TESS data via machine learning searches (see Powell et al 2021 ;Kruse et al, in preparation).…”

Section: I S C Ov E Ry O F T R I P Ly E C L I P S I N G T R I P L E S...mentioning

confidence: 99%

Six new compact triply eclipsing triples found withTESS

Rappaport

Borkovits

Gagliano³

et al. 2022

Monthly Notices of the Royal Astronomical Society

View full text Add to dashboard Cite

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 1.5-2.3 M⊙ and 2.9-12 R⊙, respectively. We use this information to estimate the occurrence rate of compact flat triple systems.

show abstract

TIC 454140642: A Compact, Coplanar, Quadruple-lined Quadruple Star System Consisting of Two Eclipsing Binaries

Cited by 24 publications

References 69 publications

Eclipsing Binaries in Dynamically Interacting Close, Multiple Systems

Eclipsing Binaries in Dynamically Interacting Close, Multiple Systems

Ninety-seven Eclipsing Quadruple Star Candidates Discovered in TESS Full-frame Images

Six new compact triply eclipsing triples found withTESS

Contact Info

Product

Resources

About