Jerome A. Orosz
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View article: 52 Eclipsing Quadruple Star Candidates Discovered in TESS Full Frame Images
52 Eclipsing Quadruple Star Candidates Discovered in TESS Full Frame Images Open
We present the discovery of 52 eclipsing quadruple star candidates detected in TESS Full Frame Image eleanor data by machine learning and citizen scientists. The uniformly vetted and validated targets exhibit two sets of eclipses following…
View article: The TESS Ten Thousand Catalog: 10,001 Uniformly Vetted and Validated Eclipsing Binary Stars Detected in Full-frame Image Data by Machine Learning and Analyzed by Citizen Scientists
The TESS Ten Thousand Catalog: 10,001 Uniformly Vetted and Validated Eclipsing Binary Stars Detected in Full-frame Image Data by Machine Learning and Analyzed by Citizen Scientists Open
The Transiting Exoplanet Survey Satellite (TESS) has surveyed nearly the entire sky in full-frame image mode with a time resolution of 200 s to 30 minutes and a temporal baseline of at least 27 days. In addition to the primary goal of disc…
View article: Precise Age for the Binary HD 21278 in the Young <i>α</i> Persei Cluster
Precise Age for the Binary HD 21278 in the Young <i>α</i> Persei Cluster Open
We present a study of the double-lined spectroscopic binary HD 21278 that contains one of the brightest main-sequence stars in the young α Persei open cluster. We analyzed new spectra and reanalyzed archived spectra to measure precise new …
View article: Precise Age For The Binary HD 21278 In The Young Alpha Persei Cluster
Precise Age For The Binary HD 21278 In The Young Alpha Persei Cluster Open
We present a study of the double-lined spectroscopic binary HD 21278 that contains one of the brightest main sequence stars in the young $α$ Persei open cluster. We analyzed new spectra and reanalyzed archived spectra to measure precise ne…
View article: The TESS Ten Thousand Catalog: 10,001 uniformly-vetted and -validated Eclipsing Binary Stars detected in Full-Frame Image data by machine learning and analyzed by citizen scientists
The TESS Ten Thousand Catalog: 10,001 uniformly-vetted and -validated Eclipsing Binary Stars detected in Full-Frame Image data by machine learning and analyzed by citizen scientists Open
The Transiting Exoplanet Survey Satellite (TESS) has surveyed nearly the entire sky in Full-Frame Image mode with a time resolution of 200 seconds to 30 minutes and a temporal baseline of at least 27 days. In addition to the primary goal o…
View article: Upper Limits on Stellar Companions to the Kepler-34 and Kepler-35 Systems
Upper Limits on Stellar Companions to the Kepler-34 and Kepler-35 Systems Open
We obtained new spectra of Kepler-34 and Kepler-35 with Keck-HIRES—nearly a decade after these systems were originally characterized with this spectrograph and other instruments—to search for radial velocity (RV) trends from a potential th…
View article: Upper Limits on Stellar Companions to the Kepler-34 and Kepler-35 Systems
Upper Limits on Stellar Companions to the Kepler-34 and Kepler-35 Systems Open
We obtained new spectra of Kepler-34 and Kepler-35 with Keck-HIRES, nearly a decade after these systems were originally characterized with this spectrograph and other instruments, to search for RV trends from a potential third stellar-mass…
A Contact Binary Misclassified as an Ellipsoidal Variable: Complications for Detached Black Hole Searches Open
Identifying sources exhibiting ellipsoidal variability in large photometric surveys is becoming a promising method to search for candidate detached black holes (BHs) in binaries. This technique aims to exploit the orbital-phase-dependent m…
A Contact Binary Mis-Classified as an Ellipsoidal Variable: Complications for Detached Black Hole Searches Open
Identifying sources exhibiting ellipsoidal variability in large photometric surveys is becoming a promising method to search for candidate detached black holes in binaries. This technique aims to exploit the orbital-phase dependent modulat…
Photodynamical Modeling of the Compact, Multiply Eclipsing Systems KIC 5255552, KIC 7668648, KIC 10319590, EPIC 220204960 Open
We present photodynamical models of four eclipsing binary systems that are members of higher-order multiple systems. We provide some radial velocities measurements and use recent TESS data for three of the systems. KIC 7668648 consists of …
Photodynamical Modeling of the Compact, Multiply Eclipsing Systems KIC 5255552, KIC 7668648, KIC 10319590, and EPIC 220204960 Open
We present photodynamical models of four eclipsing binary systems that show strong evidence of being members of higher-order multiple systems via their strong eclipse timing variations and/or via the presence of extra eclipse events. Three…
New methods for radial-velocity measurements of double-lined binaries, and detection of a circumbinary planet orbiting TIC 172900988 Open
Ongoing ground-based radial-velocity observations seeking to detect circumbinary planets focus on single-lined binaries even though over 9 in every 10 binary systems in the solar neighbourhood are double lined. Double-lined binaries are on…
New methods for radial-velocity measurements of double-lined binaries, and detection of a circumbinary planet orbiting TIC 172900988 Open
Ongoing ground-based radial-velocity observations seeking to detect circumbinary planets focus on single-lined binaries even though over nine in every ten binary systems in the solar-neighbourhood are double-lined. Double-lined binaries ar…
View article: 101 eclipsing quadruple star candidates discovered in <i>TESS</i> full frame images
101 eclipsing quadruple star candidates discovered in <i>TESS</i> full frame images Open
We present our second catalogue of quadruple star candidates, containing 101 systems discovered in TESS Full-Frame Image data. The targets were initially detected as eclipsing binary stars with the help of supervised machine learning metho…
View article: 101 Eclipsing Quadruple Star Candidates Discovered in TESS Full Frame\n Images
101 Eclipsing Quadruple Star Candidates Discovered in TESS Full Frame\n Images Open
We present our second catalog of quadruple star candidates, containing 101\nsystems discovered in TESS Full-Frame Image data. The targets were initially\ndetected as eclipsing binary stars with the help of supervised machine learning\nmeth…
Modeling Apsidal Motion in Eclipsing Binaries Using ELC Open
Apsidal motion is the precession of the line of apsides in the orbit of a binary star due to perturbations from General Relativity (GR), tides, or third-body interactions. The rate of precession due to tidal effects depends on the interior…
Modeling Apsidal Motion in Eclipsing Binaries using ELC Open
Apsidal motion is the precession of the line of apsides in the orbit of a binary star due to perturbations from General Relativity (GR), tides, or third-body interactions. The rate of precession due to tidal effects depends on the interior…
View article: Precise Age for the Binary Star System 12 Com in the Coma Berenices Cluster
Precise Age for the Binary Star System 12 Com in the Coma Berenices Cluster Open
We present measurements of the interferometrically resolved binary star system 12 Com and the single giant star 31 Com in the cluster Coma Berenices. 12 Com is a double-lined spectroscopic binary system consisting of a G7 giant and an A3 d…
View article: Precise Age for the Binary Star System 12 Com in the Coma Berenices Cluster
Precise Age for the Binary Star System 12 Com in the Coma Berenices Cluster Open
We present measurements of the interferometrically-resolved binary star system 12 Com and the single giant star 31 Com in the cluster Coma Berenices. 12 Com is a double-lined spectroscopic binary system consisting of a G7 giant and an A3 d…
View article: Updated radial velocities and new constraints on the nature of the unseen source in NGC1850 BH1
Updated radial velocities and new constraints on the nature of the unseen source in NGC1850 BH1 Open
A black hole candidate orbiting a luminous star in the Large Magellanic Cloud young cluster NGC 1850 (∼100 Myr) has recently been reported based on radial velocity and light-curve modelling. Subsequently, an alternative explanation has bee…
View article: Updated radial velocities and new constraints on the nature of the unseen source in NGC1850 BH1
Updated radial velocities and new constraints on the nature of the unseen source in NGC1850 BH1 Open
A black hole candidate orbiting a luminous star in the Large Magellanic Cloud young cluster NGC 1850 ($\sim100$Myr) has recently been reported based on radial velocity and light curve modelling. Subsequently, an alternative explanation has…
View article: Radial-velocity discovery of a second planet in the TOI-1338/BEBOP-1 circumbinary system
Radial-velocity discovery of a second planet in the TOI-1338/BEBOP-1 circumbinary system Open
We report the detection of a gas-giant planet in orbit around both stars of an eclipsing binary star system that also contains the smaller, inner transiting planet TOI-1338b. The new planet, called TOI-1338/BEBOP-1c, was discovered using r…
View article: Evolved Eclipsing Binaries and the Age of the Open Cluster NGC 752*
Evolved Eclipsing Binaries and the Age of the Open Cluster NGC 752* Open
We present analyses of improved photometric and spectroscopic observations for two detached eclipsing binaries at the turnoff of the open cluster NGC 752: the 1.01 days binary DS And and the 15.53 days BD +37 410. For DS And, we find M 1 =…
View article: Evolved Eclipsing Binaries and the Age of the Open Cluster NGC 752
Evolved Eclipsing Binaries and the Age of the Open Cluster NGC 752 Open
We present analyses of improved photometric and spectroscopic observations for two detached eclipsing binaries at the turnoff of the open cluster NGC 752: the 1.01 day binary DS And and the 15.53 d BD $+$37 410. For DS And, we find $M_1 = …
View article: The Interferometric Binary ϵ Cnc in Praesepe: Precise Masses and Age
The Interferometric Binary ϵ Cnc in Praesepe: Precise Masses and Age Open
We observe the brightest member of the Praesepe cluster, ϵ Cnc, to precisely measure the characteristics of the stars in this binary system, en route to a new measurement of the cluster’s age. We present spectroscopic radial velocity measu…
View article: The Interferometric Binary Epsilon Cancri in Praesepe: Precise Masses and Age
The Interferometric Binary Epsilon Cancri in Praesepe: Precise Masses and Age Open
We observe the brightest member of the Praesepe cluster, Epsilon Cancri, to precisely measure the characteristics of the stars in this binary system, en route to a new measurement of the cluster's age. We present spectroscopic radial veloc…
Ninety-seven Eclipsing Quadruple Star Candidates Discovered in TESS Full-frame Images Open
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, …
Mass Transfer as an Explanation for the Lifetime Travel Time Discrepancy in IT Librae Open
The eclipsing binary IT Librae is an unusual system of two B-type stars that is situated about 1 kpc above the Galactic plane. The binary was probably ejected from its birthplace in the disk, but the implied time of flight to its current l…
View article: TESS Eclipsing Binary Stars. I. Short-cadence Observations of 4584 Eclipsing Binaries in Sectors 1–26
TESS Eclipsing Binary Stars. I. Short-cadence Observations of 4584 Eclipsing Binaries in Sectors 1–26 Open
In this paper we present a catalog of 4584 eclipsing binaries observed during the first two years (26 sectors) of the TESS survey. We discuss selection criteria for eclipsing binary candidates, detection of hitherto unknown eclipsing syste…