Search Results - "Jayaraman, Rahul"
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Gamma-Ray Bursts Observed by the Transiting Exoplanet Survey Satellite: Prompt Optical Counterparts and Afterglows of Swift-XRT-localized Gamma-Ray Bursts
Published in The Astrophysical journal (01-09-2024)“…Abstract Very few detections have been made of optical flashes contemporaneous with prompt high-energy emission from a gamma-ray burst (GRB). In this work, we…”
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2
TIC 435850195: The Second Triaxial Tidally Tilted Pulsator
Published in The Astrophysical journal (01-11-2024)“…Abstract The Transiting Exoplanet Survey Satellite (TESS) has enabled the discovery of numerous tidally tilted pulsators (TTPs), which are pulsating stars in…”
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3
Transient Corotating Clumps around Adolescent Low-mass Stars from Four Years of TESS
Published in The Astronomical journal (01-01-2024)“…Abstract Complex periodic variables (CPVs) are stars that exhibit highly structured and periodic optical light curves. Previous studies have indicated that…”
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4
Searching for Gravitational-wave Counterparts Using the Transiting Exoplanet Survey Satellite
Published in Astrophysical journal. Letters (01-05-2023)“…Abstract In 2017, the LIGO and Virgo gravitational-wave (GW) detectors, in conjunction with electromagnetic (EM) astronomers, observed the first GW…”
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5
Kepler K2 and TESS Observations of Two Magnetic Cataclysmic Variables: The New Asynchronous Polar SDSS J084617.11+245344.1 and Paloma
Published in The Astronomical journal (01-02-2023)“…Abstract There have been relatively few published long-duration, uninterrupted light curves of magnetic cataclysmic variable stars in which the accreting white…”
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6
Four Years of Type Ia Supernovae Observed by TESS: Early-time Light-curve Shapes and Constraints on Companion Interaction Models
Published in The Astrophysical journal (01-10-2023)“…Abstract We present 307 type Ia supernova (SN) light curves from the first 4 yr of the Transiting Exoplanet Survey Satellite mission. We use this sample to…”
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7
TIC 184743498: The first tri-axial stellar pulsator
Published in Monthly notices of the Royal Astronomical Society (11-01-2024)“…Abstract We have discovered a δ Scuti pulsator in a tight binary (P = 1.053 d) with nine pulsation modes whose frequencies are between 38 and 56 d−1. Each of…”
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TIC 184 743 498: the first tri-axial stellar pulsator
Published in Monthly notices of the Royal Astronomical Society (01-02-2024)“…ABSTRACT We have discovered a δ Scuti pulsator in a tight binary (P = 1.053 d) with nine pulsation modes whose frequencies are between 38 and 56 d−1. Each of…”
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Journal Article -
9
Tidally Tilted Pulsations in HD 265435, a Subdwarf B Star with a Close White Dwarf Companion
Published in Astrophysical journal. Letters (01-04-2022)“…Abstract Tidally tilted pulsators (TTPs) are an intriguing new class of oscillating stars in binary systems; in such stars, the pulsation axis coincides with…”
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10
TIC 5724661: A Long-period Binary with a Pulsating sdB Star and δ Scuti Variable
Published in The Astrophysical journal (01-09-2022)“…Abstract Using TESS 20 s cadence data, we have discovered an unusual combination of pulsating stars in what we infer to be a binary system. The binary consists…”
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11
Could the Magnetic Star HD 135348 Possess a Rigidly Rotating Magnetosphere?
Published in Astrophysical journal. Letters (01-01-2022)“…Abstract We report the detection and characterization of a new magnetospheric star, HD 135348, based on photometric and spectropolarimetric observations. The…”
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12
101 eclipsing quadruple star candidates discovered in TESS full frame images
Published in Monthly notices of the Royal Astronomical Society (01-01-2024)“…ABSTRACT We present our second catalogue of quadruple star candidates, containing 101 systems discovered in TESS Full-Frame Image data. The targets were…”
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13
Complex Modulation of Rapidly Rotating Young M Dwarfs: Adding Pieces to the Puzzle
Published in The Astronomical journal (01-04-2022)“…Abstract New sets of young M dwarfs with complex, sharp-peaked, and strictly periodic photometric modulations have recently been discovered with Kepler/K2…”
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14
BU Canis Minoris – the most compact known flat doubly eclipsing quadruple system
Published in Monthly notices of the Royal Astronomical Society (24-07-2023)“…ABSTRACT We have found that the 2+2 quadruple star system BU CMi is currently the most compact quadruple system known, with an extremely short outer period of…”
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15
TIC 114936199: A Quadruple Star System with a 12 Day Outer-orbit Eclipse
Published in The Astrophysical journal (01-10-2022)“…Abstract 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…”
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16
Gamma-Ray Bursts Observed by the Transiting Exoplanet Survey Satellite: Prompt Optical Counterparts and Afterglows of Swift-XRT Localized GRBs
Published 09-08-2023“…Very few detections have been made of optical flashes contemporaneous with prompt high-energy emission from a gamma-ray burst (GRB). In this work, we present…”
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Journal Article -
17
TIC 184743498: The First Tri-Axial Stellar Pulsator
Published 27-11-2023“…We have discovered a $\delta$ Scuti pulsator in a tight binary (P = 1.053 d) with nine pulsation modes whose frequencies are between 38 and 56 d$^{-1}$. Each…”
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Journal Article -
18
Multi-messenger astrophysics in the gravitational-wave era
Published 16-11-2023“…The observation of GW170817, the first binary neutron star merger observed in both gravitational waves (GW) and electromagnetic (EM) waves, kickstarted the age…”
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19
Searching for Gravitational-Wave Counterparts using the Transiting Exoplanet Survey Satellite
Published 09-02-2023“…ApJL 948 L3 (2023) In 2017, the LIGO and Virgo gravitational wave (GW) detectors, in conjunction with electromagnetic (EM) astronomers, observed the first GW…”
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Journal Article -
20
TIC 435850195: The Second Tri-Axial, Tidally Tilted Pulsator
Published 05-09-2024“…The Transiting Exoplanet Survey Satellite (TESS) has enabled the discovery of numerous tidally tilted pulsators (TTPs), which are pulsating stars in close…”
Get full text
Journal Article