0000000000379262

AUTHOR

Jason D. Eastman

showing 2 related works from this author

Exploring Broadband GRB Behavior During gamma-ray Emission

2007

The robotic ROTSE-III telescope network detected prompt optical emission contemporaneous with the gamma-ray emission of Swift events GRB051109A and GRB051111. Both datasets have continuous coverage at high signal-to-noise levels from the prompt phase onwards, thus the early observations are readily compared to the Swift XRT and BAT high energy detections. In both cases, the optical afterglow is established, declining steadily during the prompt emission. For GRB051111, there is evidence of an excess optical component during the prompt emission. The component is consistent with the flux spectrally extrapolated from the gamma-rays, using the gamma-ray spectral index. A compilation of spectral …

PhysicsSpectral indexAstrophysics::High Energy Astrophysical PhenomenaAstrophysics (astro-ph)Gamma rayPhase (waves)FluxFOS: Physical sciencesAstronomy and AstrophysicsAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics01 natural sciencesAfterglowlaw.inventionTelescopeQC PhysicsSpace and Planetary Sciencelaw0103 physical sciencesBroadband010306 general physicsGamma-ray burst010303 astronomy & astrophysics
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The TESS Grand Unified Hot Jupiter Survey. I. Ten TESS Planets

2022

We report the discovery of ten short-period giant planets (TOI-2193A b, TOI-2207 b, TOI-2236 b, TOI-2421 b, TOI-2567 b, TOI-2570 b, TOI-3331 b, TOI-3540A b, TOI-3693 b, TOI-4137 b). All of the planets were identified as planet candidates based on periodic flux dips observed by NASA's Transiting Exoplanet Survey Satellite (TESS). The signals were confirmed to be from transiting planets using ground-based time-series photometry, high angular resolution imaging, and high-resolution spectroscopy coordinated with the TESS Follow-up Observing Program. The ten newly discovered planets orbit relatively bright F and G stars ($G < 12.5$,~$T_\mathrm{eff}$ between 4800 and 6200 K). The planets' orbi…

Earth and Planetary Astrophysics (astro-ph.EP)Space and Planetary ScienceFOS: Physical sciencesAstronomy and AstrophysicsAstrophysics - Earth and Planetary Astrophysics
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