Results 11 to 20 of about 1,010,215 (374)

TOI-1408: Discovery and Photodynamical Modeling of a Small Inner Companion to a Hot Jupiter Revealed by Transit Timing Variations [PDF]

open access: yesThe Astrophysical Journal Letters
We report the discovery and characterization of a small planet, TOI-1408 c, on a 2.2 day orbit located interior to a previously known hot Jupiter, TOI-1408 b ( P = 4.42 days, M = 1.86 ± 0.02 M _Jup , R = 2.4 ± 0.5 R _Jup ) that exhibits grazing transits.
Judith Korth   +62 more
doaj   +2 more sources

Long-term Variations in the Orbital Period of Hot Jupiters from Transit-timing Analysis Using TESS Survey Data

open access: yesThe Astrophysical Journal Supplement Series
Many hot Jupiters may experience orbital decays, which are manifested as long-term transit-timing variations. We have analyzed 7068 transits from the Transiting Exoplanet Survey Satellite (TESS) for a sample of 326 hot Jupiters.
Wenqin Wang   +5 more
doaj   +2 more sources

Characterizing the Near-infrared Spectra of Flares from TRAPPIST-1 during JWST Transit Spectroscopy Observations [PDF]

open access: yesAstrophysical Journal, 2023
We present the first analysis of JWST near-infrared spectroscopy of stellar flares from TRAPPIST-1 during transits of rocky exoplanets. Four flares were observed from 0.6–2.8 μm with the Near Infrared Imager and Slitless Spectrograph and 0.6–3.5 μm with ...
W. Howard   +18 more
semanticscholar   +1 more source

Distinguishing a planetary transit from false positives: a Transformer-based classification for planetary transit signals [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2023
Current space-based missions, such as the Transiting Exoplanet Survey Satellite (TESS), provide a large database of light curves that must be analyzed efficiently and systematically.
H. Salinas   +4 more
semanticscholar   +1 more source

Forest Fire Patterns and Lightning-Caused Forest Fire Detection in Heilongjiang Province of China Using Satellite Data

open access: yesFire, 2023
Large forest fires can cause significant damage to forest ecosystems and threaten human life and property. Heilongjiang Province is a major forested area in China with the highest number and concentration of lightning-caused forest fires in the country ...
Qiangying Jiao   +5 more
doaj   +1 more source

TESS Transit Timing of Hundreds of Hot Jupiters [PDF]

open access: yesAstrophysical Journal Supplement Series, 2022
We provide a database of transit times and updated ephemerides for 382 planets based on data from the NASA Transiting Exoplanet Survey Satellite (TESS) and previously reported transit times, which were scraped from the literature in a semiautomated ...
Ekaterina S. Ivshina, J. Winn
semanticscholar   +1 more source

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