IVOA Registry (Virtual Observatory)2025 · Astronomical catalogue
Detecting exoplanet transits: X-ray informations…To date, only one exoplanet (HD 189733 b) has an X-ray transit detection.… …We examined all the transiting exoplanet systems in the NASA Exoplanet Archive and gathered X-ray flux measurements or estimates for each host star.…
IVOA Registry (Virtual Observatory)2012 · Astronomical catalogue
X-ray-age relation and exoplanet evaporation…We apply our X-ray emission - age relations to the investigation of the evaporation history of 121 known transiting exoplanets using a simple energy -limited model of evaporation and… …We find that for an evaporation efficiency of 25 percent we expect around 1 in 5 of the known transiting exoplanets to have lost >10 percent of their mass since formation.…
IVOA Registry (Virtual Observatory)2022 · Astronomical catalogue
Exoplanet X-ray irradiation and evaporation rates…High-energy irradiation is a driver for atmospheric evaporation and mass loss in exoplanets.… …We identify 14 first-time X-ray detections of transiting exoplanets that are subject to irradiation levels known to cause observable evaporation signatures in other exoplanets.…
IVOA Registry (Virtual Observatory)2026 · Astronomical catalogue
SPHERE infrared survey for exoplanets. V.…imaging (DI) is ideally positioned to probe the outer regions (5-300au) of planetary systems, providing complementary information to techniques such as transits and radial velocities… …We present the full sample of the SpHere INfrared survey for Exoplanets (SHINE), the second largest DI campaign to date.…
IVOA Registry (Virtual Observatory)2025 · Astronomical catalogue
iota Hor SED modelling…The HeI 1083nm transit signature is commonly used in tracing escaping planetary atmospheres.… …We model how stellar activity cycles affect the atmospheric escape and HeI 1083nm signatures of four types of highly irradiated exoplanets, at 0.025 and 0.05au, during minimum and maximum…
IVOA Registry (Virtual Observatory)2022 · Astronomical catalogue
5-55000{AA} spectrum of TOI 560…The absorption signal repeats during a partial transit obtained a month later, but is marginally stronger and bluer, perhaps reflecting changes in the stellar wind environment.… …We find that our models generally overpredict the measured magnitude of the absorption during transit, the size of the blueshift, or both.…
IVOA Registry (Virtual Observatory)2022 · Astronomical catalogue
Fiducial stellar spectrum of HD 63433…Using Hubble Space Telescope (HST)/Space Telescope Imaging Spectrograph, we measure a transit depth of 11.1{+/-}1.5% in the blue wing and 8{+/-}3% in the red.… …This signal is unlikely to be due to stellar variability, but should be confirmed by an upcoming second transit observation with HST.…
IVOA Registry (Virtual Observatory)2022 · Astronomical catalogue
Flares and rotation of M dwarfs…With the Transiting Exoplanet Survey Satellite (TESS) having completed its primary mission in July 2020, the number of planets confirmed by follow-up observations is growing further… …We identified 112 M dwarfs with a TESS magnitude <=11.5 for which TESS can probe the full habitable zone for transits.…
IVOA Registry (Virtual Observatory)2026 · Astronomical catalogue
Extra-physics in ASAS-SN EBs and variables…parameters of more than 30000 detached eclipsing binaries, we identified 766 eclipsing binaries with additional features in their All-Sky Automated Survey for Supernovae (ASAS-SN) and Transiting… …Exoplanet Survey Satellite light curves.…
IVOA Registry (Virtual Observatory)2024 · Astronomical catalogue
Photometry & spectroscopy follow-up of ASASSN-20hx…From Transiting Exoplanet Survey Satellite data, we determine that the ANT began to brighten on 2020 June 22.8 with a linear rise in flux for at least the first week.…
IVOA Registry (Virtual Observatory)2022 · Astronomical catalogue
Follow-up photometry of ASASSN-14ko…The Transiting Exoplanet Survey Satellite observed an outburst during Sectors 4-6, revealing a rise time of 5.60+/-0.05days in the optical and a decline that is best fit with an exponential…
IVOA Registry (Virtual Observatory)2023 · Astronomical catalogue
Chromospheric activity of {rho} CrB and 88 Leo…We aim to characterize this midlife transition by combining archival stellar activity data from the Mount Wilson Observatory with asteroseismology from the Transiting Exoplanet Survey…
IVOA Registry (Virtual Observatory)2022 · Astronomical catalogue
First eROSITA study of nearby M dwarfs…ROentgen Survey with an Imaging Telescope Array (eROSITA) on board the Russian Spektrum-Roentgen-Gamma mission (SRG), and we combine the new X-ray data with observations with the Transiting… …Exoplanet Survey Satellite (TESS).…
IVOA Registry (Virtual Observatory)2024 · Astronomical catalogue
M dwarfs observed with eROSITA and TESS…We used light curves from the extended ROentgen Survey with an Imaging Telescope Array (eROSITA) on board the Russian Spektrum-Roentgen-Gamma mission (SRG) and the Transiting Exoplanet…