activity
19962026
most citedEstimation of the XUV radiation onto close planets and their evaporation

407 citations · 6k across the 109 of their papers we have counts for

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Showing 2021Show all

9 papers · 1 filter

astro-ph.EP2021★ 13 cited

A multi-planetary system orbiting the early-M dwarf TOI-1238

E. González-Álvarez, M. R. Zapatero Osorio, J. Sanz-Forcada +53

Two transiting planet candidates with super-Earth radii around the nearby K7--M0 dwarf star TOI-1238 were announced by TESS. We aim to validate their planetary nature using precise…

astro-ph.EP2021★ 59 cited

H and He I absorption in HAT-P-32 b observed with CARMENES -- Detection of Roche lobe overflow and mass loss

S. Czesla, M. Lampón, J. Sanz-Forcada +22

We analyze two high-resolution spectral transit time series of the hot Jupiter HAT-P-32 b obtained with the CARMENES spectrograph. Our new XMM-Newton X-ray observations of the syst…

astro-ph.EP2021

CARMENES detection of the CaII infrared triplet and possible evidence of HeI in the atmosphere of WASP-76b

N. Casasayas-Barris, J. Orell-Miquel, M. Stangret +25

Ultra-hot Jupiters are highly irradiated gas giants with equilibrium temperatures typically higher than 2000K. Atmospheric studies of these planets have shown that their transmissi…

astro-ph.EP2021★ 39 cited

HST PanCET Program: A Complete Near-UV to Infrared Transmission Spectrum for the Hot Jupiter WASP-79b

Alexander D. Rathcke, Ryan J. MacDonald, Joanna K. Barstow +12

We present a new optical transmission spectrum of the hot Jupiter WASP-79b. We observed three transits with the STIS instrument mounted on HST, spanning 0.3 - 1.0 um. Combining the…

astro-ph.EP2021★ 34 cited

Evidence of energy-, recombination-, and photon-limited escape regimes in giant planet H/He atmospheres

M. Lampón, M. López-Puertas, S. Czesla +14

Hydrodynamic escape is the most efficient atmospheric mechanism of planetary mass loss and has a large impact on planetary evolution. Three hydrodynamic escape regimes have been id…

astro-ph.EP2021★ 9 cited

HST PanCET program: Non-detection of atmospheric escape in the warm Saturn-sized planet WASP-29 b

L. A. dos Santos, V. Bourrier, D. Ehrenreich +10

(Abridged) Short-period gas giant exoplanets are susceptible to intense atmospheric escape due to their large scale heights and strong high-energy irradiation. This process is thou…

astro-ph.EP2021★ 9 cited

The Hubble PanCET program: Long-term chromospheric evolution and flaring activity of the M dwarf host GJ 3470

V. Bourrier, L. A. dos Santos, J. Sanz-Forcada +9

Neptune-size exoplanets seem particularly sensitive to atmospheric evaporation, making it essential to characterize the stellar high-energy radiation that drives this mechanism. Th…

astro-ph.EP2021★ 78 cited

A nearby transiting rocky exoplanet that is suitable for atmospheric investigation

T. Trifonov, J. A. Caballero, J. C. Morales +66

Spectroscopy of transiting exoplanets can be used to investigate their atmospheric properties and habitability. Combining radial velocity (RV) and transit data provides additional…

astro-ph.EP2021★ 49 cited

Modelling the He I triplet absorption at 10830 Angstroms in the atmospheres of HD 189733 b and GJ 3470 b

M. Lampón, M. López-Puertas, J. Sanz-Forcada +16

Characterising the atmospheres of exoplanets is key to understanding their nature and provides hints about their formation and evolution. High-resolution measurements of the helium…