activity
20002021
most citedNew Mass Loss Measurements from Astrospheric Lyman-alpha Absorption

469 citations · 6.5k across the 97 of their papers we have counts for

collaborators

97 papers

astro-ph.EP2021★ 16 cited

TOI-220 : a warm sub-Neptune discovered by TESS

S. Hoyer, D. Gandolfi, D. J. Armstrong +77

In this paper we report the discovery of TOI-220 , a new sub-Neptune detected by the Transiting Exoplanet Survey Satellite (TESS) and confirmed by radial velocity follow-up obse…

astro-ph.EP2021★ 15 cited

Hot planets around cool stars -- two short-period mini-Neptunes transiting the late K-dwarf TOI-1260

I. Y. Georgieva, C. M. Persson, O. Barragán +56

We present the discovery and characterization of two sub-Neptunes in close orbits, as well as a tentative outer planet of a similar size, orbiting TOI-1260 - a low metallicity K6V…

astro-ph.SR2021★ 67 cited

The Mega-MUSCLES Spectral Energy Distribution Of TRAPPIST-1

David J. Wilson, Cynthia S. Froning, Girish M. Duvvuri +19

We present a 5A-100um Spectral Energy Distribution (SED) of the ultracool dwarf star TRAPPIST-1, obtained as part of the Mega-MUSCLES Treasury Survey. The SED combines ultraviolet…

astro-ph.SR2021★ 50 cited

Reconstructing the Extreme Ultraviolet Emission of Cool Dwarfs Using Differential Emission Measure Polynomials

Girish M. Duvvuri, J. Sebastian Pineda, Zachory K. Berta-Thompson +16

Characterizing the atmospheres of planets orbiting M dwarfs requires understanding the spectral energy distributions of M dwarfs over planetary lifetimes. Surveys like MUSCLES, HAZ…

astro-ph.EP2021★ 27 cited

A multi-wavelength look at the GJ 9827 system -- No evidence of extended atmospheres in GJ 9827 b and d from HST and CARMENES data

Ilaria Carleo, Allison Youngblood, Seth Redfield +18

GJ9827 is a bright star hosting a planetary system with three transiting planets. As a multi-planet system with planets that sprawl within the boundaries of the radius gap between…

astro-ph.EP2021★ 90 cited

Masses and compositions of three small planets orbiting the nearby M dwarf L231-32 (TOI-270) and the M dwarf radius valley

Vincent Van Eylen, N. Astudillo-Defru, X. Bonfils +69

We report on precise Doppler measurements of L231-32 (TOI-270), a nearby M dwarf ( pc, M, R), which hosts three transiting p…