activity
20022023
most citedNear-UV Absorption, Chromospheric Activity, and Star-Planet Interactions in the WASP-12 system

228 citations · 1.5k across the 43 of their papers we have counts for

collaborators

45 papers

astro-ph.SR2023★ 19 cited

Asteroseismology and Spectropolarimetry of the Exoplanet Host Star Serpentis

Travis S. Metcalfe, Derek Buzasi, Daniel Huber +31

The bright star Ser hosts a hot Neptune with a minimum mass of 13.6 and a 15.5 day orbit. It also appears to be a solar analog, with a mean rotation period of 25.8 d…

astro-ph.SR2023★ 23 cited

Constraints on Magnetic Braking from the G8 Dwarf Stars 61 UMa and Cet

Travis S. Metcalfe, Klaus G. Strassmeier, Ilya V. Ilyin +11

During the first half of their main-sequence lifetimes, stars rapidly lose angular momentum to their magnetized winds, a process known as magnetic braking. Recent observations sugg…

astro-ph.SR2023★ 4 cited

Non-thermal motions and atmospheric heating of cool stars

S. Boro Saikia, T. Lueftinger, V. S. Airapetian +6

The magnetic processes associated with the non-thermal broadening of optically thin emission lines appear to carry enough energy to heat the corona and accelerate the solar wind. W…

astro-ph.SR2022★ 51 cited

The Origin of Weakened Magnetic Braking in Old Solar Analogs

Travis S. Metcalfe, Adam J. Finley, Oleg Kochukhov +10

The rotation rates of main-sequence stars slow over time as they gradually lose angular momentum to their magnetized stellar winds. The rate of angular momentum loss depends on the…

astro-ph.SR2022★ 31 cited

Intrinsic Lyman alpha Profiles of High-Velocity G, K, and M Dwarfs

Allison Youngblood, J. Sebastian Pineda, Thomas Ayres +5

Observations of H I Lyman alpha, the brightest UV emission line of late-type stars, are critical for understanding stellar chromospheres and transition regions, modeling photochemi…

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…