activity
20152022
most citedSuppression of Coronal Mass Ejections in active stars by an overlying large-scale magnetic field: A numerical study

166 citations · 942 across the 29 of their papers we have counts for

collaborators
Showing 2020Show all

7 papers · 1 filter

astro-ph.EP2020★ 27 cited

Stellar Winds Drive Strong Variations in Exoplanet Evaporative Outflows and Transit Absorption Signatures

Laura M. Harbach, Sofia P. Moschou, Cecilia Garraffo +4

Stellar wind and photon radiation interactions with a planet can cause atmospheric depletion, which may have a potentially catastrophic impact on a planet's habitability. While the…

astro-ph.SR2020★ 22 cited

An Earth-like stellar wind environment for Proxima Centauri c

Julián D. Alvarado-Gómez, Jeremy J. Drake, Cecilia Garraffo +4

A new planet has been recently discovered around Proxima Centauri. With an orbital separation of au and a minimum mass of about , Proxima c is a prime…

astro-ph.SR2020

Phase-modulated X-ray Emission from Cepheids due to Pulsation-Driven Shocks

Sofia-Paraskevi Moschou, Nektarios Vlahakis, Jeremy J. Drake +4

Cepheids are pulsating variable stars with a periodic chromospheric response at UV wavelengths close to their minimum radius phase. Recently, an X-ray variable signature was captur…

astro-ph.SR2020★ 14 cited

The Space Environment and Atmospheric Joule Heating of the Habitable Zone Exoplanet TOI700-d

O. Cohen, C. Garraffo, S. Moschou +4

We investigate the space environment conditions near the Earth-size planet TOI~700~d using a set of numerical models for the stellar corona and wind, the planetary magnetosphere, a…

astro-ph.SR2020★ 42 cited

Tuning the Exo-Space Weather Radio for Stellar Coronal Mass Ejections

Julián D. Alvarado-Gómez, Jeremy J. Drake, Federico Fraschetti +7

Coronal mass ejections (CMEs) on stars other than the Sun have proven very difficult to detect. One promising pathway lies in the detection of type II radio bursts. Their appearanc…

astro-ph.SR2020★ 2 cited

Investigating Opacity Modifications and Reaction Rate Uncertainties to Resolve the Cepheid Mass Discrepancy

Joyce A. Guzik, Ebraheem Farag, Jakub Ostrowski +4

Cepheid masses derived from pulsations or binary dynamics are generally lower than those derived from stellar evolution models. Recent efforts have been dedicated to investigating…