activity
20192026
most citedFlares in Open Clusters with K2. II. Pleiades, Hyades, Praesepe, Ruprecht 147, and M67

75 citations · 166 across the 6 of their papers we have counts for

collaborators

7 papers

astro-ph.SR2026

Searching for rotational X-ray modulation on TIC 277539431

Desmond Dsouza, Katja Poppenhaeger, Ekaterina Ilin

TIC 277539431, a fast rotating M7 dwarf, was detected to host the highest latitude flare to date at . Magnetic activity like stellar flares occurring at high latitude ind…

astro-ph.SR2025

High-Resolution Modelling of Coronae and Winds in Solar-type Stars with Varying Rotation Rates I. X-ray Coronae

Yue-Hong Chen, Julián D. Alvarado-Gómez, Xin Cheng +8

Stellar coronae are believed to be the main birthplace of various stellar magnetic activities. However, the structures and properties of stellar coronae remain poorly understood. U…

astro-ph.IM2023★ 1 cited

The discovery space of ELT-ANDES. Stars and stellar populations

Ian U. Roederer, Julián D. Alvarado-Gómez, Carlos Allende Prieto +31

The ArmazoNes high Dispersion Echelle Spectrograph (ANDES) is the optical and near-infrared high-resolution echelle spectrograph envisioned for the European Extremely Large Telesco…

astro-ph.SR2020★ 75 cited

Flares in Open Clusters with K2. II. Pleiades, Hyades, Praesepe, Ruprecht 147, and M67

Ekaterina Ilin, Sarah J. Schmidt, Katja Poppenhäger +3

Flares, energetic eruptions on the surfaces of stars, are an unmistakable manifestation of magnetically driven emission. Their occurrence rates and energy distributions trace stell…

astro-ph.EP2020★ 16 cited

Role of the impact parameter in exoplanet transmission spectroscopy

X. Alexoudi, M. Mallonn, E. Keles +3

Transmission spectroscopy is a promising tool for the atmospheric characterization of transiting exoplanets. Because the planetary signal is faint, discrepancies have been reported…

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.EP2019★ 32 cited

The potassium absorption on HD189733b and HD209458b

Engin Keles, Matthias Mallonn, Carolina von Essen +9

In this work, we investigate the potassium excess absorption around 7699A of the exoplanets HD189733b and HD209458b. For this purpose, we used high spectral resolution transit obse…