activity
20092025
most citedESPRESSO@VLT -- On-sky performance and first results

537 citations · 4.7k across the 97 of their papers we have counts for

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Showing astro-ph.SRShow all

8 papers · 1 filter

astro-ph.SR2022★ 13 cited

Lower-than-expected flare temperatures for TRAPPIST-1

A. J. Maas, E. Ilin, M. Oshagh +12

Although high energetic radiation from flares is a potential threat to exoplanet atmospheres and may lead to surface sterilization, it might also provide the extra energy for low-m…

astro-ph.SR2021★ 41 cited

Giant white-light flares on fully convective stars occur at high latitudes

Ekaterina Ilin, Katja Poppenhaeger, Sarah J. Schmidt +7

White-light flares are magnetically driven localized brightenings on the surfaces of stars. Their temporal, spectral, and statistical properties present a treasury of physical info…

astro-ph.SR2021★ 44 cited

The CARMENES search for exoplanets around M dwarfs. Mapping stellar activity indicators across the M dwarf domain

M. Lafarga, I. Ribas, A. Reiners +19

Stellar activity poses one of the main obstacles for the detection and characterisation of small exoplanets around cool stars, as it can induce radial velocity (RV) signals that ca…

astro-ph.SR2020★ 8 cited

Inflection point in the power spectrum of stellar brightness variations III: Faculae vs. Spot dominance on stars with known rotation periods

E. M. Amazo-Gomez, A. I. Shapiro, S. K. Solanki +4

Stellar rotation periods can be determined by observing brightness variations caused by active magnetic regions transiting visible stellar disk as the star rotates. The successful…

astro-ph.SR2020★ 2 cited

Benchmark stars, benchmark spectrographs: Detailed spectroscopic comparison of ESPRESSO, PEPSI, and HARPS data for Gaia benchmark stars

V. Adibekyan, S. G. Sousa, N. C. Santos +14

Gaia benchmark stars are selected to be calibration stars for different spectroscopic surveys. Very high-quality and homogeneous spectroscopic data for these stars are therefore re…

astro-ph.SR2020★ 15 cited

Rotation periods from the inflection point in the power spectrum of stellar brightness variations: II. The Sun

E. M. Amazo-Gómez, A. I. Shapiro, S. K. Solanki +5

Young and active stars generally have regular, almost sinusoidal, patterns of variability attributed to their rotation, while the majority of older and less active stars, including…

astro-ph.SR2019★ 1 cited

Stellar Astrophysics and Exoplanet Science with the Maunakea Spectroscopic Explorer (MSE)

Maria Bergemann, Daniel Huber, Vardan Adibekyan +70

The Maunakea Spectroscopic Explorer (MSE) is a planned 11.25-m aperture facility with a 1.5 square degree field of view that will be fully dedicated to multi-object spectroscopy. A…

astro-ph.SR2015★ 78 cited

Identifying the best iron-peak and -capture elements for chemical tagging: The impact of the number of lines on measured scatter

V. Adibekyan, P. Figueira, N. C. Santos +9

The main goal of this work is to explore which elements carry the most information about the birth origin of stars and as such that are best suited for chemical tagging. We explore…