activity
20172023
most citedThe CARMENES search for exoplanets around M dwarfs: High-resolution optical and near-infrared spectroscopy of 324 survey stars

253 citations · 1.2k across the 17 of their papers we have counts for

collaborators

17 papers

astro-ph.EP2023★ 96 cited

The CARMENES search for exoplanets around M dwarfs. Guaranteed time observations Data Release 1 (2016-2020)

I. Ribas, A. Reiners, M. Zechmeister +102

The CARMENES instrument was conceived to deliver high-accuracy radial velocity (RV) measurements with long-term stability to search for temperate rocky planets around a sample of n…

astro-ph.SR2022★ 19 cited

The CARMENES search for exoplanets around M dwarfs. Rotational variation in activity indicators of Ross 318, YZ CMi, TYC 3529-1437-1, and EV Lac

P. Schöfer, S. V. Jeffers, A. Reiners +22

The CARMENES instrument is searching for periodic radial-velocity (RV) variations of M dwarfs, which are induced by orbiting planets. However, there are other potential sources of…

astro-ph.SR2021★ 17 cited

The CARMENES search for exoplanets around M dwarfs. Diagnostic capabilities of strong K I lines for photosphere and chromosphere

B. Fuhrmeister, S. Czesla, E. Nagel +20

There are several strong K I lines found in the spectra of M dwarfs, among them the doublet near 7700 AA and another doublet near 12 500 AA. We study these optical and near-infrare…

astro-ph.SR2021★ 1 cited

Simultaneous photometric and CARMENES spectroscopic monitoring of fast-rotating M dwarf GJ 3270. Discovery of a post-flare corotating feature

E. N. Johnson, S. Czesla, B. Fuhrmeister +33

Context: Active M dwarfs frequently exhibit large flares, which can pose an existential threat to the habitability of any planet in orbit in addition to making said planets more di…

astro-ph.SR2020★ 3 cited

The CARMENES search for exoplanets around M dwarfs. Variability of the He I line at 10830 Å

B. Fuhrmeister, S. Czesla, L. Hildebrandt +23

The He I infrared (IR) triplet at 10830 Åis known as an activity indicator in solar-type stars and has become a primary diagnostic in exoplanetary transmission spectroscopy. He I l…

astro-ph.SR2020★ 7 cited

The CARMENES search for exoplanets around M dwarfs. The He I infrared triplet lines in PHOENIX models of M2-3 V stars

D. Hintz, B. Fuhrmeister, S. Czesla +25

The He I infrared (IR) line at a vacuum wavelength of 10833 A is a diagnostic for the investigation of atmospheres of stars and planets orbiting them. For the first time, we study…