activity
19992024
most citedThe generalised Lomb-Scargle periodogram. A new formalism for the floating-mean and Keplerian periodograms

1.7k citations · 7.7k across the 76 of their papers we have counts for

collaborators

79 papers

astro-ph.EP2024★ 10 cited

The CARMENES search for exoplanets around M dwarfs. Revisiting the GJ 581 multi-planetary system with new Doppler measurements from CARMENES, HARPS, and HIRES

A. von Stauffenberg, T. Trifonov, A. Quirrenbach +18

GJ 581 is a nearby M dwarf known to host a packed multiple planet system with 2 super-Earths and a Neptune-mass planet. We present new orbital analyses of the system, utilizing rec…

astro-ph.EP2022★ 21 cited

Radial Velocity Survey for Planets around Young stars (RVSPY) A transiting warm super-Jovian planet around HD 114082, a young star with a debris disk

O. Zakhozhay, R. Launhardt, T. Trifonov +7

Aiming to detect planetary companions to young stars with debris disks via the radial velocity method, we observed HD114082 during April 2018 - August 2022 as one of the targets of…

astro-ph.EP2022★ 17 cited

RVSPY -- Radial Velocity Survey for Planets around Young Stars. Target characterization and high-cadence survey

O. Zakhozhay, R. Launhardt, A. Mueller +15

We introduce our Radial Velocity Survey for Planets around Young stars (RVSPY), characterise our target stars, and search for substellar companions at orbital separations smaller t…

astro-ph.EP2022★ 1 cited

A new third planet and the dynamical architecture of the HD33142 planetary system

Trifon Trifonov, Anna Wollbold, Martin Kürster +24

Based on recently-taken and archival HARPS, FEROS and HIRES radial velocities (RVs), we present evidence for a new planet orbiting the first ascent red giant star HD33142 (with an…

astro-ph.SR2022★ 177 cited

Magnetism, rotation, and nonthermal emission in cool stars -- Average magnetic field measurements in 292 M dwarfs

A. Reiners, D. Shulyak, P. J. Käpylä +16

Stellar dynamos generate magnetic fields that are of fundamental importance to the variability and evolution of Sun-like and low-mass stars, and for the development of their planet…

astro-ph.EP2022★ 35 cited

The CARMENES search for exoplanets around M dwarfs: Benchmarking the impact of activity in high-precision radial velocity measurements

S. V. Jeffers, J. R. Barnes, P. Scheofer +17

Current exoplanet surveys using the radial velocity (RV) technique are targeting M dwarfs because any habitable zone terrestrial-mass planets will induce a high RV and orbit on sho…