activity
20092024
most citedThe slow spin of the young sub-stellar companion GQ Lupi b and its orbital configuration

98 citations · 895 across the 37 of their papers we have counts for

collaborators

37 papers

astro-ph.EP2024

Search for Stellar Companions of Exoplanet Host Stars with AstraLux/CAHA 2.2 m

S. Schlagenhauf, M. Mugrauer, C. Ginski +3

Stellar multiplicity is a key aspect of exoplanet diversity, as the presence of more than one star in a planetary system can have both devastating and positive effects on its forma…

astro-ph.SR2022★ 22 cited

The eclipse of the V773 Tau B circumbinary disk

M. A. Kenworthy, D. González Picos, E. Elizondo +9

A deep (~70%) and extended (~150 days) eclipse was seen towards the young multiple stellar system V773 Tau in 2010. We interpret it as due to the passage of a circumbinary disk aro…

astro-ph.SR2022

Follow-up observations of the binary system Cep

M. Mugrauer, S. Schlagenhauf, S. Buder +2

We present new imaging and spectroscopic observations of the exoplanet host star Cep A, and of its low-mass stellar companion Cep B. We used AstraLux/CAHA to follow the orb…

astro-ph.EP2020★ 8 cited

How many suns are in the sky? A SPHERE multiplicity survey of exoplanet host stars I -- Four new close stellar companions including a white dwarf

Christian Ginski, Markus Mugrauer, Christian Adam +2

We are studying the influence of stellar multiplicity on exoplanet systems, in particular systems that have been detected via radial-velocity searches. We are in particular interes…

astro-ph.EP2020★ 29 cited

A multiplicity study of transiting exoplanet host stars. II. Revised properties of transiting planetary systems with companions

J. Southworth, A. J. Bohn, M. A. Kenworthy +2

We perform a detailed study of six transiting planetary systems with relatively bright stars close enough to affect observations of these systems. Light curves are analysed taking…

astro-ph.EP2020★ 40 cited

A multiplicity study of transiting exoplanet host stars. I. High-contrast imaging with VLT/SPHERE

A. J. Bohn, J. Southworth, C. Ginski +3

We study the multiplicity of host stars to known transiting extra-solar planets to test competing theories on the formation mechanisms of hot Jupiters. We observed 45 exoplanet hos…