activity
20062022
most citedDirect evidence of a sub-stellar companion around CT Cha

102 citations · 987 across the 35 of their papers we have counts for

collaborators
Showing astro-ph.EPShow all

7 papers · 1 filter

astro-ph.EP2022★ 41 cited

The polar orbit of the warm Neptune GJ436b seen with VLT/ESPRESSO

V. Bourrier, M. R. Zapatero Osorio, R. Allart +24

GJ436b might be the prototype of warm Neptunes that have undergone late migration induced by an outer companion. Precise determination of the orbital architecture of such systems i…

astro-ph.EP2013★ 57 cited

Constraints on a second planet in the WASP-3 system

G. Maciejewski, A. Niedzielski, A. Wolszczan +30

There have been previous hints that the transiting planet WASP-3 b is accompanied by a second planet in a nearby orbit, based on small deviations from strict periodicity of the obs…

astro-ph.EP2013★ 76 cited

Herschel's "Cold Debris Disks": Background Galaxies or Quiescent Rims of Planetary Systems?

A. V. Krivov, C. Eiroa, T. Löhne +24

(abridged) Infrared excesses associated with debris disk host stars detected so far peak at wavelengths around ~100μm or shorter. However, six out of 31 excess sources in the Hersc…

astro-ph.EP2009★ 72 cited

A possible architecture of the planetary system HR 8799

Martin Reidemeister, Alexander V. Krivov, Tobias O. B. Schmidt +4

HR8799 is a nearby A-type star with a debris disk and three planetary candidates recently imaged directly. We undertake a coherent analysis of various portions of observational dat…

astro-ph.EP2009★ 23 cited

New astrometry and photometry for the companion candidates of CT Cha

T. O. B. Schmidt, R. Neuhäuser, M. Mugrauer +2

In our ongoing search for close and faint companions around T Tauri stars in the Chamaeleon star-forming region, we recently (Schmidt et al 2008b) presented direct observations and…

astro-ph.EP2009★ 1 cited

Finding new sub-stellar co-moving companion candidates - the case of CT Cha

T. O. B. Schmidt, R. Neuhäuser

We have searched for close and faint companions around T Tauri stars in the Chamaeleon star forming region. Two epochs of direct imaging data were taken with the VLT Adaptive Optic…