102 citations · 987 across the 35 of their papers we have counts for
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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…
Photometric study of the OB star clusters NGC 1502 and NGC 2169 and mass estimation of their members at the University Observatory Jena
M. M. Hohle, T. Eisenbeiss, M. Mugrauer +7
In this work we present detailed photometric results of the trapezium like galactic nearby OB clusters NGC 1502 and NGC 2169 carried out at the University Observatory Jena. We dete…
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…
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…
Variability of young stars: Determination of rotational periods of weak-line T Tauri stars in the Cepheus-Cassiopeia star-forming region
A. Koeltzsch, M. Mugrauer, St. Raetz +11
We report on observation and determination of rotational periods of ten weak-line T Tauri stars in the Cepheus-Cassiopeia star-forming region. Observations were carried out with th…
Photometric monitoring of the young star Par 1724 in Orion
R. Neuhaeuser, A. Koeltzsch, St. Raetz +12
We report new photometric observations of the 200000 year old naked weak-line run-away T Tauri star Par 1724, located north of the Trapezium cluster in Orion. We observed in the br…