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Multiplicity study of T Tauri starsin the Lupus star forming region

Published online by Cambridge University Press:  13 January 2020

M. Mugrauer
Affiliation:
Astrophysical Institute and University Observatory Jena, Schillergäßchen 2, D-07745 Jena, Germany email: markus@astro.uni-jena.de
C. Ginski
Affiliation:
Leiden Observatory, Leiden University, PO Box 9513, 2300, RA Leiden, The Netherlands
N. Vogt
Affiliation:
Instituto de Física y Astronomía, Facultad de Ciencias, Universidad de Valparaíso, Av. Gran Bretaña, 1111, Valparaíso, Chile
R. Neuhäuser
Affiliation:
Astrophysical Institute and University Observatory Jena, Schillergäßchen 2, D-07745 Jena, Germany email: markus@astro.uni-jena.de
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Abstract

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We carried out a high contrast imaging search for (sub)stellar companions of young pre-main sequence stars in the Lupus star forming region. For this project we utilized NACO/ESO-VLT, operated at the Paranal observatory. On this poster, we presented the results of this survey. In several observing campaigns we could obtain diffraction limited deep IR imaging data and detected faint co-moving companions around our targets, whose astro- and photometry was determined in all observing epochs. The co-moving companions found in our survey exhibit angular separations in the range between about 0.1 and a few arcsecs, i.e. projected separations between about 10 and a few hundreds of au, at the average distance of our targets of about 140 pc. Beside several new binary and triple star systems, whose multiplicity was revealed in this survey, also faint co-moving companions in the substellar mass regime could be identified close to some of our targets.

Type
Contributed Papers
Copyright
© International Astronomical Union 2020 

References

Mugrauer, M., et al. 2019, in preparationGoogle Scholar
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