Low-mass star formation in CG1: a diffraction limited search for pre-main sequence stars next to NXPup.
Abstract
Using adaptive optics at the ESO 3.6m telescope, we obtained diffraction limited JHK-images of the region around the Herbig AeBe star NX Pup. We clearly resolved the close companion (sep. 0.128") to NX Pup - originally discovered by HST - and measured its JHK magnitudes. A third object at a separation of 7.0" from NX Pup was identified as a classical T Tauri star so that NX Pup may in fact form a hierarchical triple system. We discuss the evolutionary status of these stars and derive estimates for their spectral types, luminosities, masses and ages.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- June 1995
- DOI:
- 10.48550/arXiv.astro-ph/9505054
- arXiv:
- arXiv:astro-ph/9505054
- Bibcode:
- 1995A&A...298..818B
- Keywords:
-
- STARS: PRE-MAIN SEQUENCE;
- ISM: INDIVIDUAL: CG1;
- STARS: NX PUP;
- TECHNIQUES: MISCELLANEOUS;
- Astrophysics
- E-Print:
- Latex using l-aa-ps.sty with links to 5 postscript figures. Complete postscript version also available at http://lucky.astro.uni-wuerzburg.de/ Accepted for publication in A&