Low-mass star formation in CG1: a diffraction limited search for pre-main sequence stars next to NX Pup
Astrophysics
2007-05-23 v1
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.
Cite
@article{arxiv.astro-ph/9509051,
title = {Low-mass star formation in CG1: a diffraction limited search for pre-main sequence stars next to NX Pup},
author = {W. Brandner and J. Bouvier and E. K. Grebel and E. Tessier and D. de Winter and J. -L. Beuzit},
journal= {arXiv preprint arXiv:astro-ph/9509051},
year = {2007}
}
Comments
uuencoded compressed postscript. The preprint is also available at http://www.ast.cam.ac.uk/preprint/PrePrint.html