The Spitzer Space Telescope allows for the first time to search systematically for very low luminosity (= 0.1 L_sun) objects (VeLLOs) associated with dense molecular cores. They may be the first candidate Class 0 sources with sub-stellar masses. We describe such a source in the dense molecular core L1148. VeLLO natal cores show properties that are unusual for star-forming cores. The low luminosity and in some cases the lack of prominent outflow could be the result of the small gas supply near the VeLLO.
@article{arxiv.astro-ph/0510501,
title = {Spitzer Discovery of Very Low Luminosity Objects},
author = {Jens Kauffmann and Frank Bertoldi and Neal. J. Evans and the c2d Collaboration},
journal= {arXiv preprint arXiv:astro-ph/0510501},
year = {2009}
}
Comments
4 pages, 4 figures. Accepted for the Astronomical Notes for the special issue containing the proceedings of the "Ultra low-mass star formation and evolution" workshop