SIMBAD references

2011MNRAS.416.2341K - Mon. Not. R. Astron. Soc., 416, 2341-2358 (2011/September-3)

Confirmation of the VeLLO L1148-IRS: star formation at very low (column) density.

KAUFFMANN J., BERTOLDI F., BOURKE T.L., MYERS P.C., LEE C.W. and HUARD T.L.

Abstract (from CDS):

We report the detection of a compact (∼5 arcsec; about 1800 au projected size) CO outflow from L1148-IRS. This confirms that this Spitzer source is physically associated with the nearby ( ≈ 325 pc) L1148 dense core. Radiative transfer modelling suggests an internal luminosity of 0.08 to 0.13 L☉. This validates L1148-IRS as a Very Low Luminosity Object (VeLLO; L ≤ 0.1 L☉). The L1148 dense core has unusually low densities and column densities for a star-forming core. It is difficult to understand how L1148-IRS might have formed under these conditions. Independent of the exact final mass of this VeLLO (which is likely <0.24 M☉), L1148-IRS and similar VeLLOs might hold some clues about the isolated formation of brown dwarfs.

Based on observations with the IRAM 30-m telescope and the IRAM Plateau de Bure Interferometer.


Abstract Copyright: 2011 California Institute of Technology. Government sponsorship acknowledged. Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): brown dwarfs - stars: formation - stars: low-mass - ISM: individual objects: L1148 - ISM: jets and outflows - infrared: stars

Simbad objects: 31

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