A search for pre-substellar cores and proto-brown dwarf candidates in Taurus: multiwavelength analysis in the B213-L1495 clouds

Abstract In anattempt to study whether the formation of brown dwarfs (BDs) takes place as a scaled-down version of low-mass stars, we conducted Institut de Radioastronomie Millimetrique (IRAM) 30 m/MAMBO-II observations at 1.2 mm in a sample of 12 proto-BD candidates selected from Spitzer/IRAC data...

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Bibliographic Details
Published in:Monthly notices of the Royal Astronomical Society 2012-08, Vol.424 (4), p.2778-2791
Main Authors: Palau, Aina, de Gregorio-Monsalvo, I., Morata, Ò., Stamatellos, D., Huélamo, N., Eiroa, C., Bayo, A., Morales-Calderón, M., Bouy, H., Ribas, Á., Asmus, D., Barrado, D.
Format: Article
Language:English
Subjects:
Arrays
Astronomical instruments
Astrophysics
Brown dwarfs
Clouds
Condensing
dust, extinction
ISM: clouds
Spectral emittance
Star & galaxy formation
Stars
stars: formation
stars: individual: SSTB213 J041757
stars: individual: SSTB213 J042118
Strategy
Wavelengths
Citations: Items that cite this one
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Summary:Abstract In anattempt to study whether the formation of brown dwarfs (BDs) takes place as a scaled-down version of low-mass stars, we conducted Institut de Radioastronomie Millimetrique (IRAM) 30 m/MAMBO-II observations at 1.2 mm in a sample of 12 proto-BD candidates selected from Spitzer/IRAC data in the B213-L1495 clouds in Taurus. Subsequent observations with the Caltech Submillimetre Observatory at 350 μm, Very Large Array at 3.6 and 6 cm, and IRAM 30 m/EMIR in the 12CO (1-0), 13CO (1-0) and N2H+ (1-0) transitions were carried out towards the two most promising Spitzer/IRAC source(s), J042118 and J041757. J042118 is associated with a compact (
ISSN:0035-8711
1365-2966
DOI:10.1111/j.1365-2966.2012.21390.x