2005A&A...433L..33A


Query : 2005A&A...433L..33A

2005A&A...433L..33A - Astronomy and Astrophysics, volume 433, L33-36 (2005/4-2)

HST/NICMOS observations of a proto-brown dwarf candidate.

APAI D., TOTH L.V., HENNING T., VAVREK R., KOVACS Z. and LEMKE D.

Abstract (from CDS):

We present deep HST/NICMOS observations peering through the outflow cavity of the protostellar candidate IRAS 04381+2540 in the Taurus Molecular Cloud-1. A young stellar object as central source, a jet and a very faint and close (0.6'') companion are identified. The primary and the companion have similar colours, consistent with strong reddening. We argue that the companion is neither a shock-excited knot nor a background star. The colour/magnitude information predicts a substellar upper mass limit for the companion, but the final confirmation will require spectroscopic information. Because of its geometry, young age and its rare low-mass companion, this system is likely to provide a unique insight into the formation of brown dwarfs.

Abstract Copyright:

Journal keyword(s): binaries: close - planetary systems: protoplanetary disks - stars: formation - stars: low-mass, brown dwarfs - stars: pre-main sequence

Nomenclature: Fig.1: [ATH2005] IRAS 04381+2540 NIR A (Nos A-B).

Simbad objects: 8

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Number of rows : 8
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 2MASS J04314444+1808315 Y*O 04 31 44.44680 +18 08 31.5384           ~ 165 0
2 [RRN96] GG Tau Bb TT* 04 32 30.28224 +17 31 30.3024           M6+M7.5 83 1
3 V* GG Tau Or* 04 32 30.3506925552 +17 31 40.494063144 14.84 14.78 13.40 11.54   M0e+M2.0e 719 1
4 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4175 0
5 [ATH2005] IRAS 04381+2540 NIR A IR 04 41 12.65 +25 46 35.9           ~ 3 0
6 IRAS 04381+2540 Y*O 04 41 12.67920 +25 46 35.4216           K0-M2 128 1
7 [ATH2005] IRAS 04381+2540 NIR B IR 04 41 12.69 +25 46 36.0           ~ 1 0
8 TMC-1 MoC 04 41 45.9 +25 41 27           ~ 1592 0

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2023.05.30-07:06:21

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