2006PASJ...58L..41M


Query : 2006PASJ...58L..41M

2006PASJ...58L..41M - Publ. Astron. Soc. Jap., 58, L41-L45 (2006/October-0)

Probable association of T Tauri stars with the L 1014 dense core.

MORITA A., WATANABE M., SUGITANI K., ITOH Y., UEHARA M., NAGASHIMA C., EBIZUKA N., HASEGAWA T., KINUGASA K. and TAMURA M.

Abstract (from CDS):

Using the Wide Field Grism Spectrograph 2 (WFGS2), we carried out slit-less spectroscopy, g'r'i' photometry, and slit spectroscopy on the L 1014 dense core. We detected three Hα emission-line stars. We interpret one as being a weak-line T Tauri star (WTTS) and the others as classical T Tauri stars (CTTS). Since their g'-i' colors and/or classified spectral types are consistent with those of T Tauri stars and two of them show less extinction than the cloud, these three stars are likely to be T Tauri stars associated with L 1014. Adopting an age range for T Tauri stars, 1-10Myr, the color-magnitude diagram suggests a distance of ∼ 400-900 pc, rather than the previously assumed distance, 200pc. This could strongly affect the mass estimate of L 1014-IRS, which is thought to be either a very young protostar or proto-brown dwarf.

Abstract Copyright:

Journal keyword(s): ISM: globules - ISM: individual (L 1014) - stars: distances - stars: formation - stars: low-mass, brown dwarfs - stars: pre-main sequence

Nomenclature: Fig.1, Table 1: [MWS2006] N (Nos 1-3).

Simbad objects: 9

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Number of rows : 9
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 NAME Per Arm PoG 03 30 +45.0           ~ 1513 0
2 2MASS J21232969+5003128 TT? 21 23 29.6932881792 +50 03 12.831965496           ~ 1 0
3 HBHA 4704-23 Em* 21 23 44.7313711512 +49 59 47.829610824     12.1     K2.5 6 0
4 2MASS J21235851+4958086 Em* 21 23 58.5178998648 +49 58 08.650180452     13.1     K6.5 6 0
5 Barnard 362 cor 21 24 04.0 +50 09 49           ~ 11 0
6 LDN 1014 cor 21 24 05.9 +49 59 07           ~ 93 0
7 NAME LDN 1014 IRS Y*O 21 24 07.58 +49 59 08.9           ~ 81 0
8 BD+25 4655 HS* 21 59 41.9748629928 +26 25 57.403455672 8.27 9.39 9.68     sdO6 118 0
9 NGC 5564 ? ~ ~           ~ 1 0

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