Probable association of T Tauri stars with the L1014 dense core

Details Probable association of T Tauri stars with the L1014 dense core Probable association of T Tauri stars with the L1014 dense core

2006-08-23

arxiv.org/abs/astro-ph/0608477v2

Astronomy and Astrophysics

Astrophysics

5 pages, 5 figures, to be published in Vol.58, No.5, October 25, 2006

Scientific paper

Using the Wide Field Grism Spectrograph 2 (WFGS2), we have carried out slit-less spectroscopy, g'r'i' photometry, and slit spectroscopy on the L1014 dense core. We detected three Halpha emission line stars. We interpret one as 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 L1014. Adopting an age range for T Tauri stars, 1-10 Myr, the color-magnitude diagram suggests a distance of ~400-900 pc, rather than the previously assumed distance, 200 pc. This could strongly affect on the mass estimate of L1014-IRS, which is thought to be either a very young protostar or proto-brown dwarf.

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