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Journal Articles The Astrophysical Journal Supplement Year : 2010

The Taurus Spitzer Survey: New Candidate Taurus Members Selected Using Sensitive Mid-Infrared Photometry

L. M. Rebull
  • Function : Author
D. L. Padgett
  • Function : Author
C. -E. Mccabe
  • Function : Author
L. A. Hillenbrand
  • Function : Author
K. R. Stapelfeldt
  • Function : Author
A. Noriega-Crespo
  • Function : Author
S. J. Carey
  • Function : Author
T. Brooke
  • Function : Author
T. Huard
  • Function : Author
S. Terebey
  • Function : Author
M. Audard
  • Function : Author
M. Fukagawa
  • Function : Author
M. Güdel
  • Function : Author
G. R. Knapp
  • Function : Author
F. Menard
L. E. Allen
  • Function : Author
J. R. Angione
  • Function : Author
C. Baldovin-Saavedra
  • Function : Author
K. Briggs
  • Function : Author
C. Dougados
N. J. Evans
  • Function : Author
N. Flagey
  • Function : Author
S. Guieu
  • Function : Author
A. M. Glauser
  • Function : Author
P. Harvey
D. Hines
  • Function : Author
W. B. Latter
  • Function : Author
S. L. Skinner
  • Function : Author
S. Strom
  • Function : Author
J. Tromp
  • Function : Author
S. Wolf
  • Function : Author

Abstract

We report on the properties of pre-main-sequence objects in the Taurus molecular clouds as observed in seven mid- and far-infrared bands with the Spitzer Space Telescope. There are 215 previously identified members of the Taurus star-forming region in our ~44 deg2 map these members exhibit a range of Spitzer colors that we take to define young stars still surrounded by circumstellar dust (noting that ~20% of the bona fide Taurus members exhibit no detectable dust excesses). We looked for new objects in the survey field with similar Spitzer properties, aided by extensive optical, X-ray, and ultraviolet imaging, and found 148 new candidate members of Taurus. We have obtained follow-up spectroscopy for about half the candidate sample, thus far confirming 34 new members, three probable new members, and 10 possible new members, an increase of 15%-20% in Taurus members. Of the objects for which we have spectroscopy, seven are now confirmed extragalactic objects, and one is a background Be star. The remaining 93 candidate objects await additional analysis and/or data to be confirmed or rejected as Taurus members. Most of the new members are Class II M stars and are located along the same cloud filaments as the previously identified Taurus members. Among non-members with Spitzer colors similar to young, dusty stars are evolved Be stars, planetary nebulae, carbon stars, galaxies, and active galactic nuclei.

Dates and versions

insu-03625650 , version 1 (31-03-2022)

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Cite

L. M. Rebull, D. L. Padgett, C. -E. Mccabe, L. A. Hillenbrand, K. R. Stapelfeldt, et al.. The Taurus Spitzer Survey: New Candidate Taurus Members Selected Using Sensitive Mid-Infrared Photometry. The Astrophysical Journal Supplement, 2010, 186, pp.259-307. ⟨10.1088/0067-0049/186/2/259⟩. ⟨insu-03625650⟩
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