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The Relation Between Dust and Gas in the Taurus Molecular Cloud

Published online by Cambridge University Press:  25 November 2011

M. Röllig ,
R. Simon ,
V. Ossenkopf ,
J. Stutzki ,
J.L. Pineda ,
P.F. Goldsmith ,
N.L. Chapman ,
R. Snell ,
D. Li  and
L. Cambrésy
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J.L. Pineda
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109-8099, USA
P.F. Goldsmith
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109-8099, USA
N.L. Chapman
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109-8099, USA
R. Snell
Affiliation:
Department of Astronomy, LGRT 619, University of Massachusetts, 710 North Pleasant Street, Amherst, MA 01003, USA
D. Li
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109-8099, USA
L. Cambrésy
Affiliation:
Observatoire Astronomique de Strasbourg, 67000 Strasbourg, France
C. Brunt
Affiliation:
Astrophysics Group, School of Physics, University of Exeter, Stocker Road, Exeter, EX4 4QL, UK
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Abstract

We report a study of the relation between dust and gas over a 100 deg2 area in the Taurus molecular cloud. We compare the H2 column density derived from dust extinction with the CO column density derived from the 12CO and 13CO J = 1 → 0 lines. We derive the visual extinction from reddening determined from 2MASS data. The comparison is done at an angular size of 200′′, corresponding to 0.14 pc at a distance of 140 pc. We find that the relation between visual extinction AV and N(CO) is linear between AV ≃ 3 and 10 mag in the region associated with the B213–L1495 filament. In other regions the linear relation flattens for AV ≳ 4 mag. Accounting for the observed relation between the column density of CO and CO2 ices and AV, we find a linear relationship between the column of carbon monoxide and dust for observed visual extinctions up to the maximum value in our data  ≃23  mag.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 52: Conditions and Impact of Star Formation , 2011 , pp. 157 - 160
Copyright
© EAS, EDP Sciences 2011

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References

Bergin, E.A., Alves, J., Huard, T., & Lada, C.J., 2002, ApJ, 570, L101 CrossRef
Frerking, M.A., Langer, W.D., & Wilson, R.W., 1982, ApJ, 262, 590 CrossRef
Goldsmith, P.F., Heyer, M., Narayanan, G., et al., 2008, ApJ, 680, 428 CrossRef
Kramer, C., Alves, J., Lada, C.J., et al., 1999, A&A, 342, 257
Lada, C.J., Lada, E.A., Clemens, D.P., & Bally, J., 1994, ApJ, 429, 694 CrossRef
Pineda, J.L., Goldsmith, P.F., Chapman, N., et al., 2010, ApJ, 721, 686 CrossRef
Visser, R., van Dishoeck, E.F., & Black, J.H., 2009, A&A, 503, 323
Whittet, D.C.B., Goldsmith, P.F., & Pineda, J.L., 2010, ApJ, 720, 259 CrossRef
Whittet, D.C.B., Shenoy, S.S., Bergin, E.A., et al., 2007, ApJ, 655, 332 CrossRef