A COMPLETE Look at the Use ofIRASEmission Maps to Estimate Extinction and Dust Temperature | Zendy

Scott Schnee | Zendy; Naomi A. Ridge | Zendy; Alyssa Goodman | Zendy; Jason G. Li | Zendy

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A COMPLETE Look at the Use ofIRASEmission Maps to Estimate Extinction and Dust Temperature

Author(s) -

Scott Schnee,

Naomi A. Ridge,

Alyssa Goodman,

Jason G. Li

Publication year - 2005

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/491729

Subject(s) - ophiuchus , extinction (optical mineralogy) , astrophysics , serpens , physics , molecular cloud , emissivity , astronomy , infrared , cosmic dust , optical depth , stars , optics , meteorology , aerosol

We have created new dust temperature and column density maps of Perseus,Ophiuchus and Serpens using 60 and 100 micron data from the IRIS recalibrationof IRAS data. We describe an optimized method for finding the dust temperature,emissivity spectral index, and optical depth using optical and NIR extinctionmaps. The creation of these temperature and extinction maps (covering tens ofsquare degrees of molecular clouds) is one of the first results from theongoing COordinated Molecular Probe Line Extinction Thermal Emission (COMPLETE)Survey of Star Forming regions. However, while the extinctions derived from theIRIS emission maps are globally accurate, we warn that FIR emission is not agood proxy for extinction on the scale of one pixel (5').Comment: 24 pages, 8 figures, 3 tables Accepted to Ap

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