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The Dust Emissivity Spectral Index in the Starless Core TMC-1C

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arxiv 0911.0892 v1 pith:KIMI3MVM submitted 2009-11-04 astro-ph.GA

The Dust Emissivity Spectral Index in the Starless Core TMC-1C

Scott Schnee , Melissa Enoch , Alberto Noriega-Crespo , Jack Sayers , Susan Terebey , Paola Caselli , Jonathan Foster , Alyssa Goodman
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Jens Kauffmann Deborah Padgett Luisa Rebull Anneila Sargent Rahul Shetty
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keywords dustspectraltmc-1cemissivityindexcorefindmicrons
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In this paper we present a dust emission map of the starless core TMC-1C taken at 2100 microns. Along with maps at 160, 450, 850 and 1200 microns, we study the dust emissivity spectral index from the (sub)millimeter spectral energy distribution, and find that it is close to the typically assumed value of beta = 2. We also map the dust temperature and column density in TMC-1C, and find that at the position of the dust peak (A_V ~ 50), the line-of-sight-averaged temperature is ~7 K. Employing simple Monte Carlo modeling, we show that the data are consistent with a constant value for the emissivity spectral index over the whole map of TMC-1C.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. CARPP: Parametric Radiative-Transfer Fitting of Molecular Cores from Dust Continuum Data

    astro-ph.GA 2026-07 accept novelty 6.0

    CARPP recovers seven core parameters from multi-band dust continuum via layered radiative transfer, achieving <20% average relative error under a stated noise-resolution criterion and classifying TMC-1C as near-critic...