UBVRI images of Barnard 207 Virtual Observatory Resource

Authors
  1. Togi A.
  2. Witt A.N.
  3. St John D.
  4. Published by
    CDS
Abstract

Barnard 207 (B207, LDN 1489, LBN 777), also known as the Vulture Head nebula, is a cometary globule in the Taurus-Auriga-Perseus Molecular Cloud region. B207 is known to host a Class I protostar, IRAS 04016+2610, located at a projected distance of ~8400au from the dense core centre. Using imaging and photometry over a wide wavelength range, from UV to sub-mm, we study the physical properties of B207 and the dust grains contained within. The core density, temperature, and mass are typical of other globules found in the Milky Way interstellar medium (ISM). The increase in the dust albedo with increasing optical wavelengths, along with the detection of coreshine in the near infrared, indicates the presence of larger dust grains in B207. The measured optical, near-, mid- and far-infrared intensities are in agreement with the CMM+AMM and CMM+AMMI dust grain type of the THEMIS model, suggesting mantle formation on the dust grains throughout the globule. We investigate the possibility of turbulence being responsible for diffusing dust grains from the central core to external outer layers of B207. However, in situ formation of large dust grains cannot be excluded.

Keywords
  1. Bok globules
  2. Interstellar clouds
  3. Molecular clouds
  4. Infrared photometry
  5. Optical astronomy
  6. Wide-band photometry
Bibliographic source Bibcode
2017A&A...605A..99T
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/605/A99
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/605/A99
Document Object Identifer DOI
doi:10.26093/cds/vizier.36050099

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History

2017-09-18T09:07:41Z
Resource record created
2017-09-18T08:17:21Z
Updated
2017-09-18T09:07:41Z
Created

Contact

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CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
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cds-question@unistra.fr