J/A+A/605/A99ivo://CDS.VizieR/J/A+A/605/A99doi:10.26093/cds/vizier.36050099CDSTogi A.Witt A.N.St John D.2017-09-18T08:17:21Z2017-09-18T09:07:41ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frbok-globulesinterstellar-cloudsmolecular-cloudsinfrared-photometryvisible-astronomybroad-band-photometryBarnard 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.2017A&A...605A..99Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/605/A99CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/605/A99https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/605/A99http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/605/A99https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/605/A99https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/605/A99http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/605/A99GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/605/A99/list (List of fits images)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/605/A99/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/605/A99/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/605/A99/list?GETtext/xml+votable180.050000true61.1874526.315270.0055555555555555566/1154https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/605/A99?format=asciiInfraredOpticaldefaultJ/A+A/605/A99/listList of fits imagesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainScaleScale of the imagearcsec/pixinstr.scalefloatNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintObs.DateObservatiob date (YYYY-MM-DDThh:mm:ss.ss)time.epochcharsizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitschar