Multi-wavelength observations of the massive YSO RAFGL7009S

Details Multi-wavelength observations of the massive YSO RAFGL7009S Multi-wavelength observations of the massive YSO RAFGL7009S

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26a...361.1095d&link_type=abstract

Astronomy and Astrophysics, v.361, p.1095-1111 (2000)

Astronomy and Astrophysics

Astrophysics

6

Ism: Dust, Extinction, Ism: Individual Objects: Rafgl70009S, Infrared: Ism: Continuum, Infrared: Ism: Lines And Bands

Scientific paper

We present multi-wavelength observations of the young stellar object RAFGL7009S. The analysis combines single dish (IRAM 30m), interferometric (Plateau de Bure Interferometer), as well as infrared (UKIRT and ISO) observations. We use those data to globally describe the source (Spectral Energy Distribution, density) and its environment. We also derive the position of the central object (associated with the HII region) to 1\arc precision using the interferometer observations. We have observed HDO and CH_3OD in single dish measurements and derive the D/H ratio for water and methanol in the gas phase. Laboratory experiments allow us to derive upper limits to the enrichment of the same species in the solid phase. It is argued that CH_3OH seems to be a good tracer for grain deuterium enrichment in the environment of RAFGL7009S. Observations of HCN and HNC isomers indicate that along the line of sight, two velocity independent temperature regions coexist. Based on observations carried out with the IRAM 30m telescope, Plateau de Bure interferometer, Infrared space Observatory (ISO) and United Kingdom Infrared Telescope (UKIRT). IRAM is supported by INSU/CNRS (France), MPG (Germany) and IGN (Spain). ISO is an ESA project with instruments funded by ESA Member States (especially the PI countries: France, Germany, the Netherlands and the United Kingdom) and with the participation of ISAS and NASA. The United Kingdom Infrared Telescope is operated by the Joint Astronomy Centre on behalf of the U.K. Particle Physics and Astronomy Research Council.

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