Protostars and Planets VI, Heidelberg, July 15-20, 2013

Poster 1B024

Study of deuterated molecules in the PDR around the UCHII region Mon R2

Treviño-Morales, Sandra P. (Instituto de Radioastronomía Milimétrica (Spain))
Fuente, Asunción (Observatorio Astronómico Nacional (Spain))
Pilleri, Paolo (Los Alamos National Laboratory, Los Alamos)
Kramer, Carsten (Instituto de Radioastronomía Milimétrica (Spain))
González-García, Manuel (Instituto de Radioastronomía Milimétrica (Spain))
Roueff, Evelyn (Luth, Observatoire de Paris, CNRS)
Cernicharo, José (Department of Astrophysics, CAB, INTA-CSIC)
Pety, Jerome (Institut de Radioastronomie Millimétrique (France))

Photo-dominated regions (PDRs) are ubiquitous environments where chemistry and heating are driven by UV photons from nearby O & B stars. The massive star forming region Mon R2 is the closest (830 pc) ultracompact (UC) HII region associated with a PDR. We are carrying out a spectral line survey of the PDR associated with Mon R2 using both ground and space based facilities, with the aim of investigating the chemistry of the molecular gas around the UCHII region and the possible variations due to the different local physical conditions. The last year we performed an unbiased spectral survey at 1, 2 and 3 mm, and discovered an unexpectedly rich chemistry. More than thirty different species (including isotopologues and deuterated compounds) were detected. Here we present the results of deuterated molecules, we derive the deuteration in the region and compare it with hot cores, dark clouds, and other PDRs.

Click here to view poster PDF