2016/03/15 by S. Paron, S. Parón, M. Celis Peña +12
Earth and Planetary Sciences · Physics and Astronomy · #Astrophysics and Star Formation Studies #Astrophysics of Galaxies (astro-ph.GA) #Atmospheric Ozone and Climate #FOS: Physical sciences #Stellar, planetary, and galactic studies #astro-ph.GA
paper · pdf · doi:10.48550/arxiv.1603.04760
accepted for publication in Boletín de la Asociación Argentina de Astronomía (BAAA)
arxiv created 2016/03/15 · openalex publication_date 2016/03/15 · arxiv updated 2016/03/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The R Coronae Australis dark cloud is one of the closest star-forming regions to the Sun. The cloud is known to be very active in star formation, harboring many Herbig-Haro objects (HHs) and Molecular Hydrogen emission-line Objects (MHOs). In this work we present results from molecular observations (a 5.5'×5.5' map of 12CO J=3-2 and HCO+ J=4-3, and a single spectrum of N2H+ J=4-3) obtained with the Atacama Submillimeter Telescope Experiment (ASTE) towards the R CrA dark cloud with an angular and spectral resolution of 22" and 0.11 km s-1, respectively. From the 12CO J=3-2 line we found kinematical spectral features strongly suggesting the presence of outflows towards a region populated by several HHs and MHOs. Moreover, most of these objects lie within an HCO+ maximum, suggesting that its emission arises from an increasement of its abundance due to the chemistry triggered by the outflow activity. Additionally, we are presenting the first reported detection of N2H+ in the J=4-3 line towards the R CrA dark cloud.