Astronomy and Astrophysics – Astronomy
Scientific paper
May 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009rmxac..35..293r&link_type=abstract
XII Latin American IAU Regional Meeting (Eds. G. Magris, G. Bruzual, & L. Carigi) Revista Mexicana de Astronomía y Astrofísica (
Astronomy and Astrophysics
Astronomy
Scientific paper
We present a study of the molecular gas towards two particular regions of Ara OB1 which are related to stellar formation activity. They are the bright Rim Nebula (NGC 6188) and the dark cloud Sandqvist 182. Both regions signal the presence of a ``Photo Dominated Region'' (PDR) between the HII region and nearby dark clouds. For the case of NGC 6188 the PDR is seen projected onto the plane of the sky almost edge on, clearly showing the interface between the ionized medium (RCW 108) and the molecular complex. Based on ^{12}CO (HPBW=2'.7) and ^{13}CO (HPBW=2'.6) (J=1 → 0) lines observations carried out with the NANTEN telescope, the molecular gas distribution is analyzed. Along NGC 6188 several well defined molecular clumps are found and it is revealed a clear velocity gradient of -0.25 km s^{-1} pc^{-1} along the north-south direction.
Arnal Marcelo E.
Romero Gisela A.
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