IAR   05382
INSTITUTO ARGENTINO DE RADIOASTRONOMIA
Unidad Ejecutora - UE
artículos
Título:
The molecular complex associated with RCW 121 and RCW 122
Autor/es:
ARNAL. E. M., DURONEA N. U., TESTORI J.C.
Revista:
REVISTA MEXICANA DE ASTRONOMíA Y ASTROFíSICA
Editorial:
UNAM. Instituto de Astronomía
Referencias:
Año: 2009 vol. 35 p. 48 - 49
ISSN:
0185-1101
Resumen:
The distribution of the molecular gas towards the region containing the open cluster HM 1, the Wolf-Rayet stars WR 87, WR 89, and WR 91, and the star forming regions RCW 121 and RCW 122 is analyzed with the aim of looking for a possible physical relationship among these objects. Using ^{12}CO observations carried out at λ ˜ 2.6 mm with the 4 m NANTEN radiotelescope, and adopting a distance of 5 kpc for RCW 121 and RCW 122, a giant molecular cloud (GMC) having a lineal extent of ˜ 100×20 pc is found to be associated with these galactic star-forming regions. The total mass of this GMC is of the order of 1.2×10^6 solar masses and its mean radial velocity is about -15 km s^{-1}.