Molecular gas in the star-forming region IRAS 08589-4714 (Research note)

H. P. SALDANO; J. VASQUEZ; C. E. CAPPA; M. GOMEZ; N. U. DURONEA

RESEARCH IN ASTRONOMY AND ASTROPHYSICS

NATL ASTRONOMICAL OBSERVATORIES

Lugar: Beijing; Año: 2016 vol. 594 p. 2 - 5

1674-4527

Aims. We present an analysis of the region IRAS 08589−4714 with the aim of characterizing the molecular environment.Methods. To analyze the distribution and characteristics of the molecular gas linked to the IRAS source we observed the 12 CO(3−2),13CO(3−2), C18 O(3−2), HCO+ (3−2), and HCN(3−2) molecular lines in a region of 150 × 150 , centered on the IRAS source.Results. The molecular gas distribution reveals a molecular clump coincident with IRAS 08589−4714 and with a dust clump detectedat 1.2mm. The molecular clump is 0.45 pc in radius, and its mass and H2 volume density are 310 M and 1.2×104 cm−3 , respectively.Two overdensities were identified within the clump in HCN(3−2) and HCO+ (3−2) lines. A comparison of the LTE and virial massessuggests that the clump is collapsing in regions which harbor young stellar objects. An analysis of the molecular lines suggests thatthey are driving molecular outflows.