Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aj....119.2960m&link_type=abstract
The Astronomical Journal, Volume 119, Issue 6, pp. 2960-2967.
Astronomy and Astrophysics
Astronomy
6
Ism: Clouds, Ism: Individual (Sandqvist 187=Norma Molecular Cloud), Ism: Molecules, Ism: Structure, Stars: Formation, Stars: Pre-Main-Sequence
Scientific paper
We report observations at millimeter and near-infrared wavelengths of the region near IRAS 16295-4452 seen toward the Sa 187 filamentary dark cloud in the southern constellation Norma. Observations in the main rotational transitions of CO, 13CO, CS, and HCN reveal a new dense cloud core associated with IRAS 16295-4452. The core has diameter ~0.3 pc and total mass ~35 Msolar. Near-infrared imaging of the same region shows that the reddest (H-K=2.9) source seen in our images, which is undetected in the J image, is located about 11" from IRAS 16295-4452 and is likely to be the near-infrared counterpart of the IRAS source. The millimeter observations reveal the presence of a molecular outflow with lobes extending in opposite directions from IRAS 16295-4452. The shape of the spectral energy distribution between 1.25 and 100 μm suggests that IRAS 16295-4452 is a Class I protostar with total luminosity about 35 Lsolar. Based on observations collected at the European Southern Observatory, La Silla, Chile.
Jessop Nick E.
Moreira Miguel C.
Santos Carlos A.
Yun Joao Lin
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