TY  - JOUR
AU  - Kawamura, J.
AU  - Hunter, T. R.
AU  - Tong, C. Y. E.
AU  - Blundell, R.
AU  - Papa, D. C.
AU  - Patt, F.
AU  - Peters, W.
AU  - Wilson, T.
AU  - Henkel, C.
AU  - Goltsman, G.
AU  - Gershenzon, E.
PY  - 2002
DA  - 2002//
TI  - Ground-based terahertz CO spectroscopy towards Orion
T2  - A&A
JO  - A&A
SP  - 271
EP  - 274
VL  - 394
IS  - 1
KW  - HEB mixers
KW  - applications
AB  - Using a superconductive hot-electron bolometer heterodyne receiver on the 10-m Heinrich Hertz Telescope on Mount Graham, Arizona, we have obtained velocity-resolved 1.037 THz CO () spectra toward several positions along the Orion Molecular Cloud (OMC-1) ridge. We confirm the general results of prior observations of high-J CO lines that show that the high temperature, , high density molecular gas, , is quite extended, found along a ~ region centered on BN/KL. However, our observations have significantly improved angular resolution, and with a beam size of we are able to spatially and kinematically discriminate the emission originating in the extended quiescent ridge from the very strong and broadened emission originating in the compact molecular outflow. The ridge emission very close to the BN/KL region appears to originate from two distinct clouds along the line of sight with and ≈ . The former component dominates the emission to the south of BN/KL and the latter to the north, with a turnover point coincident with or near BN/KL. Our evidence precludes a simple rotation of the inner ridge and lends support to a model in which there are multiple molecular clouds along the line of sight towards the Orion ridge.
UR  - https://www.aanda.org/articles/aa/abs/2002/40/aah3839/aah3839.html
UR  - https://doi.org/10.1051/0004-6361:20021090
DO  - 10.1051/0004-6361:20021090
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=322), last updated on Fri, 21 May 2021 12:35:49 -0500
ID  - Kawamura_etal2002
ER  -