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Interferometric Observations for O-Containing Organic Molecules Towards Orion-KL

Published online by Cambridge University Press:  12 April 2016

Y. C. Minh ,
M. Ohishi ,
D. G. Roh  and
M. Ishiguro
Y. C. Minh
Affiliation:
Daeduk Radio Astronomy Observatory Korea Astronomy Observatory, Hwaam, Yusong, Daejon 305-348, Korea
M. Ohishi
Affiliation:
Nobeyama Radio Observatory Nobeyama, Minamimaki, Minamisaku, Nagano 384-13, Japan
D. G. Roh
Affiliation:
Nobeyama Radio Observatory Nobeyama, Minamimaki, Minamisaku, Nagano 384-13, Japan
M. Ishiguro
Affiliation:
Nobeyama Radio Observatory Nobeyama, Minamimaki, Minamisaku, Nagano 384-13, Japan

Abstract

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High spatial resolution observation (~ 5 arcsec) were made for CH3OH, HCOOCH3, and (CH3)2O toward Orion-KL using the Nobeyama Millimeter Array. The spatial distribution of CH3OH appears to be well elongated along the line connecting IRc2 and “the southern condensation (SC)”. The HCOOCH3 and (CH3)2O emissions appear to be well concentrated to SC with an angular size of ~ 6.5 arcsec. We derive the total column densities 6.8 × 1017cm−2, 1.4 × 1016cm−2 and 2.7 × 1016cm−2 for CH3OH, HCOOCH3, and (CH3)2O, respectively, at the core of SC.

Type
3. Astronomical Results and Prospects
Information
International Astronomical Union Colloquium , Volume 140: Astronomy with Millimeter and Submillimeter Wave Interferometry , 1994 , pp. 238 - 240
Copyright
Copyright © Astronomical Society of the Pacific 1994

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