Yun, Hyeong-Sik, Lee, Jeong-Eun, Choi, Yunhee, Evans, Neal J., II, Offner, Stella S. R., Heyer, Mark H., Gaches, Brandt A. L., Lee, Yong-Hee, Baek, Giseon ORCID: 0000-0002-2814-1978, Choi, Minho, Kang, Hyunwoo, Lee, Seokho, Tatematsu, Ken'ichi, Yang, Yao-Lun, Chen, How-Huan, Lee, Youngung, Jung, Jaehoon, Lee, Changhoon and Cho, Jungyeon (2021). TIMES. I. A Systematic Observation in Multiple Molecular Lines toward the Orion A and Ophiuchus Clouds. Astrophys. J. Suppl. Ser., 256 (1). BRISTOL: IOP PUBLISHING LTD. ISSN 1538-4365

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Abstract

We have used the Taeduk Radio Astronomy Observatory to observe the Orion A and Ophiuchus clouds in the J = 1-0 lines of (CO)-C-13, (CO)-O-18, HCN, HCO+, and N2H+ and the J= 2-1 line of CS. The fully sampled maps with uniform noise levels are used to create moment maps. The variations of the line intensity and velocity dispersion with total column density, derived from dust emission maps, are presented and compared to previous work. The CS line traces dust column density over more than one order of magnitude, and the N2H+ line best traces the highest column density regime (log(NH2) > 22.8). Line luminosities, integrated over the cloud, are compared to those seen in other galaxies. The HCO+-to-HCN luminosity ratio in the Orion A cloud is similar to that of starburst galaxies, while that in the Ophiuchus cloud is in between those of active galactic nuclei and starburst galaxies.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Yun, Hyeong-SikUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lee, Jeong-EunUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Choi, YunheeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Evans, Neal J., IIUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Offner, Stella S. R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Heyer, Mark H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gaches, Brandt A. L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lee, Yong-HeeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Baek, GiseonUNSPECIFIEDorcid.org/0000-0002-2814-1978UNSPECIFIED
Choi, MinhoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kang, HyunwooUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lee, SeokhoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tatematsu, Ken'ichiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Yang, Yao-LunUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Chen, How-HuanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lee, YoungungUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jung, JaehoonUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lee, ChanghoonUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cho, JungyeonUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-600421
DOI: 10.3847/1538-4365/ac090e
Journal or Publication Title: Astrophys. J. Suppl. Ser.
Volume: 256
Number: 1
Date: 2021
Publisher: IOP PUBLISHING LTD
Place of Publication: BRISTOL
ISSN: 1538-4365
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
PRINCIPAL COMPONENT ANALYSIS; STAR-FORMATION; RHO-OPHIUCHI; DENSE CORES; SUPERSONIC TURBULENCE; INITIAL CONDITIONS; POWER SPECTRUM; DARK CLOUDS; GAS; EVOLUTIONMultiple languages
Astronomy & AstrophysicsMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/60042

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