ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP). I. Detection of New Hot Corinos with the ACA
Hsu,Shih-Ying1,2; Liu,Sheng-Yuan2; Liu,Tie3; Sahu,Dipen2; Hirano,Naomi2; Lee,Chin-Fei2; Tatematsu,Ken’ichi4,5; Kim,Gwanjeong4; Juvela,Mika6; Sanhueza,Patricio7; He,Jinhua8,9,10; Johnstone,Doug11,12; Qin,Sheng-Li13; Bronfman,Leonardo10; Chen,Huei-Ru Vivien14; Dutta,Somnath2; Eden,David J.15; Jhan,Kai-Syun1,2; Kim,Kee-Tae16,17; Kuan,Yi-Jehng2,18; Kwon,Woojin16,19; Lee,Chang Won16,17; Lee,Jeong-Eun20; Moraghan,Anthony2; Rawlings,M. G.21; Shang,Hsien2; Soam,Archana22; Thompson,M. A.23; Traficante,Alessio24; Wu,Yuefang25,26; Yang,Yao-Lun27; Zhang,Qizhou28
Source PublicationThe Astrophysical Journal
AbstractAbstract We report the detection of four new hot corino sources, G211.47–19.27S, G208.68–19.20N1, G210.49–19.79W, and G192.12–11.10, from a survey study of Planck Galactic Cold Clumps in the Orion Molecular Cloud Complex with the Atacama Compact Array. Three sources had been identified as low-mass Class 0 protostars in the Herschel Orion Protostar Survey. One source in the λ Orionis region is first reported as a protostellar core. We have observed abundant complex organic molecules (COMs), primarily methanol but also other oxygen-bearing COMs (in G211.47–19.27S and G208.68–19.20N1) and the molecule of prebiotic interest NH2CHO (in G211.47–19.27S), signifying the presence of hot corinos. While our spatial resolution is not sufficient to resolve most of the molecular emission structure, the large line width and high rotational temperature of COMs suggest that they likely reside in the hotter and innermost region immediately surrounding the protostar. In G211.47–19.27S, the D/H ratio of methanol ([CH2DOH]/[CH3OH]) and the 12C/13C ratio of methanol ([CH3OH]/[13CH3OH]) are comparable to those of other hot corinos. Hydrocarbons and long-carbon-chain molecules such as c-C3H2 and HCCCN are also detected in the four sources, likely tracing the outer and cooler molecular envelopes.
KeywordAstrochemistry Interstellar molecules Star-forming regions Low mass stars Protostars
WOS IDIOP:0004-637X-898-2-ab9f3a
PublisherThe American Astronomical Society
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Document Type期刊论文
Affiliation1.National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan (R.O.C.);
2.Institute of Astronomy and Astrophysics, Academic Sinica, 11F of Astronomy-Mathematics Building, AS/NTU, No.1, Sec. 4, Roosevelt Rd, Taipei 10617, Taiwan (R.O.C.);
3.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, People’s Republic of China
4.Nobeyama Radio Observatory, National Astronomical Observatory of Japan, National Institutes of Natural Sciences, 462-2 Nobeyama, Minamimaki, Minamisaku, Nagano 384-1305, Japan
5.Department of Astronomical Science, SOKENDAI (The Graduate University for Advanced Studies), 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
6.Department of Physics, P.O.Box 64, FI-00014, University of Helsinki, Finland
7.National Astronomical Observatory of Japan, National Institutes of Natural Sciences, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
8.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, People’s Republic of China
9.Chinese Academy of Sciences South America Center for Astronomy, National Astronomical Observatories, CAS, Beijing 100101, People’s Republic of China
10.Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago, Chile
11.NRC Herzberg Astronomy and Astrophysics, 5071 West Saanich Rd, Victoria, BC, V9E 2E7, Canada
12.Department of Physics and Astronomy, University of Victoria, Victoria, BC, V8P 5C2, Canada
13.Department of Astronomy, Yunnan University, and Key Laboratory of Astroparticle Physics of Yunnan Province, Kunming 650091, People’s Republic of China
14.Institute of Astronomy and Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan
15.Astrophysics Research Institute, Liverpool John Moores University, iC2, Liverpool Science Park, 146 Brownlow Hill, Liverpool, L3 5RF, UK
16.Korea Astronomy and Space Science Institute (KASI), 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Republic of Korea
17.University of Science and Technology, Korea (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
18.Department of Earth Sciences, National Taiwan Normal University, Taipei, Taiwan (R.O.C.)
19.Department of Earth Science Education, Seoul National University (SNU), 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
20.School of Space Research, Kyung Hee University, 1732, Deogyeong-Daero, Giheung-gu Yongin-shi, Gyunggi-do 17104, Republic of Korea
21.East Asian Observatory, 660 N. A’ohōkū Place, University Park, Hilo, HI 96720, USA
22.SOFIA Science Center, USRA, NASA Ames Research Center, M.S.-12, N232, Moffett Field, CA 94035, USA
23.Centre for Astrophysics Research, School of Physics Astronomy & Mathematics, University of Hertfordshire, College Lane, Hatfield, AL10 9AB, UK
24.INAF-IAPS, via Fosso del Cavaliere, 100. I-00133, Rome, Italy
25.Department of Astronomy, School of Physics, Peking University, Beijing, 1000871, People’s Republic of China
26.Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing, 100871, People’s Republic of China
27.Department of Astronomy, University of Virginia, Charlottesville, VA 22904, USA
28.Center for Astrophysics ∣ Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
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Hsu,Shih-Ying,Liu,Sheng-Yuan,Liu,Tie,et al. ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP). I. Detection of New Hot Corinos with the ACA[J]. The Astrophysical Journal,2020,898(2).
APA Hsu,Shih-Ying.,Liu,Sheng-Yuan.,Liu,Tie.,Sahu,Dipen.,Hirano,Naomi.,...&Zhang,Qizhou.(2020).ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP). I. Detection of New Hot Corinos with the ACA.The Astrophysical Journal,898(2).
MLA Hsu,Shih-Ying,et al."ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP). I. Detection of New Hot Corinos with the ACA".The Astrophysical Journal 898.2(2020).
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