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| CHIMPS2: 13CO J=3→2 emission in the central molecular zone | |
| King, S. M.1; Moore, T. J. T.1; Henshaw, J. D.1; Longmore, S. N.1; Eden, D. J.2; Rigby, A. J.3; Rosolowsky, E.4; Tahani, K.5; Su, Y.6,7; Yiping, A.6,7; Tang, X.8; Ragan, S.9; Liu, T.10; Kuan, Y. -j11,12; Rani, R.13 | |
| 2024-08-07 | |
| Source Publication | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| ISSN | 0035-8711 |
| Volume | 533Issue:1Pages:131-142 |
| Contribution Rank | 7 |
| Abstract | We present the initial data for the (J = 3 -> 2) transition of (CO)-C-13 obtained from the central molecular zone (CMZ) of the Milky Way as part of the CO Heterodyne Inner Milky Way Plane Survey 2 (CHIMPS2). Covering 359 degrees <= l <= 1 degrees and |b| <= 0.5 degrees with an angular resolution of 19 arcsec, velocity resolution of 1 km s(-1), and rms Delta T-A(& lowast;) = 0.59K at these resolutions, our observations unveil the complex structure of the CMZ molecular gas in improved detail. Complemented by the (CO)-C-12 CHIMPS2 data, we estimate a median optical depth of tau(13 )= 0.087. The preliminary analysis yields a median (CO)-C-13 column-density range equal to N((CO)-C-13) = 2-5 x 10(18)cm(-2), median H-2 column density equal to N(H-2) = 4x10(22)cm(-2) to 1x10(23)cm(-2). We derive N(H-2)-based total mass estimates of M(H-2) = 2-6x10(7)M(circle dot), in agreement with previous studies. We analyse the relationship between the integrated intensity of (CO)-C-13 and the surface density of compact sources identified by Herschel Hi-GAL, and find that younger Hi-GAL sources detected at 500 mu m but not at 70 mu m follow the dense gas of the CMZ more closely than those that are bright at 70 mu m. The latter, actively star-forming sources appear to be more associated with material in the foreground spiral arms |
| Keyword | stars: formation ISM: molecules ISM: structure Galaxy: centre submillimetre: ISM |
| DOI | 10.1093/mnras/stae1854 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | C-12/C-13 ISOTOPE RATIO ; GALACTIC STAR-FORMATION ; 1ST DATA RELEASE ; INTERSTELLAR-MEDIUM ; LINE SURVEY ; MILKY-WAY ; GAS ; CLOUDS ; ABUNDANCES ; MASS |
| Funding Project | Science and Technology Facilities Council of the United Kingdom |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001285375900004 |
| Publisher | OXFORD UNIV PRESS |
| Funding Organization | Science and Technology Facilities Council of the United Kingdom |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/6905 |
| Collection | 射电天文研究室_恒星形成与演化研究团组 |
| Corresponding Author | King, S. M.; Moore, T. J. T.; Eden, D. J. |
| Affiliation | 1.Liverpool John Moores Univ, Astrophys Res Inst, IC2,Liverpool Sci Pk,146 Brownlow Hill, Liverpool L3 5RF, England 2.Armagh Observ & Planetarium, Coll Hill, Armagh BT61 9DB, North Ireland 3.Univ Leeds, Sch Phys & Astron, Leeds LS2 9JT, England 4.Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada 5.Kwantlen Polytech Univ, Dept Phys & Astron, 12666 72nd Ave, Surrey, BC V3W 2M8, Canada 6.Chinese Acad Sci, Purple Mt Observ, Nanjing 210034, Peoples R China 7.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210034, Peoples R China 8.Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 9.Cardiff Univ, Sch Phys & Astron, 5 Parade,Newport Rd, Cardiff CF24 3AA, Wales 10.Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 11.Acad Sinica, Inst Astron & Astrophys, 11F Astron Math Bldg,AS NTU 1,Sect 4,Roosevelt Rd, Taipei 10617, Taiwan 12.Natl Taiwan Normal Univ, Dept Earth Sci, 88 Sect 4,Ting Chou Rd, Taipei 11677, Taiwan 13.Natl Taiwan Normal Univ, Ctr Astron & Gravitat, Dept Earth Sci, 88,Sec 4,Ting Chou Rd, Taipei 116, Taiwan |
| Recommended Citation GB/T 7714 | King, S. M.,Moore, T. J. T.,Henshaw, J. D.,et al. CHIMPS2: 13CO J=3→2 emission in the central molecular zone[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2024,533(1):131-142. |
| APA | King, S. M..,Moore, T. J. T..,Henshaw, J. D..,Longmore, S. N..,Eden, D. J..,...&Rani, R..(2024).CHIMPS2: 13CO J=3→2 emission in the central molecular zone.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,533(1),131-142. |
| MLA | King, S. M.,et al."CHIMPS2: 13CO J=3→2 emission in the central molecular zone".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 533.1(2024):131-142. |
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| File Name/Size | DocType | Version | Access | License | ||
| King-2024-CHIMPS2_ _（2750KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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