KMS of Xinjiang Astronomical Observatory, CAS
| Molecular isotopologue measurements toward super star clusters and the relation to their ages in NGC 253 with ALCHEMI | |
| Butterworth, J.1; Viti, S.1; Van der Werf, P. P.1; Mangum, J. G.2; Martin, S.3,4; Harada, N.5,6,7; Emig, K. L.2; Muller, S.8; Sakamoto, K.6,7; Yoshimura, Y.9; Tanaka, K.10; Herrero-Illana, R.3,11; Colzi, L.12; Rivilla, V. M.12; Huang, K. Y.1; Bouvier, M.1; Behrens, E.13; Henkel, C.14,15,16; Yan, Y. T.14; Meier, D. S.17,18; Zhou, D.1,19,20,21 | |
| 2024-05-28 | |
| Source Publication | ASTRONOMY & ASTROPHYSICS
 |
| ISSN | 0004-6361 |
| Volume | 686Pages:A31 |
| Contribution Rank | 16 |
| Abstract | Context. Determining the evolution of the CNO isotopes in the interstellar medium (ISM) of starburst galaxies can yield important constraints on the ages of super star clusters (SSCs), or on other aspects and factors contributing to their evolution, such as the initial mass function (IMF). Due to the time-dependent nature of the abundances of isotopes within the ISM - as they are supplied from processes such as nucleosynthesis or chemical fractionation -, this provides the opportunity to test whether or not isotope ratios trace the ages of highly star-forming regions, such as SSCs. Aims. The goal of this study is to investigate whether the isotopic variations in SSC regions within NGC 253 are correlated with their different ages as derived from stellar population modelling. Methods. We measured abundance ratios of CO, HCN, and HCO+ isotopologues in six regions containing SSCs within NGC 253 using high-spatial-resolution (1.6 '', similar to 28 pc) data from the ALCHEMI (ALma Comprehensive High-resolution Extragalactic Molecular Inventory) ALMA Large program. We then analysed these ratios using RADEX radiative transfer modelling, with the parameter space sampled using the nested sampling Monte Carlo algorithm MLFriends. These abundance ratios were then compared to ages predicted in each region via the fitting of observed star-formation tracers (such as Br gamma) to Starburst99 starburst stellar population evolution models. Results. We determined the isotopic column density ratios across multiple regions of SSC activity in NGC 253 using non-LTE radiative transfer modelling. We do not find any significant trend with age for the CO and HCN isotopologue ratios on timescales of the ages of the SSC* regions observed. However, HCO+ may show a correlation with age over these timescales in C-12/C-13. Conclusions. The driving factors of these ratios within SSCs could be the IMF or fractionation effects. To further probe these effects in SSCs over time, a larger sample of SSCs must be observed spanning a larger age range. |
| Keyword | astrochemistry ISM: molecules galaxies: active galaxies: ISM galaxies: starburst |
| DOI | 10.1051/0004-6361/202348787 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | SUB-DOPPLER MEASUREMENTS ; MILLIMETER-WAVE OBSERVATIONS ; LUMINOUS INFRARED GALAXIES ; GALACTIC C-12/C-13 RATIOS ; ROTATIONAL SPECTRUM ; DENSE-GAS ; INTERSTELLAR-MEDIUM ; NITROGEN FRACTIONATION ; INITIAL CONDITIONS ; CENTRAL STARBURST |
| Funding Project | European Research Council (ERC) ; MCIN/AEI[PID2019-105552RB-C41] ; Consejo Superior de Investigaciones Cientificas (CSIC) ; Centro de Astrobiologia (CAB)[833460] ; [RYC2020-029387-I] ; [20225AT015] |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001233655700010 |
| Publisher | EDP SCIENCES S A |
| Funding Organization | European Research Council (ERC) ; MCIN/AEI ; Consejo Superior de Investigaciones Cientificas (CSIC) ; Centro de Astrobiologia (CAB) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/6767 |
| Collection | 中国科学院新疆天文台 |
| Corresponding Author | Butterworth, J. |
| Affiliation | 1.Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands 2.Natl Radio Astron Observ, 520 Edgemont Rd, Charlottesville, VA 22903 USA 3.European Southern Observ, Alonso Cordova 3107, Santiago 7630355, Chile 4.Joint ALMA Observ, Alonso Cordova 3107, Santiago 7630355, Chile 5.Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan 6.Acad Sinica, Acad Sin, 11F AS-NTU Astron Math Bldg,1,Sec 4,Roosevelt Rd, Taipei 10617, Taiwan 7.Grad Univ Adv Studies SOKENDAI, Sch Sci, Dept Astron, 2-21-1 Osawa, Mitaka, Tokyo 1811855, Japan 8.Chalmers Univ Technol, Dept Space Earth & Environm, Onsala Space Observ, S-43992 Onsala, Sweden 9.Univ Tokyo, Inst Astron, Grad Sch Sci, 2-21-1 Osawa, Mitaka, Tokyo 1810015, Japan 10.Keio Univ, Fac Sci & Technol, Dept Phys, 3-14-1 Hiyoshi, Yokohama, Kanagawa 2238522, Japan 11.CSIC, Inst Space Sci ICE, Campus UAB,Carrer Magrans, Barcelona 08193, Spain 12.Ctr Astrobiol CAB, CSIC INTA, Ctra Torrejon Ajalvir Km 4, Torrejon De Ardoz 28850, Madrid, Spain 13.Univ Virginia, Dept Astron, POB 400325,530 McCormick Rd, Charlottesville, VA 22904 USA 14.Max Planck Inst Radioastron, Auf-dem-Hugel 69, D-53121 Bonn, Germany 15.King Abdulaziz Univ, Fac Sci, Astron Dept, POB 80203, Jeddah 21589, Saudi Arabia 16.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 17.New Mexico Inst Min & Technol, 801 Leroy Pl, Socorro, NM 87801 USA 18.Natl Radio Astron Observ, POB 1003 Lopezville Rd, Socorro, NM 87801 USA 19.Cosm Dawn Ctr DAWN, Copenhagen, Denmark 20.Tech Univ Denmark, DTU Space, Elektrovej 327, DK-2800 Lyngby, Denmark 21.Univ British Columbia, Dept Phys & Astron, 6225 Agr Rd, Vancouver, BC V6T 1Z1, Canada |
| Recommended Citation GB/T 7714 | Butterworth, J.,Viti, S.,Van der Werf, P. P.,et al. Molecular isotopologue measurements toward super star clusters and the relation to their ages in NGC 253 with ALCHEMI[J]. ASTRONOMY & ASTROPHYSICS,2024,686:A31. |
| APA | Butterworth, J..,Viti, S..,Van der Werf, P. P..,Mangum, J. G..,Martin, S..,...&Zhou, D..(2024).Molecular isotopologue measurements toward super star clusters and the relation to their ages in NGC 253 with ALCHEMI.ASTRONOMY & ASTROPHYSICS,686,A31. |
| MLA | Butterworth, J.,et al."Molecular isotopologue measurements toward super star clusters and the relation to their ages in NGC 253 with ALCHEMI".ASTRONOMY & ASTROPHYSICS 686(2024):A31. |
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| Butterworth-2024-Mol（4544KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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