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Molecules with ALMA at Planet-forming Scales (MAPS). X. Studying deuteration at high angular resolution toward protoplanetary disks
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dc.contributor.author | Cataldi, Gianni | |
dc.contributor.author | Yamato, Yoshihide | |
dc.contributor.author | Aikawa, Yuri | |
dc.contributor.author | Bergner, Jennifer B. | |
dc.contributor.author | Furuya, Kenji | |
dc.contributor.author | Guzmán, Viviana V. | |
dc.contributor.author | Huang, Jane | |
dc.contributor.author | Loomis, Ryan A. | |
dc.contributor.author | Qi, Chunhua | |
dc.contributor.author | Andrews, Sean M. | |
dc.contributor.author | Bergin, Edwin A. | |
dc.contributor.author | Booth, Alice S. | |
dc.contributor.author | Bosman, Arthur D. | |
dc.contributor.author | Cleeves, L. Ilsedore | |
dc.contributor.author | Czekala, Ian | |
dc.contributor.author | Ilee, John D. | |
dc.contributor.author | Law, Charles J. | |
dc.contributor.author | Le Gal, Romane | |
dc.contributor.author | Liu, Yao | |
dc.contributor.author | Long, Feng | |
dc.contributor.author | Ménard, François | |
dc.contributor.author | Nomura, Hideko | |
dc.contributor.author | Öberg, Karin I. | |
dc.contributor.author | Schwarz, Kamber R. | |
dc.contributor.author | Teague, Richard | |
dc.contributor.author | Tsukagoshi, Takashi | |
dc.contributor.author | Walsh, Catherine | |
dc.contributor.author | Wilner, David J. | |
dc.contributor.author | Zhang, Ke | |
dc.date.accessioned | 2023-11-16T17:30:02Z | |
dc.date.available | 2023-11-16T17:30:02Z | |
dc.date.issued | 2021-11 | |
dc.identifier | 295919150 | |
dc.identifier | 5fa7c6e4-83c8-4fb2-a59b-ba97aa0384fd | |
dc.identifier | 85119689455 | |
dc.identifier.citation | Cataldi , G , Yamato , Y , Aikawa , Y , Bergner , J B , Furuya , K , Guzmán , V V , Huang , J , Loomis , R A , Qi , C , Andrews , S M , Bergin , E A , Booth , A S , Bosman , A D , Cleeves , L I , Czekala , I , Ilee , J D , Law , C J , Le Gal , R , Liu , Y , Long , F , Ménard , F , Nomura , H , Öberg , K I , Schwarz , K R , Teague , R , Tsukagoshi , T , Walsh , C , Wilner , D J & Zhang , K 2021 , ' Molecules with ALMA at Planet-forming Scales (MAPS). X. Studying deuteration at high angular resolution toward protoplanetary disks ' , Astrophysical Journal Supplement Series , vol. 257 , no. 1 , 10 . https://doi.org/10.3847/1538-4365/ac143d | en |
dc.identifier.issn | 0067-0049 | |
dc.identifier.other | BibCode: 2021ApJS..257...10C | |
dc.identifier.other | ORCID: /0000-0002-1483-8811/work/146464259 | |
dc.identifier.uri | https://hdl.handle.net/10023/28718 | |
dc.description | Funding: J.B.B., J.H., I.C., K.R.S., and K.Z. acknowledge the support of NASA through Hubble Fellowship grants HST-HF2-51429.001-A, HST-HF2-51460.001-A, HST-HF2-51405.001-A, HST-HF2-51419.001, and HST-HF2-51401.001, awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., for NASA, under contract NAS5-26555. A.S.B. acknowledges the studentship funded by the Science and Technology Facilities Council of the United Kingdom (STFC). J.D.I. acknowledges support from STFC under ST/T000287/1. C.W. acknowledges financial support from the University of Leeds, STFC, and UKRI (grant Nos. ST/R000549/1, ST/T000287/1, MR/T040726/1). | en |
dc.description.abstract | Deuterium fractionation is dependent on various physical and chemical parameters. Thus, the formation location and thermal history of material in the solar system is often studied by measuring its D/H ratio. This requires knowledge about the deuteration processes operating during the planet formation era. We aim to study these processes by radially resolving the DCN/HCN (at 0″3 resolution) and N2D+/N2H+ (~0″3-0″9) column density ratios toward the five protoplanetary disks observed by the Molecules with ALMA at Planet-forming scales (MAPS) Large Program. DCN is detected in all five sources, with one newly reported detection. N2D+ is detected in four sources, two of which are newly reported detections. We derive column density profiles that allow us to study the spatial variation of the DCN/HCN and N2D+/N2H+ ratios at high resolution. DCN/HCN varies considerably for different parts of the disks, ranging from 10-3 to 10-1. In particular, the inner-disk regions generally show significantly lower HCN deuteration compared with the outer disk. In addition, our analysis confirms that two deuterium fractionation channels are active, which can alter the D/H ratio within the pool of organic molecules. N2D+ is found in the cold outer regions beyond ~50 au, with N2D+/N2H+ ranging between 10-2 and 1 across the disk sample. This is consistent with the theoretical expectation that N2H+ deuteration proceeds via the low-temperature channel only. This paper is part of the MAPS special issue of the Astrophysical Journal Supplement. | |
dc.format.extent | 44 | |
dc.format.extent | 11255141 | |
dc.language.iso | eng | |
dc.relation.ispartof | Astrophysical Journal Supplement Series | en |
dc.subject | Astrochemistry | en |
dc.subject | Isotopic abundances | en |
dc.subject | Interferometry | en |
dc.subject | Protoplanetary disks | en |
dc.subject | Planet formation | en |
dc.subject | Planetary system formation | en |
dc.subject | Millimeter astronomy | en |
dc.subject | Aperture synthesis | en |
dc.subject | QB Astronomy | en |
dc.subject | QC Physics | en |
dc.subject | DAS | en |
dc.subject.lcc | QB | en |
dc.subject.lcc | QC | en |
dc.title | Molecules with ALMA at Planet-forming Scales (MAPS). X. Studying deuteration at high angular resolution toward protoplanetary disks | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.identifier.doi | 10.3847/1538-4365/ac143d | |
dc.description.status | Peer reviewed | en |
dc.identifier.url | https://arxiv.org/abs/2109.06462 | en |
dc.identifier.url | http://adsabs.harvard.edu/abs/2021ApJS..257...10C | en |
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