ALMA Spectral Survey of an Eruptive Young Star, V883 Ori (ASSAY). II. Freshly Sublimated Complex Organic Molecules in the Keplerian Disk
We present an investigation of complex organic molecules (COMs) in the spatially resolved Keplerian disk around V883 Ori, an eruptive young star, based on a spectral survey carried out with the Atacama Large Millimeter/submillimeter Array in Band 6 (220.7−274.9 GHz). We identified about 3700 molecul...
Saved in:
| Main Authors: | , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2025-01-01
|
| Series: | The Astrophysical Journal Supplement Series |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/1538-4365/ad9450 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841526845707649024 |
|---|---|
| author | Jae-Hong Jeong Jeong-Eun Lee Seonjae Lee Giseon Baek Ji-Hyun Kang Seokho Lee Chul-Hwan Kim Hyeong-Sik Yun Yuri Aikawa Gregory J. Herczeg Doug Johnstone Lucas Cieza |
| author_facet | Jae-Hong Jeong Jeong-Eun Lee Seonjae Lee Giseon Baek Ji-Hyun Kang Seokho Lee Chul-Hwan Kim Hyeong-Sik Yun Yuri Aikawa Gregory J. Herczeg Doug Johnstone Lucas Cieza |
| author_sort | Jae-Hong Jeong |
| collection | DOAJ |
| description | We present an investigation of complex organic molecules (COMs) in the spatially resolved Keplerian disk around V883 Ori, an eruptive young star, based on a spectral survey carried out with the Atacama Large Millimeter/submillimeter Array in Band 6 (220.7−274.9 GHz). We identified about 3700 molecular emission lines and discovered 23 COMs in the disk. We estimated the column densities of the COMs detected, using the iterative LTE line-fitting method. According to our analyses, using only optically thin lines is critical to deriving the reliable column densities of COMs. Therefore, covering a large frequency range is important for the studies of COMs. The most distinct phenomenon found from the spectra of the V883 Ori disk is that nitrogen-bearing COMs other than CH _3 CN are missing, whereas various oxygen-bearing COMs, except for the CH _2 OH-bearing molecules, are detected. The missing CH _2 OH-bearing COMs may indicate the warm water-ice dominant environment for forming COMs. We compared our results with various objects in different evolutionary stages, from Class 0 hot corinos to a solar system comet 67P/Churyumov-Gerasimenko, to examine the effect of evolution on the COM compositions. In general, the COM abundances relative to methanol in V883 Ori are higher than in the hot corinos and hot cores, while they are comparable to the cometary values. This may indicate the planet-forming material chemically evolves in the disk midplane after being accreted from the envelope. In addition, as found in the comet 67P/Churyumov-Gerasimenko, nitrogen might also be trapped as ammonium salt within the dust grains in the V883 Ori disk. |
| format | Article |
| id | doaj-art-f2dcff1bac104bd0b16f1bfa1df91ae6 |
| institution | Kabale University |
| issn | 0067-0049 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal Supplement Series |
| spelling | doaj-art-f2dcff1bac104bd0b16f1bfa1df91ae62025-01-16T10:10:58ZengIOP PublishingThe Astrophysical Journal Supplement Series0067-00492025-01-0127624910.3847/1538-4365/ad9450ALMA Spectral Survey of an Eruptive Young Star, V883 Ori (ASSAY). II. Freshly Sublimated Complex Organic Molecules in the Keplerian DiskJae-Hong Jeong0https://orcid.org/0009-0005-6319-8485Jeong-Eun Lee1https://orcid.org/0000-0003-3119-2087Seonjae Lee2https://orcid.org/0000-0001-6324-8482Giseon Baek3https://orcid.org/0000-0002-2814-1978Ji-Hyun Kang4https://orcid.org/0000-0001-7379-6263Seokho Lee5https://orcid.org/0000-0002-0226-9295Chul-Hwan Kim6https://orcid.org/0000-0002-2523-3762Hyeong-Sik Yun7https://orcid.org/0000-0001-6842-1555Yuri Aikawa8https://orcid.org/0000-0003-3283-6884Gregory J. Herczeg9https://orcid.org/0000-0002-7154-6065Doug Johnstone10https://orcid.org/0000-0002-6773-459XLucas Cieza11https://orcid.org/0000-0002-2828-1153Department of Physics and Astronomy, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea ; lee.jeongeun@snu.ac.krDepartment of Physics and Astronomy, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea ; lee.jeongeun@snu.ac.kr; SNU Astronomy Research Center, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of KoreaDepartment of Physics and Astronomy, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea ; lee.jeongeun@snu.ac.krDepartment of Physics and Astronomy, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea ; lee.jeongeun@snu.ac.kr; Research Institute of Basic Sciences, Seoul National University , Seoul 08826, Republic of KoreaKorea Astronomy and Space Science Institute , 776 Daedeok-daero, Yuseong, Daejeon 34055, Republic of KoreaKorea Astronomy and Space Science Institute , 776 Daedeok-daero, Yuseong, Daejeon 34055, Republic of KoreaDepartment of Physics and Astronomy, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea ; lee.jeongeun@snu.ac.krKorea Astronomy and Space Science Institute , 776 Daedeok-daero, Yuseong, Daejeon 34055, Republic of KoreaDepartment of Astronomy, University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, JapanKavli Institute for Astronomy and Astrophysics, Peking University , Yiheyuan 5, Haidian Qu, 100871 Beijing, People's Republic of China; Department of Astronomy, Peking University , Yiheyuan 5, Haidian Qu, 100871 Beijing, People's Republic of ChinaNRC Herzberg Astronomy and Astrophysics , 5071 West Saanich Road, Victoria, BC, V9E 2E7, Canada; Department of Physics and Astronomy, University of Victoria , 3800 Finnerty Road, Elliot Building, Victoria, BC, V8P 5C2, CanadaFacultad de Ingeniería y Ciencias, Instituto de Estudios Astrofísicos , Universidad Diego Portales, Av. Ejercito 441, Santiago, ChileWe present an investigation of complex organic molecules (COMs) in the spatially resolved Keplerian disk around V883 Ori, an eruptive young star, based on a spectral survey carried out with the Atacama Large Millimeter/submillimeter Array in Band 6 (220.7−274.9 GHz). We identified about 3700 molecular emission lines and discovered 23 COMs in the disk. We estimated the column densities of the COMs detected, using the iterative LTE line-fitting method. According to our analyses, using only optically thin lines is critical to deriving the reliable column densities of COMs. Therefore, covering a large frequency range is important for the studies of COMs. The most distinct phenomenon found from the spectra of the V883 Ori disk is that nitrogen-bearing COMs other than CH _3 CN are missing, whereas various oxygen-bearing COMs, except for the CH _2 OH-bearing molecules, are detected. The missing CH _2 OH-bearing COMs may indicate the warm water-ice dominant environment for forming COMs. We compared our results with various objects in different evolutionary stages, from Class 0 hot corinos to a solar system comet 67P/Churyumov-Gerasimenko, to examine the effect of evolution on the COM compositions. In general, the COM abundances relative to methanol in V883 Ori are higher than in the hot corinos and hot cores, while they are comparable to the cometary values. This may indicate the planet-forming material chemically evolves in the disk midplane after being accreted from the envelope. In addition, as found in the comet 67P/Churyumov-Gerasimenko, nitrogen might also be trapped as ammonium salt within the dust grains in the V883 Ori disk.https://doi.org/10.3847/1538-4365/ad9450Star formationProtoplanetary disksAstrochemistryComplex organic molecules |
| spellingShingle | Jae-Hong Jeong Jeong-Eun Lee Seonjae Lee Giseon Baek Ji-Hyun Kang Seokho Lee Chul-Hwan Kim Hyeong-Sik Yun Yuri Aikawa Gregory J. Herczeg Doug Johnstone Lucas Cieza ALMA Spectral Survey of an Eruptive Young Star, V883 Ori (ASSAY). II. Freshly Sublimated Complex Organic Molecules in the Keplerian Disk The Astrophysical Journal Supplement Series Star formation Protoplanetary disks Astrochemistry Complex organic molecules |
| title | ALMA Spectral Survey of an Eruptive Young Star, V883 Ori (ASSAY). II. Freshly Sublimated Complex Organic Molecules in the Keplerian Disk |
| title_full | ALMA Spectral Survey of an Eruptive Young Star, V883 Ori (ASSAY). II. Freshly Sublimated Complex Organic Molecules in the Keplerian Disk |
| title_fullStr | ALMA Spectral Survey of an Eruptive Young Star, V883 Ori (ASSAY). II. Freshly Sublimated Complex Organic Molecules in the Keplerian Disk |
| title_full_unstemmed | ALMA Spectral Survey of an Eruptive Young Star, V883 Ori (ASSAY). II. Freshly Sublimated Complex Organic Molecules in the Keplerian Disk |
| title_short | ALMA Spectral Survey of an Eruptive Young Star, V883 Ori (ASSAY). II. Freshly Sublimated Complex Organic Molecules in the Keplerian Disk |
| title_sort | alma spectral survey of an eruptive young star v883 ori assay ii freshly sublimated complex organic molecules in the keplerian disk |
| topic | Star formation Protoplanetary disks Astrochemistry Complex organic molecules |
| url | https://doi.org/10.3847/1538-4365/ad9450 |
| work_keys_str_mv | AT jaehongjeong almaspectralsurveyofaneruptiveyoungstarv883oriassayiifreshlysublimatedcomplexorganicmoleculesinthekepleriandisk AT jeongeunlee almaspectralsurveyofaneruptiveyoungstarv883oriassayiifreshlysublimatedcomplexorganicmoleculesinthekepleriandisk AT seonjaelee almaspectralsurveyofaneruptiveyoungstarv883oriassayiifreshlysublimatedcomplexorganicmoleculesinthekepleriandisk AT giseonbaek almaspectralsurveyofaneruptiveyoungstarv883oriassayiifreshlysublimatedcomplexorganicmoleculesinthekepleriandisk AT jihyunkang almaspectralsurveyofaneruptiveyoungstarv883oriassayiifreshlysublimatedcomplexorganicmoleculesinthekepleriandisk AT seokholee almaspectralsurveyofaneruptiveyoungstarv883oriassayiifreshlysublimatedcomplexorganicmoleculesinthekepleriandisk AT chulhwankim almaspectralsurveyofaneruptiveyoungstarv883oriassayiifreshlysublimatedcomplexorganicmoleculesinthekepleriandisk AT hyeongsikyun almaspectralsurveyofaneruptiveyoungstarv883oriassayiifreshlysublimatedcomplexorganicmoleculesinthekepleriandisk AT yuriaikawa almaspectralsurveyofaneruptiveyoungstarv883oriassayiifreshlysublimatedcomplexorganicmoleculesinthekepleriandisk AT gregoryjherczeg almaspectralsurveyofaneruptiveyoungstarv883oriassayiifreshlysublimatedcomplexorganicmoleculesinthekepleriandisk AT dougjohnstone almaspectralsurveyofaneruptiveyoungstarv883oriassayiifreshlysublimatedcomplexorganicmoleculesinthekepleriandisk AT lucascieza almaspectralsurveyofaneruptiveyoungstarv883oriassayiifreshlysublimatedcomplexorganicmoleculesinthekepleriandisk |