Revealing which Combinations of Molecular Lines are Sensitive to the Gas Physical Parameters of Molecular Clouds
Atoms and molecules have long been thought to be versatile tracers of the cold neutral gas in the universe, from high-redshift galaxies to star forming regions and proto-planetary disks, because their internal degrees of freedom bear the signature of the physical conditions where these species resid...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2022-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2022/09/epjconf_ism2022_00048.pdf |
| _version_ | 1811228552020885504 |
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| author | Pety Jérôme Gerin Maryvonne Bron Emeric Gratier Pierre Orkisz Jan H. Palud Pierre Roueff Antoine Einig Lucas Santa-Maria Miriam G. de Souza Magalhaes Victor Bardeau Sébastien Chanussot Jocelyn Chainais Pierre Goicoechea Javier R. Guzman Viviana V. Hughes Annie Kainulainen Jouni Languignon David Levrier François Lis Darek Liszt Harvey S. Le Bourlot Jacques Le Petit Franck Oberg Karin Peretto Nicolas Roueff Evelyne Sievers Albrecht Thouvenin Pierre-Antoine Tremblin Pascal |
| author_facet | Pety Jérôme Gerin Maryvonne Bron Emeric Gratier Pierre Orkisz Jan H. Palud Pierre Roueff Antoine Einig Lucas Santa-Maria Miriam G. de Souza Magalhaes Victor Bardeau Sébastien Chanussot Jocelyn Chainais Pierre Goicoechea Javier R. Guzman Viviana V. Hughes Annie Kainulainen Jouni Languignon David Levrier François Lis Darek Liszt Harvey S. Le Bourlot Jacques Le Petit Franck Oberg Karin Peretto Nicolas Roueff Evelyne Sievers Albrecht Thouvenin Pierre-Antoine Tremblin Pascal |
| author_sort | Pety Jérôme |
| collection | DOAJ |
| description | Atoms and molecules have long been thought to be versatile tracers of the cold neutral gas in the universe, from high-redshift galaxies to star forming regions and proto-planetary disks, because their internal degrees of freedom bear the signature of the physical conditions where these species reside. However, the promise that molecular emission has a strong diagnostic power of the underlying physical and chemical state is still hampered by the difficulty to combine sophisticated chemical codes with gas dynamics. It is therefore important 1) to acquire self-consistent data sets that can be used as templates for this theoretical work, and 2) to reveal the diagnostic capabilities of molecular lines accurately. The advent of sensitive wideband spectrometers in the (sub)- millimeter domain (e.g., IRAM-30m/EMIR, NOEMA, …) during the 2010s has allowed us to image a significant fraction of a Giant Molecular Cloud with enough sensitivity to detect tens of molecular lines in the 70 – 116 GHz frequency range. Machine learning techniques applied to these data start to deliver the next generation of molecular line diagnostics of mass, density, temperature, and radiation field. |
| first_indexed | 2024-04-12T09:59:26Z |
| format | Article |
| id | doaj.art-16f83695e6ca42bb95b0428757602df7 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-04-12T09:59:26Z |
| publishDate | 2022-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-16f83695e6ca42bb95b0428757602df72022-12-22T03:37:35ZengEDP SciencesEPJ Web of Conferences2100-014X2022-01-012650004810.1051/epjconf/202226500048epjconf_ism2022_00048Revealing which Combinations of Molecular Lines are Sensitive to the Gas Physical Parameters of Molecular CloudsPety Jérôme0Gerin Maryvonne1Bron Emeric2Gratier Pierre3Orkisz Jan H.4Palud Pierre5Roueff Antoine6Einig Lucas7Santa-Maria Miriam G.8de Souza Magalhaes Victor9Bardeau Sébastien10Chanussot Jocelyn11Chainais Pierre12Goicoechea Javier R.13Guzman Viviana V.14Hughes Annie15Kainulainen Jouni16Languignon David17Levrier François18Lis Darek19Liszt Harvey S.20Le Bourlot Jacques21Le Petit Franck22Oberg Karin23Peretto Nicolas24Roueff Evelyne25Sievers Albrecht26Thouvenin Pierre-Antoine27Tremblin Pascal28IRAMLERMA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne UniversitésLERMA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne UniversitésLaboratoire d’Astrophysique de Bordeaux, Univ. Bordeaux, CNRSChalmers University of Technology, Department of Space, Earth and EnvironmentUniv. Lille, CNRS, Centrale Lille, UMR 9189 - CRIStALAix Marseille Univ, CNRS, Centrale Marseille, Institut FresnelIRAMSee https://www.iram.fr/~pety/ORION-B/team.html for the other affiliationsIRAMIRAMSee https://www.iram.fr/~pety/ORION-B/team.html for the other affiliationsUniv. Lille, CNRS, Centrale Lille, UMR 9189 - CRIStALSee https://www.iram.fr/~pety/ORION-B/team.html for the other affiliationsSee https://www.iram.fr/~pety/ORION-B/team.html for the other affiliationsSee https://www.iram.fr/~pety/ORION-B/team.html for the other affiliationsChalmers University of Technology, Department of Space, Earth and EnvironmentLERMA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne UniversitésSee https://www.iram.fr/~pety/ORION-B/team.html for the other affiliationsSee https://www.iram.fr/~pety/ORION-B/team.html for the other affiliationsSee https://www.iram.fr/~pety/ORION-B/team.html for the other affiliationsLERMA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne UniversitésLERMA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne UniversitésSee https://www.iram.fr/~pety/ORION-B/team.html for the other affiliationsSee https://www.iram.fr/~pety/ORION-B/team.html for the other affiliationsLERMA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne UniversitésIRAMUniv. Lille, CNRS, Centrale Lille, UMR 9189 - CRIStALSee https://www.iram.fr/~pety/ORION-B/team.html for the other affiliationsAtoms and molecules have long been thought to be versatile tracers of the cold neutral gas in the universe, from high-redshift galaxies to star forming regions and proto-planetary disks, because their internal degrees of freedom bear the signature of the physical conditions where these species reside. However, the promise that molecular emission has a strong diagnostic power of the underlying physical and chemical state is still hampered by the difficulty to combine sophisticated chemical codes with gas dynamics. It is therefore important 1) to acquire self-consistent data sets that can be used as templates for this theoretical work, and 2) to reveal the diagnostic capabilities of molecular lines accurately. The advent of sensitive wideband spectrometers in the (sub)- millimeter domain (e.g., IRAM-30m/EMIR, NOEMA, …) during the 2010s has allowed us to image a significant fraction of a Giant Molecular Cloud with enough sensitivity to detect tens of molecular lines in the 70 – 116 GHz frequency range. Machine learning techniques applied to these data start to deliver the next generation of molecular line diagnostics of mass, density, temperature, and radiation field.https://www.epj-conferences.org/articles/epjconf/pdf/2022/09/epjconf_ism2022_00048.pdf |
| spellingShingle | Pety Jérôme Gerin Maryvonne Bron Emeric Gratier Pierre Orkisz Jan H. Palud Pierre Roueff Antoine Einig Lucas Santa-Maria Miriam G. de Souza Magalhaes Victor Bardeau Sébastien Chanussot Jocelyn Chainais Pierre Goicoechea Javier R. Guzman Viviana V. Hughes Annie Kainulainen Jouni Languignon David Levrier François Lis Darek Liszt Harvey S. Le Bourlot Jacques Le Petit Franck Oberg Karin Peretto Nicolas Roueff Evelyne Sievers Albrecht Thouvenin Pierre-Antoine Tremblin Pascal Revealing which Combinations of Molecular Lines are Sensitive to the Gas Physical Parameters of Molecular Clouds EPJ Web of Conferences |
| title | Revealing which Combinations of Molecular Lines are Sensitive to the Gas Physical Parameters of Molecular Clouds |
| title_full | Revealing which Combinations of Molecular Lines are Sensitive to the Gas Physical Parameters of Molecular Clouds |
| title_fullStr | Revealing which Combinations of Molecular Lines are Sensitive to the Gas Physical Parameters of Molecular Clouds |
| title_full_unstemmed | Revealing which Combinations of Molecular Lines are Sensitive to the Gas Physical Parameters of Molecular Clouds |
| title_short | Revealing which Combinations of Molecular Lines are Sensitive to the Gas Physical Parameters of Molecular Clouds |
| title_sort | revealing which combinations of molecular lines are sensitive to the gas physical parameters of molecular clouds |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2022/09/epjconf_ism2022_00048.pdf |
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