Multi-line Observations, Models, and Data Needed to Understand the Nature of UV-irradiated Interstellar Matter
Far-ultraviolet photons from OB-type massive stars regulate the heating, ionization, and chemistry of much of the neutral interstellar gas in star-forming galaxies. The interaction of FUV radiation and interstellar matter takes place in environments broadly known as photodissociation regions (PDRs)....
| Main Authors: | , , |
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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_00003.pdf |
| _version_ | 1797997092508008448 |
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| author | Goicoechea Javier R. Cuadrado Sara Le Petit Franck |
| author_facet | Goicoechea Javier R. Cuadrado Sara Le Petit Franck |
| author_sort | Goicoechea Javier R. |
| collection | DOAJ |
| description | Far-ultraviolet photons from OB-type massive stars regulate the heating, ionization, and chemistry of much of the neutral interstellar gas in star-forming galaxies. The interaction of FUV radiation and interstellar matter takes place in environments broadly known as photodissociation regions (PDRs). PDR line diagnostics are the smoking gun of the radiative feedback from massive stars. Improving our understanding of stellar feedback in the ISM requires quantifying the energy budget, gas dynamics, and chemical composition of PDR environments. This goal demands astronomical instrumentation able to deliver multi-line spectroscopic images of the ISM (of the Milky Way and nearby galaxies). It also requires interdisciplinary collaborations to obtain the rate coefficients and cross sections of the many microphysical processes that occur in the ISM and that are included in models such as the Meudon PDR code. |
| first_indexed | 2024-04-11T10:27:35Z |
| format | Article |
| id | doaj.art-e699b2a5f8f848aeace76363db7e0317 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-04-11T10:27:35Z |
| publishDate | 2022-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-e699b2a5f8f848aeace76363db7e03172022-12-22T04:29:33ZengEDP SciencesEPJ Web of Conferences2100-014X2022-01-012650000310.1051/epjconf/202226500003epjconf_ism2022_00003Multi-line Observations, Models, and Data Needed to Understand the Nature of UV-irradiated Interstellar MatterGoicoechea Javier R.0Cuadrado Sara1Le Petit Franck2Instituto de Física Fundamental (IFF), CSICInstituto de Física Fundamental (IFF), CSICLERMA, Observatoire de Paris, PSL University, CNRS, Sorbonne UniversitéFar-ultraviolet photons from OB-type massive stars regulate the heating, ionization, and chemistry of much of the neutral interstellar gas in star-forming galaxies. The interaction of FUV radiation and interstellar matter takes place in environments broadly known as photodissociation regions (PDRs). PDR line diagnostics are the smoking gun of the radiative feedback from massive stars. Improving our understanding of stellar feedback in the ISM requires quantifying the energy budget, gas dynamics, and chemical composition of PDR environments. This goal demands astronomical instrumentation able to deliver multi-line spectroscopic images of the ISM (of the Milky Way and nearby galaxies). It also requires interdisciplinary collaborations to obtain the rate coefficients and cross sections of the many microphysical processes that occur in the ISM and that are included in models such as the Meudon PDR code.https://www.epj-conferences.org/articles/epjconf/pdf/2022/09/epjconf_ism2022_00003.pdf |
| spellingShingle | Goicoechea Javier R. Cuadrado Sara Le Petit Franck Multi-line Observations, Models, and Data Needed to Understand the Nature of UV-irradiated Interstellar Matter EPJ Web of Conferences |
| title | Multi-line Observations, Models, and Data Needed to Understand the Nature of UV-irradiated Interstellar Matter |
| title_full | Multi-line Observations, Models, and Data Needed to Understand the Nature of UV-irradiated Interstellar Matter |
| title_fullStr | Multi-line Observations, Models, and Data Needed to Understand the Nature of UV-irradiated Interstellar Matter |
| title_full_unstemmed | Multi-line Observations, Models, and Data Needed to Understand the Nature of UV-irradiated Interstellar Matter |
| title_short | Multi-line Observations, Models, and Data Needed to Understand the Nature of UV-irradiated Interstellar Matter |
| title_sort | multi line observations models and data needed to understand the nature of uv irradiated interstellar matter |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2022/09/epjconf_ism2022_00003.pdf |
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