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Ram pressure stripping and ISM disc truncation: prediction versus observation
Indexado
WoS WOS:000870425800002
Scopus SCOPUS_ID:85145262382
DOI 10.1093/MNRAS/STAC2821
Año 2022
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



Ram pressure stripping (RPS) is known to be a key environmental effect that can remove interstellar gas from galaxies in a cluster. The RPS process is commonly described as a competition between the ram pressure by the intracluster medium and the anchoring pressure on the interstellar medium by the gravitational potential of a galaxy. However, the actual gas stripping process can be more complicated due to the complexity of gas physics such as compression and geometrical self-shielding as well as cooling and heating. In order to verify how well the observed signatures of the RPS process can be understood as simple momentum transfer, we compare the stripping radii of Virgo cluster galaxies in different stages of RPS measured from the H i observation with the predicted gas truncation radii for the given conditions. For the sample undergoing active RPS, we generally find good agreements between predictions and observations within a measurement uncertainty. On the other hand, galaxies likely in the early or later RPS stage and/or the ones with signs of environmental impacts other than RPS such as tidal interaction or starvation show some discrepancies. Our results imply that the conventional RPS relation works reasonably well in a broad sense when RPS is the most dominant process and the galaxy is located where the surrounding environment can be well defined. Otherwise, more careful inspections on the second mechanism and local environment are required to assess the impact of RPS on the target.

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Disciplinas de Investigación



WOS
Astronomy & Astrophysics
Scopus
Sin Disciplinas
SciELO
Sin Disciplinas

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



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Autores - Afiliación



Ord. Autor Género Institución - País
1 Lee, Seona Mujer Yonsei Univ - Corea del Sur
Yonsei University - Corea del Sur
2 Sheen, Yun-Kyeong - Korea Astron & Space Sci Inst - Corea del Sur
Korea Astronomy and Space Science Institute - Corea del Sur
3 Yoon, Hyein - Yonsei Univ - Corea del Sur
UNIV SYDNEY - Australia
ARC Ctr Excellence All Sky Astrophys 3 Dimens AST - Australia
Yonsei University - Corea del Sur
The University of Sydney - Australia
ARC Centre of Excellence for All-sky Astrophysics - Australia
4 Jaffe, Yara Mujer Universidad de Valparaíso - Chile
5 Chung, Aeree - Yonsei Univ - Corea del Sur
Yonsei University - Corea del Sur

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Financiamiento



Fuente
National Research Foundation of Korea
Fondo Nacional de Desarrollo Científico y Tecnológico
National Research Foundation of Korea (NRF)
Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D)
Australian Research Council Centre of Excellence
FONDECYT Iniciacion 2018
Ministry of Science, ICT and Future Planning
National Research Foundation of Korea (NRF) - Ministry of Science and ICT
Agencia Nacional de Investigación y Desarrollo
ANID Basal Project

Muestra la fuente de financiamiento declarada en la publicación.

Agradecimientos



Agradecimiento
We are grateful to the anonymous referee for useful comments and suggestions which helped to improve the manuscript tremendously. AC and SL acknowledge support by the National Research Foundation of Korea (NRF), Grant No. 2018R1D1A1B07048314, 2022R1A2C1002982, and 2022R1A6A1A03053472. YKS acknowledges support from the National Research Foundation of Korea (NRF) grant funded by the Ministry of Science and ICT (NRF-2019R1C1C1010279). HY acknowledges support from the Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), through Project No. CE170100013. YJ acknowledges financial support from ANID BASAL Project No. FB210003 and FONDECYT Iniciacion 2018 No. 11180558.
We are grateful to the anonymous referee for useful comments and suggestions which helped to improve the manuscript tremendously. AC and SL acknowledge support by the National Research Foundation of Korea (NRF), Grant No. 2018R1D1A1B07048314, 2022R1A2C1002982, and 2022R1A6A1A03053472. YKS acknowledges support from the National Research Foundation of Korea (NRF) grant funded by the Ministry of Science and ICT (NRF-2019R1C1C1010279). HY acknowledges support from the Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), through Project No. CE170100013. YJ acknowledges financial support from ANID BASAL Project No. FB210003 and FONDECYT Iniciación 2018 No. 11180558.

Muestra la fuente de financiamiento declarada en la publicación.