UV and Hα HST Observations of Six GASP Jellyfish Galaxies
Star-forming, H α -emitting clumps are found embedded in the gaseous tails of galaxies undergoing intense ram pressure stripping in galaxy clusters, so-called jellyfish galaxies. These clumps offer a unique opportunity to study star formation under extreme conditions, in the absence of an underlying...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/acb59b |
| _version_ | 1827830915445817344 |
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| author | Marco Gullieuszik Eric Giunchi Bianca M. Poggianti Alessia Moretti Claudia Scarlata Daniela Calzetti Ariel Werle Anita Zanella Mario Radovich Callum Bellhouse Daniela Bettoni Andrea Franchetto Jacopo Fritz Yara L. Jaffé Sean L. McGee Matilde Mingozzi Alessandro Omizzolo Stephanie Tonnesen Marc Verheijen Benedetta Vulcani |
| author_facet | Marco Gullieuszik Eric Giunchi Bianca M. Poggianti Alessia Moretti Claudia Scarlata Daniela Calzetti Ariel Werle Anita Zanella Mario Radovich Callum Bellhouse Daniela Bettoni Andrea Franchetto Jacopo Fritz Yara L. Jaffé Sean L. McGee Matilde Mingozzi Alessandro Omizzolo Stephanie Tonnesen Marc Verheijen Benedetta Vulcani |
| author_sort | Marco Gullieuszik |
| collection | DOAJ |
| description | Star-forming, H α -emitting clumps are found embedded in the gaseous tails of galaxies undergoing intense ram pressure stripping in galaxy clusters, so-called jellyfish galaxies. These clumps offer a unique opportunity to study star formation under extreme conditions, in the absence of an underlying disk and embedded within the hot intracluster medium. Yet, a comprehensive, high-spatial-resolution study of these systems is missing. We obtained UVIS/Hubble Space Telescope (HST) data to observe the first statistical sample of clumps in the tails and disks of six jellyfish galaxies from the GASP survey; we used a combination of broadband (UV to I) filters and a narrowband H α filter. HST observations are needed to study the sizes, stellar masses, and ages of the clumps and their clustering hierarchy. These observations will be used to study the clump scaling relations and the universality of the star formation process, and to verify whether a disk is irrelevant, as hinted at by results from jellyfish galaxies. This paper presents the observations, data reduction strategy, and some general results based on the preliminary data analysis. The high spatial resolution of UVIS gives an unprecedentedly sharp view of the complex structure of the inner regions of the galaxies and of the substructures in the galaxy disks. We found clear signatures of stripping in regions very close in projection to the galactic disk. The star-forming regions in the stripped tails are extremely bright and compact and we did not detect a significant number of star-forming clumps in regions where MUSE did not detect any. The paper finally presents the development plan for the project. |
| first_indexed | 2024-03-12T04:36:39Z |
| format | Article |
| id | doaj.art-0a5b12b037f64f6eb163a9f117113746 |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-12T04:36:39Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-0a5b12b037f64f6eb163a9f1171137462023-09-03T09:55:19ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-0194515410.3847/1538-4357/acb59bUV and Hα HST Observations of Six GASP Jellyfish GalaxiesMarco Gullieuszik0https://orcid.org/0000-0002-7296-9780Eric Giunchi1https://orcid.org/0000-0002-3818-1746Bianca M. Poggianti2https://orcid.org/0000-0001-8751-8360Alessia Moretti3https://orcid.org/0000-0002-1688-482XClaudia Scarlata4https://orcid.org/0000-0002-9136-8876Daniela Calzetti5https://orcid.org/0000-0002-5189-8004Ariel Werle6https://orcid.org/0000-0002-4382-8081Anita Zanella7https://orcid.org/0000-0001-8600-7008Mario Radovich8https://orcid.org/0000-0002-3585-866XCallum Bellhouse9https://orcid.org/0000-0002-6179-8007Daniela Bettoni10https://orcid.org/0000-0002-4158-6496Andrea Franchetto11https://orcid.org/0000-0001-9575-331XJacopo Fritz12https://orcid.org/0000-0002-7042-1965Yara L. Jaffé13https://orcid.org/0000-0003-2150-1130Sean L. McGee14https://orcid.org/0000-0003-3255-3139Matilde Mingozzi15https://orcid.org/0000-0003-2589-762XAlessandro Omizzolo16https://orcid.org/0000-0002-0838-6580Stephanie Tonnesen17https://orcid.org/0000-0002-8710-9206Marc Verheijen18https://orcid.org/0000-0001-9022-8081Benedetta Vulcani19https://orcid.org/0000-0003-0980-1499INAF-Osservatorio astronomico di Padova , Vicolo Osservatorio 5, I-35122 Padova, Italy ; marco.gullieuszik@inaf.itINAF-Osservatorio astronomico di Padova , Vicolo Osservatorio 5, I-35122 Padova, Italy ; marco.gullieuszik@inaf.it; Dipartimento di Fisica e Astronomia, Università di Padova , Vicolo Osservatorio 3, I-35122 Padova, ItalyINAF-Osservatorio astronomico di Padova , Vicolo Osservatorio 5, I-35122 Padova, Italy ; marco.gullieuszik@inaf.itINAF-Osservatorio astronomico di Padova , Vicolo Osservatorio 5, I-35122 Padova, Italy ; marco.gullieuszik@inaf.itMinnesota Institute for Astrophysics, School of Physics and Astronomy, University of Minnesota , 316 Church Street SE, Minneapolis, MN 55455, USADepartment of Astronomy, University of Massachusetts , 710 N. Pleasant Street, LGRT 619J, Amherst, MA 01002, USAINAF-Osservatorio astronomico di Padova , Vicolo Osservatorio 5, I-35122 Padova, Italy ; marco.gullieuszik@inaf.itINAF-Osservatorio astronomico di Padova , Vicolo Osservatorio 5, I-35122 Padova, Italy ; marco.gullieuszik@inaf.itINAF-Osservatorio astronomico di Padova , Vicolo Osservatorio 5, I-35122 Padova, Italy ; marco.gullieuszik@inaf.itINAF-Osservatorio astronomico di Padova , Vicolo Osservatorio 5, I-35122 Padova, Italy ; marco.gullieuszik@inaf.itINAF-Osservatorio astronomico di Padova , Vicolo Osservatorio 5, I-35122 Padova, Italy ; marco.gullieuszik@inaf.itINAF-Osservatorio astronomico di Padova , Vicolo Osservatorio 5, I-35122 Padova, Italy ; marco.gullieuszik@inaf.itInstituto de Radioastronomia y Astrofisica , UNAM, Campus Morelia, AP 3-72, CP 58089, MexicoInstituto de Física y Astronomía, Universidad de Valparaíso , Avda. Gran Bretaña 1111, Valparaíso, ChileSchool of Physics and Astronomy, University of Birmingham , Birmingham B15 2TT, UKSpace Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USAINAF-Osservatorio astronomico di Padova , Vicolo Osservatorio 5, I-35122 Padova, Italy ; marco.gullieuszik@inaf.it; Specola Vaticana , 00120, Vatican CityCenter for Computational Astrophysics, Flatiron Institute , 162 5th Avenue, New York, NY 10010, USAKapteyn Astronomical Institute, University of Groningen , Landleven 12, NL-9747 AV Groningen, The NetherlandsINAF-Osservatorio astronomico di Padova , Vicolo Osservatorio 5, I-35122 Padova, Italy ; marco.gullieuszik@inaf.itStar-forming, H α -emitting clumps are found embedded in the gaseous tails of galaxies undergoing intense ram pressure stripping in galaxy clusters, so-called jellyfish galaxies. These clumps offer a unique opportunity to study star formation under extreme conditions, in the absence of an underlying disk and embedded within the hot intracluster medium. Yet, a comprehensive, high-spatial-resolution study of these systems is missing. We obtained UVIS/Hubble Space Telescope (HST) data to observe the first statistical sample of clumps in the tails and disks of six jellyfish galaxies from the GASP survey; we used a combination of broadband (UV to I) filters and a narrowband H α filter. HST observations are needed to study the sizes, stellar masses, and ages of the clumps and their clustering hierarchy. These observations will be used to study the clump scaling relations and the universality of the star formation process, and to verify whether a disk is irrelevant, as hinted at by results from jellyfish galaxies. This paper presents the observations, data reduction strategy, and some general results based on the preliminary data analysis. The high spatial resolution of UVIS gives an unprecedentedly sharp view of the complex structure of the inner regions of the galaxies and of the substructures in the galaxy disks. We found clear signatures of stripping in regions very close in projection to the galactic disk. The star-forming regions in the stripped tails are extremely bright and compact and we did not detect a significant number of star-forming clumps in regions where MUSE did not detect any. The paper finally presents the development plan for the project.https://doi.org/10.3847/1538-4357/acb59bGalaxy evolutionGalaxy environmentsRam pressure stripped tailsGalaxy clustersGalactic and extragalactic astronomy |
| spellingShingle | Marco Gullieuszik Eric Giunchi Bianca M. Poggianti Alessia Moretti Claudia Scarlata Daniela Calzetti Ariel Werle Anita Zanella Mario Radovich Callum Bellhouse Daniela Bettoni Andrea Franchetto Jacopo Fritz Yara L. Jaffé Sean L. McGee Matilde Mingozzi Alessandro Omizzolo Stephanie Tonnesen Marc Verheijen Benedetta Vulcani UV and Hα HST Observations of Six GASP Jellyfish Galaxies The Astrophysical Journal Galaxy evolution Galaxy environments Ram pressure stripped tails Galaxy clusters Galactic and extragalactic astronomy |
| title | UV and Hα HST Observations of Six GASP Jellyfish Galaxies |
| title_full | UV and Hα HST Observations of Six GASP Jellyfish Galaxies |
| title_fullStr | UV and Hα HST Observations of Six GASP Jellyfish Galaxies |
| title_full_unstemmed | UV and Hα HST Observations of Six GASP Jellyfish Galaxies |
| title_short | UV and Hα HST Observations of Six GASP Jellyfish Galaxies |
| title_sort | uv and hα hst observations of six gasp jellyfish galaxies |
| topic | Galaxy evolution Galaxy environments Ram pressure stripped tails Galaxy clusters Galactic and extragalactic astronomy |
| url | https://doi.org/10.3847/1538-4357/acb59b |
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