High-spectral-resolution Observations of the Optical Filamentary Nebula Surrounding NGC 1275
We present new high-spectral-resolution observations ( R = λ /Δ λ = 7000) of the filamentary nebula surrounding NGC 1275, the central galaxy of the Perseus cluster. These observations have been obtained with SITELLE, an imaging Fourier transform spectrometer installed on the Canada–France–Hawai Tel...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2024-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/ad0fd8 |
| _version_ | 1827355025004822528 |
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| author | Benjamin Vigneron Julie Hlavacek-Larrondo Carter Lee Rhea Marie-Lou Gendron-Marsolais Jeremy Lim Jake Reinheimer Yuan Li Laurent Drissen Greg L. Bryan Megan Donahue Alastair Edge Andrew Fabian Stephen Hamer Thomas Martin Michael McDonald Brian McNamara Annabelle Richard-Lafferrière Laurie Rousseau-Nepton G. Mark Voit Tracy Webb Norbert Werner |
| author_facet | Benjamin Vigneron Julie Hlavacek-Larrondo Carter Lee Rhea Marie-Lou Gendron-Marsolais Jeremy Lim Jake Reinheimer Yuan Li Laurent Drissen Greg L. Bryan Megan Donahue Alastair Edge Andrew Fabian Stephen Hamer Thomas Martin Michael McDonald Brian McNamara Annabelle Richard-Lafferrière Laurie Rousseau-Nepton G. Mark Voit Tracy Webb Norbert Werner |
| author_sort | Benjamin Vigneron |
| collection | DOAJ |
| description | We present new high-spectral-resolution observations ( R = λ /Δ λ = 7000) of the filamentary nebula surrounding NGC 1275, the central galaxy of the Perseus cluster. These observations have been obtained with SITELLE, an imaging Fourier transform spectrometer installed on the Canada–France–Hawai Telescope with a field of view of $11^{\prime} \times 11^{\prime} $ , encapsulating the entire filamentary structure of ionized gas despite its large size of 80 kpc × 50 kpc. Here, we present renewed fluxes, velocities, and velocity dispersion maps that show in great detail the kinematics of the optical nebula at [S ii ] λ 6716, [S ii ] λ 6731, [N ii ] λ 6584, H α (6563 Å), and [N ii ] λ 6548. These maps reveal the existence of a bright flattened disk-shaped structure in the core extending to r ∼10 kpc and dominated by a chaotic velocity field. This structure is located in the wake of X-ray cavities and characterized by a high mean velocity dispersion of 134 km s ^−1 . The disk-shaped structure is surrounded by an extended array of filaments spread out to r ∼ 50 kpc that are 10 times fainter in flux, remarkably quiescent, and have a uniform mean velocity dispersion of 44 km s ^−1 . This stability is puzzling given that the cluster core exhibits several energetic phenomena. Based on these results, we argue that there are two mechanisms that form multiphase gas in clusters of galaxies: a first triggered in the wake of X-ray cavities leading to more turbulent multiphase gas and a second, distinct mechanism, that is gentle and leads to large-scale multiphase gas spreading throughout the core. |
| first_indexed | 2024-03-08T04:03:32Z |
| format | Article |
| id | doaj.art-5b391d88c8d74f079de0cfed8ad5e4cb |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-08T04:03:32Z |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-5b391d88c8d74f079de0cfed8ad5e4cb2024-02-09T10:20:05ZengIOP PublishingThe Astrophysical Journal1538-43572024-01-0196219610.3847/1538-4357/ad0fd8High-spectral-resolution Observations of the Optical Filamentary Nebula Surrounding NGC 1275Benjamin Vigneron0https://orcid.org/0000-0002-2478-5119Julie Hlavacek-Larrondo1https://orcid.org/0000-0001-7271-7340Carter Lee Rhea2https://orcid.org/0000-0003-2001-1076Marie-Lou Gendron-Marsolais3https://orcid.org/0000-0002-2478-5119Jeremy Lim4https://orcid.org/0000-0003-4220-2404Jake Reinheimer5Yuan Li6https://orcid.org/0000-0001-5262-6150Laurent Drissen7https://orcid.org/0000-0003-1278-2591Greg L. Bryan8https://orcid.org/0000-0003-2630-9228Megan Donahue9https://orcid.org/0000-0002-2808-0853Alastair Edge10https://orcid.org/0000-0002-3398-6916Andrew Fabian11https://orcid.org/0000-0002-9378-4072Stephen Hamer12https://orcid.org/0000-0003-1932-0162Thomas Martin13https://orcid.org/0000-0002-3074-9608Michael McDonald14https://orcid.org/0000-0001-5226-8349Brian McNamara15https://orcid.org/0000-0002-2622-2627Annabelle Richard-Lafferrière16https://orcid.org/0000-0001-7597-270XLaurie Rousseau-Nepton17https://orcid.org/0000-0002-5136-6673G. Mark Voit18https://orcid.org/0000-0002-3514-0383Tracy Webb19https://orcid.org/0000-0002-0104-9653Norbert Werner20https://orcid.org/0000-0003-0392-0120Département de Physique, Université de Montréal , Succ. Centre-Ville, Montréal, Québec H3C 3J7, Canada ; benjamin.vigneron@umontreal.caDépartement de Physique, Université de Montréal , Succ. Centre-Ville, Montréal, Québec H3C 3J7, Canada ; benjamin.vigneron@umontreal.ca; Centre de recherche en astrophysique du Québec (CRAQ) , CanadaDépartement de Physique, Université de Montréal , Succ. Centre-Ville, Montréal, Québec H3C 3J7, Canada ; benjamin.vigneron@umontreal.ca; Centre de recherche en astrophysique du Québec (CRAQ) , CanadaInstituto de Astrofísica de Andalucía , IAA-CSIC, Apartado 3004, E-18080 Granada, SpainDepartment of Physics, The University of Hong Kong , Pokfulam Road, Hong KongDepartment of Physics, University of North Texas , Denton, TX 76203, USADepartment of Physics, University of North Texas , Denton, TX 76203, USACentre de recherche en astrophysique du Québec (CRAQ) , Canada; Département de physique, de génie physique et d’optique, Université Laval , Québec G1V 0A6, Canada; Department of Physics and Astronomy, University of Hawai’i at Hilo , Hilo, HI 96720, USA; Canada–France–Hawaii Telescope , 65-1238 Mamalahoa Hwy, Kamuela, HI 96743, USADepartment of Astronomy, Columbia University , 550 West 120th Street, New York, NY 10027, USA; Center for Computational Astrophysics, Flatiron Institute , 162 5th Avenue, New York, NY 10010, USADepartment of Physics and Astronomy, Michigan State University , East Lansing, MI 48824, USADepartment of Physics, Durham University , South Road, Durham DH1 3LE, UKInstitute of Astronomy, University of Cambridge , Madingley Road, Cambridge CB3 0HA, UKInstitute of Astronomy, University of Cambridge , Madingley Road, Cambridge CB3 0HA, UKCentre de recherche en astrophysique du Québec (CRAQ) , Canada; Département de physique, de génie physique et d’optique, Université Laval , Québec G1V 0A6, CanadaKavli Institute for Astrophysics and Space Research , MIT, Cambridge, MA 02139, USADepartment of Physics and Astronomy, University of Waterloo , 200 University Avenue West, Waterloo, ON N2L 3G1, CanadaInstitute of Astronomy, University of Cambridge , Madingley Road, Cambridge CB1 0HA, UKCanada–France–Hawaii Telescope , 65-1238 Mamalahoa Hwy, Kamuela, HI 96743, USADepartment of Physics and Astronomy, Michigan State University , East Lansing, MI 48824, USADepartment of Physics, McGill Space Institute, McGill University , 3600 rue University, Montreal H3A 2T8, CanadaDepartment of Theoretical Physics and Astrophysics, Faculty of Science, Masaryk University , Brno, Czech RepublicWe present new high-spectral-resolution observations ( R = λ /Δ λ = 7000) of the filamentary nebula surrounding NGC 1275, the central galaxy of the Perseus cluster. These observations have been obtained with SITELLE, an imaging Fourier transform spectrometer installed on the Canada–France–Hawai Telescope with a field of view of $11^{\prime} \times 11^{\prime} $ , encapsulating the entire filamentary structure of ionized gas despite its large size of 80 kpc × 50 kpc. Here, we present renewed fluxes, velocities, and velocity dispersion maps that show in great detail the kinematics of the optical nebula at [S ii ] λ 6716, [S ii ] λ 6731, [N ii ] λ 6584, H α (6563 Å), and [N ii ] λ 6548. These maps reveal the existence of a bright flattened disk-shaped structure in the core extending to r ∼10 kpc and dominated by a chaotic velocity field. This structure is located in the wake of X-ray cavities and characterized by a high mean velocity dispersion of 134 km s ^−1 . The disk-shaped structure is surrounded by an extended array of filaments spread out to r ∼ 50 kpc that are 10 times fainter in flux, remarkably quiescent, and have a uniform mean velocity dispersion of 44 km s ^−1 . This stability is puzzling given that the cluster core exhibits several energetic phenomena. Based on these results, we argue that there are two mechanisms that form multiphase gas in clusters of galaxies: a first triggered in the wake of X-ray cavities leading to more turbulent multiphase gas and a second, distinct mechanism, that is gentle and leads to large-scale multiphase gas spreading throughout the core.https://doi.org/10.3847/1538-4357/ad0fd8AGN host galaxiesActive galaxiesBrightest cluster galaxiesFilamentary nebulaePerseus Cluster |
| spellingShingle | Benjamin Vigneron Julie Hlavacek-Larrondo Carter Lee Rhea Marie-Lou Gendron-Marsolais Jeremy Lim Jake Reinheimer Yuan Li Laurent Drissen Greg L. Bryan Megan Donahue Alastair Edge Andrew Fabian Stephen Hamer Thomas Martin Michael McDonald Brian McNamara Annabelle Richard-Lafferrière Laurie Rousseau-Nepton G. Mark Voit Tracy Webb Norbert Werner High-spectral-resolution Observations of the Optical Filamentary Nebula Surrounding NGC 1275 The Astrophysical Journal AGN host galaxies Active galaxies Brightest cluster galaxies Filamentary nebulae Perseus Cluster |
| title | High-spectral-resolution Observations of the Optical Filamentary Nebula Surrounding NGC 1275 |
| title_full | High-spectral-resolution Observations of the Optical Filamentary Nebula Surrounding NGC 1275 |
| title_fullStr | High-spectral-resolution Observations of the Optical Filamentary Nebula Surrounding NGC 1275 |
| title_full_unstemmed | High-spectral-resolution Observations of the Optical Filamentary Nebula Surrounding NGC 1275 |
| title_short | High-spectral-resolution Observations of the Optical Filamentary Nebula Surrounding NGC 1275 |
| title_sort | high spectral resolution observations of the optical filamentary nebula surrounding ngc 1275 |
| topic | AGN host galaxies Active galaxies Brightest cluster galaxies Filamentary nebulae Perseus Cluster |
| url | https://doi.org/10.3847/1538-4357/ad0fd8 |
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