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XRISM/Resolve view of Abell 2319: Turbulence, sloshing, and ICM dynamics

Journal Article · · Publications of the Astronomical Society of Japan
DOI:https://doi.org/10.1093/pasj/psaf109· OSTI ID:3015316
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  1. University of Geneva Department of Astronomy, , Chemin Pegasi, 51, Versoix CH-1290 ,
  2. Ehime University Department of Physics, , 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577 ,
  3. University of Maryland Department of Astronomy, , 4296 Stadium Dr., College Park, MD 20742-2421 ,; NASA/Goddard Space Flight Center , Greenbelt, MD 20771 ,; Center for Research and Exploration in Space Science and Technology, NASA/GSFC (CRESST II) , Greenbelt, MD 20771 ,
  4. University of Tokyo Department of Physics, , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 ,
  5. Technion Department of Physics, , Technion City, Haifa 3200003 ,
  6. NASA/Goddard Space Flight Center , Greenbelt, MD 20771 ,; Center for Research and Exploration in Space Science and Technology, NASA/GSFC (CRESST II) , Greenbelt, MD 20771 ,; Center for Space Sciences and Technology, University of Maryland , Baltimore County (UMBC), 1000 Hilltop Circle, Baltimore, MD 21250 ,
  7. Center for Astrophysics | Harvard-Smithsonian , 60 Garden St, Cambridge, MA 02138 ,
  8. Lawrence Livermore National Laboratory , 7000 East Ave, Livermore, CA 94550 ,
  9. University of Michigan Department of Astronomy, , 323 West Hall, 1085 S University Ave, Ann Arbor, MI 48109 ,
  10. SRON Netherlands Institute for Space Research , Niels Bohrweg 4, 2333 CA Leiden ,
  11. NASA/Goddard Space Flight Center , Greenbelt, MD 20771 ,
  12. European Southern Observatory (ESO) , Karl-Schwarzschild-Strasse 2, 85748 Garching bei München ,
  13. University of Durham Centre for Extragalactic Astronomy, Department of Physics, , South Road, Durham DH1 3LE ,
  14. Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA) , 3-1-1 Yoshinodai, Chuo-ku, Sagamihara, Kanagawa 252-5210 ,
  15. Kumamoto Gakuen University Department of Economics, , 2-5-1 Oe, Chuo-ku, Kumamoto, Kumamoto 862-8680 ,
  16. Kyoto University, Kitashirakawa Oiwakecho Department of Physics, , Sakyo-ku, Kyoto, Kyoto 606-8502 ,
  17. Tokyo Metropolitan University Department of Physics, , 1-1 Minami-Osawa, Hachioji-shi, Tokyo 192-0397 ,
  18. Hiroshima University Department of Physics, , 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526 ,
  19. Fujita Health University Department of Physics, , 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192 ,
  20. Saint Mary’s University Department of Astronomy and Physics, , 923 Robie St Halifax, Nova Scotia B3H 3C3 ,
  21. NASA/Goddard Space Flight Center , Greenbelt, MD 20771 ,; California Institute of Technology , 1200 East California Boulevard, Pasadena, CA 91125 ,
  22. European Space Agency (ESA), European Space Research and Technology Centre (ESTEC) , 2200 AG Noordwijk ,
  23. Faculty of Engineering, University of Miyazaki , 1-1 Gakuen-Kibanadai-Nishi, Miyazaki, Miyazaki 889-2192 ,
  24. RIKEN Nishina Center , 2-1 Hirosawa, Wako, Saitama 351-0198 ,
  25. SRON Netherlands Institute for Space Research , Niels Bohrweg 4, 2333 CA Leiden ,; Leiden Observatory, University of Leiden , P.O. Box 9513, NL-2300 RA, Leiden ,
  26. Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , McNair Building, 70 Vassar St, Cambridge, MA 02139 ,
  27. Saitama University Department of Physics, , 255 Shimo-Okubo, Sakura, Saitama, Saitama 338-8570 ,
  28. Rikkyo University Department of Physics, , 3-34-1 Nishi Ikebukuro, Toshima-ku, Tokyo 171-8501 ,
  29. Faculty of Physics, Tokyo University of Science , 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601 ,
  30. Faculty of Science and Technology, Tokyo University of Science , 2641 Yamazaki, Noda, Chiba 278-8510 ,
  31. Shibaura Institute of Technology Department of Electronic Information Systems, , 307 Fukasaku, Minuma-ku, Saitama, Saitama 337-8570 ,
  32. Osaka University Department of Earth and Space Science, , 1-1 Machikaneyama, Toyonaka, Osaka 560-0043 ,
  33. University of Wisconsin Department of Physics, , 2320 Chamberlin Hall, 1150 University Ave, Madison, WI 53706 ,
  34. Waterloo Centre for Astrophysics, University of Waterloo, 200 University Ave. West Department of Physics & Astronomy, , Waterloo, Ontario N2L 3G1 ,
  35. Graduate School of Science, Nagoya University , Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602 ,
  36. Science Research Education Unit, University of Teacher Education Fukuoka , 1-1 Akamabunkyo-machi, Munakata, Fukuoka 811-4192 ,
  37. Hiroshima Astrophysical Science Center, Hiroshima University , 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526 ,
  38. Tohoku Gakuin University Department of Data Science, , 3-1 Shimizukoji, Wakabayashi-ku, Sendai, Miyagi 984-8588 ,
  39. University of Maryland Department of Astronomy, , 4296 Stadium Dr., College Park, MD 20742-2421 ,
  40. College of Science and Engineering, Kanto Gakuin University , 1-50-1 Mutsuura-higashi, Kanazawa-ku, Yokohama, Kanagawa 236-8501 ,
  41. European Space Agency (ESA), European Space Astronomy Centre (ESAC) , E-28692 Madrid ,
  42. Faculty of Science and Engineering, KINDAI University Department of Science, , 3-4-1 Kowakae, Higashiosaka, Osaka 577-8502 ,
  43. Nara University of Education Department of Teacher Training and School Education, , Takabatake-Cho, Nara, Nara 630-8528 ,
  44. Astronomical Institute, Tohoku University , 6-3 Aramaki, Aoba-ku, Sendai, Miyagi 980-8578 ,
  45. Nara Women’s University Department of Physics, , Kitauoya-Higashimachi, Nara, Nara 630-8506 ,
  46. Faculty of Science, Kyoto Sangyo University , Motoyama, Kamigamo, Kita-ku, Kyoto, Kyoto 603-8555  
  47. School of Science and Technology, Meiji University , 1-1-1 Higashi-Mita, Tama-ku, Kawasaki, Kanagawa, 214-8571 ,
  48. Yale Center for Astronomy and Astrophysics, Yale University , PO Box 208120, New Haven, CT 06520-8120 ,
  49. Faculty of Science, University of Toyama , 3190 Gofuku, Toyama-shi, Toyama 930-8555 ,
  50. Konan University Department of Physics, , 8-9-1 Okamoto, Kobe, Hyogo 658-8501 ,
  51. Graduate School of Science and Engineering, Kagoshima University , 1-21-40 Korimoto, Kagoshima, Kagoshima 890-8580 ,
  52. Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA) , 3-1-1 Yoshinodai, Chuo-ku, Sagamihara, Kanagawa 252-5210 ,; Saitama University Department of Physics, , 255 Shimo-Okubo, Sakura, Saitama, Saitama 338-8570 ,
  53. Chuo University Department of Physics, , 3-1-1 Yoshinodai, Chuo-ku, Sagamihara, Kanagawa 252-5210 ,
  54. Faculty of Education, Shizuoka University , 836 Ohya, Suruga-ku, Shizuoka, Shizuoka 422-8529 ,
  55. Kyoto University Department of Astronomy, , Kitashirakawa Oiwakecho, Sakyo-ku, Kyoto, Kyoto 606-8502 ,
  56. Nihon Fukushi University , 26-2 Higashihaemi-cho, Handa, Aichi 422-8529 ,
  57. SRON Netherlands Institute for Space Research , Niels Bohrweg 4, 2333 CA Leiden ,; Anton Pannekoek Institute, the University of Amsterdam , Postbus 94249, 1090 GE Amsterdam ,
  58. RIKEN Cluster for Pioneering Research , 2-1 Hirosawa, Wako, Saitama, Saitama 351-0198 ,
  59. Faculty of Science, Nara Women’s University Department of Physics, , Kitauoya-Higashimachi, Nara, Nara 630-8506 ,
  60. NASA/Goddard Space Flight Center , Greenbelt, MD 20771 ,; Johns Hopkins University , 3400 N. Charles Street, Baltimore, MD 21218 ,
  61. University of Chicago Department of Astronomy and Astrophysics, , 5640 S Ellis Ave, Chicago, IL 60637 ,
+ Show Author Affiliations
Here, we present results from XRISM/Resolve observations of the core of the galaxy cluster Abell 2319, focusing on its kinematic properties. The intracluster medium (ICM) exhibits temperatures of approximately 8 keV across the core, with a prominent cold front and a high-temperature region (⁠~11 keV) in the north-west. The average gas velocity in the 3' x 4' region around the brightest cluster galaxy (BCG) covered by two Resolve pointings is consistent with that of the BCG to within 40 km s-1⁠ and we found modest average velocity dispersion of 230–250 km s-1⁠. On the other hand, spatially resolved spectroscopy reveals interesting variations. A blueshift of up to ~230 km s-1⁠ is observed around the east edge of the cold front, where the gas with the lowest specific entropy is found. The region further south inside the cold front shows only a small velocity difference from the BCG; however, its velocity dispersion is enhanced to ~400 km s -1⁠, implying the development of turbulence. These characteristics indicate that we are observing sloshing motion with some inclination angle following BCG and that gas phases with different specific entropy participate in sloshing with their own velocities, as expected from simulations. No significant evidence for a high-redshift ICM component associated with the subcluster Abell 2319B was found in the region covered by the current Resolve pointings. These results highlight the importance of sloshing and turbulence in shaping the internal structure of Abell 2319. Further deep observations are necessary to better understand the mixing and turbulent processes within the cluster.
Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
3015316
Report Number(s):
LLNL--JRNL-2011848
Journal Information:
Publications of the Astronomical Society of Japan, Journal Name: Publications of the Astronomical Society of Japan Journal Issue: 6 Vol. 77; ISSN 0004-6264; ISSN 2053-051X
Publisher:
Astronomical Society of JapanCopyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

Astronomy and AstroPhysics
X-rays: galaxies: clusters
galaxies: clusters: individual (Abell 2319)
galaxies: clusters: intracluster medium
large-scale structure of universe
turbulence