Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. Virgo Filaments. V. Disrupting the Baryon Cycle in the NGC 5364 Galaxy Group
 
research article

Virgo Filaments. V. Disrupting the Baryon Cycle in the NGC 5364 Galaxy Group

Finn, Rose A.
•
Rudnick, Gregory
•
Jablonka, Pascale  
Show more
May 20, 2025
Astrophysical Journal

The Virgo Filament Survey (VFS) is a comprehensive study of galaxies that reside in the extended filamentary structures surrounding the Virgo Cluster, out to 12 virial radii. The primary goal is to characterize all of the dominant baryonic components within galaxies and to understand whether and how they are affected by the filament environment. A key constituent of VFS is a narrowband Hα imaging survey of over 600 galaxies, VFS-Hα. The Hα images reveal detailed, resolved maps of the ionized gas and massive star formation. This imaging is particularly powerful as a probe of environmentally induced quenching because different physical processes affect the spatial distribution of star formation in different ways. In this paper, we present the first results from the VFS-Hα for the NGC 5364 group, a low-mass ( log 10 ( M dyn / M ⊙ ) < 13 ) system located at the western edge of the Virgo III filament. We combine Hα imaging with resolved H i observations from MeerKAT for eight group members. These galaxies exhibit peculiar morphologies, including strong distortions in the stars and the gas, truncated H i and Hα disks, H i tails, extraplanar Hα emission, and off-center Hα emission. These signatures are suggestive of environmental processing such as tidal interactions, ram pressure stripping, and starvation. We quantify the role of ram pressure stripping expected in this group, and find that it can explain the cases of H i tails and truncated Hα for all but one of the disk-dominated galaxies. Our observations indicate that multiple physical mechanisms are disrupting the baryon cycle in these group galaxies.

  • Files
  • Details
  • Metrics
Loading...
Thumbnail Image
Name

Finn_2025_ApJ_985_81.pdf

Type

Main Document

Version

Published version

Access type

openaccess

License Condition

CC BY

Size

1.91 MB

Format

Adobe PDF

Checksum (MD5)

763382dccec579bd33fcfbb701c4ebb3

Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés