NAM2019
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  • NAM2019
    • Registration
    • Key Dates & Outline Schedule
    • Practical Information
    • Exhibitors
    • Grants & Bursaries
    • Contacts
  • Science
    • Science Programme
    • Parallel Sessions
    • Plenary Talks
    • Community Session
    • Special Lunches
    • Posters
    • Presenter Guidelines
  • Social
    • What's On
    • Welcome Reception
    • RAS Awards Dinner
  • Media
  • Outreach
    • Outreach and Education Day
    • Fringe Event
    • School Visit Day
  • Lancaster
    • Travel
    • Accommodation
    • Childcare
    • Campus Map
    • About Lancaster
    • Code of Conduct

Programme by Session

Schedule

id
Monday
date time
PM2
17:15
Abstract
Witnessing galaxy group evolution using X-ray observations

Abstract details

id
Witnessing galaxy group evolution using X-ray observations
Date Submitted
2019-03-15 08:57:21
Jacob
Crossett
University of Birmingham
Cosmic Web: Bridging Galaxies and Cosmology
Talk
J. Crossett (University of Birmingham), S. McGee (University of Birmingham), T. Ponman (University of Birmingham), M. Ramos-Ceja (University of Bonn)
We present results from the XXL and GAMA surveys investigating the evolution of galaxies in groups at different stages of formation. We compare the galaxy properties of optically selected groups with matched aperture X-ray photometry to test whether differences in the X-ray emitting gas are linked to differences in the group age or feedback history.

We find that galaxy groups with high X-ray luminosity contain a lower fraction of blue, star forming galaxies, when compared with low X-ray luminosity groups. The X-ray bright groups also have a more dominant, passive central galaxy, than seen in low X-ray luminosity groups. These results demonstrate that our group samples can separated by group formation time, allowing a comparison of environmental quenching mechanisms at different epochs.

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