NAM2019
  • NAM2021
    • Contacts
  • Science
    • Science Programme
    • Plenary Talks
    • Parallel Sessions
    • Special Lunches/Discussion Sessions
    • Poster Session
    • NAM Community Session
  • Social
    • Presidential Address
    • Herschel Concert
    • RAS Awards Ceremony
    • Virtual Stonehenge Tour
  • Media
  • Public Engagement
    • Public engagement opportunities
    • Public talk
    • Writing Skyscapes
  • Venue
    • Code of Conduct
    • Accessing the conference
    • Gather.town
    • NAM2021 Slack
    • About Bath
  • NAM2021
    • Contacts
  • Science
    • Science Programme
    • Plenary Talks
    • Parallel Sessions
    • Special Lunches/Discussion Sessions
    • Poster Session
    • NAM Community Session
  • Social
    • Presidential Address
    • Herschel Concert
    • RAS Awards Ceremony
    • Virtual Stonehenge Tour
  • Media
  • Public Engagement
    • Public engagement opportunities
    • Public talk
    • Writing Skyscapes
  • Venue
    • Code of Conduct
    • Accessing the conference
    • Gather.town
    • NAM2021 Slack
    • About Bath

Poster

id
Drivers of stellar metallicity in galaxies
Cosmic Chemical Evolution
Justus
Neumann
Date Submitted
2021-04-30 11:50:00
ICG Portsmouth
J. Neumann (ICG Portsmouth), D. Thomas (ICG Portsmouth) C. Maraston (ICG Portsmouth), D. Goddard (ICG Portsmouth), J. Lian (University of Utah) L. Hill (ICG Portsmouth), H. Domínguez Sánchez (University of Pennsylvania), M. Bernardi (University of Pennsylvania), B. Margalef-Bentabol (University of Pennsylvania), J.K. Barrera-Ballesteros (UNAM Mexico), R. Lane (Universidad de Atacama), J.G. Fernández Trincado (Universidad de Atacama), D. Bizyaev (APO and New Mexico State University)
The distribution of stellar metallicities within and across galaxies is an excellent relic of the chemical evolution across cosmic time. Spatially resolved spectroscopic surveys offer the unique opportunity to study global and local drivers of stellar populations in galaxies. In this talk, I present results from a detailed analysis of spatially resolved stellar populations based on > 2.6 million spatial bins from 8109 nearby galaxies in the SDSS-IV MaNGA survey. Our study goes beyond the well-known global mass-metallicity relation and radial metallicity gradients by providing a statistically sound exploration of local relations between stellar metallicity, stellar surface mass density (SMD) and galactocentric distance in the global mass-morphology plane. We find a significant resolved SMD-metallicity relation for galaxies of all types and masses. The spread of the relation is mainly attributed to different radial distances. In particular, we find that at fixed SMD metallicity increases with radius. This result calls for a driver of metallicity in addition to SMD that promotes chemical enrichments in the outer parts of galaxies more strongly than in the inner parts.

NAM 2020 Logo AWRAS Logo

 

Bath University LogoUKRI STFC new

All attendees are expected to show respect and courtesy to other attendees and staff, and to adhere to the NAM Code of Conduct.

© 2023 Royal Astronomical Society

Login