Sofia Feltzing
Professor of astronomy
An intermediate-band photometric study of the "globular cluster" NGC 2419
Author
Summary, in English
NGC 2419 is one of the remotest star clusters in the Milky Way halo and its exact nature is yet unclear. While it has traits reminiscent of a globular cluster, its large radius and suggestions of an abundance spread have fueled the discussion about its origin in an extragalactic environment, possibly the remnant of the accretion of a dwarf galaxy. Here, we present first results from deep intermediate-band photometry of NGC 2419, which enables us to search for chemical (light element) abundance variations, metallicity spreads, and thus multiple stellar populations through well calibrated Strömgren indices.
Department/s
- Lund Observatory - Has been reorganised
Publishing year
2013
Language
English
Pages
67-70
Document type
Conference - other
Topic
- Astronomy, Astrophysics and Cosmology
Keywords
- Galaxies: photometry
- Galaxy: halo
- Globular clusters: general
- Globular clusters: individual (NGC 2419)
Conference name
2012 Reading the Book of Globular Clusters with the Lens of Stellar Evolution
Conference date
2012-11-26 - 2012-11-28
Conference place
Monte Porzio Catone, Italy
Status
Published