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An intermediate-band photometric study of the "globular cluster" NGC 2419

Koch, A. ; Frank, M. ; Feltzing, S. LU orcid ; Adén, D. LU ; Kacharov, N. and Wilkinson, M. I. (2013) 2012 Reading the Book of Globular Clusters with the Lens of Stellar Evolution p.67-70
Abstract

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.

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author
; ; ; ; and
organization
publishing date
type
Contribution to conference
publication status
published
subject
keywords
Galaxies: photometry, Galaxy: halo, Globular clusters: general, Globular clusters: individual (NGC 2419)
pages
4 pages
conference name
2012 Reading the Book of Globular Clusters with the Lens of Stellar Evolution
conference location
Monte Porzio Catone, Italy
conference dates
2012-11-26 - 2012-11-28
external identifiers
  • scopus:85056174392
language
English
LU publication?
yes
additional info
Publisher Copyright: © SAIt 2013
id
a2033ba0-07d5-4b38-ad5d-d767b98d8836
date added to LUP
2022-01-04 16:51:49
date last changed
2024-01-05 23:29:31
@misc{a2033ba0-07d5-4b38-ad5d-d767b98d8836,
  abstract     = {{<p>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.</p>}},
  author       = {{Koch, A. and Frank, M. and Feltzing, S. and Adén, D. and Kacharov, N. and Wilkinson, M. I.}},
  keywords     = {{Galaxies: photometry; Galaxy: halo; Globular clusters: general; Globular clusters: individual (NGC 2419)}},
  language     = {{eng}},
  pages        = {{67--70}},
  title        = {{An intermediate-band photometric study of the "globular cluster" NGC 2419}},
  year         = {{2013}},
}