FSR 1735 - a new globular cluster candidate in the inner Galaxy

Froebrich, Dirk and Meusinger, H. and Scholz, Alexander (2007) FSR 1735 - a new globular cluster candidate in the inner Galaxy. Monthly Notices of the Royal Astronomical Society, 377 (1). L54-L58 . ISSN 0035-8711. (The full text of this publication is not available from this repository)

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Abstract

We carry out a large program to classify newly discovered star clusters from Froebrich, Scholz & Raftery in the inner Galaxy. Here, we present a first analysis of a new high-priority globular cluster candidate, FSR 1735 at l = 339.1879; b= -1.8534, based on new deep, near-infrared observations from Sofi at the ESO New Technology Telescope (NTT). A significant peak in the K-band luminosity function is found, which is interpreted as the clump of post-He-flash stars. The distance and the reddening of the cluster are determined to 9.1 kpc and A(K) = 0.5 mag, respectively, the metallicity is estimated to be [M/H]= - 0.8. Radial star density profiles are used to measure the core radius and the tidal radius of the cluster. The lack of signs for ongoing star formation and the position in the Galaxy pose strong arguments against the interpretation of this object as a young or old open cluster. All the observational evidence is in agreement with the interpretation that FSR 1735 is a so far unknown globular cluster in the inner Galaxy.

Item Type: Article
Uncontrolled keywords: globular clusters : individual : FSR 1735
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences > Centre for Astrophysics and Planetary Sciences
Depositing User: Louise Dorman
Date Deposited: 25 Apr 2008 09:46
Last Modified: 17 Jul 2014 13:29
Resource URI: http://kar.kent.ac.uk/id/eprint/2836 (The current URI for this page, for reference purposes)
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