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The WAGGS project - I. The WiFeS Atlas of Galactic Globular cluster Spectra

Usher, C, Pastorello, N, Bellstedt, S, Alabi, A, Cerulo, P, Chevalier, L, Fraser-McKelvie, A, Penny, S, Foster, C, McDermid, RM, Schiavon, RP and Villaume, A (2017) The WAGGS project - I. The WiFeS Atlas of Galactic Globular cluster Spectra. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 468 (4). pp. 3828-3849. ISSN 0035-8711

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Abstract

We present the WiFeS Atlas of Galactic Globular cluster Spectra, a library of integrated spectra of Milky Way and Local Group globular clusters. We used the WiFeS integral field spectrograph on the Australian National University 2.3 m telescope to observe the central regions of 64 Milky Way globular clusters and 22 globular clusters hosted by the Milky Way’s low-mass satellite galaxies. The spectra have wider wavelength coverage (3300–9050 Å) and higher spectral resolution (R = 6800) than existing spectral libraries of Milky Way globular clusters. By including Large and Small Magellanic Cloud star clusters, we extend the coverage of parameter space of existing libraries towards young and intermediate ages. While testing stellar population synthesis models and analysis techniques is the main aim of this library, the observations may also further our understanding of the stellar populations of Local Group globular clusters and make possible the direct comparison of extragalactic globular cluster integrated light observations with well-understood globular clusters in the Milky Way. The integrated spectra are publicly available via the project website.

Item Type: Article
Additional Information: This is a pre-copyedited, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The version of record Christopher Usher, Nicola Pastorello, Sabine Bellstedt, Adebusola Alabi, Pierluigi Cerulo, Leonie Chevalier, Amelia Fraser-McKelvie, Samantha Penny, Caroline Foster, Richard M. McDermid, Ricardo P. Schiavon, Alexa Villaume; The WAGGS project – I. The WiFeS Atlas of Galactic Globular cluster Spectra, Monthly Notices of the Royal Astronomical Society, Volume 468, Issue 4, 11 July 2017, Pages 3828–3849 is available online at: http://dx.doi.org/10.1093/mnras/stx713
Uncontrolled Keywords: 0201 Astronomical And Space Sciences
Subjects: Q Science > QB Astronomy
Divisions: Astrophysics Research Institute
Publisher: OXFORD UNIV PRESS
Related URLs:
Date Deposited: 02 Feb 2018 13:55
Last Modified: 02 Feb 2018 13:55
DOI or Identification number: 10.1093/mnras/stx713
URI: http://researchonline.ljmu.ac.uk/id/eprint/7934

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