A Near-Infrared Photometric Study of the Low Latitude Globular Clusters Liller 1, Djorgovski 1, HP 1, and NGC 6528

Abstract

Images recorded through J, H, Ks, 2.2 micron continuum, and 2.3 micron CO filters are used to investigate the stellar contents of the low Galactic latitude globular clusters NGC 6528, Liller 1, Djorgovski 1, and HP 1, as well as surrounding bulge fields. Metallicities are estimated for the latter three clusters by comparing the colors and CO indices of giant branch stars with those in other clusters and the bulge, while reddenings are estimated from the colors of bright bulge stars in the surrounding fields. In some cases the metallicities and reddenings are significantly different from previous estimates.

32 pages, and 28 figures

References in corpus (3)

• Galactic Globular Cluster Metallicity Scale from the Calcium Triplet. II. Rankings, Comparisons and Puzzles
• High Angular Resolution JHK Imaging of the Centers of the Metal-Poor Globular Clusters NGC5272 (M3), NGC6205 (M13), NGC6287, and NGC6341 (M92)
• The Near-Infrared Photometric Properties of Bright Giants in the Central Regions of the Galactic Bulge

Cited by in corpus (28)

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• The period-luminosity relation for type II Cepheids in globular clusters
• VLT-FLAMES Analysis of 8 giants in the Bulge Metal-poor Globular Cluster NGC 6522: Oldest Cluster in the Galaxy?
• An Accurate, Easy to Use Abundace Scale for Globular Clusters Based on 2.2um Spectra of Giant Stars
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• Three Galactic globular cluster candidates
• A new, cleaner colour-magnitude diagram for the metal-rich globular cluster NGC 6528 - Velocity dispersion in the Bulge, age and proper motion of NGC 6528
• HST-NICMOS Observations of Terzan 5: Stellar Content and Structure of the Core
• HST NICMOS Photometry of the reddened bulge globular clusters NGC 6528, Terzan 5, Liller 1, UKS 1 and Terzan 4
• V, J, H and K Imaging of the Metal Rich Globular Cluster NGC 6528
• High-resolution abundance analysis of red giants in the metal-poor bulge globular cluster HP~1
• CAPOS: The bulge Cluster APOgee Survey I. Overview and initial ASPCAP results
• Infrared Spectroscopic Study of 8 Galactic Globular Clusters
• The Evolved Red Stellar Content of M32
• A Near-Infrared Photometric Survey of Metal-Poor Inner Spheroid Globular Clusters and Nearby Bulge Fields
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• Hidden in the Haystack: Low-luminosity globular clusters towards the Milky Way bulge
• Near-Infrared Imaging of the Central Regions of Metal-Poor Inner Spheroid Globular Clusters
• Deep ALTAIR + NIRI Imaging of the Disk and Bulge of M31
• Halo intruders in the Galactic bulge revealed by HST and Gaia: the globular clusters Terzan 10 and Djorgovski 1
• Probing the Galactic Bulge with deep Adaptive Optics imaging: the age of NGC 6440
• Cluster Glimpses with Raven: AO Corrected Near and Mid-Infrared Images of Glimpse C01 and Glimpse C02
• Revisited parameters for the twin bulge globular clusters NGC 6528 and NGC 6553