Law, David R. and Majewski, Steven R. and Skrutskie, Michael F. and Carpenter, John M. and Ayub, Hina F. (2003) 2MASS Studies of Differential Reddening across Three Massive Globular Clusters. Astronomical Journal, 126 (4). pp. 1871-1887. ISSN 1538-3881. doi:10.1086/377626. https://resolver.caltech.edu/CaltechAUTHORS:20170408-165154473
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Abstract
J-, H-, and Ks-band data from the Two Micron All Sky Survey (2MASS) are used to study the effects of differential reddening across the three massive Galactic globular clusters ω Centauri, NGC 6388, and NGC 6441. Evidence is found that variable extinction may produce false detections of tidal tails around ω Centauri. We also investigate what appears to be relatively strong differential reddening toward NGC 6388 and NGC 6441 and find that differential extinction may be exaggerating the need for a metallicity spread to explain the width of the red giant branches for these two clusters. Finally, we consider the implications of these results for the connection between unusual, multipopulation globular clusters and the cores of dwarf spheroidal galaxies (dSph).
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| Additional Information: | © 2003. The American Astronomical Society. Received 2003 May 19; accepted 2003 June 19. The authors would like to thank S. Leon and G. Meylan for helpful discussion regarding the effects of reddening on ω Centauri. This publication makes use of data products from the Two Micron All Sky Survey, which is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center, funded by the National Aeronautics and Space Administration and the National Science Foundation. This work has been undertaken with the support of NASA/JPL contract 1228235 as well as a David and Lucille Packard Foundation Fellowship. | ||||||||||
| Group: | Infrared Processing and Analysis Center (IPAC) | ||||||||||
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| Subject Keywords: | Galaxy: structure; globular clusters: general; globular clusters: individual (ω Centauri NGC 6388 NGC 6441) | ||||||||||
| Issue or Number: | 4 | ||||||||||
| DOI: | 10.1086/377626 | ||||||||||
| Record Number: | CaltechAUTHORS:20170408-165154473 | ||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20170408-165154473 | ||||||||||
| Official Citation: | David R. Law et al 2003 AJ 126 1871 | ||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||
| ID Code: | 76267 | ||||||||||
| Collection: | CaltechAUTHORS | ||||||||||
| Deposited By: | 1Science Import | ||||||||||
| Deposited On: | 09 Mar 2018 21:41 | ||||||||||
| Last Modified: | 15 Nov 2021 16:58 |
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