Journal article
The Interstellar Extinction Towards the Milky Way Bulge with Planetary Nebulae, Red Clump, and RR Lyrae Stars
Publications of the Astronomical Society of Australia, Vol.33, 024
06/28/2016
DOI: 10.1017/pasa.2016.16
Abstract
I review the literature covering the issue of interstellar extinction towards the Milky Way bulge, with emphasis placed on findings from planetary nebulae, RR Lyrae, and red clump stars. I also report on observations from HI gas and globular clusters. I show that there has been substantial progress in this field in recent decades, most particularly from red clump stars. The spatial coverage of extinction maps has increased by a factor similar to 100x in the past 20 yr, and the total-to-selective extinction ratios reported have shifted by similar to 20-25%, indicative of the improved accuracy and separately, of a steeper-than-standard extinction curve. Problems remain in modelling differential extinction, explaining anomalies involving the planetary nebulae, and understanding the difference between bulge extinction coefficients and 'standard' literature values.
Details
- Title: Subtitle
- The Interstellar Extinction Towards the Milky Way Bulge with Planetary Nebulae, Red Clump, and RR Lyrae Stars
- Creators
- David M. Nataf - Australian National University
- Resource Type
- Journal article
- Publication Details
- Publications of the Astronomical Society of Australia, Vol.33, 024
- Publisher
- Cambridge Univ Press
- DOI
- 10.1017/pasa.2016.16
- ISSN
- 1323-3580
- eISSN
- 1448-6083
- Number of pages
- 10
- Grant note
- FL110100012 / Australian Research Council grant; Australian Research Council
- Language
- English
- Date published
- 06/28/2016
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984701735802771
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