| Autor: |
Lee, A, Green, GM, Schlafly, EF, Finkbeiner, DP, Burgett, W, Chambers, K, Flewelling, H, Hodapp, K, Kaiser, N, Kudritzki, RP, Magnier, E, Metcalfe, N, Wainscoat, R, Waters, C |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
Lee, A; Green, GM; Schlafly, EF; Finkbeiner, DP; Burgett, W; Chambers, K; et al.(2018). A Color-locus Method for Mapping RVUsing Ensembles of Stars. Astrophysical Journal, 854(2). doi: 10.3847/1538-4357/aaaa6d. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/92d07920 |
| DOI: |
10.3847/1538-4357/aaaa6d. |
| Popis: |
© 2018. The American Astronomical Society. All rights reserved. We present a simple but effective technique for measuring angular variation in RVacross the sky. We divide stars from the Pan-STARRS1 catalog into Healpix pixels and determine the posterior distribution of reddening and RVfor each pixel using two independent Monte Carlo methods. We find the two methods to be self-consistent in the limits where they are expected to perform similarly. We also find some agreement with high-precision photometric studies of RVin Perseus and Ophiuchus, as well as with a map of reddening near the Galactic plane based on stellar spectra from APOGEE. While current studies of RVare mostly limited to isolated clouds, we have developed a systematic method for comparing RVvalues for the majority of observable dust. This is a proof of concept for a more rigorous Galactic reddening map. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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