Galactic reddening in 3D from stellar photometry – an improved map
| Autor: | Rolf-Peter Kudritzki, Edward F. Schlafly, Peter W. Draper, Hans-Walter Rix, Douglas P. Finkbeiner, Nicolas F. Martin, Christopher Waters, Gregory M. Green, William S. Burgett, Eugene A. Magnier, Richard J. Wainscoat, Nick Kaiser, Klaus W. Hodapp, John L. Tonry, Nigel Metcalfe, H. Flewelling |
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| Přispěvatelé: | Observatoire astronomique de Strasbourg (ObAS), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
media_common.quotation_subject
FOS: Physical sciences Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics 01 natural sciences Declination Photometry (optics) symbols.namesake 0103 physical sciences Astrophysics::Solar and Stellar Astrophysics Planck structure -Galaxy 010303 astronomy & astrophysics Astrophysics::Galaxy Astrophysics media_common Cosmic dust Physics extinction -ISM Extinction 010308 nuclear & particles physics Astronomy and Astrophysics Astrophysics - Astrophysics of Galaxies Galaxy Stars 13. Climate action Space and Planetary Science Sky [SDU]Sciences of the Universe [physics] Astrophysics of Galaxies (astro-ph.GA) symbols Astrophysics::Earth and Planetary Astrophysics dust |
| Zdroj: | Monthly Notices of the Royal Astronomical Society Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2018, 478 (1), pp.651-666. ⟨10.1093/mnras/sty1008⟩ NASA Astrophysics Data System Monthly notices of the Royal Astronomical Society, 2018, Vol.478(1), pp.651-666 [Peer Reviewed Journal] |
| ISSN: | 0035-8711 1365-2966 |
| DOI: | 10.1093/mnras/sty1008⟩ |
| Popis: | We present a new 3D map of interstellar dust reddening, covering three quarters of the sky (declinations greater than -30 degrees) out to a distance of several kiloparsecs. The map is based on high-quality stellar photometry of 800 million stars from Pan-STARRS 1 and 2MASS. We divide the sky into sightlines containing a few hundred stars each, and then infer stellar distances and types, along with the line-of-sight dust distribution. Our new map incorporates a more accurate average extinction law and an additional 1.5 years of Pan-STARRS 1 data, tracing dust to greater extinctions and at higher angular resolutions than our previous map. Out of the plane of the Galaxy, our map agrees well with 2D reddening maps derived from far-infrared dust emission. After accounting for a 15% difference in scale, we find a mean scatter of 10% between our map and the Planck far-infrared emission-based dust map, out to a depth of 0.8 mag in E(r-z), with the level of agreement varying over the sky. Our map can be downloaded at http://argonaut.skymaps.info, or by its DOI: 10.7910/DVN/LCYHJG. Submitted to MNRAS. 17 pages, 16 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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