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Journal Article

Galactic reddening in 3D from stellar photometry - an improved map

MPS-Authors

Green,  Gregory M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Schlafly,  Edward F.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Finkbeiner,  Douglas
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Rix,  Hans-Walter
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Martin,  Nicolas
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Burgett,  William
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Draper,  Peter W.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Flewelling,  Heather
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Hodapp,  Klaus
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Kaiser,  Nicholas
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Kudritzki,  Rolf-Peter
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Magnier,  Eugene A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Metcalfe,  Nigel
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Tonry,  John L.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Wainscoat,  Richard
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Waters,  Christopher
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

External Resource

https://ui.adsabs.harvard.edu/abs/2018MNRAS.478..651G
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Citation

Green, G. M., Schlafly, E. F., Finkbeiner, D., Rix, H.-W., Martin, N., Burgett, W., et al. (2018). Galactic reddening in 3D from stellar photometry - an improved map. Monthly Notices of the Royal Astronomical Society, 478, 651-666.


Cite as: https://hdl.handle.net/21.11116/0000-0005-CD80-3
Abstract
We present a new 3D map of interstellar dust reddening, covering three quarters of the sky (declinations of δ ≳ -30°) 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 yr 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 25 per cent difference in scale, we find a mean scatter of ̃10 per cent between our map and the Planck far-infrared emission-based dust map, out to a depth of 0.8 mag in E(gP1 - rP1), with the level of agreement varying over the sky. Our map can be downloaded at http://argonaut.skymaps.info, or from the Harvard Dataverse (Green 2017).