Sale, SE;
Drew, JE;
Barentsen, G;
Farnhill, HJ;
Raddi, R;
Barlow, MJ;
Eislöffel, J;
... Wright, NJ; + view all
(2014)
A 3D extinction map of the northern Galactic plane based on IPHAS photometry.
Monthly Notices of the Royal Astronomical Society
, 443
(4)
pp. 2907-2922.
10.1093/mnras/stu1090.
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Abstract
We present a 3D map of extinction in the northern Galactic plane derived using photometry from the INT/WFC Photometric Hα Survey of the northern Galactic plane. The map has fine angular ( ∼ 10 arcmin) and distance (100 pc) sampling allied to a significant depth (≳5 kpc). We construct the map using a method based on a hierarchical Bayesian model described in a previous article by Sale. In addition to mean extinction, we also measure differential extinction, which arises from the fractal nature of the interstellar medium, and show that it will be the dominant source of uncertainty in estimates of extinction to some arbitrary position. The method applied also furnishes us with photometric estimates of the distance, extinction, effective temperature, surface gravity, and mass for ∼38 million stars. Both the extinction map and the catalogue of stellar parameters are made publicly available via http://www.iphas.org/extinction.
| Type: | Article |
|---|---|
| Title: | A 3D extinction map of the northern Galactic plane based on IPHAS photometry |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1093/mnras/stu1090 |
| Publisher version: | https://doi.org/10.1093/mnras/stu1090 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | surveys, stars: fundamental parameters, dust, extinction, ISM: structure |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10093780 |
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