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2671282 
Journal Article 
A 3D extinction map of the northern Galactic plane based on IPHAS photometry 
Sale, SE; Drew, JE; Barentsen, G; Farnhill, HJ; Raddi, R; Barlow, MJ; Eisloeffel, J; Vink, JS; Rodriguez-Gil, P; Wright, NJ 
2014 
1 
Monthly Notices of the Royal Astronomical Society
ISSN: 0035-8711
EISSN: 1365-2966 
443 
4 
2907-2922 
WOS:000342922100006 
We present a 3D map of extinction in the northern Galactic plane derived using photometry from the INT/WFC Photometric Ha Survey of the northern Galactic plane. The map has fine angular (similar to 10 arcmin) and distance (100 pc) sampling allied to a significant depth (greater than or similar to 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 similar to 38 million stars. Both the extinction map and the catalogue of stellar parameters are made publicly available via http://www.iphas.org/extinction. 
surveys; stars: fundamental parameters; dust, extinction; ISM: structure