Sale, SE and Drew, JE and Barentsen, G and Farnhill, HJ and Raddi, R and Barlow, MJ and Eisloffel, J and Vink, JS and Rodriguez-Gil, P and Wright, NJ (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. ISSN 1365-2966

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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.

Item Type: Article
Additional Information: This article was accepted for publication in the Monthly Notices of the Royal Astronomical Society © 2014, published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
Uncontrolled Keywords: surveys, stars, fundamental parameters, dust, extinction, ISM, structure
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Divisions: Faculty of Natural Sciences > School of Physical and Geographical Sciences
Depositing User: Symplectic
Date Deposited: 12 Dec 2016 15:29
Last Modified: 12 Dec 2016 16:32
URI: http://eprints.keele.ac.uk/id/eprint/2627

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