Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-28T03:01:25.076Z Has data issue: false hasContentIssue false
  • English
  • Français

Three-dimensional extinction mapping using Gaussian random fields

Published online by Cambridge University Press:  17 July 2015

S.E. Sale
S.E. Sale*
Affiliation:
Rudolf Peierls Centre for Theoretical Physics, Keble Road, Oxford OX1 3NP, UK
Get access

Abstract

Disentangling the 3D structure of interstellar extinction is a key requirement for understanding the Galaxy and a crucial step towards taking full advantage of the data Gaia will provide.

We present a scheme for using stellar catalogues to map the three-dimensional distributions of extinction and dust within our Galaxy, employing Gaussian random fields and a simple physical model of the interstellar medium that assumes a Kolmogorov-like power spectrum of turbulent fluctuations. As extinction is modelled as a random field, the spatial resolution of the resulting maps is set naturally by the data available; there is no need to impose any spatial binning.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 68: The Milky Way Unravelled by Gaia: GREAT Science from the Gaia Data Releases , 2014 , pp. 283 - 286
Copyright
© EAS, EDP Sciences, 2015

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Barentsen, G., Farnhill, H.J., Drew, J.E., et al., 2014, MNRAS, 444, 3230CrossRef
Kolmogorov, A., 1941, Akademiia Nauk SSSR Doklady, 30, 301
Marshall, D.J., Robin, A.C., Reylé, C., Schultheis, M., & Picaud, S., 2006, A&A, 453, 635
Planck Collaboration, Abergel, A., Ade, P.A.R., Aghanim, N., Alina, D., Alves, M.I.R., Aniano, G., Armitage-Caplan, C., Arnaud, M., Ashdown, M., et al., 2013, [ArXiv e-prints]
Sale, S.E., 2012, MNRAS, 427, 2119CrossRef
Sale, S.E., Drew, J.E., Barentsen, G., et al., 2014, MNRAS, 443, 2907CrossRef
Sale, S.E., Drew, J.E., Unruh, Y.C., et al., 2009, MNRAS, 392, 497CrossRef
Sale, S.E., & Magorrian, J., 2014, MNRAS, 445, 256CrossRef
Schlegel, D.J., Finkbeiner, D.P., & Davis, M., 1998, ApJ, 500, 525CrossRef