Lam, Marco C 
ORCID: 0000-0002-9347-2298, Hambly, Nigel C, Rowell, Nicholas, Chambers, Kenneth C, Goldman, Bertrand, Hodapp, Klaus W, Kaiser, Nick, Kudritzki, Rolf-Peter, Magnier, Eugene A, Tonry, John L et al (show 2 more authors)
(2019)
The white dwarf luminosity functions from the Pan-STARRS 1 3π Steradian Survey.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 482 (1).
pp. 715-731.
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Abstract
A large sample of white dwarfs is selected by both proper motion and colours from the Pan-STARRS 1 3{\pi} Steradian Survey Processing Version 2 to construct the White Dwarf Luminosity Functions of the discs and halo in the solar neighbourhood. Four-parameter astrometric solutions were recomputed from the epoch data. The generalised maximum volume method is then used to calculate the density of the populations. After removal of crowded areas near the Galactic plane and centre, the final sky area used by this work is 7.833 sr, which is 83% of the 3{\pi} sky and 62% of the whole sky. By dividing the sky using Voronoi tessellation, photometric and astrometric uncertainties are recomputed at each step of the integration to improve the accuracy of the maximum volume. Interstellar reddening is considered throughout the work. We find a disc-to-halo white dwarf ratio of about 100.
| Item Type: | Article |
|---|---|
| Additional Information: | 18 pages, 13 figures, 2 tables in text, 4 tables in Appendix A, supplementary online materials are available on MNRAS. Accepted for publication on 3 Oct 2018 |
| Uncontrolled Keywords: | surveys, proper motions, stars: luminosity function, mass function, white dwarfs, solar neighbourhood |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 21 Feb 2020 11:12 |
| Last Modified: | 05 Oct 2023 12:15 |
| DOI: | 10.1093/mnras/sty2710 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3075760 |
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