2019MNRAS.482..715L

Query : 2019MNRAS.482..715L

2019MNRAS.482..715L - Mon. Not. R. Astron. Soc., 482, 715-731 (2019/January-1)

The white dwarf luminosity functions from the Pan-STARRS 1 3π Steradian Survey.

LAM M.C., HAMBLY N.C., ROWELL N., CHAMBERS K.C., GOLDMAN B., HODAPP K.W., KAISER N., KUDRITZKI R.-P., MAGNIER E.A., TONRY J.L., WAINSCOAT R.J. and WATERS C.

Abstract (from CDS):

A large sample of white dwarfs is selected by both proper motion and colours from the Pan-STARRS 1 3πSteradian 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 generalized 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 per cent of the 3πsky and 62 per cent 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.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): surveys - proper motions - stars: luminosity function, mass function - white dwarfs - solar neighbourhood

VizieR on-line data: <Available at CDS (J/MNRAS/482/715): tablea1.dat>

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Gal Anticenter reg 05 46 +28.9           ~ 1024 0
2 NAME NGP reg 12 51 26.275 +27 07 41.70           ~ 1274 0
3 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
4 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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