2006AJ....131..571H

Query : 2006AJ....131..571H

2006AJ....131..571H - Astron. J., 131, 571-581 (2006/January-0)

The white dwarf luminosity function from Sloan Digital Sky Survey imaging data.

HARRIS H.C., MUNN J.A., KILIC M., LIEBERT J., WILLIAMS K.A., VON HIPPEL T., LEVINE S.E., MONET D.G., EISENSTEIN D.J., KLEINMAN S.J., METCALFE T.S., NITTA A., WINGET D.E., BRINKMANN J., FUKUGITA M., KNAPP G.R., LUPTON R.H., SMITH J.A. and SCHNEIDER D.P.

Abstract (from CDS):

A sample of white dwarfs is selected from the Sloan Digital Sky Survey (SDSS) Data Release 3 using their reduced proper motions, based on improved proper motions from combined SDSS and USNO-B data. Numerous SDSS and follow-up spectra (Kilic and coworkers) are used to quantify completeness and contamination of the sample; kinematics models are used to understand and correct for velocity-dependent selection biases. A luminosity function is constructed covering the range 7<Mbol<16, and its sensitivity to various assumptions and selection limits is discussed. The white dwarf luminosity function based on 6000 stars is remarkably smooth and rises nearly monotonically to Mbol=15.3. It then drops abruptly, although the small number of low-luminosity stars in the sample and their unknown atmospheric composition prevent quantitative conclusions about this decline. Stars are identified that may have high tangential velocities, and a preliminary luminosity function is constructed for them.

Abstract Copyright: ∼

Journal keyword(s): Astrometry - Galaxy: Solar Neighborhood - Stars: Kinematics - Stars: Luminosity Function, Mass Function - Stars: White Dwarfs

Simbad objects: 35

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Number of rows : 35
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 LP 586-51 WD* 01 02 07.2052289536 -00 32 59.563928849   18.31 18.19     DA 32 0
2 SDSS J030325.22-080834.9 WD* 03 03 25.2245582520 -08 08 34.848742704           DA 24 0
3 LSPM J0823+3111 WD* 08 23 59.1710542896 +31 11 54.532659480   17.8   18.7   DA 20 0
4 US 2032 WD* 08 58 31.6185720227 +42 29 22.846931773   18.1   18.4   DA 17 0
5 SDSS J091734.49+020924.4 WD* 09 17 34.4974073880 +02 09 24.380974476           DA 12 0
6 LSPM J0920+0257 WD* 09 20 31.7784618816 +02 57 59.144371128   19.2   18.4   D 9 0
7 SDSS J094722.98+445948.6 WD* 09 47 22.9849338720 +44 59 48.599009196   19.6 19.12 18.7   DC 22 0
8 LSPM J1004+0837 WD* 10 04 44.3397931440 +08 37 47.868527748   17.5   18.5   DA 15 0
9 GALEX J100932.7+524638 WD* 10 09 32.7524797584 +52 46 38.390433456           DA 17 0
10 LP 610-10 WD* 10 25 23.7769107417 +00 43 04.974859210   18.2   17.7   DC 28 0
11 GALEX J103521.3+610703 WD* 10 35 21.3476057736 +61 07 02.899814484           DA 13 0
12 LP 168-8 WD* 10 39 41.8963229064 +46 12 24.540140124   19.5   19.0   DZ 18 0
13 LP 93-21 WD* 10 45 59.4246229382 +59 04 51.314702377   17.5   17.3   DQ8 57 0
14 LSR J1107+4855 WD* 11 07 31.5415830732 +48 55 23.213931354   20.8   18.7   DC 18 0
15 GALEX J112002.7+442829 WD* 11 20 02.8554984504 +44 28 29.618013036   18.5   18.9   DA 13 0
16 GALEX J113125.3+091411 WD* 11 31 25.3074172512 +09 14 11.766015096   19.4   19.5   DA 9 0
17 GALEX J120722.8+091722 WD* 12 07 22.7789155032 +09 17 23.859756672   19.7   19.5   D 5 0
18 GALEX J121731.4+610521 WD* 12 17 31.4483836224 +61 05 21.293989692           DA 14 0
19 LSPM J1240+6710 WD* 12 40 43.4562545952 +67 10 35.934816900   17.6   18.7   DQ 21 0
20 GSC2U J125509.6+465520 WD* 12 55 08.4608599390 +46 55 18.874207770   19.29 18.75     DC 17 0
21 2QZ J125759.0-021314 WD* 12 57 59.0350714248 -02 13 13.369372896           DB 14 0
22 2QZ J130200.9+014620 WD* 13 02 00.8113532544 +01 46 19.537100580   17.9   19.0   DA 10 0
23 LSPM J1345+4001 WD* 13 45 52.1345717640 +40 01 01.708783500   18.5   19.1   DA 20 0
24 LSPM J1403+4533 WD* 14 03 24.7543609728 +45 33 33.020709048   19.37 18.81 18.9   DC 25 0
25 LP 500-28 WD* 14 26 49.8724540658 +09 49 37.455744123   17.9   17.9   D 11 0
26 GALEX J144854.9+051903 WD* 14 48 54.9046046808 +05 19 03.801168156   17.7   18.1   DQ 18 0
27 GALEX J145232.7+105325 WD* 14 52 32.8029309528 +10 53 25.479637476   18.5   19.2   DA 9 0
28 LP 621-58 WD* 15 02 31.66080 +01 10 46.3224   18.2   18.3 17.59 DA+dMe 26 0
29 LP 136-39 WD* 16 01 14.6407440222 +53 46 15.224519356           DA6 20 0
30 GALEX J161426.7+383051 WD* 16 14 26.6897376648 +38 30 52.686500904   18.9   19.9   DA 9 0
31 LSPM J1623+3030 WD* 16 23 01.5713749584 +30 30 41.980479192   18.4   18.4   DA 16 0
32 LP 70-238 WD* 16 54 01.2602291775 +62 53 54.901854552   17.7       DC9 71 1
33 GALEX J221141.7+113603 WD* 22 11 41.7995303472 +11 36 04.647712752   19.4   17.4   DAH 33 0
34 GALEX J225000.3+124020 WD* 22 50 00.2096426160 +12 40 19.888696560           DQ: 10 0
35 GALEX J234110.1+003300 WD* 23 41 10.1323703568 +00 32 59.762730696           DA 15 0

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