2013AJ....145..169Z

Query : 2013AJ....145..169Z

2013AJ....145..169Z - Astron. J., 145, 169 (2013/June-0)

70 DA white dwarfs identified in LAMOST pilot survey.

ZHAO J.K., LUO A.L., OSWALT T.D. and ZHAO G.

Abstract (from CDS):

We present a spectroscopically identified catalog of 70 DA white dwarfs (WDs) from the LAMOST pilot survey. Thirty-five are found to be new identifications after cross-correlation with the Eisenstein et al. and Villanova catalogs. The effective temperature and gravity of these WDs are estimated by Balmer lines fitting. Most of them are hot WDs. The cooling times and masses of these WDs are estimated by interpolation in theoretical evolution tracks. The peak of the mass distribution is found to be ∼0.6 M☉, which is consistent with prior work in the literature. The distances of these WDs are estimated using the method of synthetic spectral distances. All of these WDs are found to be in the Galactic disk from our analysis of space motions. Our sample supports the expectation that WDs with high mass are concentrated near the plane of the Galactic disk.

Abstract Copyright: ∼

Journal keyword(s): white dwarfs

Nomenclature: Table 1: LAMOST JHHMMSS.ss+DDMMSS.ss N=70.

Simbad objects: 71

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Number of rows : 71
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 LAMOST J003956.55+422929.5 WD* 00 39 56.6682483792 +42 29 29.412749076           DA 15 0
2 GALEX J004036.7+413138 WD* 00 40 36.7776355296 +41 31 38.792724240           DA3 10 0
3 LAMOST J004128.67+402324.09 WD* 00 41 28.6744816632 +40 23 24.040505220           DA 6 0
4 LAMOST J004628.31+343319.90 WD* 00 46 28.2364491216 +34 33 20.558080224           DA3 11 0
5 FBS 0050+358 WD* 00 53 40.5441519336 +36 01 18.170139612     14.54     DA1.8 32 0
6 GALEX J013914.4+290057 WD* 01 39 14.4541997808 +29 00 58.339509624   15.8   16.4   DA3 15 0
7 GALEX J013938.9+291859 WD* 01 39 38.9272068936 +29 18 59.633030124           DA3 5 0
8 GALEX J014147.5+302135 WD* 01 41 47.5641949536 +30 21 35.342719092           DA3 8 0
9 GALEX J014933.7+285611 WD* 01 49 33.7607585784 +28 56 10.698844992           DA2 10 0
10 LAMOST J025737.25+264047.89 WD* 02 57 37.2189021840 +26 40 48.536271948           DA3 11 0
11 GALEX J030214.7+285707 WD* 03 02 14.7148860816 +28 57 07.853536008           DA2 10 0
12 LAMOST J031236.50+515511.74 WD* 03 12 36.5055463512 +51 55 11.814093012           DA 1 0
13 GALEX J033149.6+305945 WD* 03 31 49.6710519816 +30 59 45.224908728           DA2 11 0
14 GALEX J033253.9+284007 WD* 03 32 53.9010558936 +28 40 07.287077136           DAH 8 0
15 CRTS J040449.3+280023 WD* 04 04 49.3467856944 +28 00 23.632403472     15.78     DA 6 0
16 LAMOST J040613.25+465133.66 * 04 06 13.2473470296 +46 51 33.675544008           ~ 3 1
17 GD 66 WD* 05 20 38.3165748936 +30 48 23.922603900   15.78 15.56     DA4.1 81 1
18 SDSS J052147.22+283532.6 WD* 05 21 47.2160761200 +28 35 32.923406508   18.5       DA3 11 0
19 LAMOST J053931.86+285456.66 WD* 05 39 31.8640300512 +28 54 56.626960104           DA 2 0
20 NAME Gal Anticenter reg 05 46 +28.9           ~ 1024 0
21 LAMOST J054613.53+255031.70 WD* 05 46 13.5365253888 +25 50 31.425037404           DA2: 8 0
22 2MASS J05504645+2612207 WD* 05 50 46.4581101120 +26 12 20.669146092           DA2 16 0
23 LAMOST J063406.26+025401.30 WD* 06 34 06.2556869808 +02 54 01.281286260           DA 1 0
24 UCAC4 480-022391 WD* 06 35 17.4760257327 +05 49 17.906287605   14.516 14.056 13.901   DA 7 0
25 LAMOST J064438.16+030704.39 WD* 06 44 38.1579951912 +03 07 04.392482088           DA 1 0
26 2MASS J06445284+2609473 WD* 06 44 52.8318455376 +26 09 47.391559416           DA3: 10 0
27 LAMOST J065601.55+115745.8 WD* 06 56 01.5574290984 +11 57 45.888930036           DAZ? 2 0
28 GALEX J070057.5+284310 WD* 07 00 57.5311267296 +28 43 10.326281052           DA3 10 0
29 Ton 272 WD* 07 07 54.9709532952 +26 51 03.288612348   15.76 15.70 15.93   DA3 15 0
30 GALEX J071223.7+260933 WD* 07 12 23.8482811968 +26 09 33.919065612           DA3 10 0
31 GALEX J074742.0+280945 WD* 07 47 42.0445470504 +28 09 45.730869012           DA3-4 15 0
32 1RXS J075107.4+301719 WD* 07 51 06.5127563544 +30 17 26.482490952   15.2       DA 21 0
33 LAMOST J075251.35+271513.8 WD* 07 52 51.3742249344 +27 15 14.287066020           DA3: 16 0
34 GALEX J081845.2+121952 WD* 08 18 45.2758088832 +12 19 51.530292120           DA2 10 0
35 HS 0838+1643 WD* 08 41 07.7015162376 +16 32 21.950156868           DA4 14 0
36 GALEX J090734.2+273903 WD* 09 07 34.2720167688 +27 39 03.434535864           DA4 15 0
37 LP 313-16 WD* 09 09 18.9904248432 +29 29 29.713577388   15.5 15.80 16.06   DA2.4 24 0
38 PG 0922+183 WD* 09 25 18.3533323176 +18 05 34.160197920   16.43   16.6   DA2.0 30 0
39 GALEX J093047.1+160013 WD* 09 30 47.0775364512 +16 00 12.976771752   17.10 16.80     DA2: 19 0
40 HS 0932+1731 WD* 09 34 51.6705324504 +17 18 13.513025880           DA3 17 0
41 LAMOST J093903.33+114418.6 WD* 09 39 03.3323073072 +11 44 18.041982036           DA4: 9 0
42 Ton 20 WD* 09 41 04.4668994424 +28 22 24.159587592   15.62 15.57     DA3.3 41 0
43 Ton 443 WD* 09 41 26.7926721168 +29 45 03.488466564   15.0       DA2.4 31 0
44 SDSS J094627.81+313210.6 WD* 09 46 27.8225777112 +31 32 10.632726852           DA4 10 0
45 LB 564 WD* 10 03 16.3568389968 -00 23 36.942793152   16.08   16.2   DA2.4 40 0
46 GD 111 WD* 10 05 49.0172711328 +42 48 03.479963760 15.192 16.056 16.155 16.184 16.396 DA2.4 34 0
47 PG 1003-023 WD* 10 05 51.5180688792 -02 34 17.930002332   15.3 15.4 15.4   DA2.4 40 0
48 LAMOST J100941.45-004404.55 WD* 10 09 41.4500948256 -00 44 04.595039844           DA4: 8 0
49 GALEX J101806.5+455830 WD* 10 18 06.5926412880 +45 58 30.412715880           DA 18 0
50 PG 1018+411 WD* 10 21 55.5083789112 +40 50 14.885878524   16.34 16.37 16.46 16.66 DA3 50 0
51 GALEX J102521.3+455553 WD* 10 25 21.3536735832 +45 55 53.865431256           DA2 16 0
52 PB 389 WD* 10 35 35.2277702328 +39 55 02.388950616   16       DAZ? 12 0
53 SBSS 1040+493 WD* 10 43 11.4236321376 +49 02 23.528957028           DA1.0 56 0
54 HS 1043+0258 WD* 10 46 23.2748875056 +02 42 36.608887440   16.2   16.1   DA4 29 0
55 Ton 547 WD* 10 49 28.9008543840 +27 54 22.773689316   15.56 15.41     DA3.8 44 0
56 GALEX J104946.4+003635 WD* 10 49 46.4653986168 +00 36 35.151446844           DA2 22 0
57 Ton 556 WD* 10 54 43.3167693576 +27 06 57.039078204   14.04 14.22 14.60 14.43 DA2.1 64 0
58 GALEX J105811.2+475752 WD* 10 58 11.2747128312 +47 57 52.050260520           DA1-2 15 0
59 GD 307 WD* 11 25 18.8773833960 +54 19 36.207431868   15.5   15.5   DA3.3 53 0
60 PG 1129+072 WD* 11 32 03.4693633704 +06 55 09.163435008   15.37       DA3.6 33 0
61 PB 2947 WD* 11 34 23.3080706784 +31 46 06.778331256   16 14.94     DA3.6 27 0
62 Feige 45 WD* 11 36 14.0146864008 +29 01 30.201825828   14.9 14.87     DA2.1 46 0
63 GD 140 WD* 11 37 05.1041466528 +29 47 58.288741080 11.47 12.42 12.45 12.73 12.714 DA2.2 257 0
64 GALEX J115506.2+264924 WD* 11 55 06.2542151376 +26 49 24.418978356           DA2-3 12 0
65 CBS 54 WD* 12 13 36.4149413616 +31 48 09.161433900   15.8   15.7   DA3.9 23 0
66 GALEX J134922.5-003503 WD* 13 49 22.5781914072 -00 35 03.263286984           DA3 14 0
67 HE 1441-0047 WD* 14 44 33.8073871944 -00 59 58.867977912   15.6 16.2 16.0   DA3 39 0
68 PG 1459+306 WD* 15 01 56.3348622120 +30 22 58.227486132   14.28 14.58     DA1.9 29 0
69 HE 1518-0020 WD* 15 21 30.8323792248 -00 30 55.800779220   15.3 15.2 15.5   DA3 28 0
70 2MASS J19192767+3958392 WD* 19 19 27.6878900856 +39 58 39.465186132           DA3 17 0
71 PB 5065 WD* 22 05 22.8562510080 +02 18 37.408097556   17       DA 8 0

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