2014A&A...570A.107R


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.08CEST04:23:57

2014A&A...570A.107R - Astronomy and Astrophysics, volume 570A, 107-107 (2014/10-1)

White dwarf-main sequence binaries from LAMOST: the DR1 catalogue.

REN J.J., REBASSA-MANSERGAS A., LUO A.L., ZHAO Y.H., XIANG M.S., LIU X.W., ZHAO G., JIN G. and ZHANG Y.

Abstract (from CDS):

White dwarf-main sequence (WDMS) binaries are used to study several different important open problems in modern astrophysics. The Sloan Digital Sky Survey (SDSS) identified the largest catalogue of WDMS binaries currently known. However, this sample is seriously affected by selection effects and the population of systems containing cool white dwarfs and early-type companions is under-represented. Here we search for WDMS binaries within the spectroscopic data release 1 of the Large sky Area Multi-Object fiber Spectroscopic Telescope (LAMOST) survey. LAMOST and SDSS follow different target selection algorithms. Hence, LAMOST WDMS binaries may be drawn from a different parent population and thus help in overcoming the selection effects incorporated by SDSS on the current observed population. We develop a fast and efficient routine based on the wavelet transform to identify LAMOST WDMS binaries containing a DA white dwarf and a M dwarf companion, and apply a decomposition/fitting routine to their LAMOST spectra to estimate their distances and measure their stellar parameters, namely the white dwarf effective temperatures, surface gravities and masses, and the secondary star spectral types. We identify 121 LAMOST WDMS binaries, 80 of which are new discoveries, and estimate the sample to be ∼90% complete. The LAMOST and SDSS WDMS binaries are found to be statistically different. However, this result is not due to the different target selection criteria of both surveys, but likely a simple consequence of the different observing conditions. Thus, the LAMOST population is found at considerably shorter distances (∼50-450pc) and is dominated by systems containing early-type companions and hot white dwarfs. Even though WDMS binaries containing cool white dwarfs are also missed by the LAMOST survey, the LAMOST WDMS binary sample dominated by systems containing early-type companions is an important addition to the current known spectroscopic catalogue. Future LAMOST observations however are required to increase the small number of LAMOST WDMS binaries.

Abstract Copyright:

Journal keyword(s): binaries: spectroscopic - stars: low-mass - white dwarfs - methods: data analysis

VizieR on-line data: <Available at CDS (J/A+A/570/A107): table1.dat table2.dat table3.dat sp/*>

Simbad objects: 124

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Number of rows : 124

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 LAMOST J002237.90+334322.1 WD* 00 22 37.9096090174 +33 43 22.032394279   17.6   15.5   D+M 3 0
2 LAMOST J002952.22+434205.8 WD* 00 29 52.1965807108 +43 42 05.718091028           DA+M 2 0
3 LAMOST J004232.56+415403.0 WD* 00 42 32.5053582564 +41 54 02.972410107           DA+M 6 0
4 SDSS J004432.63+402635.4 WD* 00 44 32.634 +40 26 35.43           D+M3 1 0
5 PTF1 J004546.00+415030.0 ** 00 45 45.89952 +41 50 30.2316   18.9   16.8   DA+M3 8 0
6 SDSS J005221.54+440335.6 ** 00 52 21.546576 +44 03 35.48232   16.78 15.93 15.82   D+M2 2 0
7 SDSS J005601.45+400718.5 WD* 00 56 01.4546568826 +40 07 18.470496940           D+M2 1 0
8 LAMOST J005636.91+383332.6 WD* 00 56 36.9181274624 +38 33 32.875874510           D+M4 1 0
9 SDSS J005853.40+064849.3 WD* 00 58 53.407 +06 48 49.38           DA+M 3 0
10 SDSS J011447.52+254229.7 WD* 01 14 47.5208903775 +25 42 29.779842075           DA+M 9 0
11 2MASS J01414183+3118529 WD* 01 41 41.839 +31 18 52.98           D+M3 2 0
12 US 3270 WD* 02 53 01.6226068724 -01 30 06.550379810   17.4       DA+dM 15 0
13 SDSS J025306.37+001329.3 WD* 02 53 06.3637940031 +00 13 29.501025833           DA+M 10 0
14 2MASS J02530638+0013278 * 02 53 06.3836814764 +00 13 27.882209318           ~ 9 0
15 LAMOST J030944.99+285507.5 WD* 03 09 44.99 +28 55 07.5           DA+M 3 0
16 LAMOST J031648.88+234947.1 WD* 03 16 48.8451399014 +23 49 47.291604684           D+M2 1 0
17 LAMOST J032750.32+222618.9 WD* 03 27 50.3412562653 +22 26 19.065393270           DA+M 3 0
18 SDSS J033225.27+074718.0 WD* 03 32 25.2870048937 +07 47 18.220099278           D+M 1 0
19 LAMOST J034953.33+331656.5 WD* 03 49 53.33 +33 16 56.5           D+M5 1 0
20 SDSS J041642.29+321120.5 WD* 04 16 42.294 +32 11 20.53           D+M3 2 0
21 LAMOST J041653.27+262418.8 WD* 04 16 53.2846894204 +26 24 20.411878971   15.98 15.70 15.82   D+M5 3 0
22 LAMOST J051540.81+354208.6 WD* 05 15 40.81 +35 42 08.6           D+M2 1 0
23 LAMOST J052520.27+285256.2 WD* 05 25 20.2751446802 +28 52 56.340504335           D+M3 1 0
24 G 96-42 WD* 05 29 22.6087959062 +37 54 48.493954573   16.5   14.7   D+M3 8 0
25 LAMOST J053051.47+381059.5 WD* 05 30 51.4787485634 +38 10 59.370146286           DA+M? 2 0
26 LAMOST J054105.04+280640.2 WD* 05 41 05.04 +28 06 40.2           D+M 1 0
27 NLTT 15570 WD* 05 46 54.6435410938 +56 52 00.421079603           D+M 2 0
28 SDSS J060518.84+350702.2 * 06 05 18.8588358421 +35 07 02.279092132       16.00   M2 1 0
29 SDSS J060519.09+350703.8 WD* 06 05 19.1053184006 +35 07 03.923503177   16.5   15.1   DA+M 3 0
30 LAMOST J063330.49+612326.7 WD* 06 33 30.4940697089 +61 23 26.770319006           D+M3 2 0
31 LAMOST J063610.52+285816.7 WD* 06 36 10.4979515205 +28 58 17.005305626           D+M3 1 0
32 LAMOST J063753.51+321752.6 ** 06 37 53.496 +32 17 51.70   17.2   18.3   DA+M6 2 0
33 LAMOST J064156.65+422333.4 WD* 06 41 56.6551027616 +42 23 33.401622716           D+M3 1 0
34 LAMOST J070230.85+264225.3 WD* 07 02 30.8579696803 +26 42 25.627881461           D+M3 1 0
35 SDSS J070323.43+304421.8 WD* 07 03 23.4665359555 +30 44 22.045337750           D+M4 1 0
36 2MASS J07052557+2707422 WD* 07 05 25.5864718614 +27 07 41.937917001           DA1-2 3 0
37 LAMOST J072231.23+295138.1 WD* 07 22 31.23 +29 51 38.1           DA+M 2 0
38 LAMOST J073128.30+264353.6 WD* 07 31 28.3064565688 +26 43 53.527056511           DA+M 4 0
39 SDSS J075239.81+253550.0 WD* 07 52 39.8291050722 +25 35 50.029046638           DA+M 5 0
40 SDSS J075721.07+323054.4 WD* 07 57 21.0956936332 +32 30 54.299078807           DA+dMe 16 0
41 SDSS J075919.41+321948.4 WD* 07 59 19.4218477660 +32 19 48.493637366           DA+M 15 0
42 LAMOST J080532.37+195718.5 WD* 08 05 32.3524435037 +19 57 19.172861240           DA+M 3 0
43 SDSS J080846.59+182558.1 WD* 08 08 46.592 +18 25 58.40           DA+dMe 11 0
44 SBSS 0810+524 WD* 08 14 06.1585531435 +52 17 15.465941849   17.5       DA+dM 11 0
45 SDSS J081654.35+354230.6 WD* 08 16 54.3558181075 +35 42 30.603646087           DA+M 14 0
46 LAMOST J081934.63+024802.7 WD* 08 19 34.5974973565 +02 48 02.640978228           D+M3 2 0
47 SDSS J081959.21+060424.2 WD* 08 19 59.17248 +06 04 23.7756   20.0   18.9   DA+M 15 0
48 SDSS J082022.02+431411.1 WD* 08 20 22.0288084196 +43 14 11.132572123           DA+M 18 0
49 SDSS J083056.11+315941.9 WD* 08 30 56.1205244933 +31 59 41.942559865           DA+dMe 13 0
50 2MASS J08400640+1430256 WD* 08 40 06.409 +14 30 25.68           D+M3 3 0
51 SDSS J091012.24+260009.1 WD* 09 10 12.2549448309 +26 00 09.277402743           D+M3 1 0
52 SDSS J091400.19+300214.0 WD* 09 14 00.2043414871 +30 02 14.204680417           D+M2 1 0
53 SDSS J091508.22+415559.5 WD* 09 15 08.22 +41 55 59.5           DA+dM 11 0
54 SDSS J091943.00+303824.0 WD* 09 19 42.9749002057 +30 38 24.601963016           D+M3 1 0
55 SDSS J092047.94+284523.4 WD* 09 20 47.9216186579 +28 45 22.577788871           D+M4 1 0
56 SDSS J092451.63-001736.5 WD* 09 24 51.6362890885 -00 17 36.449063659           DA5+M: 17 0
57 SDSS J092452.40+002449.0 WD* 09 24 52.4056820012 +00 24 48.992262165           DA+dMe 24 0
58 SDSS J092951.92+121949.9 WD* 09 29 51.9293162905 +12 19 50.024392647           D+M4 1 0
59 SDSS J093011.64+095319.5 WD* 09 30 11.644 +09 53 19.57           DA+M 3 0
60 SDSS J094700.61+181954.6 WD* 09 47 00.619 +18 19 54.61           DA+M 6 0
61 SDSS J094912.72+192753.4 WD* 09 49 12.766608 +19 27 53.74404   15.63 14.89 14.70   D+M3 1 0
62 PG 0950+186 ** 09 52 45.733 +18 21 02.88   15.5   15.0   DA2+dM 19 0
63 SDSS J095824.31-020024.4 WD* 09 58 24.3203383466 -02 00 24.457183799           D+M2 1 0
64 SDSS J101442.26+272348.5 WD* 10 14 42.264 +27 23 48.50           D+M3 1 0
65 SDSS J101500.34+304056.5 WD* 10 15 00.341 +30 40 56.56           DA+M 2 0
66 LAMOST J101616.82+310506.5 WD* 10 16 16.8250256117 +31 05 06.689059711           DA+M 5 0
67 SDSS J101647.21-010907.2 WD* 10 16 47.1557376453 -01 09 07.381350956           DA+dMe 17 0
68 SDSS J101732.00-020527.7 WD* 10 17 32.0016697924 -02 05 27.783238429           DA+M 2 0
69 SDSS J103355.84+373633.6 WD* 10 33 55.8474447964 +37 36 33.561395329           DA+M 2 0
70 PB 384 WD* 10 35 14.79144 +39 07 18.2604   18.1   17.9   DA+dM 13 0
71 GD 123 WD* 10 36 25.2565565090 +46 08 30.669989302   13.70 13.15     DA+M3 56 1
72 SDSS J104012.99+252559.9 WD* 10 40 13.0116886796 +25 25 59.968001620           DA+M 12 0
73 SDSS J104521.58+482822.6 WD* 10 45 21.5908405379 +48 28 22.534344095           D+M3 2 0
74 PG 1049+103 WD* 10 52 27.74736 +10 03 38.1528   15.83 15.81 15.3   DA3+dM 25 0
75 SDSS J105405.21+283917.1 WD* 10 54 05.2432605227 +28 39 16.883913261           DA+M 9 0
76 SBSS 1051+516 WD* 10 54 21.9789519042 +51 22 54.242963794   17.0       DA+dMe 21 0
77 [CCH91] 1057.4+0100 WD* 10 59 59.4682982811 +00 44 07.531948855     18.9     DA+M 3 0
78 SDSS J110827.44+303031.2 WD* 11 08 27.4445012949 +30 30 31.301685480           D+M2 1 0
79 LAMOST J111035.16+280733.2 WD* 11 10 35.1556115914 +28 07 33.284412564           DA+M 3 0
80 US 2386 WD* 11 25 12.3064547194 +29 05 45.328964765   18.8       DA+M 9 0
81 SDSS J112636.77+145829.8 WD* 11 26 36.7677666785 +14 58 29.863326982           DA+M 12 0
82 SDSS J113102.80+522645.0 WD* 11 31 02.8104664613 +52 26 45.165311346           D+M3 2 0
83 SBSS 1144+599 WD* 11 47 32.2413642142 +59 39 21.408678555   17   16.3   DA2:+M 12 0
84 LAMOST J114732.48+591735.1 WD* 11 47 32.4172529012 +59 17 34.200002591           D+M2 2 0
85 LAMOST J115026.28+302359.4 WD* 11 50 26.28 +30 23 59.4           D+M 2 0
86 SDSS J115345.52+282324.5 WD* 11 53 45.5491059874 +28 23 24.590127943           D+M3 1 0
87 SDSS J120537.06+525715.1 WD* 12 05 37.069 +52 57 15.12           D+M2 1 0
88 SDSS J122037.06+492334.2 WD* 12 20 37.0786797586 +49 23 34.211032733           DA+dMe 13 0
89 SDSS J122149.09+285628.2 WD* 12 21 49.0915017259 +28 56 28.169145488           DA+M 8 0
90 LAMOST J122206.80+294321.5 WD* 12 22 06.7973828301 +29 43 21.932226625           D+M3 2 0
91 SDSS J122325.50+281143.5 WD* 12 23 25.4829429560 +28 11 43.404917667           DA+M 9 0
92 SDSS J122514.93+292523.1 WD* 12 25 14.9001418654 +29 25 23.262960073           DA+M 8 0
93 SDSS J123236.96+502309.9 WD* 12 32 36.9644169058 +50 23 09.863007253           D+M2 1 0
94 SDSS J124054.82+434043.4 WD* 12 40 54.8161759722 +43 40 43.519878401           DA+M 14 0
95 SDSS J124544.23+541015.1 WD* 12 45 44.2242108473 +54 10 15.049793600           D+M3 1 0
96 SDSS J124649.67+274000.3 WD* 12 46 49.6902689807 +27 40 01.066831470           D+M4 1 0
97 SDSS J124744.02+273352.9 WD* 12 47 44.0218783187 +27 33 52.728170360           D+M3 1 0
98 SDSS J124919.22+280459.1 WD* 12 49 19.2185108862 +28 04 58.903555857           DA+M4 6 0
99 LBQS 1309+0036 WD* 13 12 08.1174158326 +00 20 57.945283089           DA+M4 10 0
100 PB 135 WD* 13 16 06.9312122376 +46 43 59.401371725   17.5       DA+M 3 0
101 LAMOST J132417.76+280755.8 ** 13 24 17.823192 +28 07 54.93900           DA+M 3 0
102 SDSS J132830.92+125941.4 WD* 13 28 30.9354965902 +12 59 41.394085827           DA+M4 16 0
103 SDSS J132901.28+600204.1 WD* 13 29 01.2885288693 +60 02 04.053405485           D+M 1 0
104 PB 3960 ** 13 31 46.442 +18 32 25.20   17       DA+M 6 0
105 SDSS J133613.06+124613.2 WD* 13 36 13.0811545221 +12 46 13.382393993           DA+M5 12 0
106 SDSS J133722.73+202854.9 WD* 13 37 22.7429270137 +20 28 54.823842073           DA+M 5 0
107 SDSS J134721.80+270724.9 WD* 13 47 21.813 +27 07 25.03   17.4       DA+M1 9 0
108 LAMOST J135635.32+084841.7 WD* 13 56 35.3667425524 +08 48 41.252543151           D+M 2 0
109 LAMOST J140035.94+540103.5 WD* 14 00 35.9876168230 +54 01 03.911858575   17.4   17.1   D+M5 2 0
110 SDSS J141625.48+311605.2 WD* 14 16 25.4954676042 +31 16 05.338527342           D+M3 1 0
111 SDSS J143547.87+373338.5 WD* 14 35 47.8735965953 +37 33 38.699316802           DA+M4.5 35 0
112 SDSS J145512.58+381034.4 ** 14 55 12.613488 +38 10 34.20804   15.93 15.03 14.74   D+M3 1 0
113 CBS 318 WD* 15 24 25.2149569720 +50 40 09.846550314   17       DA+dMe 25 0
114 2MASS J15342174+3915505 PM* 15 34 21.7563966404 +39 15 50.565516128           dM 11 0
115 SDSS J153421.86+391550.0 WD* 15 34 21.8736641244 +39 15 50.306908418           DA+dM 12 0
116 SDSS J154846.00+405728.8 WD* 15 48 46.0064542085 +40 57 28.801045272           DA+M6 29 0
117 LAMOST J162617.40+384029.9 ** 16 26 17.500800 +38 40 29.38224   16.87 16.21 15.42   D+M4 3 0
118 CRTS J164933.2+141255 WD* 16 49 33.2589692434 +14 12 54.863069984     15.24     DA+M 3 0
119 LAMOST J170458.68+543211.5 WD* 17 04 58.68 +54 32 11.5           D+M2 1 0
120 SDSS J214225.08+055510.5 WD* 21 42 25.0724352934 +05 55 10.416207004           D+M3 1 0
121 LAMOST J221102.56-002433.5 WD* 22 11 02.5589836596 -00 24 33.655350242           DA+M 3 0
122 PHL 310 WD* 22 32 57.1412177680 +01 41 14.932281793     18.6     DA+M 4 0
123 SDSS J223348.10+025012.4 WD* 22 33 48.0991094429 +02 50 12.514422955           DA+M 2 0
124 KUV 23176+2650 WD* 23 20 04.0229697130 +27 06 23.732406463   16.4 16.3     DA+M 24 0

    Equat.    Gal    SGal    Ecl

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2020.07.08-04:23:57

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