CDS

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

Query : 2014A&A...570A.107R

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 - 2023 		#notes
1 LAMOST J002237.90+334322.1 WD* 00 22 37.9089834600 +33 43 22.032920424   17.6   15.5   D+M 3 0
2 LAMOST J002952.22+434205.8 WD* 00 29 52.1967671136 +43 42 05.717507832           DA+M 3 0
3 2MASS J00423250+4154031 WD* 00 42 32.5051420536 +41 54 02.971145484           DA+M 8 0
4 SDSS J004432.63+402635.4 * 00 44 32.6296295273 +40 26 35.515985638           M3 1 0
5 PTF1 J004546.00+415030.0 ** 00 45 45.909 +41 50 30.07   18.9   16.8   DA+M3 9 0
6 SDSS J005221.54+440335.6 WD* 00 52 21.546576 +44 03 35.48232   16.78 15.93 15.82   D+M2 3 0
7 SDSS J005601.45+400718.5 WD* 00 56 01.4554549128 +40 07 18.457271292           D+M2 2 0
8 LAMOST J005636.91+383332.6 ** 00 56 36.9184289712 +38 33 32.875786764           D+M4 1 0
9 SDSS J005853.40+064849.3 WD* 00 58 53.4070710456 +06 48 49.084544952           DA 6 0
10 SDSS J011447.52+254229.7 WD* 01 14 47.5204949184 +25 42 29.781031536           DA+M 11 0
11 2MASS J01414183+3118529 WD* 01 41 41.839 +31 18 52.98           D+M3 3 0
12 US 3270 WD* 02 53 01.6224060456 -01 30 06.550710552   17.4       DA+dM 16 0
13 SDSS J025306.37+001329.3 WD* 02 53 06.3643989816 +00 13 29.514927288           DA+M 11 0
14 2MASS J02530638+0013278 * 02 53 06.3831470064 +00 13 27.873534324           ~ 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 48.8452475856 +23 49 47.294423796           D+M2 2 0
17 LAMOST J032750.32+222618.9 WD* 03 27 50.3410620984 +22 26 19.063629600           DA+M 3 0
18 LAMOST J033225.27+074718.0 ** 03 32 25.2870472536 +07 47 18.222815220           D+M 1 0
19 LAMOST J034953.33+331656.5 WD* 03 49 53.33 +33 16 56.5           D+M5 2 0
20 SDSS J041642.45+321120.5 WD* 04 16 42.4521832704 +32 11 20.768480304           D 6 0
21 LAMOST J041653.27+262418.8 WD* 04 16 53.2847479948 +26 24 20.413740689   15.98 15.70 15.82   D+M5 5 0
22 2MASS J05154080+3542085 * 05 15 40.8044761752 +35 42 08.629205832           M2 1 0
23 LAMOST J052520.27+285256.2 ** 05 25 20.2757471400 +28 52 56.333093232           D+M3 1 0
24 G 96-42 ** 05 29 22.6086626723 +37 54 48.494356252   16.5   14.7   D+M3 9 0
25 LAMOST J053051.47+381059.5 ** 05 30 51.4790170176 +38 10 59.371445496           DA+M? 2 0
26 LAMOST J054105.04+280640.2 WD* 05 41 05.04 +28 06 40.2           D+M 1 0
27 LP 86-199 ** 05 46 54.6460335168 +56 52 00.462550584           D+M 3 0
28 SDSS J060518.84+350702.2 * 06 05 18.8586562152 +35 07 02.280349380       16.00   M2 1 0
29 SDSS J060519.09+350703.8 WD* 06 05 19.1053326072 +35 07 03.927268992   16.5   15.1   DA+M 6 0
30 LAMOST J063330.49+612326.7 WD* 06 33 30.4942107072 +61 23 26.770235568           D+M3 3 0
31 LAMOST J063610.52+285816.7 ** 06 36 10.4976213216 +28 58 17.003230500           D+M3 1 0
32 LAMOST J063753.51+321752.6 WD* 06 37 53.496 +32 17 51.70   17.2   18.3   DA+M6 3 0
33 LAMOST J064156.62+422333.4 WD* 06 41 56.6556769296 +42 23 33.400756248           D+M3 2 0
34 LAMOST J070230.85+264225.3 WD* 07 02 30.8587308672 +26 42 25.600208292           D+M3 2 0
35 SDSS J070323.43+304421.8 WD* 07 03 23.4663758448 +30 44 22.042079628           D+M4 2 0
36 2MASS J07052557+2707422 WD* 07 05 25.5860935368 +27 07 41.929277736           DA1-2 5 0
37 LAMOST J072231.23+295138.1 WD* 07 22 31.23 +29 51 38.1           DA+M 3 0
38 2MASS J07312832+2643539 WD* 07 31 28.3204730688 +26 43 53.913152496           DA+M 4 0
39 SDSS J075239.81+253550.0 WD* 07 52 39.8289342432 +25 35 50.031172788           DA+M 8 0
40 SDSS J075721.07+323054.4 WD* 07 57 21.0965056344 +32 30 54.296239284           DA+dMe 17 0
41 SDSS J075919.41+321948.4 WD* 07 59 19.4217759960 +32 19 48.491450328           DA+M 16 0
42 SDSS J080532.35+195719.0 WD* 08 05 32.3524404792 +19 57 19.172821680           DA+M 6 0
43 SDSS J080846.59+182558.1 WD* 08 08 46.59840 +18 25 58.1628           DA+dMe 12 0
44 SBSS 0810+524 WD* 08 14 06.1589233320 +52 17 15.468051084   17.5       DA+dM 13 0
45 SDSS J081654.35+354230.6 WD* 08 16 54.3554214072 +35 42 30.603492180           DA+M 14 0
46 2MASS J08193459+0248026 WD* 08 19 34.5982112232 +02 48 02.637888732           D+M3 3 0
47 SDSS J081959.21+060424.2 ** 08 19 59.2094468952 +06 04 24.194494344   20.0   18.9   DA+M 15 0
48 SDSS J082022.02+431411.1 WD* 08 20 22.0284888048 +43 14 11.129171964           DA+M 20 0
49 SDSS J083056.11+315941.9 WD* 08 30 56.1205970856 +31 59 41.936365284           DA+dMe 13 0
50 2MASS J08400640+1430256 WD* 08 40 06.409 +14 30 25.68           D+M3 4 0
51 LAMOST J091012.25+260009.3 ** 09 10 12.2507397384 +26 00 09.283791852           D+M3 1 0
52 LAMOST J091400.20+300214.1 ** 09 14 00.2041570584 +30 02 14.202616848           D+M2 1 0
53 SDSS J091508.22+415559.5 WD* 09 15 08.1130768704 +41 55 58.370550492           DA 11 0
54 LAMOST J091942.96+303824.7 ** 09 19 42.9745744368 +30 38 24.601677576           D+M3 1 0
55 LAMOST J092047.95+284523.8 ** 09 20 47.9542275168 +28 45 23.769049572           D+M4 1 0
56 SDSS J092451.63-001736.5 WD* 09 24 51.6362890885 -00 17 36.449063659           DA5+M: 18 0
57 SDSS J092452.40+002449.0 WD* 09 24 52.4057728488 +00 24 48.996111996           DA+dMe 26 0
58 SDSS J092951.92+121949.9 WD* 09 29 51.9288423768 +12 19 50.020360428           D+M4 2 0
59 2MASS J09301160+0953198 WD* 09 30 11.64432 +09 53 19.5684           DA+M 4 0
60 SDSS J094700.61+181954.6 WD* 09 47 00.6262986648 +18 19 54.913869660           DA 7 0
61 SDSS J094912.72+192753.4 WD* 09 49 12.766608 +19 27 53.74404   15.63 14.89 14.70   D+M3 2 0
62 PG 0950+186 WD* 09 52 45.790104 +18 21 02.71800   15.83 15.42 14.96   DA2+dM 20 0
63 SDSS J095824.31-020024.4 WD* 09 58 24.3202914456 -02 00 24.456735216           D+M2 2 0
64 SDSS J101442.26+272348.5 WD* 10 14 42.2685831768 +27 23 48.585945120           D+M3 1 0
65 UCAC4 604-046745 * 10 15 00.3394521840 +30 40 56.588145780   16.99 16.04 15.81   M2 2 0
66 LAMOST J101616.82+310506.5 WD* 10 16 16.8273374424 +31 05 06.662170968           DA+M 5 0
67 SDSS J101647.21-010907.2 WD* 10 16 47.2117603992 -01 09 07.236115920           DA+dMe 18 0
68 LAMOST J101732.00-020527.7 ** 10 17 32.0016691344 -02 05 27.779570268           DA+M 2 0
69 SDSS J103355.84+373633.6 WD* 10 33 55.8478272480 +37 36 33.577262748           DA+M 3 0
70 PB 384 WD* 10 35 14.7941296368 +39 07 18.182692056   18.1   17.9   DA+dM 14 0
71 GD 123 WD* 10 36 25.2556059000 +46 08 30.695862156   13.70 13.15     DA+M3 58 1
72 SDSS J104012.99+252559.9 WD* 10 40 13.0115021256 +25 25 59.959565364           DA+M 12 0
73 LAMOST J104521.52+482823.3 ** 10 45 21.5908114200 +48 28 22.536659928           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 26 0
75 SDSS J105405.21+283917.1 WD* 10 54 05.2425007056 +28 39 16.891729956           DA+M 10 0
76 SBSS 1051+516 WD* 10 54 21.9789475872 +51 22 54.243493356   17.0       DA+dMe 22 0
77 [CCH91] 1057.4+0100 WD* 10 59 59.4704478504 +00 44 07.548146268     18.9     DA+M 4 0
78 SDSS J110827.44+303031.2 WD* 11 08 27.4444263360 +30 30 31.293554364           D+M2 3 0
79 LAMOST J111035.16+280733.2 WD* 11 10 35.1554601504 +28 07 33.287017512           DA+M 4 0
80 US 2386 WD* 11 25 12.3049162440 +29 05 45.345692328   18.8       DA+M 11 0
81 SDSS J112636.77+145829.8 WD* 11 26 36.7677593736 +14 58 29.863279920           DA+M 13 0
82 SDSS J113102.80+522645.0 WD* 11 31 02.8103825160 +52 26 45.169682388           D+M3 2 0
83 SBSS 1144+599 WD* 11 47 32.2414921632 +59 39 21.408827112   17   16.3   DA2:+M 12 0
84 LAMOST J114732.48+591735.1 WD* 11 47 32.4146661312 +59 17 34.183736088           D+M2 2 0
85 LAMOST J115026.28+302359.4 WD* 11 50 26.28 +30 23 59.4           D+M 2 0
86 LAMOST J115345.55+282324.5 ** 11 53 45.5489592744 +28 23 24.589129128           D+M3 1 0
87 SDSS J120537.14+525715.0 PM* 12 05 37.1508246936 +52 57 15.128632116   16.00 15.01 14.77   M2 2 0
88 SDSS J122037.06+492334.2 WD* 12 20 37.0783537704 +49 23 34.210521924           DA+dMe 13 0
89 SDSS J122149.09+285628.2 WD* 12 21 49.0907577960 +28 56 28.174736904           DA+M 9 0
90 2MASS J12220678+2943218 WD* 12 22 06.7982640288 +29 43 21.930732660           D+M3 3 0
91 SDSS J122325.50+281143.5 WD* 12 23 25.4802036048 +28 11 43.602345852           DA+M 10 0
92 SDSS J122514.93+292523.1 WD* 12 25 14.8909689552 +29 25 23.259977220           DA+M 9 0
93 SDSS J123236.96+502309.9 WD* 12 32 36.9685360536 +50 23 09.916308060           D+M2 2 0
94 SDSS J124054.82+434043.4 WD* 12 40 54.8154899736 +43 40 43.512408048           DA+M 15 0
95 SDSS J124544.23+541015.1 WD* 12 45 44.2435679568 +54 10 15.027867624           D+M3 2 0
96 LAMOST J124649.68+274001.0 ** 12 46 49.6910753304 +27 40 01.064278632           D+M4 1 0
97 SDSS J124744.02+273352.9 WD* 12 47 44.0222867760 +27 33 52.726235616           D+M3 3 0
98 SDSS J124919.22+280459.1 WD* 12 49 19.2241003800 +28 04 58.993480200           DA+M4 7 0
99 LBQS 1309+0036 WD* 13 12 08.1174859536 +00 20 57.945709680           DA+M4 11 0
100 PB 135 WD* 13 16 06.9308944992 +46 43 59.402098776   17.5       DA+M 4 0
101 LAMOST J132417.76+280755.8 WD* 13 24 17.823192 +28 07 54.93900           DA+M 4 0
102 SDSS J132830.92+125941.4 WD* 13 28 30.9352062624 +12 59 41.397824868           DA+M4 18 0
103 LAMOST J132901.26+600204.4 ** 13 29 01.2883381080 +60 02 04.061186160           D+M 1 0
104 PB 3960 WD* 13 31 46.4322961488 +18 32 25.340014896   17       DA 7 0
105 SDSS J133613.06+124613.2 WD* 13 36 13.0809301344 +12 46 13.368557280           DA+M5 13 0
106 SDSS J133722.73+202854.9 WD* 13 37 22.7435663496 +20 28 54.817906224           DA+M 6 0
107 SDSS J134721.80+270724.9 WD* 13 47 21.80448 +27 07 24.9312   17.4       DA+M1 10 0
108 2MASS J13563535+0848415 WD* 13 56 35.3661465600 +08 48 41.263177248           D+M 3 0
109 2MASS J14003598+5401041 WD* 14 00 35.9872226160 +54 01 03.912718440   17.4   17.1   D+M5 3 0
110 SDSS J141625.48+311605.2 WD* 14 16 25.4949933312 +31 16 05.338748388           D+M3 2 0
111 SDSS J143547.87+373338.5 WD* 14 35 47.8735199952 +37 33 38.699663868           DA+M4.5 40 0
112 SDSS J145512.58+381034.4 WD* 14 55 12.613488 +38 10 34.20804   15.93 15.03 14.74   D+M3 3 0
113 CBS 318 WD* 15 24 25.2151600800 +50 40 09.848642160   17       DA+dMe 28 0
114 2MASS J15342174+3915505 PM* 15 34 21.7561207440 +39 15 50.565004632           dM 11 0
115 SDSS J153421.86+391550.0 WD* 15 34 21.8736405888 +39 15 50.310671328           DA+dM 13 0
116 SDSS J154846.00+405728.8 WD* 15 48 46.0071409320 +40 57 28.797200712           DA+M6 31 0
117 LAMOST J162617.40+384029.9 WD* 16 26 17.500800 +38 40 29.38224   16.87 16.21 15.42   D+M4 4 0
118 CRTS J164933.2+141255 WD* 16 49 33.2589226848 +14 12 54.863946828     15.24     DA+M 4 0
119 LAMOST J170458.68+543211.5 WD* 17 04 58.68 +54 32 11.5           D+M2 2 0
120 SDSS J214225.08+055510.5 WD* 21 42 25.0724280528 +05 55 10.417099296           D+M3 2 0
121 2MASS J22110255-0024337 WD* 22 11 02.5592310552 -00 24 33.654240648           DA+M 4 0
122 PHL 310 WD* 22 32 57.1411588248 +01 41 14.938830708     18.6     DA+M 5 0
123 SDSS J223348.10+025012.4 WD* 22 33 48.0991094429 +02 50 12.514422955           DA+M 3 0
124 KUV 23176+2650 WD* 23 20 04.0229573208 +27 06 23.731906248   16.4 16.3     DA+M 26 0

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2023.03.25-06:27:27

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