2007AJ....134...26H

Query : 2007AJ....134...26H

2007AJ....134...26H - Astron. J., 134, 26-42 (2007/July-0)

Cool companions to white dwarf stars from the Two Micron All Sky Survey all sky data release.

HOARD D.W., WACHTER S., STURCH L.K., WIDHALM A.M., WEILER K.P., PRETORIUS M.L., WELLHOUSE J.W. and GIBIANSKY M.

Abstract (from CDS):

We present the culmination of our near-infrared survey of the optically spectroscopically identified white dwarf stars from the McCook and Sion catalog, conducted using photometric data from the Two Micron All Sky Survey final All Sky Data Release. The color selection technique, which identifies candidate binaries containing a white dwarf and a low-mass stellar (or substellar) companion via their distinctive locus in the near-infrared color-color diagram, is demonstrated to be simple to apply and to yield candidates with a high rate of subsequent confirmation. We recover 105 confirmed binaries, and identify 27 firm candidates (19 of which are new to this work) and 21 tentative candidates (17 of which are new to this work) from the 2MASS data. Only a small number of candidates from our survey have likely companion spectral types later than M5, none of which is an obvious L-type (i.e., potential brown dwarf) companion. Only one previously known white dwarf + brown dwarf binary is detected. This result is discussed in the context of the 2MASS detection limits, as well as other recent observational surveys that suggest a very low rate of formation (or survival) for binary stars with extreme mass ratios.

Abstract Copyright: ∼

Journal keyword(s): Stars: Binaries: General - Infrared: Stars - Stars: Low-Mass, Brown Dwarfs - Stars: White Dwarfs

VizieR on-line data: <Available at CDS (J/AJ/134/26): table1.dat>

Simbad objects: 161

goto Full paper

goto View the references in ADS

Number of rows : 161
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 PG 0014+098 WD* 00 16 56.1220494144 +10 03 57.948896916   15.92       DA3.5 11 0
2 PG 0017+061 WD* 00 19 40.8609150360 +06 24 07.620476184           DA1.7 28 0
3 [PS72] 224 WD* 00 21 30.7252292376 -26 26 11.396435532   14.50 13.81 13.75   DA 14 0
4 G 171-B10A WD* 00 26 33.1105885392 +39 09 04.367950524   16.6   15.9   DA4.6 27 0
5 L 170-14 B WD* 00 29 49.7202053113 -54 41 33.007220470   15.96       DA 14 0
6 EGGR 285 ** 00 37 25.001088 -20 53 42.53208   14.94 14.39 14.38   DA3+dM 42 0
7 BD+08 102 CV* 00 44 01.3184370888 +09 32 58.122644748   10.94 10.219   9.176 K2V+DA2.1 47 0
8 Ton 191 WD* 01 06 46.8570652440 -32 53 12.586800228   13.28 13.57     DA1 10 0
9 Ton S 205 ** 01 18 37.185 -22 54 57.83   16.4 15.63 15.8 15.59 DA+M 22 0
10 GD 1088 WD* 01 32 39.347 -19 21 40.38   15.51 15.77 15.77   PG1159 48 0
11 GD 984 ** 01 34 24.0732015168 -16 07 08.095946556   13.6 13.98 14.3   DA1+dM 72 0
12 MCT 0145-7035 WD* 01 46 11.7970560528 -70 20 19.779178776 14.74 15.41 15.50 15.68   DA 10 0
13 GD 1400 WD* 01 47 21.8246176800 -21 56 51.386849088   15.38 15.15 15.42   DA4.1 101 0
14 Ton S 231 WD* 01 48 08.1626954904 -25 32 43.358139924   14.3   14.97   DA1.9 40 0
15 PG 0205+134 XB* 02 08 03.497520 +13 36 24.91632   14.80 15.09 14.64   DA1+dM 39 0
16 MCT 0208-1520 WD* 02 10 42.9315842304 -15 06 33.461243028   15.56       DA2.2 19 0
17 V* FS Cet CV* 02 35 07.5939240480 +03 43 56.816311296 11.027 12.209 12.412 12.325 11.968 DA1+dM 379 0
18 PG 0237+116 WD* 02 40 06.6387356664 +11 48 28.043483364   15.12       DO 20 0
19 GD 425 WD* 02 52 08.0385888552 +60 19 42.820157568 15.59 16.25 16.13     DA3.0 10 0
20 HD 18131 Ro* 02 54 38.8273538856 -05 19 50.946069432   8.32 7.31     K0IV+DA: 76 0
21 PB 6955 ** 02 58 17.9007882144 +01 09 45.875007036   18.29 18.30     DA+dMe 32 0
22 PG 0258+185 HS* 03 01 12.8738055840 +18 40 53.900691240   15.49 15.41 15.75   sdB+G8 18 1
23 PB 7003 WD* 03 06 07.1909714208 -00 31 14.373852924   16.463 16.258     DA2+dM 39 0
24 GD 426 WD* 03 06 16.6927230456 +62 22 22.447534044   15.17 14.95     DA4.5 36 0
25 V* CC Cet CV* 03 10 54.9907539360 +09 49 25.681183680           DA2+dM 56 0
26 MCT 0309-2730 WD* 03 11 33.1898511480 -27 19 25.940530596   16.126 15.747 15.752   DA.9 11 0
27 KUV 03123+0155 WD* 03 14 52.1153590368 +02 06 07.156986192   17.3 16.97     DA1.2 16 0
28 GD 51 ** 03 50 14.6146092192 -13 35 13.616825568 14.72 15.28 14.96     DA3+dM 27 0
29 V* V1092 Tau BY* 03 57 05.8117608072 +28 37 51.611231892   12.61 11.51 10.92   K2V+DA1.5 50 0
30 EGGR 570 ** 03 58 17.1311170320 +46 28 39.741894840   15.868 15.663 15.578   DA+dM 36 0
31 Ton S 392 WD* 03 59 04.9087485000 -23 12 25.602918948 14.40 15.61 15.87     DA.7 17 0
32 G 7-16 WD* 04 00 26.6831052624 +08 14 06.930002800   16.62   15.4   DC9 54 0
33 * omi02 Eri B WD* 04 15 21.7957181469 -07 39 29.203986789 9.147 9.83 9.53     DA2.9 357 0
34 HL Tau 76 WD* 04 18 56.6378191680 +27 17 48.314513652   15.40       DA4.3 154 0
35 V* RR Cae WD* 04 21 05.5631820426 -48 39 07.061113433 14.50 14.92 14.40     DA7.8 168 1
36 HZ 9 ** 04 32 23.7569977200 +17 45 02.672275356   14.28 13.93 14.21   DA3+dM 160 0
37 KUV 04304+1339 ** 04 33 10.5063892152 +13 45 13.223837088   17.1 16.50 16.0   DA1+dM 14 0
38 RX J0458.9-6628 ** 04 58 53.9437236048 -66 28 13.311306372           DA+M2:Ve 11 0
39 G 86-1B WD* 05 21 43.4483694816 +33 21 58.784639328   16.9 16.10 16.7   DA5.5 42 0
40 KUV 06274+2958 HS* 06 30 36.8019930912 +29 56 18.063559032   15.74 15.46 15.64   sdB 10 0
41 G 106-51B WD* 06 30 38.5997399928 -02 05 50.485413624     15.32 15.43   DA7.3 40 0
42 G 106-51 PM* 06 30 38.8042685496 -02 05 53.936865204   15.62 14.69   12.41 M3/4: 18 0
43 V* HR Cam WD* 07 17 09.7856917536 +74 00 40.535184924   14.91 14.97     DA2.6 76 0
44 V* IN CMa CV* 07 20 47.9109655416 -31 47 02.732961552           DAO+dM 93 0
45 EGGR 57 WD* 07 55 08.9542290011 -14 45 50.944618116   13.605 13.588 13.916   DA2.6 42 0
46 L 242-83 CV* 08 02 00.194976 -53 27 50.70600   15.79 15.60 15.75   DA2.3 16 0
47 LP 257-28 WD* 08 05 57.6707602770 +38 33 44.664010601   17.2   16.2   DC9 36 0
48 PG 0805+655 ** 08 09 45.435048 +65 18 17.70912   16.22 16.25     DA1.1 13 0
49 PG 0812+478 WD* 08 15 48.9288562656 +47 40 38.988810768   15.42       DA.8 19 0
50 PG 0824+289 ** 08 27 05.0512752687 +28 44 02.778910836   14.391 14.204 14.454   DA+dC 71 0
51 EGGR 430 ** 08 56 28.2561667488 +62 50 22.634167812     15.7     DA+dM 14 0
52 LP 845-8 WD* 09 00 56.8636946592 -22 13 47.919259488           DC 14 0
53 LP 369-15 ** 09 11 43.0924642320 +22 27 48.867430284     17.5     DA+M3 11 0
54 PG 0915+201 WD* 09 18 33.0616372068 +19 53 07.855433779     16.64     DA.7 25 0
55 KUV 09288+3959 WD* 09 31 55.6658197632 +39 46 07.847071104     17.53     DA+dMe 20 0
56 PG 0933+026 ** 09 35 40.708752 +02 21 59.71608   16.07 15.92 15.18   DA2+dM 24 0
57 LP 668-9 WD* 09 39 49.6991361000 -09 45 56.516755536     18.4     DC 10 0
58 HS 0949+4508 WD* 09 52 21.8543525184 +44 54 30.208681764           DA3.3 19 0
59 PG 0950+186 WD* 09 52 45.790104 +18 21 02.71800   15.83 15.42 14.96   DA2+dM 22 0
60 PG 0956+046 WD* 09 58 37.2619074384 +04 21 30.867190092   15.95   15.6   DA2.7 36 0
61 Ton 1150 ** 10 04 04.3027741368 +20 09 22.634809776   16.07   15.1   DA2+dM 17 0
62 LP 789-24 ** 10 07 07.662936 -18 05 24.99000   15.90 15.65 15.50   DB+dM 8 0
63 HE 1013-0505 WD* 10 16 28.6043334312 -05 20 35.222859276     14.1     DAO.9 108 0
64 EC 10150-1722 WD* 10 17 28.8149694096 -17 37 05.921737176   16.82 16.77     DA1.6 9 0
65 V* UZ Sex ** 10 28 34.8776549016 -00 00 29.394837900   13.89   13.9   DA3+dM 85 0
66 BD-03 2935 PM* 10 29 57.7077936360 -04 12 33.982405164   10.83 10.09 9.68 9.487 GV 12 0
67 LP 670-36 ** 10 29 59.29488 -04 13 01.3512           DQ 9 0
68 GD 123 ** 10 36 25.2556059000 +46 08 30.695862156   13.70 13.15     DA+M3 59 1
69 EGGR 535 WD* 10 38 55.5700182462 -20 40 56.834110426   15.9 16.28 15.54 15.34 DQ10P 98 0
70 PG 1037+512 ** 10 40 16.8106704192 +50 56 46.779407772           DA+M 20 0
71 WG 17 ** 10 44 10.2360886800 -69 18 18.075899052   13.05 13.09     DA2+dM 64 0
72 PG 1049+103 ** 10 52 27.74736 +10 03 38.1528   15.83 15.81 15.3   DA3+dM 31 0
73 LAWD 34 WD* 10 57 35.1341950895 -07 31 23.176779615 14.078 14.626 14.338 14.132 13.921 DC 91 0
74 Ton 1323 WD* 11 04 32.5723321080 +36 10 48.873021996   14.76 14.49     DA3.7 75 0
75 LP 551-67 WD* 11 07 04.7663907720 +04 09 10.825227360           DA2.3 18 0
76 Ton 58 WD* 11 08 43.0270523064 +31 23 56.050916964   16.7       DA+M 21 0
77 WD 1106-211 WD? 11 09 10.9443550704 -21 23 32.140808952   17.9   16.5   ~ 6 0
78 PG 1123+189 CV* 11 26 19.095480 +18 39 16.56900   13.94 14.10 14.31   A0III 68 0
79 PG 1126+186 WD* 11 29 18.0386092752 +18 16 45.645119580   13.37 14.10   13.23 DC+G/K(e) 19 0
80 Ruiz 439-95 WD* 11 35 21.8598526032 -30 10 15.692746188   17.6   16.7   DA6.7 8 1
81 EGGR 388 ** 11 35 42.9356466569 +35 34 23.516611300   16.9   15.0   DC+M4.5Ve 36 0
82 HS 1136+6646 WD* 11 39 05.7718884456 +66 30 17.776235160           DAO.6 42 0
83 PG 1141+505 ** 11 43 49.9567905192 +50 10 20.277470100     16.57     DA+dMe 31 0
84 CBS 148 ** 11 50 31.2541260672 +36 54 15.994694088   18       DB+M 9 0
85 WD 1156+129 WD? 11 59 15.6352282951 +12 39 29.223293691           ~ 7 0
86 PG 1201+437 QSO 12 04 24.0365051808 +43 30 56.917776852   16.55 16.42     ~ 45 1
87 PG 1210+464 ** 12 12 59.639448 +46 09 46.68516   15.65 14.89 14.72   DA2.4 24 0
88 V* EG UMa CV* 12 15 44.0979312096 +52 31 01.289011692   13.0 13.230 13.149   DA+dM 119 1
89 EGGR 88 WD* 12 16 51.8642620184 +02 58 02.340547398           DA 37 1
90 PG 1218+497 ** 12 21 05.3559978624 +49 27 20.459595060   16.12 16.24     DA+dMe 37 0
91 Ton 617 WD* 12 26 30.8730979008 +30 38 52.652529600   16.099 16.05     DA+M3 68 0
92 LP 321-138 WD* 12 48 47.2223625744 +29 42 50.649649308   17       DA 8 0
93 HE 1247-1738 ** 12 50 22.0733116080 -17 54 46.559601540   16.32 16.19 15.7   DA3+dM 21 0
94 PN LoTr 5 PN 12 55 33.7471108416 +25 53 30.559286040   9.72 8.88     G5III-IV 223 0
95 EC 12540-1318 WD* 12 56 39.5411234928 -13 34 42.008470356   15.98 16.04     DA2.1 9 0
96 PG 1305+018 WD* 13 07 54.5203976832 +01 32 10.512501144           DA1.7 22 0
97 EC 13077-1411 WD* 13 10 22.5165533568 -14 27 07.919821980   16.49 16.44     DA1.9 11 0
98 EC 13109-3035 WD* 13 13 41.5798021560 -30 51 33.708703536   14.43 14.92 14.5   DA2.4 32 0
99 HZ 43A WD* 13 16 21.8532409720 +29 05 55.411186877   12.52 12.66     DAwk 477 0
100 EC 13198-2849 ** 13 22 40.4571782688 -29 05 34.749956616   16.48 15.99 15.6   DA5+dM 12 0
101 LP 21-152 WD* 13 30 32.9204189304 +79 05 12.565201704     17.0     DA 6 0
102 GD 325 WD* 13 36 01.8224904648 +48 28 46.249072104   13.91 13.98 14.42   DB4 76 0
103 SBSS 1339+606 WD* 13 41 00.0296377920 +60 26 10.424734620   17.0       DA+dM3e 30 0
104 PG 1401+006 WD* 14 03 45.3098112000 +00 21 35.921448540   17.03       DA.8 11 0
105 PG 1412-049 ** 14 15 02.2142183040 -05 11 03.935077116   16.52 16.00 14.50   DA+dM 9 0
106 PG 1412-109 WD* 14 15 07.6994759208 -11 09 24.079694256   15.27   15.84   DA1.9 23 0
107 Feige 93 XB* 14 17 40.2189155424 +13 01 48.585467568   15.08 15.29     DA1+dM 57 0
108 SBSS 1424+503 WD* 14 26 44.2072550472 +50 06 25.167764052           DA1.6 30 0
109 GD 337 WD* 14 34 43.2932850600 +53 35 21.186386556   16.06 16.09     DA3+K 66 0
110 CBS 194 WD* 14 37 36.7330765536 +36 51 36.701940924   16       DA3.2 10 0
111 HE 1436-2137 ** 14 39 12.6508293288 -21 50 13.887911004   16.3 15.94 15.5   DA2+dM 14 0
112 PG 1443+337 WD* 14 46 00.725448 +33 28 50.08404   16.50 16.36     DA+M 30 0
113 PG 1458+172 ** 15 00 19.3370621352 +16 59 14.493026580   16.200 16.262 16.212   DA5+dM 25 0
114 WD 1501+300 * 15 03 20.7527720592 +29 52 58.478436228   16.05 15.53 15.43   dF 5 0
115 CBS 223 WD* 15 04 31.8490478904 +34 47 00.260586960           DA2.3 22 0
116 SBSS 1504+546 ** 15 06 05.4315749880 +54 28 18.567976800   16.575 16.369     DA+dMe 18 0
117 SBSS 1517+502 ** 15 19 05.9757917760 +50 07 02.861348808           DA+dCe 48 0
118 CBS 318 WD* 15 24 25.2151600800 +50 40 09.848642160   17       DA+dMe 31 0
119 LAWD 59 WD* 15 45 10.9360242504 -38 18 51.617130048   16.5 14.6 14.3   DA2.7 14 1
120 HS 1558+6140 ** 15 58 55.53768 +61 32 03.7320           DA2.6 9 0
121 KUV 16032+1234 WD* 16 05 32.1129207192 +12 25 42.833064972     15.91     DAH? 6 0
122 PG 1608+119 WD* 16 10 53.3809573104 +11 43 52.705441848   15.10 14.73 15.46   DA3 25 0
123 KUV 16106+3820 WD* 16 12 21.4777477848 +38 12 29.851959636   16.5 16.4     DA3.3 12 0
124 PG 1619+525 WD* 16 20 24.4910846640 +52 23 21.083129052       15.54   DA2.7 27 1
125 KUV 16195+4125 ** 16 21 12.6224829048 +41 18 09.811120608   17.1 16.8 16.8   DA+M 14 0
126 PG 1622+324 ** 16 24 48.9996654168 +32 17 02.099567976   16.26 16.32 16.49   DA+dM 28 0
127 RX J1629.0+7804 WD* 16 29 10.278576 +78 04 39.91620   12.74 12.95 13.03   DA1.2 86 0
128 LP 862-149 ** 16 35 33.2801135352 -22 50 32.924864004   21.6 19.1 19.0   DC:+DC: 4 0
129 HD 149499B WD* 16 38 31.199462 -57 28 10.70103   11.15 11.28     DOZ1 108 0
130 PG 1643+144 ** 16 45 39.1425070560 +14 17 46.187807892   15.82 15.36     DA2+dM 25 0
131 PG 1646+062 WD* 16 49 07.7827765680 +06 08 45.609542844   15.84   15.9   DA1.7 14 0
132 PG 1654+160 WD* 16 56 57.4672879608 +15 56 27.791267532           DB2 55 0
133 RX J1711.4+6645 WD* 17 11 27.1388339952 +66 45 30.538787868     17.1     DA.9 32 0
134 [RWW88] SC 171751.1-343026 WD* 17 21 10.3222534608 -34 33 28.666355652   17.29 16.38     DA2.0 14 0
135 GD 362 WD* 17 31 34.3168718112 +37 05 20.711767812   16.3   16.4   DAZB 200 0
136 RX J1820.5+5805 WD* 18 20 29.7868783008 +58 04 40.963525860   13.8 14.23     DA1.0 41 0
137 KUV 18332+6429 ** 18 33 29.1992873040 +64 31 51.955973832   17.0 16.9     DA+M2 18 0
138 Lan 18 WD* 18 47 39.0288030792 +01 57 35.449794216 11.68 12.73 12.94 13.1 12.3 DA1.7 81 0
139 BPS CS 22959-0081 WD* 18 49 02.0437975992 -65 25 14.476021788   15.7 15.2 14.7   DA 7 0
140 WD 1950+279 WD* 19 52 28.3739767656 +28 07 52.794918336   17.4 17.9 16.2   DA 3 0
141 GD 543 WD* 20 10 42.8802762840 +62 25 32.149712964   15   15.7   DA1.9 39 1
142 RX J2013.1+4002 ** 20 13 09.3685663800 +40 02 24.241439184     14.6     DAO+M2/3e 94 1
143 RX J2024.2+2000 ** 20 24 16.09224 +20 00 47.4696   16.4 16.4 16.4   DA1.0 17 0
144 MCT 2101-3627 WD* 21 04 46.9310326704 -36 15 25.268172228   16.68 16.79 16.3   DA+dM: 6 0
145 MCT 2108-4310 WD* 21 11 37.4096408520 -42 58 11.626554000 15.35 16.07 15.77     DA+dM 6 0
146 GALEX J212146.6-331049 WD* 21 21 46.7397442272 -33 10 49.568510568           DA 11 0
147 BPS CS 29501-0114 * 21 21 46.8788366832 -33 10 47.751739356     14.27 15.70   ~ 6 0
148 V* IR Peg WD* 21 34 08.2124719240 +06 50 57.662044329   16.15       PG1159 122 0
149 LP 187-7 WD* 21 35 17.9456262505 +46 33 18.207314753   18.1 17.97 17.9   DA 20 0
150 EGGR 151 WD* 21 54 06.4513977984 -01 17 09.525582096   14.728 14.515 14.373 13.990 DA5.5 61 0
151 KPD 2154+4048 WD* 21 56 18.2473853208 +41 02 45.289605120 14.32 15.29 15.23 15.38   DA1.7 20 0
152 HS 2237+8154 WD* 22 37 15.5608684464 +82 10 27.358012308           DA2.8 23 0
153 GD 245 CV* 22 58 48.1351624092 +25 15 43.908615894   13.699 13.650 13.833   DA2.2 74 0
154 G 157-34 WD* 23 14 25.1848641615 -06 32 47.884151896 14.90 15.55 15.42     DC 52 0
155 KUV 23176+2650 ** 23 20 04.0229573208 +27 06 23.731906248   16.4 16.3     DA+M 28 0
156 LP 762-53 EB* 23 21 08.2690789464 -13 27 46.604588508     15.34     ~ 6 0
157 LP 762-54 WD* 23 21 14.4257442528 -13 27 38.587679028   19.23 19.3 18.42 18.01 DC 16 0
158 EC 23216-5458 WD* 23 24 30.8622650808 -54 41 35.509543332   14.91 15.13 15.72   DA1.1 58 0
159 PHL 535 WD* 23 28 38.7227199648 -22 10 19.308565416   16.6 16.8     DA2.6 14 0
160 V* ZZ Psc WD* 23 28 47.6365087803 +05 14 54.235051503   13.217   13.106   DA4.1 536 0
161 EGGR 557 WD* 23 38 52.8015878376 -18 26 12.677321220   15.6   15.2   DA6.4 29 0

To bookmark this query, right click on this link: simbad:objects in 2007AJ....134...26H and select 'bookmark this link' or equivalent in the popup menu