2002AJ....124.1170D


Query : 2002AJ....124.1170D

2002AJ....124.1170D - Astron. J., 124, 1170-1189 (2002/August-0)

Astrometry and photometry for cool dwarfs and brown dwarfs.

DAHN C.C., HARRIS H.C., VRBA F.J., GUETTER H.H., CANZIAN B., HENDEN A.A., LEVINE S.E., LUGINBUHL C.B., MONET A.K.B., MONET D.G., PIER J.R., STONE R.C., WALKER R.L., BURGASSER A.J., GIZIS J.E., KIRKPATRICK J.D., LIEBERT J. and REID I.N.

Abstract (from CDS):

Trigonometric parallax determinations are presented for 28 late-type dwarfs and brown dwarfs, including eight M dwarfs with spectral types between M7 and M9.5, 17 L dwarfs with spectral types between L0 and L8, and three T dwarfs. Broadband photometry at CCD wavelengths (VRIz*) and/or near-IR wavelengths (JHK) is presented for these objects and for 24 additional late-type dwarfs. Supplemented with astrometry and photometry from the literature, including 10 L and two T dwarfs with parallaxes established by association with bright, usually Hipparcos primaries, this material forms the basis for studying various color-color and color-absolute magnitude relations. The I-J color is a good predictor of absolute magnitude for late M and L dwarfs. MJ becomes monotonically fainter with I-J color and with spectral type through late L dwarfs, then brightens for early T dwarfs. The combination of z*JK colors alone can be used to classify late M, early L, and T dwarfs accurately, as well as to predict their absolute magnitudes, but is less effective at untangling the scatter among mid- and late L dwarfs. The mean tangential velocity of these objects is found to be slightly less than that for dM stars in the solar neighborhood, consistent with a sample with a mean age of several Gyr. Using colors to estimate bolometric corrections and models to estimate stellar radii, effective temperatures are derived. The latest L dwarfs are found to have Teff∼1360 K.

Abstract Copyright:

Journal keyword(s): Astrometry - Stars: Color-Magnitude Diagrams - Stars: Distances - Stars: Late-Type - Stars: Low-Mass, Brown Dwarfs

Simbad objects: 85

goto Full paper

goto View the references in ADS

Number of rows : 85
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 L 362-29 B BD* 00 04 34.8671722377 -40 44 06.463544237       19.61 16.88 L5+L5 101 0
2 L 362-29 PM* 00 04 36.4375346731 -40 44 02.880162313   14.47 12.84 12.525   M4V 75 0
3 2MASSW J0015447+351603 BD* 00 15 44.7745521624 +35 16 02.641954548           L1.0V 41 0
4 V* DY Psc BY* 00 24 24.6317407560 -01 58 19.954412004     19.42 17.301 15.022 M9.5V 199 1
5 PC 0025+0447 LM* 00 27 41.9817343344 +05 03 41.691766608           M9.5e 73 0
6 LSPM J0036+1821 BD* 00 36 16.1118891182 +18 21 10.286665966       18.451 16.053 L3.5 201 0
7 CTI 012657.5+280202 LM* 01 27 39.1474134816 +28 05 53.372286456           M8.5V 21 0
8 2MASSW J0149090+295613 LM* 01 49 09.0028348631 +29 56 12.511555579           M9.5V 53 0
9 DENIS J020529.0-115925 BD* 02 05 29.3651195393 -11 59 29.721210536           L7V 146 0
10 HD 16270B BD* 02 35 59.9394221640 -23 31 20.410151736           L1.5 39 0
11 HD 16270 PM* 02 36 00.7758029064 -23 31 16.765791636 10.375 9.406 8.328 7.717 7.208 K3.5Vk: 64 0
12 LP 771-21 LM* 02 48 40.9987420224 -16 51 22.123412928       17.721 15.249 M8V 34 0
13 TVLM 832-10443 LM* 02 52 26.3035729848 +00 56 22.586938584           M8V 28 0
14 LP 412-31 LM* 03 20 59.7114769400 +18 54 22.770750621   20.5 18.881 16.904 14.484 M8V 114 0
15 2MASS J03261367+2950152 BD* 03 26 13.6837078464 +29 50 15.242172504           L3.5V 18 0
16 2MASS J03303511-0025346 BD* 03 30 35.1445125920 -00 25 34.960388420           L2 20 0
17 LP 944-20 LM* 03 39 35.2523500210 -35 25 43.641996333     18.69 16.39 13.288 M9.5Ve 280 0
18 Cl* Melotte 22 KPNO 2 BD* 03 45 43.1616128256 +25 40 23.239779672         17.36 L0V 119 0
19 2MASS J04132039-0114248 BD* 04 13 20.3828490528 -01 14 24.919544328           L0.5V 8 0
20 LP 535-12 Er* 04 26 19.9396822953 +03 36 36.175901824   18.7   17.1   M6.5V 47 0
21 SIPS J0539-0059 BD* 05 39 52.0040375405 -00 59 01.491092352           L5V 79 0
22 2MASS J05591914-1404488 BD* 05 59 19.1872549354 -14 04 49.206913185           T4.5 141 0
23 HD 42581 Er* 06 10 34.6149358167 -21 51 52.656352926 10.801 9.607 8.125 7.164 6.121 M1V 440 0
24 HD 42581B BD* 06 10 34.80 -21 52 00.0           T6.5 486 0
25 LSPM J0746+2000 BD* 07 46 42.50553 +20 00 31.9757       17.9 15.034 L0+L1.5 176 1
26 2MASSI J0825196+211552 BD* 08 25 19.6125672818 +21 15 51.549358145       21.97 19.22 L7.5V 110 0
27 2MASS J08503593+1057156 BD* 08 50 35.93400 +10 57 15.6168       22.466 20.349 L6.5+L8.5 75 0
28 LP 666-9 LM* 08 53 36.1604798120 -03 29 32.197505547     18.959 16.781 14.487 M9Ve 239 0
29 * pi.01 Cnc C BD* 09 12 14.69112 +14 59 39.6240           L8.5+L7.5 53 1
30 * pi.01 Cnc SB* 09 12 17.5474052342 +14 59 45.776204103 7.49 7.24 6.51 5.90 5.52 G9V 215 1
31 TVLM 213-2005 LM* 10 21 27.3787494431 +50 55 04.405166112   20.9   19.8   ~ 12 0
32 HD 89744 PM* 10 22 10.5618854376 +41 13 46.309698444       5.4   F7V 317 1
33 2MASS J10221489+4114266 BD* 10 22 14.8720836024 +41 14 26.514370356           L0.5 39 0
34 SIPS J1058-1548 BD* 10 58 47.8366017792 -15 48 17.250428304       20.095 17.764 L3V 90 2
35 HD 97334B BD* 11 12 25.6353966120 +35 48 12.742807176           L4.5+L6 73 0
36 HD 97334 BY* 11 12 32.3503039560 +35 48 50.688978228   7.02   6.0   G2 271 0
37 LP 732-94 LM* 11 21 49.1708652037 -13 13 08.693807585     19.57     M8.5V 126 0
38 2MASS J11463449+2230527 BD* 11 46 34.5341033040 +22 30 54.036482400           L3+L4 86 0
39 LP 553-59 Er* 11 53 52.6751839477 +06 59 56.254161572   19.61   17.7   M8V 44 0
40 2MASS J12171110-0311131 BD* 12 17 11.10288 -03 11 13.1748           T7.5 81 0
41 BR B1222-1221 LM* 12 24 52.1861111523 -12 38 35.704886187           M8e 48 0
42 SIPS J1228-1547 BD* 12 28 15.23184 -15 47 34.2312       20.187 18.163 L5.5+L5.5 142 0
43 2MASS J12373919+6526148 BD* 12 37 39.19632 +65 26 14.8092           T6.5 69 0
44 2MASS J12545393-0122474 BD* 12 54 53.9040607346 -01 22 47.399401142           T2e: 142 0
45 NAME Kelu-1 BD* 13 05 40.1642434199 -25 41 05.712165150         16.85 L2+L3.5 245 0
46 2MASS J13285503+2114486 BD* 13 28 55.03776 +21 14 48.6024           L5V 25 0
47 2MASS J13464634-0031501 BD* 13 46 46.34496 -00 31 50.1312           T6 72 0
48 LP 499-5 PM* 13 57 01.2586525041 +08 30 06.127204360   18.5 17.70 16.5   ~ 21 0
49 GD 165B BD* 14 24 39.09480 +09 17 10.4352         20.53 L4V 201 0
50 GD 165 WD* 14 24 39.1495824408 +09 17 14.160753960   14.46 14.32 14.6 14.91 DA4.1 157 0
51 LP 271-25 LM* 14 28 43.2275214164 +33 10 39.259309081   21.2   17.8   M9Ve 239 0
52 LP 98-79 Er* 14 30 37.7904858054 +59 43 24.867105409   19.7 17.88 16.8 13.31 M6.5V 67 0
53 2MASS J14392836+1929149 BD* 14 39 28.1499428599 +19 29 15.908790370           L1V 121 0
54 HD 130948 BY* 14 50 15.8109853464 +23 54 42.634220112   6.456 5.867     F9IV-V 267 0
55 NAME HD 130948BC BD* 14 50 16.00 +23 54 41.8           L4+L4 63 0
56 BD+16 2708 Er* 14 54 29.2361840107 +16 06 03.797990080 12.86 11.686 10.150 9.116 7.872 M3V 261 1
57 BD+16 2708B SB* 14 54 29.4185719182 +16 06 08.616294953           M8.5 135 0
58 LP 914-54 Er* 14 56 38.2634715567 -28 09 48.619153485     17.141 14.863 12.433 M7.0Ve 147 0
59 GJ 570 D BD* 14 57 14.96256 -21 21 47.7504           T8 211 1
60 G 136-39 PM* 14 57 20.5473044235 +14 58 54.522189391   16.6   14.3   M3.5 22 0
61 HD 131977 BY* 14 57 28.0007918772 -21 24 55.727265310 7.89 6.83 5.72 4.74 4.19 K4V 466 0
62 TVLM 513-46 LM* 15 01 08.1864639648 +22 50 02.137869060   21.4 15.09 18.0   M8.5V 157 0
63 2MASSW J1507476-162738 BD* 15 07 47.6758255542 -16 27 40.113982846     22.136 18.928 16.579 L5V 183 0
64 TVLM 868-110639 LM* 15 10 16.8245051187 -02 41 08.085982519     20.505 18.035 15.664 M9V 56 0
65 * eta CrB A * 15 23 12.230856 +30 17 17.56212   6.123 5.577     G2V 228 0
66 * eta CrB B * 15 23 12.270456 +30 17 18.45708   6.480 5.95     G2V 136 0
67 * eta CrB C BD* 15 23 22.63488 +30 14 56.2092           L8V 99 1
68 2MASSW J1553214+210907 BD* 15 53 21.42528 +21 09 07.1964           L5.5V 11 0
69 MCC 760 PM* 16 20 24.7810787707 -04 16 02.298205844   12.09 10.708 10.347   K7/M0V 61 0
70 GJ 618.1 B BD* 16 20 26.1629452420 -04 16 31.694082465         18.49 L2.4V 20 0
71 2MASS J16241436+0029158 BD* 16 24 14.36712 +00 29 15.8172           T6V 137 0
72 2MASS J16322911+1904407 BD* 16 32 29.11416 +19 04 40.7136       22.42 19.98 L8V 126 0
73 VB 8 Er* 16 55 35.2557374336 -08 23 40.753073075   18.7 16.916 14.566 12.24 M7Ve 415 0
74 LSPM J1658+7027 BD* 16 58 03.8028228991 +70 27 01.695233449       19.0   L1(e) 34 0
75 G 170-28 PM* 17 14 40.2229725019 +26 55 41.933943276       11.989   M2.0V 25 0
76 2MASSI J1726000+153819 BD* 17 26 00.07752 +15 38 19.0140           L2V 38 0
77 LP 102-320 PM* 17 55 33.4226960149 +58 24 27.503724718   19.0 17.98 16.6 14.02 M5.5V 33 0
78 G 182-34 PM* 18 01 16.1002287008 +35 35 50.495366783   14.90   13.327   M3.5Ve 16 0
79 2MASSW J1841086+311727 BD* 18 41 08.61480 +31 17 27.9600           L4Vpec 19 0
80 LP 229-30 CV* 18 43 22.1259892136 +40 40 21.343851516   19.2   16.6   M7.5Ve 60 0
81 2MASSW J2101154+175658 BD* 21 01 15.44112 +17 56 58.6860           L7+L8 28 0
82 2MASSW J2208136+292121 BD* 22 08 13.63056 +29 21 21.5352           L3gamma 51 0
83 SIPS J2210-1952 PM* 22 10 49.9700195541 -19 52 25.851736422           M8Ve 12 0
84 2MASSW J2224438-015852 BD* 22 24 43.8544128559 -01 58 53.284975671           L4.5V 118 0
85 2MASS J22443167+2043433 BD* 22 44 31.67376 +20 43 43.3020           L6-L8gamma 87 0

To bookmark this query, right click on this link: simbad:objects in 2002AJ....124.1170D and select 'bookmark this link' or equivalent in the popup menu


2022.11.30-18:11:41

© Université de Strasbourg/CNRS

    • Contact