1999AJ....118..997G

Query : 1999AJ....118..997G

1999AJ....118..997G - Astron. J., 118, 997-1004 (1999/August-0)

A 2MASS survey for brown dwarfs toward the Hyades.

GIZIS J.E., REID I.N. and MONET D.G.

Abstract (from CDS):

We present results of a search for very low mass stars and brown dwarfs toward the central region of the Hyades. Using Two Micron All Sky Survey (2MASS) near-infrared and Second Palomar Sky Survey (POSS II) optical photometry, we select candidates corresponding to spectral types M8-L4 at the distance of the Hyades. Spectroscopic follow-up data indicate that none are cluster members. The lack of members in the mass range 0.08 M☉<M<0.06 M☉ is consistent with evidence that this 600 Myr-old cluster is deficient in very low mass objects. Three of our objects are of spectral type M8, with surface gravity-sensitive features intermediate between dwarfs and giants. We interpret these objects as background brown dwarfs, perhaps associated with the Taurus star formation region.

Abstract Copyright: ∼

Journal keyword(s): open clusters and associations: individual (Hyades) - Stars: Low-Mass, Brown Dwarfs

Simbad objects: 42

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Number of rows : 42
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 V* DY Psc BY* 00 24 24.6317407560 -01 58 19.954412004     19.42 17.301 15.022 M9.5V 210 1
2 LP 944-20 LM* 03 39 35.2523500210 -35 25 43.641996333     18.69 16.39 13.288 M9.5Ve 289 0
3 Cl Melotte 22 OpC 03 46 24.2 +24 06 50           ~ 3435 0
4 Cl* Melotte 22 TEIDE 1 LM* 03 47 17.9147300712 +24 22 31.746313740         19.26 M8.0 105 0
5 Cl* Melotte 22 PLIZ 12 LM* 03 51 25.5680723568 +23 45 21.465842004         19.00 M8.0 65 0
6 2MASS J04165827+1403553 LM* 04 16 58.2605947440 +14 03 55.449636948           M5 1 0
7 Cl* Melotte 25 CFHT 19 LM* 04 17 24.7986704208 +16 34 36.324122988         17.49 M8 9 0
8 2MASS J04174567+2120544 LM* 04 17 45.6861287088 +21 20 54.475420848           M5 1 0
9 2MASS J04193697+1433329 LM* 04 19 36.9785295504 +14 33 32.871313692     21.27     M7.2 10 0
10 2MASS J04193983+1536593 LM* 04 19 39.8483411616 +15 36 59.242510944           sdM? 1 0
11 Cl* Melotte 25 LH 214 LM* 04 19 41.7294179808 +16 45 22.054141044     21.05     M7 10 0
12 2MASS J04194345+1434227 * 04 19 43.4431440096 +14 34 22.596999312           ~ 1 0
13 2MASS J04205016+1345531 LM* 04 20 50.1811355448 +13 45 53.012118564     21.76     M8.5 16 0
14 Cl* Melotte 25 LH 202 LM* 04 21 17.5422779568 +15 30 03.606861744     21.46     M6.5e 11 0
15 LP 415-20 LM* 04 21 49.5764748384 +19 29 08.566062612           M7+M9.5 45 0
16 2MASS J04215218+1519409 LM* 04 21 52.1921436336 +15 19 41.041913844           M6e 2 0
17 Cl* Melotte 25 DKJ 5044b LM* 04 22 30.7557505440 +15 26 31.011132408           M7.4 21 0
18 2MASS J04225880+1329372 LM* 04 22 58.8153446328 +13 29 37.168666188           M6.5e 1 0
19 2MASS J04230340+1340587 LM* 04 23 03.4069078152 +13 40 58.483667244           M7.5 5 0
20 Cl* Melotte 25 DKJ 8644b LM* 04 23 24.2204061672 +15 59 53.751563304           M5e 5 0
21 Cl* Melotte 25 DKJ 8711b LM* 04 23 24.7098663408 +15 41 44.671286904           M7.5 8 0
22 2MASS J04240453+1431298 * 04 24 04.5461608680 +14 31 30.093358476           ~ 2 0
23 2MASS J04265987+1912330 * 04 26 59.87472 +19 12 33.0156           ~ 1 0
24 Cl* Melotte 25 LH 108 LM* 04 27 39.2978049648 +15 07 34.510312920     19.47     M6 6 0
25 2MASSW J0428299+235848 LM* 04 28 30.0122814312 +23 58 48.081543744           M8e 7 0
26 Cl Melotte 25 OpC 04 29 47.3 +16 56 53           ~ 3074 0
27 Cl* Melotte 25 LH 81 LM* 04 30 12.2917222128 +13 01 08.591886516           M6 5 0
28 2MASS J04302325+1514367 LM* 04 30 23.2541800200 +15 14 36.687501888           M5 2 0
29 2MASS J04313222+1526205 LM* 04 31 32.2228587864 +15 26 20.510253960           M4 2 0
30 2MASS J04314202+1622325 LM* 04 31 42.0127482768 +16 22 32.441472048           M 2 0
31 2MASS J04315004+1528143 LM* 04 31 50.0427185448 +15 28 14.328411096           M5 2 0
32 2MASS J04325119+1730092 Y*O 04 32 51.2019430320 +17 30 09.219060936     22.58     M9 30 0
33 2MASS J04344622+1448026 * 04 34 46.2243494160 +14 48 02.454246252           ~ 2 0
34 2MASS J04354898+1537198 LM* 04 35 48.9828572784 +15 37 19.800635844           M6e 6 0
35 2MASS J04362233+1645411 LM* 04 36 22.3432416600 +16 45 41.212686636           M5e 1 0
36 Cl* Melotte 25 BJH 804 PM* 04 38 27.7221368520 +16 00 10.879418412     19.27     ~ 16 0
37 2MASS J04383519+1736343 LM* 04 38 35.19408 +17 36 34.3188           M8e 4 0
38 2MASS J04384437+1553522 LM* 04 38 44.3775574152 +15 53 52.189877760           M6e 1 0
39 2MASS J04435691+1828247 LM* 04 43 56.9073482688 +18 28 24.674899980           M6.5e 1 0
40 2MASS J04445396+1818225 LM* 04 44 53.9710618728 +18 18 22.539338856           M7e 1 0
41 GD 165B BD* 14 24 39.09480 +09 17 10.4352         20.53 L4V 205 0
42 VB 10 Er* 19 16 57.6109547886 +05 09 01.600923413     17.30     M8V 476 1

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