1999AJ....117..339H

Query : 1999AJ....117..339H

1999AJ....117..339H - Astron. J., 117, 339-342 (1999/January-0)

Astrometry and photometry for brown dwarf candidates in the Hyades.

HARRIS H.C., VRBA F.J., DAHN C.C., GUETTER H.H., HENDEN A.A., LUGINBUHL C.B., MONET A.K.B., MONET D.G., PIER J.R., STONE R.C. and WALKER R.L.

Abstract (from CDS):

Updated VIJHK photometry is presented for 12 stars from Leggett & Hawkins, along with trigonometric parallaxes and proper motions for three of the stars, that are candidate brown dwarfs in the Hyades. The three stars with parallaxes are found to lie well beyond the Hyades cluster and to fall 3-4 mag above the main sequence, indicating that they are pre-main-sequence objects. These results illustrate the problem that contaminating field stars pose for attempts to identify rare objects such as brown dwarfs as physical members of clusters.

Abstract Copyright: ∼

Journal keyword(s): Astrometry - Stars: Color-Magnitude Diagrams - Galaxy: Open Clusters and Associations: Individual: Name: Hyades - Stars: Low-Mass, Brown Dwarfs

Simbad objects: 13

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Number of rows : 13
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 2MASS J04193697+1433329 LM* 04 19 36.9785295504 +14 33 32.871313692     21.27     M7.2 10 0
2 Cl* Melotte 25 LH 214 LM* 04 19 41.7294179808 +16 45 22.054141044     21.05     M7 11 0
3 2MASS J04205016+1345531 LM* 04 20 50.1811355448 +13 45 53.012118564     21.76     M8.5 23 0
4 Cl* Melotte 25 LH 202 LM* 04 21 17.5422779568 +15 30 03.606861744     21.46     M6.5e 11 0
5 Cl* Melotte 25 DKJ 5044b LM* 04 22 30.7557505440 +15 26 31.011132408           M7.4 21 0
6 2MASS J04230340+1340587 LM* 04 23 03.4069078152 +13 40 58.483667244           M7.5 5 0
7 Cl* Melotte 25 DKJ 8711b LM* 04 23 24.7098663408 +15 41 44.671286904           M7.5 8 0
8 Cl* Melotte 25 LH 994 LM* 04 25 23.1569008944 +17 35 15.055277712     22.45   17.54 M8.5 10 0
9 Cl* Melotte 25 LH 108 LM* 04 27 39.2978049648 +15 07 34.510312920     19.47     M6 8 0
10 Cl* Melotte 25 LH 81 LM* 04 30 12.2917222128 +13 01 08.591886516           M6 8 0
11 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
12 Cl* Melotte 25 DKJ 692d LM* 04 32 38.0231025936 +15 08 52.580955444           M7 8 0
13 2MASS J04325119+1730092 Or* 04 32 51.2019430320 +17 30 09.219060936     22.58     M9 33 0

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