2002MNRAS.329..543D

Query : 2002MNRAS.329..543D

2002MNRAS.329..543D - Mon. Not. R. Astron. Soc., 329, 543-555 (2002/January-3)

A deep large-area search for very low-mass members of the Hyades open cluster.

DOBBIE P.D., KENYON F., JAMESON R.F., HODGKIN S.T., HAMBLY N.C. and HAWKINS M.R.S.

Abstract (from CDS):

We present the results of a comprehensive I- and Z-band photometric survey of 10.5deg2 of the Hyades to search for low-mass stellar and substellar members. The survey, which is ≳95 per cent photometrically complete to I_C~20.3, has unearthed a total of 20 candidates, 14 of which are previously uncatalogued. Despite follow-up observations indicating that nine display spectral energy distributions consistent with cluster membership, a detailed astrometric study of all 20 reveals that only one, the previously known stellar member RHy297, displays a proper motion typical of a Hyad. We discuss our failure to detect further low-mass members in terms of the shape of the present-day mass function of the Hyades and find that dynamical evolution has probably led to their preferential evaporation from the cluster.

Abstract Copyright: The Royal Astronomical Society

Journal keyword(s): techniques: photometric - surveys - stars: low-mass, brown dwarfs - open clusters and associations: individual: Hyades - infrared: stars

Nomenclature: Table 2: Cl* Melotte 25 DKJ NNNNNa N=20.

Simbad objects: 22

goto Full paper

goto View the references in ADS

Number of rows : 22
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 Cl* Melotte 25 LH 272 PM* 04 15 05.6800718160 +14 41 35.791700748   19.66 17.66     ~ 7 0
2 Cl* Melotte 25 DKJ 8510a LM* 04 16 00.7983489072 +18 14 24.138465108           M7.8 3 0
3 Cl* Melotte 25 DKJ 4870g * 04 16 21.7000216728 +14 58 01.085437416           ~ 2 0
4 Cl* Melotte 25 DKJ 11108a LM* 04 16 54.4717545792 +18 01 34.589807796           ~ 3 0
5 2MASS J04205016+1345531 LM* 04 20 50.1811355448 +13 45 53.012118564     21.76     M8.5 23 0
6 Cl* Melotte 25 LH 202 LM* 04 21 17.5422779568 +15 30 03.606861744     21.46     M6.5e 11 0
7 Cl* Melotte 25 LH 190 LM* 04 22 14.1288383448 +15 30 52.602195600     17   15.36 M6: 16 0
8 Cl* Melotte 25 DKJ 4239b * 04 22 16.9403303760 +15 29 32.780444280           ~ 1 0
9 Cl* Melotte 25 DKJ 5044b LM* 04 22 30.7557505440 +15 26 31.011132408           M7.4 21 0
10 Cl* Melotte 25 DKJ 7334b PM* 04 23 04.7329556904 +15 18 56.445286068         19.38 ~ 2 0
11 Cl* Melotte 25 DKJ 8644b LM* 04 23 24.2204061672 +15 59 53.751563304           M5e 6 0
12 Cl* Melotte 25 DKJ 8711b LM* 04 23 24.7098663408 +15 41 44.671286904           M7.5 8 0
13 ZTF J042335.47+155226.7 EB* 04 23 35.47 +15 52 26.8   19.16 17.12     ~ 5 0
14 Cl* Melotte 25 LH 148 LM* 04 24 33.8007091680 +15 29 34.475438328           M6 10 0
15 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
16 Cl* Melotte 25 DKJ 1951e * 04 30 28.1604102816 +12 04 59.946675816           ~ 1 0
17 Cl* Melotte 25 DKJ 2916e * 04 30 42.6874526232 +12 32 49.499040084           M3 3 0
18 Cl* Melotte 25 DKJ 4989e * 04 31 11.0 +12 09 30           ~ 1 0
19 LP 475-1012 PM* 04 31 12.6313576200 +12 28 38.359714116   18.40 17.14     ~ 28 0
20 Cl* Melotte 25 DKJ 9546e * 04 32 14.3901761304 +12 18 57.633732936           M7 2 0
21 Cl* Melotte 25 DKJ 692d LM* 04 32 38.0231025936 +15 08 52.580955444           M7 8 0
22 Cl* Melotte 25 DKJ 14784e LM* 04 33 22.8052741440 +12 23 50.595637416           ~ 5 0

To bookmark this query, right click on this link: simbad:objects in 2002MNRAS.329..543D and select 'bookmark this link' or equivalent in the popup menu