1999MNRAS.310...87H

Query : 1999MNRAS.310...87H

1999MNRAS.310...87H - Mon. Not. R. Astron. Soc., 310, 87-96 (1999/November-3)

Infrared photometry of low-mass stars in Praesepe.

HODGKIN S.T., PINFIELD D.J., JAMESON R.F., STEELE I.A., COSSBURN M.R. and HAMBLY N.C.

Abstract (from CDS):

We present follow-up infrared photometry for a sample of low-mass and very low-mass stars in the Praesepe open cluster. Our sample is selected from two sources: (i) 90 stars selected from the Hambly et al. photometric and proper-motion survey of Praesepe; (ii) 17 stars selected from the CCD imaging survey presented by Pinfield et al. We investigate cluster membership using infrared colour-magnitude and colour-colour diagrams. We find 81 likely and two possible members in the Hambly et al. sample, in line with predictions. Contamination in the Pinfield et al. sample is higher, and we find nine probable cluster members. We investigate the non-grey models of Baraffe et al., which are found to be in good agreement with the data. Multiplicity in Praesepe is also examined, and we find the multiple star fraction to be 0.51 from analysis of the I, I-K diagram. We investigate individual object masses, and find that the faintest candidate cluster members have masses close to the substellar limit.

Abstract Copyright: 1999, Royal Astronomical Society

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

Simbad objects: 111

goto Full paper

goto View the references in ADS

Number of rows : 111
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 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
2 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
3 Cl* NGC 2632 JC 16 * 08 33 02.8938497499 +18 40 57.496563098   14.54 13.60     K4.5 39 0
4 Cl* NGC 2632 JS 23 * 08 33 07.4603127052 +20 07 48.250259374   15.34 13.86     K7.0 36 0
5 Cl* NGC 2632 HSHJ 34 Er* 08 33 10.9736444496 +19 29 22.147072116           M3.9 29 0
6 Cl* NGC 2632 JC 18 Ro* 08 33 17.6194025602 +19 25 50.488048738   15.078 13.827     K5.7 43 0
7 Cl* NGC 2632 HSHJ 42 * 08 33 31.1061243120 +19 30 59.571232740           ~ 4 0
8 Cl* NGC 2632 JS 79 Ro* 08 35 08.056104 +19 59 25.16532   14.565 13.332 12.911   K5.6 15 0
9 Cl* NGC 2632 JC 50 Ro* 08 35 45.1591241664 +19 38 26.117340468   13.955 12.925     K3.0 38 0
10 Cl* NGC 2632 JC 51 * 08 35 46.7749894752 +19 52 15.329925912   16.00 14.45     K7.4 34 0
11 Cl* NGC 2632 JC 54 Ro* 08 35 59.8706597664 +19 31 31.924963380   14.368 13.229     K3.6 45 0
12 Cl* NGC 2632 HSHJ 95 LM* 08 36 01.6111444440 +19 57 31.383544248           M6V 30 0
13 Cl* NGC 2632 JC 55 * 08 36 04.4296168783 +19 55 13.024117212   16.29 14.61     K7.5 45 0
14 Cl* NGC 2632 HSHJ 98 * 08 36 05.8760835096 +22 26 15.686467404           ~ 3 0
15 Cl* NGC 2632 HSHJ 106 * 08 36 10.8287629584 +19 41 41.316119520           M4.1 19 0
16 Cl* NGC 2632 JS 119 * 08 36 15.9001655127 +20 07 12.879550117   17.84 15.72     M0.9 38 0
17 Cl* NGC 2632 JC 59 Ro* 08 36 16.393080 +19 32 31.29900   12.458 11.573 11.373   G9.7 33 0
18 Cl* NGC 2632 JS 123 LM* 08 36 19.1544915816 +19 53 54.840360840   20.17 17.56     M3.0 38 0
19 Cl* NGC 2632 JC 61 Ro* 08 36 22.6882976136 +19 11 29.341769028   13.351 12.418     K2V 49 0
20 Cl* NGC 2632 JC 63 * 08 36 27.1246123105 +19 51 54.666346840   17.39 15.37     M1.4 35 0
21 Cl* NGC 2632 JC 68 Ro* 08 36 36.4184380199 +19 11 06.756523820   16.180 14.719     K7V 46 0
22 Cl* NGC 2632 JC 71 Ro* 08 36 47.1083805384 +18 34 46.898355360   13.689 12.769     K0.8 43 0
23 Cl* NGC 2632 JC 75 ** 08 36 49.5667811256 +19 33 22.598382780   15.403 14.013     K6V 18 0
24 Cl* NGC 2632 JC 76 * 08 36 51.6337763832 +19 04 35.045492988   15.52 14.01     K6V 41 0
25 Cl* NGC 2632 JC 78 Ro* 08 36 53.7430810202 +18 29 45.068688735   15.218 13.985     K5.6 32 0
26 Cl* NGC 2632 PHJ 1 LM* 08 36 54.618 +19 54 15.80           ~ 7 0
27 Cl* NGC 2632 JC 80 Er* 08 36 56.2534809322 +18 57 47.972108331   16.97 14.97     M0.9 31 0
28 Cl* NGC 2632 JC 81 ** 08 36 56.797200 +19 05 28.06116   16.11 14.66 14.10   K7.9 21 0
29 Cl* NGC 2632 PHJ 2 LM* 08 37 02.1534244608 +19 52 07.378753296         17.15 M7V 15 0
30 Cl* NGC 2632 JC 85 * 08 37 03.4589845145 +19 10 41.176813013   14.77 13.64     K5.3 36 0
31 Cl* NGC 2632 JC 87 * 08 37 03.7468500479 +18 40 02.493449187   15.45 13.99     K7.4 46 0
32 Cl* NGC 2632 JC 91 * 08 37 16.3616995152 +19 29 10.388664816   15.59 14.07     K6V 27 0
33 Cl* NGC 2632 S 13 Ro* 08 37 18.2937089595 +19 41 56.401130140   12.181 11.424     G5V 55 0
34 Cl* NGC 2632 JC 96 Ro* 08 37 26.3890851044 +19 29 12.830759014   15.111 13.831     K5V 52 0
35 Cl* NGC 2632 JC 97 * 08 37 26.3930648488 +19 07 55.683699349   16.42 14.72     K7V 45 0
36 Cl* NGC 2632 S 16 Ro* 08 37 27.5524241141 +19 37 03.262350678   12.416 11.616     G8V 62 0
37 Cl* NGC 2632 JC 102 * 08 37 31.0465610666 +19 06 14.246979723   15.53 13.99     K6V 39 0
38 Cl* NGC 2632 JC 109 Ro* 08 37 38.2237612186 +18 28 56.921688552   14.147 13.082     K2.1 34 0
39 Cl* NGC 2632 JC 112 Ro* 08 37 46.4122408968 +19 35 57.469211340   13.252 12.305     K1V 62 0
40 Cl* NGC 2632 JC 114 Ro* 08 37 47.3915193288 +19 06 24.749104608   13.172 12.273     G8.6 54 0
41 Cl* NGC 2632 HSHJ 181 LM* 08 37 49.3202356992 +19 57 46.414705500           M6V 29 0
42 Cl* NGC 2632 JS 206 * 08 37 54.5687241465 +20 08 12.300821550   17.96 15.91     M1.3 40 0
43 Cl* NGC 2632 JC 118 Er* 08 37 57.0347637421 +19 14 10.371671238   12.632 11.829     G8V 65 0
44 Cl* NGC 2632 JS 703 Er* 08 38 01.1410314768 +19 58 43.011432660   21.28 18.39     M4.0 37 0
45 Cl* NGC 2632 PHJ 4 PM* 08 38 11.8393738944 +19 59 43.870369596         17.89 ~ 3 0
46 Cl* NGC 2632 HSHJ 200 * 08 38 14.5162091064 +19 52 34.959418608           ~ 15 0
47 Cl* NGC 2632 JS 221 * 08 38 16.0079165808 +21 23 30.115219740   14.25 13.34     ~ 5 0
48 Cl* NGC 2632 JC 123 * 08 38 21.6618570504 +18 36 39.947916636   14.64 13.28     K7.1 15 0
49 Cl* NGC 2632 JC 124 Er* 08 38 27.7346508431 +19 45 55.671085105   17.94 15.87     M1.6 38 0
50 K2-104 LM* 08 38 32.8359046503 +19 46 25.591543965   18.46 16.26     M1V 72 0
51 Cl* NGC 2632 PHJ 6 * 08 38 33.23 +19 49 13.2           ~ 2 0
52 Cl* NGC 2632 HSHJ 208 * 08 38 36.1487119359 +22 32 27.279109119   13.832 13.204 13.205   ~ 5 0
53 Cl* NGC 2632 JC 131 Ro* 08 38 37.2307246836 +19 01 16.062034909   15.001 13.775     K5V 38 0
54 Cl* NGC 2632 HSHJ 215 * 08 38 39.2911120176 +19 41 40.044500520         15.89 M4.5 16 0
55 Cl* NGC 2632 JC 132 * 08 38 41.4598069081 +19 25 18.272023522   16.29 14.61     K7V 49 0
56 Cl* NGC 2632 HSHJ 218 Er* 08 38 41.5944788928 +19 34 18.078638628           M4.2 32 0
57 Cl* NGC 2632 HSHJ 216 * 08 38 44.2393690080 +22 28 40.902124908   12.8       ~ 11 0
58 Cl* NGC 2632 JS 250 Er* 08 38 51.0320308416 +19 51 01.979837064   20.11 17.44     M3.0 34 0
59 Cl* NGC 2632 HSHJ 231 * 08 38 51.9887325168 +18 07 45.076514772           ~ 4 0
60 Cl* NGC 2632 JC 137 * 08 38 53.5380951726 +19 34 16.965928938   15.49 14.07     K6V 55 0
61 Cl* NGC 2632 HSHJ 233 * 08 38 54.2003425320 +19 51 44.516518236         16.49 M4.3 27 0
62 Cl* NGC 2632 JS 259 Er* 08 38 57.2252010699 +20 10 53.569177993   15.184 13.924     K6V 52 0
63 Cl* NGC 2632 JC 140 Ro* 08 38 58.3297789176 +19 36 49.614338268   14.899 13.771     K3.9 22 0
64 Cl* NGC 2632 JC 141 Ro* 08 39 02.2797122304 +19 19 34.473700344   13.306 12.366     K1V 57 0
65 Cl* NGC 2632 JC 143 Er* 08 39 02.9127193992 +19 31 57.119869776   18.40 16.80     M3.3 25 0
66 V* EO Cnc Er* 08 39 03.2137104519 +20 02 37.572987843   15.78 14.41     K7.5 47 0
67 Cl* NGC 2632 JC 144 Ro* 08 39 04.1128930999 +19 31 21.681253411   14.995 13.772     K5V 55 0
68 Cl* NGC 2632 HSHJ 254 PM* 08 39 15.6287164152 +20 05 35.238979752           ~ 6 0
69 Cl* NGC 2632 HSHJ 258 Er* 08 39 18.5004190200 +19 22 44.280971364           M4.7 34 0
70 Cl* NGC 2632 PHJ 7 * 08 39 20.11 +19 42 41.0           ~ 2 0
71 Cl* NGC 2632 PHJ 8 LM* 08 39 20.4397455168 +20 01 37.057118916           M7V 8 0
72 Cl* NGC 2632 JS 298 Er* 08 39 31.7519044200 +19 24 17.570423484   20.31 17.71     M2.8 41 0
73 Cl* NGC 2632 PHJ 10 * 08 39 32.59 +20 00 54.3           ~ 2 0
74 Cl* NGC 2632 JS 309 Er* 08 39 41.0325214345 +19 59 28.833719945   17.053 15.339     M0V 44 0
75 Cl* NGC 2632 HSHJ 283 LM* 08 39 41.6622529464 +19 29 00.623822784           M6V 20 0
76 2MASS J08394781+1928033 BD? 08 39 47.7978721725 +19 28 02.922583667         18.81 ~ 6 0
77 Cl* NGC 2632 PHJ 12 * 08 39 48.88 +19 26 07.2           ~ 2 0
78 NGC 2632 OpC 08 39 58.4 +19 36 33           ~ 1733 0
79 Cl* NGC 2632 HSHJ 300 Er* 08 40 11.4558052608 +20 04 03.280220832           M3.4 19 0
80 Cl* NGC 2632 JS 719 Er* 08 40 15.2012398728 +20 05 13.962182892   21.50 18.29     M4.1 37 0
81 Cl* NGC 2632 PHJ 13 * 08 40 27.61 +19 28 48.8           ~ 2 0
82 Cl* NGC 2632 JS 365 Er* 08 40 30.5852900904 +19 55 58.791763488   19.78 17.22     M3V 40 0
83 Cl* NGC 2632 JC 212 * 08 40 31.5051444174 +19 41 43.051985858   16.56 15.11     ~ 29 0
84 Cl* NGC 2632 JC 215 Ro* 08 40 33.4642580616 +19 38 00.935332332   13.094 12.198     K0.8 66 0
85 V* BB Cnc Er* 08 40 41.6582581200 +19 30 00.797467572           M4.8 21 0
86 Cl* NGC 2632 PHJ 14 * 08 40 46.17 +20 03 24.9           ~ 3 0
87 Cl* NGC 2632 JS 390 Er* 08 40 51.8673180168 +19 56 30.234342084   19.55 17.10     M3V 39 0
88 Cl* NGC 2632 RP r1 * 08 40 54.6 +19 15 05         21.01 ~ 8 0
89 Cl* NGC 2632 JC 230 Ro* 08 40 56.6914326867 +19 44 05.184258675   13.095 12.198     K0.5 56 0
90 Cl* NGC 2632 HSHJ 340 * 08 40 56.7751885968 +19 46 11.609623704           ~ 8 0
91 Cl* NGC 2632 PHJ 18 LM* 08 41 08.5106184744 +19 54 01.764761112         19.63 M9 11 0
92 Cl* NGC 2632 JC 243 ** 08 41 13.186032 +19 32 34.91412   15.670 14.189 13.795   M0.6 31 0
93 Cl* NGC 2632 JS 430 Er* 08 41 24.4592999310 +20 07 49.500023064   18.87 16.46     M2.5 39 0
94 Cl* NGC 2632 PHJ 20 LM* 08 41 24.8595009816 +19 57 27.005099400         18.48 M7V 14 0
95 Cl* NGC 2632 HSHJ 376 Er* 08 41 32.5147745808 +20 06 06.774492708           M3.6 29 0
96 Cl* NGC 2632 JC 260 * 08 41 37.4079597490 +19 31 13.930049854   14.84 13.60     K5V 50 0
97 Cl* NGC 2632 S 179 * 08 41 47.7693256128 +19 24 43.902160812   11.95 11.42     K0.3 33 0
98 Cl* NGC 2632 WJJP 792 Ro* 08 41 58.8414616699 +20 06 27.092947108   14.279 13.160     K4V 51 0
99 Cl* NGC 2632 HSHJ 404 Er* 08 42 01.5994276704 +19 26 46.045518864           M3.4 30 0
100 Cl* NGC 2632 HSHJ 405 * 08 42 01.6565344512 +19 27 01.467642852           ~ 5 0
101 2MASS J08421149+1952499 BD? 08 42 11.4951120144 +19 52 50.293589052         17.83 ~ 5 0
102 Cl* NGC 2632 HSHJ 412 Er* 08 42 13.1263450872 +19 18 52.749680940           M4.7 28 0
103 Cl* NGC 2632 HSHJ 421 Er* 08 42 23.8266450840 +19 23 12.439689936           M4.3 34 0
104 Cl* NGC 2632 HSHJ 428 Er* 08 42 37.6159764552 +19 59 18.894925068           M3.5 34 0
105 Cl* NGC 2632 PHJ 23 * 08 42 54.69 +20 03 35.8           ~ 3 0
106 Cl* NGC 2632 PHJ 24 * 08 43 01.30 +19 49 59.6           ~ 3 0
107 Cl* NGC 2632 HSHJ 446 Er* 08 43 13.2641676792 +20 00 16.136497728           M4.8 22 0
108 Cl* NGC 2632 HSHJ 451 * 08 43 20.1390555840 +20 04 25.893977880           M4.4 26 0
109 Cl* NGC 2632 HSHJ 452 Er* 08 43 20.2976461128 +20 04 45.586123320           M3.7 36 0
110 Cl* NGC 2632 HSHJ 455 Er* 08 43 27.5944718592 +19 49 40.494541152           M3.6 33 0
111 Cl* NGC 2632 PHJ 26 * 08 43 59.5926079344 +20 07 10.348770540           ~ 5 0

To bookmark this query, right click on this link: simbad:objects in 1999MNRAS.310...87H and select 'bookmark this link' or equivalent in the popup menu