2003A&A...400..891M

Query : 2003A&A...400..891M

2003A&A...400..891M - Astronomy and Astrophysics, volume 400, 891-902 (2003/3-4)

Brown dwarfs in the Pleiades cluster: Clues to the substellar mass function.

MORAUX E., BOUVIER J., STAUFFER J.R. and CUILLANDRE J.-C.

Abstract (from CDS):

We present the results of a 6.4 square degrees imaging survey of the Pleiades cluster in the I and Z-bands. The survey extends up to 3 degrees from the cluster center and is 90% complete down to I≃22. It covers a mass range from 0.03M☉ to 0.48M☉ and yields 40 brown dwarf candidates (BDCs) of which 29 are new. The spatial distribution of BDCs is fitted by a King profile in order to estimate the cluster substellar core radius. The Pleiades mass function is then derived accross the stellar-substellar boundary and we find that, between 0.03M☉ and 0.48M☉, it is well represented by a single power-law, dN/dM∝M–α, with an index α=0.60±0.11. Over a larger mass domain, however, from 0.03M☉ to 10M☉, the mass function is better fitted by a log-normal function. We estimate that brown dwarfs represent about 25% of the cluster population which nevertheless makes up less than 1.5% of the cluster mass. The early dynamical evolution of the cluster appears to have had little effect on its present mass distribution at an age of 120Myr. Comparison between the Pleiades mass function and the Galactic field mass function suggests that apparent differences may be mostly due to unresolved binary systems.

Abstract Copyright: ∼

Journal keyword(s): stars: low-mass, brown dwarfs - stars: luminosity function, mass function - open clusters and associations: individual: Pleiades

VizieR on-line data: <Available at CDS (J/A+A/400/891): table3.dat>

Nomenclature: Table 3: Cl* Melotte 22 MBSC NNN (Nos 1-109). Table 4: Cl* Melotte 22 PLIZ NN (Nos 1-40).

CDS comments: Table 3, paper: Numbering 111 and 112 are misprints, the table contains objects from 1 to 109.

Simbad objects: 153

goto Full paper

goto View the references in ADS

Number of rows : 153
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 Cl* Melotte 22 DH 104 PM* 03 39 22.4067035066 +26 11 36.342917243     18.20   14.90 ~ 17 0
2 Cl* Melotte 22 MBSC 82 * 03 39 44.3567690928 +26 18 19.038926844           ~ 4 0
3 Cl* Melotte 22 DH 114 PM* 03 39 47.0121326736 +26 21 14.603073300     18.20   15.20 M4 13 0
4 Cl* Melotte 22 MBSC 94 PM* 03 39 57.1389319560 +26 07 00.331696380           ~ 11 0
5 Cl* Melotte 22 DH 120 PM* 03 39 57.8411898504 +25 55 29.897317488         15.72 ~ 14 0
6 Cl* Melotte 22 MBSC 63 * 03 41 29.3741638008 +24 53 40.266133080           ~ 1 0
7 Cl* Melotte 22 HHJ 69 PM* 03 41 39.8323544904 +24 52 30.258537924     19.70   15.90 ~ 17 0
8 Cl* Melotte 22 PLIZ 4 LM* 03 41 40.8997112232 +25 54 24.307734816           ~ 6 0
9 V* KQ Tau Er* 03 41 58.8532062480 +26 12 21.420343224   18.54 17.02   14.32 ~ 23 0
10 Cl* Melotte 22 BPL 31 * 03 41 59.6593000416 +24 42 18.440000100         16.62 ~ 7 0
11 Cl* Melotte 22 DH 205 Er* 03 42 03.2986231120 +24 32 13.478065074   17.933 16.396   13.923 M3.0 42 0
12 V* V611 Tau Er* 03 42 31.2036293864 +24 49 21.661736612   20.5 19.10   15.80 M4 26 0
13 Cl* Melotte 22 PLIZ 8 LM* 03 43 00.1664960928 +24 43 52.633957620         18.80 M7.9 21 0
14 V* LU Tau Er* 03 43 09.7423663800 +24 41 33.100441764 20.523 17.97 16.37   13.73 M3.3 42 0
15 V* V620 Tau Er* 03 43 20.5660821888 +24 26 35.225177784         15.67 ~ 31 0
16 Cl* Melotte 22 DH 267 ** 03 43 26.9620657752 +24 27 10.078899876   18.158 16.581   13.850 M3.6 33 0
17 Cl* Melotte 22 DH 269 PM* 03 43 29.8886494560 +24 39 23.799780108 23.537   20.0     ~ 24 0
18 V* V622 Tau Y*O 03 43 34.1357461272 +25 35 26.158489764   18.61       ~ 30 0
19 2MASS J03433666+2547007 Y*O 03 43 36.6635652240 +25 47 00.823930692     16.83     ~ 16 0
20 Cl* Melotte 22 PLIZ 16 LM* 03 43 40.28880 +24 30 11.3976         19.50 M8.3 22 0
21 Cl* Melotte 22 HHJ 77 PM* 03 43 42.8863432416 +25 51 37.239424128     19.4     ~ 12 0
22 Cl* Melotte 22 DH 283 Er* 03 43 43.1382135888 +24 32 56.352844320 22.956         ~ 19 0
23 Cl* Melotte 22 DH 285 Er* 03 43 43.7053425548 +24 29 15.856191090   17.807 16.217   13.803 M2.8 45 0
24 Cl* Melotte 22 MBSC 72 PM* 03 43 44.0748432192 +25 39 49.788464544           ~ 11 0
25 Cl* Melotte 22 DH 298 PM* 03 43 52.7831817121 +25 29 30.583003897     17.0     ~ 19 0
26 Cl* Melotte 22 DH 316 PM* 03 44 10.7529582161 +25 37 38.475108357     17.98   14.97 M4 19 0
27 Cl* Melotte 22 PLIZ 11 LM* 03 44 12.6893899704 +25 24 35.024892084           ~ 6 0
28 V* V515 Tau Y*O 03 44 13.96488 +25 32 15.5436   18.754 17.146   14.070 M3.5 23 0
29 Cl* Melotte 22 MBSC 75 PM* 03 44 25.0762113264 +25 34 04.144066536     19.12 18.1 15.67 ~ 16 0
30 IC 348 OpC 03 44 31.7 +32 09 32           ~ 1393 1
31 Cl* Melotte 22 HHJ 68 PM* 03 44 32.1644990989 +25 08 12.508630785     19.30   15.90 ~ 17 0
32 V* V742 Tau Er* 03 44 33.0683236425 +25 45 09.788453576           M4 21 0
33 Cl* Melotte 22 PLIZ 9 LM* 03 44 35.1625882416 +25 13 43.002580476         18.66 M9.3 15 0
34 Cl* Melotte 22 PLIZ 26 LM* 03 44 48.66537 +25 39 17.5825           ~ 2 0
35 Cl* Melotte 22 DH 367 PM* 03 45 01.2071151960 +25 21 05.879134008         15.70 ~ 15 0
36 Cl* Melotte 22 DH 368 PM* 03 45 02.8793720661 +25 05 19.878946618     18.54   15.37 ~ 24 0
37 Cl* Melotte 22 DH 371 PM* 03 45 04.2033381336 +26 40 44.908557852         15.10 ~ 14 0
38 Cl* Melotte 22 DH 377 * 03 45 09.0309187438 +25 32 49.256640237     18.20   15.20 ~ 17 0
39 Cl* Melotte 22 DH 404 * 03 45 51.9474488136 +25 10 01.889449284     18.70   15.20 ~ 19 0
40 Cl* Melotte 22 PLIZ 38 LM* 03 45 54.71419 +26 30 14.8610           ~ 1 0
41 2MASS J03455726+2511129 Y*O 03 45 57.2765493849 +25 11 12.918587213     16.5   13.75 M3.7 28 0
42 Cl* Melotte 22 MBSC 14 * 03 45 57.8216047536 +26 18 44.060640516           ~ 1 0
43 Cl* Melotte 22 DH 413 * 03 45 58.8011129688 +26 20 02.003055900     20.40   15.90 ~ 10 0
44 Cl* Melotte 22 HHJ 194 * 03 46 06.4502516808 +25 25 11.674096572     17.60   15.10 ~ 3 0
45 Cl* Melotte 22 DH 437 Er* 03 46 19.8806140799 +24 59 00.744790084     17.40   14.40 ~ 25 0
46 Cl* Melotte 22 DH 444 PM* 03 46 23.7268580497 +26 34 23.335027335     18.60   15.20 ~ 17 0
47 Cl Melotte 22 OpC 03 46 24.2 +24 06 50           ~ 3436 0
48 V* V532 Tau Y*O 03 46 45.7698003048 +25 27 30.438348696   18.43 16.87   14.21 M3.5 39 0
49 Cl* Melotte 22 DH 469 PM* 03 46 47.1814276044 +25 20 53.347464211     18.70   15.00 M4 18 0
50 V* V860 Tau Er* 03 46 54.0265836576 +25 14 45.026202336   17.84 16.19   13.76 M2.8 50 0
51 Cl* Melotte 22 HHJ 31 * 03 46 55.3501675416 +25 51 29.550340332         16.40 ~ 5 0
52 Cl* Melotte 22 SK 432 Er* 03 47 15.2788864800 +25 06 55.523028168   18.361 16.701 16.11 13.976 ~ 28 0
53 Cl* Melotte 22 DH 507 * 03 47 21.8380784768 +25 53 52.584398281   16.793 15.209   13.109 M1.2 24 0
54 Cl* Melotte 22 DH 508 PM* 03 47 21.9301649472 +26 22 47.554296132     18.20   14.90 ~ 15 0
55 Cl* Melotte 22 PLIZ 24 LM* 03 47 23.70720 +26 00 59.9421           ~ 1 0
56 V* V539 Tau Er* 03 47 25.7891402808 +25 08 33.066300300   18.68 16.91   13.98 M3.5 49 0
57 Cl* Melotte 22 MBSC 49 * 03 47 25.8900878664 +25 26 26.762192988           ~ 13 0
58 Cl* Melotte 22 DH 516 PM* 03 47 28.3995374294 +26 32 05.893633738         15.15 ~ 16 0
59 V* V456 Tau Er* 03 47 30.5787761614 +26 16 44.835665764     17.00   14.40 ~ 22 0
60 Cl* Melotte 22 MBSC 104 * 03 47 31.3620856128 +25 25 11.191394928           ~ 1 0
61 V* V751 Tau Er* 03 47 37.3453945582 +25 20 02.584459343           ~ 21 0
62 Cl* Melotte 22 DH 534 * 03 47 43.8800878416 +26 13 27.158709648         15.76 ~ 15 0
63 Cl* Melotte 22 DH 537 Er* 03 47 47.8768947912 +25 13 33.788928108     18.03   14.70 ~ 22 0
64 Cl* Melotte 22 PLIZ 7 LM* 03 48 12.1215915504 +25 54 28.359163908           ~ 2 0
65 Cl* Melotte 22 DH 563 Er* 03 48 15.4757607168 +25 14 36.600020556         15.61 ~ 21 0
66 Cl* Melotte 22 BPL 183 * 03 48 36.3295181784 +25 15 41.371396560         16.59 ~ 11 0
67 Cl* Melotte 22 DH 589 Er* 03 48 44.0424757617 +25 06 22.619994009         15.16 ~ 29 0
68 Cl* Melotte 22 BPL 192 * 03 48 50.4393603816 +25 17 54.839773212         17.16 ~ 11 0
69 Cl* Melotte 22 DH 603 PM* 03 49 08.8297135872 +25 53 48.912658008   17.661 16.115   13.673 M2.5e 24 0
70 V* V798 Tau Er* 03 49 20.2978211448 +25 25 42.585386448     17.40   14.80 ~ 17 0
71 Cl* Melotte 22 DH 618 * 03 49 22.1367134856 +25 47 37.972573260     18.00   15.10 ~ 14 0
72 Cl* Melotte 22 MBSC 95 * 03 49 28.7955556080 +26 50 51.655589808           ~ 7 0
73 Cl* Melotte 22 DH 628 PM* 03 49 32.8014817450 +25 47 47.102141215     18.30   15.00 ~ 18 0
74 Cl* Melotte 22 MBSC 29 * 03 49 38.2335138072 +26 51 05.894422596         14.92 ~ 14 0
75 Cl* Melotte 22 PLIZ 29 LM* 03 49 45.24310 +26 50 50.3368           ~ 2 0
76 Cl* Melotte 22 MBSC 98 PM* 03 49 48.1504067880 +26 37 47.835400296           ~ 9 0
77 Cl* Melotte 22 PLIZ 40 LM* 03 49 49.24710 +26 33 56.3445           ~ 1 0
78 Cl* Melotte 22 PLIZ 32 LM* 03 50 15.43516 +26 34 51.5165           ~ 1 0
79 Cl* Melotte 22 BPL 229 * 03 50 29.2936536672 +24 56 34.759945428         15.33 ~ 4 0
80 Cl* Melotte 22 DH 681 * 03 50 40.8218488272 +24 40 02.803855224         15.87 ~ 14 0
81 Cl* Melotte 22 DH 683 * 03 50 42.4301921582 +24 12 55.596859573         15.45 ~ 15 0
82 Cl* Melotte 22 PLIZ 33 LM* 03 50 44.68 +26 42 09.4           ~ 1 0
83 Cl* Melotte 22 DH 687 PM* 03 50 54.6458888856 +24 21 55.929732660         15.14 ~ 14 0
84 Cl* Melotte 22 MBSC 69 * 03 50 54.9792208680 +24 33 03.721070340           ~ 10 0
85 V* V800 Tau Y*O 03 50 57.4107631046 +24 06 30.833875982   18.153 16.572   14.081 M3.2 33 0
86 Cl* Melotte 22 DH 692 * 03 51 05.0796871560 +26 36 51.486294636         16.39 ~ 11 0
87 Cl* Melotte 22 PLIZ 1 LM* 03 51 05.9606513808 +24 36 17.059872672           ~ 3 0
88 V* V379 Tau Y*O 03 51 11.5285723896 +24 23 13.175259576   17.737 16.195   13.641 M3.2 30 0
89 Cl* Melotte 22 BPL 232 * 03 51 11.8782827904 +23 44 43.492485012         15.87 ~ 26 0
90 V* V466 Tau Y*O 03 51 19.0613311155 +24 10 13.222165612   17.698 16.132   13.648 M2.8 39 0
91 Cl* Melotte 22 PLIZ 12 LM* 03 51 25.5680723568 +23 45 21.465842004         19.00 M8.0 65 0
92 Cl* Melotte 22 PLIZ 17 LM* 03 51 26.6574321096 +23 30 10.175836572           ~ 2 0
93 Cl* Melotte 22 PLIZ 23 LM* 03 51 33.46284 +24 10 14.2474           ~ 2 0
94 Cl* Melotte 22 DH 715 PM* 03 51 33.9933539865 +24 34 09.116181820         14.83 ~ 17 0
95 Cl* Melotte 22 DH 716 * 03 51 34.2511641915 +23 47 50.044471309         15.50 ~ 17 0
96 V* V383 Tau Er* 03 51 39.1049026704 +24 35 29.260755996   18.6     14.96 ~ 20 0
97 Cl* Melotte 22 DH 723 * 03 51 42.3086609537 +24 21 41.434317345         15.15 ~ 16 0
98 Cl* Melotte 22 PLIZ 10 LM* 03 51 44.9383754496 +23 26 39.562373112         18.45 ~ 14 0
99 Cl* Melotte 22 PLIZ 30 LM* 03 51 45.95440 +26 49 38.3853           ~ 1 0
100 Cl* Melotte 22 PLIZ 31 LM* 03 51 47.660 +24 39 58.90         20.944 ~ 7 0
101 Cl* Melotte 22 BRB 1 LM* 03 51 51.5439834336 +23 34 49.370818908         16.10 M4.9 32 0
102 Cl* Melotte 22 PLIZ 22 LM* 03 51 52.61942 +26 52 31.8549           ~ 1 0
103 V* V475 Tau Y*O 03 51 53.91984 +24 02 51.7452   18.68 16.92   13.96 M3.9 24 0
104 V* V389 Tau Er* 03 51 54.5109452400 +23 33 31.654984572   18.901 17.268   14.357 ~ 27 0
105 V* V387 Tau Er* 03 51 59.3144145552 +24 39 58.956184800           ~ 24 0
106 Cl* Melotte 22 BRB 8 LM* 03 52 05.8178078136 +24 17 31.213029912       19.32 17.34 M5.6 17 0
107 Cl* Melotte 22 PLIZ 3 LM* 03 52 06.7084395888 +24 16 00.643676448         18.02 M6.0 26 0
108 Cl* Melotte 22 DH 748 Er* 03 52 17.5407257861 +24 27 19.902524645         15.03 ~ 28 0
109 Cl* Melotte 22 PLIZ 15 LM* 03 52 18.6548951688 +24 04 27.555121740           ~ 11 0
110 V* V476 Tau Y*O 03 52 30.9101815008 +24 32 39.747343992   18.378 16.858   13.978 M4.2 35 0
111 V* V768 Tau Er* 03 52 38.9042478299 +25 50 25.610370197     17.80   14.80 ~ 33 0
112 Cl* Melotte 22 PLIZ 35 BD* 03 52 39.14137 +24 46 29.7814         21.293 L2.0 8 0
113 Cl* Melotte 22 PLIZ 25 LM* 03 52 44.30 +24 24 50.0           ~ 4 0
114 Cl* Melotte 22 DH 766 Er* 03 52 44.4757093896 +24 20 59.573580072         15.72 ~ 25 0
115 Cl* Melotte 22 BPL 270 * 03 52 46.4448300432 +24 33 41.194124460         15.20 ~ 4 0
116 Cl* Melotte 22 BRB 5 LM* 03 52 51.7858923696 +23 33 48.283557264       18.600 16.60 ~ 19 0
117 Cl* Melotte 22 DH 778 PM* 03 53 07.2791265816 +25 47 21.699822624     20.40   16.10 ~ 25 0
118 Cl* Melotte 22 BRB 6 LM* 03 53 09.6294213576 +23 33 47.961228600       18.77 16.50 ~ 17 0
119 Cl* Melotte 22 MBSC 106 * 03 53 12.5126479632 +25 48 17.126871228           ~ 1 0
120 Cl* Melotte 22 DH 784 * 03 53 24.1106488416 +23 47 58.560127980     18.10   15.20 ~ 19 0
121 Cl* Melotte 22 PLIZ 14 LM* 03 53 32.1888623856 +26 06 55.946923416           ~ 2 0
122 Cl* Melotte 22 DH 790 * 03 53 35.5122025896 +26 07 08.399102304     19.00   15.60 ~ 14 0
123 Cl* Melotte 22 PLIZ 5 LM* 03 53 37.7519281944 +26 02 21.400942956           ~ 1 0
124 Cl* Melotte 22 PLIZ 39 LM* 03 53 40.28279 +26 16 19.7123           ~ 1 0
125 V* V570 Tau Er* 03 53 47.5715696760 +23 44 31.035150276     17.64   14.65 ~ 29 0
126 Cl* Melotte 22 PLIZ 6 LM* 03 53 55.1153189928 +23 23 36.301442892         17.752 M8.0 24 0
127 Cl* Melotte 22 BPL 297 Er* 03 54 00.3769972632 +24 34 50.076324084         16.69 ~ 17 0
128 Cl* Melotte 22 PLIZ 18 LM* 03 54 00.96 +24 54 52.9           ~ 1 0
129 Cl* Melotte 22 PLIZ 34 LM* 03 54 02.55163 +24 40 26.0929           ~ 1 0
130 Cl* Melotte 22 BPL 301 * 03 54 02.7170293763 +23 35 01.237073514         15.52 ~ 18 0
131 Cl* Melotte 22 PLIZ 20 LM* 03 54 05.32560 +23 33 59.7708         19.571 M9.0 16 0
132 V* V400 Tau Y*O 03 54 13.0062182544 +23 20 50.919565236   18.286 16.689   14.107 M3.2 32 0
133 Cl* Melotte 22 PLIZ 28 BD* 03 54 14.05703 +23 17 52.2063         20.760 L0.0 9 0
134 Cl* Melotte 22 BPL 308 Er* 03 54 15.6031176408 +24 20 45.876420204         16.51 ~ 15 0
135 Cl* Melotte 22 DH 801 Er* 03 54 22.4741783376 +23 38 12.181649820     18.00   15.00 ~ 26 0
136 V* V401 Tau Er* 03 54 25.0333185936 +24 42 43.787850372   20.4     15.49 ~ 22 0
137 Cl* Melotte 22 PLIZ 36 LM* 03 54 38.35989 +23 38 00.9290           ~ 1 0
138 Cl* Melotte 22 DH 806 Er* 03 54 39.1278583968 +24 35 54.718870452         16.33 ~ 21 0
139 Cl* Melotte 22 PLIZ 27 LM* 03 55 00.36843 +23 38 08.9319           ~ 1 0
140 Cl* Melotte 22 PLIZ 13 LM* 03 55 04.3513018872 +26 15 50.406424200           ~ 3 0
141 Cl* Melotte 22 SK 67 PM* 03 55 07.0794818112 +24 17 25.942547184     16.09     ~ 4 0
142 Cl* Melotte 22 DH 812 Er* 03 55 08.9682941280 +24 05 02.769135756     17.10   14.00 M3.4 36 0
143 Cl* Melotte 22 MBSC 107 * 03 55 10.5606032808 +23 40 30.916257672           ~ 1 0
144 Cl* Melotte 22 PLIZ 2 LM* 03 55 23.0746108704 +24 49 05.221060212         17.719 M7.1 21 0
145 Cl* Melotte 22 PLIZ 21 LM* 03 55 27.61660 +25 49 41.0330           ~ 3 0
146 Cl* Melotte 22 DH 815 * 03 55 30.8947205856 +23 23 51.094773132     17.21   14.44 ~ 18 0
147 Cl* Melotte 22 DH 818 * 03 55 34.4047439352 +23 58 28.594813512     19.60   15.80 ~ 25 0
148 Cl* Melotte 22 PLIZ 37 LM* 03 55 39.57 +24 20 42.1           ~ 1 0
149 Cl* Melotte 22 PLIZ 19 LM* 03 56 16.3834866216 +23 54 50.870560248           ~ 3 0
150 Cl* Melotte 22 DH 837 Er* 03 56 28.8957579120 +24 01 54.353934993     17.90   15.20 ~ 24 0
151 Cl* Melotte 22 DH 846 * 03 56 52.9044782472 +23 25 44.123497033     17.60   14.60 ~ 7 0
152 NAME sig Ori Cluster OpC 05 38 42 -02 36.0           ~ 567 0
153 NGC 2168 OpC 06 09 05.3 +24 20 10           ~ 558 0

To bookmark this query, right click on this link: simbad:objects in 2003A&A...400..891M and select 'bookmark this link' or equivalent in the popup menu