2002A&A...395..813B

Query : 2002A&A...395..813B

2002A&A...395..813B - Astronomy and Astrophysics, volume 395813-821 (2002/12-1)

A substellar mass function for Alpha Persei.

BARRADO Y NAVASCUES D., BOUVIER J., STAUFFER J.R., LODIEU N. and McCAUGHREAN M.J.

Abstract (from CDS):

We present a deep, wide-field optical survey of the young stellar cluster Alpha Per, in which we have discovered a large population of candidate brown dwarfs. Subsequent infrared photometric follow-up shows that the majority of them are probable or possible members of the cluster, reaching to a minimum mass of 0.035M☉. We have used this list of members to derive the luminosity and mass functions of the substellar population of the cluster (α=0.59±0.05, when expressed in the mass spectrum form φ∝M–α) and compared its slope to the value measure for the Pleiades. This comparison indicates that the two cluster mass functions are, indeed, very similar.

Abstract Copyright: ∼

Journal keyword(s): open clusters and associations: individual: Alpha Per - stars: low-mass, brown dwarfs - stars: luminosity, mass functions

VizieR on-line data: <Available at CDS (J/A+A/395/813): table3.dat>

Nomenclature: Table 3: Cl* Melotte 20 AP NNN (Nos 327-412) added.

Simbad objects: 121

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Number of rows : 121
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 SA 92- reg 00 55 03.80 +00 47 13.2           ~ 102 0
2 Cl* Melotte 20 AP 300 LM* 03 17 27.5618081664 +49 36 52.857746568           M6: 7 0
3 Cl* Melotte 20 AP 301 LM* 03 18 09.0630265752 +49 25 18.961783644           M6.5 9 0
4 Cl* Melotte 20 AP 387 * 03 18 19.3326628632 +49 14 35.078892900           ~ 3 0
5 Cl* Melotte 20 AP 356 * 03 18 22.0630838352 +49 20 19.462186572       18.670 16.737 ~ 7 0
6 Cl* Melotte 20 AP 302 LM* 03 19 08.4671182344 +48 43 46.281557496           ~ 3 0
7 Cl* Melotte 20 AP 303 LM* 03 19 10.9214585882 +48 42 18.401215404           ~ 8 0
8 Cl* Melotte 20 AP 304 LM* 03 19 13.2485844720 +48 31 53.508087444           ~ 4 0
9 Cl* Melotte 20 AP 305 LM* 03 19 21.5922818640 +49 23 30.905602188       20.594 18.355 ~ 4 0
10 Cl* Melotte 20 AP 306 LM* 03 19 41.3482862400 +50 30 45.001565892           M8 7 0
11 Cl* Melotte 20 AP 352 LM* 03 19 51.9640627080 +48 48 22.441501260           ~ 6 0
12 Cl* Melotte 20 AP 385 PM* 03 20 07.4291671368 +50 39 53.348643072           ~ 2 0
13 Cl* Melotte 20 AP 409 * 03 20 17.7 +50 46 03           ~ 1 0
14 Cl* Melotte 20 AP 307 LM* 03 20 21.1088047968 +48 01 03.434077884           ~ 7 0
15 Cl* Melotte 20 DH 100 * 03 20 31.7408534424 +49 39 59.700129552           M 17 0
16 Cl* Melotte 20 LMB 9480 * 03 20 39.1589720280 +49 32 06.145768752       18.900 16.924 M5.5 7 0
17 Cl* Melotte 20 AP 270 LM* 03 20 43.4757498672 +50 59 39.654428856           ~ 11 0
18 Cl* Melotte 20 AP 308 LM* 03 20 59.8438322603 +48 18 36.094455826           ~ 8 0
19 Cl* Melotte 20 AP 397 * 03 21 21.8 +48 02 23           ~ 1 0
20 Cl* Melotte 20 AP 328 * 03 21 25.5982710072 +48 10 01.140696948           ~ 2 0
21 Cl* Melotte 20 AP 346 * 03 21 30.0573293088 +48 49 23.188156716           M5 15 0
22 Cl* Melotte 20 AP 340 * 03 21 34.8366444096 +48 16 28.834302216           M5 3 0
23 Cl* Melotte 20 AP 390 * 03 21 54.45 +48 33 14.9           ~ 2 0
24 Cl* Melotte 20 AP 386 * 03 22 02.3 +47 58 38           ~ 1 0
25 Cl* Melotte 20 AP 355 * 03 22 33.1721940936 +48 47 00.286239480           M5 9 0
26 Cl* Melotte 20 AP 398 * 03 22 38.0 +48 58 03           ~ 2 0
27 Cl* Melotte 20 AP 309 LM* 03 22 40.6676097816 +48 00 33.636111408       18.226 16.378 M5e 18 0
28 Cl* Melotte 20 AP 334 * 03 22 45.4784711880 +48 21 33.181344900       17.815 15.965 ~ 12 0
29 V* V601 Per BY* 03 23 03.3712155792 +48 53 05.793588024     21.21     M6 22 0
30 Cl* Melotte 20 AP 310 LM* 03 23 04.8336556128 +48 16 11.140743432       19.678 17.657 M6.0 6 0
31 Cl* Melotte 20 AP 311 LM* 03 23 08.6710510464 +48 04 50.611755792       19.564 17.497 M6.0 9 0
32 Cl* Melotte 20 AP 406 * 03 23 09.86 +48 16 30.0       23.599 20.785 ~ 3 0
33 Cl* Melotte 20 AP 361 * 03 23 14.04 +48 42 21.3           ~ 2 0
34 Cl* Melotte 20 AP 312 LM* 03 23 15.0217968768 +48 11 55.023999468           M5.5 3 0
35 Cl* Melotte 20 AP 359 * 03 23 37.1320630800 +48 37 15.457041084           ~ 6 0
36 Cl* Melotte 20 AP 401 * 03 23 43.5 +48 22 39           ~ 1 0
37 Cl* Melotte 20 AP 404 * 03 23 48.3 +48 29 03           ~ 1 0
38 Cl* Melotte 20 AP 343 * 03 23 48.5192230344 +48 36 42.827851656       18.014 16.208 ~ 3 0
39 Cl* Melotte 20 AP 329 * 03 23 56.3597147376 +48 09 20.923209144       17.164 15.479 M4.5 16 0
40 Cl* Melotte 20 AP 407 * 03 23 59.3 +48 28 30           ~ 1 0
41 Cl* Melotte 20 AP 371 * 03 23 59.9345944032 +48 54 10.840879008           ~ 7 0
42 Cl* Melotte 20 AP 363 * 03 24 00.3583553208 +47 55 29.740012212           M5.5 6 0
43 Cl* Melotte 20 AP 313 LM* 03 24 08.1095035392 +48 48 29.726943876       19.531 17.539 ~ 4 0
44 Cl* Melotte 20 AP 370 * 03 24 21.2779928568 +48 58 59.615751684           ~ 6 0
45 Cl* Melotte 20 AP 282 * 03 24 22.5621442632 +48 24 26.054186148     18.48     ~ 15 0
46 Cl* Melotte 20 AP 283 * 03 24 38.7826893216 +48 17 17.055097332     19.03     M4.5 7 0
47 Cl* Melotte 20 AP 395 PM* 03 24 44.369 +48 21 27.70           ~ 2 0
48 Cl* Melotte 20 AP 353 * 03 24 48.6761749104 +48 49 47.041209120       18.777 16.680 M6 5 0
49 Cl* Melotte 20 AP 338 * 03 24 52.6623980664 +48 46 12.750084840       18.304 16.069 M 3 0
50 Cl* Melotte 20 AP 380 * 03 25 03.8092301496 +48 49 58.515822876           ~ 7 0
51 Cl* Melotte 20 AP 333 * 03 25 13.5484807536 +50 27 33.018062760           M4.5 9 0
52 Cl* Melotte 20 AP 332 EB* 03 25 16.8993580992 +48 36 09.111455388       17.626 15.805 M4.5 16 0
53 Cl* Melotte 20 AP 314 LM* 03 25 19.4262597720 +49 17 59.114345172           M5.5 3 0
54 Cl* Melotte 20 AP 362 * 03 25 24.4677933600 +48 45 21.506397516       18.764 16.862 ~ 3 0
55 Cl* Melotte 20 AP 342 * 03 25 39.2483511336 +48 45 21.201970320       18.288 16.207 M 3 0
56 Cl* Melotte 20 AP 399 * 03 25 48.56 +50 01 00.8       22.715 20.151 ~ 2 0
57 Cl* Melotte 20 AP 412 * 03 26 03.1 +49 30 29           ~ 1 0
58 Cl* Melotte 20 AP 411 * 03 26 10.1 +49 37 53           ~ 1 0
59 Cl* Melotte 20 AP 410 * 03 26 21.6 +48 44 50           ~ 1 0
60 Cl* Melotte 20 AP 339 * 03 26 33.2538452856 +50 07 41.712247416       17.967 16.148 M5 15 0
61 Cl* Melotte 20 AP 315 LM* 03 26 34.1160606696 +49 07 46.115122908           M6.5 6 0
62 Cl* Melotte 20 AP 366 * 03 26 35.4916627536 +49 15 43.856702100       19.045 17.040 M6 8 0
63 Cl* Melotte 20 AP 408 * 03 26 36.0 +49 36 58           ~ 1 0
64 Cl* Melotte 20 AP 369 PM* 03 26 45.1030890840 +50 25 06.599928216       19.461 17.258 ~ 2 0
65 Cl* Melotte 20 AP 349 * 03 26 47.9993837688 +50 02 15.480608388       18.445 16.562 M5.5 9 0
66 Cl* Melotte 20 AP 348 * 03 26 48.09 +48 44 00.8           ~ 1 0
67 Cl Melotte 20 MGr 03 26 50.6 +48 51 48           ~ 928 0
68 Cl* Melotte 20 AP 344 * 03 26 52.0933763304 +50 00 32.617127052       18.238 16.270 M5.5 7 0
69 Cl* Melotte 20 AP 378 * 03 27 00.3 +49 14 38           ~ 2 0
70 Cl* Melotte 20 AP 377 * 03 27 31.3110873840 +48 39 23.247300924           ~ 7 0
71 Cl* Melotte 20 AP 354 * 03 27 31.6818230688 +48 53 22.823817432           M6 3 0
72 Cl* Melotte 20 AP 384 * 03 27 40.0219237920 +48 33 55.724040900           ~ 5 0
73 Cl* Melotte 20 AP 389 * 03 27 41.2547325552 +48 40 33.163395780           ~ 2 0
74 Cl* Melotte 20 AP 372 LM* 03 28 02.2307436456 +48 41 06.872500500           ~ 5 0
75 Cl* Melotte 20 AP 317 LM* 03 28 06.0210829392 +48 45 12.413893212           ~ 4 0
76 Cl* Melotte 20 AP 396 * 03 28 16.0 +48 37 40           ~ 1 0
77 Cl* Melotte 20 AP 365 * 03 28 22.9499354784 +49 11 24.002716452       19.057 17.030 ~ 7 0
78 Cl* Melotte 20 AP 392 * 03 28 27.1 +50 20 02           ~ 2 0
79 Cl* Melotte 20 DH 190 * 03 28 47.7108040896 +50 01 58.388191680           M5 8 0
80 Cl* Melotte 20 AP 400 * 03 28 48.0 +50 20 42           ~ 2 0
81 Cl* Melotte 20 AP 291 * 03 28 52.9600103256 +50 19 25.806341964     19.8     M4.5 5 0
82 Cl* Melotte 20 AP 393 * 03 29 08.2 +48 25 35           ~ 1 0
83 Cl* Melotte 20 AP 405 * 03 29 13.0 +50 05 24           ~ 1 0
84 Cl* Melotte 20 AP 379 * 03 29 18.7452148056 +50 22 10.787384820           ~ 4 0
85 Cl* Melotte 20 AP 403 * 03 30 38.7 +50 16 39           ~ 2 0
86 Cl* Melotte 20 AP 402 * 03 30 38.7 +50 16 39           ~ 2 0
87 Cl* Melotte 20 AP 318 LM* 03 30 42.3753321000 +48 21 25.180368804           M6.0 7 0
88 Cl* Melotte 20 AP 319 LM* 03 31 03.1361612832 +49 02 55.781422548           ~ 7 0
89 Cl* Melotte 20 AP 341 * 03 31 03.3948407952 +50 24 41.645602800           M5 14 0
90 Cl* Melotte 20 AP 347 * 03 31 33.7690194048 +49 52 02.122644216           M5 13 0
91 Cl* Melotte 20 AP 388 * 03 31 47.4 +50 03 25           ~ 2 0
92 Cl* Melotte 20 AP 336 * 03 31 55.1499261312 +49 08 29.757312924           M 3 0
93 Cl* Melotte 20 AP 331 * 03 32 06.0173394096 +50 05 53.827122012           M4.5 15 0
94 Cl* Melotte 20 AP 350 * 03 32 06.8933630088 +49 25 22.470723912           M 8 0
95 Cl* Melotte 20 AP 321 LM* 03 32 18.7791530136 +49 32 15.862905744           ~ 8 0
96 Cl* Melotte 20 AP 383 * 03 32 22.8 +48 54 11           ~ 1 0
97 Cl* Melotte 20 AP 360 LM* 03 32 23.7398471040 +50 16 56.267035212           ~ 3 0
98 Cl* Melotte 20 AP 357 * 03 32 42.5100798000 +49 50 08.881514340           ~ 5 0
99 Cl* Melotte 20 AP 376 * 03 32 43.7 +50 18 25           ~ 2 0
100 Cl* Melotte 20 AP 391 * 03 32 48.1 +49 52 26           ~ 1 0
101 Cl* Melotte 20 AP 323 LM* 03 33 20.7089268696 +48 45 48.841647984           ~ 7 0
102 Cl* Melotte 20 AP 345 * 03 33 45.7458668496 +50 08 51.239761332           M5 12 0
103 Cl* Melotte 20 AP 324 LM* 03 33 48.1723687824 +48 52 28.240608504           M6.5 6 0
104 Cl* Melotte 20 AP 337 * 03 34 07.4879957448 +48 32 05.517059964           M5 7 0
105 Cl* Melotte 20 AP 330 * 03 34 15.6 +49 58 48     18.79     M4.5 3 0
106 Cl* Melotte 20 AP 358 * 03 34 37.8 +49 13 53           ~ 2 0
107 Cl* Melotte 20 AP 367 * 03 34 40.7723162496 +50 03 40.278927060           ~ 7 0
108 Cl* Melotte 20 AP 394 * 03 35 25.88 +49 46 54.3           ~ 2 0
109 Cl* Melotte 20 AP 326 LM* 03 38 55.0907686056 +48 57 28.001041776           M7.5 4 0
110 IC 348 OpC 03 44 31.1 +32 10 02           ~ 1476 1
111 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
112 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4971 0
113 NAME Ori Trapezium OpC 05 35 16.5 -05 23 14           ~ 1708 1
114 NAME sig Ori Cluster OpC 05 38 42 -02 36.0           ~ 623 0
115 NGC 2168 OpC 06 09 07.5 +24 20 15           ~ 604 0
116 SA 98- reg 06 52 04.1 -00 23 58           ~ 179 0
117 NGC 2516 OpC 07 58 00.5 -60 46 36           ~ 793 0
118 IC 2391 OpC 08 41 17.5 -53 03 00           ~ 871 0
119 SA 101- reg 09 57 28.2 -00 19 39           ~ 74 0
120 NAME Cha 1 MoC 11 06 48 -77 18.0           ~ 1266 1
121 NAME Upper Sco Association As* 16 12 -23.4           ~ 1586 1

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