2000ApJ...540.1016L


C.D.S. - SIMBAD4 rel 1.7 - 2020.02.17CET20:36:51

2000ApJ...540.1016L - Astrophys. J., 540, 1016-1040 (2000/September-2)

The initial mass function of low-mass stars and brown dwarfs in young clusters.

LUHMAN K.L., RIEKE G.H., YOUNG E.T., COTERA A.S., CHEN H., RIEKE M.J., SCHNEIDER G. and THOMPSON R.I.

Abstract (from CDS):

We have obtained images of the Trapezium Cluster (140''x140''; 0.3 pcx0.3 pc) with the Hubble Space Telescope Near-Infrared Camera and Multi-Object Spectrometer (NICMOS). Combining these data with new ground-based K-band spectra (R=800) and existing spectral types and photometry, we have constructed an H-R diagram and used it and other arguments to infer masses and ages. To allow comparison with the results of our previous studies of IC 348 and ρ Oph, we first use the models of D'Antona & Mazzitelli. With these models, the distributions of ages of comparable samples of stars in the Trapezium, ρ Oph, and IC 348 indicate median ages of ∼0.4 Myr for the first two regions and ∼1-2 Myr for the latter. The low-mass initial mass functions (IMFs) in these sites of clustered star formation are similar over a wide range of stellar densities (ρ Oph, n=0.2-1x103 pc–3; IC 348, n=1x103 pc–3; Trapezium, n=1-5x104 pc–3) and other environmental conditions (e.g., presence or absence of OB stars). With current data, we cannot rule out modest variations in the substellar mass functions among these clusters. We then make the best estimate of the true form of the IMF in the Trapezium by using the evolutionary models of Baraffe et al. and an empirically adjusted temperature scale and compare this mass function to recent results for the Pleiades and the field. All of these data are consistent with an IMF that is flat or rises slowly from the substellar regime to about 0.6 M and then rolls over into a power law that continues from about 1 M to higher masses with a slope similar to or somewhat larger than the Salpeter value of 1.35. For the Trapezium, this behavior holds from our completeness limit of ∼0.02 M and probably, after a modest completeness correction, even from 0.01-0.02 M. These data include ∼50 likely brown dwarfs. We test the predictions of theories of the IMF against (1) the shape of the IMF, which is not log-normal, in clusters and the field, (2) the similarity of the IMFs among young clusters, (3) the lowest mass observed for brown dwarfs, and (4) the suggested connection between the stellar IMF and the mass function of prestellar clumps. In particular, most models do not predict the formation of the moderately large numbers of isolated objects down to 0.01 M that we find in the Trapezium.

Abstract Copyright:

Journal keyword(s): Infrared: Stars - Stars: Evolution - Stars: Formation - Stars: Low-Mass, Brown Dwarfs - Stars: Luminosity Function, Mass Function - Stars: Pre-Main-Sequence

VizieR on-line data: <Available at CDS (J/ApJ/540/1016): table1.dat>

Nomenclature: Table 1: [LRY2000] NNN (Nos 1-320).

Simbad objects: 345

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Number of rows : 345

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 [PSZ2003] J034426.4+320809 Y*O 03 44 26.367 +32 08 09.94           M9 13 0
2 Cl* IC 348 LRL 435 Y*O 03 44 30.2819500726 +32 11 35.199756502         19.070 M2 24 0
3 Cl* IC 348 LRL 603 Y*O 03 44 33.42 +32 10 31.5           M8 18 0
4 IC 348 OpC 03 44 34 +32 09.8           ~ 1212 1
5 [PSZ2003] J034443.9+320836 * 03 44 43.92 +32 08 34.3           M5.5 5 0
6 [PSZ2003] J034444.9+320937 * 03 44 44.91 +32 09 37.5           M7.7 5 0
7 Cl Melotte 22 OpC 03 47 00 +24 07.0           ~ 2935 0
8 LDN 1495E Cl* 04 13 30.7 +28 19 15           ~ 31 0
9 V* GG Tau TT* 04 32 30.3318954228 +17 31 40.834888327 14.84 14.78 13.40 11.54   M0e+M2.0e 638 1
10 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14539 1
11 MLLA 302B * 05 35 12.17 -05 23 47.7     15.81     ~ 6 1
12 V* V1228 Ori Or* 05 35 12.2814452451 -05 23 48.023760022   15.361 14.238   11.906 K1 53 0
13 COUP 478 * 05 35 12.34 -05 23 52.4         16.910 ~ 12 0
14 COUP 480 * 05 35 12.46 -05 24 04.1           ~ 8 0
15 COUP 483 * 05 35 12.57343 -05 23 01.9295     22.73     ~ 21 0
16 V* LV Ori Or* 05 35 12.5987834306 -05 23 44.110059038 14.669 13.863 12.912   11.015 K1V 43 0
17 [LRY2000] 7 IR 05 35 12.755 -05 21 59.22           ~ 1 0
18 COUP 494 * 05 35 12.7900 -05 21 57.900           ~ 5 1
19 JW 395 * 05 35 13.0266332260 -05 22 00.910302673   13.0 18.009   14.840 M2 25 0
20 [HAB84] 13 V* 05 35 13.0367805813 -05 22 15.166294212     17.49   14.084 M4.5 29 0
21 COUP 519 * 05 35 13.05 -05 22 53.5     20.45   16.034 M3.75 14 0
22 [HAB84] 12 * 05 35 13.059 -05 21 53.29     21.12   17.682 ~ 21 0
23 2MASS J05351312-0522471 Y*O 05 35 13.07 -05 22 47.4         17.149 K: 18 0
24 2MASS J05351317-0522210 Y*O 05 35 13.1760135340 -05 22 21.133724834     20.65   14.230 ~ 24 1
25 MAX 35 * 05 35 13.1800 -05 22 21.200           ~ 18 0
26 MLLA 651A * 05 35 13.19 -05 22 21.3           M2.5-M3 10 0
27 COUP 533 * 05 35 13.229 -05 23 55.57           ~ 10 0
28 COUP 531 * 05 35 13.24 -05 22 58.2     20.64   15.049 M5.25 17 0
29 COUP 529 * 05 35 13.2500 -05 22 09.900           ~ 11 0
30 [LRY2000] 18 IR 05 35 13.252 -05 23 22.91           ~ 1 0
31 COUP 540 Y*O 05 35 13.31393 -05 23 53.0166     21.00     M9.5 19 0
32 [LRY2000] 21 IR 05 35 13.316 -05 21 50.20           ~ 1 0
33 MLLA 628 Ir* 05 35 13.3642196798 -05 22 26.140465909   12.7 18.03   14.302 M4.5-M5.5 28 0
34 COUP 541 * 05 35 13.384 -05 23 53.19     22.40     ~ 13 0
35 V* V1398 Ori Or* 05 35 13.4532233424 -05 23 40.431321880   15.790 14.937   12.516 M0 39 0
36 COUP 552 V* 05 35 13.47 -05 23 04.8     20.08   15.678 M3 15 0
37 Parenago 1820 Y*O 05 35 13.5186502134 -05 22 19.550872932   13.1 16.160   13.254 M1.2 40 0
38 COUP 553 * 05 35 13.536 -05 23 30.87   12.9 16.81     M3 20 0
39 CXOONC J053513.5-052400 Y*O 05 35 13.6 -05 23 59           ~ 25 0
40 MLLA 686 * 05 35 13.650 -05 22 11.50           ~ 3 1
41 Parenago 1821 Y*O 05 35 13.7427694483 -05 22 21.970532072 17.886 17.435 16.559   13.422 M2e 38 0
42 COUP 572 * 05 35 13.77462 -05 22 17.3912           ~ 14 0
43 [OW94] 138-340 Y*O 05 35 13.7814 -05 23 39.990           ~ 26 0
44 V* V1496 Ori FU* 05 35 13.8001039312 -05 22 07.024932180   16.184 14.987   12.289 K2e-m4 48 0
45 V* V2248 Ori Or* 05 35 13.801 -05 21 59.66           ~ 28 1
46 COUP 578 * 05 35 13.81 -05 22 02.8   13.1 19.42   15.415 M1 16 0
47 COUP 580 * 05 35 13.8300 -05 22 09.100           ~ 11 0
48 [LRY2000] 37 IR 05 35 13.855 -05 23 35.05           ~ 1 0
49 MAX 52 Y*O 05 35 13.92733 -05 23 20.1123           ~ 19 0
50 MLLA 602 * 05 35 13.9700 -05 22 31.900           ~ 53 0
51 COUP 588 * 05 35 13.9800 -05 21 58.000           ~ 7 0
52 Parenago 1823 Em* 05 35 14.0506648456 -05 23 38.471270173     15.078   12.238 K5 37 0
53 [LRY2000] 42 IR 05 35 14.053 -05 22 05.94           ~ 1 0
54 Parenago 1822 *iN 05 35 14.07 -05 22 36.6     15.906   12.799 M3 46 0
55 COUP J053514.0-052222 HH 05 35 14.10856 -05 22 22.6807           ~ 28 0
56 V* V2254 Ori Or* 05 35 14.113 -05 22 22.73           B 279 2
57 [FRM2016] 166 Y*O 05 35 14.12 -05 23 01.4         14.934 ~ 29 0
58 NAME Orion-KL SFR 05 35 14.16 -05 22 21.5           ~ 1967 1
59 MLLA 709A * 05 35 14.23 -05 22 04.0           ~ 12 0
60 CXOONC J053514.2-052304 Y*O 05 35 14.2900 -05 23 04.300           ~ 16 0
61 COUP 620 * 05 35 14.30842 -05 22 04.3874   14.0 21.31   16.227 ~ 21 1
62 COUP 624 * 05 35 14.3200 -05 23 08.300     21.70     M: 20 0
63 NAME Ori N Y*O 05 35 14.35371 -05 22 32.8820           ~ 101 0
64 COUP 623 * 05 35 14.3700 -05 22 54.100           ~ 16 0
65 COUP 622 * 05 35 14.3700 -05 22 36.100     23.30     ~ 22 0
66 COUP 629 * 05 35 14.3900 -05 22 55.700           ~ 14 0
67 Parenago 1843 Y*O 05 35 14.3946416434 -05 23 33.627095373     15.052   12.251 M1 43 0
68 COUP 630 * 05 35 14.4000 -05 23 23.100           ~ 8 0
69 MLLA 704 V* 05 35 14.49 -05 22 06.8   13.0 18.61   15.037 M3 21 0
70 MLLA 273A * 05 35 14.53389 -05 23 56.0242           ~ 12 0
71 CXOONC J053514.5-052302 * 05 35 14.5400 -05 23 03.700           ~ 9 0
72 MLLA 526 IR 05 35 14.543 -05 22 51.66           ~ 2 0
73 [LRY2000] 59 IR 05 35 14.571 -05 23 50.86           ~ 2 0
74 CXOONC J053514.6-052200 * 05 35 14.58 -05 22 01.2         16.726 K: 13 0
75 Parenago 1839 *iN 05 35 14.64 -05 22 33.7   15.891 14.779   12.008 K7 49 0
76 MAX 63 V* 05 35 14.659 -05 23 01.90     19.12   14.898 M0.5-M2.5 40 0
77 COUP 650 * 05 35 14.6600 -05 23 28.700           ~ 7 0
78 2MASS J05351467-0521567 IR 05 35 14.677 -05 21 56.72           ~ 3 1
79 COUP 656 * 05 35 14.6900 -05 22 38.200           ~ 12 1
80 COUP 657 * 05 35 14.7000 -05 22 49.400           ~ 14 0
81 [LRY2000] 67 IR 05 35 14.708 -05 22 35.62           ~ 1 0
82 [LRY2000] 69 IR 05 35 14.718 -05 22 29.77           ~ 1 0
83 [BOM2000] d147-323 Y*O 05 35 14.7308 -05 23 22.660   12.2     14.105 M3e 37 0
84 MLLA 472 * 05 35 14.813 -05 23 04.89           ~ 11 0
85 CXOONC J053514.8-052315 * 05 35 14.82 -05 23 16.0         14.631 ~ 16 0
86 MLLA 603 Ir* 05 35 14.82 -05 22 31.9   12.8 17.57   14.452 K-M: 30 1
87 COUP 661 * 05 35 14.8200 -05 22 23.200     22.10     ~ 14 0
88 COUP 666 Ir* 05 35 14.8228436842 -05 23 46.426139258   12.3     14.271 ~ 22 0
89 [FW2011] J053514.850-052244.020 IR 05 35 14.850 -05 22 44.02           ~ 2 0
90 2MASS J05351487-0523050 Y*O 05 35 14.871 -05 23 05.07     21.20   17.119 ~ 19 0
91 MAX 66 * 05 35 14.8800 -05 23 05.100           K4 13 0
92 MLLA 650 ISM 05 35 14.89 -05 22 21.4           ~ 7 2
93 COUP 662 * 05 35 14.8982780 -05 22 25.410079           ~ 32 0
94 [H97b] 459 err 05 35 14.90 -05 23 31.9   12.5       ~ 6 1
95 V* V1330 Ori BY* 05 35 14.90 -05 22 39.2   15.040 13.940   11.632 K4 65 0
96 2MASS J05351493-0523289 Y*O 05 35 14.9302332589 -05 23 29.019587855   12.3     14.335 ~ 32 0
97 Parenago 1844 *iN 05 35 14.95 -05 23 39.3   15.249 14.247   12.055 ~ 30 0
98 [OW94] 150-231 Y*O 05 35 14.98 -05 22 31.4         15.161 M6 27 0
99 Parenago 1837 * 05 35 14.9891939836 -05 21 59.928254137   15.592 14.523   12.241 K3.5 39 0
100 COUP 679 * 05 35 15.01 -05 23 54.0         15.656 ~ 11 0
101 MLLA 488 * 05 35 15.0400 -05 23 01.100           M0 12 0
102 [LRY2000] 85 IR 05 35 15.066 -05 23 23.42           ~ 1 0
103 Parenago 1845 *iN 05 35 15.16 -05 23 46.5           M0-M1 23 0
104 Parenago 1841 *iN 05 35 15.1758 -05 22 54.527   15.141 14.075   11.684 ~ 35 0
105 MLLA 470 * 05 35 15.1800 -05 23 05.000           ~ 6 0
106 [MRD2012] 2303 *iN 05 35 15.19 -05 22 24.1   16.124 15.222   12.935 K7 30 0
107 2MASS J05351519-0522367 Y*O 05 35 15.193 -05 22 36.79           ~ 16 0
108 COUP 690 Y*O 05 35 15.21000 -05 23 18.7668           ~ 24 0
109 COUP 691 * 05 35 15.247 -05 23 49.94           ~ 8 0
110 MLLA 630A * 05 35 15.25 -05 22 25.8           ~ 8 0
111 Brun 580 *iN 05 35 15.268 -05 22 56.83 15.256 14.367 13.465   11.383 G6-G8 44 1
112 COUP 687 * 05 35 15.2700 -05 21 55.700     23.60     ~ 11 0
113 MLLA 394 * 05 35 15.29340 -05 23 23.1241           ~ 19 0
114 [FRM2016] 233 * 05 35 15.34 -05 22 40.3         17.228 ~ 11 0
115 V* V1331 Ori BY* 05 35 15.3444129558 -05 22 15.587976220   15.777 14.474   11.707 K: 48 0
116 MLLA 391 Y*O 05 35 15.35340 -05 23 24.0418           ~ 20 0
117 MLLA 630C Y*O 05 35 15.36 -05 22 25.3   12.7 16.592   14.030 M1.5 27 1
118 COUP 700 * 05 35 15.37 -05 23 33.4         13.972 M2e 21 0
119 Parenago 1868 *iN 05 35 15.43 -05 23 45.5         13.084 ~ 32 0
120 Parenago 1861 Y*O 05 35 15.4842897287 -05 22 48.580844541     16.180   12.874 M2 38 1
121 2MASS J05351551-0523373 Y*O 05 35 15.5090 -05 23 37.180         13.821 ~ 47 1
122 MLLA 430 * 05 35 15.53360 -05 23 15.6412           ~ 10 0
123 COUP 716 * 05 35 15.5500 -05 22 46.400           ~ 12 0
124 MLLA 367 * 05 35 15.55170 -05 23 29.5216           ~ 18 0
125 MLLA 657 * 05 35 15.5600 -05 22 20.130           ~ 4 0
126 MLLA 493 * 05 35 15.5940 -05 22 58.832           ~ 15 0
127 Brun 590 Y*O 05 35 15.6158812605 -05 24 03.057251103     14.718   12.305 K9 44 0
128 V* V348 Ori Or* 05 35 15.637 -05 22 56.54   14.352 13.274   10.987 G8-K1 53 0
129 COUP 725 * 05 35 15.6793 -05 23 39.011           ~ 17 1
130 MLLA 322 * 05 35 15.699 -05 23 41.87           ~ 9 0
131 Parenago 1866 Y*O 05 35 15.72550 -05 23 22.4347   16.0 14.5   12.446 ~ 47 1
132 COUP 734 Ir* 05 35 15.73 -05 23 37.9         15.184 ~ 16 0
133 * tet01 Ori E SB* 05 35 15.7734880 -05 23 09.871626     11.1     G2IV 85 0
134 * tet01 Ori H Y*O 05 35 15.793 -05 23 22.51           ~ 12 0
135 JW 489 Y*O 05 35 15.7947 -05 23 26.664   12.3       ~ 60 0
136 TCC 43 * 05 35 15.80180 -05 23 11.8906           ~ 16 0
137 * tet01 Ori A Ae* 05 35 15.8252169327 -05 23 14.332546552 5.87 6.75 6.73 6.42 6.21 B0V 457 1
138 Parenago 1867 Y*O 05 35 15.83370 -05 23 22.4207     13.645   12.102 Ke 75 1
139 Parenago 1860 *iN 05 35 15.8380240259 -05 22 45.853745273     16.466   13.432 M3e 33 0
140 TCC 47 Y*O 05 35 15.85 -05 23 25.5           ~ 47 0
141 TCC 48 * 05 35 15.86300 -05 23 10.7606           ~ 12 0
142 [FRM2016] 261 Y*O 05 35 15.87 -05 23 37.6         15.212 ~ 33 0
143 JW 494 * 05 35 15.873900 -05 23 01.89992   12.3 15.9   13.6 K7 28 0
144 2MASS J05351587-0522328 Y*O 05 35 15.874 -05 22 32.83     20.60   15.697 M2.5:e 23 0
145 V* V2279 Ori Or* 05 35 15.9338 -05 23 50.056 14.794 13.648 12.730   10.537 M0.5+M2 84 0
146 2MASS J05351594-0522211 Y*O 05 35 15.9413701591 -05 22 21.075711901   12.8 16.749   13.806 K7e 29 0
147 TCC 51 * 05 35 15.96540 -05 23 22.6589           ~ 12 0
148 MLLA 747 * 05 35 16.0100 -05 21 53.100           M8 7 0
149 V* AC Ori Or* 05 35 16.0396400 -05 23 53.063091     14.875   12.337 F5e 57 1
150 TCC 54 Rad 05 35 16.06922 -05 23 24.3483           ~ 57 0
151 TCC 57 Y*O 05 35 16.07 -05 23 27.8           ~ 40 0
152 MAX 97 X 05 35 16.07268 -05 23 07.0288           ~ 15 1
153 TCC 55 Y*O 05 35 16.0785 -05 22 54.123           M3 18 0
154 TCC 58 * 05 35 16.09280 -05 23 23.0106           ~ 27 1
155 COUP 775 * 05 35 16.10 -05 22 12.5         15.513 ~ 10 0
156 TCC 59 Y*O 05 35 16.10855 -05 23 14.2457           ~ 25 0
157 * tet01 Ori B Al* 05 35 16.112 -05 23 06.89 7.71 8.20 7.96     B1V 339 2
158 TCC 61 * 05 35 16.1396 -05 22 55.249     21.90     ~ 16 0
159 COUP 776 * 05 35 16.1916520768 -05 22 37.464854747     18.99   14.822 M3.5 25 0
160 COUP 788 * 05 35 16.22630 -05 23 19.0612           ~ 14 0
161 WDS J05353-0522Ja,Jb ** 05 35 16.23 -05 22 09.5           ~ 10 0
162 COUP 785 * 05 35 16.2400 -05 22 24.300           ~ 9 0
163 2MASS J05351628-0522248 * 05 35 16.25 -05 22 24.4         15.522 ~ 13 0
164 [FRM2016] 291 Y*O 05 35 16.25 -05 22 10.6   13.7     14.966 M1.5-M2e 25 0
165 [BOM2000] d163-222 Y*O 05 35 16.26 -05 22 21.9     19.90   16.007 M3e 20 0
166 LV 3 Y*O 05 35 16.2830 -05 23 16.512   11.4     12.672 K3 66 0
167 MAX 102 * 05 35 16.2900 -05 22 10.400           ~ 16 0
168 TCC 65 Y*O 05 35 16.32060 -05 23 22.5317           ~ 37 2
169 TCC 66 * 05 35 16.32410 -05 23 25.2679           ~ 12 0
170 MAX 104 Y*O 05 35 16.3379446681 -05 22 49.034108488   13.3 17.09   13.972 M1.5e 27 0
171 [LRY2000] 155 IR 05 35 16.365 -05 22 22.51           ~ 1 0
172 Parenago 1895 *iN 05 35 16.3761310695 -05 24 03.352207848     14.06     K4-K7 32 0
173 COUP 798 * 05 35 16.3836133386 -05 21 50.627853586     20.32   15.571 M2.5 16 0
174 TCC 67 * 05 35 16.39970 -05 23 11.2870           ~ 12 0
175 * tet01 Ori C ** 05 35 16.46375 -05 23 22.8486 4.20 5.15 5.13 4.91 4.73 O7Vp 1264 1
176 COUP 808 * 05 35 16.4900 -05 22 56.500           ~ 11 0
177 MLLA 588B * 05 35 16.49 -05 22 35.2           ~ 11 1
178 [FRM2016] 306 Y*O 05 35 16.4933279950 -05 22 35.154361064     17.77   14.600 M4 31 0
179 NAME Trapezium Cluster As* 05 35 16.5 -05 23 14           ~ 1445 1
180 [LRY2000] 162 IR 05 35 16.539 -05 22 53.84           ~ 1 0
181 COUP 813 * 05 35 16.5806550809 -05 24 06.035502564   13.2 18.5   13.827 M0 21 1
182 MLLA 532 Y*O 05 35 16.59532 -05 22 50.3193           ~ 13 1
183 TCC 70 Y*O 05 35 16.61480 -05 23 16.0836           ~ 43 0
184 TCC 71 * 05 35 16.65290 -05 23 28.8309           ~ 11 0
185 PSH 152 * 05 35 16.70 -05 24 04.0           K6 9 0
186 * tet01 Ori G Y*O 05 35 16.723 -05 23 16.56 14.712 13.704 13.678   13.081 K0.7 96 1
187 * tet01 Ori F Em* 05 35 16.72360 -05 23 25.1688 9.928 10.075 10.122   9.652 B8 34 0
188 2MASS J05351671-0522309 Y*O 05 35 16.7384489491 -05 22 31.242377040     18.10   14.820 M4 33 0
189 TCC 74 Y*O 05 35 16.76210 -05 23 28.0209           ~ 38 0
190 [LRY2000] 171 IR 05 35 16.763 -05 22 11.91           ~ 1 0
191 V* V1279 Ori Or* 05 35 16.7648570441 -05 24 04.281291528   14.815 13.722   11.441 M0.9e 48 0
192 COUP 834 * 05 35 16.822 -05 23 42.24           ~ 10 0
193 [OW94] 168-326 Y*O 05 35 16.85 -05 23 26.2           ~ 39 0
194 TCC 77 Y*O 05 35 16.851 -05 23 26.71           ~ 28 0
195 TCC 78 * 05 35 16.863300 -05 23 07.03118     20.63     ~ 17 0
196 COUP 841 * 05 35 16.88 -05 22 10.2         19.101 ~ 13 0
197 Parenago 1886 Em* 05 35 16.8916564433 -05 22 22.442365401   16.263 15.023   12.348 M0 33 0
198 MLLA 512 * 05 35 16.9100 -05 22 55.100           ~ 8 0
199 [BOM2000] d170-249 Y*O 05 35 16.91 -05 22 49.0 15.882 16.353 16.446   14.777 M0 45 1
200 COUP 843 * 05 35 16.9100 -05 22 35.200           ~ 9 0
201 COUP 842 * 05 35 16.9400 -05 22 20.700     20.87     K7 16 0
202 MLLA 264 * 05 35 16.96486 -05 23 59.6786           ~ 5 0
203 Parenago 1894 Y*O 05 35 16.97 -05 23 37.0 15.006 14.944 14.492   12.593 M2e 75 0
204 Parenago 1888 Y*O 05 35 16.9772755651 -05 23 00.968295134   16.348 15.206   12.509 M0 39 0
205 V* V1333 Ori BY* 05 35 17.0063771143 -05 22 33.031992586   15.634 14.509   12.194 K0-K2 39 0
206 [BOM2000] d171-340 Y*O 05 35 17.04 -05 23 39.7   12.9     13.224 K8e 47 1
207 V* V2299 Ori Or* 05 35 17.06 -05 23 34.2 14.962 14.224 13.322   11.118 K1 68 0
208 COUP 862 * 05 35 17.06 -05 22 50.6   13.5     13.880 M1 27 0
209 [LRY2000] 189 IR 05 35 17.111 -05 22 12.13           ~ 1 0
210 NAME tet01 Ori D2 * 05 35 17.16750 -05 23 17.0013           ~ 9 0
211 * tet01 Ori D Y*O 05 35 17.2574309230 -05 23 16.567215876 6.08 6.79 6.70 6.40 6.20 B1.5Vp 304 0
212 COUP 875 * 05 35 17.3400 -05 22 21.200           ~ 8 0
213 HD 37024 Or* 05 35 17.3543049827 -05 22 35.810670025     16.29   13.91 K0.7 53 0
214 COUP 878 Y*O 05 35 17.3566 -05 22 45.956           ~ 13 0
215 COUP 879 * 05 35 17.37338 -05 23 04.8794           M4-M6 20 0
216 2MASS J05351738-0524001 Y*O 05 35 17.3874136212 -05 24 00.261193418   12.6 18.79   16.326 K2-K7 26 0
217 COUP 874 * 05 35 17.406 -05 22 03.90           ~ 13 0
218 MLLA 323 * 05 35 17.407 -05 23 41.87           M2e 9 0
219 COUP 884 Y*O 05 35 17.42 -05 22 51.8     18.71   14.898 M0-M1 23 0
220 [H97b] 9178 Y*O 05 35 17.421 -05 23 41.67           ~ 27 0
221 COUP 885 * 05 35 17.45 -05 23 21.0     15.82   12.967 K7-K8e 27 0
222 PSH 186 * 05 35 17.53 -05 22 56.3           ~ 8 0
223 [LRY2000] 204 Y*O 05 35 17.54463 -05 23 55.0485           ~ 15 0
224 COUP J053517.5-052200 Y*O 05 35 17.5500 -05 22 00.300           ~ 7 0
225 V* V1510 Ori Or* 05 35 17.5577527626 -05 22 56.723187707   15.991 15.003   12.239 K7+M1 39 0
226 [ZRK2004] 176-325 Y*O 05 35 17.56 -05 23 24.8   12.3       ~ 41 0
227 [LRY2000] 209 IR 05 35 17.570 -05 24 09.17           ~ 1 0
228 MLLA 621 * 05 35 17.5800 -05 22 27.800           M 8 0
229 COUP 903 * 05 35 17.60 -05 22 08.3     20.55   15.807 M5.5e 16 0
230 COUP 904 * 05 35 17.6200 -05 22 12.600           ~ 8 0
231 MAX 134 * 05 35 17.6200 -05 21 53.900           ~ 8 0
232 COUP 906 * 05 35 17.64 -05 22 51.7     19.66   15.376 ~ 18 0
233 JW 558 Y*O 05 35 17.65 -05 23 40.5 16.251 15.348 15.343   14.390 M5.9e 66 0
234 MLLA 622 * 05 35 17.658 -05 22 27.60           ~ 3 0
235 COUP 910 Em* 05 35 17.735 -05 23 14.82   16.210 15.286   12.706 ~ 16 0
236 MAX 136 Ir* 05 35 17.74 -05 23 42.1         16.430 M3 20 0
237 MLLA 325B IR 05 35 17.741 -05 23 41.33           ~ 2 1
238 COUP 913 * 05 35 17.75 -05 23 43.8     19.93   15.369 M5.5 23 0
239 COUP 909 * 05 35 17.75 -05 22 30.7           ~ 16 0
240 Parenago 1912 * 05 35 17.789 -05 23 15.59   16.210 15.286   12.706 M0 36 0
241 MAX 138 V* 05 35 17.80 -05 23 03.7     15.994   13.652 K8 29 0
242 COUP 920 * 05 35 17.8300 -05 22 19.600           ~ 8 0
243 MLLA 495 * 05 35 17.83173 -05 22 58.0079           M4 12 0
244 MAX 139 Y*O 05 35 17.8711 -05 22 02.805           ~ 11 0
245 COUP J053517.8-052153 Y*O 05 35 17.885 -05 21 53.66           ~ 5 0
246 MLLA 345B * 05 35 17.89 -05 23 34.8           ~ 9 1
247 [MRD2012] 446 Ir* 05 35 17.94 -05 23 35.0     20.93   14.964 M0e 22 0
248 V* MT Ori Or* 05 35 17.9484704886 -05 22 45.471640008 14.524 13.208 12.229   10.063 K2 90 0
249 [LRY2000] 228 IR 05 35 17.961 -05 23 53.71           ~ 1 0
250 [LRY2000] 231 IR 05 35 18.010 -05 22 18.37           ~ 1 0
251 2MASS J05351802-0522052 EB* 05 35 18.0305971884 -05 22 05.395532385     19.06   14.694 K0-K3 28 0
252 V* V2321 Ori Or* 05 35 18.040 -05 24 02.93   17.144 17.922   15.061 M4-M5.5e 28 0
253 COUP 943 * 05 35 18.05 -05 24 01.0   17.825 16.845   13.847 M4-M5e 23 0
254 GMR 19 Y*O 05 35 18.05 -05 23 30.7           ~ 37 0
255 [LRY2000] 237 IR 05 35 18.079 -05 22 47.33           ~ 1 0
256 MAX 145 * 05 35 18.0800 -05 23 01.800           M9 13 0
257 [BOM2000] d182-332 Y*O 05 35 18.1900 -05 23 31.550           M6 23 0
258 V* V2325 Ori Or* 05 35 18.2067193250 -05 23 35.905759805 16.366 14.920 13.923   11.431 M0 39 0
259 CXOONC J053518.2-052346 * 05 35 18.208 -05 23 46.31           ~ 14 0
260 COUP 953 * 05 35 18.2400 -05 22 06.300           ~ 7 0
261 MAX 150 Y*O 05 35 18.2457511593 -05 23 15.611511284   13.2 16.412   13.933 M2 34 0
262 COUP 954 * 05 35 18.27 -05 23 07.4     17.383   15.090 M4 26 0
263 V* V1336 Ori Fl* 05 35 18.32 -05 24 04.8   12.7 19.46   14.649 M3 44 0
264 V* V1229 Ori Or* 05 35 18.3727420 -05 22 37.429392 15.941 14.257 13.251   10.987 K0 77 0
265 [LRY2000] 246 IR 05 35 18.384 -05 22 40.33           ~ 1 0
266 [MRD2012] 467 * 05 35 18.468 -05 24 06.87     18.34   13.589 M3e 26 0
267 COUP 980 * 05 35 18.48 -05 23 29.3     21.05   15.462 M0 18 0
268 MLLA 267 * 05 35 18.510 -05 23 57.75           ~ 9 0
269 [LRY2000] 251 IR 05 35 18.522 -05 23 47.96           ~ 1 0
270 MLLA 496 * 05 35 18.5300 -05 22 58.100           ~ 8 0
271 COUP 979 * 05 35 18.58231 -05 22 30.9591     23.80     ~ 14 0
272 V* AF Ori Or* 05 35 18.6662798791 -05 23 13.945021737         12.526 K2-K5e 47 0
273 COUP 987 * 05 35 18.6796377684 -05 23 56.445239205     19.07   15.098 K8-M0e,M1e 16 0
274 MLLA 252 IR 05 35 18.691 -05 24 02.02           ~ 2 0
275 V* V2336 Ori Or* 05 35 18.7046195630 -05 22 56.847269340     15.466   12.640 K5+M2 38 0
276 COUP 992 * 05 35 18.7582923802 -05 22 02.156524139     17.45   13.774 M2.5 24 0
277 MLLA 640B * 05 35 18.81 -05 22 23.3           ~ 9 1
278 COUP 998 * 05 35 18.83 -05 22 23.0         16.111 ~ 18 0
279 ISOY J053518.84-052223.2 * 05 35 18.8452 -05 22 23.276           ~ 14 0
280 COUP 1000 Y*O 05 35 18.8758831244 -05 23 28.866001060   13.0 18.84   14.673 M0e 32 0
281 COUP 999 * 05 35 18.8800 -05 23 07.200           ~ 10 0
282 COUP 1008 * 05 35 18.9532851458 -05 22 18.771192753     17.416   14.499 K7 28 0
283 COUP 1009 * 05 35 18.9700 -05 23 22.000           ~ 11 0
284 [FRM2016] 429 Y*O 05 35 19.03915 -05 22 50.6055           M0 10 0
285 V* V1337 Ori Or* 05 35 19.0673080853 -05 23 49.671315220   13.1 16.108   13.852 K2 37 0
286 MLLA 454 * 05 35 19.070 -05 23 07.52           ~ 8 0
287 COUP 1010 * 05 35 19.1100 -05 23 06.300           ~ 13 0
288 Parenago 1928 Y*O 05 35 19.1216185726 -05 23 27.086593775 16.352 16.391 16.138   13.743 K8 38 0
289 COUP 1018 * 05 35 19.134 -05 22 34.36     22.40   17.122 ~ 13 0
290 COUP 1023 Em* 05 35 19.2128226301 -05 22 50.684661096     17.099   13.882 K5 36 0
291 CXOONC J053519.3-052306 Y*O 05 35 19.3800 -05 23 06.500           ~ 11 0
292 COUP 1032 * 05 35 19.45 -05 22 21.7   14.0 20.99   16.151 M3.5 19 0
293 [LRY2000] 274 IR 05 35 19.495 -05 23 39.92           ~ 1 0
294 V* V2354 Ori Or* 05 35 19.6137722672 -05 23 57.343258422   17.280 16.478   14.205 K8 32 0
295 COUP 1043 * 05 35 19.620 -05 23 03.76           M7.5 11 0
296 COUP 1052 * 05 35 19.6800 -05 22 34.200           ~ 8 0
297 2MASS J05351981-0522216 Y*O 05 35 19.82 -05 22 21.6 16.740 17.342 16.955   14.641 M2.1e 35 0
298 2MASS J05351984-0523513 * 05 35 19.845 -05 23 51.33           M7 9 0
299 2MASS J05351988-0522069 * 05 35 19.883 -05 22 06.95           ~ 6 0
300 COUP 1064 * 05 35 19.89 -05 24 01.6     19.60   15.182 M2 14 0
301 MLLA 741 Y*O 05 35 19.9603 -05 21 54.021           ~ 10 0
302 [LRY2000] 284 IR 05 35 19.987 -05 23 28.94           ~ 1 0
303 COUP 1063 * 05 35 20.00 -05 22 32.8         17.863 ~ 15 0
304 COUP 1073 * 05 35 20.06 -05 22 26.4   13.5 20.69   15.884 M5 21 0
305 [LRY2000] 286 IR 05 35 20.119 -05 23 04.62           ~ 1 0
306 2MASS J05352017-0523085 Y*O 05 35 20.176 -05 23 08.51         15.023 M2 27 0
307 2MASS J05352012-0522281 Y*O 05 35 20.18 -05 22 28.3     21.81   16.397 M3 23 0
308 Parenago 1959 *iN 05 35 20.3983262652 -05 22 13.636779333   17.885 16.618   13.149 K 29 0
309 MLLA 366B * 05 35 20.423 -05 23 29.79           ~ 10 1
310 V* V1520 Ori Or* 05 35 20.454 -05 23 29.77   17.572 15.912   12.924 M0+M3.5 44 0
311 MLLA 361 * 05 35 20.503 -05 23 31.29           ~ 9 0
312 MAX 160 * 05 35 20.516 -05 23 23.04           ~ 10 0
313 [LRY2000] 295 IR 05 35 20.626 -05 22 41.37           ~ 1 0
314 V* V2370 Ori Or* 05 35 20.6314419202 -05 22 55.690007703   14.8     16.445 M: 21 0
315 2MASS J05352063-0522455 Y*O 05 35 20.6412015151 -05 22 45.555957481   14.8 19.80   15.729 M1 27 0
316 [MRD2012] 493 * 05 35 20.6767235648 -05 23 53.236510430   12.9 18.2   13.810 M4-M6e 26 0
317 MLLA 604 Ir* 05 35 20.7135532867 -05 22 31.472682651         15.818 M2 16 0
318 [LRY2000] 299 IR 05 35 20.757 -05 22 39.59           ~ 1 0
319 Parenago 1958 Y*O 05 35 20.7690540894 -05 21 55.106895801   16.813 15.946   13.335 M0 29 0
320 [LRY2000] 301 IR 05 35 20.775 -05 22 36.35           ~ 1 0
321 [OW94] 209-322 * 05 35 20.9153100998 -05 23 21.831043194     19.40   15.088 M0 22 0
322 COUP 1131 * 05 35 20.98 -05 23 54.7     21.02   15.410 ~ 16 0
323 [LRY2000] 304 IR 05 35 20.999 -05 22 54.45           ~ 1 0
324 MLLA 749 * 05 35 21.00203 -05 21 52.3008           ~ 4 1
325 2MASS J05352103-0522250 Y*O 05 35 21.032 -05 22 25.03         15.806 ~ 23 0
326 COUP 1129 * 05 35 21.04 -05 22 22.8     22.01   16.636 M3: 14 0
327 V* V1399 Ori Or* 05 35 21.0492702938 -05 23 48.989001884 14.154 13.231 12.376   10.605 G8 54 0
328 [LRY2000] 309 IR 05 35 21.108 -05 22 50.36           ~ 1 0
329 MLLA 262 Y*O 05 35 21.16 -05 23 59.2         16.420 M3:: 12 0
330 COUP 1138 * 05 35 21.16 -05 23 33.1     20.57   15.535 M6 20 0
331 V* V2374 Ori Or* 05 35 21.2226000179 -05 22 00.163055944     19.59   15.332 ~ 21 0
332 COUP J053521.2-052316 Y*O 05 35 21.239 -05 23 16.95           ~ 6 0
333 V* V2375 Ori Or* 05 35 21.2465977314 -05 22 59.522678791   19.068 18.244   14.850 M3 36 0
334 [LRY2000] 315 IR 05 35 21.268 -05 22 09.29           ~ 1 0
335 COUP 1149 * 05 35 21.295 -05 23 46.18     16.26     K7 17 0
336 [DRH2012] 220 * 05 35 21.30 -05 23 46.1           ~ 10 0
337 COUP 1148 * 05 35 21.32 -05 22 15.6         16.239 M1.5 14 0
338 Parenago 1991 *iN 05 35 21.3276649043 -05 24 11.487044188     16.750 13.64 14.114 M0.5 29 0
339 2MASS J05352135-0523454 Y*O 05 35 21.356 -05 23 45.50     20.38   16.39 ~ 17 0
340 COUP 1147 * 05 35 21.370 -05 22 07.60           ~ 7 0
341 NGC 2024 Cl* 05 41 43 -01 50.5           ~ 1060 1
342 NGC 2168 OpC 06 08 54 +24 20.0           ~ 454 0
343 * alf Gem C BY* 07 34 37.4475372002 +31 52 10.181030942 11.60 10.56 9.27 7.69 6.67 M0.5VeFe-2 814 0
344 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 2971 0
345 V* CM Dra BY* 16 34 20.3299130309 +57 09 44.365524588   14.50 12.87 10.85 9.26 M4.5V 401 0

    Equat.    Gal    SGal    Ecl

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2020.02.17-20:36:51

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