2001A&A...367..211M

Query : 2001A&A...367..211M

2001A&A...367..211M - Astronomy and Astrophysics, volume 367211-217 (2001/2-3)

Proper motion of very low mass stars and brown dwarfs in the Pleiades cluster.

MORAUX E., BOUVIER J. and STAUFFER J.R.

Abstract (from CDS):

We report proper motion measurements for 25 very-low mass (VLM) star and brown dwarf (BD) candidates of the Pleiades cluster previously identified by Bouvier et al. (1998A&A...336..490B). Proper motions are measured with an accuracy of 9mas/yr, compared to an expected tangential motion of about 50mas/yr for Pleiades members. Of the 25 candidates, 15 have a membership probability of 95% or more and 7 are rejected as being field dwarfs. The 3 remaining candidates exhibit independent evidence for membership (lithium absorption or long-term proper motion). From the firm identification of Pleiades VLM and BD members, the cluster's substellar mass function is revised to dN/dM∝M–0.5 in the mass range from 0.04 to 0.3M☉.

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

Simbad objects: 27

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Number of rows : 27
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 V* V1186 Tau BY* 03 42 26.8135312248 +24 50 20.595026616           ~ 11 0
2 Cl* Melotte 22 PLIZ 8 LM* 03 43 00.1664960928 +24 43 52.633957620         18.80 M7.9 24 0
3 Cl* Melotte 22 CFHT 14 LM* 03 43 14.200 +24 23 21.30           ~ 6 0
4 Cl* Melotte 22 PLIZ 16 LM* 03 43 40.28880 +24 30 11.3976         19.50 M8.3 22 0
5 Cl* Melotte 22 PLIZ 11 LM* 03 44 12.6893899704 +25 24 35.024892084           ~ 6 0
6 Cl* Melotte 22 CFHT 10 LM* 03 44 32.3222638968 +25 25 18.175050156         17.592 M6.5 20 0
7 Cl* Melotte 22 PLIZ 9 LM* 03 44 35.1625882416 +25 13 43.002580476         18.66 M9.3 18 0
8 Cl* Melotte 22 CFHT 19 LM* 03 45 33.1643000928 +25 34 30.052938432           ~ 5 0
9 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
10 Cl* Melotte 22 BPL 152 LM* 03 47 39.0098259096 +24 36 22.395849876       20.17 17.91 M6.0 33 0
11 Cl* Melotte 22 CFHT 5 LM* 03 48 44.6884267152 +24 37 23.627958744         17.02 M5.5 32 0
12 Cl* Melotte 22 BRB 10 LM* 03 49 15.1194644712 +24 36 22.638966408         17.71 M6.5 32 0
13 Cl* Melotte 22 PLIZ 12 LM* 03 51 25.5680723568 +23 45 21.465842004         19.00 M8.0 66 0
14 Cl* Melotte 22 BRB 1 LM* 03 51 51.5439834336 +23 34 49.370818908         16.10 M4.9 39 0
15 Cl* Melotte 22 BRB 8 LM* 03 52 05.8178078136 +24 17 31.213029912       19.32 17.34 M5.6 20 0
16 Cl* Melotte 22 PLIZ 3 LM* 03 52 06.7084395888 +24 16 00.643676448         18.02 M6.0 28 0
17 Cl* Melotte 22 CFHT 6 LM* 03 52 07.8718816512 +23 59 13.769184300           M6.7 10 0
18 Cl* Melotte 22 PLIZ 15 LM* 03 52 18.6548951688 +24 04 27.555121740           ~ 11 0
19 Cl* Melotte 22 BRB 2 LM* 03 52 44.2852984752 +23 54 15.158247624       18.57 16.61 M4.9 26 0
20 Cl* Melotte 22 BRB 5 LM* 03 52 51.7858923696 +23 33 48.283557264       18.600 16.60 ~ 24 0
21 Cl* Melotte 22 BRB 6 LM* 03 53 09.6294213576 +23 33 47.961228600       18.77 16.50 ~ 21 0
22 Cl* Melotte 22 BPL 283 LM* 03 53 23.1548800968 +23 19 20.148390372         18.34 ~ 18 0
23 Cl* Melotte 22 PLIZ 6 LM* 03 53 55.1153189928 +23 23 36.301442892         17.752 M8.0 26 0
24 Cl* Melotte 22 CFHT 26 LM* 03 54 01.39844 +24 44 46.8838           ~ 4 0
25 Cl* Melotte 22 PLIZ 20 LM* 03 54 05.32560 +23 33 59.7708         19.571 M9.0 16 0
26 Cl* Melotte 22 CFHT 22 LM* 03 54 59.43547 +23 58 08.1190           ~ 4 0
27 Cl* Melotte 22 BRB 13 LM* 03 55 12.5863618464 +23 17 37.640681016         18.62 M7.0 16 0

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