1999PASP..111..210P

Query : 1999PASP..111..210P

1999PASP..111..210P - Publ. Astron. Soc. Pac., 111, 210-216 (1999/February-0)

A photometric survey for low-mass members of IC 2391.

PATTEN B.M. and PAVLOVSKY C.M.

Abstract (from CDS):

A VRI photometric survey has been conducted in the young open cluster IC 2391 to identify candidate low-mass cluster members. Photometry for some 10,725 objects, ranging from V=10 to V=20, were extracted from 21 CCD fields positioned within 1° of the nominal cluster center [α2000=08h42m, δ2000=-53°00']. Seventeen stars have been identified as candidate cluster members with (V-I) colors ranging from 2.78 to 3.72. The masses of these candidate members are estimated to range from 0.25 to 0.09 M☉. If these stars are indeed IC 2391 members, they will help to rectify an apparent deficit of low-luminosity stars in the luminosity function of this cluster.

Abstract Copyright: ∼

Journal keyword(s): Galaxy: Open Clusters and Associations: Individual: Alphanumeric: IC 2391 - Stars: Late-Type - Stars: Low-Mass, Brown Dwarfs - Stars: Luminosity Function, Mass Function - Stars: Pre-Main-Sequence

Nomenclature: Fig. 4, Table 2: Cl* IC 2391 PP NN (Nos 1-17).

Simbad objects: 20

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Number of rows : 20
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* IC 2391 PP 12 * 08 38 24.3089316456 -53 15 04.634625420     18.49     ~ 13 0
4 Cl* IC 2391 CTIO 49 * 08 38 27.1230289296 -53 25 10.445006604     19.05     ~ 23 0
5 Cl* IC 2391 PP 2 * 08 39 05.6723106696 -53 21 44.583788232     17.09     ~ 14 0
6 Cl* IC 2391 PP 7 * 08 39 29.5789052952 -53 21 04.419342396     17.21     M5 6 0
7 Cl* IC 2391 PP 14 * 08 40 30.3113732688 -53 11 30.924919680     19.14     ~ 15 0
8 Cl* IC 2391 PP 5 * 08 40 41.7510688464 -53 08 34.773844992     18.63     ~ 13 0
9 Cl* IC 2391 CTIO 93 * 08 40 55.1932091352 -52 34 50.038826952     18.86     ~ 22 0
10 IC 2391 OpC 08 41 17.5 -53 03 00           ~ 871 0
11 Cl* IC 2391 PP 10 * 08 41 25.9886215080 -53 26 34.761670440     18.19     ~ 22 0
12 Cl* IC 2391 CTIO 103 * 08 41 43.9464528910 -53 14 07.094175104     17.74     ~ 11 0
13 Cl* IC 2391 PP 1 * 08 41 44.6370337968 -52 49 06.802539204     17.52     ~ 1 0
14 Cl* IC 2391 PP 13 * 08 43 13.0132356024 -53 29 08.119387680     17.64     ~ 8 0
15 Cl* IC 2391 PP 17 * 08 43 15.1304612040 -52 58 22.907000316     19.65     M5.5 18 0
16 Cl* IC 2391 D 155 * 08 43 38.4176208504 -52 50 55.141261764     17.99     ~ 27 0
17 Cl* IC 2391 PP 9 * 08 43 39.3509432784 -53 07 55.641782352   18.38 18.08 16.87 14.82 ~ 13 0
18 Cl* IC 2391 PP 3 * 08 43 41.0493486600 -53 37 12.710386524     17.17     ~ 5 0
19 Cl* IC 2391 PP 11 * 08 44 04.6456939320 -53 00 01.648148472     18.48     ~ 14 0
20 Cl* IC 2391 PP 4 * 08 46 13.98 -52 20 59.6     18.52     ~ 1 0

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