2001MNRAS.328..795D

Query : 2001MNRAS.328..795D

2001MNRAS.328..795D - Mon. Not. R. Astron. Soc., 328, 795-804 (2001/December-2)

Pismis 2: a poorly studied, intermediate-age open cluster.

DI FABRIZIO L., BRAGAGLIA A., TOSI M. and MARCONI G.

Abstract (from CDS):

We present CCD BVI photometry of the intermediate-age open cluster Pismis 2, covering from the brighter red giants to about 5mag below the main-sequence turn-off. The cluster is heavily reddened and is possibly affected by a differential reddening of ΔE(B-V)≃0.04-0.06.

Using the synthetic colour-magnitude diagram method, we estimate the distance modulus, (m-M)_0≃12.5-12.7, and age, τ≃1.1-1.2 Gyr, in a self-consistent way. The cluster probably contains a significant fraction of binary systems. The metallicity is most likely solar and the reddening E(B-V) ranges between 1.26 and 1.32 depending on the cluster region.


Abstract Copyright: The Royal Astronomical Society

Journal keyword(s): Hertzsprung-Russell (HR) diagram - open clusters and associations: general - open clusters and associations: individual: Pismis 2

CDS comments: p.797: stars PG 0918-S14 and S29, PG 1047-S12 and S15, PG 1323-S18 and S27 not identified

Simbad objects: 12

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Number of rows : 12
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 Berkeley 21 OpC 05 51 44.7 +21 48 36   12.26 11.1     ~ 130 0
2 NGC 2243 OpC 06 29 34.3 -31 16 58   10.12 9.4     ~ 298 0
3 GEN# +6.20003146 * 07 21 51.9331432800 +01 31 58.268682696 13.73 14.49 14.29     ~ 6 0
4 NGC 2506 OpC 08 00 02.3 -10 46 22   8.28 7.6     ~ 313 0
5 Cl Pismis 2 OpC 08 17 54.4 -41 40 27           ~ 50 0
6 NGC 2660 OpC 08 42 40.0 -47 11 59   9.05 8.8     ~ 164 0
7 PG 0918+029 HS* 09 21 28.2138172968 +02 46 02.254084824 11.975 13.056 13.327 13.456 13.615 sdB1VIIHe6 118 0
8 V* UY Sex HS* 10 50 02.8265487864 -00 00 36.879009588 12.063 13.184 13.474 13.606 13.769 sdO9VIIHe6 175 0
9 PG 1323-086 HS* 13 25 39.4669501176 -08 49 19.067387484 12.660 13.341 13.481 13.529 13.608 sdB3IHe8 144 1
10 PG 1633+099 HS* 16 35 24.0241690848 +09 47 49.891209036 13.215 14.205 14.396 14.481 14.609 sdB 113 0
11 NGC 6253 OpC 16 59 06.4 -52 42 39     10.2     ~ 209 0
12 NGC 7790 OpC 23 58 27.6 +61 12 33   9.18 8.5     ~ 286 0

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