2005A&A...429..607O

Query : 2005A&A...429..607O

2005A&A...429..607O - Astronomy and Astrophysics, volume 429607-612 (2005/1-2)

The old open clusters Berkeley 36, Berkeley 73 and Biurakan 13 (Berkeley 34).

ORTOLANI S., BICA E., BARBUY B. and ZOCCALI M.

Abstract (from CDS):

BV photometry of the faint open clusters Berkeley 36, Berkeley 73 and Biurakan 13 are studied. For these clusters no colour-magnitude analyses were previously available. The colour-magnitude Diagrams indicate that they are all old open clusters. The derived ages are ∼4Gyr for Berkeley 36, and ∼2.3Gyr for both Berkeley 73 and Biurakan 13. The clusters are not very reddened, with E(B-V)=0.25, 0.10 and 0.30 respectively for Berkeley 36, Berkeley 73 and Biurakan 13. Berkeley 36 and Berkeley 73 are located at a distance from the Galactic center of ∼10kpc, while Biurakan 13 is much farther, at 15kpc. A peak in the age distribution appears at 5Gyr suggesting a distinct star forming event in the disk.

Abstract Copyright: ∼

Journal keyword(s): Galaxy: open clusters and associations: individual: Berkeley 36, Berkeley 73, Biurakan 13 - stars: Hertzsprung-Russell (HR) and C-M

VizieR on-line data: <Available at CDS (J/A+A/429/607): table2a.dat table2b.dat table2c.dat>

Nomenclature: Table 2a: Cl* Berkeley 36 OBB NNNN (Nos 1-1274). Table 2b: Cl* Berkeley 73 OBB NNN (Nos 1-367). Table 2c: Cl* Biurakan 13 OBB NNN (Nos 1-999).

Errata: erratum vol. 439, p. 1135 (2005)

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

CDS comments: Paragraph 1 wrong coordinates for Cl Berkeley 73 : the coordinates are those of Cl VDBH 73.

Simbad objects: 4

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Number of rows : 4
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 73 OpC 06 22 04.7 -06 19 13           ~ 66 0
2 Cl Berkeley 34 OpC 07 00 22.7 -00 14 28           ~ 28 0
3 Cl Berkeley 36 OpC 07 16 24.7 -13 12 02           ~ 51 0
4 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0

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