2008MNRAS.388..444T

Query : 2008MNRAS.388..444T

2008MNRAS.388..444T - Mon. Not. R. Astron. Soc., 388, 444-456 (2008/July-3)

Galactic clusters with associated Cepheid variables - VII. Berkeley 58 and CG Cassiopeiae.

TURNER D.G., FORBES D., ENGLISH D., LEONARD P.J.T., SCRIMGER J.N., WEHLAU A.W., PHELPS R.L., BERDNIKOV L.N. and PASTUKHOVA E.N.

Abstract (from CDS):

Photoelectric, photographic and CCD UBV photometry, spectroscopic observations and star counts are presented for the open cluster Berkeley 58 to examine a possible association with the 4.37d Cepheid CG Cas. The cluster is difficult to separate from the early-type stars belonging to the Perseus spiral arm, in which it is located, but has reasonably well-defined parameters: an evolutionary age of ∼108yr, a mean reddening of E(B - V) (B0) = 0.70±0.03 s.e. and a distance of 3.03±0.17kpc (V0-MV= 12.40±0.12 s.d.). CG Cas is a likely cluster coronal member on the basis of radial velocity, and its period increase of +0.170±0.014 s/yr and large light amplitude describe a Cepheid in the third crossing of the instability strip lying slightly blueward of strip centre. Its inferred reddening and luminosity are E(B - V) = 0.64±0.02 s.e. and <MV> = -3.06±0.12. A possible K supergiant may also be a cluster member.

Abstract Copyright: © 2008 The Authors. Journal compilation © 2008 RAS

Journal keyword(s): stars: evolution - Cepheids - open clusters and associations: individual: Berkeley 58

VizieR on-line data: <Available at CDS (J/MNRAS/388/444): table1.dat table3.dat table4.dat>

Nomenclature: Table 1: Cl* Berkeley 58 TFE NN (Nos 1-37). Table 3: Cl* Berkeley 58 TFE NNN (Nos 101-255). Table 4: Cl* Berkeley 58 TFE NNNN (Nos 1001-1411).

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 6

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Number of rows : 6
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 58 OpC 00 00 17.4 +60 56 28   10.39 9.7     ~ 72 0
2 V* V654 Cas EB* 00 00 20.6448851184 +60 59 43.121746320   11.36 10.96     B3 20 0
3 V* CG Cas cC* 00 00 59.2385245512 +60 57 32.432852268   12.70 11.28     F5 113 0
4 NGC 654 OpC 01 44 01.5 +61 53 06   7.34 6.5     ~ 206 0
5 NAME Per Arm PoG 03 30 +45.0           ~ 1672 0
6 NGC 7790 OpC 23 58 27.6 +61 12 33   9.18 8.5     ~ 286 0

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