2005A&A...433..127M

Query : 2005A&A...433..127M

2005A&A...433..127M - Astronomy and Astrophysics, volume 433127-135 (2005/4-1)

An estimate of the time variation of the abundance gradient from planetary nebulae. II. Comparison with open clusters, Cepheids and young objects.

MACIEL W.J., LAGO L.G. and COSTA R.D.D.

Abstract (from CDS):

The temporal behaviour of the radial abundance gradients has important consequences for models of the chemical evolution of the Galaxy. We present a comparison of the time variation of the abundance gradients in the Milky Way disk as determined from a sample of planetary nebulae, open clusters, cepheids and young objects, such as stars in OB associations and HII regions. We conclude that the [Fe/H] gradients as measured in open cluster stars strongly support the time flattening of the abundance gradient as determined from O/H and S/H measurements in planetary nebulae. This conclusion is also supported by the cepheid variables, for which very accurate gradients and ages can be determined, and also by some recent estimates for OB stars and HII regions. It is estimated that the average flattening rate for the last 8Gyr is in the range 0.005-0.010dex/kpc/Gyr.

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Journal keyword(s): planetary nebulae: general - ISM: abundances - Galaxy: abundances - open clusters and associations: general - Galaxy: disk

Simbad objects: 1

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Number of rows : 1

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 29	OpC	06 53 03.6	+16 55 24		14.3				~	187	0

Query : 2005A&A...433..127M

Basic data :

Cl Berkeley 29 -- Open Cluster

OpC (2013A&A), Cl* (2020A&A,Cl,...), G (MCG,UGC,...)

06 53 03.6 +16 55 24 (Optical) [ ] E 2023A&A...674A..37G

06 50 10.0 +16 59 08 [ ]

197.9520 +07.9761 [ ]

0.151 -1.010 [0.021 0.025 90] C 2020A&A...633A..99C

V(km/s) 25.8 [0.3] / z(spectroscopic) 0.000086 [0.000001] / cz 25.80 [0.30] (Opt) A 2021A&A...651A..84M

0.023 [0.012] C 2020A&A...633A..99C

S: D ~

6.0 6.0 0 (~) D 2010A&A...516A...3K

B 14.3 [~] E ~

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`Cl Berkeley 29`	`MCG+03-18-002`	`UZC J065303.7+165544`	`Z 0650.2+1659`
`C 0650+169`	`UGC 3583`	`Z 85-13`	`[KPS2012] MWSC 1008`

References (187 between 1850 and 2026) (Total 187)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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Data at NED - NASA/IPAC Extragalactic Database : Cl Berkeley 29

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UGC 3583

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