CCD UBV photometry of the open cluster NGC 6819
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F16%3A00088052" target="_blank" >RIV/00216224:14310/16:00088052 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s10509-016-2707-2" target="_blank" >http://dx.doi.org/10.1007/s10509-016-2707-2</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10509-016-2707-2" target="_blank" >10.1007/s10509-016-2707-2</a>
Alternative languages
Result language
angličtina
Original language name
CCD UBV photometry of the open cluster NGC 6819
Original language description
We present the results of CCD UBV observations of the open cluster NGC 6819. We calculated the stellar density profile in the cluster's field to determine the structural parameters of NGC 6819. Using the existing astrometric data, we calculated the probabilities of the stars being physical members of the cluster, and used these objects in the determination of the astrophysical parameters of NGC 6819. We inferred the reddening and metallicity of the cluster as E(B-V) = 0.130 +/- 0.035 mag and [Fe/H] = +0.051 +/- 0.020 dex, respectively, using the U-B vs B-V two-colour diagram and UV excesses of the F-G type main-sequence stars. We fit the colour-magnitude diagrams of NGC 6819 with the PARSEC isochrones and derived the distance modula, distance and age of the cluster as mu(V) = 12.22 +/- 0.10 mag, d = 2309 +/- 106 pc and t = 2.4 +/- 0.2 Gyr, respectively. The parameters of the galactic orbit estimated for NGC 6819 indicate that the cluster is orbiting in a slightly eccentric orbit of e = 0.
Czech name
—
Czech description
—
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
—
Result continuities
Project
<a href="/en/project/GP14-26115P" target="_blank" >GP14-26115P: Towards a uniform metallicity scale for open clusters</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astrophysics and Space Science
ISSN
0004-640X
e-ISSN
—
Volume of the periodical
361
Issue of the periodical within the volume
4
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
14
Pages from-to
"nestrankovano"
UT code for WoS article
000372553700011
EID of the result in the Scopus database
—