• W. H. ELSANHOURY

Articles written in Journal of Astrophysics and Astronomy

• Photometric and kinematical analysis of Koposov 12 and Koposov 43 open clusters

We present a photometric and kinematical analysis of two poorly studied open clusters, Koposov 12 (FSR 802) and Koposov 43 (FSR 848), by using cross-matched data from PPMXL and Gaia DR2 catalogs. We used astrometric parameters to identify 285 and 310 cluster members for Koposov 12 and Koposov 43, respectively. Using the extracted member candidates and isochrone fitting to near-infrared ($J, H$, and $K_s$) and Gaia DR2 bands ($G, G_{BP}$, and $G_{RP}$), and color-magnitude diagrams (CMDs), we have estimated ages: $\log({\rm age} \ {\rm yr}^{-1}) = 9.00 \pm 0.20$ and $9.50 \pm 0.20$ and distances $d = 1850 \pm 43$ and $2500 \pm 50$ pc for Koposov 12 and Koposov 43, respectively, assuming solar metallicity ($Z = 0.019$). The estimated masses of the cluster derived using the initial mass function and synthetic (CMD) are $364 \pm 19$ and $352\pm 19 \ M_{\odot}$, respectively. We have also computed their velocity ellipsoid parameters based on ($3\times 3$) matrix elements ($\mu_{ij}$).

• # Journal of Astrophysics and Astronomy

Volume 42, 2021
All articles
Continuous Article Publishing mode

• # Continuous Article Publication

Posted on January 27, 2016

Since January 2016, the Journal of Astrophysics and Astronomy has moved to Continuous Article Publishing (CAP) mode. This means that each accepted article is being published immediately online with DOI and article citation ID with starting page number 1. Articles are also visible in Web of Science immediately. All these have helped shorten the publication time and have improved the visibility of the articles.

• # Editorial Note on Continuous Article Publication

Posted on July 25, 2019