English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

UBVI CCD photometry is obtained for the open clusters NGC 4609 and Hogg 15 inCrux. For NGC 4609, CCD data are presented for the first time. From newphotometry we derive the reddening, distance modulus and age of each cluster -NGC 4609 : E(B-V) = 0.37 +/- 0.03, V_0 - M_V = 10.60 +/- 0.08, log tau = 7.7+/- 0.1; Hogg 15 : E(B-V) = 1.13 +/- 0.11, V_0 - M_V = 12.50 +/- 0.15, log tau<= 6.6. The young age of Hogg 15 strongly implies that WR 47 is a member of thecluster. We have also determined the mass function of these clusters and haveobtained a normal slope (Gamma = -1.2 +/- 0.3) for NGC 4609 and a somewhatshallow slope (Gamma = -0.95 +/- 0.5) for Hogg 15.

UBVI CCD Photometry of the Open Cluster NGC 4609 and Hogg 15