New light curve analysis and period changes of the HW Vir-type binary system V1828 Aql

Nehir C., Bulut I.

NEW ASTRONOMY, vol.92, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 92
  • Publication Date: 2022
  • Doi Number: 10.1016/j.newast.2021.101703
  • Journal Name: NEW ASTRONOMY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, INSPEC, Metadex, Civil Engineering Abstracts
  • Keywords: Stars: Binaries: Eclipsing, Stars: Fundamental parameters, Stars: Orbital period, Stars: Individual: V1828 Aql
  • Çanakkale Onsekiz Mart University Affiliated: Yes

Abstract

The new BVRI photometric observations of the HW Vir-type eclipsing binary system V1828 Aql (P = 0.11037399 days) were presented. From these measurements, 16 new eclipse times have been obtained. The light curves in BVRI colors and the radial curves were simultaneously analyzed by using the Wilson-Devinney method for the system parameters. The system consists of a very hot primary component (T-1 = 42000 K) and a cold secondary component (T-2 = 3077 +/- 250 K). The absolute dimensions were found as follows: (M-1 = 0.351 +/- 4 0.040 M-circle dot, M-2 = 0.095 +/- 0.011 M-circle dot, R-1 = 0.176 +/- 0.007 R-circle dot, R-2 = 0.140 +/- 0.007 R-circle dot, L-1 =86.91 +/- 6.76 L-circle dot and L-2 = 0.002 +/- 0.001 L-circle dot).