Access Restriction

Author Srivastava, R. K.
Source Aryabhatta Research Institute of Observational Sciences (ARIES)
Content type Text
File Format PDF
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics
Subject Keyword SZ Arietis ♦ O-C diagram
Abstract A new period (P = 1.ᵈ7175405) of the eclipsing binary system SZ Arietis has been presented. Period changes in different portions of the O-C diagram, with new period, have been estimated.The total change in period (∆P) ranges from 3.64 х 10 ̄ ⁵ d to 4.24 х 10 ̄ ⁴ d, which is appreciably large. However, leaving the unusual value, the average period change comes out to be of the order of 6 х 10 ̄ ⁵ d. The period changes around the years 1903, 1943, and 1977 are apparent in the O-C diagrams. A sinusoidal variation is also visible in the O-C diagrams. which indicates that SZ Ari may be a three-body system, having a period of nearly 66 years.
Part of series ass168-201
Educational Use Research
Education Level UG and PG
Learning Resource Type Article