Doppler beaming factors in binary stars : J/ApJ/972/151


Authors : Zheng C. orcid , Huang Y., Liu J. (hide) , Huang Y., Liu J. et..al

Bibcode : 2024ApJ...972..151Z (ADS) (Simbad) (Objects) (hide)

CDS Keywords : Models, atmosphere; Photometry, SDSS; Photometry, UBVRI; Photometry, ultraviolet; Stars, double and multiple
UAT : Astronomical models, Stellar atmospheres, Optical astronomy, Sloan photometry, Infrared photometry, Optical astronomy, Broad band photometry, Ultraviolet photometry, Multiple stars

Model (MC)

Records :

Inserted into VizieR : 23-Dec-2024
Last modification : 24-Feb-2025

Direct Method to Compute Doppler Beaming Factors in Binary Stars. (2024)

Keywords : Binary stars - Radial velocity - Computational methods

Abstract:The Doppler beaming effect, induced by the reflex motion of stars, introduces flux modulations and serves as an efficient method to photometrically determine mass functions for a large number of close binary systems, particularly those involving compact objects. In order to convert observed beaming-flux variations into a radial-velocity curve, precise determination of the beaming factor is essential. Previously, this factor was calculated as a constant, assuming a power-law profile for stellar spectra. In this study, we present a novel approach to directly compute this factor. Our new method not only simplifies the computation, especially for blue bands and cool stars, but also enables us to evaluate whether the relationship ...(more)
Abstract: (hide)
Zheng et al.(2024ApJ...972..151Z) propose a new and direct method to compute beaming factors under different filters. Here we present a pre-computed beaming factor library for quick reference. These factors are generated with the python module BeamingFactor for CSST,Gaia, SDSS, UBVRI, TESS and Kepler filter systems. For easier downloading or python code that generates this library, please refer to https://github.com/shift-method/beamingfactor.
Zheng Chuanjie, zhengchuanjie(at)nao.cas.cn

                
Catalogue provenance