Polish astronomers have performed photometric observations of a short-period variable star known as NSVS 2983201. They have found that the object is a contact binary system with a mass ratio of about 0.36. The finding was ...
Ph.D. candidate Cui Yingzhen and Prof. Meng Xiangcun from the Yunnan Observatories of the Chinese Academy of Sciences (CAS) performed hydrodynamic simulations on the common-envelope wind model of Type Ia supernovae (SNe Ia), ...
Astronomy
Dec 20, 2022
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Using the AstroSat spacecraft, Indian astronomers have investigated a high mass X-ray binary system known as LMC X–4. Results of the study, presented December 2 on arXiv.org, yield crucial insights into the properties of ...
Indian astronomers have performed long-term radio observations of a "black widow" millisecond pulsar known as PSR J1544+4937. Results of the observational campaign, published November 25 on the arXiv pre-print server, shed ...
Binary systems are ideal for accurately identifying basic physical parameters, such as mass, radius and luminosity, of stars. Pulsating variable stars are especially significant, as they offer means for detecting stellar ...
Astronomy
Nov 25, 2022
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Using NASA's Transiting Exoplanet Survey Satellite (TESS), astronomers have detected a new low-mass, pre-main-sequence binary system. The newfound binary, designated 2M1222−57, contains two stars the size of the sun but ...
Researchers led by Ph.D. candidate Guo Yanjun from Yunnan Observatories of the Chinese Academy of Sciences (CAS) have explored the dependency of the intrinsic binary fraction on derived stellar effective temperature, metallicity ...
Astronomy
Nov 14, 2022
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28
Using NASA's Swift telescope and the Neutron star Interior Composition Explorer (NICER) instrument onboard the International Space Station, Indian astronomers have inspected timing and spectral properties of an X-ray transient ...
In July, a puzzling new image of a distant extreme star system surrounded by surreal concentric geometric rungs had even astronomers scratching their heads. The picture, which looks like a kind of "cosmic thumbprint," came ...
Astronomy
Oct 22, 2022
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Indian astronomers have employed NASA's NuSTAR spacecraft to inspect an X-ray pulsar known as 1E 1145.1-6141. Results of the observations deliver important insights into the properties and nature of this pulsar. The study ...
