Using data from ESA’s XMM-Newton and NASA’s Swift spacecraft, astronomers have conducted a detailed temporal and spectral study of an eclipsing supergiant X-ray binary known as IGR J18027–2016. Results of this research provide important insights into the properties of this system. The study was published December 28 on arXiv.org. Source: https://phys.org/news/2021-01-supergiant-eclipsing-binary-igr-j180272016.html…
Tag: XMM-Newton
Astronomers investigate an ultraluminous X-ray source in NGC 5055
Using the Chandra and XMM-Newton spacecraft, astronomers from the Nicolaus Copernicus Astronomical Center in Warsaw, Poland, have investigated an ultraluminous X-ray source (ULX) in the galaxy NGC 5055. The study, detailed in a paper published August 5 on the arXiv preprint server, provides more insight into the properties of this source. Source: https://phys.org/news/2020-08-astronomers-ultraluminous-x-ray-source-ngc.html…
CTCV J2056-3014 is an unusual polar, study finds
Astronomers have investigated a nearby cataclysmic variable system known as CTCV J2056-3014 using ESA’s XMM-Newton satellite. Results of the study, presented in a paper published July 28 on the arXiv pre-print repository, indicate that the object is an unusual accretion-powered, intermediate polar containing an extremely fast-spinning white dwarf. Source: https://phys.org/news/2020-08-ctcv-j2056-unusual-polar.html…
Rethinking cosmology: Universe expansion may not be uniform (Update)
Astronomers have assumed for decades that the Universe is expanding at the same rate in all directions. A new study based on data from ESA’s XMM-Newton, NASA’s Chandra and the German-led ROSAT X-ray observatories suggests this key premise of cosmology might be wrong. Source: https://phys.org/news/2020-04-basic-assumption-universe.html…
Physicists Disagree Over New Dark Matter Claim
sciencehabit shared this article from Science magazine: For decades, astrophysicists have thought some sort of invisible dark matter must pervade the galaxies and hold them together, although its nature remains a mystery. Now, three physicists claim their observations of empty patches of sky rule out one possible explanation of the strange substance — that it is made out of unusual particles…