Neutron stars are known to have rotation periods between about 1.4 ms to 30 seconds. The neutron star's density also gives it very high surface gravity, up to 7×1012 m/s2 with typical values of a few ×1012 m/s2 (that is more than 1011 times of that of Earth). One measure of ...
Margutti's team also benefited from the star's relative closeness to Earth. Even though it was nestled in the distant dwarf galaxy called CGCG 137-068, astronomers consider that to be "right around the corner." "Two hundred million light years is close for us, by the way," Margutti said...
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All else being equal, the closest GRBs provide the most stringent constraints; however, the non-thermal afterglow emission— the strength of which can vary from burst to burst—must also be relatively weak, so that it does not outshine the thermal kilonova. The NIR excess observed following ...
The origin of the rare-earth abundance peak at A∼165 is debated, and possibly it is related to nuclear structure effects. These aspects makes the understanding of the region important beyond the field of nuclear physics. In 2017, gravitational waves were detected following a neutron-star ...
By timing when the pulses arrived at Earth, we found that PSR J1325-6253 is in a small orbit of 1.81 d. Its orbit deviates from a circularity with one of the lowest orbital eccentricities known for a DNS system (e=0.064). The elliptical orbit advances its point of closest approach (per...
Earth. As with the Earth's atmosphere, the extent of an atmosphere on a neutron star is proportional to the atmospheric temperature and inversely proportional to the surface gravity. The temperature is estimated to be almost two million degrees, much hotter than the Earth's atmosphere. However,...
Using a pioneering method, researchers from the Astronomy and Astrophysics Group of the UPC and the Canary Islands Institute of Astrophysics (IAC) have found a neutron star of about 2.3 solar masses—one of the most massive ever detected. The study was p
We note that the time profile of GRB190425 has a lot in common with the profile of the GRB170817A burst accompanying the GW170817 event; that both the NS mergers were the closest (30 black hole merger events recorded to the moment by these detectors. No hard X-ray flares were detected ...
Scientists seek to use quantum materials—those that have correlated order at the subatomic level—for electronic devices, quantum computers, and superconductors. Quantum materials owe many of their properties to the physics that is occurring on the smal