Two prominent X-ray emission lines of highly charged iron have puzzled astrophysicists for decades because their measured and calculated brightness ratios always disagree. This hinders good determinations of plasma temperatures ...
General Physics
Jun 9, 2020
1
165
An international team of astronomers has conducted spectroscopic and photometric observations of a binary star known as 7 Vulpeculae. The new study, described in a paper published May 22 on arXiv.org, discloses more information ...
A team of U.S.-Canadian astronomers has conducted radial velocity observations of four binary white dwarf candidates. They report that two of them, designated WD 0311−649 and WD 1606+422, are apparently double-lined spectroscopic ...
Swedish and Japanese researchers have, after ten years, found an explanation to the peculiar emission lines seen in one of the brightest supernovae ever observed—SN 2006gy. At the same time they found an explanation for ...
Astronomy
Jan 23, 2020
9
1350
A team of astronomers of Leiden University and the University of Texas (Austin, United States) has discovered a new way to map distant galaxies. They did so by observing the fingerprint of oxygen in a distant galaxy, something ...
Astronomy
Jan 13, 2020
0
104
First all appears quiet. Suddenly, a bright flash lights up the telescope. In an instant, jets of super-heated plasma bloom against the blackness of space.
Space Exploration
Sep 24, 2019
8
52
CI Tau b is a paradoxical planet, but new research about its mass, brightness and the carbon monoxide in its atmosphere is starting to answer questions about how a planet so large could have formed around a star that's only ...
Astronomy
Jun 10, 2019
0
60
X-ray sources in the sky radiate "bar codes" revealing their properties. These bar codes consist of narrow peaks and troughs within the source's spectrum. The RGS instrument on the satellite XMM-Newton was built to find these ...
Astronomy
May 24, 2019
0
67
Magnetic fields are present in a large variety of stars across the Hertzsprung-Russell diagram, during all evolutionary stages from pre-main sequence stars, to main sequence stars and evolved stars, up to the final stages ...
Astronomy
Nov 26, 2018
3
10
Astronomers from Lund University in Sweden have now found the explanation to a recent mystery at the centre of the Milky Way galaxy: the high levels of scandium discovered last spring near the galaxy's giant black hole were ...
Astronomy
Oct 10, 2018
19
209
