The enigmatic variations of light in a binary system, located in Sagittarius constellation, could be explained by the presence of a variable gas disc around a hot star that revolves around a cooler star. These are the conclusions ...
Astronomy
Sep 2, 2020
0
13
The Sun is our star and has a profound influence on our planet, life, and civilization. By studying the magnetism on the Sun, we can understand its influence on Earth and minimize damage of satellites and technological infrastructure. ...
Astronomy
Sep 1, 2020
0
155
Solar filaments are large magnetic structures confining cool and dense plasma suspended in the hot and tenuous corona.
Astronomy
Aug 31, 2020
0
175
Previous studies on the formation and evolution of spiral galaxies might have been based on an incorrect assumption, suggests a team of researchers of Instituto de Astrofísica e Ciências do Espaço (IA).
Astronomy
Aug 27, 2020
1
300
Astronomers have used the GRAVITY instrument to study the immediate vicinity of a young star in more detail than ever before. Their observations confirm a thirty-year-old theory about the growth of young stars: the magnetic ...
Astronomy
Aug 27, 2020
132
626
A team of researchers from the Instituto de Astrofísica de Canarias (IAC) has, for the first time, detected constant infrared emission from winds produced during the eruption of a black hole in an X-ray binary.
Astronomy
Aug 27, 2020
8
1203
Using Apertif (APERture Tile In Focus), searching at a radio frequency of 1.4 GHz, researchers have found an intra-hour variable (IHV) source, described in the paper "Extreme intra-hour variability of the radio source J1402+5347 ...
Astronomy
Aug 21, 2020
0
23
Neutron stars are the smallest and densest astrophysical objects with visible surfaces in the Universe. They form after gravitational collapses of the iron nuclei of massive (with masses about ten solar masses) stars at the ...
Astronomy
Aug 17, 2020
0
16
The thermal structure of hot gas giant exoplanet atmospheres is likely to be inverted for the hottest planets, a class of planets known as ultra-hot Jupiters. This is the conclusion from astrophysicists based at the University ...
Astronomy
Aug 6, 2020
0
107
A study led by researchers at the Instituto de Astrofísica de Canarias (IAC) comparing the discs of several pairs of spiral galaxies, active and non-active, concludes that in the active discs, the rotational motion of the ...
Astronomy
Aug 3, 2020
1
238
