University of Toronto researcher Amanda Cook has found a way to use bright signals coming from across the universe to weigh the atmosphere of the Milky Way galaxy.
Astronomy
Mar 30, 2023
0
357
Using various radio telescopes, an international team of astronomers has performed deep low-frequency radio observations of a merging galaxy cluster Abell 2256. The observational campaign delivered more insights into the ...
Powerful radio pulses originating deep in the cosmos can be used to study hidden pools of gas cocooning nearby galaxies, according to a new study appearing in the journal Nature Astronomy.
Astronomy
Jul 5, 2022
0
1041
Using ESA's Gaia space observatory, astronomers have explored the Fornax dwarf spheroidal galaxy. They discovered that this galaxy has an extended stellar halo, spanning more than 17,000 light years. The finding was detailed ...
As their name suggests, ultradiffuse galaxies, or UDGs, are dwarf galaxies whose stars are spread out over a vast region, resulting in extremely low surface brightness, making them very difficult to detect. Several questions ...
Astronomy
Sep 6, 2021
6
1232
Supermassive black holes, or SMBHs, are black holes with masses that are several million to billion times the mass of our sun. The Milky Way hosts an SMBH with mass a few million times the solar mass. Surprisingly, astrophysical ...
Astronomy
Jun 16, 2021
16
5145
Using the LOw Frequency ARray (LOFAR), European astronomers have carried out radio observations of a low-mass galaxy cluster known as PSZ2G145.92-12.53, dubbed the Ant Cluster. In result, they identified a radio halo—a ...
A new theoretical study has proposed a novel mechanism for the creation of supermassive black holes from dark matter. The international team find that rather than the conventional formation scenarios involving 'normal' matter, ...
Astronomy
Feb 24, 2021
142
3193
The Milky Way is surrounded by dozens of dwarf galaxies that are thought to be relics of the very first galaxies in the universe. Among the most primitive of these galactic fossils is Tucana II—an ultrafaint dwarf galaxy ...
Astronomy
Feb 1, 2021
17
1417
The Milky Way galaxy is in the recycling business.
Astronomy
Oct 19, 2020
31
283
