By analyzing the data from ESA's XMM-Newton satellite, astronomers from the Astronomical Observatory of the Jagiellonian University in Kraków, Poland, and elsewhere, have investigated X-ray intraday variability of a nearby ...
By analyzing the data from four space observatories, European astronomers have presented a complete and thorough X-ray view of an active galactic nucleus in a nearby spiral galaxy known as NGC 4258. Results of the study, ...
By analyzing the historical light curve of blazar PKS 0405-385 from NASA's Fermi spacecraft, Chinese astronomers have detected quasi-periodic oscillation from this source. The discovery, presented in a paper published May ...
Using NASA's Chandra X-ray observatory, astronomers from the Harvard-Smithsonian Center for Astrophysics (CfA) and elsewhere have investigated an active galaxy known as Markarian 78. They report that the source exhibits termination ...
Something strange is afoot in the galaxy known as 1ES 1927+654: In late 2017, and for reasons that scientists couldn't explain, the supermassive black hole sitting at the heart of this galaxy underwent a massive identity ...
Astronomy
May 5, 2022
5
1109
Using various space and ground-based observatories, astronomers have inspected flaring activity observed on a blazar known as S5 1803+78. Results of this multi-wavelength study, published April 10 on the arXiv pre-print server, ...
This image from the NASA/ESA Hubble Space Telescope reveals tendrils of dark dust threading across the heart of the spiral galaxy NGC 7172. The galaxy lies approximately 110 million light-years from Earth in the constellation ...
Astronomy
Apr 4, 2022
0
173
Using XMM-Newton and NuSTAR satellites, astronomers have conducted a comprehensive, long-term multiwavelength study of an active galaxy known as RXJ0134.2-4258. Results of the observational campaign, published March 25 on ...
Unlike our Milky Way, some galaxies have an active black hole in their center driving powerful outflows of gas. But we know very little about their impact and origin. ESA's future X-ray mission Athena will change this. In ...
Astronomy
Mar 28, 2022
1
410
The European Southern Observatory's Very Large Telescope Interferometer (ESO's VLTI) has observed a cloud of cosmic dust at the center of the galaxy Messier 77 that is hiding a supermassive black hole. The findings have confirmed ...
Astronomy
Feb 16, 2022
0
415
