New images from the James Webb Space Telescope (JWST) have revealed, for the first time, starlight from two massive galaxies hosting actively growing black holes—quasars—seen less than a billion years after the Big Bang. ...
Astronomy
Jun 28, 2023
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Using NASA's Neil Gherels Swift Observatory, Indian astronomers have observed a blazar known as OJ 287. Results of the observational campaign, published May 25 on the arXiv pre-print server, shed more light on the spectral ...
Using NASA's Swift observatory and ESA's XMM-Newton satellite, Indian astronomers have inspected a prominent high synchrotron peaked blazar known as 1ES 1959+650. Results of the study, published May 5 on the arXiv pre-print ...
Scientists have unlocked one of the biggest mysteries of quasars—the brightest, most powerful objects in the universe—by discovering that they are ignited by galaxies colliding.
Astronomy
Apr 25, 2023
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Astronomers have made a rare discovery in the early universe involving two actively feeding supermassive black holes—or quasars—just 10,000 light-years apart from each other, that are on the verge of a colossal collision.
Astronomy
Apr 5, 2023
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This luminous image from the NASA/ESA Hubble Space Telescope shows , a celestial object that lies about 390 million light-years from Earth in the constellation Lyra. Z 229-15 is one of those interesting celestial objects ...
Astronomy
Apr 3, 2023
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Indian astronomers have analyzed observational data of a gamma-ray blazar known as PKS 0402-362, collected in the timespan of nearly 13 years. The study, published March 7 in the Monthly Notices of the Royal Astronomical ...
Astronomers have determined that so-called "leaky" galaxies may have responsible for triggering the last great transformational epoch in our universe, one which ionized the neutral interstellar gas.
Astronomy
Mar 2, 2023
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An international team of astronomers has conducted a long-term multi-frequency radio monitoring of a nearby blazar known as OJ 287. Results of the observational campaign, published February 22 on the pre-print server arXiv, ...
Using three space telescopes, Armenian astronomers have observed a flaring high-redshift blazar known as PKS 0537-286. Results of the observational campaign, presented February 15 on the pre-print server arXiv, deliver important ...
