German astronomers have conducted photometric observations of a cataclysmic variable (CV) star known as PTF1J2224+17. Results of the observational campaign confirm that this object is a polar, as suggested by previous studies. ...
Astronomers have peered into the home galaxies of fast radio bursts, ruling out supermassive black holes as a cause and bringing us a step closer to understanding the origins of these mysterious signals from outer space.
Astronomy
Jun 2, 2020
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141
A team of researchers, led by astrophysicist Sumner Starrfield of Arizona State University, has combined theory with both observations and laboratory studies and determined that a class of stellar explosions, called classical ...
Astronomy
Jun 1, 2020
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1260
In 1930, Dorrit Hoffleit reported that star number #4749 in the Harvard List of variables had faded four times between 1897 and 1929, and identified it as an R Coronae Borealis (RCB) variable. RCB stars are luminous low-mass ...
Astronomy
May 20, 2020
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12
In the depths of the night sky lies a barred spiral galaxy called NGC 3583, imaged here by the NASA/ESA Hubble Space Telescope. This is a barred spiral galaxy with two arms that twist out into the universe. This galaxy is ...
Astronomy
May 12, 2020
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526
The next generation of powerful Earth- and space-based telescopes will be able to hunt distant solar systems for evidence of life on Earth-like exoplanets—particularly those that chaperone burned-out stars known as white ...
Astronomy
Apr 30, 2020
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2925
A polar is a highly magnetic type of cataclysmic variables containing an accreting white dwarf and a low-mass donor star. Due to the magnetism, the white dwarf would synchronously spin, however, there are still several asynchronous ...
Astronomy
Apr 29, 2020
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9
A team of astronomers from Australia and Italy has investigated a nearby white dwarf designated 2MASS J050051.85–093054.9 (J0500−0930 for short). In their new study, they report that the object is the closest extremely ...
Astronomers may have discovered a new kind of survival story: a star that had a brush with a giant black hole and lived to tell the tale through exclamations of X-rays.
Astronomy
Apr 24, 2020
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5111
An international team of astronomers has identified a major outburst and X-ray pulsation from an X-ray binary system known as RX J0209.6−7427. The detection, detailed in a paper published April 6 on the arXiv pre-print ...
