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Nearly 400 years ago, Galileo looked at the Pleiades star cluster through his telescope and noticed that the seven or so ...
More Astronomers have discovered the "missing link" connecting the death of sunlike stars to the birth of white dwarf stellar remnants, in the form of a "teenage vampire" white dwarf. This vampire ...
This reminded them of a white dwarf pulsar, a highly magnetic dead star that sweeps electromagnetic radiation across the universe as it spins, like a cosmic lighthouse. However, the vampiric feeding ...
Finding a "teenage" white dwarf pulsar is particularly exciting because this phase of a star's life is so brief, Rodriguez explains. How brief? "About 40 million years," he says.
“ASKAP J1832–0911 is currently the only LPT detected with (pulsed) X-ray emission — perhaps unsurprisingly, given its extreme radio brightness and the potential correlation between the radio and X-ray ...
But it is also the first LPT known to emit X-rays. This mysterious object could take many forms, including a pulsar, a white dwarf star in a binary with a low-mass star, or a magnetar.
The researchers believe ASKAP J1832–0911 to be compact and to have strong magnetic fields, which would align with the properties of either a magnetic white dwarf (the corpse of a star that has lost ...
Dr Wang said it was not clear whether the new observation could be a white dwarf or a neutron star. "Both are possible, but personally I would prefer an isolated neutron star," he said.
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Pulsar 4 pulses significantly faster: every quarter of a second. In addition, Hewish estimated that the fast-pulsing source is only 50 light-years away, compared with the 200-light-year distance ...
The pulsar is locked in a 1.6-day orbit with one white dwarf, and both of them are orbited by another white dwarf every 327 days.