Researchers link 8-minute radio pulses to white dwarf and Sun-like star
Original title: Researchers discover rare star system that emits radio signals every 8 minutes
GPM J071507−114153 is the first long-period transient tied to a white dwarf orbiting a G-type star, more than 5,000 light-years away.
Scientists at Curtin University’s ICRAR node identified radio pulses from GPM J071507−114153, a white dwarf orbiting a Sun-like G-type star every eight minutes. It is the first detection of such pulses from a white dwarf with a Sun-like companion, rather than a cooler red dwarf. The system is a long-period transient; the study appeared in Nature Astronomy.
Unconfirmed: The team says the pulses come from near the white dwarf or possibly the white dwarf itself.
- About a dozen long-period transients have been found since the same team’s 2021 discovery.
- The team processed more than 100 hours of radio data at Pawsey.
- MWA and MeerKAT located the source; Keck confirmed the G-type companion.
- Pulses also revealed flares and a likely stellar prominence on the Sun-like star.
From the original article
3 min read at curtin.edu.au
Scientists at the Curtin University node of the International Centre for Radio Astronomy Research ( ICRAR ) have linked mysterious radio pulses to an unusual pairing of stars — a dead star that spins every eight minutes and a star similar to our own Sun.
By giuliomagnifico · curtin.edu.au
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