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ASTRONOMI ZBUNJENI ZBOG POJAVE U SVEMIRU: Snimljen postojan udarni talas oko mrtve zvezde
Gas i prašina od zvezda mogu, pod odgovarajućim uslovima, da se sudare sa okruženjem zvezde i stvore udarni talas. Sad su astronomi pomoću Veoma velikog teleskopa Evropske južne opservatorije snimili divan udarni talas oko mrtve zvezde— otkriće koje je ih je zbunilo.
TL;DR
- Astronomers using the Very Large Telescope have detected a powerful shockwave around the dead star RXJ0528+2838.
- The presence of this shockwave challenges current understanding of how dead stars interact with their surroundings, as it cannot be explained by known mechanisms.
- RXJ0528+2838 is a white dwarf with a Sun-like companion, but it shows no signs of an accretion disk, which is typically required to produce such outflows.
- Observations suggest the white dwarf has been ejecting material for at least 1,000 years, possibly driven by a strong magnetic field.
- This discovery indicates that binary systems might produce powerful outflows even without accretion disks, highlighting a poorly understood mechanism.
- Further study of similar binary systems is needed to understand these disk-less jets and their mysterious energy source.