资讯

NPR1 年
James Webb telescope captures the Ring Nebula in brilliant focus - NPR
Thanks to the James Webb telescope, we can now see the nebula with more clarity. As one expert says, "We always knew planetary nebulae were pretty. What we see now is spectacular." ...
Forbes4 年
This Is What The ‘Last Gasp’ Of A Dying Sun-Like Star Looks Like - Forbes
The planetary nebula dissipates over ~20,000 years, with only the core — a white dwarf — remaining behind. In the center of a planetary nebula, the core of a now-deceased Sun-like star heats ...
Nature6 年
An abundance of rare isotopes in a planetary nebula - Nature
The planetary nebula K4-47 is enriched in 13C, 15N and 17O isotopes. Observations reveal that a particular planetary nebula — the ejected envelope of an old star — is unusually enriched in ...
Rochester Institute of Technology4 年
Astronomers dissect the anatomy of planetary nebulae using Hubble Space Telescope images
Images of two iconic planetary nebulae taken by the Hubble Space Telescope are revealing new information about how they develop their dramatic features. Researchers from RIT and Green Bank Observatory ...
Science Daily4 年
Astronomers dissect the anatomy of planetary nebulae using Hubble Space ... - ScienceDaily
Astronomers dissect the anatomy of planetary nebulae using Hubble Space Telescope images Researchers shed new light on nebula formation processes ...
Phys.org3 年
Image: Hubble's view of planetary nebula reveals complex structure - Phys.org
NGC 6891 is a bright, asymmetrical planetary nebula in the constellation Delphinus, the Dolphin. This Hubble image reveals a wealth of structure, including a spherical outer halo that is expanding ...
Space.com6 年
This Strange Nebula Looks Inside Out and Born-Again | Space
A color composite image of planetary nebula HuBi1 reveals a low-excitation inner shell, and high-excitation outer shell, effectively appearing to be inside out. (Image credit: Nature Astronomy ...
Space.com1 年
An ancient red giant star created a rare 'bipolar' nebula as it died (photo ... - Space.com
At the heart of the double-lobed Toby Jug planetary nebula is the red-giant star HR3126, which at just 50 million years old, is considerably younger than the 4.6-billion-year-old sun. HR3126 ...
Science Daily2 年
Discovery of the oldest visible planetary Nebula hosted by a 500-million ... - ScienceDaily
The Planetary Nebula in the 500 Myr Old Open Cluster M37. The Astrophysical Journal Letters , 2022; 935 (2): L35 DOI: 10.3847/2041-8213/ac88c1 Cite This Page : ...
Nature23 年
Water-maser emission from a planetary nebula with a magnetized torus
K3-35 is an emission-line nebula that contains a bipolar precessing jet, which is the origin of strong emission from N +, emanating from a bright core 5,6.These structures are embedded in an ...
The Independent4 年
Nasa spots ‘very dramatic and very weird’ fading of already unusual planetary nebula ...
An already strange planetary nebula has been spotted fading, in what scientists have said is "very, very dramatic and very weird" behaviour. Stay up to date with notifications from The Independent.