Phys.org - Astrophysical Journal
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Phys.org internet news portal provides the latest news on science including: Physics, Space Science, Earth Science, Health and Medicine. The Astrophysical Journal is a peer-reviewed scientific journal covering astronomy and astrophysics.
Phys.org - Astrophysical Journal
8h ago
New movies of two of the most famous objects in the sky—the Crab Nebula and Cassiopeia A—are being released from NASA's Chandra X-ray Observatory. Each includes X-ray data collected by Chandra over about two decades. They show dramatic changes in the debris and radiation remaining after the explosion of two massive stars in our galaxy ..read more
Phys.org - Astrophysical Journal
8h ago
Planetary nebula are some of nature's most stunning visual displays. The name is confusing since they're the remains of stars, not planets. But that doesn't detract from their status as objects of captivating beauty and intense scientific study ..read more
Phys.org - Astrophysical Journal
2d ago
Gamma-ray bursts (GRBs) are intense bursts of gamma radiation, typically generating more energy in a few seconds than the sun will produce over its ten-billion-year lifetime. These transient phenomena present one of the most challenging puzzles in astrophysics, dating back to their accidental discovery in 1967 by a nuclear surveillance satellite ..read more
Phys.org - Astrophysical Journal
6d ago
In a new study published in the The Astrophysical Journal, Dr. Li Zhenwei and his collaborators from Yunnan Observatories of the Chinese Academy of Sciences (CAS), and Dr. Zhang Yangyang from the Zhoukou Normal University, proposed a new formation model for massive hot subdwarfs, offering explanations for a subset of helium-rich hot subdwarfs observed in the cosmos ..read more
Phys.org - Astrophysical Journal
1w ago
By analyzing the data from ESA's Gaia satellite, Chinese astronomers have detected a new tidal stellar stream in the northern hemisphere, which has a low metallicity and a relatively high energy. The finding was reported in a research paper published April 1 in The Astrophysical Journal ..read more
Phys.org - Astrophysical Journal
1w ago
Kyushu University researchers have shed new light into a critical question on how baby stars develop. Using the ALMA radio telescope in Chile, the team found that in its infancy, the protostellar disk that surrounds a baby star discharges plumes of dust, gas, and electromagnetic energy ..read more
Phys.org - Astrophysical Journal
2w ago
Despite their ancient ages, some stars orbiting the Milky Way's central supermassive black hole appear deceptively youthful. But unlike humans, who might appear rejuvenated from a fresh round of collagen injections, these stars look young for a much darker reason ..read more
Phys.org - Astrophysical Journal
2w ago
A team of astronomers has used NASA's James Webb Space Telescope to survey the starburst galaxy Messier 82 (M82). Located 12 million light-years away in the constellation Ursa Major, this galaxy is relatively compact in size but hosts a frenzy of star formation activity. For comparison, M82 is sprouting new stars 10 times faster than the Milky Way galaxy ..read more
Phys.org - Astrophysical Journal
2w ago
An international team of astronomers and astrophysicists has confirmed the first known observance of a tidally locked super-Earth exoplanet. In their paper published in The Astrophysical Journal, the group describes the unique approach they took to confirm that the exoplanet LHS 3844b is tidally locked and what the finding suggests about other planets in the galaxy ..read more
Phys.org - Astrophysical Journal
3w ago
A team of astronomers led by the University of Victoria and Yale University has detected an ancient star system traveling around our galaxy named Ursa Major III / UNIONS 1 (UMa3/U1)—the faintest and lowest-mass Milky Way satellite ever discovered, and possibly one of the most dark matter-dominated systems known ..read more