Hubble data confirms galaxies lacking dark matter eurekalert.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from eurekalert.org Daily Mail and Mail on Sunday newspapers.
Type Ia supernovae are an important tool for modern astronomy. They are thought to occur when a white dwarf star captures mass beyond the Chandrasekhar limit, triggering a cataclysmic explosion. Because that limit is the same for all white.
A new study led by Dr. Eswaraiah Chakali from Prof. LI Di s research group at the National Astronomical Observatories reveals the diverse magnetic field morphologies in Solar-type star forming cores in the Taurus B213 region.
Center for Astrophysics
A Hubble image of the M-dwarf star Proxima Centauri, our closest stellar neighbor about four light-years away. Proxima hosts two planets, and is known to actively flare. Astronomers studying the suitability for life evolving on exoplanets around M-dwarf stars have completed a multi-wavelength analysis of an extreme flare on Proxima Cen.
Hubble/ ESA/NAS
The prospects for life around low-mass, cool M-type stars have been extensively discussed because these stars are the most common ones in the galaxy, and they frequently host Earth-sized planets in their habitable zones (orbits where the surface temperatures can support liquid water). Unfortunately for the prospects of life, however, these stars also exhibit higher levels of stellar activity and flaring than do more massive, solar-type stars, and flares can gradually deplete a planet’s atmosphere of molecules needed for life. Moreover, these hostile conditions persist in some fashion throughout their lifeti