Scientists have found that the ultraviolet spectrum of the supernova is diverse (video) www.ggg258.com

Scientists have found that the presence of a variety of supernovae ultraviolet spectrum why the stars will explode into a supernova? Astronomers of type Ia supernova is how the operation has a certain degree of understanding, but there are still some problems to be solved, such as the nature of its companion. Tencent space news according to foreign media reports, produced massive star supernova explosion is one of the most important events in the universe, because they release large amounts of chemical substance originally present in the stars in the universe, including the important elements in the formation of planets and life. Type Ia supernova has another advantage: these objects are considered to be the standard candle, which is due to the formation of the original star with stellar material to fall caused the explosion. Therefore, astronomers use the Ia type supernova to estimate the distance from a galaxy that is too distant and the supernova is fainter. Astronomers of type Ia supernova is how the operation has a certain degree of understanding, but there are still some problems to be solved, such as the nature of its companion. One way to observe the type Ia supernova explosions and their original stars is through their ultraviolet (UV) spectroscopy. By ultraviolet spectroscopy, scientists can directly observe the outermost part of the supernova, the outermost layer can not be reflected in the light after the explosion. Jerod Parrent scientists at the Harvard Smithsonian Center for Astrophysics and colleagues have completed the first complete high quality type Ia supernova short ultraviolet spectra of samples. They found that in the UV spectrum, spectral diversity more than light band, and these diversity seems to be the shape of the light curve (the light curves: details of supernova brightness as time changes, although) there seems to be no obvious physical contact. According to the matching results of the light curves, the astronomers made a rough model to compare with the events in the future. They hope to show the difference in energetics, morphology, and chemistry between the model and the actual observed features. (compile)相关的主题文章: