Hubble captures the bright supernova SN 2014J
The telescope of the NASA / ESA was able to photograph the event at its maximum brilliance. The supernova is located in one of the galaxies studied by astronomers. The space telescope, like other instruments, has not been able to locate the progenitor star, due to the abundant dust in the galactic disk that hides the view.
Telescope composite image taken by the NASA / ESA Hubble: you see the explosion of the supernova SN 2014J in the galaxy M82. Taken on January 31, the explosion is shown in the box.
Credit: NASA, ESA, A. Goobar (Stockholm University), and the Hubble Heritage Team (STScI / AURA)
The supernova SN 2014J has put in place for a telescope of the NASA / ESA Hubble. SN stands for supernova, 2014 is to indicate the year of its discovery and “J” indicates the tenth letter of the alphabet and also that the supernova was observed in tenth year. At a distance of about 11.5 million light-years away in the galaxy M82, the supernova is the closest of its type observed in recent decades. The explosion is classified as a Type Ia supernova, which are the most violent explosions: according to experts, is activated by binary systems consisting of a white dwarf and another star – which can be a second white dwarf, a star like our Sun, or a giant star.
The first sighting of the explosion was accidental: the night of January 21, 2014 Dr. Fossey, University of London, during a lecture with students of astrophysics, he discovered one of the brightest supernovas in recent times. Strangely other professional programs of study of supernovae, such as LOSS, AST and LASSST, had not yet noticed the object. The image above was obtained by Hubble on 31 January, when the peak brightness was at its highest. The explosion, photographed by the Hubble Wide Field Camera 3, was superimposed on a photo mosaic of the entire galaxy taken in 2006, made with the Hubble’s Advanced Camera for Surveys. It was then selected and zoomed in the lower right corner.
Photograph of the supernova SN 2014J obtained with a filter H- alpfa, by Man Fok, Zhong Shan, China.
Credits: NASA, ESA
M82 is an irregular galaxy dubbed the “Cigar” is located in the constellation Ursa Major at about 12 million light years away from us. It is positioned to cut and so you cannot see his spirals, at least from the Earth. Along with its companion M81, flat mass compared to us, they form one of the pairs of galaxies studied by astronomers.
The supernova in question is the final stage of a star in the galaxy M82, not localized in the nucleus, but at 58 arcseconds to the west -southwest. The Hubble Space Telescope, like other tools, it was not able to locate the progenitor star, due to the abundant interstellar dust in the galactic disk that hides the view.
The Hubble data, however, will help astronomers improve distance measurements of Type Ia supernovae. In addition, by further observations you might understand what types of stars have been involved in the explosion. The extraordinary sensitivity to ultraviolet light Hubble will allow astronomers to probe the environment around the site of the explosion and the interstellar environment of the host galaxy.