Results from detailed observations of the dust disk around Vega, the alpha star in the constellation Lyra, have been released to the public. Vega is an A-type main sequence star that shines bright enough to be counted in the night sky, and is known by the nickname, Jiknyeo Star.
The National Aeronautics and Space Administration (NASA) recently released a clear picture of the dust disk around Vega taken by the James Webb Space Telescope through its official channel. NASA compared and showed pictures of the same disk captured by the Hubble Space Telescope, which has been operating for more than 30 years.
The dust disk around the object is mainly composed of rock and ice particles. The James Webb Space Telescope’s Mid-Infrared Instrument (MIRI) and Hubble’s Space Telescope Imaging and Spectroscopy Telescope (STIS) captured patches of rock and ice around Vega.
Vega and surrounding dust disk photographed by the James Webb Space Telescope
A NASA official said, “MIRI captured infrared rays emitted by dust the size of a grain of sand, and STIS captured light reflected by fine dust swirled around the disk,” and added, “The black circle recalling an eye in the center of the screen, the image is the James Webb Space Telescope.
He continued, “About 60 astronomical units (1 astronomical unit = about 150 million km) away from Vega, there seems to be a small gap where the circulation of pieces of rock and ice is weakened celestial bodies, Vega “Yes it is full of secrets,” he said.
Vega has also captured infrared space telescopes such as NASA’s Spitzer and the European Space Agency’s (ESA) Herschel, as well as the Chilean ALMA Radio Telescope Array. However, Vega’s dust disk has never been captured in such detail as this time.
Vega and its surrounding dust disk captured by the Hubble Space Telescope
NASA evaluated this performance as important data for studying the various properties of the disk around a star. Scholars announced the results of an analysis of the disc of the star Alpha Pisces Fomalhaut, imaged by the James Webb Space Telescope, last May. Fomalhaut, unlike Vega, was found to have a complex dust disk marked by two gaps.
A NASA official said, “A series of research results allows us to consider how diverse the disk around the celestial body is and how connected it is to the planetary system behind it. alpha stars.” “It will happen,” he said.
Reporter Jeong Ian [email protected]
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