Astronomers have narrowed the timeline of the explosive demise of a distant star with the help of NASA’s Hubble Space Telescope and Chandra X-ray Observatory.
Have you heard about the explosion of stars? Yes, stars are exploding in the Milky Way and nearby galaxies, and astronomers have seen debris from dozens of exploding stars. However, it is very difficult to determine or know the timeline of the star’s death. But NASA has now reported that by studying the astonishing remnants of a supernova in a neighboring galaxy using NASA telescopes, a team of astronomers has found enough evidence to help turn back the clock.
“By collecting data from ChandraXray, @NASAHubble and the retired Spitzer Space Telescope, they narrowed the timeline of the explosive demise of a distant star. According to the information, the supernova remnant named SNR 0519-69.0 is the debris from the explosion of a white dwarf star.”
“After reaching critical mass, either by pulling matter from a companion star or merging with another white dwarf, the star experienced a thermonuclear explosion and was destroyed. Scientists use this type of supernova, called Type Ia, for a wide range of scientific research. Studies ranging From studies of thermonuclear explosions to measuring distances to galaxies across billions of light years,” The research organization said.
It further states that SNR 0519 is located in the Large Magellanic Cloud, a small galaxy 160,000 light-years from Earth. The astronomers combined data from NASA’s Chandra X-ray Observatory and the Hubble Space Telescope with data from NASA’s retired Spitzer Space Telescope to determine how long the star exploded at SNR 0519 and learn about the environment in which the supernova occurred.
This data provides scientists with an opportunity to trace back the movie of stellar evolution that has begun since then and know when it began. The researchers compared Hubble images from 2010, 2011 and 2020 to measure the velocities of material in the blast wave from the blast, which range from about 3.8 million to 5.5 million miles (9 million kilometers) per hour.
If the speed is near the high end of those estimated speeds, astronomers have determined that the light from the explosion would have reached Earth about 670 years ago, or during the Hundred Years’ War between England and France and at the height of the Ming dynasty in China. .
However, it is possible that the material has slowed down since the initial eruption and that the eruption occurred as recently as 670 years ago. Chandra and Spitzer data provide evidence that this is the case. The astronomers found that the brightest X-ray regions of the remnant are where the slower-moving material is, and no X-ray emission correlates with the faster-moving material.
These results indicate that some of the blast wave hit the dense gas around the remnant, causing it to slow down as it moved. Astronomers may use additional observations with Hubble to more accurately determine the star’s demise time.
Did you know?
NASA’s Hubble Space Telescope is an international collaboration project between NASA and the European Space Agency. The telescope’s mirror optical system collects light from the universe and focuses it for analysis by science and guidance tools. The optical system, called the Optical Telescope Association (OTA), gives Hubble a unique view of the universe by collecting infrared, visible, and ultraviolet radiation. However, it was developed by the newer and more powerful James Webb Space Telescope.