Astronomers have used the NASA/ESA Hubble Space Telescope to create a stunningly detailed image of NGC 3810, a spiral galaxy hosting a supernova.
This Hubble Space Telescope image shows NGC 3810, a spiral galaxy about 50 million light-years away in the constellation Leo. The color image is composed of infrared, visible, and ultraviolet observations from both the Hubble Space Telescope's Advanced Camera for Surveys (ACS) and Wide Field Camera 3 (WFC3) instruments. Nine filters were used to sample different wavelengths. Color is achieved by assigning a different hue to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / D. Sand / RJ Foley.
NGC 3810 It is located in the constellation Leo, about 50 million light years from Earth.
Also known as IRAS 11383+1144, LEDA 36243 and UGC 6644, the galaxy has a diameter of 60,000 light years.
NGC 3810 discovered It was discovered on March 15, 1784 by German-born British astronomer William Herschel.
The galaxy belongs to a small group of galaxies called the NGC 3810 group.
The bright central region of NGC 3810 thought Many new stars are forming and outshining the outer regions of the galaxy by a significant amount.
Even more distant galaxies show surprisingly abundant dust clouds along their spiral arms.
Far from the center, hot, young blue stars appear in huge clusters, with bright red giants scattered throughout the arms.
In 2022, a Type Ia supernova event called SN 2022zut was observed in NGC 3810.
“In early 2023, the Hubble Space Telescope will focus on this and several other galaxies to take a closer look at recent Type Ia supernovae,” Hubble astronomers said in a statement.
“These types of supernovae are produced by the explosion of a white dwarf star, and all of them maintain a very stable brightness.”
“This allows us to measure distances. We know how bright a Type Ia supernova is, so we can tell from how faint it appears how far away it is.”
“One uncertainty with this method is that intergalactic dust between Earth and the supernova will block some of the light.”
“How do we know how much of the light reduction is due to distance and how much is due to dust?”
“With the help of Hubble, we have a clever workaround: we can image the same Type Ia supernova in ultraviolet light, which is almost completely blocked by the dust, and in infrared light, which passes through the dust almost unaffected.”
“By carefully recording how much light is transmitted at each wavelength, we can calibrate the relationship between the supernova's brightness and distance, and take dust into account.”
“Hubble can observe both of these wavelengths of light in incredible detail with the same instrument.”
“That makes it the perfect tool for this experiment. In fact, some of the data used to create this beautiful image of NGC 3810 was focused on the SN 2022zut supernova, which you can see as a point of light just below the galactic nucleus.”
Source: www.sci.news
