The NASA/ESA Hubble Space Telescope has captured a stunning new image of IC 758, a spiral galaxy located within the constellation Ursa Major.
This Hubble image depicts IC 758, a barred spiral galaxy located roughly 60 million light years from Earth in the Ursa Major constellation. The colorful image is based on observations from Hubble’s advanced cameras used for the Investigation of the Near-Infrared and Optical Parts (ACS). Two filters were utilized to capture different wavelengths, with colors assigned by applying distinct hues to each monochromatic image linked to an individual filter. Image credits: NASA/ESA/Hubble/C. Kilpatrick.
IC 758, located about 60 million light years from our planet in the constellation Ursa Major, is also known as Leda 38173 or UGC 7056.
This galaxy was discovered by the American astronomer Lewis Swift on April 17, 1888.
IC 758 is a member of the NGC 4036 Galaxy Group (also referred to as LGG 266), which encompasses more than 10 galaxies.
“In this captivating Hubble image taken in 2023, IC 758 appears serene, with its gentle blue spiral arm gracefully curving around its prominent Barred Center,” remarked a Hubble astronomer.
“However, in 1999, astronomers detected a significant event in this galaxy: the supernova SN 1999bg.”
“SN 1999BG marked the explosive conclusion of a star much larger than our sun.”
“We are still uncertain about the mass of this star before its explosion,” they added.
“Utilizing these Hubble observations, we can determine the mass of the nearby stars in SN 1999BG, aiding in the estimation of the supernova’s progenitor.”
“Hubble’s data might also provide insights into whether the precursor star of SN 1999BG has a companion.”
“A supernova signifies more than just the end of a single star; it is a formidable force that can influence its surroundings,” the astronomer noted.
“When a massive star collapses and triggers a supernova, its outer layers rebound from the diminishing core.”
“This explosion disrupts the interstellar medium of gases and dust from which new stars are born.”
“This upheaval may lead to the formation of new stars by scattering and heating adjacent gas clouds or compressing them to generate new stars.”
“The expelled outer layers also contribute to the materials needed for new star formation.”
Source: www.sci.news
