Astronomers using the NASA/ESA Hubble Space Telescope have taken photos of NGC 3783, a bright barred spiral galaxy in the constellation Centaurus.
This Hubble image shows NGC 3783, a barred spiral galaxy about 135 million light-years away in the constellation Centaurus. The color images consist of infrared and optical observations from Hubble’s Wide Field Camera 3 (WFC3). Based on data obtained through five filters. Color is obtained by assigning different hues to each monochromatic image associated with an individual filter. Image credits: NASA / ESA / Hubble / MC Benz / DJV Rosario.
NGC 3783 is located about 135 million light years It is located beyond the constellation Centauri.
Also known as ESO 378-14, LEDA 36101, or 2XMM J113901.7-374418, this galaxy was first discovered It was announced by British astronomer John Herschel on April 21, 1835.
NGC 3783 is home to a rapidly rotating black hole of 2.8 million solar masses.
It is a major member of the NGC 3783 galaxy group, which is a collection of 47 galaxies.
“Like galaxy clusters, galaxy groups are gravitationally bound collections of galaxies,” the Hubble astronomers said.
“However, galaxy groups are smaller and contain fewer members than galaxy clusters. Galaxy clusters can contain hundreds or even thousands of member galaxies, whereas galaxy groups typically contain fewer than 50. It does not include galaxies that exceed
“The Milky Way is actually part of a group of galaxies known as the Local Group, which includes two other large galaxies (Andromeda and the Triangular Galaxy) and dozens of satellite galaxies. Contains dwarf galaxies.
“On the other hand, the NGC 3783 galaxy group contains 47 galaxies,” they added.
“It also appears to be at a fairly early stage in its evolution, making it an interesting subject to study.”
“Although the focus of this image is spiral galaxy NGC 3783, your eye is equally focused on a very bright object in the lower right-hand portion of this image. This is the star. HD 101274” said the researchers.
“The perspective of this image makes the stars and galaxies appear to be close companions, but this is an illusion.”
“HD 101274 is only about 1,530 light-years from Earth, which means it is about 85,000 times closer than NGC 3783.”
“This explains how a single star can appear to outshine an entire galaxy.”
According to scientists, NGC 3783 type I Seyfert galaxy — A galaxy with a bright central region.
“In this image, thanks to five separate images taken at different wavelengths of light, Hubble shows incredible detail, from the glowing central bar to the thin, winding arms and the dust that passed through them. ,” the researchers said.
“In fact, the center of the galaxy is bright enough for Hubble to exhibit diffraction spikes that are normally only seen in stars such as HD 101274.”
Source: www.sci.news
