2024-04-12 12:07:06
This is the spiral galaxy “IC 4633” located approximately 100 million light years away in the direction of the constellation “Fucho.” IC 4633 is one of the so-called face-on galaxies that can be seen from Earth at a near-frontal angle.
【▲ IC 4633(Credit: ESA/Hubble & NASA, J. Dalcanton, Dark Energy Survey/DOE/FNAL/DECam/CTIO/NOIRLab/NSF/AURA; Acknowledgment: L. Shatz)】
According to the European Space Agency (ESA), IC 4633 is partially obscured by a dark nebula that makes up a star-forming region in the constellation Chameleon, adjacent to the constellation of Feminus. At first glance, the image of IC 4633 seems to clearly show a bright center containing an active galactic nucleus that emits strong electromagnetic waves from a narrow region, as well as spiral arms that spread around it. It is said that it is not possible to fully understand the nature of visible light, which is easily absorbed and scattered by dust.
This image was created using data acquired by the Hubble Space Telescope (HST)’s Advanced Camera for Sky Surveys (ACS). The observations of IC 4633 by the Hubble Space Telescope are part of an effort to search for galaxies that could be the subject of future detailed observations by the James Webb Space Telescope (JWST) or by the Hubble Space Telescope itself. I did.
In addition to the Hubble Space Telescope’s ACS, optical observation data from the Dark Energy Camera (DECam) installed on the Blanco 4m Telescope at Cerro Tololo Pan-American Observatory was used to create the images. Masu. As the name suggests, DECam is an observation device developed with the main purpose of researching dark energy, and observations for the original purpose of dark energy research were conducted from 2013 to 2019. Ta.
The first image was published by ESA as “Hubble Space Telescope Image of the Week” on April 8, 2024.
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