The compact group of interacting galaxies in Virgo captured by the Darkish Power Digital camera | sorae Area Portal

2024-05-27 12:33:20

That is RSCG 55, a dense galaxy cluster positioned within the route of Virgo, regarding 350 million light-years away from us. A galaxy group is a gaggle of as much as dozens of galaxies smaller than a galaxy cluster. Amongst them, a gaggle of galaxies during which a number of galaxies are notably concentrated in a small space is known as a compact galaxy group.

[▲ 位於處女座的緻密星系團「RSCG 55」（資料來源：DESI Legacy Imaging Surveys/LBNL/DOE & KPNO/CTIO/NOIRLab/NSF/AURA；影像處理：TA Rector（阿拉斯加大學安克雷奇分校/NSF NOIRLab），D de Martin (NSF NOIRLab) & M. Zamani (NSF NOIRLab)]

In line with the Nationwide Science Basis’s (NSF) Nationwide Optical and Infrared Astronomy Laboratory (NOIRLab), which launched the picture, RSCG 55 is a gaggle of interacting galaxies that affect one another via gravity. Some interacting galaxies have shapes which might be considerably distorted by tidal forces, or have spiral arms that reach like lengthy tails. The tidal bridges connecting galaxies within the picture are additionally fashioned via interactions and are composed of stars, fuel and mud. Galaxies related by this construction are given, from the left, the catalog names “Z 70-79”, “IC 790”, “Mrk 1325B” and “NGC 4410”.(※).

The picture was created from observational information from the Darkish Power Digital camera (DECam), an observational instrument put in on the Blanco 4m telescope on the Pan-American Observatory in Monte Tololo, Chile. Because the title suggests, DECam is an remark system developed with the principle goal of learning darkish power. Observations with the unique intention of darkish power analysis had been carried out from 2013 to 2019.

The primary picture was launched by NOIRLab on Might 22, 2024.

*…The galaxies in every catalog have totally different names, so the identical galaxy might be referred to as a number of instances (for instance, “M31”, “NGC 224” and “LEDA 2557” all seek advice from the “Andromeda Galaxy”). Ma Su). Right here we standardize the names listed within the fundamental information part of the Strasbourg Astronomical Information Middle database “SIMBAD”.

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