Galaxies

Abell 3827

Central region of Abell 3827 as imaged using the Gemini Multi-Object Spectrograph on the Gemini South telescope in Chile. The central supermassive galaxy (ESO 146-IG 005) is clearly visible among its cluster companions as well as the remains of at least four nuclei that are being “digested” by the large galaxy. The central galaxy is thought to be the most massive galaxy in our local universe (out to about 1.5 billion light years).

NGC 3359 – Meet Me at the Bar

This image of NGC 3359 was obtained with the Gemini Multi-Object Spectrograph (GMOS) on the Gemini North telescope on Mauna Kea in Hawai‘i. The circular pinwheel shape with the easily recognized spiral arm structure makes it straightforward to classify this object as a spiral galaxy, however, it is the presence of the straight ‘bar’ in the center of the galaxy that distinguishes NGC 3359 from many other spirals.

Interacting Galaxies NGC 520

Gemini North image of interacting galaxies NGC 520. NGC 520 has a unique shape that is the result of two galaxies colliding with each other. One galaxy’s dust lane can be seen easily in the foreground and a distinct tail is visible at bottom center. These features are a result of the gravitational interactions that have robbed both of the galaxies of their original shapes. Some astronomers speculate that each member of the pair was originally similar to the Milky Way and Andromeda Galaxy.

Galactic Waltz NGC 1532-31

The interacting galaxy pair NGC 1532 and NGC 1531 were imaged using the Gemini Multi-Object Spectrograph (GMOS) at Gemini South in Chile on December 5, 2004. This view reveals spectacular details in the galactic pair embraced in a fiery waltz. The larger galaxy (NGC 1532) is a spiral, and from our point of view within the Milky Way it is seen as nearly edge-on. Intense reddish star-forming regions spatter the edges of the dusty arms silhouetted in the foreground against the galactic disk.

Hickson Compact Group 87

During commissioning in early 2003 of the Gemini Multi-Object Spectrograph (GMOS) on the Gemini South Telescope, images and spectra were obtained of the group of galaxies known as the Hickson Compact Group 87 (HCG 87). The Gemini image compares very favorably with space-based image of this same field and illustrates the remarkable resolution that is possible with Gemini when atmospheric conditions are optimal.

See Image Release for details 

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