Due to its large number, NGC 2623 is classified as a Seyfert galaxy. Because of its large number, NGC 2623 is classified as a Seyfert galaxy. One is the spectrally hard and compact core feature, and the other is a cool feature that is not in the core. NGC 2623, also known as Arp 243, spans about 50,000 light years and lies about 250 million light years away in the direction of the constellation Cancer.
Tidal tails can also be seen in the Antennae galaxy, as they are also formed by the merger of galaxies, similar to NGC 2623. NGC 2623 is a well-studied triple system, listed in the Arp Atlas of Special Galaxies (Arp 196) as ARP 243.
Is NGC 2623 moving towards Earth?
Star formation continues around this nucleus near the centre of the image, along the extended tidal tails seen on either side and, perhaps surprisingly, in a region outside the nucleus at the top left, where clusters of bright blue stars appear. NGC 2623 (also known as Arp 24) is a pair of merging galaxies about 50,000 light-years across, located about 253 million light-years from Earth in the northern constellation of Cancer as it moves away from us at about 5,549 kilometres per second. Galaxy collisions can last hundreds of millions of years and involve multiple gravitational flybys. Some galaxy mergers (including NGC 262) can result in an active galactic nucleus, where one of the supermassive black holes located at the centres of the two original galaxies is set in motion.
What kind of galaxy is NGC 1705?
Furthermore, by studying dwarf galaxies, one can add to the information available for solar-composition stars and gain useful insights into the metallicity dependence of stellar yields and winds in Wolf-Rayet (W-R) stars. The current metallicity of the H ii regions of NGC 1705 and NGC 1569 can only be well reproduced if strong GWs efficiently remove metals from the galaxies, which is consistent with previous work (e.g. NGC 1705 is an excellent source of insights into galaxy formation and evolution due to its age, irregular shape and proximity. Irregular dwarf galaxies are probably quite old stellar systems whose chemical and physical properties may be the result of a slow evolutionary process.
What kind of galaxy is NGC 2775?
These fluffy spiral arms suggest that the recent history of star formation in the galaxy known as NGC 2775 has been relatively quiet. The Hubble Space Telescope has just imaged a galaxy 67 million light years away in the constellation Cancer, and it is flaky. The galactic bulge is where all the galaxy’s gas was converted into stars when it was formed. First discovered in 1783, the galaxy NGC 2775 is located 67 million light years from the Milky Way in the northern constellation of Cancer.
The spirals of NGC 2775 are described as flake spirals, which is in contrast to the clearly defined spirals of other galaxies.
Why is star formation so pronounced in the tails?
A galaxy’s ability to form stars depends critically on its reservoir of gas, and consequently any process that can alter the content, dynamics and distribution of gas in a galaxy is likely to affect its SF history. A tidal tail is a thin, elongated region of stars and interstellar gas that extends into space from a galaxy. Star formation in the bulge is slightly increased, but the resulting change in the bulge-to-disk ratio is insignificant. Understanding that both new star formation and stars entrained along the tail by galaxy interactions coexist in these tidal tails will inform future work on how galaxy interactions and mergers occur and influence the final stellar population of merged galaxies.
How heavy is NGC 4889?
Astronomers believe that the gigantic black hole has stopped feeding and is now resting after enjoying the cosmic cuisine of NGC 4889. For this particular black hole in the galaxy NGC 4889, scientists used instruments from the Keck II Observatory and the Gemini North Telescope to measure the speed of stars moving around the centre of the galaxy. When the galaxy was active, the supermassive black hole at the core of NGC 4889 was fed by the process of hot accretion. Using instruments from the Keck II Observatory and the Gemini North Telescope, astronomers measured the speed of stars moving around the centre of NGC 4889.
How old is NGC 4889?
Astronomers believe that the giant black hole has stopped feeding and is now resting after enjoying NGC 4889’s cosmic cuisine. It is thought that giant elliptical galaxies like NGC 4889 are the result of several mergers of smaller galaxies. NGC 4889 is probably the largest and most massive galaxy up to a radius of 100 Mpc (326 million light years) around the Milky Way. The black hole at the centre of NGC 4889 is one of the largest ever discovered, but it is currently dormant.
At the centre of the galaxy is a supermassive black hole that heats up the medium inside the cluster through the friction of infalling gas and dust.
What kind of galaxy is NGC 2775?
Known as NGC 2775, the galaxy has fuzzy arms that spiral out from its centre like the limbs of a white dog, and it is dotted with millions of young, glowing blue stars. NGC 2775’s gas spirals, which act as star-producing factories, have spread far from the galaxy’s unusually massive central bulge. The Hubble Space Telescope has just imaged a galaxy 67 million light years away in the constellation Cancer – and it’s fluffy. A type Ia supernova is the result of the violent explosion of a white dwarf star (a compact star that has stopped nuclear fusion in its core).
