Once part of a flat, spiral disk, the orbits of the galaxy’s stars have become scrambled due to gravitational tidal interactions with the other galaxy.
It is the brightest of the three galactic mergers closest to Earth, about 250 million light-years away in the constellation of Serpens, the Serpent. The two interacting galaxies — NGC 5426 and NGC 5427 — together form an intriguing astronomical object named Arp 271, the subject of this, the final image captured by VIMOS before it was decommissioned on 24 March 2018. The pair contains the disturbed, star-forming spiral galaxy NGC 2936, along with its elliptical companion, NGC 2937 at lower left.
Arp 220 appears to be a single, odd-looking galaxy, but is in fact a nearby example of the aftermath of a collision between two spiral galaxies. "Galaxias en Interacción: el caso de Arp 220" - Loreto Barcos (Univ. The maximum of the infrared energy distribution can now clearly be determined. It is the brightest of the three galactic mergers closest to Earth, about 250 million light-years away in the constellation of Serpens, the Serpent. Arp 220, a merging pair of galaxies with characteristic tidal tails, is only 75Mpcaway,givingusaclose-upviewofaULIRG.Itismaking ∼200M# yr−1 of new stars, but only a few percent of their light escapes directly. Arp 220 is the result of a collision between two galaxies which are now in the process of merging, situated some 250 million light-years away from Earth in the northern constellation of Serpens (the Serpent). It is receding from us at about 5434 kilometers per second. This image is part of a large collection of 59 images of merging galaxies taken by the Hubble Space Telescope and released on the occasion of its 18th anniversary on 24 April 2008.
Hubble Interacting Galaxy Arp 220 (2008-04-24).jpg 3,372 × 3,372; 7.02 MB SEDApr220.png 1,123 × 794; 60 KB The merging galaxy system Arp 220 from ALMA and Hubble.jpg 955 × 692; 166 KB Examples include the Antennae, Arp 220 and the Mice. interacting galaxies Two, three, or (more rarely) four or more galaxies that show signs of mutual disturbance, such as perturbed morphologies or extruded filaments of stellar material, called tidal tails, which can sometimes link to form bridges between the galaxies. Infrared spectroscopy and photometry and optical spectroscopy of the exceedingly luminous interacting galaxies Arp 220 (= IC 4553) and NGC 6240 are presented.
• The LRIGs contribute with <6% of the total FIR emission in the local universe. The rest is absorbedbydust,sowesee LFIR ∼ 1.5×1012 L#.Radioandinfraredobservations Two spiral galaxies are locked in a spellbinding, swirling dance in this image from the VIMOS instrument on ESO ’s Very Large Telescope (VLT). For the luminous galaxies Arp 244, NGC 6240 and Arp 220 detailed infrared spectral energy distributions between 3 and 200μm obtained with ISOPHOT are presented.
This interacting pair of galaxies is included in Arp's catalog of peculiar galaxies as number 148. This list may not reflect recent changes (). Arp 220 is the 220th galaxy in Arp's Atlas of Peculiar Galaxies. Indeed the only LIRG we find is Arp 220. Almost all of its power output (99 percent) is emitted at far-infrared wavelengths.