Subscribe free to our newsletters via your
. Military Space News .




STELLAR CHEMISTRY
Galactic Serial Killer
by Staff Writers
Munich, Germany (SPX) Apr 07, 2014


This new image from the MPG/ESO 2.2-metre telescope at ESO's La Silla Observatory in Chile shows a contrasting pair of galaxies: NGC 1316, and its smaller companion NGC 1317 (right). Although NGC 1317 seems to have had a peaceful existence, its larger neighbour bears the scars of earlier mergers with other galaxies. Image courtesy ESO.

This new image from the MPG/ESO 2.2-metre telescope at ESO's La Silla Observatory in Chile shows two contrasting galaxies: NGC 1316, and its smaller neighbour NGC 1317. These two are quite close to each other in space, but they have very different histories. The small spiral NGC 1317 has led an uneventful life, but NGC 1316 has engulfed several other galaxies in its violent history and shows the battle scars.

Several clues in the structure of NGC 1316 reveal that its past was turbulent. For instance, it has some unusual dust lanes embedded within a much larger envelope of stars, and a population of unusually small globular star clusters. These suggest that it may have already swallowed a dust-rich spiral galaxy about three billion years ago.

Also seen around the galaxy are very faint tidal tails - wisps and shells of stars that have been torn from their original locations and flung into intergalactic space. These features are produced by complex gravitational effects on the orbits of stars when another galaxy comes too close. All of these signs point to a violent past during which NGC 1316 annexed other galaxies and suggest that the disruptive behaviour is continuing.

NGC 1316 is located about 60 million light-years away from Earth in the southern constellation of Fornax (The Furnace). It also bears the name Fornax A, reflecting the fact that it is the brightest source of radio emission in the constellation - and in fact the fourth brightest radio source in the entire sky.

This radio emission is driven by material falling into the supermassive black hole at the centre of the galaxy and has probably been provided with extra fuel by the interactions with other galaxies.

This very detailed new image from the MPG/ESO 2.2-metre telescope at ESO's La Silla Observatory in Chile was created by combining many individual images in the ESO archive. The aim of the original observations was to reveal the faintest features and study the disruption of this interesting system.

As a bonus the new picture also provides a window into the distant Universe far beyond the two bright galaxies in the foreground. Most of the faint fuzzy spots in the picture are much more distant galaxies - and there is a particularly dense concentration just to the left of NGC 1316.

.


Related Links
ESO
Stellar Chemistry, The Universe And All Within It






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





STELLAR CHEMISTRY
Galactic serial killer
Munich, Germany (SPX) Apr 04, 2014
Several clues in the structure of NGC 1316 reveal that its past was turbulent. For instance, it has some unusual dust lanes embedded within a much larger envelope of stars, and a population of unusually small globular star clusters. These suggest that it may have already swallowed a dust-rich spiral galaxy about three billion years ago. Also seen around the galaxy are very faint tidal tail ... read more


STELLAR CHEMISTRY
Russia's new S-500 system to destroy any target at any altitude

US to send two more missile defence ships to Japan: Hagel

Britain, France give MBDA missile development contract

US gains additional protection against ballistic missiles

STELLAR CHEMISTRY
US, UK parts in North Korea rocket

Britain, France sign anti-ship missile deal

Approval given for Griffin missile launch system

Lockheed Martin's DAGR Missile Scores a Perfect 16 of 16 in Flight Tests for US Army

STELLAR CHEMISTRY
Pentagon to organize drones in teams for sharing data, fighting together

Global Hawk Expands Satellite Communications Capability

'StratoBus' drone-satellite hybrid to provide new level of surveillance

Northrop Grumman, US Navy Complete Initial Flight Testing of the Triton Unmanned Aircraft System

STELLAR CHEMISTRY
USAF Satellite Will Improve Weather Prediction

Harris gets $131 million in orders from unidentifed customers

Spectrum Challenge Paves Way For More Reliable Radio Communications

Northrop Grumman Flies First Production Smart Node Pod

STELLAR CHEMISTRY
DARPA Launches Biological Technologies Office

Ukrainian industry ready to supply military with armored vehicles

Norway orders military trucks

Eaton intros power micro-grid system for forward-deployed troops

STELLAR CHEMISTRY
Eighteen countries ratify UN treaty on arms trade

French-Russian tank project on hold due to Ukraine crisis

Japan lifts own blanket arms export ban

Turkey sacks defence official involved in China arms talks

STELLAR CHEMISTRY
US seeks to reassure Japan amid Ukraine crisis fallout

My fellow citizens

Ukraine blames Russian agents for Kiev carnage

Fear for Philippine troops facing China 'enemy'

STELLAR CHEMISTRY
Never say never in the nano-world

Nanosheets and nanowires

Fabricating Nanostructures with Silk Could Make Clean Rooms Green Rooms

Scientists watch nanoparticles grow




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement All images and articles appearing on Space Media Network have been edited or digitally altered in some way. Any requests to remove copyright material will be acted upon in a timely and appropriate manner. Any attempt to extort money from Space Media Network will be ignored and reported to Australian Law Enforcement Agencies as a potential case of financial fraud involving the use of a telephonic carriage device or postal service.