. Medical and Hospital News .




STELLAR CHEMISTRY
A hidden treasure in the Large Magellanic Cloud
by Staff Writers
Paris (ESA) Jan 25, 2013


Nearly 200 000 light-years from Earth, the Large Magellanic Cloud, a satellite galaxy of the Milky Way, floats in space, in a long and slow dance around our galaxy. As the Milky Way's gravity gently tugs on its neighbour's gas clouds, they collapse to form new stars. In turn, these light up the gas clouds in a kaleidoscope of colours, visible in this image from the NASA/ESA Hubble Space Telescope. Credit: NASA, ESA. Acknowledgement: Josh Lake.

Nearly 200 000 light-years from Earth, the Large Magellanic Cloud, a satellite galaxy of the Milky Way, floats in space, in a long and slow dance around our galaxy. Vast clouds of gas within it slowly collapse to form new stars. In turn, these light up the gas clouds in a riot of colours, visible in this image from the NASA/ESA Hubble Space Telescope.

The Large Magellanic Cloud (LMC) is ablaze with star-forming regions. From the Tarantula Nebula, the brightest stellar nursery in our cosmic neighbourhood, to LHA 120-N 11, part of which is featured in this Hubble image, the small and irregular galaxy is scattered with glowing nebulae, the most noticeable sign that new stars are being born.

The LMC is in an ideal position for astronomers to study the phenomena surrounding star formation. It lies in a fortuitous location in the sky, far enough from the plane of the Milky Way that it is neither outshone by too many nearby stars, nor obscured by the dust in the Milky Way's centre. It is also close enough to study in detail (less than a tenth of the distance of the Andromeda Galaxy, the closest spiral galaxy), and lies almost face-on to us [1], giving us a bird's eye view.

LHA 120-N 11 (known as N11 for short) is a particularly bright region of the LMC, consisting of several adjacent pockets of gas and star formation. NGC 1769 (in the centre of this image) and NGC 1763 (to the right, see heic1011) are among the brightest parts.

In the centre of this image, a dark finger of dust blots out much of the light. While nebulae are mostly made of hydrogen, the simplest and most plentiful element in the Universe, dust clouds are home to heavier and more complex elements, which go on to form rocky planets like the Earth. Much finer than household dust (it is more like smoke), this interstellar dust consists of material expelled from previous generations of stars as they died.

The data in this image were identified by Josh Lake, an astronomy teacher at Pomfret School in Connecticut, USA, in the Hubble's Hidden Treasures image processing competition. The competition invited members of the public to dig out unreleased scientific data from Hubble's vast archive, and to process them into stunning images.

Josh Lake won first prize in the competition with an image contrasting the light from glowing hydrogen and nitrogen in N11. The image above combines the data he identified with additional exposures taken in blue, green and near infrared light.

[1] Although the Large Magellanic Cloud is generally classified as an irregular galaxy, it shares some features with spiral galaxies, including a clearly visible bar, and a single spiral-arm-like structure. It is thought that the LMC may be a small spiral galaxy that was pulled out of shape by the Milky Way.

.


Related Links
Hubble at ESA
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 Express :: SpaceWar Express :: TerraDaily Express :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News

Get Our Free Newsletters
Space - Defense - Environment - Energy - Solar - Nuclear

...





STELLAR CHEMISTRY
A Microquasar Makes a Giant Manatee Nebula
Charlottesville VA (SPX) Jan 22, 2013
A new view of a 20,000-year old supernova remnant demonstrates the upgraded imaging power of the National Science Foundation's (NSF) Karl G. Jansky Very Large Array (VLA) and provides more clues to the history of this giant cloud that resembles a beloved endangered species, the Florida Manatee. W50 is one of the largest supernova remnants ever viewed by the VLA. At nearly 700 light years a ... read more


STELLAR CHEMISTRY
Boss of Fukushima operator quizzed for negligence

Kerry urges 'fresh thinking' to tackle global woes

Philippines typhoon victims need more help: UN

Canada to resettle up to 5,000 Iranian, Iraqi refugees

STELLAR CHEMISTRY
AFRL Selects Surrey Satellite US to Evaluate Small Satellite Approach to GPS

Lockheed Martin Awarded Contract to Sustain Ground Station for Global Positioning System

China promotes Beidou technology on transport vehicles

New location system could compete with GPS

STELLAR CHEMISTRY
Bindi Irwin slams Hillary Clinton editors over essay

A relative from the Tianyuan Cave

Four-stranded 'quadruple helix' DNA structure proven to exist in human cells

Geneticist wants to revive Neanderthals

STELLAR CHEMISTRY
Namibia offers model to tackle poaching scourge

Malaysian is named head of UN biodiversity panel

S. Africa tries to capture thousands of runaway crocs

Treat illegal wildlife trade as serious crime: CITES

STELLAR CHEMISTRY
Two Cambodians die from bird flu: WHO

Origin of HIV put at millions of years ago

One in five were infected by pandemic flu

Swine flu kills three in Central Europe

STELLAR CHEMISTRY
China tries two Tibetan self-immolation 'inciters': media

Protestors march against Hong Kong leader

China's mass annual New Year migration begins

China dissident makes film on disputed death

STELLAR CHEMISTRY
11 kidnapped Sudanese freed in Darfur: media

Britain earmarks $3.56M for anti-piracy

Several killed in failed French raid to free Somalia hostage

Police among dead in gambling shootout

STELLAR CHEMISTRY
Outside View: Are stocks a sucker's bet?

Uruguay faces further dips in growth

China manufacturing growth hits two-year high

BoJ meeting expected to usher in fresh easing measures




The content herein, unless otherwise known to be public domain, are Copyright 1995-2012 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal 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