17 January 2013

Hubble Space Telescope Captures Image of LHC 120-N 11 in the Large Magellanic Cloud


The Hubble Space Telescope captures an image of LHC 120-N 11, a region in the Large Magellanic Cloud, a galaxy 200,000 light years from Earth. (Image by Hubble/ESA)

The Large Magellanic Cloud is an irregular galaxy but has a clearly visible bar, and a single spiral-arm-like structure. These properties are similar to that of spiral galaxies leading to the belief that the LMC was once a small spiral galaxy but was pulled out of shape by the gravitational effect of the Milky Way.

Region LHC 120-N 11 in the LMC

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, 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) are among the brightest parts.

Video: Zoom in LHA 120-N11 in the Large Magellanic Cloud

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.

RELATED LINKS

Hubble Space Telescope
Hubble Telescope Reveals Galaxy NGC 922 Collided With Smaller Galaxy 330 Million Years Ago
Collisions Between Massive Elliptical Galaxies Result In Increased Mass Density
Rare Galaxy Class Identified - Green Bean Galaxy J2240
New Class of Galaxy-Black Hole System With Black Hole Of Mass Equal To 11 Billion Suns Discovered
Atacama Large Millimeter Array (ALMA) Provides Clear Picture of Radio Galaxy Centaurus A (NGC 5128)
Hubble's Advanced Camera for Surveys (ACS) Takes Detailed Images of Dwarf Galaxy NGC 2366 And Its Bright Nebula
VLT Detailed Image of Spiral Galaxy NGC 1187 That Has Hosted Two Supernova Explosions
New Image of NGC 5128 Centaurus A From The ESO Gives Deepest View
Galaxy Pair Arp 116 Imaged By Hubble Space Telescope
Possible Visual Evidence of a Dark Galaxy Spotted By VLT
VLT Survey Telescope (VST) Captures Powerful Images of Galaxies
Hubble Space Telescope Images 'Colliding' Galaxies
Massive Galactic Filament of Dark Matter Imaged By Hubble Space Telescope In 3D
Vista Captures 9 Gigapixel Image of the Center Of The Milky Way Galaxy
Stars in Star Clusters Observed To Age At Varying Rates
Astronomers Observe Rare Type 1A Supernova PTF 11kx
Baryon Oscillation Spectroscopic Survey (BOSS) Studying and Observing the Accelerating and Expanding Universe
Globular Star Cluster Messier 4 And Mysterious Source of Lithium