The Visible and Infrared Survey Telescope for Astronomy (VISTA), the latest addition to ESO's Paranal Observatory (eso0949), has captured a dramatic new image of the Orion Nebula. The New telescope is the largest survey telescope in the world and is dedicated to mapping the sky at infrared wavelengths.
As in the many visible light pictures of this object, the new wide field VISTA image shows the familiar bat-like form of the nebula in the center of the picture as well as the fascinating surrounding area. At the very heart of this region lie the four bright stars forming the Trapezium, a group of very hot young stars pumping out fierce ultraviolet radiation that is clearing the surrounding region and making the gas glow. However, observing in the infrared allows VISTA to reveal many other young stars in this central region that cannot be seen in visible light. Many of these very young stars are still growing and are seen through the dusty clouds from which they form.
This wide-field view of the Orion Nebula (Messier 42) was taken with the VISTA infrared survey telescope at ESO's Paranal Observatory in Chile. The new telescopes huge field of view allows the whole nebula and its surroundings to be imaged in a single picture and its infrared vision also means that it can peer deep into the normally hidden dusty regions and reveal the curious antics of the very active young stars buried there. This image was created from images taken through Z, J and Ks filters in the near-infrared part of the spectrum. The exposure times were 10 minutes per filter. The image covers a region of sky about one degree by 1.5 degrees.
(Photo Credit: ESO/J. Emerson/VISTA. Acknowledgment: Cambridge Astronomical Survey Unit)
These youthful stars eject streams of gas with typical speeds of 700, 000 km/hour and many of the red features highlight the places where these gas streams collide with the surrounding gas, causing emission from excited molecules and atoms in the gas. There are also a few faint, red features below the Orion Nebula in the image, showing that stars form there too, but with much less vigor. These strange features are of great interest to astronomers studying the birth and youth of stars.
This new image shows the power of the VISTA telescope to image wide areas of sky quickly and deeply in the near-infrared part of the spectrum. The telescope is just starting to survey the sky and astronomers are anticipating a rich harvest of science from this unique ESO facility.
The Orion Nebula is a vast stellar nursery lying about 1350 light-years from Earth. Although the nebula is spectacular when seen through an ordinary telescope, what can be seen using visible light is only a small part of a cloud of gas in which stars are forming. Most of the action is deeply embedded in dust clouds and to see what is really happening astronomers need to use telescopes with detectors sensitive to the longer wavelength radiation that can penetrate the dust. VISTA has imaged the Orion Nebula at wavelengths about twice as long as can be detected by the human eye.
- PHYSICAL SCIENCES
- EARTH SCIENCES
- LIFE SCIENCES
- SOCIAL SCIENCES
Subscribe to the newsletter
Stay in touch with the scientific world!
Know Science And Want To Write?
- How Gut Bacteria Ensure A Healthy Brain – and Could Play A Role In Treating Depression
- Researchers Created A Laser Bullet To See What It Would Look Like - And Here It Is
- The Strange Organic Molecules In Titan's Atmosphere
- We're Too Late To Prevent 137,000 More Ebola Cases, Says Epidemiology Paper
- The Quote Of The Week - Shocked And Disappointed
- It Takes More Than Singing To Strike A Chord In Music Education
- Type 1 Diabetes Surges In White Kids
- "In a universe of infinite realities, maybe there is one where homeopathy works. Just not in this..."
- "y = yesterday, it is listed in some of the text, but I can try to make it clearer.They are an anomaly..."
- "On the luminosity leveling : my limited understanding is that at hl-lhc, the beam lifetime is completely..."
- "The “non-negotiable mathematical reasons” for raising the height of flood defences are in a..."
- "For background, look at Paul Bloom’s 2004 book Descartes’ Baby. This has interesting material..."
- Why Chobani reversed course, making yoghurt only from milk from cows not fed GMO grain
- Monterrey, California–Hotbed of anti-GMO activism–Home to new GMO corn farm
- Evolution is sometimes messy or even outright ridiculous
- Rich and famous embrace Vandana Shiva, wealthy self-described savior of the poor
- US Ebola hysteria and money pit highlight lack of resources to confront diseases that kill far more people
- Addiction can be measured by epigenetics