Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Super-detailed image of giant stellar nursery

18.04.2007
An international team of astronomers have collaborated to create the most detailed image ever produced of the Rosette Nebula (NGC 2237), a giant stellar nursery.

The new image was assembled using data from INT Photometric H-Alpha Survey of the Northern Galactic Plane (IPHAS) and covers four square degrees of sky, equivalent in size to about twenty times the size of the full moon. Robert Greimel from the University of Graz, Austria, will present results from the survey in a talk on Wednesday 18 April at the Royal Astronomical Society National Astronomy Meeting in Preston.

The Rosette nebula is a vast cloud of dust and gas spanning 100 light years and lying about 4500 light-years away, in the direction of the constellation of Monoceros. Inside the nebula lies a cluster of bright, massive, young stars (NGC 2244), whose strong stellar winds and radiation have cleared a hole in the nebula's centre. Ultraviolet light from these hot stars excites the surrounding nebula, causing it to glow.

Star formation is still active around the nebula, as proven by the presence of a very young infrared star (AFGL 961) still in its final stages of formation. It is thought that the young massive stars in the nebula will one day blow all the gas and dust away. The centre of the Rosette Nebula is about 1.8 degrees below the Galactic Plane, the glow from which can be seen at the top left (northeastern) corner of this image.

Due to the large size of the nebula on the sky, most large telescopes are unable to capture the entire nebula in one exposure and therefore the highest resolution images have been limited to small areas of the nebula. The IPHAS team is in the process of imaging the entire plane of our Galaxy and members of the survey team were able to combine almost 200 individual images to make this large and detailed H-alpha image.

Nick Wright from University College, London, commented, “"The superb quality of this image reflects the high quality and large amounts of data produced by the IPHAS survey. Using images like this one, many members of our collaboration are working hard to make important discoveries about the structure and content of our Galaxy."

Even more detailed images of the central parts of the Rosette Nebula have also been prepared by the IPHAS team, including one of dense dust lanes in the nebula where star formation may still be ongoing.

IPHAS is a survey of the entire Northern Galactic Plane at three different wavelengths, using the Wide Field Camera on the 2.5m Isaac Newton Telescope sited on La Palma in the Canary Islands. When complete, it will cover an area of 1800 square degrees. The survey is now almost finished and the first release of the catalogue is expected by June 2007. IPHAS will soon be followed by VPHAS+, a complementary Southern Galactic Plane survey using the ESO 2.5m VLT Survey Telescope (VST) in Chile.

Robert Massey | alfa
Further information:
http://www.ras.org.uk
http://www.nam2007.uclan.ac.uk/press.php

More articles from Physics and Astronomy:

nachricht Breaking the optical bandwidth record of stable pulsed lasers
24.01.2017 | Institut national de la recherche scientifique - INRS

nachricht European XFEL prepares for user operation: Researchers can hand in first proposals for experiments
24.01.2017 | European XFEL GmbH

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Scientists spin artificial silk from whey protein

X-ray study throws light on key process for production

A Swedish-German team of researchers has cleared up a key process for the artificial production of silk. With the help of the intense X-rays from DESY's...

Im Focus: Quantum optical sensor for the first time tested in space – with a laser system from Berlin

For the first time ever, a cloud of ultra-cold atoms has been successfully created in space on board of a sounding rocket. The MAIUS mission demonstrates that quantum optical sensors can be operated even in harsh environments like space – a prerequi-site for finding answers to the most challenging questions of fundamental physics and an important innovation driver for everyday applications.

According to Albert Einstein's Equivalence Principle, all bodies are accelerated at the same rate by the Earth's gravity, regardless of their properties. This...

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Breaking the optical bandwidth record of stable pulsed lasers

24.01.2017 | Physics and Astronomy

Choreographing the microRNA-target dance

24.01.2017 | Life Sciences

Spanish scientists create a 3-D bioprinter to print human skin

24.01.2017 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>