Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

UK Astronomers look forward to looking back

19.08.2003


When NASA launches its Space Infrared Telescope Facility (SIRTF) - the agency’s fourth ‘Great Observatory’ - later this week, astronomers around the world will be looking forward to using one of the most powerful time machines ever built.



Among those anticipating the opportunity to look back billions of years to an era when the universe was in its youth are Professor Michael Rowan-Robinson (Imperial College London) and Dr. Sebastian Oliver (University of Sussex), who will be participating in the international SIRTF Wide-area InfraRed Extragalactic (SWIRE) survey.

Taking advantage of SIRTF’s ability to detect infrared radiation (heat) from the coolest objects in the universe, the SWIRE team will study galaxies located up to 10 billion light years away where infant stars are beginning to emerge from the dust clouds in which they were born.


Over a period of nine months, the SWIRE survey will observe seven areas of the sky covering a total of 65 square degrees - equivalent to the area taken up by 360 full moons. These areas have been carefully selected because they are exceptionally transparent due to an absence of Galactic dust.

Using all 7 SIRTF wavebands (3.6, 4.5, 5.8, 8, 24, 70 and 160 microns), SWIRE is expected to detect more than 1 million infrared galaxies, many of them dusty, star-forming galaxies that existed when the universe was only about three billion years old.

“We shall be studying star-forming galaxies and quasars at high redshifts, looking far deeper in the infrared than any previous survey,” said Professor Rowan-Robinson, Deputy Principal Investigator for the SWIRE programme.

“By looking back through almost 90% of the universe’s history, we shall be able to look back to a period when star formation was much more frequent than it is today,” he added. “This will enable us to trace the evolution of star formation from very early times.”

“This is the most exciting and the most important project I have ever been involved with,” said Sebastian Oliver, a SWIRE Co-Investigator. “Our infrared survey will be combined with studies by ground-based telescopes (such as the UK Infrared Telescope in Hawaii) and by orbiting observatories, such as the Hubble Space Telescope, Chandra and XMM-Newton, that study the universe at other wavelengths.”

“The SWIRE survey will provide our first glimpse of many distant galaxies,” he added.

“Long ago, galaxies were much closer together, and we think that colliding galaxies triggered periods of rapid star birth and quasar activity. We expect to see thousands of colliding galaxies in the ancient universe, and this will help us to explain how galaxies grew and evolved.”

Professor Michael Rowan-Robinson | alfa
Further information:
http://www.ras.org.uk/
http://sirtf.caltech.edu/
http://astro.ic.ac.uk/

More articles from Physics and Astronomy:

nachricht Further Improvement of Qubit Lifetime for Quantum Computers
09.12.2016 | Forschungszentrum Jülich

nachricht Electron highway inside crystal
09.12.2016 | Julius-Maximilians-Universität Würzburg

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: Electron highway inside crystal

Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.

Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Researchers identify potentially druggable mutant p53 proteins that promote cancer growth

09.12.2016 | Life Sciences

Scientists produce a new roadmap for guiding development & conservation in the Amazon

09.12.2016 | Ecology, The Environment and Conservation

Satellites, airport visibility readings shed light on troops' exposure to air pollution

09.12.2016 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>