Author Topic: A half-billion stars and galaxies from NASA's WISE mission revealed -- many for  (Read 821 times)

0 Members and 1 Guest are viewing this topic.

Offline Buster's Uncle

  • Through art, I
  • Transcend
  • *
  • Posts: 45788
  • €236
  • View Inventory
  • Send /Gift
  • Someone thinks a Winrar is You!  Because there are times when people just need a cute puppy  Soft kitty, warm kitty, little ball of fur  
  • AC2 is my instrument, my heart, as I play my song.
  • Planet tales writer Smilie Artist Custom Faction Modder AC2 Wiki contributor Downloads Contributor
    • View Profile
    • My Custom Factions
    • Awards
Quote
A half-billion stars and galaxies from NASA's WISE mission revealed -- many for first time
 
Published: Thursday, March 15, 2012 - 08:35 in Astronomy & Space


NASA unveiled a new atlas and catalog of the entire infrared sky today showing more than a half billion stars, galaxies and other objects captured by the Wide-field Infrared Survey Explorer (WISE) mission. "Today, WISE delivers the fruit of 14 years of effort to the astronomical community," said Edward Wright, WISE principal investigator at UCLA, who first began working on the mission with other team members in 1998.
 
WISE launched Dec. 14, 2009, and mapped the entire sky in 2010 with vastly better sensitivity than its predecessors. It collected more than 2.7 million images taken at four infrared wavelengths of light, capturing everything from nearby asteroids to distant galaxies. Since then, the team has been processing more than 15 trillion bytes of returned data. A preliminary release of WISE data, covering the first half of the sky surveyed, was made last April.
 
The WISE catalog of the entire sky meets the mission's fundamental objective. The individual WISE exposures have been combined into an atlas of more than 18,000 images covering the sky and a catalog listing the infrared properties of more than 560 million individual objects found in the images. Most of the objects are stars and galaxies, with roughly equal numbers of each. Many of them have never been seen before.
 
WISE observations have led to numerous discoveries, including the elusive, coolest class of stars. Astronomers hunted for these failed stars, called "Y-dwarfs," for more than a decade. Because they have been cooling since their formation, they don't shine in visible light and could not be spotted until WISE mapped the sky with its infrared vision.
 
WISE also took a poll of near-Earth asteroids, finding there are significantly fewer mid-size objects than previously thought. It also determined NASA has found more than 90 percent of the largest near-Earth asteroids.
 
Other discoveries were unexpected. WISE found the first known "Trojan" asteroid to share the same orbital path around the sun as Earth. One of the images released today shows a surprising view of an "echo" of infrared light surrounding an exploded star. The echo was etched in the clouds of gas and dust when the flash of light from the supernova explosion heated surrounding clouds. At least 100 papers on the results from the WISE survey already have been published. More discoveries are expected now that astronomers have access to the whole sky as seen by the spacecraft.
 
"With the release of the all-sky catalog and atlas, WISE joins the pantheon of great sky surveys that have led to many remarkable discoveries about the universe," said Roc Cutri, who leads the WISE data processing and archiving effort at the Infrared and Processing Analysis Center at the California Institute of Technology in Pasadena. "It will be exciting and rewarding to see the innovative ways the science and educational communities will use WISE in their studies now that they have the data at their fingertips."
 
NASA's Jet Propulsion Laboratory (JPL) in Pasadena, Calif., manages and operates WISE for NASA's Science Mission Directorate in Washington. The mission was competitively selected under NASA's Explorers Program, which is managed by NASA's Goddard Space Flight Center in Greenbelt, Md. The science instrument was built by the Space Dynamics Laboratory in Logan, Utah, and the spacecraft was built by Ball Aerospace and Technologies Corp., in Boulder, Colo. Science operations, data processing and archiving take place at the Infrared Processing and Analysis Center at the California Institute of Technology in Pasadena. Caltech manages JPL for NASA.
 
For a collection of WISE images released to date, visit: http://wise.ssl.berkeley.edu/gallery_images.html
 
An introduction and quick guide to accessing the WISE all-sky archive for astronomers is online at: http://wise2.ipac.caltech.edu/docs/release/allsky/
 
For more information about WISE, visit: http://www.nasa.gov/wise
http://esciencenews.com/articles/2012/03/15/a.half.billion.stars.and.galaxies.nasas.wise.mission.revealed.many.first.time

 

* User

Welcome, Guest. Please login or register.
Did you miss your activation email?


Login with username, password and session length

Select language:

* Community poll

SMAC v.4 SMAX v.2 (or previous versions)
-=-
18 (6%)
XP Compatibility patch
-=-
9 (3%)
Gog version for Windows
-=-
77 (29%)
Scient (unofficial) patch
-=-
29 (11%)
Kyrub's latest patch
-=-
14 (5%)
Yitzi's latest patch
-=-
85 (32%)
AC for Mac
-=-
2 (0%)
AC for Linux
-=-
5 (1%)
Gog version for Mac
-=-
10 (3%)
No patch
-=-
13 (4%)
Total Members Voted: 262
AC2 Wiki Logo

* Random quote

As the writhing, teeming mass of mindworms swarmed over the outer perimeter, we saw the defenders recoil in horror. 'Stay calm! Use your flame guns!' shouted the commander, but to no avail. It is well know that the Mind Worm Boil uses psychic terror to paralyze its prey, and then carefully implants ravenous larvae into the brains of its still-conscious victims. Even with the best weapons, only the most disciplined troops can resist this horrific attack.
~Lady Deidre Skye 'Our Secret War'

* Select your theme

*