Narrow Search
 
 
Advanced Search

Browse All : Images of Amsterdam and Goddard Space Flight Center (GSFC)

Printer Friendly
1-15 of 15
     
     
Dying Star Sculpts Rungs of …
Title Dying Star Sculpts Rungs of Gas and Dust
Dying Star Sculpts Rungs of …
Title Dying Star Sculpts Rungs of Gas and Dust
Hubble Finds that Earth is S …
Title Hubble Finds that Earth is Safe from One Class of Gamma-ray Burst
Hubble Finds that Earth is S …
Title Hubble Finds that Earth is Safe from One Class of Gamma-ray Burst
Hubble Finds that Earth is S …
Title Hubble Finds that Earth is Safe from One Class of Gamma-ray Burst
Hubble Finds that Earth is S …
Title Hubble Finds that Earth is Safe from One Class of Gamma-ray Burst
Hubble Finds that Earth is S …
Title Hubble Finds that Earth is Safe from One Class of Gamma-ray Burst
Hubble Finds that Earth is S …
Title Hubble Finds that Earth is Safe from One Class of Gamma-ray Burst
Hubble Finds that Earth is S …
Title Hubble Finds that Earth is Safe from One Class of Gamma-ray Burst
Hubble Finds that Earth is S …
Title Hubble Finds that Earth is Safe from One Class of Gamma-ray Burst
The Carina Nebula: Star Birt …
Title The Carina Nebula: Star Birth in the Extreme
General Information What is Hubble Heritage? A monthly showcase of new and archival Hubble images. Go to the Heritage site. In celebration of the 17th anniversary of the launch and deployment of NASA's Hubble Space Telescope, a team of astronomers is releasing one of the largest panoramic images ever taken with Hubble's cameras. READ: Junior version of this article Amazing Space Learn about this story in the Star Witness, a science newspaper available on our sister site, Amazing Space. [ http://amazing-space.stsci.edu/news/archive/2007/02/ ] It is a 50-light-year-wide view of the central region of the Carina Nebula where a maelstrom of star birth &#151, and death &#151, is taking place. This image is a mosaic of the Carina Nebula assembled from 48 frames taken with Hubble's Advanced Camera for Surveys. The Hubble images were taken in the light of neutral hydrogen during March and July 2005. Color information was added with data taken in December 2001 and March 2003 at the Cerro Tololo Inter-American Observatory in Chile. Red corresponds to sulfur, green to hydrogen, and blue to oxygen emission.
Hubble Finds that Earth is S …
Title Hubble Finds that Earth is Safe from One Class of Gamma-ray Burst
Hubble Finds that Earth is S …
Title Hubble Finds that Earth is Safe from One Class of Gamma-ray Burst
Optical Transient Near GRB97 …
Title Optical Transient Near GRB970508 Shows Distant Redshift
Explanation The GRB distance scale controversy may have just ended with a flash [ http://astro.caltech.edu/~george/grb.html ]. Gamma Ray Bursts [ http://antwrp.gsfc.nasa.gov/apod/ap961123.html ] (GRBs) are powerful explosions occurring in seemingly random positions on the sky. They are so featureless and so poorly resolved [ http://antwrp.gsfc.nasa.gov/apod/ap970407.html ], however, that their distances could not be determined. Last Thursday, May 8th, the orbiting Beppo-Sax Satellite [ http://bepposax.gsfc.nasa.gov/ ] detected and precisely located a GRB (GRB970508), quickly relaying its position to astronomers. Within hours, many of the world's most powerful telescopes [ http://antwrp.gsfc.nasa.gov/apod/ap960715.html ] were re-pointed in the direction of the new GRB. There they found a faint but variable optical source [ http://www.astro.uva.nl/paulgr/grb970508.html ]: a potential counterpart to the gamma-ray burst that was getting brighter. Most importantly, continued scrutiny showed that this optical transient [ http://antwrp.gsfc.nasa.gov/apod/ap970422.html ] had absorption lines with a redshift [ http://antwrp.gsfc.nasa.gov/apod/lib/glossary.html#redshift ] of about 0.8 - the distance scale of galaxies [ http://antwrp.gsfc.nasa.gov/apod/ap970209.html ] and quasars [ http://antwrp.gsfc.nasa.gov/apod/ap961125.html ]. If this source and GRB970508 are related, the GRB itself must be many billions of light-years away and the 30-year controversy [ http://antwrp.gsfc.nasa.gov/diamond_jubilee/debate_1995.html ] on the distance scale to GRBs will draw dramatically to a close. GRBs could move from the realm of astronomical mystery to useful beacons of the early universe. Above is a "negative" image of the GRB970508 field [ http://www.astro.uva.nl/paulgr/grb970508.html ], located near the north celestial pole, taken hours after the initial flash of gamma rays. The faint optical transient source is inside the box. North is up and the image is 2.5 arcminutes across (about a tenth the size of the full moon).
A Gamma-Ray Burst Supernova?
Title A Gamma-Ray Burst Supernova?
Explanation Did a gamma-ray burst [ http://www.sciam.com/0797issue/0797fishman.html ] precede this supernova [ http://antwrp.gsfc.nasa.gov/apod/ap970124.html ]? This intriguing suggestion [ http://www.astro.uva.nl/titus/grb980425.html ] came to light yesterday [ http://cfa-www.harvard.edu/iauc/06800/06895.html#Item1 ] with the discovery of an evolving supernova that is potentially coincident [ http://cfa-www.harvard.edu/iauc/06800/06896.html#Item1 ] with the position of gamma-ray burst GRB 980425 [ http://fire.berkeley.edu:8080/?read=15 ], which occurred just two weeks ago [ http://cfa-www.harvard.edu/iauc/06800/06884.html#Item1 ]. If true, this would tie together the two most violent phenomena [ http://antwrp.gsfc.nasa.gov/apod/ap980507.html ] known in the universe. The supernova, indicated by the arrow, appears to be somewhat unusual, for one reason because of its extremely bright radio emission [ http://cfa-www.harvard.edu/iauc/06800/06896.html#Item1 ]. The host galaxy [ http://antwrp.gsfc.nasa.gov/apod/ap970625.html ] has a redshift of 0.0085, placing it at the relatively close distance of about 125 million light years away. Today it remains undetermined whether the two events are related [ http://xxx.lanl.gov/abs/astro-ph/9712123 ] - perhaps the evolution of the supernova [ http://antwrp.gsfc.nasa.gov/apod/ap980302.html ] over the next few weeks will provide some clues.
1-15 of 15