Media Telecon:

DISCOVERY OF MOST RECENT SUPERNOVA IN OUR GALAXY

May 14, 2008 (1 p.m. EDT)

Scientists have used NASA's Chandra X-ray Observatory and NRAO's Very Large Array to discover the most recent supernova explosion in our Galaxy, as measured in Earth's time frame.

Live audio of the teleconference will be streamed online at: http://www.nasa.gov/newsaudio

Instant replays are generally available one hour after a call ends, and will be through MAY-21-08 10:59 PM (CT)

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Toll: 203-369-1825

A video file about the discovery will air on NASA Television on May 14 at noon and 1pm (check the NASA TV schedule for additional times). NASA TV is carried on an MPEG-2 digital signal accessed via satellite AMC-6, at 72 degrees west longitude, transponder 17C, 4040 MHz, vertical polarization. NASA TV is available in Alaska and Hawaii on AMC-7 at 137 degrees west longitude, transponder 18C, at 4060 MHz, horizontal polarization.

Panelists:

Dr. Stephen Reynolds,

Dr. Dave Green,

Dr. Robert Kirshner,

Graphics:

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Supplementary Graphics

Additional Information

North Carolina State UniversityUniversity of CambridgeHarvard Smithsonian Center for Astrophysics1985 VLA and 2007 Chandra images of the supernova remnant G1.9+0.3, with a circle for size comparison.(Cont'd). Blink between 1985 VLA and 2007 Chandra images (move cursor over image).Optical image of the plane of the Milky Way, with G1.9+0.3 labeled.1985 VLA (radio) and 2008 VLA (X-ray) images of the supernova remnant G1.9+0.3.(cont'd). Blink between 1985 and 2008 VLA images (move cursor over image).Chandra images of historical supernova remnants in the Milky Way.An artist's impression of the Milky Way with positions of historial supernovas and G1.9+0.3.A composite image of G1.9+0.3 with Chandra X-ray (2007, orange); VLA Radio (1985, blue)An artist's close-up view of the supernova that caused G1.9+0.3.An animation showing a flight into the Milky Way's center and a supernova explosion there.A movie showing a large 2MASS image, with zooms to the Galactic Center and G1.9+0.3.A Chandra X-ray mosaic of the Milky Way's plane (galaxy center in middle; G1.9+0.3 is outside this two degree wide field).This extraordinarily deep Chandra image shows Cassiopeia A, the previous record holder for the youngest Galactic supernova remnant.Landscape photo of the Very Large Array antenna with the moon.Chandra X-ray Observatory - Spacecraft Illustration with Galactic Center Background.

Paper Title:THE YOUNGEST GALACTIC SUPERNOVA REMNANT: G1.9+0.3 (pdf format)

Full Author List: Stephen P. Reynolds(Department of Physics, North Carolina State University), Kazimierz J. Borkowski (Department of Physics, North Carolina State University), David A. Green (Cavendish Laboratory; Cambridge, UK), Una Hwang (NASA/GSFC), Ilana Harrus (NASA/GSFC) & Robert Petre (NASA/GSFC).

The radio expansion and brightening of the very young supernova remnant G1.9+0.3 (pdf format), David A. Green et al. 2008, MNRAS Letters Steve Reynolds: reynolds@ncsu.edu , 919-515-7751Dave Green: dag@mrao.cam.ac.uk , +44 1223 337305Bob Kirshner: rkirshner@cfa.harvard.edu , 617-495-7519