From Science Olympiad to Scientist: Jeffrey Silverman

As part of our efforts to work with the formal education community (that is, generally K-12 schools), the Chandra EPO team works with the National Science Olympiad. The Olympiad is an excellent science competition that involves middle and high school teams from all 50 states, often getting kids involved at an even earlier age.

Jeffrey Silverman was part of the very successful Science Olympiad team from Troy High School (Fullerton, CA) team in 2001. He is now finishing his Ph.D. in astrophysics from the University of California at Berkeley, where he works mainly on exploding stars known as supernovas including 2006gy and this recent news-grabbing event. We asked Jeffrey to share with us some of his experiences during the Science Olympiad and how they helped shape his choices once he got to college and now into graduate school and beyond.

NASA'S Chandra Finds New Evidence on Origin of Supernovas

This Chandra image of the Tycho supernova remnant contains new evidence for what triggered the original supernova explosion. Tycho was formed by a Type Ia supernova, a category of stellar explosion used in measuring astronomical distances because of their reliable brightness. In the lower left region of Tycho is a blue arc of X-ray emission. Several lines of evidence support the conclusion that this arc is due to a shock wave created when a white dwarf exploded and blew material off the surface of a nearby companion star.

Chandra Observes Extraordinary Event

GRB 110328A

The center of this image contains an extraordinary gamma-ray burst (GRB) called GRB 110328A, observed with NASA's Chandra X-ray Observatory. This Chandra observation confirms the association of GRB 110328A with the core of a distant galaxy and shows that it was an exceptionally long lived and luminous event compared to other GRBs.

2011 Einstein Fellows Announced

This week, NASA announced the selection of three prestigious fellowships, each named after a distinguished scientist: Einstein, Hubble, and Sagan. Every year, NASA awards these fellowships to recent Ph.D.s in astronomy, physics or a related field. The Chandra X-ray Center oversees the Einstein Fellowships, which cover the topics in high-energy astrophysics. The Space Telescope Science Institute runs the Hubble Fellowships, and JPL is in charge of the Sagan ones.

Exploding Stars and Stripes

Tycho's Supernova Remnant

This image comes from a very deep Chandra observation of the Tycho supernova remnant, produced by the explosion of a white dwarf star in our Galaxy. Low-energy X-rays (red) in the image show expanding debris from the supernova explosion and high energy X-rays (blue) show the blast wave, a shell of extremely energetic electrons . These high-energy X-rays show a pattern of X-ray "stripes" never previously seen in a supernova remnant. By rolling the mouse over the color image above, two regions containing stripes in the high energy image can be seen superimposed on the full color version. Some of the brightest stripes can also directly be seen in the full color image, on the right side of the remnant pointing from the outer rim to the interior. The stellar background is from the Digitized Sky Survey and only shows stars outside the remnant.

Sound in Space

People seem to be fascinated with the concept of sound in space. This was just underscored for us when we saw this great TED talk by physicist Janna Levin.

We have some personal experience with the public’s interest in the topic. Way back in 2003, we did a story on the black hole at the center of the Perseus Cluster. The energy generated by the giant black hole was responsible for sound waves propagating through the intercluster gas. (If you're curious, the black hole was bleating out a B flat some 52 octaves below middle C.)

Perseus Cluster