iSGTW - International Science Grid This Week
iSGTW - International Science Grid This Week
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Home > iSGTW 3 March 2010

Issue 164: iSGTW 03 March 2010

Black holes and their jets


Jets of particles streaming from black holes in far-away galaxies operate differently than previously thought, according to a study published recently in Nature.

High above the flat Milky Way galaxy, bright galaxies called blazars dominate the gamma-ray sky, discrete spots on the dark backdrop of the universe. As nearby matter falls into the black hole at the center of a blazar, “feeding” the black hole, it sprays some of this energy back out into the universe as a jet of particles.

“As the universe’s biggest accelerators, blazar jets are important to understand,” said Masaaki Hayashida, a corresponding author on the Nature paper and a research fellow with the Kavli Institute for Particle Astrphysics and Cosmology (KIPAC). “But how they are produced and how they are structured is not well understood. We’re still looking to understand the basics.”

Researchers had previously theorized that such jets are held together by strong magnetic field tendrils, while the jet’s light is created by particles revolving around these wisp-thin magnetic field “lines.”

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Opinion - Volunteer computing

Volunteering for a better world: harnessing technology, willing citizens

By using the strengths of distributed computing technologies, both specialized researchers and citizens have the opportunity to participate in a new way of doing science.

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Back to basics

Nice to meet you, authentically

We all know that authentication is a must when using grid resources but how much do we really know about it? Jens Jensen explains this “handshake” process.

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Reminder

Get in on the Name Game

ScienceIT? Cyberglobe? Chronicles of Griddick? Try your hand at suggesting new names and get a chance to win a small prize!

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Blog of the week

Out of the mouths of babes

What do a bunch of 11th and 12th grade students have to tweet about Argonne, Fermilab, and computing?

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Null
 iSGTW 22 December 2010

Feature – Army of Women allies with CaBIG for online longitudinal studies

Special Announcement - iSGTW on Holiday

Video of the Week - Learn about LiDAR

 Announcements

NeHC launches social media

PRACE announces third Tier-0 machine

iRODS 2011 User Group Meeting

Jobs in distributed computing

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 Mark your calendar

December 2010

13-18, AGU Fall Meeting

14-16, UCC 2010

17, ICETI 2011 and ICSIT 2011

24, Abstract Submission deadline, EGI User Forum

 

January 2011

11, HPCS 2011 Submission Deadline

11, SPCloud 2011

22, ALENEX11

30 Jan – 3 Feb, ESCC/Internet2

 

February 2011

1 - 4, GlobusWorld '11

2, Lift 11

15 - 16, Cloudscape III


More calendar items . . .

 

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