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<< January 2015 >>

Thursday, January 22, 2015

But wait! There's more!: A Wealth of Science from Millisecond Pulsars

Colloquium: Astronomy Colloquia | January 22 | 4:10 p.m. | 1 LeConte Hall

Scott Ransom, NRAO

Department of Astronomy

Pulsars are some of astrophysics' most exotic objects. We currently know of about 2400 pulsars in our Galaxy, but a small subset of them, the millisecond pulsars (MSPs), are truly remarkable. These systems are notoriously hard to detect, yet their numbers have more than doubled in the past 4 years via surveys using the world's most sensitive telescopes, new instrumentation, and huge amounts of...   More >

Thursday, January 29, 2015

The Active South Polar Terrain of Enceladus

Colloquium: Astronomy Colloquia | January 29 | 4:10 p.m. | 1 LeConte Hall

Carolyn Porco, SSI

Department of Astronomy

In 2005, the Cassini mission at Saturn discovered a remarkable and unique geological province at high southern latitudes on the small icy moon, Enceladus. Towering jets of powder-sized, salty ice particles, along with water vapor laced with organic compounds and accompanied by a shocking ~5GW of thermal radiation, vent from four prominent fractures crossing the moon's 500-km-wide south polar...   More >