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<< October 2014 >>

Thursday, October 2, 2014

Using Young Disks as Laboratories for Studying Planet Formation

Colloquium: Astronomy Colloquia | October 2 | 4:10 p.m. | 2 LeConte Hall


Hannah Jang-Condell, Wyoming

Department of Astronomy


Exoplanets have been discovered in orbits as close as 0.05 AU, and as distant as hundreds of AU. Hence, exoplanets are a hot topic, but they are also pretty cool. How do such disparate planetary systems arise? The best way to learn is to directly study planets while they are forming in young circumstellar disks. Gas-rich protoplanetary disks represent early stages of planet formation, when gas...   More >

Thursday, October 9, 2014

Is Earth's Composition Just Skin Deep?

Colloquium: Astronomy Colloquia | October 9 | 4:10 p.m. | 2 LeConte Hall


Zoe Leinhardt, Bristol

Department of Astronomy


Extrasolar planets are diverse and plentiful ranging from moon-mass rocky objects to gaseous giants ten times the mass of Jupiter. The environments, orbits, and stars that harbour these planets are also varied with some planets orbiting close to their parent stars on small circular orbits while others follow extremely eccentric or retrograde paths. We have found planets around old dead stars,...   More >

Thursday, October 16, 2014

CAMPARE and Cal-Bridge: Promoting Astronomy and Physics for Underrepresented Students in California

Colloquium: Astronomy Colloquia | October 16 | 4:10 p.m. | 2 LeConte Hall


Alexander Rudolph, Cal Poly

Department of Astronomy


I will describe two programs, CAMPARE and Cal-Bridge, with the common mission of increasing participation of groups traditionally underrepresented in astronomy, particularly underrepresented minorities and women, through summer research opportunities, in the case of CAMPARE, scholarships in the case of Cal-Bridge, and significant mentoring in both programs, leading to an increase in their numbers...   More >

Thursday, October 23, 2014

Opulence and Thrift in the Interstellar Medium

Colloquium: Astronomy Colloquia | October 23 | 4:10 p.m. | 2 LeConte Hall


Eve Ostriker, Princeton

Department of Astronomy


Star formation governs many aspects of galactic structure and evolution, but it is even move intimately linked to the structure and evolution of the interstellar medium (ISM). The rate of star formation determines the rate at which gas is locked into orbit within a galactic halo, and (together with galactic winds) determines the depletion of a galaxy's store of baryons. In disk galaxies, star...   More >

Thursday, October 30, 2014

From Shocks to Resonances: Formation of close-in Super-Earths and Mini-Neptunes

Colloquium: Astronomy Colloquia | October 30 | 4:10 p.m. | 2 LeConte Hall


Hilke Schlichting, MIT

Department of Astronomy


Recent observations by the Kepler space telescope have led to the discovery of more than 4000 exoplanet candidates consisting of many systems with Earth- to Neptune-sized objects that reside well inside the orbit of Mercury, around their respective host stars. How and where these close-in planets formed is one of the major unanswered questions in planet formation. I will present recent results...   More >