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<< Week of October 13 >>

Monday, October 12, 2015

Planet Hunting with ALMA Observations of Molecular Emission

Seminar: TAC Seminars | October 12 | 12 p.m. | 131A Campbell Hall

Ilse Cleeves, University of Michigan

Department of Astronomy

During the initial phases of planet-formation, young, self-luminous gas giants embedded in cold molecular disks can directly heat their local environment. The accretion luminosity from the planet can sublimate ices in the immediate vicinity that are otherwise fully frozen-out onto dust grains, creating a unique gas-phase signature. We have modeled the 3D chemical structure induced by the planet,...   More >

Daniel Lenz (Bonn): Revealing X_CO and the CIB: globally modelling dust and gas in the Milky Way

Seminar: RAL Seminars | October 12 | 3:10-4 p.m. | 131 Campbell Hall

Daniel Lenz, Bonn

Radio Astronomy Lab

The IRAS discovery of infrared cirrus clouds was the starting point of correlation studies of neutral atomic hydrogen and dust far-infrared emission. These yield important insights into the gas and dust physics, the accretion history of the Milky Way, the X_CO factor, and the distribution of the CO-dark molecular gas. So far, full-sky analyses were limited by the angular resolution of the HI data...   More >

Tuesday, October 13, 2015

Matthew Bailes (Swinburne): A CPU/GPU/FGPA telescope upgrade for Fast Radio Burst searching

Seminar: RAL Seminars | October 13 | 12:10-1 p.m. | 121 Campbell Hall

Matthew Bailes, Swinburne University

Radio Astronomy Lab

Fast Radio Bursts (FRBs) are examples of dispersed radio pulses with
such large sweeps in time that they appear to come from cosmological
distances. Swinburne has provided a new custom 250 Tflop GPU cluster
for the 18,000 m^2 Molonglo Observatory Synthesis Telescope to
find more FRBs. This upgrade combines FGPAs, CPUs and GPUs to produce fan beams that can be searched in dispersion for Fast...   More >

Wednesday, October 14, 2015

The KELT Transit Survey: Hot Planets around Hot, Bright Stars

Seminar: CIPS Seminars | October 14 | 3 p.m. | 131A Campbell Hall

Scott Gaudi, Ohio State

Department of Astronomy

The KELT Transit Survey consists of a pair of small-aperture, wide-angle automated telescope located at Winer Observatory in Sonoita, Arizona and the South African Astronomical Observatory (SAAO) in
Sutherland, South Africa. Together, they are surveying roughly 60% of the sky for transiting planets. By virtue of their small apertures (42 mm) and large fields-of-view (26 degrees x 26 degrees),...   More >

Thursday, October 15, 2015

Department Lunch

Presentation: Lunch Talks | October 15 | 12:30 p.m. | 131A Campbell Hall

Kenta Hotokezaka (Hebrew University) - "Short-lived Pu points to compact binary mergers as the origin of heavy r-process elements"; Isaac Shivvers (UC Berkeley) - "Yet Another Oddball Supernova"; Scott Gaudi (OSU, colloq. speaker) - A Tale of Two Decadal Surveys

Department of Astronomy

The Department Lunch Talk series is a weekly event that features three 20 minute talks presented mainly by local scientists of any level to present their work to a broad spectrum of the department and usually includes one short talk by the astronomy colloquium speaker of the day. Subjects can include personal scientific research, reporting on other work appearing in journals, education and public...   More >

The Demographics of Exoplanets

Colloquium: Astronomy Colloquia | October 15 | 4 p.m. | 1 LeConte Hall

Scott Gaudi, Ohio State

Department of Astronomy

Measurements of the demographics of exoplanets over a range of planet and host star properties provide fundamental empirical constraints on theories of planet formation and evolution. I will discuss various efforts to measure and synthesize exoplanet demographics over broad regions of parameter space, and show results from combining microlensing, radial velocity, and direct imaging surveys to...   More >

Saturday, October 17, 2015

Stardust: Analyses of cometary and interstellar dust in the laboratory

Lecture | October 17 | 11 a.m.-12 p.m. | 100 Genetics & Plant Biology Building

Andrew Westphal, UC Berkeley


Andrew Westphal, from UC Berkeley's Space Sciences Laboratory, tells us about his work to analyze the first samples of extraterrestrial materials from beyond the Moon.

General Public

All Audiences