Wednesday colloquia

The API colloquia are weekly meetings where people give a 45 minute overview of their work. Afterwards there is time for discussion. At the end of each month the colloquia are jointly held with GRAPPA.

The contact person for the regular API colloquia is Selma de Mink.
The contact person for the joint GRAPPA/API colloquia is Jacco Vink.


Upcoming colloquia

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Wednesday 15 November 2017,

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Wednesday 22 November 2017,

TBD

Raymond Pierrehumbert

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Wednesday 29 November 2017, 11:00. Location: C4.174

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Wednesday 6 December 2017,

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Wednesday 13 December 2017,


Past colloquia

Airborne Infrared Astronomy with SOFIA

Hans Zinnecker — Deutsches SOFIA Institut, University of Stuttgart

SOFIA, short for Stratospheric Observatory for Infrared Astronomy, is a 2.7m telescope flying on a Boeing 747SP at altitudes of 12-14km, to detect and study mid- and far-infrared radiation that is blocked by water vapor in the earth's atmosphere and cannot reach the ground.

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Wednesday 19 July 2017, 11:30. Location: C4.174

A canabalistic model of white dwarf 1145+017

Zoe Leinhardt — University of Bristol

Post-main-sequence planetary science has been galvanized by the striking variability, depth and shape of the photometric transit curves due to objects orbiting white dwarf WD 1145+017, a star which also hosts a dusty debris disc and circumstellar gas, and displays strong metal atmospheric pollution.

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Wednesday 14 June 2017, 11:00. Location: C4.174

The most powerful transients in 3D

Philip Moesta — NASA Einstein fellow at UC Berkeley

Extreme core-collapse supernovae and neutron star mergers belong to the most energetic transients in the universe and are the leading candidates for both long and short gamma-ray burst engines. I will discuss the unique challenges in both input physics and computational modeling for these systems.

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Wednesday 7 June 2017, 11:00. Location: C4.174

Mapping accretion flows around supermassive black holes: AGN and TDEs

Erin Kara — University of Maryland

Most of the energy output from an Active Galactic Nucleus is released very close to the black hole, and therefore, probing the relativistic region of the inner accretion flow is essential to understanding how AGN work and effect their environments. In this talk, I will present a new way of probing these extreme, relativistic environments, through X-ray reverberation mapping, which allows us to map the gas falling on to the black hole and measure the effects of strongly curved spacetime close to the event horizon.

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Wednesday 31 May 2017, 11:00. Location: C4.174

Detecting and Characterising Planets with Direct Imaging

Beth Biller — Institute for Astronomy, University of Edinburgh, UK

Direct detection, and direct spectroscopy in particular, have great potential for advancing our understanding of extrasolar planets. In combinations with other methods of planet detection, direct imaging and spectroscopy will allow us to eventually: 1) fully map out the architecture of typical planetary systems and 2) study the physical properties of exoplanets (colors, temperatures, etc.) in depth.

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Wednesday 17 May 2017, 11:00. Location: C4.174