Events at the API

Past events

SPHERE and ZIMPOL workshop

Thursday 12 March 2015

We offer a workshop that will introduce the participants to the next generation high resolution imaging instrument SPHERE at the ESO VLT. While the workshop will give a general overview of the instrument, we will in particular concentrate on SPHERE’s visual wavelength range imager and polarimeter ZIMPOL. We have invited several speakers to not only introduce the instrument, but also show first scientific results.

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Lezing: Planetenjagers, een buitenaardse ontdekkingsreis

Tuesday 3 March 2015

Met de ontdekking van planeten rond andere sterren dan de zon is er de afgelopen decennia een heel nieuw vakgebied ontstaan. Sterrenkundige Lucas Ellerbroek volgde tijdens zijn promotie van dichtbij de zoektocht naar nieuwe planeten en dus ook naar mogelijk buitenaards leven. Tijdens deze lunchlezing vertelt hij over die wonderlijke zoektocht.

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Seminar Patrick Crumley: Super-Eddington Tidal Disruption Events: An Ideal Place to Probe Relativistic Jet Compositions and Emission Mechanisms.

Tuesday 27 January 2015

When a star wanders too close to the supermassive black hole at its galactic center, the tidal forces of the black hole overcome the self-gravity of the star. The star is torn apart in a tidal disruption event. A large fraction of the material from the star will fallback onto the black hole.

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Seminar Ke Fang: Ultrahigh Energy Cosmic Rays and Newborn Pulsars

Friday 23 January 2015

The workings of the most energetic astrophysical accelerators in the Universe are encoded in the origin of ultrahigh energy cosmic rays (UHECRs). Current observations by the Auger Observatory, the largest UHECR observatory, show a spectrum that agrees with an extragalactic origin, as well as an interesting transition in chemical composition from light element to heavier element as energy increases.

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Seminar Sean Griffin: VERITAS and the Bright Moonlight Program

Friday 23 January 2015

The VERITAS experiment measures Cherenkov light from air showers to study gamma rays. In this seminar I will provide an overview of the upgrade of the VERITAS array, details of the bright moonlight observing modes, and novel calibration techniques I have helped develop.

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PhD Defense Danai Antonopoulou

Wednesday 21 January 2015

On Wednesday January 21 at 14:00 Danai Antonopoulou will defend her thesis titled "Rotational glitches in radio pulsars and magnetars" in the Agnietenkapel.

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Seminar: The fluorescence detection of cosmic rays with silicon photomultiplier-based telescope

Tuesday 13 January 2015

Maurice Stephan - RWTH Aachen: In this talk I will present the telescope FAMOUS and the first absolute light flux measurements of stars and the night-sky with an SiPM-instrumented telescope. Such measurements are essential to evaluate the performance of telescopes regarding their sensitivity to signals from air showers.

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Phd Defense Theo Chousinho Khouri Silva

Tuesday 16 December 2014

On Tuesday December 16 at 12:00 Theo Chousinho Khouri Silva will defend his thesis titled "Oxygen-rich AGB stars with low mass-loss rate observed with Herschel" in the Agnietenkapel.

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PhD Defense Olga Hartoog

Wednesday 10 December 2014

On Wednesday December 10 at 14:00, Olga Hartoog will defend her thesis titled "Spectroscopy of the environments of long gamma-ray bursts and their progenitors" in the Agnietenkapel.

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PhD Defense Frank Tramper

Friday 28 November 2014

On Friday November 28 at 12:00 Frank Tramper will defend his thesis titled "The properties of low-metallicity massive stars" in the Agnietenkapel.

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