Seminars and Colloquia at ESO Garching and on the campus

January 2021

15/01/21 (Friday)
15:00, Webinar | ESO Garching
Special High Energy Seminar
Talk — The ACT SZ mass - MaDCoWS richness scaling relations
Jack Orlowski-Scherer (University of Pennsylvania)
14/01/21 (Thursday)
15:15, Webinar | ESO Garching
Munich Joint Astronomy Colloquium
Talk — Towards the direct detection of terrestrial exoplanets
Sascha Quanz (ETH Zürich)

Abstract

Since the discovery of the first extrasolar planet orbiting a Solar-like star in 1995, exoplanet science has been evolving into a highly dynamic field of modern astrophysics. Today we know more than 4000 exoplanets and thanks to ongoing efforts from the ground and from space this number keeps continuously increasing. While most of the planets have been discovered via indirect techniques, such as the radial velocity and transit techniques, the direct detection of (small, terrestrial) exoplanets will be required in order to test hypotheses concerning exoplanet habitability and the possible existence of bio-signatures in a statistically relevant sample of objects. In this talk, I will briefly review the current state of high-contrast exoplanet imaging today, discuss the challenges that need to be overcome in order to directly take a picture or a spectrum of an exoplanet, and present a way forward, how we will eventually be able to search for indications of biological activity in exoplanet atmospheres around nearby stars.

14:00, Webinar | ESO Garching
Theoretical High Energy Physics Seminar
Talk — NANOGrav and Cosmic Strings from Cosmological B-L Breaking
Kai Schmitz (CERN)
13/01/21 (Wednesday)
11:00, Webinar | ESO Garching
USM Colloquium
Talk — Average and not-so-average HI discs in the nearby Universe
Katharina Lutz (Strassbourg Astrophysical Data Center (CDS, France))
10:45, Webinar | ESO Garching
Informal Discussion
Talk — Nobel Prize Winners 2020
ESO Fellows & PhD Students (ESO)

Abstract

In this informal discussion, ESO students and fellows will present the Nobel Prizes awarded in 2020.
There will be a short presentation on each prize, focusing on the main results which led to it.
The list of presentations is:

Medicine
Harvey J. Alter, Michael Houghton and Charles M. Rice
Presentation by Avinash Chaturvedi

Chemistry
Emmanuelle Charpentier and Jennifer A. Doudna
Presentation by Rosita Kokotanekova

Literature
Louise Glück
Presentation by Dominika Itrich

Peace
World Food Program
Presentation by Teresa Paneque Carreno

Bank of Sweden Prize in Economic Sciences in Memory of Alfred Nobel
Paul R. Milgrom and Robert B. Wilson,
Presentation by Samuel Ruthven Ward

10:00, Webinar | ESO Garching
MPE Seminar
Talk — From disk to planet : unveiling planets and disks around young stars at the AU scale with the next generation of high-contrast, optical interferometric instruments
Guillaume Bourdarot (Univ. Grenoble Alpes)
12/01/21 (Tuesday)
12:00, Webinar | ESO Garching
Lunch Talk
Talk — High resolution ALMA imaging of SMGs
Bitten Gullberg (Chalmers University of Technology)

Abstract

Surveys of bright sub-millimetre sources with ALMA have provided the first unbiased view of intense star formation at high redshift and have allowed for detailed studies of their structures and star formation triggers. I will present a detailed analysis of high resolution (0.18") 870um continuum maps of ~150 sub-mm galaxies (SMGs) selected from the ALMA-SCUBA-2 UDS survey. These observations resolve the dust which traces ongoing star formation within the interstellar medium of these galaxies, and typically have infrared light profiles consistent with exponential discs. The profiles also reveal an axis ratio distribution best described by triaxial shapes. This suggests that the sub-millimetre emission is tracing bars, which are funnelling cold gas from the outer part of the galaxies into the centres. Previous studies have suggested that SMGs may be the high-redshift analogs to local merger-dominated ultra-luminous infrared galaxies (ULIRGs). However, these results and other recent studies, suggest that SMGs instead have disc morphologies. This means that ALMA - once again - is revealing important differences between high-redshift SMGs and local ULIRGs.

11:00, Webinar | ESO Garching
MPE Seminar
Talk — The properties and evolution of star-forming galaxies at high redshifts
Ugnė Dudzevičiūtė (Durham University) (Durham University)
11/01/21 (Monday)
17:15, Webinar | ESO Garching
Muenchener Physik Kolloquium
Talk — Influence of spin-orbit coupling on superconductivity
Elena Hassinger (TUM & MPI Chemische Physik)
15:30, Webinar | ESO Garching
MPA Institute Seminar
Talk — Primordial gravitational waves from inflation with gauge field
Ippei Obata (MPA)
07/01/21 (Thursday)
13:00, Webinar | ESO Garching
MPE Seminar
Talk — Deciphering the Kinematics of Galaxies in the first 1.5Gyr of the Universe
Gareth Jones (University of Cambridge)
04/01/21 (Monday)
11:00, Webinar | ESO Garching
MPE Seminar
Talk — 13CO Observations in Neary Galaxies on Kpc Scales
Yixian Cao (Laboratoire d’Astrophysique de Marseille)