Seminars and Colloquia at ESO Garching

For ESO and ESO-related Conferences and Workshops in Europe and Chile please check the main Conferences and Workshops page.

September 2014

30.09.14 (Tuesday)
12:30, ESO auditorium "Telescopium", Lunch Talk
"Modelling Galaxies within state-of-the-art Cosmological Simulations"
Violeta Gonzalez-Perez (University of Durham)
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"Modelling Galaxies within state-of-the-art Cosmological Simulations"

Violeta Gonzalez-Perez (University of Durham)

Abstract
Galaxies are thought to form within haloes of dark matter, whose gravity allows the galaxies to exist. The formation and evolution of galaxies is affected by a multitude of other processes besides gravity and computational modelling is the only way we can attempt to understand all these processes. In this work we present a new development of the GALFORM semi-analytical model of galaxy formation and evolution, which exploits a Millennium Simulation-class N-body run performed with the Wilkinson Microwave Anisotropy Probe 7 cosmology. We use this new model to study the impact of the choice of stellar population synthesis (SPS) model on the predicted evolution of the galaxy luminosity function. Besides this model, we have generated a new GALFORM flavour constructed from merger trees derived from EAGLE, a hydrodynamical simulation. We compare results from both GALFORM and EAGLE.

October 2014

02.10.14 (Thursday)
14:00 - 17:30, ESO room "Fornax"
SPHERE/ESO Mini Workshop
(via video link from ESO Santiago)
Agenda:
14:00 - 15:00 : Overview of the instrument
15:00 - 15:30 : Operations with extreme AO, SAXO
15:30 - 16:00 : break
16:00 - 17:30 : Science cases, strengths + limitations, SPHERE or NACO?
02.10.14 (Thursday)
16:15, ESO auditorium "Telescopium", Munich Joint Astronomy Colloquium
"Recombination and Relativistic Effects in Shock Breakouts and Cooling Envelopes: Supernovae and Low Luminosity Gamma Ray Bursts"
Re'em Sari (Racah Institute of Physics, the Hebrew University, Jerusalem)
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"Recombination and Relativistic Effects in Shock Breakouts and Cooling Envelopes: Supernovae and Low Luminosity Gamma Ray Bursts"

Re'em Sari (Racah Institute of Physics, the Hebrew University, Jerusalem)

Abstract
Stellar explosions in Supernovae or Gamma Ray Bursts begin with the launching of a shock into the stellar envelope. As the shock wave propagates towards the edge of the star, the decreasing density causes the shock to accelerate, and eventually break out of the star. We show that for fast shocks, with v>10,000km/s, the radiation is out of equilibrium causing the breakout to appear in x-rays rather than the previously estimated UV. Later, recombination in the cooling expanding envelope may lead to the flat lightcurve of type-IIp supernovae. Finally, we argue, that relativistic effects in extreme breakouts may be the sources of low luminosity Gamma Ray Bursts, and show that their properties match well with our theory.
09.10.14 (Thursday)
16:15, ESO auditorium "Telescopium", Munich Joint Astronomy Colloquium
"(topic t.b.a.)"
Thomas Janka
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"(topic t.b.a.)"

Thomas Janka

Abstract
(available soon)
14.10.14 (Tuesday)
12:30, ESO room "Fornax", Lunch Talk
"(topic t.b.a.)"
Viki Joergens (MPIA Heidelberg)
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"(topic t.b.a.)"

Viki Joergens (MPIA Heidelberg)

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16.10.14 (Thursday)
16:15, ESO auditorium "Telescopium", Munich Joint Astronomy Colloquium
"(topic t.b.a.)"
Vernesa Smolcic
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"(topic t.b.a.)"

Vernesa Smolcic

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21.10.14 (Tuesday)
12:30, ESO room 231/232, Lunch Talk
"(topic t.b.a.)"
Paola Oliva (Swinburne University, Australia)
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"(topic t.b.a.)"

Paola Oliva (Swinburne University, Australia)

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23.10.14 (Thursday)
16:15, ESO auditorium "Eridanus", Munich Joint Astronomy Colloquium
"(topic t.b.a.)"
Jo Bovy
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"(topic t.b.a.)"

Jo Bovy

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28.10.14 (Tuesday)
12:30, ESO room "Fornax", Lunch Talk
"(topic t.b.a.)"
Fabrizio Arrigoni (MPIA Heidelberg)
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"(topic t.b.a.)"

Fabrizio Arrigoni (MPIA Heidelberg)

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30.10.14 (Thursday)
16:15, ESO auditorium "Telescopium", Munich Joint Astronomy Colloquium
"(topic t.b.a.)"
Sean McGee
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"(topic t.b.a.)"

Sean McGee

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November 2014

04.11.14 (Tuesday)
12:30, ESO auditorium "Telescopium", Lunch Talk
"(topic t.b.a.)"
Bram Venemans (MPIA Heidelberg)
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"(topic t.b.a.)"

Bram Venemans (MPIA Heidelberg)

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06.11.14 (Thursday)
16:15, ESO auditorium "Telescopium", Munich Joint Astronomy Colloquium
"Cosmology with galaxy redshift surveys"
Gigi Guzzo
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"Cosmology with galaxy redshift surveys"

Gigi Guzzo

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11.11.14 (Tuesday)
12:30, ESO room "Fornax", Lunch Talk
"(topic t.b.a.)"
Eduardo Banados (MPIA Heidelberg)
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"(topic t.b.a.)"

Eduardo Banados (MPIA Heidelberg)

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13.11.14 (Thursday)
16:15, ESO auditorium "Telescopium", Munich Joint Astronomy Colloquium
"(topic t.b.a.)"
Cecilia Cecarelli
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"(topic t.b.a.)"

Cecilia Cecarelli

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20.11.14 (Thursday)
16:15, ESO auditorium "Telescopium", Munich Joint Astronomy Colloquium
"Nuclear Activity in Nearby Galaxies: Insights into Accretion and Jet Physics"
Luis Ho
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"Nuclear Activity in Nearby Galaxies: Insights into Accretion and Jet Physics"

Luis Ho

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27.11.14 (Thursday)
16:15, ESO auditorium "Telescopium", Munich Joint Astronomy Colloquium
"Searching for the origins of galaxy bimodality"
Vivienne Wild (University of St. Andrews, UK)
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"Searching for the origins of galaxy bimodality"

Vivienne Wild (University of St. Andrews, UK)

Abstract
Understanding how and why galaxies form and evolve is one of the most challenging problems in modern astrophysics. Our own galaxy, the Milky Way, shows order and structure, as do most massive galaxies in our local neighbourhood. Yet when we look to very distant galaxies they are disordered and chaotic. One leading theory for the origin of this transformation invokes gas-rich mergers, which trigger massive starbursts leading to bulge and supermassive black hole growth. I will start by reviewing the evidence for and against this scenario. I will then turn to the interesting case of post-starburst galaxies at 0<z<2. How many of these recently quenched descendents of massive starbursts could be the progenitors of modern day red ellipticals, and what fraction of red ellipticals could have been formed through the gas-rich mergers required to trigger such strong starbursts?

December 2014

04.12.14 (Thursday)
16:15, ESO auditorium "Telescopium", Munich Joint Astronomy Colloquium
"(topic t.b.a.)"
Adam Muzzin
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"(topic t.b.a.)"

Adam Muzzin

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11.12.14 (Thursday)
16:15, ESO auditorium "Telescopium", Munich Joint Astronomy Colloquium
"(topic t.b.a.)"
Jonathan Tan (University of Florida)
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"(topic t.b.a.)"

Jonathan Tan (University of Florida)

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18.12.14 (Thursday)
16:15, ESO auditorium "Telescopium", Munich Joint Astronomy Colloquium
"(topic t.b.a.)"
Julio Navarro
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"(topic t.b.a.)"

Julio Navarro

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Past Talks

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2014, 2013, 2012, 2011, 2010