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Models and Simulations Run on the Cluster and in the Family

Interview

Models and Simulations Run on the Cluster and in the Family

From Purdue University’s Long Tales of Science podcast, hear CIERA’s Dr. Sarah Wellons, an astrophysicist who uses high performance computing resources to run massive simulations of galaxy formation, and her mother, Dr. Helen Wellons, a retired chemical engineer who used parallel computing to deploy computational modeling applications to optimize real-time refinery operations at ExxonMobil.

  • Science

Shane Larson’s Virtual Public Lecture, “A Storm of Stars: A Living History of the Milky Way”

Event

Shane Larson’s Virtual Public Lecture, “A Storm of Stars: A Living History of the Milky Way”

On October 28, 2020 CIERA’s Shane Larson presented this public lecture titled A Storm of Stars: A Living History of the Milky Way in a virtual Zoom webinar format to an audience of nearly 450 viewers. Larson discussed how we came to understand the Milky Way, our home galaxy, and how our ideas about the

  • Event

CIERA’s 11th Annual Public Lecture, “Cartography of the Cosmos: Mapping the Unseen”

Event

CIERA’s 11th Annual Public Lecture, “Cartography of the Cosmos: Mapping the Unseen”

This lecture was presented by award-winning author and Yale professor Dr. Priyamvada Natarajan at Cahn Auditorium on October 24, 2019. Natarajan discussed how mapping over time encodes radical new scientific ideas. She walked through the history of the acceptance of new astronomical ideas, and talked about the status of several current transformative (and deeply contested)

  • Event,
  • Interdisciplinary

Exploring the Invisible Universe with Computer Simulations

Event

Exploring the Invisible Universe with Computer Simulations

Northwestern Physics and Astronomy student Alex Gurvich presents a talk as part of the Northwestern Ready Set Go (RSG) program. The goals of the program are to increase awareness for the urgent need for excellent research communicators and to coach graduate and post doctoral researchers to improve their own presentation skills. The program focuses on three important

Northwestern's RSG Program

Exploring the Universe with Virtual Galaxies

Event

Exploring the Universe with Virtual Galaxies

Northwestern Physics and Astronomy student Zachary Hafen presents a talk as part of the Northwestern Ready Set Go (RSG) program. The goals of the program are to increase awareness for the urgent need for excellent research communicators and to coach graduate and post doctoral researchers to improve their own presentation skills. The program focuses on three important

Northwestern's RSG Program

Isolated Disc Galaxy

Video

Isolated Disc Galaxy

Simulation of an isolated disc galaxy, looking at the disc of the galaxy face on (top panels) and edge on (bottom panels). The left-hand panels show images of the stellar light, and is what we would see if we viewed this galaxy with a telescope such as Hubble. The right-hand panels show the gas in

Alex Richings / Northwestern

Radiative-hydrodynamic Simulation of a Dusty Cloud Irradiated by a Quasar

Image

Radiative-hydrodynamic Simulation of a Dusty Cloud Irradiated by a Quasar

The figure shows a radiative-hydrodynamic simulation of a dusty cloud irradiated by a quasar (located at r = 0). Radiation pressure is set to be the dominant pressure source. Left panel shows the initial conditions, while the right panel shows the cloud 10^4 years after exposure to the quasar radiation. A quasi-static density gradient develops at

Jonathan Stern in collaboration with J. Onorbe.

Firefly Demonstration

Video

Firefly Demonstration

Firefly is a portable web-based 3d visualization software developed in partnership between the Northwestern University Galaxy Formation and Visualization groups. It was developed with the data output of the FIRE simulations in mind but can visualize any 3d dataset (in coordinate or phase space). In this video I demonstrate some of the key features of

Aaron Geller / Alex Gurvich / Northwestern

Galaxy Evolution

Image

Galaxy Evolution

Here we show the evolution of a Milky Way-like galaxy over time. The top row shows the galaxy as it would appear today, the middle 3.5 billion years ago, and the bottom almost 10 billion years ago. Columns give different views of the same snapshot in time, leftmost is the mock view through the Hubble

Alex Gurvich / Northwestern

Firefly Visualization Platform

Image / Interactive

Firefly Visualization Platform

A screenshot from Firefly, an interactive, web-based, and publicly available visualization platform available at ageller.github.io/Firefly. Shown here is a snapshot in time from a simulation of a Milky Way-like galaxy with the stars in blue, the gas in red, and the dark matter in yellow. In the real universe the gas and dark matter is invisible, so

Aaron Geller / Alex Gurvich / Northwestern