• 2019 Dec 05

# ITC Luncheon

12:30pm to 1:30pm

Phillips
• 2019 Dec 05

# ITC Colloquium - Yacine Ali-Haïmoud (NYU)

11:00am to 12:00pm

## Location:

Pratt

Hunting for dark matter in the early Universe

It is now well established that a large part of the matter in the Universe is some substance which appears to be oblivious to any force but gravity. The nature of this dark matter” remains a mystery. Could it be a new particle, as light as an electron, or might it be made of black holes as massive as many Suns? In this talk, I will first describe how one can hope to tease out some of the properties of dark matter from the Cosmic Microwave Background (CMB), the...

• 2019 Dec 03

# ITC Seminar - Abigail Polin (Berkeley)

12:00pm to 1:00pm

## Location:

Phillips
Modeling Sub-Chandrasekhar Mass White Dwarf Explosions as Type Ia Supernovae
>
> Abstract:
> Type Ia supernovae are some of the most common cosmic transients, yet their progenitors are still not known. I will discuss my thesis research on a specific pathway to these explosions, known as the double detonation scenario.  I will first describe the hydrodynamic techniques I use to simulate these explosions and to calculate the composition of the outflow.  I will also describe the radiation transport methods I use to translate the hydrodynamical output into synthetic... Read more about ITC Seminar - Abigail Polin (Berkeley)
• 2019 Dec 02

# ITC Seminar - Patrick Mullen (Illinois)

12:00pm to 1:00pm

## Location:

Phillips

Magnetized Models of Moon-Forming Giant Impacts

Abstract: The canonical giant impact hypothesis suggests that ~4.5 billion years ago, a Mars-sized impactor struck the proto-Earth in an off-centered collision. The impact debris, comprised of melted and vaporized silicates, wraps around the proto-Earth forming a Keplerian disk.  From this "protolunar disk”, the Moon is thought to have formed. This talk aims to investigate the role of magnetic fields in a giant impact scenario.  Specifically, I will describe a suite of 3-D numerical MHD simulations that study the...

• 2019 Dec 02

# ITC Seminar - Joao Mendonca (Tech Univ of Denmark)

12:00pm to 1:00pm

## Location:

Phillips
Exploring the Climate of Exoplanets with OASIS

In the last two decades, the astrophysical community discovered a multitude of planets orbiting other stars. The variety of planetary environments that these exoplanets may harbour is still unknown. Most importantly, this discovery propels the fundamental scientific and philosophical quest of searching for the first detection of life beyond our own planet. As more observational data become available, models of exoplanetary atmospheres are essential, at a first level to interpret the data and more importantly to reproduce...

Read more about ITC Seminar - Joao Mendonca (Tech Univ of Denmark)
• 2019 Nov 25

# ITC Seminar - Maryame El Moutamid (Cornell)

12:00pm to 1:00pm

## Location:

Phillips
"Evidence of differential rotation inside Saturn from waves of its rings"

The rotation rate of Saturn is not well constrained. This rate has been
estimated based on several investigations of its shape (Anderson and
Schubert 2007, Read et al., 2009 and Helled et al., 2015), its cloud top
winds (Garcia Melendo et al., 2011, Sanchez-Lavega et al., 2014) and its
magnetic field (Ye et al., 2010, Lamy et al., 2011, Andrews et al.,
2012, Provan et al., 2013).  The reason why the interior rotation rate
is not well known is that its magnetic field seems to be closely... Read more about ITC Seminar - Maryame El Moutamid (Cornell)
• 2019 Nov 25

# ITC Seminar - Melinda Soares-Furtado (Princeton)

12:00pm to 1:00pm

## Location:

Phillips
Probing the Bulk Composition of Exoplanets with Engulfment Events
As a star evolves away from the main sequence and expands in size, close-orbiting substellar companions are engulfed in the process. While such events are not uncommon, the short tidal inspiral timescale makes it challenging to directly observe a planetary engulfment event. However, traces of engulfment can be observed long after the event has transpired. In my most recent work, I explore the strength and survival time of the 7Li enrichment signature in...
• 2019 Nov 21

# ITC Luncheon

12:30pm to 1:30pm

## Location:

Phillips
Hannah Diamond-Lowe (CfA)
“Ground-based transmission spectroscopy of nearby terrestrial exoplanets”

• 2019 Nov 15

# ITC Seminar - Asmita Bhandare (MPIA)

12:00pm to 1:00pm

## Location:

Pratt

Zooming in on the early stages of star and disk formation

Abstract: Magnetized, cold, dense molecular cloud cores provide the birth environment for stars and disks. This work is aimed at understanding the multi-scale scenario of star formation, which occurs via the formation of two quasi-hydrostatic Larson cores. We perform spherically symmetric, isolated, molecular cloud collapse simulations using the radiation (magneto)hydrodynamic code PLUTO as a tool. These one-dimensional studies, spanning 7 orders of magnitude in spatial scales, include self-...