Thursday, November 30, 2023
03:00 PM - 04:00 PM
AGN Seminar (Hybrid)
Molecular Outflows in NGC 3256: A JWST look at Feedback in a Late-stage Merger
Thomas Bohn (Hiroshima University)
The James Webb Space Telescope has unlocked a new era in our understanding of galaxy evolution and the feedback processes that govern it. In this presentation, I will discuss JWST IFS observations of NGC 3256 that were taken as part of the GOALS ERS program 1382. NGC 3256 is a local, z=0.009364 late-stage merger that is speculated to host stellar and AGN-driven outflows originating from both nuclei. As such, it is a compelling candidate to study two types of outflow feedback on the local environment. Using JWST NIRSpec and MIRI IFU data sets spanning 1.0 - 28.0 um, we discover outflows of warm molecular gas with speeds reaching up to 1,000 km/s and extend out to 0.7 kpc. Furthermore, we report outflow mass rates and energetics, and aim to identify the source of these outflows. Lastly, we analyze shocks within the local ISM that enable us to assess the impact of these outflows on the SFR of this cluster-rich system.
Read more about this event Thomas Bohn (Hiroshima University)
The James Webb Space Telescope has unlocked a new era in our understanding of galaxy evolution and the feedback processes that govern it. In this presentation, I will discuss JWST IFS observations of NGC 3256 that were taken as part of the GOALS ERS program 1382. NGC 3256 is a local, z=0.009364 late-stage merger that is speculated to host stellar and AGN-driven outflows originating from both nuclei. As such, it is a compelling candidate to study two types of outflow feedback on the local environment. Using JWST NIRSpec and MIRI IFU data sets spanning 1.0 - 28.0 um, we discover outflows of warm molecular gas with speeds reaching up to 1,000 km/s and extend out to 0.7 kpc. Furthermore, we report outflow mass rates and energetics, and aim to identify the source of these outflows. Lastly, we analyze shocks within the local ISM that enable us to assess the impact of these outflows on the SFR of this cluster-rich system.
Friday, December 01, 2023
08:00 AM - 05:00 PM
Quiet Friday
Quiet Friday: a day for you to use as you choose for your work life balance. Management will not schedule any required or mandatory meetings on this day. You can choose and use the day as you need it.
Read more about this event Monday, December 04, 2023
01:00 PM - 02:15 PM
SED Town Hall
Agenda coming soon
Read more about this event Tuesday, December 05, 2023
03:00 PM - 04:30 PM
SED Winter Open House
Join us for a Jingle & Mingle celebration!
Read more about this event Tuesday, December 05, 2023
03:45 PM - 05:00 PM
ASD Colloquium (Hybrid)
Worlds & Suns in Context: The Role of Age and Environment
Melinda Soares-Furtado (University of Wisconsin-Madison)
In this talk, I discuss the interactions between stellar hosts and planetary companions, including the ejection and ingestion of stellar companions. Drawing insights from stellar evolutionary models and observational survey data (photometric and spectroscopic), I present my team's latest discoveries as we seek to identify unambiguous ingestion-derived chemical tracers. Such tracers make it possible to identify engulfment events long after the original event has transpired and offer a critical opportunity to probe bulk planetary composition. Looking forward, infrared space-based missions like the Nancy Grace Roman Space Telescope will soon make it possible to investigate young, free-floating planets for the presence of satellites. These data would help to further constrain the formation pathways and dynamical histories of these starless worlds.
Read more about this event Melinda Soares-Furtado (University of Wisconsin-Madison)
In this talk, I discuss the interactions between stellar hosts and planetary companions, including the ejection and ingestion of stellar companions. Drawing insights from stellar evolutionary models and observational survey data (photometric and spectroscopic), I present my team's latest discoveries as we seek to identify unambiguous ingestion-derived chemical tracers. Such tracers make it possible to identify engulfment events long after the original event has transpired and offer a critical opportunity to probe bulk planetary composition. Looking forward, infrared space-based missions like the Nancy Grace Roman Space Telescope will soon make it possible to investigate young, free-floating planets for the presence of satellites. These data would help to further constrain the formation pathways and dynamical histories of these starless worlds.
Wednesday, December 06, 2023
10:45 AM - 12:00 PM
ASD Colloquium (Hybrid)
GammaTPC: a novel next generation Compton telescope
Thomas Shutt (KIPAC, Stanford University)
I will talk about GammaTPC, a new instrument concept for measuring astrophysical gamma rays in the MeV energy range. This is a largely unexplored energy range due in large part to the difficulty of measuring such photons. GammaTPC uses liquid argon time projection chamber (TPC) technology which builds on developments for dark matter and neutrinos, and holds the promise of an instrument that is both very large and highly sensitive. Core to GammaTPC is GAMPix, a new charge readout scheme that achieves fine-grained, low noise readout at very low power. I will discuss his and other challenges to fielding a liquid noble TPC in low Earth orbit, as well as the status of GammaTPC development.
Read more about this event Thomas Shutt (KIPAC, Stanford University)
I will talk about GammaTPC, a new instrument concept for measuring astrophysical gamma rays in the MeV energy range. This is a largely unexplored energy range due in large part to the difficulty of measuring such photons. GammaTPC uses liquid argon time projection chamber (TPC) technology which builds on developments for dark matter and neutrinos, and holds the promise of an instrument that is both very large and highly sensitive. Core to GammaTPC is GAMPix, a new charge readout scheme that achieves fine-grained, low noise readout at very low power. I will discuss his and other challenges to fielding a liquid noble TPC in low Earth orbit, as well as the status of GammaTPC development.
Swift: A Decade of Game-changing Astrophysics
Over the past decade, NASA's Swift Gamma-ray Burst Explorer has proven itself to be one of the most versatile astrophysics missions ever flown.
Highlights of Swift's Decade of Discovery
NASA's Swift satellite rode to orbit aboard a Delta II rocket on November 20, 2004, and it's still going strong.