Next week at CCA October 12th - October 16th

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Classroom (Flatiron Institute)

Classroom

Flatiron Institute
Description

Next week at CCA October 12th - October 16th, 2020

 
Here is the link to the Simons Foundation youtube if you would like to view any of our past recorded talks or events. If you would like to see future events at CCA and/or Flatiron Institute, please go to the Indico website.
 
Mon Oct 12, 2020
9:30 am - 12:30 pm Astrophysical Fluid Dynamics and Methods Meeting
Description: Please contact James Cho if interested in joining.
 
2 pm - 3 pm Machine Learning Group Meeting
Description: Please email Gabriella Contardo to join if interested in the nuts and bolts of ML x Astrophysics.
 
3pm - 4pm Exoplanets Meeting
Description: An initial meeting for CCA astronomers interested in exoplanets. At this meeting we will discuss what we want from an exoplanets meeting and decide on a schedule going forward. Join via Zoom
 
Tue Oct 13, 2020
2:15pm - 3:45pm Cosmology Informal Meeting
Description: Please email Lehman Garrison to join if interested in detailed project discussion.
 
Wed Oct 14, 2020
12:30 pm - 2pm Stars and Exoplanets Meeting 
Description: Researchers in the NYC area working on the Milky Way, stellar astrophysics, and extra-solar planets gather to discuss projects in progress and scientific issues of mutual interest. This meeting is open. Zoom Link
Password: 160162
 
3pm - 4pm Gravitational Waves Group Meeting
Description: Zoom Link
Password: 195911
 
5pm – 6pm SF Lecture: Will Farr
Where: Gerald D. Fischbach Auditorium - 160 Fifth Avenue at 21st Street, 2nd floor
Description: Black Hole Bells and Other Exciting Recent Results in Gravitational Wave Astronomy
In the last five years, the exciting new field of gravitational wave astronomy has delivered many firsts: the first detection of gravitational waves — from a pair of black holes merging — in 2015; the first detection of gravitational waves from a merging pair of neutron stars — an event which also produced electromagnetic emission that was ultimately observed in various ways by roughly 30 percent of the global astronomical community — in 2017; the first catalog of binary black hole mergers that provided evidence for a maximum stellar-origin black hole mass due to an unusual type of supernova explosion in 2018; the first detection of multiple gravitational wave ‘spectral lines’ from a ‘ringing’ black hole announced in 2019; and many oddities in 2020, including a black hole merger with masses above the stellar-origin limit, a detection of an unusually massive neutron star merger, and a detection of a merger with one object with a mass that is larger than expected for a neutron star but smaller than expected for a black hole. In this lecture, Will M. Farr will discuss some of these exciting results in detail and explain the bright future of this fast-moving new field.

Farr earned his B.S. in physics from Caltech and, in 2010, his Ph.D. from MIT. After a CIERA fellowship at Northwestern University, he joined the faculty at the University of Birmingham in 2013. In 2018, he moved to Stony Brook University and the Flatiron Institute’s Center for Computational Astrophysics (CCA). He is currently an associate professor of physics and astronomy at Stony Brook University and the leader of the CCA’s Gravitational Wave Astronomy group. He is a member of the LIGO Scientific Collaboration, an international collaboration of scientists studying gravitational waves detected by the LIGO instruments.

Registration is required for this free webinar.

Further instructions and access to join the webinar will be sent to all registrants upon sign up.
 
Thu Oct 15, 2020
12:15pm - 1:15pm Lunch Talks
 
1:30 pm - 3 pm Compact Objects Group Meeting
Description: Zoom Link
Password: 160162
 
2 pm - 3 pm Dynamics Group Meeting
Description: Group members meet for workshop projects. Email Kathryn Johnston if you’d like to participate.
 
Fri Oct 16, 2020
11 am - 12:30 pm Galaxy Formation Group Meeting
Description: By Invitation Only. Email rachel somerville if you would like to participate.
 
12:30 pm - 2 pm Astronomical Data Internal Group Meeting
Description: Group members meet for workshop projects. Email Hogg if you’d like to participate.
 
1:30pm - 2:30pm Cosmology X Data Science Group Meeting
Description: Researchers in the NYC area working on understanding the theory and observations of the Universe via both traditional and novel tools in Data Science gather together to: i) Discuss a recent / classic paper, ii) give short talks (15 mins) of their recent work and iii) flash recent updates from their work. Zoom Link
Password: 160162
 
2 pm - 3 pm Planet Formation Group Meeting
Description: Zoom Link
Password: 160162
 
2pm - 3pm Flatiron Womxn's Tea
Description: Zoom Link
Password: 160162
 
3:30pm - 4:30pm CCA Colloquium: Saavik Ford
Where: 162, 2nd Floor Auditorium
Description: AGN disks have things in them--and those things are important
Active Galactic Nuclei (AGN) have usually been modeled and conceptualized solely in terms of their gas content. However, given the existence of Nuclear Star Clusters (NSCs) it is reasonable to expect stars and stellar remnants will also exist in AGN disks. Their presence leads to several important consequences, notably the AGN-driven channel for mergers of compact objects, detectable with ground-based GW observatories like LIGO-Virgo. I will discuss the mechanisms and open questions of the AGN channel, including the successful predictions of the channel to date. In addition, because mergers of binary black holes in AGN disks occur in the presence of gas, there is the possibility of naturally generating detectable EM counterparts to these mergers. I will discuss the public candidate counterpart and future directions for further searches. Finally, the existence of GW-EM sources provides an independent way of measuring the Hubble Constant, H_0. With sufficient numbers of confirmed AGN GW-EM counterparts, BBH may provide the tightest constraints on the measurement of H_0, and can resolve the tension between SNe- and CMB-based measurements.
 
Passcode: 162162