Astrophysical Fluid Dynamics and Methods Meeting Room: Classroom Please contact James Cho if interested in joining.

Machine Learning Group Meeting Room: Classroom Machine Learning Group Meeting Description: Please email Gabriella Contardo to join if interested in the nuts and bolts of ML x Astrophysics.

Exoplanets Meeting Room: Classroom 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.

Particle Astro/Cosmology Meeting Room: Classroom

Stars and Exoplanets Meeting Room: Classroom 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.

Gravitational Waves Group Meeting Room: Classroom

SF Lecture: Bridget Carragher Room: Classroom Gerald D. Fischbach Auditorium - 160 Fifth Avenue at 21st Street, 2nd floor Description: Self-Organization and Robustness in Biological Systems A living cell is an astonishingly complex environment. It is tightly packed with millions of molecular machines that do the work of the cell and provide structure, function and regulation. Over the last five years, electron microscopy (EM) has undergone a revolution. Advancements have catapulted EM to the forefront method for determining the detailed structures of these machines and how they interact inside the densely packed interior of cells. In this lecture, Bridget Carragher will explain the methods used, outline some of the current challenges and discuss opportunities for new advances. Carragher received her Ph.D. in biophysics from the University of Chicago in 1987. She has worked in a variety of positions, both in industry and academia before moving to the New York Structural Biology Center in 2015 to lead the Simons Electron Microscopy Center together with Clint Potter. Carragher and Potter also direct the National Resource for Automated Molecular Microscopy (NRAMM), the National Center for CryoEM Access and Training (NCCAT), and National Center for In-situ Tomographic Ultramicroscopy (NCITU). Registration is required for this free webinar. Further instructions and access to join the webinar will be sent to all registrants upon sign up.

Compact Objects Group Meeting Room: Classroom

Dynamics Group Meeting Room: Classroom Dynamics Group Meeting Description: Group members meet for workshop projects. Email Kathryn Johnston if you’d like to participate.

Galaxy Formation Group Meeting Room: Classroom Galaxy Formation Group Meeting Description: By Invitation Only. Email rachel somerville if you would like to participate.

Astronomical Data Internal Group Meeting Room: Classroom Astronomical Data Internal Group Meeting Description: Group members meet for workshop projects. Email Hogg if you’d like to participate.

Cosmology X Data Science Group Meeting Room: Classroom 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. Lunch will be served at CCA. Please contact(ccainfo@simonsfoundation.org) at least 24hrs in advance, if you would like to be added to the participant list to attend this meeting. This meeting alternates its location between NYU-Physics and Flatiron-CCA.

Planet Formation Group Meeting Room: Classroom

CCA Colloquium: Johanna Vos Room: Classroom CCA Colloquium: Johanna Vos Let The Great World Spin: Revealing the Turbulent, Stormy Atmospheres of Giant Planet Analogs Brown dwarfs act as powerful analogs to the directly-imaged exoplanets, with similar temperatures, masses, and compositions. Photometric variability monitoring of brown dwarfs is a unique probe of their atmospheres, as it is sensitive to condensate clouds as they rotate in and out of view. Variability has now been robustly observed in a range of L, T, and Y spectral type brown dwarfs and more recently in planetary-mass companions and free-floating exoplanet analogs. In this talk, I will discuss some of the key takeaways from our recent variability studies of brown dwarfs, as well as prospects for extending this work to directly-imaged exoplanets in the future. In particular, I will discuss the effects of surface gravity and viewing angle on observed variability properties, as well as a novel technique to measure brown dwarf and exoplanet wind speed.