NYU Arts & Science
Astrophysics and Relativity Seminars
September 29, 2017 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


Tjitske Starkenburg
Flatiron Institute, Simons Foundation

The diverse history of counterrotating galaxies

Current and upcoming IFU and HI surveys will provide us with a wealth of kinematic information that could give clues to the evolutionary and environmental history of individual galaxies. Extreme kinematics like counter-rotation of gas or stars is particularly interesting as this can provide additional dynamical or evolutionary constraints. There is however no statistical prediction of the occurrence, properties and possible origin of counter-rotating galaxies within the concordance cosmological framework. I will present a study of these issues using the Illustris cosmological simulation. We predict the general occurrence and properties of counter-rotating galaxies over a large range in stellar mass. Additionally, we focus in detail on the evolutionary history of 5 disky sub-L* galaxies that show extremely clear gas disk-stellar disk counterrotation. These specific galaxies are selected as analogues to an observational sample of counter-rotating dwarf galaxies carried on with Keck. I will summarize the several mechanisms identified as origin of counter-rotation in low mass galaxies, and discuss possible links between counter-rotation and a galaxy’s evolutionary history.


October 6, 2017 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


Mansi Kasliwal
Caltech

TBA (Transient Astronomy)



October 20, 2017 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


Julie Comerford
University of Colorado - Boulder

TBA (Black Hole Binaries)



October 27, 2017 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


Renee Hlozek
Dunlap Institute, Univ. of Toronto

TBA (Cosmology/Data Analysis)



November 3, 2017 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


James Peebles
Princeton University

A Tale of Two Theories: Dark Matter in the 1970s, Galaxies Today



November 10, 2017 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


Matias Zaldarriaga
Institute for Advanced Study

TBA (Theoretical Cosmology)



November 17, 2017 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


Sarah Pearson
Columbia University

TBA (Milky Way dynamics)

TBA


December 1, 2017 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


Vera Gluscevic
Institute for Advanced Study

TBA (Theoretical Cosmology)



December 8, 2017 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


Ilsedore Cleeves
Center for Astronomy, Harvard University

TBA (planetary astronomy)



December 15, 2017 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


Alyson Brooks
Rutgers University

TBA (Galaxy Evolution)



January 19, 2018 Friday 11:00 AM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


[none] [none]

[none]

No seminar this week; competing event at Flatiron CCA


February 9, 2018 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


Jackie Faherty
AMNH

TBA (low-mass stars)