| Event date | Title | Speakers | Summary | Links |
|---|---|---|---|---|
| Feb. 26, 2018, 2:00 pm US/Central | Stellar Streams Discovered in the Dark Energy Survey | Nora Shipp, U. Chicago | We perform a search for stellar streams around the Milky Way using the first three years of multi-band optical imaging data from the Dark Energy Survey (DES). We use DES data covering ∼5000 sq. deg. to a depth of g>23.5 with a relative photometric calibration uncertainty of <1%. This data set yields unprecedented sensitivity to... More » | |
| Feb. 26, 2018, 2:00 pm US/Central | Stellar Streams Discovered in the Dark Energy Survey | Nora Shipp, U. Chicago | We perform a search for stellar streams around the Milky Way using the first three years of multi-band optical imaging data from the Dark Energy Survey (DES). We use DES data covering ∼5000 sq. deg. to a depth of g>23.5 with a relative photometric calibration uncertainty of <1%. This data set yields unprecedented sensitivity to... More » | |
| March 5, 2018, 2:00 pm US/Central | TBD | Kimberly Boddy, Johns Hopkins | ||
| March 19, 2018, 2:00 pm US/Central | Intensity Interferometry in the Era of Giant Telescopes | Albert Stebbins, FNAL | Three widely separated 30m class optical telescopes (E-ELT, GMT, TMT) will start observations in the coming decade and will provide a new opportunity to probe moderately dim sources with unprecedented angular resolution using the spectroscopic count intensity interferometry technique (see Hanbury Brown and Twiss). The large baselines which extend up to 10,000 km probe angular... More » | |
| March 26, 2018, 2:00 pm US/Central | TBD | Michael Cooper, UC Irvine | ||
| April 2, 2018, 2:00 pm US/Central | TBD | Mike Boylan-Kolchin, UT Austin | ||
| April 9, 2018, 2:00 pm US/Central | TBD | Andrew Long, U. Chicago KICP | ||
| April 16, 2018 US/Central | No Seminar (APS Meeting) | N/A | ||
| April 23, 2018, 2:00 pm US/Central | TBD | Mark Devlin, UPenn | ||
| April 30, 2018, 2:00 pm US/Central | TBD | Heidi Wu | ||
| May 7, 2018, 2:00 pm US/Central | TBD | Jason Detwiler, U Wisconsin Madison | ||
| May 21, 2018, 2:00 pm US/Central | TBD | Brian Keating, UC San Diego | ||
| May 30, 2018, 2:00 pm US/Central | Galaxy cluster mass measurements in the Dark Energy Survey | Tom McClintock, University of Arizona | Galaxy clusters are a powerful probe of cosmological parameters and host up to hundreds of galaxies. These clusters reside in massive dark matter halos, which are virialized structures comprised of up to a few times 10^15 solar masses. Forming the foundation of galaxy cluster cosmology are two critical components: measurements of cluster masses, and models... More » | |
| June 4, 2018, 2:00 pm US/Central | Anisotropies in the Gravitational Wave Background from Cosmological Phase Transitions | Yuhsin Tsai, U Maryland | Phase transitions in the early universe can readily create an observable stochastic gravitational wave background. I will argue that such a background necessarily contains anisotropies analogous to those of the cosmic microwave background (CMB) of photons, and that these too may be within reach of proposed gravitational wave detectors. Correlations within the gravitational wave anisotropies... More » | |
| June 11, 2018, 2:00 pm US/Central | The Linear Point: a cleaner cosmological standard ruler in the galaxy correlation | Stefano Anselmi, Observatoire de Paris | Cosmology has made fundamental progress thanks to the role of standard rulers: objects of known size that are constant in redshift. The acoustic peak in the large scale structure clustering correlation function is one of them. However, in the era of precision cosmology, its power has been highly challenged by late time non-linear effects that... More » | |
| June 18, 2018, 2:00 pm US/Central | TBD | Oren Slone, Princeton | ||
| June 25, 2018, 2:00 pm US/Central | TBD | Julio Navarro, U Victoria | ||
| July 9, 2018, 2:00 pm US/Central | A New Frontier in the Search for Dark Matter | Gordan Krnjaic, Fermilab | The gravitational evidence for the existence of dark matter is overwhelming; observations of galactic rotation curves, the CMB power spectrum, and light element abundances independently suggest that over 80% of all matter is “dark” and beyond the scope of the Standard Model. However, its particle nature is currently unknown, so discovering its potential non-gravitational interactions... More » | |
| July 30, 2018, 2:00 pm US/Central | TBD | Jia Liu, UChicago | ||
| Aug. 6, 2018, 2:00 pm US/Central | TBD | Robert Nemiroff, MTU | ||
| Aug. 8, 2018, 2:00 pm US/Central | TBD (Note different day) | Francesco Navarro | ||
| Aug. 13, 2018, 2:00 pm US/Central | TBD | Asher Berlin, SLAC | ||
| Aug. 13, 2018, 2:00 pm US/Central | Massive Gravity and Cosmology | Rachel Rosen, Columbia | ||
| Sept. 17, 2018, 2:00 pm US/Central | TBD | Eduardo Rozo, Arizona | ||
| Sept. 24, 2018, 2:00 pm US/Central | TBD | Kate Scholberg, Duke | ||
| Oct. 1, 2018, 2:00 pm US/Central | TBD | Julian Munoz, Harvard | ||
| Oct. 15, 2018, 2:00 pm US/Central | TBD | Yao-Yuan Mao, Pittsburgh | ||
| Oct. 29, 2018, 2:00 pm US/Central | TBD | Suzanne Staggs, Princeton | ||
| Nov. 5, 2018, 2:00 pm US/Central | Dark matter axion clumps | Mark Hertzberg, Tufts | In this talk I begin by reviewing how dark matter axions can undergo Bose-Einstein condensation and why this is captured by classical field theory. I explain that such condensates are spatially localized clumps, as they are organized by gravitation and self-interactions, and they may populate the galaxy. I discuss both the ground state and finite... More » | |
| Nov. 12, 2018, 2:00 pm US/Central | TBD | Reyco Henning, UNC Chapel Hill | ||
| Nov. 19, 2018, 2:00 pm US/Central | TBD | Raymond Co, Michigan | ||
| Nov. 26, 2018, 2:00 pm US/Central | TBD | Deanna Hooper, Aachen University | ||
| Dec. 3, 2018, 2:00 pm US/Central | TBD | Anson Hook, University of Maryland, College Park | ||
| Dec. 10, 2018, 2:00 pm US/Central | TBD | Hongwan Liu, MIT | ||
| Dec. 17, 2018, 2:00 pm US/Central | TBD | Nilanjan Banik, Amsterdam/Leiden |
Showing 1 to 35 of 35 entries