Talks & Events
Workshops & Events
Current & Future
Daniel Holz, UChicago, "GW170817: Hearing and Seeing a Binary Neutron Star Merger"
Winter 2018 Postdocs Symposium
GeoSci Seminar: Vikram Dwarkadas, "Investigating a Stellar Wind Origin for High 26Al and Low 60Fe in the Early Solar System"
Astronomy & Astrophysics Open House
EFI seminar: Nahee Park, University of Wisconsin, "Probing high energy particle dynamics in our Galaxy with multimessenger observations"
Cosmic rays, high energy particles originating from outside of the solar system, are believed to be dominated by particles from our Galaxy at least up to the energy of 10^15 eV. Since their discovery in 1912, the origin, acceleration, and propagation of these high energy particles have remained as open questions. In the last few years, new results from space-borne experiments, such as the rise of the positron flux and hardening of the light nuclei, have begun to challenge our understanding of these particles. Complementing this, indirect observations of the cosmic rays via very high energy gamma rays have started to shed light on the various particle accelerators in our Galaxy with discoveries of over a hundred Galactic sources. With the recent detection of astrophysical neutrinos by IceCube, the first unequivocal view of pure hadronic accelerators in our Universe became available. I will present what we have learned about the acceleration of high energy particles with gamma-ray observations based on the Galactic gamma-ray measurements from the VERITAS experiment, an imaging atmospheric Cherenkov telescope. I will show what we can learn from the future neutrino experiment IceCube Gen-2 and the future gamma-ray observatory CTA. Finally, I will highlight how these multimessenger observations come together to lead us toward a more coherent and complete picture of high energy particles in our Galaxy.
Workshop: Towards Dark Matter Discovery
The Kavli Institute of Cosmological Physics (KICP) at the University of Chicago is hosting the "Towards Dark Matter Discovery" workshop, which will be held from 11th to 13th April 2018 in the Eckhardt Research Center (ERC) on the University of Chicago campus.
The workshop will explore new directions on the path toward discovering the nature of dark matter. The invited speakers are encouraged to share their expertise in the fields of primordial black holes, thermal relic dark matter, nonthermal relic dark matter, ultralight dark matter, superheavy dark matter, kinda-chubby dark matter, new strategies for direct detection, newer strategies for direct detection, avant-garde strategies for direct detection, and axions. During the three day workshop, we will host approximately 20 talks of 30 minutes each with generous time remaining for discussion.
Visitors to the University of Chicago are invited to spend the entire week at the university.
Workshop: Near-Field Cosmology with the Dark Energy Survey's DR1 and Beyond
Stars in our Milky Way and galaxies in our Local Group contain the fossils and clues on stellar evolution and supernovae, the formation and evolution of star clusters and dwarf galaxies, and the formation of large spiral galaxies. Rapid progress in this field -- usually called Galactic Archeology -- was enabled by large-area imaging and spectroscopic surveys of old stellar components of the Milky Way and dwarf galaxies, together with simulations of chemical and dynamical evolution. The field of Near-Field Cosmology extends the scope of these studies to probe the formation and evolution of galaxies and the nature of dark matter.
The Dark Energy Survey (DES) is releasing its DR1, with catalogs and images from the first three years of DES operations early in 2018, including 400M objects (100M stellar sources in grizY band to r of 24th magnitude at 10 sigma) over 5000 square degrees mostly in the Southern Galactic cap. This survey is about 2 magnitudes fainter than SDSS at the same S/N. In addition to DES, many other DECam community surveys, such as DECaLS, DECaPS, SMASH, MagLiteS, BLISS, etc, have already had or will soon have the public data release.
Kavli Institute for Cosmological Physics (KICP) at the University of Chicago will host a 3-day workshop on June 27-29 to explore uses of the DES DR1 for near field cosmology studies in conjunction with other DECam public data. Furthermore, the workshop will explore possible synergies with other spectroscopic surveys as well as Gaia DR2.
The 3-day workshop will include presentations and discussion on the first two days and a hack day on the last day. Talks on ideas or science results related to DES/DECam data, or synergies with other programs are encouraged. Abstracts can be submitted at registration. On the hack day, we will hack on DES DR1 data and associated data sets (like Gaia DR2) in a collaborative format. Specific hack topics can be submitted at registration.
Topics in this workshop includes: