Workshops & Events
Daniel Holz, UChicago, "GW170817: Hearing and Seeing a Binary Neutron Star Merger"
February 1, 2018 | KPTC 106 | 4:00 PM
Artist's impression of the collision of two neutron stars, the source of the latest gravitational waves detected.
Credit: National Science Foundation/LIGO/Sonoma State University/A. Simonnet
Click on the image to enlarge
With the discovery of GW170817 in gravitational waves, and the discovery of an associated short gamma-ray burst, and the discovery of an associated optical afterglow, we have finally entered the era of gravitational-wave multi-messenger astronomy. I will discuss LIGO/Vigo's detection of this binary coalescence, and explore some of the scientific implications, including confirmation of the kilonova model and implications for the origin of gold and platinum in the universe, tests of general relativity, and the first standard siren measurement of the Hubble constant. GW170817 represents a momentous development in gravitational-wave astronomy, and the birth of gravitational-wave cosmology.

Winter 2018 Postdocs Symposium
February 23, 2018 | ERC 401 | 1:00 PM
1:00 PM
Lunch
2:00 PM
Lightning talks
3:40 - 4:00 PM
Break
4:00 PM
Talks
5:00 PM
Dinner and networking/socializing

Workshop: Towards Dark Matter Discovery
April 11 - 13, 2018 | Chicago, IL
Click on the image to enlarge
Website
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
June 27 - 29, 2018 | Chicago, IL
Click on the image to enlarge
Website
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:
  • Dark Matter and Near-Field Cosmology
  • Milky Way satellite galaxies - satellites of satellites, planes of satellites, dark matter particle physics
  • Stellar streams and halo overdensities -- constraints on Milky Way dark matter halo
  • First stars; Reionization; Chemical Evolution -- r-process variation
  • Time series photometry and RR Lyrae stars -- distant structure tracers
  • Local Group and Nearby Galaxies -- Ultra-Diffuse Galaxies
  • Synergy with Gaia DR2 and other spectroscopic programs/surveys.
  • Synergy with other DECam surveys and/or other imaging surveys.