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NPAC (Nuclear/Particle/Astro/Cosmo) Forums

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Organized by: Prof. Kimberley Palladino


Events During the Week of November 13th through November 19th, 2016

Monday, November 14th, 2016

No events scheduled

Tuesday, November 15th, 2016

No events scheduled

Wednesday, November 16th, 2016

Multi-Messenger Astronomy with Neutrinos
Time: 2:30 pm
Place: 5280 Chamberlin Hall (coffee)
Speaker: Anna Franckowiak, DESY, Germany
Abstract: The recent discovery of high-energy astrophysical neutrinos has opened a new window to the Universe. However, the sources of those neutrinos are still unknown. Among the plausible candidates are active galactic nuclei, gamma-ray bursts and supernovae. Combining neutrino data with electromagnetic measurements in a multi-messenger approach will increase the sensitivity to identify the neutrino sources and help to solve long-standing problems in astrophysics such as the origin of cosmic rays.

I will review the recent progress in multi-messenger astronomy using neutrino data.
Host: Albrecht Karle
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Thursday, November 17th, 2016

A novel on-chip, mm-wavelength spectrometer for mapping the high-redshift universe.
Time: 2:30 pm
Place: 5280 Chamberlin Hall
Speaker: Erik Shirokoff, University of Chicago
Abstract: Title: A novel on-chip, mm-wavelength spectrometer for mapping the high-redshift universe.

SuperSpec is an compact on-chip spectrometer for mm and submm wavelength astronomy. Its small size, wide spectral bandwidth, and highly multiplexed detector readout will enable construction of powerful multi-object spectrometers for high-redshift observations. The design employs a filter bank consisting of a series of superconducting thin film circuit elements, each coupled to titanium nitride lumped-element kinetic inductance detector (KID.) I will discuss the design, optimization, and measured performance of our prototype devices, our upcoming observing run with the SuperSpec demonstration camera, and the observations that will become possible with a large multi-object-spectrometer based upon this technology. These future instruments will allow us to characterize thousands of high redshift dusty star forming galaxies and to measure to characterize star formation during the epoch of reionization through tomographic intensity mapping.
Host: Peter Timbie
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Friday, November 18th, 2016

The Fermi view of Gamma-Ray Bursts & the curious case of GW 150914
Time: 2:00 pm
Place: 5280 Chamberlin Hall
Speaker: Elisabetta Bissaldi , Politecnico & INFN Bari
Abstract: I'll give a brief overview of Gamma-Ray Bursts (GRBs) observations performed over the past 8 years by the two instruments on-board the Fermi satellite, namely the Gamma-Ray Burst Monitor (GBM) and the Large Area Telescope (LAT).<br><br>
In this period of time, GBM has triggered and located on average approximately two GRBs every three days. The most recent results are summarized in the latest two catalogs provided by the Fermi GBM science team, namely the third GBM GRB catalog and the first GBM time-resolved spectral catalog.<br><br>
Moreover, the Fermi LAT science team has been recently performing an extensive search for GRBs at high energies (>100 MeV) featuring a detection efficiency more than 50% better than previous works, and returning more than 130 detections.<br><br>
Finally, I'll present the GBM and LAT follow-up of the LIGO Gravitational Wave event GW 150914, focusing on the GBM detection of a weak transient event, close in time to the LIGO one. Future joint observations of GW events by LIGO/Virgo and Fermi could reveal whether the weak transient reported by GBM is a plausible counterpart to GW150914 or a chance coincidence, and will further probe the connection between compact binary mergers and short GRBs.
Host: Justin Vandenbroucke
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