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Nevis Seminar |
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Winter 2015:
| Date |
Time |
Speaker |
Title |
Description |
Notes |
Slides |
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| Friday Feb. 27th |
1pm |
Marcos Santander, Columbia University |
TBA |
TBA |
Lunch at 12:30 pm |
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| Friday Feb. 27th |
1pm |
Marcos Santander, Columbia University |
Searching for the sources of cosmic-rays with VERITAS and IceCube |
A century of cosmic-ray research has unveiled many of the key properties of these energetic particles that reach Earth from outer space. The sources of cosmic-rays, however, remain unknown. A potential clue to finding these elusive objects is the recent observation of an astrophysical flux of high-energy neutrinos by the IceCube detector as these particles may be produced in hadronic interactions near cosmic-ray accelerators. While the neutrino sky map shows no indication of point sources so far, their presence could be revealed by detecting the hadronic gamma-ray counterpart to the neutrino emission using the VERITAS air Cherenkov array. In this talk, I will describe the VERITAS and IceCube detectors, discuss the astrophysical implications of the neutrino flux observed by IceCube and outline how observations with gamma-ray telescopes can be used to reveal its origin. |
Lunch at 12:30 pm |
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| Friday Mar. 13th |
1pm |
Daniel Whiteson, UC Irving |
Observing Ultra-High Energy Cosmic Rays with Smartphones |
We propose a novel approach for observing cosmic rays at ultra-high energy ($>10^{18}$~eV) by repurposing the existing network of smartphones as a ground detector array. Extensive air showers generated by cosmic rays produce muons and high-energy photons, which can be detected by the CMOS sensors of smartphone cameras. The small size and low efficiency of each sensor is compensated by the large number of active phones. We show that if user adoption targets are met, such a network will have significant observing power at the highest energies. |
Lunch at 12:30 pm |
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| Tuesday Mar. 24th |
1pm |
Kerston Perez, Haverford College and Columbia University |
TBA |
TBA |
Lunch at 12:30 pm |
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| Friday Mar. 13th |
1pm |
Daniel Whiteson, UC Irving |
TBA |
TBA |
Lunch at 12:30 pm |
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Fall 2014:
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Time |
Speaker |
Title |
Description |
Notes |
Slides |
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