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X-WR-CALDESC:Events for INPA
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DTSTART:20220313T100000
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DTSTART:20221106T090000
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DTSTART;TZID=America/Los_Angeles:20221104T120000
DTEND;TZID=America/Los_Angeles:20221104T130000
DTSTAMP:20260427T184612
CREATED:20221031T211901Z
LAST-MODIFIED:20221031T211947Z
UID:1278-1667563200-1667566800@inpa.lbl.gov
SUMMARY:Speaker: Dan Werthimer (UC Berkeley (SETI) "What's New in SETI and High Performance Signal Processing\,  and The PANOSETI IR/Visible Ultra-Wide Field Nanosecond Time Scale Transient Search"
DESCRIPTION:Abstract: \nDan will review current and SETI radio and optical searches\, and also review CASPER open source technologies for real time signal processing instrumentation. The CASPER collaboration develops open source hardware\, software\, GPUware\, FPGA gateware\, tools\, libraries\, reference designs\, tutorials\, training videos\, and workshops for astronomy instrumentation.\nCASPER instrumentation is utilized mostly for radio astronomy\, but also for physics\, medicine\, genomics\, and engineering. More info at http://casper.berkeley.edu \nThe PANOSETI experiment searches a largely unexplored parameter space\, observing a large field of view simultaneously (4\,450 degrees) for nanosecond to second time scale transients at visible and near-IR wavelengths. The PANOSETI observatory employs two domes separated by ~1 km. Data from the two domes is cross-correlated to distinguish between astrophysical events and atmospheric phenomena (eg: Cherenkov radiation). Each PANOSETI dome contains ~45 telescopes; each telescope covers a 10 by 10 degree field. We have deployed a prototype PANOSETI observatory at Lick Observatory; where we also plan to build a full scale system. The small aperture\, wide field-of-view\, and low cost of the PANOSETI telescopes make them well-suited for high energy gamma-ray astronomy.
URL:https://inpa.lbl.gov/event/speaker-dan-werthimer-uc-berkeley-seti-whats-new-in-seti-and-high-performance-signal-processing-and-the-panoseti-ir-visible-ultra-wide-field-nanosecond-time-scale-transient-search/
LOCATION:50A-5132 / https://lbnl.zoom.us/j/95016696011?pwd=Tk1XOW1Xd3RYRnlsc2tEYmRWZlVVZz09\, One Cyclotron Road\, 50A-5132\, Berkeley\, CA\, 94720\, United States
ORGANIZER;CN="Kevin Wood":MAILTO:KWood@lbl.gov
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221111T120000
DTEND;TZID=America/Los_Angeles:20221111T130000
DTSTAMP:20260427T184612
CREATED:20221105T000449Z
LAST-MODIFIED:20221105T001224Z
UID:1284-1668168000-1668171600@inpa.lbl.gov
SUMMARY:SPEAKER - Peter Craig (LBNL) - TITLE: "Effects of Microlensing on Time Delay Measurements from Strongly Lensed Supernovae"
DESCRIPTION:ABSTRACT: Strongly lensed supernovae are highly valuable cosmological probes\, sensitive to both the Hubble constant and the distribution of dark matter. Measuring time delays in strong lensing systems allows for independent measurements of the Hubble constant\, providing a mechanism to resolve the current Hubble tension. These time delays are also sensitive to the dark matter substructures located along the line of sight. Microlensing effects from stars in the lensing galaxy can contaminate measurements of the time delays\, making some methods for measuring time delays unreliable. We consider methods for measuring time delays with both Type Ia and Type II-P supernovae by simulating spectra in microlensing systems. Both types of supernovae may be effectively used to measure the Hubble constant\, especially with the number of detections that are expected with LSST and the Roman Space Telescope. These measurements can also be used to constrain the properties of dark matter substructure given a sufficient number of systems. We’ve also been working on understanding the local distributions of dark matter using an “acceleration ladder” built using local direct acceleration measurements combined with dynamical constraints on the Milky Way potential.
URL:https://inpa.lbl.gov/event/speaker-peter-craig-lbnl/
LOCATION:50A-5132 / https://lbnl.zoom.us/j/95016696011?pwd=Tk1XOW1Xd3RYRnlsc2tEYmRWZlVVZz09\, One Cyclotron Road\, 50A-5132\, Berkeley\, CA\, 94720\, United States
ORGANIZER;CN="Noah Weaverdyck":MAILTO:NWeaverdyck@lbl.gov
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221116T120000
DTEND;TZID=America/Los_Angeles:20221116T130000
DTSTAMP:20260427T184612
CREATED:20221112T042815Z
LAST-MODIFIED:20221112T050934Z
UID:1290-1668600000-1668603600@inpa.lbl.gov
SUMMARY:SPEAKER - Nick Kokron (Stanford University) - TITLE:  Pen-and-Paper Meets Supercomputing: Building Accurate Models for Cosmological Surveys
DESCRIPTION:LOCATION: IN-PERSON – Sessler Conference Room Building 50A-5132 \nTITLE: Pen-and-Paper Meets Supercomputing: Building Accurate Models for Cosmological Surveys \nABSTRACT: Stage-IV cosmological surveys are poised to revolutionize our understanding of the Universe. The vast data sets collected by surveys like DESI\, Rubin and CMB-S4 will be orders of magnitude more powerful than their precursors from the last decade\, and will significantly sharpen our understanding of unknown properties of the Universe. These include the properties of dark energy\, the masses of neutrinos and the fundamental nature of the primordial fluctuations in the early Universe. However the statistical uncertainties of upcoming observations are so small that models for the statistics we measure are not yet accurate enough to analyze their whole datasets. I will introduce a program of research dedicated to addressing the challenge of accurately modelling these data and making our cosmological surveys the most powerful they can be. This program is underpinned by a fruitful marriage of traditionally disparate techniques — supercomputer simulations and pen-and-paper calculations — to describe the growth and evolution of large-scale structure in the Universe. I will show that their combination is more powerful than the sum of its parts\, and will play a key role in extracting the most amount of information from DESI and its cross-correlations with weak and CMB lensing surveys in the coming future. \nZOOM Information –  \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/91782268585 \nMeeting ID: 917 8226 8585
URL:https://inpa.lbl.gov/event/speaker-nick-kokron-stanford-university-title-pen-and-paper-meets-supercomputing-building-accurate-models-for-cosmological-surveys/
ORGANIZER;CN="Patrick McDonald":MAILTO:pvmcdonald@lbl.gov
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221118T120000
DTEND;TZID=America/Los_Angeles:20221118T130000
DTSTAMP:20260427T184612
CREATED:20221116T013539Z
LAST-MODIFIED:20221117T220553Z
UID:1304-1668772800-1668776400@inpa.lbl.gov
SUMMARY:SPEAKER: Daniel Kodroff (Penn State University) - TITLE: Background Modeling and First Results From The LUX-ZEPLIN Dark Matter Experiment
DESCRIPTION:This is a VIRTUAL Event \nTITLE: Background Modeling and First Results From The LUX-ZEPLIN Dark Matter Experiment \nABSTRACT: LUX-ZEPLIN (LZ) is a dark matter experiment located at the Sanford Underground Research Facility in South Dakota\, USA employing a 7 tonne active volume of liquid xenon in a dual-phase time projection chamber (TPC). It’s surrounded by an instrumented xenon “skin” region and gadolinium-loaded liquid scintillator outer detector\, primarily serving as active vetoes for gamma-ray and neutron backgrounds\, respectively\, all contained within an ultra-pure water tank. A comprehensive material\nassay and selection campaign for detector components\, along with a xenon purification campaign\, have further ensured an ultra-low background environment. These mitigations have allowed LZ to achieve a background rate of (63.0 ± 4.5) x 10−6 events/keVee/kg/day in the low energy region\, approximately 60 times lower than that of its predecessor LUX experiment. In this low background region\, LZ has recently set new world-leading limits for the spin-independent elastic scattering of nuclear recoils of Weakly Interacting Massive Particles (WIMPs) with masses above 9 GeV/c^2 using an exposure of 60 live days and a fiducial mass of 5.5 tonnes. This talk will provide an overview of the LZ detector and a description of its backgrounds with an emphasis on techniques to constrain these backgrounds in situ. I will also discuss the first results from LZ and briefly discuss its future science program. \nZOOM Information –  \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/91782268585 \nMeeting ID: 917 8226 8585
URL:https://inpa.lbl.gov/event/speaker-daniel-kodroff-penn-state-university-title-background-modeling-and-first-results-from-the-lux-zeplin-dark-matter-experiment/
LOCATION:50A-5132- Sessler\, 50A-5132 Sessler Conference Room\, CA
ORGANIZER;CN="Patrick McDonald":MAILTO:pvmcdonald@lbl.gov
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