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X-WR-CALDESC:Events for Physics & Astronomy
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DTSTART;TZID=America/Chicago:20251010T130000
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DTSTAMP:20260610T134144
CREATED:20250925T153653Z
LAST-MODIFIED:20251006T173953Z
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SUMMARY:CGCA Seminar - Hector Silva
DESCRIPTION:Prof. Hector Silva\, Assistant Professor at the Department of Physics of the University of Illinois Urbana-Champaign\nThe ringing of a different bell: quasinormal modes and their excitation beyond general relativity \nThe inference of quasinormal mode frequencies from the ringdown part of gravitational-wave signals produced by the coalescence of black hole binaries can be used to infer the mass and spin of the remnant black hole and\, possibly\, test general relativity and extensions thereof in the strong-field regime. In this seminar\, I will share some findings of a long-term project aimed at studying the quasinormal-mode spectrum of black holes beyond general relativity\, and how these modes are excited given an initial perturbation. I will interpret these findings from an effective-field-theory perspective\, and discuss some (a priori!) surprising consequences. \nThe CGCA Friday Seminar Series is hosted by the Center for Gravitation\, Cosmology & Astrophysics at the University of Wisconsin-Milwaukee. These seminars cover a broad number of topics related to the Center’s research areas. Talk titles and abstracts will be posted when available.
URL:https://uwm.edu/physics/event/cgca-seminar-hector-silva/
LOCATION:Kenwood IRC 2175\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:CGCA Seminars
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BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20251015T183000
DTEND;TZID=America/Chicago:20251015T200000
DTSTAMP:20260610T134144
CREATED:20250925T182443Z
LAST-MODIFIED:20250925T182443Z
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SUMMARY:CGCA Public Talk - Searching for Life in the Universe
DESCRIPTION:Searching for Life in the Universe\nPresented by Dr. Dawn Erb \nWe hope you will join us on Wednesday\, October 15 in the new Chemistry Building\, Room #108 for Dr. Dawn Erb’s presentation\, “Searching for Life in the Universe.” \nThis is a free event! Doors open at 6:30 pm with cookies and dessert bars as well as a cash bar. The program will start at 7:00 pm.  \nPlease reserve your free spot for this event. More information is available on the CGCA website. \nDue to construction\, we recommend you use the parking garage under the Lubar College of Business\, located at 3202 N. Maryland Ave. This is a full pay garage that offers ADA parking options near the entrance. You will pull a ticket to enter and pay upon exit. You will find the Chemistry Building by walking south on Maryland to the crosswalk. Head west using the crosswalk on the corner of Maryland Ave. and Kenwood Blvd. The new Chemistry Building is just a half a block\, with entrances on Kenwood Blvd. Please be sure to note the restrictions on parking signs if you choose to park on the street. \nADA parking spaces are also available in the front of the Chemistry Building. You will need to pay for parking through the MKE Park Mobile app by using code 59043 which will allow extending the parking session past the 30 minutes limit on the Chemistry circle signs. The hourly rate is $0.80/hour. \nLastly\, if you don’t wish to use a parking app\, you can call UWM Transportation Services at 414-229-4000 on the day of and pay for parking over the phone. They will collect payment via a credit/debit card. They will ask for your license plate information and email if you would like a receipt. The office is open until 4:30 pm weekdays. \nWe look forward to seeing you there!
URL:https://uwm.edu/physics/event/cgca-public-talk-searching-for-life-in-the-universe/
LOCATION:Chemistry 108\, 2050 E Kenwood Blvd\, Milwaukee\, WI\, 53201\, United States
CATEGORIES:Leonard E Parker Center,Public Event
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DTSTART;TZID=America/Chicago:20251017T130000
DTEND;TZID=America/Chicago:20251017T140000
DTSTAMP:20260610T134144
CREATED:20250925T154334Z
LAST-MODIFIED:20251013T181702Z
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SUMMARY:CGCA Seminar - Usha Raut
DESCRIPTION:Prof. Usha Raut\, Milwaukee School of Engineering\nCan LIGO be Relevant for High Energy Physics? \nThere have been spectacular advances by LIGO\, and other gravitational wave detectors in recent years. But an obvious limitation is that gravitational wave detectors currently in operation mostly deal with frequencies below 10 kHz. At the same time\, it is generally accepted that there could be very promising physics still to be discovered at higher frequency scales of the gravitational wave spectrum. This can be understood better when we consider the vast frequency ranges that have been discovered for the electromagnetic spectrum and the incredibly useful applications that have been found for high frequency x-rays and gamma rays. \nTherefore\, a major goal of this presentation is to get a dialogue started on the possibility of a LIGO expansion to high and ultra-high frequencies of the gravitational wave spectrum within a laboratory setting\, without necessarily relying on astrophysical or cosmological sources. \nThe CGCA Friday Seminar Series is hosted by the Center for Gravitation\, Cosmology & Astrophysics at the University of Wisconsin-Milwaukee. These seminars cover a broad number of topics related to the Center’s research areas. Talk titles and abstracts will be posted when available.
URL:https://uwm.edu/physics/event/cgca-seminar-usha-raut/
LOCATION:Kenwood IRC 2175\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:CGCA Seminars
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DTSTART;TZID=America/Chicago:20251024T153000
DTEND;TZID=America/Chicago:20251024T170000
DTSTAMP:20260610T134144
CREATED:20251002T142122Z
LAST-MODIFIED:20251020T211711Z
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SUMMARY:Physics Colloquium - Amanda Baylor
DESCRIPTION:Early Warning of Gravitational Waves from Neutron Star Mergers\nAmanda Baylor\nGraduate Student\nUniversity of Wisconsin-Milwaukee \nFor the past decade\, ground-based gravitational-wave observatories have been making detections of ripples in the fabric of spacetime from the mergers of black holes and neutron stars. Mergers involving at least one neutron star could also produce electromagnetic counterparts which may reveal new insights into the physics of these astrophysical phenomena.  However\, if electromagnetic observatories are not pointed at the location of the source prior to merger\, we miss vital information about the physics of merger.  This presents a need for early-warning alerts\, which are alerts that are sent to observatories once a gravitational wave has been detected but before the objects collide and merge.  \nThis talk will provide an overview of gravitational-wave physics from detection to data analysis and discuss the prospects for early-warning detection of neutron star mergers.
URL:https://uwm.edu/physics/event/physics-colloquium-amanda-baylor/
LOCATION:Chemistry 108\, 2050 E Kenwood Blvd\, Milwaukee\, WI\, 53201\, United States
CATEGORIES:Physics Colloquia
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DTSTART;TZID=America/Chicago:20251025T130000
DTEND;TZID=America/Chicago:20251025T150000
DTSTAMP:20260610T134144
CREATED:20250925T155542Z
LAST-MODIFIED:20250925T182841Z
UID:10435368-1761397200-1761404400@uwm.edu
SUMMARY:Coffeeshop Astrophysics - Nebulae: From Cradle to Grave\, and Cradle Again
DESCRIPTION:Nebulae: From Cradle to Grave\, and Cradle Again\nSpeakers: Calvin Dear\, Jason Vazquez\, Caleb Ogle \nHave you ever looked at a stunning picture from NASA full of swirling colors\, almost like it should be hanging in an art museum? Chances are\, you’re looking at a nebula. Nebulae are enormous clouds of dust and gas out in space. Some nebulae are the aftermath of a supernova\, the explosive death of a massive star. Others serve as the birthplace of many new stars\, formed by the gravitational pull of gas and radiative push of their first stars. Some nebulae even act as both. Join us as we explore nebulae and their role in star formation\, and of course\, look at many breathtaking pictures. \nMore information is available on the Coffeeshop Astrophysics website.
URL:https://uwm.edu/physics/event/coffeeshop-astrophysics-nebulae-from-cradle-to-grave-and-cradle-again/
LOCATION:Anodyne Coffee Shop\, 224 W Bruce Street\, Milwaukee\, WI\, United States
CATEGORIES:Public Event
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BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20251031T153000
DTEND;TZID=America/Chicago:20251031T170000
DTSTAMP:20260610T134144
CREATED:20251002T142223Z
LAST-MODIFIED:20251020T211455Z
UID:10435373-1761924600-1761930000@uwm.edu
SUMMARY:Physics Colloquium - Pratyusava Baral
DESCRIPTION:Detecting & Measuring Gravitational Waves in Current and Future Observatories\nPratyusava Baral\nGraduate Student\nUniversity of Wisconsin-Milwaukee \nLow-latency (near real-time) detection of gravitational waves (GW) is crucial for multimessenger astronomy. I contribute to maintaining and operating the GstLAL-based search pipeline\, a flagship detection pipeline used by the LIGO-Virgo-KAGRA collaboration\, for the present observing run (May 2023 – ongoing). To test low-latency performance\, mock data challenges (MDC) are designed. I studied the latencies of sending out public alerts\, used to communicate with astronomers\, after a detection using the MDC. I also demonstrated the feasibility of a neural network-based algorithm that identifies the event with the best skymap for multimessenger follow-up from a set of several GW triggers in low latency. \nLooking forward to next-generation detectors such as Cosmic Explorer (CE)\, I developed the first Bayesian framework to estimate errors on inferred parameters\, incorporating effects due to Earth’s rotation and the long arm-lengths of the detectors. These effects are important for next-generation detectors and can be used to localize sources on the sky. This framework can analyze long and loud signals in ~1 day and is capable of using waveforms containing higher modes of radiation.
URL:https://uwm.edu/physics/event/physics-colloquium-pratyusava-baral/
LOCATION:Chemistry 108\, 2050 E Kenwood Blvd\, Milwaukee\, WI\, 53201\, United States
CATEGORIES:Physics Colloquia
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