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Events During the Week of January 31st through February 7th, 2021

Monday, February 1st, 2021

Monday Science Seminar
Monday Science Seminar w/ Benjamin Rosenwasser (UW-Madison)
Time: 12:00 pm - 1:00 pm
Place:
Speaker: Benjamin Rosenwasser, University of Wisconsin - Madison
Abstract: Over the past decade the Cosmic Origins Spectrograph (COS) has obtained high S/N FUV spectra of hundreds of distant QSOs, illuminating the gaseous structures that lie within the cosmic web at redshift < 1. Besides Lyman alpha forest absorption, the next most common type of absorber are low column density OVI absorbers, often appearing as apparent single components with one or two associated HI lines. Many studies have shown that the absorbers with large column densities are in the inner regions of galaxy halos, while the much more numerous single component OVI absorbers have not been the subject of much scrutiny. We have been studying a large sample of 600 OVI absorbers, and I will focus on our effort to characterize the galaxy environments of the common single component systems. We show that some appear to trace halos, but many are clearly isolated, and sometimes embedded within filamentary structure traced by nearby galaxies on Mpc scales. We discuss the possible origins and physical properties of the gas in this intra-filament medium.
Host: Melinda Soares-Furtado
Presentation: Monday_Science_Seminar.pdf
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Plasma Physics (Physics/ECE/NE 922) Seminar
Real-time wall conditioning of fusion devices by injection of low-Z powders
Time: 12:00 pm - 1:00 pm
Place: Join Zoom Meeting
Speaker: Alessandro Bortolon, PPPL
Abstract: Join Zoom Meeting Meeting ID: 918 3541 9103 Passcode: 578475
Host: Chris Hegna
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Plasma Theory Seminar
MHD Transient Seeding of Disruptive Neoclassical Tearing Modes (NTMs)
Time: 4:00 pm
Place: Zoom Meeting
Speaker: J. D. Callen, UW-Madison
Abstract:
Join Zoom Meeting

Meeting ID: 954 878 7359
Passcode: 4Ugg1v

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115.114.115.7 (India Hyderabad)
213.19.144.110 (Amsterdam Netherlands)
213.244.140.110 (Germany)
103.122.166.55 (Australia)
149.137.40.110 (Singapore)
64.211.144.160 (Brazil)
69.174.57.160 (Canada)
207.226.132.110 (Japan)
Meeting ID: 954 878 7359
Passcode: 596249
Host: Chris Hegna
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Tuesday, February 2nd, 2021

Network in Neutrinos, Nuclear Astrophysics, and Symmetries (N3AS) Seminar
New Physics and the Black Hole Mass Gap
Time: 2:00 pm
Place:
Speaker: Sam McDermott , Fermilab
Abstract: The LIGO/Virgo collaboration has recently announced the detection of GW190521: a heavy binary black hole merger with component masses in the "black hole mass gap," which cannot be explained by standard stellar structure theory. In this talk, I will discuss how new light particles that couple to the Standard Model can act as an additional source of energy loss in the cores of population-III stars, dramatically altering their evolution and potentially explaining GW190521. The black hole mass gap will emerge as a powerful tool for studying beyond the Standard Model particle physics.
Host: Baha Balantekin
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Wednesday, February 3rd, 2021

R. G. Herb Condensed Matter Seminar
TBD
Time: 10:00 am - 11:00 am
Place: 5310 Chamberlin Hall
Speaker: Justyna Zwolak
Host: Dr. Mark Eriksson
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Department Meeting
Time: 12:15 pm - 1:15 pm
Place: Virtual see "abstract" for connection info
Speaker: Sridhara Dasu, Department Chair
AIMEE N LEFKOW is inviting you to a scheduled Zoom meeting.

Topic: Department Meeting
Time: Jan 13, 2021 12:15 PM Central Time (US and Canada)
Every week on Wed, until May 12, 2021, 18 occurrence(s)
Jan 13, 2021 12:15 PM
Jan 20, 2021 12:15 PM
Jan 27, 2021 12:15 PM
Feb 3, 2021 12:15 PM
Feb 10, 2021 12:15 PM
Feb 17, 2021 12:15 PM
Feb 24, 2021 12:15 PM
Mar 3, 2021 12:15 PM
Mar 10, 2021 12:15 PM
Mar 17, 2021 12:15 PM
Mar 24, 2021 12:15 PM
Mar 31, 2021 12:15 PM
Apr 7, 2021 12:15 PM
Apr 14, 2021 12:15 PM
Apr 21, 2021 12:15 PM
Apr 28, 2021 12:15 PM
May 5, 2021 12:15 PM
May 12, 2021 12:15 PM
Please download and import the following iCalendar (.ics) files to your calendar system.
Weekly:
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Meeting ID: 924 9932 5588
Passcode: 337209
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Meeting ID: 924 9932 5588
Passcode: 337209
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213.244.140.110 (Germany)
103.122.166.55 (Australia)
149.137.40.110 (Singapore)
64.211.144.160 (Brazil)
69.174.57.160 (Canada)
207.226.132.110 (Japan)
Meeting ID: 924 9932 5588
Passcode: 337209

Host: Sridhara Dasu
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NPAC (Nuclear/Particle/Astro/Cosmo) Forum
The diffusion of cosmic rays and post-doc application
Time: 4:30 pm
Place: Zoom Meeting
Speaker: Yingying Guo, Institute of High Energy Physics, China
Abstract: Join Zoom Meeting: Meeting ID: 925 3494 2992
Passcode: 358855
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Host: Ke Fang
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Graduate Program Event
3MT® Three Minute Thesis Finals
Time: 6:00 pm - 7:00 pm
Place: or see Facebook link in abstract
Speaker: Jimena Gonzalez, UW–Madison Physics
Abstract: Three Minute Thesis® is an international competition in which graduate students explain their research to a general audience in three minutes or less. And this year, Physics grad student Jimena Gonzalez is one of nine UW–Madison finalists competing!

The finalists will compete for cash prizes and a chance to represent UW-Madison at the regional competition. Join us to watch engaging presentations, hear from the competitors, vote on the People's Choice award, and see the winners announced!

This event is free and open to the public! For more info, visit:
View online:




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Thursday, February 4th, 2021

Astronomy Colloquium
SPECIAL TIME 10 AM
Interstellar Shocks
Time: 10:00 am - 11:00 am
Place: Zoom meeting(see Abstract ) SPECIAL TIME 10AM
Speaker: Antoine Gusdorf, Laboratoire de Physique de l’École Normale Supérieure & Paris Observatory, Paris, France
Abstract: The interstellar medium is an out-of-equilibrium medium, where energy is constantly injected in various forms: mechanical energy, photons, or cosmic rays. The propagation of shock waves is ubiquitous in the interstellar medium, where it represents an important part of the mechanical energy input. For instance, interstellar shocks are generated by the birth (jets and bipolar outflows), life (stellar winds) or death (supernova and supernova remnants) of certain stars, or by the formation of molecular clouds (converging flows). In this talk, I propose to review the progresses in our knowledge of the propagation of shocks in the interstellar medium. These progresses have been made possible by more and more efficient telescopes in various wavelengths (Spitzer, Herschel, SOFIA, ALMA, NOEMA, APEX, the IRAM-30m telescope…), and also by the developments of sophisticated models. I will illustrate how observations of various species has progressively led us to include non-stationarity effects, new geometries, and new physical and chemical processes in shock models to better address the classical questions related to the propagation of shocks: What kind of chemistry is operating in shocked regions, and hence what is their contribution to the cycle of matter in the Galaxy ? What is the energetic impact and feedback of shocks on their local environment ? What is their contribution to the energetic balance of galaxies ? What can shock tell us about scenarios of star formation ?
Zoom:
Host: Professor Snezana Stanimirovic
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Cosmology Journal Club
Time: 12:00 pm - 1:00 pm
Abstract: Cosmology Journal Club is back! We will be having virtual meetings this semester.

Each week, we start with a couple scheduled 15 minute talks about one's research, or an arXiv paper. The last 30 minutes will typically be open to the group for anyone to discuss an arXiv paper.

All are welcome and all fields of cosmology are appropriate.

Contact Ross Cawthon, cawthon@wisc, for more information.

Zoom info
Meeting ID: 93592708053, passcode: cmbadger

Or click:
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Friday, February 5th, 2021

Women+ in Plasma Physics (W+iPP)
Time: 12:00 pm
Place: Zoom
Abstract: Women+ in Plasma Physics (W+iPP) will be having our first meeting this Friday, February 5th at 12 PM. If you are interested in learning more about the group, getting involved, or sharing your ideas with us, please join us for the meeting using the Zoom info below! You can also contact Carolyn Schaefer (email: cschaefer6@wisc.edu) with any questions, etc.

W+iPP is a new group here at UW-Madison whose mission is to foster a community that supports and promotes women and gender minorities in plasma physics, both here on campus and in the plasma physics field as a whole. We also aim to share our passion for plasma physics with younger women+ in STEM through educational outreach. Our group is supported by the Engineering Physics department, but we are open to any graduate or undergraduate student, faculty member, postdoctoral researcher, or scientist who identifies as a woman, a gender minority, or an ally of women and gender minorities in plasma physics.

Virtual Meeting Info:

Topic: W+iPP Kickoff Meeting
Time: Feb 5, 2021 12:00 PM Central Time (US and Canada)

Join Zoom Meeting

Meeting ID: 846 3669 0367
Passcode: 905342
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Meeting ID: 846 3669 0367
Passcode: 905342
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Host: Stephanie Diem
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Theory Seminar (High Energy/Cosmology)
Phenomenological and Quantum Gravity constraints from Charged Black Hole Evaporation in de Sitter Space
Time: 2:00 pm - 3:00 pm
Place: For zoom link, sign up at:
Speaker: Gerben Venken, Heidelberg University
Abstract: In this talk, I will discuss the decay of charged black holes in de Sitter space. We will establish how black hole mass and charge change over time due to both Hawking radiation and Schwinger pair production as a function of the masses and charges of the elementary particles in the theory. By demanding that black holes decay 'sensibly', one can constrain the spectrum of allowed particles in a theory in an interesting way. This fits into the larger picture of the Swampland program of constraining effective field theories by demanding they can be completed into consistent quantum gravity theories. We will find a lower bound on the mass of charged particles by demanding that large charged black holes evaporate back to empty de Sitter space, in accordance with the thermal picture of the de Sitter static patch. This bound is satisfied by the charged spectrum of the Standard Model. This bound has phenomenological implications for the cosmological hierarchy problem and inflation. The bound has a nice interplay with other constraints obtained in the swampland program. The bound can be applied to argue against the consistency of certain de Sitter supergravity models. There has been much discussion about the consistency of de Sitter vacua in string theory and quantum gravity. Interestingly, proposed string theory constructions of de Sitter vacua involving uplifting warped throats such as KKLT and LVS seem at present to satisfy both our bound and the weak gravity conjecture.
Host: Lars Aalsma
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NPAC (Nuclear/Particle/Astro/Cosmo) Forum
Long-term TeV spectra of blazars Mrk 421 and Mrk 501
Time: 2:00 pm - 2:50 pm
Place: Zoom meeting
Speaker: Sara Coutino, Instituto Nacional de Astrofísica, Óptica y Electrónica (INAOE), Mexico
Abstract: Join Zoom Meeting: Meeting ID: 995 3368 9936
Passcode: 249875
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Host: Ke Fang
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Department Coffee Hour
Department Coffee Hour (Virtual)
Time: 3:30 pm - 4:30 pm
Place: Virtual (see abstract for connection info)
Abstract: Topic: Department Coffee Hour
Time: Jan 29, 2021 03:30 PM Central Time (US and Canada)
Every week on Fri, until May 14, 2021, 16 occurrence(s)
Jan 29, 2021 03:30 PM
Feb 5, 2021 03:30 PM
Feb 12, 2021 03:30 PM
Feb 19, 2021 03:30 PM
Feb 26, 2021 03:30 PM
Mar 5, 2021 03:30 PM
Mar 12, 2021 03:30 PM
Mar 19, 2021 03:30 PM
Mar 26, 2021 03:30 PM
Apr 2, 2021 03:30 PM
Apr 9, 2021 03:30 PM
Apr 16, 2021 03:30 PM
Apr 23, 2021 03:30 PM
Apr 30, 2021 03:30 PM
May 7, 2021 03:30 PM
May 14, 2021 03:30 PM
Please download and import the following iCalendar (.ics) files to your calendar system.
Weekly:
Join Zoom Meeting

Meeting ID: 979 8528 1970
Passcode: 309601
One tap mobile
+13126266799,,97985281970#,,,,*309601# US (Chicago)
+19292056099,,97985281970#,,,,*309601# US (New York)

Dial by your location
+1 312 626 6799 US (Chicago)
+1 929 205 6099 US (New York)
+1 301 715 8592 US (Washington D.C)
+1 346 248 7799 US (Houston)
+1 669 900 6833 US (San Jose)
+1 253 215 8782 US (Tacoma)
Meeting ID: 979 8528 1970
Passcode: 309601
Find your local number:
Join by SIP
97985281970@zoomcrc.com

Join by H.323
162.255.37.11 (US West)
162.255.36.11 (US East)
115.114.131.7 (India Mumbai)
115.114.115.7 (India Hyderabad)
213.19.144.110 (Amsterdam Netherlands)
213.244.140.110 (Germany)
103.122.166.55 (Australia)
149.137.40.110 (Singapore)
64.211.144.160 (Brazil)
69.174.57.160 (Canada)
207.226.132.110 (Japan)
Meeting ID: 979 8528 1970
Passcode: 309601


Host: Climate and Diversity Committee
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