Monday, 10/21/24
03:30 PM - 04:30 PM
In-person and Zoom
Zoom:
https://stanford.zoom.us/j/97829005725?pwd=LPa5sukpsL9BagRTcSJzKiQB1b6ZqC.1#success
Stanford Linear Accelerator (SLAC) Colloquium Series
2575 Sand Hill Rd, Building 51
Kavli Auditorium
Menlo Park, CA 94025
nEXO and the quest for neutrino-less double beta decay
Neutrinos, the only neutral elementary fermions, have provided many surprises. Flavor oscillations reveal the non-conservation of the lepton flavor number and demonstrate that neutrino masses are finite; yet they are surprisingly much smaller than those of other fermions (by at least six orders of magnitude!) It is then natural to ask if the mechanism providing the mass to neutrinos is the same that gives masses to the other (charged) elementary fermions and if neutrinos are described by 4-component Dirac wavefunctions or, as is possible for neutral particles, by 2-component Majorana ones.
The hypothetical phenomenon of neutrino-less double-beta decay can probe the Majorana nature of neutrinos and the conservation of the total lepton number. It may also help elucidating the origins of mass in the neutrino sector. This is the Frontier of neutrino physics.
Following the well-known principle that there is no free lunch in life, interesting half-lives for neutrino-less double-beta decay exceed 1025 years (or ~1015 times the age of the Universe!) making experiments rather challenging. I will describe nEXO, a 5-tonne, enriched Xenon experiment with a sensitivity reaching beyond 1028 years, or >100 times the current state of the art. The nEXO detector derives directly from EXO-200, a very successful, rogue detector built by a collaboration with a heavy SLAC-Stanford participation.
Speaker: Giorgio Gratta, Stanford University
Attend in person or online by clicking here:
https://stanford.zoom.us/j/97829005725?pwd=LPa5sukpsL9BagRTcSJzKiQB1b6ZqC.1#success
Website:
https://colloquium.slac.stanford.edu/events/2024-09-04-nexo-and-quest-neutrino-less-double-beta-decay
Cost: Free
==============================
Monday, 10/21/24 4:00 PM
In-person
Sonoma State University - What Physicists Do
1801 E. Cotati Ave.
Darwin Hall, Room 103
Rohnert Park, CA 94928
Dark Matter Searches Using Gravitational Wave Detectors
Dr. Nancy Aggarwall of UC Davis conducts precision measurements of fundamental physics. She uses techniques from Quantum Optics, atomic physics, and condensed matter physics to look for new physics in the form of dark matter candidates or gravitational waves from astrophysical, cosmological, and exotic sources.
Website:
https://phys-astro.sonoma.edu/public-events/what-physicists-do
Cost: Free
=============================
Monday, 10/21/24 4:30 PM
In-person
Physics North
UC Berkeley
Room 1
Berkeley, CA 94720
Spinning Black Holes in Binaries
The spins of black holes in binaries observed with gravitational waves are an essential probe of physics on multiple scales, from the astrophysical formation environments of compact binaries to fundamental physics. At the same time, the imprint of spin on the observed signals is weak, making constraints more challenging compared to the other key properties of black holes, namely their mass. I will discuss how spins affect the mergers of black holes, the current status of spin measurements and its astrophysical implications, and the challenges in ensuring robust and unbiased measurements.
Speaker: Katerina Chatziioannou, California Institute of Technology
Website:
https://events.berkeley.edu/physics/event/262523-physics-colloquia-spinning-black-holes-in-binaries
Cost: Free
=============================
Tuesday, October 22, 2024
7:15 p.m. - 9 p.m. Pacific
In-person and recorded
Mt. Diablo Astronomical Society
Lindsay Wildlife Experience
1931 First Avenue
Walnut Creek, CA 94597
Topic: Copernican Astromomy Before Copernacus.
Speaker: Dr. Don Dossa, LLL, TVS
Website:
https://nightsky.jpl.nasa.gov/events/mdas/28056/
=============================
Thursday, 10/24/24 3:30 PM
In-person
Physics North
UC Berkeley
Room 1
Berkeley, CA 94720
Little Red Dots (James Webb Space Telescope)
Speaker: Jenny Greene, Princeton University
Website:
https://astro.berkeley.edu/news/events/astronomy-colloquium/
Cost: Free
==============================
Friday, 10/25/24
11:00 AM - 12:00 PM
In-person
Philosophy Hall
UC Berkeley
Room 223
Berkeley, CA 94720
Max Planck, Kiel, and the beginning of the quantum era
The year 2025 has been designated „International year of Quantum Science and Technology“ by UNESCO to inform the public about the revolution brought to science and everyday life by quantum theory. In fact, the year 2025 marks the 100th anniversary of the Schrödinger equation ??" the mathematical foundation of quantum mechanics. At the same time, quantum physics was born 25 years earlier when Max Planck put forward his hypothesis about quantization of the energy of electromagnetic radiation.
In this talk, Prof. Dr. Michael Bonitz (Kiel University) will recall the status of physics at the end of the 19th century where everybody thought that physics would be complete. This view was shattered by Planck; Prof. Dr. Bonitz sketches Planck’s unusual path to his discovery that completely revolutionized science and technology ??" a revolution that is still ongoing.
As a footnote, Planck was born in Kiel, held his first professorship at Kiel University, and throughout his life he maintained close ties to his home town. This lecture will close in describing activities in Kiel towards creation of a science center for Planck and quantum physics.
Speaker: Michael Bonitz, Institute for Theoretical Physics and Astrophysics Christian-Albrechts Universität Kiel, Germany
Website:
https://events.berkeley.edu/ies/event/270800-michael-bonitz-max-planck-kiel-and-the-beginning-of-t
Cost: Free
==============================
Friday, 10/25/24
12:00 PM - 01:00 PM
In-person
Earth and Marine Sciences Building
UC Santa Cruz
Room A340
Santa Cruz, CA 95064
Exploring the Subsurface Processes of Ice Sheets and Icy Moons with Ice Penetrating Radar
Speaker: Dusty Schroeder
Website:
https://eps.ucsc.edu/news-events/igpp-seminar/fall-2024.html
Cost: Free
==============================
Friday, 10/25/24
07:30 PM - 09:30 PM
In-person
San Jose Astronomical Association
Houge Park
3972 Twilight Drive
San Jose, CA 95124
In Town Star Party
Come join San Jose Astronomical Association (SJAA) for an evening of stargazing.
Event details:
• Events are held at the parking lot of our headquarters, Houge Park San Jose. The event duration is 2 hours. SJAA volunteers will share night sky views from their telescopes.
• Please refrain from bringing your own telescopes (Binoculars are welcome). If you like to be a volunteer with or without a telescope please email at "
itsp@sjaa.net".
• SJAA as an all volunteer-nonprofit org depends on the City of San Jose to use facilities at Houge Park. To maintain this relationship, we must provide facility-use data to the city. Therefore, we ask you to sign in (no traceable personal data collected) when you arrive at the event.
Website:
https://www.meetup.com/sj-astronomy/events/302905574/
Cost: Free
==============================
Friday, 10/25/24
07:30 PM - 09:00 PM
In-person
Sonoma State University Public Astronomy
Observatory
1801 East Cotati Ave
Rohnert Park, CA 94928
Sonoma State Public Astronomy Viewing Nights
Check weblink before attending to see if the event is happening, or canceled due to weather.
Website:
https://phys-astro.sonoma.edu/public-events/public-viewing-nights
Cost: Free
==============================
Friday, 10/25/24 7PM
In-person
Telescope Makers Workshop
Chabot Space and Science Center
10000 Skyline Boulevard
Oakland, CA 94619-245
The Chabot Telescope Maker's workshop reopens! Chabot's TMW is one of only a handful of regularly scheduled telescope making workshops in the U.S., and probably the world; it meets every Friday evening throughout the year, except Memorial Day weekend. It has been in operation since December of 1930, founded by Franklin B. Wright, and is currently run by Eastbay Astronomical Society member Rich Ozer, with help from other EAS members, Dave Barosso, Barry Leska, and others. The price of admission is FREE. All you have to do is show up, buy a mirror blank and a "tool" (typically around $100 - $200 depending on the size of the mirror) and start "pushin' glass!" We supply you with instruction, the various grits you'll need to first grind, and then polish and figure your mirror, and all the testing equipment needed. With a small bit of luck, you could wind up with a telescope that costs 1/3 or 1/4 the cost of a store-bought telescope, that is yet optically superior! It does take time - depending on how much time you put in on it, and other factors, it could take a few months.. But, it's a fun project, great for kids, and at the end you get a great telescope!
Enter from the main loading dock behind the main building.
If you have a project, bring it with you so we can assess next steps.
You can also bring any other equipment or literature you may have
questions about.
For more information call or email Richard Ozer at richozer1@... or phone (510) 406-1914.
=============================
Friday, 10/25/24 9PM-11PM for night observing and Saturday 10/26/24 10AM-12 Noon for solar observing
In-person
The Foothill Observatory is open again!
Foothill Observatory
12345 El Monte Road
Los Altos Hills, CA 94022
Foothill Observatory now Open EVERY clear Friday night and Saturday morning
The Foothill College Astronomy Department and Peninsula Astronomical Society (PAS) have reopened public viewing programs at Foothill College Observatory on:
· Every clear Friday night from 9 p.m. to 11 p.m. for star gazing
· Every clear Saturday morning from 10 a.m. to noon for solar viewing
ATTENDANCE GUIDELINES
The COVID and masking policy for visiting Foothill Observatory is the same as that of Foothill College per their Health & Safety information:
1) Vaccinations are required
2) masking is strongly encouraged.
Websites:
https://foothill.edu/astronomy/observatory.html
and
https://pastro.org
=============================
Friday, 10/25/24 and Saturday 10/26/24
07:30 PM - 10:00 PM
In-person
Chabot Space and Science Center
10000 Skyline Blvd
Oakland, CA 94619
Free Telescope Viewings
Join Chabot astronomers on the Observatory Deck for a free telescope viewing! Weather permitting, this is a chance to explore stars, planets and more through Chabot’s historic telescopes. Chabot’s three large historic telescopes offer a unique way to experience the awe and wonder of the Universe. Our observatory deck offers breathtaking views 1,500 feet above the Bay. Three observatory domes house the Center’s 8-inch (Leah, 1883) and 20-inch (Rachel, 1916) refracting telescopes, along with a 36-inch reflecting telescope (Nellie, 2003).
Are the skies clear for viewing tonight? Viewing can be impacted by rain, clouds, humidity and other weather conditions. Conditions can be unique to Chabot because of its unique location in Joaquin Miller Park. Before your visit, check out the Weather Station to see the current conditions at Chabot.
Website:
https://chabotspace.org/events/free-telescope-viewings/
Before your visit:
• Check humidity on our Weather Station:
https://chabotspace.org/weather-station/
• Check cloud cover using the live view webcam of the Center:
https://ops.alertcalifornia.org/cam-console/2578
==============================
Saturday, 10/26/24 7:30 PM
Attend in person or online
East Bay Astronomical Society
Chabot Space & Science Center, 10000 Skyline Blvd
Classroom 4 formerly knows as Copernicus
Oakland, CA 94619
Watch on Facebook:
https://www.facebook.com/EastbayAstroSociety/videos/
Baking With the Stars, Recipes for Getting Started in Astrophotography
Baking and Astrophotography share many things in common: You need the right equipment, attention to detail, and a creative flair. If it seems intimidating, following a recipe can be a great way to start. SFAA member Jason Griesbach will guide you through Four Astrophotography Recipes, using only modest equipment. The result will be a heavenly Four-Course “Meal”, as we explore various ways to experience the night sky.
Speaker: Jason Griesbach, San Francisco Amateur Astonomers
Website:
https://eastbayastro.org/events/
Cost: Free
==============================
Monday, 10/28/24 4:00 PM
In-person
Sonoma State University - What Physicists Do
1801 E. Cotati Ave.
Darwin Hall, Room 103
Rohnert Park, CA 94928
Cosmic Alchemy: How Neutron Star Smash-Ups Forge Heavy Atoms
The source of about half of the heaviest elements in the Universe has been a mystery for a long time. The key may lie in the collision of neutron stars??"violent, energetic, and unusual events that we are now beginning to observe. Dr. Enrico Ramirez Ruiz of UC Santa Cruz will present a talk focusing on recent advances in our understanding of the origin of the heaviest and rarest elements in the Universe.
Website:
https://phys-astro.sonoma.edu/public-events/what-physicists-do
Cost: Free