Kev Abazajian
@abazajian.net
Father, husband, particle astrophysicist, Professor of Physics & Astronomy. In public service as Chair of the City of Irvine Sustainability Commission & through the Democratic Party.
Views are my own. repost ≠ endorsement
https://physics.uci.edu/~kevork
Views are my own. repost ≠ endorsement
https://physics.uci.edu/~kevork
🔥 Climate change is making wildfire risks in Irvine very real. Join us Oct 30, 6–7:30 p.m. at City Hall for Wildfire Ready Irvine—learn how to harden your home & protect our community. RSVP: shorturl.at/Am72D
— Chair, Irvine Sustainability Commission
#Irvine #WildfireReady #ClimateAction
— Chair, Irvine Sustainability Commission
#Irvine #WildfireReady #ClimateAction
October 20, 2025 at 3:59 AM
🔥 Climate change is making wildfire risks in Irvine very real. Join us Oct 30, 6–7:30 p.m. at City Hall for Wildfire Ready Irvine—learn how to harden your home & protect our community. RSVP: shorturl.at/Am72D
— Chair, Irvine Sustainability Commission
#Irvine #WildfireReady #ClimateAction
— Chair, Irvine Sustainability Commission
#Irvine #WildfireReady #ClimateAction
The Hubble tension may connect to short-baseline neutrino anomalies. Work led by #UCIrvine grad fellow Helena García Escudero shows baryon acoustic oscillations allow extra massive neutrinos—relaxing constraints and linking both puzzles. #cosmology #neutrinos ⚛️ 🔭
arxiv.org/abs/2509.25478
arxiv.org/abs/2509.25478
October 1, 2025 at 5:37 AM
The Hubble tension may connect to short-baseline neutrino anomalies. Work led by #UCIrvine grad fellow Helena García Escudero shows baryon acoustic oscillations allow extra massive neutrinos—relaxing constraints and linking both puzzles. #cosmology #neutrinos ⚛️ 🔭
arxiv.org/abs/2509.25478
arxiv.org/abs/2509.25478
Fun to work out with #UCIrvine graduate fellow Helena García Escudero the details of why extra, sterile neutrinos are preferred (!!) by cosmology when adopting the local Cepheid measurement of the Hubble expansion rate. ⚛️ 🔭 #cosmology #neutrinos #particlephysics #hubbletension
September 29, 2025 at 10:12 PM
Fun to work out with #UCIrvine graduate fellow Helena García Escudero the details of why extra, sterile neutrinos are preferred (!!) by cosmology when adopting the local Cepheid measurement of the Hubble expansion rate. ⚛️ 🔭 #cosmology #neutrinos #particlephysics #hubbletension
Our new paper with Cannon Vogel & Helena García Escudero shows vector-mediated NSI can’t produce sterile neutrino dark matter—ruled out by lab + structure data. But scalar NSI and low reheating models are still in the game!
➡️ arxiv.org/abs/2509.05631
#darkmatter #cosmology #particlephysics ⚛️ 🔭
➡️ arxiv.org/abs/2509.05631
#darkmatter #cosmology #particlephysics ⚛️ 🔭
September 9, 2025 at 2:48 PM
Our new paper with Cannon Vogel & Helena García Escudero shows vector-mediated NSI can’t produce sterile neutrino dark matter—ruled out by lab + structure data. But scalar NSI and low reheating models are still in the game!
➡️ arxiv.org/abs/2509.05631
#darkmatter #cosmology #particlephysics ⚛️ 🔭
➡️ arxiv.org/abs/2509.05631
#darkmatter #cosmology #particlephysics ⚛️ 🔭
Congratulations to Dr. Cannon Vogel, who successfully defended his PhD dissertation today at #UCIrvine. He has become one of the top handful of people expert in warm dark matter production in the early Universe, and the linear cosmological structure arising from it. 🧪 ⚛️ 🔭
August 28, 2025 at 12:14 AM
Congratulations to Dr. Cannon Vogel, who successfully defended his PhD dissertation today at #UCIrvine. He has become one of the top handful of people expert in warm dark matter production in the early Universe, and the linear cosmological structure arising from it. 🧪 ⚛️ 🔭
How Newsom's California redistricting affects OC & Irvine:
CD 40 (Kim): +10.8 R ➡️ +19.6 R
CD 45 (Tran): +2 R ➡️ +2.4 D
CD 46 (Correa): +19.2 D ➡️ +15 D
CD 47 (Min): +0.6 R ➡️ +5.2 D
CD 49 (Levin): +0.8 D ➡️ +4.2 D
Robert Garcia's district (42) moves to OC:
CD 42 (Garcia): +33.4 D ➡️ +6.8 D
CD 40 (Kim): +10.8 R ➡️ +19.6 R
CD 45 (Tran): +2 R ➡️ +2.4 D
CD 46 (Correa): +19.2 D ➡️ +15 D
CD 47 (Min): +0.6 R ➡️ +5.2 D
CD 49 (Levin): +0.8 D ➡️ +4.2 D
Robert Garcia's district (42) moves to OC:
CD 42 (Garcia): +33.4 D ➡️ +6.8 D
August 16, 2025 at 5:50 PM
How Newsom's California redistricting affects OC & Irvine:
CD 40 (Kim): +10.8 R ➡️ +19.6 R
CD 45 (Tran): +2 R ➡️ +2.4 D
CD 46 (Correa): +19.2 D ➡️ +15 D
CD 47 (Min): +0.6 R ➡️ +5.2 D
CD 49 (Levin): +0.8 D ➡️ +4.2 D
Robert Garcia's district (42) moves to OC:
CD 42 (Garcia): +33.4 D ➡️ +6.8 D
CD 40 (Kim): +10.8 R ➡️ +19.6 R
CD 45 (Tran): +2 R ➡️ +2.4 D
CD 46 (Correa): +19.2 D ➡️ +15 D
CD 47 (Min): +0.6 R ➡️ +5.2 D
CD 49 (Levin): +0.8 D ➡️ +4.2 D
Robert Garcia's district (42) moves to OC:
CD 42 (Garcia): +33.4 D ➡️ +6.8 D
In a paper posted today, led by #UCIrvine PhD student Cannon Vogel, we showed that the newly-allowed large cosmological lepton numbers at early times open up a new regime of sterile neutrino dark matter production.
Full paper ➡️ arxiv.org/abs/2507.18752
#particlephysics #cosmology #astrophysics 🔭 ⚛️
Full paper ➡️ arxiv.org/abs/2507.18752
#particlephysics #cosmology #astrophysics 🔭 ⚛️
July 28, 2025 at 4:54 PM
In a paper posted today, led by #UCIrvine PhD student Cannon Vogel, we showed that the newly-allowed large cosmological lepton numbers at early times open up a new regime of sterile neutrino dark matter production.
Full paper ➡️ arxiv.org/abs/2507.18752
#particlephysics #cosmology #astrophysics 🔭 ⚛️
Full paper ➡️ arxiv.org/abs/2507.18752
#particlephysics #cosmology #astrophysics 🔭 ⚛️
Statement from DOE & NSF
July 11, 2025 at 9:14 PM
Statement from DOE & NSF
Proud to share that the University of California systemwide Academic Senate has officially passed a resolution opposing Trellix surveillance software that is being mandated on faculty computers.
👉 senate.universityofcalifornia.edu/_files/repor...
#AcademicFreedom #UniversityOfCalifornia #UCIrvine
👉 senate.universityofcalifornia.edu/_files/repor...
#AcademicFreedom #UniversityOfCalifornia #UCIrvine
July 5, 2025 at 8:15 PM
Proud to share that the University of California systemwide Academic Senate has officially passed a resolution opposing Trellix surveillance software that is being mandated on faculty computers.
👉 senate.universityofcalifornia.edu/_files/repor...
#AcademicFreedom #UniversityOfCalifornia #UCIrvine
👉 senate.universityofcalifornia.edu/_files/repor...
#AcademicFreedom #UniversityOfCalifornia #UCIrvine
UC Irvine and SoCalGas propose blending hydrogen into natural gas lines—but hydrogen will never replace natural gas as a heating fuel. Why? It’s over 3x less efficient than electric heat pumps and poses serious safety risks.
👉 open.substack.com/pub/drkev/p/...
#ClimateAction #UCIrvine #CleanEnergy
👉 open.substack.com/pub/drkev/p/...
#ClimateAction #UCIrvine #CleanEnergy
July 2, 2025 at 1:12 AM
UC Irvine and SoCalGas propose blending hydrogen into natural gas lines—but hydrogen will never replace natural gas as a heating fuel. Why? It’s over 3x less efficient than electric heat pumps and poses serious safety risks.
👉 open.substack.com/pub/drkev/p/...
#ClimateAction #UCIrvine #CleanEnergy
👉 open.substack.com/pub/drkev/p/...
#ClimateAction #UCIrvine #CleanEnergy
My comments to the California Public Utilities Commission (CPUC) in-person public forum today on the proposed hydrogen & natural gas blending project at #UCIrvine
#stopfossilfuels #climatechange #climatecrisis
#stopfossilfuels #climatechange #climatecrisis
July 1, 2025 at 8:20 PM
My comments to the California Public Utilities Commission (CPUC) in-person public forum today on the proposed hydrogen & natural gas blending project at #UCIrvine
#stopfossilfuels #climatechange #climatecrisis
#stopfossilfuels #climatechange #climatecrisis
You have my support, Senator Padilla @padilla.senate.gov
June 12, 2025 at 10:47 PM
You have my support, Senator Padilla @padilla.senate.gov
“We are at a time where we are at the height & at the most vulnerable for science. We have to be our own best protagonists. Make sure we are engaged.” — Sudip Parikh, CEO & Executive Publisher, Science Journals, at today’s induction ceremony for @aaas.org Fellows ⚛️ 🧪
www.aaas.org/resources/sp...
www.aaas.org/resources/sp...
June 7, 2025 at 4:30 PM
“We are at a time where we are at the height & at the most vulnerable for science. We have to be our own best protagonists. Make sure we are engaged.” — Sudip Parikh, CEO & Executive Publisher, Science Journals, at today’s induction ceremony for @aaas.org Fellows ⚛️ 🧪
www.aaas.org/resources/sp...
www.aaas.org/resources/sp...
Dave Min went from fellow parent of a preschooler—and fellow Professor at #UCIrvine —to a Member of Congress. He’s doing an outstanding job—defending our democracy, standing up for #Armenians in their ancestral homeland, and supporting America’s leadership in science. ⚛️ 🧪
June 7, 2025 at 1:09 AM
Dave Min went from fellow parent of a preschooler—and fellow Professor at #UCIrvine —to a Member of Congress. He’s doing an outstanding job—defending our democracy, standing up for #Armenians in their ancestral homeland, and supporting America’s leadership in science. ⚛️ 🧪
Nobel Prize Laureate Kip Thorne speaking yesterday at the Albert Einstein Institute in Postdam, Germany:
"Donald Trump is destroying America's capacity for [leading science]. We are counting on Europe to take over here and elsewhere." ⚛️ 🧪
"Donald Trump is destroying America's capacity for [leading science]. We are counting on Europe to take over here and elsewhere." ⚛️ 🧪
June 4, 2025 at 9:03 PM
Nobel Prize Laureate Kip Thorne speaking yesterday at the Albert Einstein Institute in Postdam, Germany:
"Donald Trump is destroying America's capacity for [leading science]. We are counting on Europe to take over here and elsewhere." ⚛️ 🧪
"Donald Trump is destroying America's capacity for [leading science]. We are counting on Europe to take over here and elsewhere." ⚛️ 🧪
Rep. Dave Min gives a sobering assessment of the federal government’s support for science and education, tonight at a town hall at #UCIrvine ⚛️ 🧪
UCI leadership reported that over $40m in grants have been cancelled & a massive slowdown in new awards at 40% of that previously @daveminca.bsky.social
UCI leadership reported that over $40m in grants have been cancelled & a massive slowdown in new awards at 40% of that previously @daveminca.bsky.social
May 30, 2025 at 2:37 AM
Rep. Dave Min gives a sobering assessment of the federal government’s support for science and education, tonight at a town hall at #UCIrvine ⚛️ 🧪
UCI leadership reported that over $40m in grants have been cancelled & a massive slowdown in new awards at 40% of that previously @daveminca.bsky.social
UCI leadership reported that over $40m in grants have been cancelled & a massive slowdown in new awards at 40% of that previously @daveminca.bsky.social
A view of the Astronomy Tower of the Sorbonne (Tour d’Astronomie de la Sorbonne) with Notre Dame in the background.
The observatory was built between 1885 and 1901, atop the Sorbonne & remains in use today for public observations and educational purposes.
#astronomy
The observatory was built between 1885 and 1901, atop the Sorbonne & remains in use today for public observations and educational purposes.
#astronomy
May 13, 2025 at 4:03 PM
A view of the Astronomy Tower of the Sorbonne (Tour d’Astronomie de la Sorbonne) with Notre Dame in the background.
The observatory was built between 1885 and 1901, atop the Sorbonne & remains in use today for public observations and educational purposes.
#astronomy
The observatory was built between 1885 and 1901, atop the Sorbonne & remains in use today for public observations and educational purposes.
#astronomy
Great spot for an international program on dark matter and neutrinos
(I got there early. The hall was filled later! 😅)
indico.math.cnrs.fr/event/12305/...
#physics #neutrinos #darkmatter #particlephysics #cosmology
(I got there early. The hall was filled later! 😅)
indico.math.cnrs.fr/event/12305/...
#physics #neutrinos #darkmatter #particlephysics #cosmology
May 12, 2025 at 1:19 PM
Great spot for an international program on dark matter and neutrinos
(I got there early. The hall was filled later! 😅)
indico.math.cnrs.fr/event/12305/...
#physics #neutrinos #darkmatter #particlephysics #cosmology
(I got there early. The hall was filled later! 😅)
indico.math.cnrs.fr/event/12305/...
#physics #neutrinos #darkmatter #particlephysics #cosmology
Today, I got to give one if my favorite lectures in quantum mechanics in my advanced undergraduate physics majors’ course.
This is where physics touches metaphysics — fun stuff!
#physics #quantumphysics #quantumfieldtheory
This is where physics touches metaphysics — fun stuff!
#physics #quantumphysics #quantumfieldtheory
April 30, 2025 at 3:25 AM
Today, I got to give one if my favorite lectures in quantum mechanics in my advanced undergraduate physics majors’ course.
This is where physics touches metaphysics — fun stuff!
#physics #quantumphysics #quantumfieldtheory
This is where physics touches metaphysics — fun stuff!
#physics #quantumphysics #quantumfieldtheory
April 29, 2025 at 5:56 PM
@ucberkeleyofficial.bsky.social bends a knee to what is determined by the facts to be a genocidal state, #Azerbaijan
April 29, 2025 at 2:07 AM
@ucberkeleyofficial.bsky.social bends a knee to what is determined by the facts to be a genocidal state, #Azerbaijan
A powerful letter against UC Berkeley's unconscionable cancellation of the film My Sweet Land —which documents the #ArtsakhGenocide from the perspective of a boy—was sent by Assemblymembers Harabedian, Caloza, Schultz & Tangipa, as well as State Sen. Sasha Renée Pérez.
#ArmenianGenocide
#ArmenianGenocide
April 29, 2025 at 1:29 AM
A powerful letter against UC Berkeley's unconscionable cancellation of the film My Sweet Land —which documents the #ArtsakhGenocide from the perspective of a boy—was sent by Assemblymembers Harabedian, Caloza, Schultz & Tangipa, as well as State Sen. Sasha Renée Pérez.
#ArmenianGenocide
#ArmenianGenocide