University of Minnesota
School of Physics & Astronomy
Home > About > News >

Spotlight

Page: 1  2  3  4  5  6  7  8  9  10 
Eta Car

Eta Car: The Great Imposter

Two University astronomers, Kris Davidson and Roberta Humphreys have discovered that a massive binary star system, Eta Car is returning to its original state: that of a hot star easily visible in the sky of the Southern Hemisphere. Davidson and Humphreys have observed Eta Car since the Hubble Space Telescope first came online in 1990. This series of observations has given them solid evidence that Eta Car-- sometimes called the poster child for very massive stars, because it is the most massive star that is close enough to Earth to be easily observed—is experiencing dramatic changes. More »

Liliya Williams

Where is Dark Matter?

Liliya Williams is a Professor of Astrophysics working on the distribution of dark matter throughout the Universe. Using luminous matter such as stars and gas, Williams can trace dark matter and find patterns in the distribution. More »

Prestegard Update 2015.jpg

Searching for Gravitational Waves

Tanner Prestegard is part of the search for gravitational waves with Vuk Mandic. He is a graduate student working on the Laser Infermeter Gravitational Observatory (LIGO) experiment. Prestegard’s role is primarily in data analysis-- looking through data and trying to pick out anything that is an actual gravitational wave. More »

Andy Julin

Mysterious Charm

Andy Julin is a fourth year graduate student in experimental particle physics. He is part of the BESIII collaboration working under Professor Ron Poling and Dan Cronin-Hennessy. BESIII is an electron-positron detector located in Beijing, China which analyzes charm physics. Charm physics is the name given to the study of the charm or c quark, a subatomic particle that makes up other subatomic particles such as mesons and hadrons. More »

Marianna Gabrielyan

In Control

Marianna Gabrielyan is a postdoctoral researcher in the NOVA collaboration. Though she came on board the experiment to do data analysis, she has found herself responsible for quite a bit of the hardware on the NOVA project. Gabrielyan recently setup a control room in the Physics and Nanotechnology Building. This control room will eventually allow researchers at the U in the Twin Cities to take shifts monitoring both Near and Far detectors, a function that is presently done at Fermilab, outside of Chicago. More »

Kalafut,Sean_TA Award_2014 Update 2015.jpg

Particle Reconstruction at High Pile-up

Sean Kalafut is a graduate student working on the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) at CERN under the direction of Professor Roger Rusack. Kalafut’s research focuses on particle reconstruction in high pile-up. Kalafut uses a physical analogy to describe high pile-up. “Imagine two people are each standing four feet in front of you, and the distance between the two people is four feet. Each person is holding a camera with a flash, and each person takes a photo of you with the flash turned on. More »

Costanzi Update 2015.jpg

Building the right sandwich: novel magnetic tunnel junctions

Barry Costanzi is a graduate student in Professor Dan Dahlberg’s Magnetic Microscopy and Transport group. Costanzi’s research involves a novel method of creating magnetic tunnel junctions by using Electron Beam Induced Deposition (EBID). His work is in collaboration with the Royal Institute of Technology in Stockholm, and requires him to travel to Sweden every couple of months. More »

Marco Peloso

Signatures of Inflation

Marco Peloso is a theorist working in the area of cosmology (the study of the early Universe). His research focuses on models of inflation, which is a period of accelerated expansion that took place very early in the life of the Universe. Observational cosmologists look for the signatures of inflation in the forms of gravitational waves and of density perturbations, which can be seen as small ripples in the Cosmic Microwave Background (CMB) data. More »

BurnellLooseCrop Update 2015.jpg

Exotic Phases of Matter

Fiona Burnell is a condensed matter theorist who studies exotic phases of matter. These are materials which do not display long-ranged order at low temperatures (which is typical of low-temperature behaviour in many materials, such as magnets), but are also not ordinary metals. One of the most bizarre examples of an exotic phase is a fractionalized system, where there appear to be particles that carry a fraction of the charge of the electron. “This seems very surprising because we know that you can’t subdivide an electron,” Burnell explains. More »

Tony Gherghetta

Going Beyond the Standard Model

Tony Gherghetta is a theoretical particle physicist whose research focuses on extensions of the Standard Model of particle physics. The Standard Model describes the nature and interactions of the elementary building blocks of the Universe. More »


Spotlight RSS Feed