EVENTS

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Masters Presentation: Was Entropy Conserved Between BBN and Recombination?

Phillips 258

We test the assumption of entropy conservation between Big Bang nucleosynthesis (BBN) and recombination by considering a massive particle that decays into a mixture of photons and other relativistic species. We employ Planck temperature and polarization anisotropies, COBE/FIRAS spectral distortion … Read more

Colloquium

Phillips 265 120 East Cameron Avenue, Chapel Hill, NC

Robert Griffin, MIT Dynamic nuclear polarization (DNP) has become an invaluable tool to enhance sensitivity of magic angle spinning (MAS) NMR, enabling the study of biomolecules and materials which are otherwise intractable. In this presentation we explore some new aspects … Read more

Astronomy on Tap Triangle

Fullsteam Brewery 726 Rigsbee Avenue, Durham, NC, United States

Come check out Astronomy on Tap Triangle's short and engaging talks about astronomy over beer. Find us in the taproom of Fullsteam Brewery in Durham, NC from 7-9 PM on Wednesday, October 5th! Have you ever looked up at the night … Read more

Colloquium- Stellar Rotation in Young Clusters using K2 and TESS

K2 provided a phenomenal opportunity to study properties of stars in clusters, particularly young low-mass stars, far beyond the expectations of the original Kepler mission. The high-precision photometry provided by K2 allows us to probe stellar variability to lower masses and lower amplitudes than has ever been done before. Younger stars are generally more rapidly rotating and have larger star spots than older stars of similar masses, so spots rotating into and out of view reveal the (surface) rotation rate of these stars. K2 has monitored stars from several clusters, most notably Rho Oph (~1 Myr), Taurus (~5 Myr), USco (~20 Myr), the Pleiades (~125 Myr), and Praesepe (~700 Myr). The light curves have yielded thousands of rotation rates, and revealed far greater diversity in light curves than was anticipated. Now that we have TESS data as well, we can add stars from many more clusters, including the Upper Centaurus-Lupus (UCL) and Lower Centaurus-Crux (LCC) young moving groups (~15 Myr). In this talk, I will review my K2 results including new TESS results from UCL/LCC.

PARE Talk

Kouray Oral Health Science Building

Each year, the Postdoctoral Awards for Research Excellence (PARE) are given in recognition of the research promise demonstrated by individual postdoctoral scholars. The awards are open to postdoctoral scholars in all disciplines and are designed to assist postdoctoral scholars in their continued … Read more

Three Minute Thesis

Bondurant G100

The Graduate School is excited to announce that graduate student Mackenna Wood from the Department of Physics and Astronomy has advanced to our top 10 in the Three Minute Thesis (3MT) Final Competition scheduled for Tuesday, Oct. 11 at 4 p.m. in Bondurant … Read more

Seminar- Perspectives on the 2022 Nobel Physics Prize

Phillips 247

Prof. Jon Engel Perspectives on the 2022 Nobel Physics Prize Friday, October 14th, 2:30-3:30 pm, Phillips Hall 247. Coffee and cookies will be served in Phillips 269, 2:00-2:30 pm.