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    Scattering Probes of Material Structure

    BYU physics researchers use some of the world's brightest x-ray and neutron sources to study the atomic structure and dynamics of advanced materials like superconductors and piezoelectrics. At the Advanced Photon Source at Argonne National Laboratory, electrons travel around a one-kilometer synchrotron ring at nearly the speed of light, emitting high-energy tangential Bremsstrahlung x-rays that are collimated into beams and scattered from material samples.

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    Ready for Another Night

    University Photographer, Mark Philbrick, captured this sunset image of the BYU West Mountain Observatory in early June 2016. At the same time, Physics and Astronomy students were at work preparing the telescopes for yet another night of research observations. Data are secured on these nights for a wide variety of projects ranging from careful searches for exoplanets to monitoring active galaxies. The resulting data support research efforts of BYU students and faculty and in many cases contribute to publications by large international collaborations.

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    Predictions on candidate superalloys

    Superalloys are high-performance materials that are essential to key transportation and power generation technologies. By using BYU's supercomputer as a virtual lab, together with state-of-the-art algorithms for modeling materials, the Materials Simulation Group (msg.byu.edu) has identified 75 new superalloy candidates for which there are no reported phase diagrams. The new candidates may be the key to enhanced performance in transportation and power generation components. The figure shows the computed formation enthalpy over more than 700 Ni-based systems that were explored as part of this large survey. Roughly speaking, the darker the circle, the more promising the system. The x-y coordinates in the grid denote the two minority elements that are combined with nickel.

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    Orion at West Mountain

    This picture shows the familiar winter constellation of Orion setting in the west as it moves behind the main dome at the BYU West Mountain Observatory. The constellation of Orion is known as a location with giant molecular clouds and current star forming regions. Even in this short exposure, the Orion nebula is clearly visible in the sword of Orion. This picture was taken by Professor Michael Joner while working at the observatory on a clear spring night.

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    Modulated Crystal Structures

    Wave-like modulations with non-lattice periodicities accompany a variety of important physical phenomena (e.g. magnetism and superconductivity) and dramatically complicate any quantitative crystal-structure analysis. An exhaustive group-theoretical enumeration of the order parameters that can arise from 1D incommensurate modulations now make it much easier to characterize crystals that behave this way. Figure: Short-range modulation in La1.8Sr2.2Mn2O7.

Calendar

20 Oct, Today

Sunset
6:40 PM

21 Oct, Saturday

Sunrise
7:44 AM

25 Oct, Wednesday

Colloquium: Brad Agle
4:00 PM

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Recently Published Research

Mary Dumont, Clement Gaillard, Kyle Matt, Denise Stephens, and Mike Joner et al. recently published an article titled "A giant planet undergoing extreme-ultraviolet irradiation by its hot massive-star host" in Nature. Click on the image above to read it.

Astronomy Picture of the Day

A Beautiful Trifid: The beautiful Trifid Nebula is a cosmic study in contrasts. Also known as M20, it lies about 5,000 light-years away toward the nebula rich constellation Sagittarius....

This photograph and Description come from NASA's Astronomy Picture of the Day web site.

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