Three students awarded DOE Graduate Student Research Fellowships

Three students have received the prestigious U.S. Department of Energy Office of Science Graduate Student Research Fellowships to conduct their research at Fermilab. DOE awarded these fellowships to 44 students from U.S. universities. The Fermilab recipients:

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If you’ve walked around the U.S. Department of Energy’s Fermi National Accelerator Laboratory site recently, your interest might have been piqued by a sprawling new addition next to the lab’s iconic, 16-story Wilson Hall: That shiny glass façade is the hallmark of the new Integrated Engineering Research Center, one of the cornerstones of Fermilab’s sustainability push across the lab.

Once fully built, the IERC will be the largest purpose-built laboratory and office building at Fermilab since Wilson Hall was completed in 1974. At 80,000 square feet, the IERC has been in the making for nearly 10 years now. Construction will be completed soon.

The IERC was conceived out of Fermilab’s campus master plan, which has a set of guiding principles: Sustainability and stewardship are two of them. Andrew J. Federowicz, senior architect at Fermilab, contributes to the lab’s Sustainability Management Team as the sustainable buildings goal owner for the lab.

Federowicz explained that the concept behind the IERC building was to relocate engineers and technicians from scattered facilities spread out across the site to a new, state-of-the-art facility located in the core campus with direct access to Wilson Hall and scientists.

Part of Federowicz’s role is to oversee the lab’s progress toward meeting federal sustainable requirements and goals for new construction. This means getting involved with projects like the IERC early on in the design phase to help establish sustainable goals and help track progress toward those goals throughout construction and project completion.

The federal government has developed a robust series of checklists for assessing compliance in new construction and existing buildings. “My job is to monitor and make sure that we’re tracking the metrics toward achieving these guiding principles,” said Federowicz.

The IERC will build Fermilab’s momentum toward its green goals.

The benchmarks in place have a twofold purpose: to use building systems and design to counter climate change and to increase climate resiliency of the built environment as weather events become more severe or unpredictable.

There are many ways Fermilab is working to accomplish these goals, including the use of practical building designs. For example, the landscape plan for the new building exclusively utilizes native plants, according to Federowicz. Using them means the facility does not need an irrigation system and is simultaneously more drought-resistant.

The IERC also employs a host of different passive strategies in its green quest. Overhangs built into the façade block out direct sunlight that would heat up the building’s interior; in turn, this helps reduce cooling costs. Horizontal light shelves built into the walls reflect daylight into deep spaces of the open office. Large clerestory windows, which are placed high above in a room, also help natural light penetrate farther into those interior spaces. These built-in design elements reduce the need for artificial light or heating, helping ensure the lab can be less energy-intensive.

The IERC is home to an extensive green roof at around 20,000 square feet. While it looks aesthetically pleasing from the lofty views of Wilson Hall, the green roof also allows the building to blend in with the surrounding landscape, manage rainwater flow and control the distribution of water going into the storm water sewer.

The IERC will build Fermilab’s momentum toward its green goals. “I think the completion of IERC will raise the bar further for sustainable stewardship at Fermilab,” Federowicz said.

Fermi National Accelerator Laboratory is supported by the Office of Science of the U.S. Department of Energy. The Office of Science is the single largest supporter of basic research in the physical sciences in the United States and is working to address some of the most pressing challenges of our time. For more information, please visit science.energy.gov.

From high atop a mountain in the Chilean Andes, the Dark Energy Camera has snapped more than one million exposures of the southern sky. The images have captured around 2.5 billion astronomical objects, including galaxies and galaxy clusters, stars, comets, asteroids, dwarf planets and supernovae.

Now 10 years since the Dark Energy Camera first saw stars, the impressive 570-megapixel camera was originally built at the U.S. Department of Energy’s Fermi National Accelerator Laboratory for the Dark Energy Survey. The international DES collaboration uses the deep-space data to investigate dark energy, a phenomenon that is accelerating the expansion of space.

The Dark Energy Survey, whose scientists are now analyzing the data collected from 2013-2019, isn’t the only experiment to benefit from the powerful piece of equipment. Other research groups have also used the camera to conduct additional astronomical observations and surveys. Here are some of the many stellar photos created using the Dark Energy Camera.

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The Southern Pinwheel Galaxy (also known as Messier 83 or NGC 5236) is about 15 million lightyears from Earth. It took DECam more than 11 hours of exposure time to capture this image. The camera is mounted on the Víctor M. Blanco 4-meter Telescope at Cerro Tololo Inter-American Observatory, a program of NSF’s NOIRLab.

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The Dark Energy Survey imaged one-eighth of the sky, capturing light from galaxies up to 8 billion lightyears away. The survey repeatedly imaged 10 “deep fields” like the one shown here. By returning to certain sections of the sky, scientists are able to build up and collect different wavelengths of light to image incredibly distant galaxies and faint objects. These deep fields can be used to calibrate the rest of the DES data and to hunt for supernovae.

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While the Dark Energy Survey typically looks at objects millions or billions of lightyears away, sometimes closer objects come into view. In 2014, the Dark Energy Survey spotted Comet Lovejoy traveling about 51 million miles from Earth. Each rectangle in the image represents one of the 62 CCDs that DECam uses, each one a sophisticated sensor designed to capture light from distant galaxies.

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The spiral galaxy NGC 1566, sometimes called the Spanish Dancer, is about 69 million lightyears from Earth. Each photo from DECam is the result of choices made during image processing. The camera uses five filters that each record a different wavelength of light (between 400 and 1,080 nanometers) and can be combined to make color images.

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This DECam photo, taken looking toward the center of our Milky Way galaxy, covers an area roughly twice as wide as the full moon and contains more than 180,000 stars. You can also see a wider version encompassing more of the Milky Way’s bulge. While beautiful, the stars and dust of the Milky Way block out distant galaxies needed to study dark energy — so the Dark Energy Survey typically aims the telescope in the opposite direction, away from the plane of our galaxy.

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From our position on Earth, we see the spiral galaxy NGC 681 from the side (or edge-on). The galaxy, also known as the Little Sombrero Galaxy, is about 66.5 million lightyears away. To keep images of distant objects as sharp as possible, DECam uses a mechanism called a Hexapod, which uses six pneumatically driven pistons to align the camera’s many optical elements between exposures. In addition to the five light filters, DECam also has five optical lenses, the biggest of which is more than 3 feet wide and weighs 388 pounds.

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This image shows a wide-angle view of the Small Magellanic Cloud. The Large and Small Magellanic Clouds are dwarf satellite galaxies to the Milky Way, and their proximity makes them a valuable place to study star formation. The Dark Energy Camera captured deep looks at our galactic neighbors for the Survey of the Magellanic Stellar History, or SMASH.

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The large galaxy at the center of this image is NGC 1515, a spiral galaxy with several neighboring galaxies in the Dorado Group. When looking at the large-scale structure of the universe, astronomers find galaxies are not distributed randomly but instead cluster together, forming a sort of cosmic web. The Dark Energy Survey has made some of the most-precise maps of the universe’s structure and its evolution over time.

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NGC 288 is a globular cluster of stars located about 28,700 lightyears from Earth. These stars are bound together by gravity and are concentrated toward the center of the sphere. Globular clusters are an interesting way to study how stars and our own Milky Way evolved, though the Dark Energy Survey looks at distant galaxies and galaxy clusters to better understand dark energy.

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This Dark Energy Camera image shows light from Centaurus A, a galaxy more than 12 million lightyears away. It is partially obscured by dark bands of dust caused by the collision of two galaxies.

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The Dark Energy Survey has found several new dwarf galaxies and used the data to limit how big potential dark matter particles could be. This irregular dwarf galaxy, IC 1613, is about 2.4 million lightyears away and contains around 100 million stars. Dwarf galaxies are considered small and faint by astronomical standards; for comparison, our Milky Way galaxy is estimated to contain between 100 and 400 billion stars.

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The Helix Nebula (NGC 7293) is a planetary nebula about 650 lightyears from Earth. It is shown here extending over several of the Dark Energy Camera’s CCDs. Planetary nebulae, so named because they appeared round and sharp-edged like planets, are actually the remains of stars. Here, a dying star has ejected its outer layers, leaving a small white dwarf surrounded by gas. In billions of years, our own sun will experience a similar fate.

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The spiral Sculptor Galaxy is about 11 million lightyears away. It’s one of more than 500 million galaxies imaged by the Dark Energy Survey across 5000 square degrees of sky. To optimize observations, DES used automated software to point the camera and capture exposures. The software could factor in what part of the sky was overhead, weather conditions, moonlight and which areas had been recently imaged.

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The wispy shells around elliptical galaxy NGC 474 (center) are actually hundreds of millions of stars. To the left is a spiral galaxy, and in the background, there are thousands of other, more distant galaxies — visible in this zoomable version. DECam images contain vast amounts of information; each one is about a gigabyte in size. The Dark Energy Survey would take a few hundred images per session, producing up to 2.5 terabytes of data in a single night.

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The Dark Energy Camera captured the barred spiral galaxy NGC 1365 in its very first photographs in 2012. The galaxy sits in the Fornax cluster, about 60 million lightyears from Earth. This close-up comes from the camera’s much wider field of view, which you can explore in the interactive DECam viewer.

Fermilab is supported by the Office of Science of the U.S. Department of Energy. The Office of Science is the single largest supporter of basic research in the physical sciences in the United States and is working to address some of the most pressing challenges of our time. For more information, please visit science.energy.gov.