News » Archives » 2014

"Improving planet-finding spectrometers"


The concept for a diffraction-limited Doppler spectrometer was recently published in Science magazine's November 14, 2014 issue. 

"Adaptive optics (AO) systems correct for optical wavefront errors introduced by Earth's turbulent atmosphere, turning initially blurry images into intense diffraction-limited concentrations of light..."

Read the full article at

Read More

Justin Crepp presents "Earth-like Worlds Orbiting other Suns"

Earth Like Worlds

Notre Dame physics professor Justin Crepp discusses expolanets and how to find them. There are 100 billion stars in the Milky Way galaxy. Do these stars have orbiting planets? If so, are they similar to the Earth? Do they have life? In this talk, Prof. Crepp will address these questions by explaining how astrophysicists detect and study planets located outside the solar system.…

Read More

Notre Dame celebrates 150 years of science


The University of Notre Dame’s College of Science will celebrate 150 years of science at Notre Dame beginning this month through September 2015. The college will host numerous events throughout the year in collaboration with the local community and national sponsors.

The Center for History will offer a year-long exhibit, “From Astrophysics to Zebrafish: 150 Years of Science at Notre Dame.” Focusing on Notre Dame’s history of scientific research and education, the exhibit includes artifacts of early scientific lab equipment, fossils and photographs of legendary Notre Dame scientists and their discoveries. The exhibit is open to the public through Aug. 2, 2015. Admission is charged.

Read More

Fighting to explore our universe


The work of Notre Dame astrophysicist Justin Crepp could lead to the discovery of worlds similar to our own and revolutionize our understanding of the universe. For centuries, humankind has looked to the night sky in awe and wondered, “Are we alone?” The research of Justin Crepp, the Freimann Assistant Professor of Physics, may be able to answer just that. Prof. Crepp, a recipient of the NASA Early Career Fellowship and member of NASA’s

Read More

Crepp joins NASA’s TESS science team

tessImage credit: NASA

NASA has named University of Notre Dame astrophysicist Justin Crepp as a member of the Transiting Exoplanet Survey Satellite (TESS) science team. A space mission coordinated through MIT, Harvard, and NASA’s Goddard Space Flight Center, TESS will discover thousands of exoplanets in orbit around the brightest stars in the sky.

Crepp, The Freimann Assistant Professor of Physics, was selected to be on the science team based on his team’s expertise with adaptive optics and their ability to use the Large Binocular Telescope, the world’s premier diffraction-limited facility, to acquire follow up observations for intriguing planetary signals that TESS will detect.

Read More

Large Binocular Telescope committee selects Crepp’s iLocater to be built


The group that oversees the Large Binocular Telescope (LBT) has selected the team led by Justin Crepp, the Freimann Assistant Professor of Physics at the University of Notre Dame, to build a new astronomical spectrometer named “iLocater” for its next-generation of instruments. The instrument was selected from among new hardware concepts proposed by the LBT observatory's domestic and international partners.

Read More

NASA awards career fellowship to Notre Dame astrophysicist


NASA has awarded Justin R. Crepp, the Freimann Assistant Professor of Physics at the University of Notre Dame, with an Early Career Fellowship. He is the only awardee in the nation to receive the fellowship in the Origins of Solar Systems program. Crepp’s project, “Working at the Diffraction Limit: New Exoplanetary Science in the Era of ‘Extreme’ Adaptive Optics,” was selected through a competitive proposal process, followed by peer review in a second round of evaluation.

Read More

Physicists confirm first planet discovered in a quadruple star system

The first extrasolar planet in a quadruple star system has been discovered

Justin Crepp, Freimann Assistant Professor of physics at the University of Notre Dame, provided the high-contrast imaging observations that confirmed the first extrasolar planet discovered in a quadruple star system. He is a co-author on a paper about the discovery, “Planet Hunters: A Transiting Circumbinary Planet in a Quadruple Star System,” recently posted to the open-access, and submitted for publication to The Astrophysical Journal.

Crepp’s images revealed that the system involved two sets of binary stars. The planet was first noticed by volunteer citizen scientists studying publicly available Kepler data as part of the Planet Hunters citizen science project.

Read More

Earth-size planet discovered

Earth-size Planet Discovered

"There's a new discovery that has plenty of space buffs chatting. NASA has found an Earth-size planet that is about 500 light years away from us. This morning we have Notre Dame Professor and Scientist Justin Crepp - a member of the team that made the discovery."…

Read More

Astronomers discover Earth-sized planet in habitable zone


University of Notre Dame astrophysicist Justin R. Crepp and researchers from NASA working with the Kepler space mission have detected an Earth-like planet orbiting the habitable zone of a cool star. The planet, which was found using the Kepler Space Telescope, has been identified as Kepler-186f and is 1.11 times the radius of the Earth. Their research, titled “An Earth-sized Planet in the Habitable Zone of a Cool Star,” will be published in the journal Science

Read More

Rare brown dwarf discovery provides benchmark for future exoplanet research

Direct image detection of a rare brown dwarf companion taken at Keck Observatory (Crepp et al. 2014, ApJ)

A team of researchers led by Justin R. Crepp, the Freimann Assistant Professor of Physics at the University of Notre Dame, has directly imaged a very rare type of brown dwarf that can serve as a benchmark for studying objects with masses that lie between stars and planets. The team’s paper on the discovery, “The TRENDS High-Contrast Imaging Survey. V. Discovery of an Old and Cold Benchmark T-dwarf Orbiting the Nearby G-star HD 19467,” was recently published in The Astrophysical Journal.

Read More