News by Topic: Multimessenger Astronomy

Several School of Physics and Astronomy faculty secured large grants as principal investigators during a banner summer.

While the scientific community grapples with the loss of the Arecibo radio telescope, astronomers who recently revived a long-dormant radio telescope array in Argentina hope it can help modestly compensate for the work Arecibo did in pulsar timing.

RIT will celebrate graduate research during the 13th annual Graduate Education Week and Showcase: A Vision into the Future. The virtual event—Nov. 16 to 20—creates a platform for sharing and exchanging ideas during the COVID-19 pandemic, with pre-recorded and live presentations, demonstrations, visual exhibitions, and an alumni panel discussion.

Scientists have developed new simulations of black holes with widely varying masses merging that could help power the next generation of gravitational wave detectors. RIT Professor Carlos Lousto and Research Associate James Healy from RIT’s School of Mathematical Sciences outline these record-breaking simulations in a new Physical Review Letters paper.

The LIGO Scientific Collaboration and Virgo Collaboration released a catalog of results from the first half of its third observing run (O3a), and scientists have detected more than three times as many gravitational waves than the first two runs combined. Several researchers from RIT’s Center for Computational Relativity and Gravitation were heavily involved in analyzing the gravitational waves and understanding their significance.

The LIGO Scientific Collaboration and the Virgo Collaboration recently announced the discovery of GW190521, the most massive gravitational wave binary observed to date, and Rochester Institute of Technology scientists played an important role in identifying and analyzing the event.

The National Science Foundation recently awarded researchers at RIT, the University of Illinois at Urbana-Champaign, Louisiana State University, Georgia Tech and West Virginia University grants totaling more than $2.3 million to support further development of the Einstein Toolkit, a community-developed code for simulating the collisions of black holes and neutron stars, as well as supernovas and cosmology.

A team from RIT and the Instituto Argentino de Radioastronomía (IAR) upgraded two radio telescopes in Argentina that lay dormant for 15 years in order to study pulsars, rapidly rotating neutron stars with intense magnetic fields that emit notably in radio wavelengths. The project is outlined in a new paper published in Astronomy and Astrophysics.

Scientists have reported detecting gravitational waves from 10 black hole mergers to date, but they are still trying to explain the origins of those mergers. The largest merger detected so far seems to have defied previous models because it has a higher spin and mass than the range thought possible. A group of researchers, including RIT Assistant Professor Richard O’Shaughnessy, has created simulations that could explain how the merger happened.

Scientists conducting cutting-edge research in computational astrophysics will converge at RIT for two workshops in June. Experts from RIT, NASA Goddard Space Flight Center, Berkeley and other prestigious institutions will speak at the events hosted by RIT’s Center for Computational Relativity and Gravitation.

The Nobel Prize-winning project that hunts for gravitational waves— ripples in space and time—is about to begin the longest and most sensitive observational run to date. And several RIT researchers are preparing to pore over the new data to help uncover some of the universe’s biggest mysteries.