Boston Globe reporter Martin Finucane spotlights how MIT Haystack Observatory researchers played a “major role in the effort to create the first-ever picture of a black hole.” “I’m very proud,” says Vincent Fish, a research scientist at Haystack. “I’ve spent most of my professional life on this and I’m just really glad we got such great results out of this.”
Prof. Nergis Mavalvala speaks with Ira Flatow of Science Friday about how she and her colleagues are working on a new technology called squeezed light, which could enable LIGO to see even more of the cosmos. Mavalvala explains that squeezed light is “a somewhat exotic quantum state of light that we engineer in our labs to improve the sensitivity of LIGO.”
Postdoctoral fellow Dheeraj Pasham speaks with Ira Flatow of Science Friday about his research calculating that a supermassive black hole 300 million light years from Earth is spinning at half the speed of light. Pasham explains that a black hole's spin rate provides information about the “channel through which it grew, all the way from a couple of years after the Big Bang until now.”
Space.com reporter Mike Wall writes that researchers have calculated a supermassive black hole’s rotation rate by analyzing the X-rays it emitted after consuming a nearby star. The researchers found that “the huge black hole, known as ASASSN-14li, is spinning at least 50 percent the speed of light.”
Gizmodo reporter Ryan Mandelbaum writes that researchers determined how fast a supermassive black hole spins by measuring a star being swallowed by the black hole. Postdoctoral fellow Dheeraj Pasham explains that, “this measurement is different in the sense that we were able to measure the spin of a black hole that was dormant.”
Astronomers from MIT have detected echoes in X-ray flares emitted by a black hole consuming stellar material, writes Charles Q. Choi for Space.com. The findings “might shed light on how matter behaves not just as it falls into stellar-mass black holes,” writes Choi, “but also supermassive black holes millions to billions of times the mass of the sun.”
BBC News reporter Jonathan Amos writes that LIGO (operated by MIT and Caltech) and Virgo researchers have detected gravitational waves emanating from the largest black hole merger ever detected. Amos notes the discovery was announced by the collaboration as part of an “expanded catalogue” of detections that “tells us something about the probable future successes of the laser laboratories.”
A new study co-authored by Assistant Prof. Salvatore Vitale shows that the collision of a black hole and neutron star could provide insight into how quickly the universe is expanding. One such merger could allow physicists to calculate the expansion rate “as effectively as combining data from 50 different neutron-star collisions,” reports Meghan Bartels for Space.com.
A new paper by Assistant Prof. Salvatore Vitale finds that studying the rare pairing of a neutron star and a spiraling black hole could allow researchers to determine the universe’s rate of expansion, writes Jeremy Fox of The Boston Globe. The positive detection of a collision could “potentially give a dramatic contribution to our understanding of the universe,” says Vitale.
An international research team led by postdoctoral fellow Carl Rodriguez has found that within a group of star clusters, black hole collisions can actually create larger black holes, writes Nola Taylor Redd for Fox News. A simulation showed that these black holes “should grow to be more than 50 times as massive as Earth's sun if they collide with other black holes.”
Research led by Dheeraj Pasham, a postdoc at MIT's Kavli Institute, provides evidence “that black holes feed on passing stars then eject energetic jet streams,” writes Laney Ruckstuhl for The Boston Globe. “Such black hole jet streams can have large implications for the galaxies they enter. Pasham said they can regulate the growth of a galaxy because of their energy levels."
Meghan Bartels of Newsweek discusses a discovery from the Kavli Institute of the first tidal disruption flare or “jet” that’s been produced due to a supermassive black hole consuming a star in space. “This is telling us the black hole feeding rate is controlling the strength of the jet it produces,” NASA Einstein Postdoc Fellow and lead researcher Dheeraj Pasham said.
Writing for Space.com, contributor Nola Taylor Redd describes new research from MIT and Johns Hopkins University that shows a black hole "gobbling down a stellar meal." The finding is "providing insight into how black holes devour matter and affect the evolution of galaxies," explains Redd.
Brooks Hays for UPI highlights research led by postdoc Dheeraj Pasham from MIT's Kavli Institute, that has captured the rare occurrence of “radio signals produced by a black hole devouring a star.” “This is the first time we've seen a jet that's controlled by a feeding supermassive black hole,” explained Pasham.
Prof. Emeritus Rainer Weiss has been named to The Boston Globe’s list of the 2017 Bostonians of the Year for his work starting a new revolution in astronomy. Globe reporter Eric Moskowitz notes that Weiss, “shared the Nobel Prize for Physics for conceiving and shepherding a set of observatories that allowed scientists to prove Einstein’s assertion about gravitational waves.”