Looking for older articles? Archived Cosmology News 2014-2007
Mohit Bhardwaj Earns Gruber FellowshipCarnegie Mellon University postdoctoral researcher Mohit Bhardwaj received a Gruber Fellowship for his work investigating Fast Radio Bursts (FRBs).
Hubble Telescope Finds Double Quasar in Early UniverseNASA’s Hubble Space Telescope made an unexpected discovery — a pair of gravitationally bound quasars inside of two merging galaxies that existed when the universe was just 3 billion years old. An international group of researchers, including cosmologists from Carnegie Mellon University reported the discovery in the April 5 issue of Nature.
Da Vinci Society Honors New Physics ProfessorAntonella Palmese studies the evolution of the universe and the evolution of galaxies using large galaxy surveys and gravitational waves.
Ali Shakir Aims to Shine Light on Gravitational LensingCarnegie Mellon University student Ali Shakir is working to correct an error in how cosmologists measure intrinsic galaxy alignments. When viewing faint galaxy images, researchers have to factor in distortions such as when a distribution of matter — like a cluster of galaxies — has a gravitational field that bends the light of a distant source as it travels toward an observer. The phenomenon is known as gravitational lensing.
Announcing the McWilliams/PSC Seed Grant 2022 RecipientsThe McWilliams Center for Cosmology and the Pittsburgh Supercomputing Center (PSC) are excited to announce the recipients of their seed grant program to support faculty, postdoctoral fellows, and research staff who want to explore a new area of research or jumpstart their research activity.
Hey Siri: How Much Does This Galaxy Cluster Weigh?Hey Siri: How Much Does This Galaxy Cluster Weigh? Novel machine learning method predicts mass of a galaxy cluster
Physics’ Yueying Ni Receives Berry Research AwardYueying Ni, a Ph.D. candidate in the physics department, has received the Guy C. Berry Graduate Research Award for her accomplishments while developing cosmological simulations to study supermassive black holes.
Physicist Carl Rodriguez Named 2022 Sloan FellowCarl Rodriguez, an assistant professor in Carnegie Mellon University’s Department of Physics and member of the McWilliams Center for Cosmology, is among 118 recipients of 2022 Sloan Research Fellowships, which honor early career scholars whose achievements put them among the very best scientific minds today.
Neutrino’s Mass Smaller Than Previously KnownThe neutrino, the tiniest of the fundamental particles, is even smaller than previously known. The Karlsruhe Tritium Neutrino Experiment (KATRIN), an international team of researchers including Carnegie Mellon physicist Diana Parno, has established a new upper limit on the neutrino’s mass at less than 0.8 electron volts (eV). The team’s findings were published in Nature Physics.
Announcing the McWilliams/PSC Seed Grant 2021 RecipientsThe McWilliams Center for Cosmology and the Pittsburgh Supercomputing Center (PSC) are excited to announce the recipients of their seed grant program to support faculty, postdoctoral fellows, and research staff who want to explore a new area of research or jumpstart their research activity.
Yueying Ni Wins McWilliams FellowshipPhysics Ph.D. candidate Yueying Ni has received the Bruce McWilliams Graduate Fellowship, which provides support to a MCS graduate student studying in an area where Carnegie Mellon has a comparative advantage and where research is at an emerging or critical stage.
Carnegie Mellon, University of Washington to Pioneer Platforms that Harness Astrophysical Data to Unravel the Universe’s MysteriesCarnegie Mellon University and the University of Washington have announced an expansive, multi-year collaboration to create new software platforms to analyze large astronomical datasets generated by the upcoming Legacy Survey of Space and Time (LSST), which will be carried out by the Vera C. Rubin Observatory in northern Chile.
Dark Energy Survey Releases Most Precise Look at the Universe’s EvolutionNew results from the Dark Energy Survey (DES) used the largest ever sample of galaxies over an enormous piece of the sky to produce the most precise measurements of the universe’s composition and growth to date. Scientists measured that the way matter is distributed throughout the universe is consistent with predictions in the standard cosmological model, the best current model of the universe.
Applications Now Open for McWilliams Center Seed Funding GrantsSeed funding grants have been established to support McWilliams Center faculty members, postdocs, graduate students, and research staff to conduct preliminary analyses, demonstrate proof of concept, collect preliminary data, and establish the potential for high impact of the proposed idea for future proposal submissions.
Machine Learning Accelerates Cosmological SimulationsResearchers at Carnegie Mellon University have developed a way to create a complex simulated universe in less than a day. The technique, published in this week’s Proceedings of the National Academy of Sciences, brings together machine learning, high-performance computing and astrophysics and will help to usher in a new era of high-resolution cosmology simulations.
Carl Rodriguez Receives Kaufman Foundation New Investigator AwardAssistant Professor of Physics Carl Rodriguez has received a New Investigator Award from the Charles E. Kaufman Foundation. The two-year, $150,000 grant will support his research into understanding the origins of binary black holes and the gravitational waves they produce.
NASA’s Roman Space Telescope to Uncover Echoes of the Universe’s CreationNASA’s Nancy Grace Roman Space Telescope will detect vestiges of sound waves that once rippled through the primordial cosmic sea. According to new simulations led by alumnus Siddharth Satpathy, Roman’s observations could extend these measurements into an unprobed epoch between the universe’s infancy and the present day. Studying the echoes from this era will help us trace the evolution of the universe and solve pressing cosmic conundrums.
Simulations Show Webb Telescope Can Reveal Distant Galaxies Hidden in Quasars’ GlareNew research suggests that NASA’s James Webb Space Telescope, set to launch in 2021, will be able to reveal the host galaxies of some distant quasars despite their small sizes and obscuring dust. The study made use of a powerful computer simulation developed by a team of Carnegie Mellon University researchers led by Professor of Physics Tiziana Di Matteo, director of the McWilliams Center for Cosmology.
Carnegie Mellon Named NSF Planning Institute for Artificial Intelligence in PhysicsCarnegie Mellon University has received a $500,000 planning grant from the National Science Foundation (NSF) to work toward creating a National Artificial Intelligence Research Institute in Physics. The grant creates 5 full institutes and 10 planning institutes that will focus on advancing foundational artificial intelligence (AI) research, accelerating innovation in scientific fields using AI, building the next generation of talent and bringing together scientists from a wide range of fields for interdisciplinary collaboration. The grants represent the NSF’s most significant investment in AI research and workforce development to-date.
Announcing the McWilliams/PSC Seed Grant 2020 RecipientsThe McWilliams Center for Cosmology and the Pittsburgh Supercomputing Center (PSC) are excited to announce the recipients of a new seed grant program to support faculty, postdoctoral fellows, and research staff who want to explore a new area of research or jumpstart their research activity.
McWilliams Center Announces New Seed Funding GrantsNew seed funding grants have been established to support McWilliams Center faculty members, postdocs, graduate students, and research staff to conduct preliminary analyses, demonstrate proof of concept, collect preliminary data, and establish the potential for high impact of the proposed idea for future proposal submissions.
Gilman Elected 2019 AAAS FellowPhysics Professor Fred Gilman has been elected to the American Association for the Advancement of Science’s (AAAS) 2019 class of fellows. Gilman was recognized for his work elucidating the fundamental nature of CP violation and his sustained and successful leadership in the particle physics and cosmology communities.
Tiziana Di Matteo Awarded NASA Grant to Study Black Holes and Gravitational WavesProfessor of Physics Tiziana Di Matteo has been awarded a grant from the Astrophysics Theory Program at NASA to pursue her research on multi-messenger astrophysics with regards to massive black hole binaries.
A Runaway Star Ejected from the Galactic Heart of DarknessAstronomers, including CMU Physics Professor Sergey Koposov, have spotted an ultrafast star, traveling at a blistering six million km/h, that was ejected by the supermassive black hole at the heart at the Milky Way five million years ago.
Scientists Weigh the Balance of Matter in Galaxy ClustersA method of weighing the quantities of matter in galaxy clusters — the largest objects in our universe — has shown a balance between the amounts of hot gas, stars and other materials.
Mirror, Mirror on the MountainA unique astronomical mirror reached its new home in the Andes Mountains of Northern Chile. This incredible mirror will enable the Large Synoptic Survey Telescope (LSST) to catalog an estimated ~40 billion celestial objects—more objects than there are humans on earth.
Carnegie Mellon Physicist Rachel Mandelbaum Named 2019 Simons InvestigatorCarnegie Mellon University physicist Rachel Mandelbaum has been named a 2019 Simons Investigator by the Simons Foundation.
Mandelbaum Elected Spokesperson for LSST Dark Energy Science CollaborationCarnegie Mellon University Associate Professor of Physics Rachel Mandelbaum has been elected as the spokesperson for the Large Synoptic Survey Telescope’s (LSST) Dark Energy Science Collaboration (DESC). Mandelbaum will serve as spokesperson-elect until her two-year term begins on July 1.
LSST Primary/Tertiary Mirror Leave Tuscon, Bound for ChileThe 8.4-meter Primary/Tertiary Mirror (M1M3) for the Large Synoptic Survey Telescope (LSST) has begun its journey from Tucson to north-central Chile, where it will be integrated with the telescope on Cerro Pachón.
Dark Energy Survey Completes Six-Year MissionAfter scanning in depth about a quarter of the southern skies for six years and cataloging hundreds of millions of distant galaxies, the Dark Energy Survey (DES) will finish taking data tomorrow, on Jan. 9.
Dark Matter on the MoveScientists have found evidence that dark matter can be heated up and moved around, as a result of star formation in galaxies. The findings provide the first observational evidence for the effect known as ‘dark matter heating,’ and give new clues as to what makes up dark matter. The research is published today in the journal Monthly Notices of the Royal Astronomical Society.
Hyper Suprime-Cam Survey Maps Dark Matter in the UniverseAn international group of researchers, including Carnegie Mellon University’s Rachel Mandelbaum, has released the deepest wide field map of the three-dimensional distribution of matter in the universe ever made and increased the precision of constraints for dark energy with the Hyper Suprime-Cam survey (HSC).
The Gaia Sausage: The Collision That Changed the Milky WayBetween 8 billion and 10 billion years ago, a dwarf galaxy crashed into our own Milky Way. The dwarf did not survive, but its final act redefined the shape of the Milky Way. Our galaxy has never been the same.
Scientists Spot Explosive Counterpart of LIGO/Virgo’s Latest Gravitational WavesToday, a team of scientists using the Dark Energy Camera (DECam), the primary observing tool of the Dark Energy Survey, was among the first to observe the fiery aftermath of a recently detected burst of gravitational waves, recording images of the first confirmed explosion from two colliding neutron stars ever seen by astronomers. Their data was bolstered by data captured at other observatories around the world.
Stanford’s Dan Akerib to Give CMU’s Bennett-McWilliams LectureDo WIMPs rule in the hunt for dark matter? Learn more about dark matter and the current state of the search for dark matter particles when Stanford physicist Dan Akerib gives Carnegie Mellon University’s Bennett-McWilliams Lecture in Cosmology Thursday, Oct. 26, at 4:30 p.m. in the Gates-Hillman Center’s Rashid Auditorium.
Carnegie Mellon Hosts Large Synoptic Survey Telescope Hack WeekWhile the Large Synoptic Survey Telescope (LSST) is being built in Chile, researchers from around the world are working hard to develop the research infrastructure that they will need to interpret the vast amounts of data that the telescope will create as it surveys the sky over the course of 10 years.
Assembly Bias In Galaxy ClusteringRachel Mandelbaum, has shown that the relationship between galaxy clusters and their surrounding dark matter halo is more complex than previously thought. The researchers’ findings, published in Physical Review Letters, are the first to use observational data to show that, in addition to mass, a galaxy cluster’s formation history plays a role in how it interacts with its environment.
Dark Energy Spectroscopic Instrument Receives Next Step of Approval from DOEThe Dark Energy Spectroscopic Instrument (DESI) has reached its next major milestone. The project has received Critical Decision-2 approval from the U.S. Department of Energy (DOE). This approval authorizes the project’s scientific scope, schedule and funding profile, ensuring that the project will be supported into the next decade.
Milky Way-Like Galaxies May Have Existed in the Early UniverseA new, large-scale computer simulation has shown for the first time that large disk galaxies, much like our own Milky Way, may have existed in the early days of the universe.
Unexpected Gamma-Ray Emission From Dwarf Galaxy May Point to New Understanding of Dark MatterA newly discovered dwarf galaxy orbiting our own Milky Way has offered up a surprise — it appears to be radiating gamma rays, according to an analysis by physicists at Carnegie Mellon, Brown and Cambridge universities. The exact source of this high-energy light is uncertain at this point, but it just might be a signal of dark matter lurking at the galaxy’s center.
September 2022: Welcome Mohit Bhardwaj, Our New Postdoc!
Mohit Bhardwaj received his bachelor's degree in electronics and electrical engineering and has an integrated master's degree in Physics from BITS Pilani in India. He will soon receive his PhD in Physics from McGill University. His research interests include astrophysical transients, interstellar medium, astrostatistics, observational cosmology and radio instrumentation. He is a member of the Canadian Hydrogen Intensity Mapping Experiment (CHIME) where he works on a newly discovered astrophysical mystery, Fast Radio Burst (FRB). In his PhD work, he used local Universe CHIME bursts to decipher the origins of FRBs. FRBs, he believes, can provide a unique view into the aftermath of some of the Universe’s most violent events. In addition to solving the FRB origin problem, he wants to use FRBs to map the cosmic web. Finally, he is always on the lookout for unexplored enigmas of the Universe. So, if you know of any, don’t hesitate to contact him.
August 2022: Professor Tiziana DiMatteo's Research Featured in Quanta Magazine
Professor Tiziana DiMatteo's research is featured in Quanta Magazine's August 23, 2022 article by Thomas Lewton, "What Drives Galaxies? The Milky Way’s Black Hole May Be the Key". She was asked to touch on the significance the size of a galaxy and the weight of its black hole.
“This was particularly tight, and it was totally revolutionary. Somehow the black hole is talking to the galaxy,” said Tiziana Di Matteo, an astrophysicist at Carnegie Mellon University.
Read to the full Article or for more a more detailed exploration on galaxies and black holes.
November 2022: McWilliams Center Fellow Mohit Bhardwaj wins Brockhouse Canada Prize
McWilliams Center Fellow Mohit Bhardwaj wins Natural Sciences and Engineering Research Council of Canada’s (NSERC) Brockhouse Canada Prize as part of the Canadian Hydrogen Intensity Mapping Experiment (CHIME) team.
The award recognizes close to 100 people on the CHIME team being recognized for their research in science and engineering. Read more about the award and Mohit’s work as part of the CHIME team here