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News

Sex chromosome transformation and the origin of a male-specific X chromosome in the creeping vole

Matthew B. Couger, Scott W. Roy, Noelle Anderson, Landen Gozashti, Stacy Pirro, Lindsay S. Millward, Michelle Kim, Duncan Kilburn, Kelvin J. Liu, Todd M. Wilson, Clinton W. Epps, Laurie Dizney, Luis A. Ruedas, Polly Campbell Mystery solved? Chromosomal sex determination arises when an autosomal locus acquires a sex-determining function. In some taxa, this process occurs often. The XY system in…

Event Horizon Telescope Maps Emissions From Black Hole

The Event Horizon Telescope Collaboration has published results showing how the project was able to map and create imagery of polarized emissions from material rotating within the magnetic field near the event horizon of the supermassive black hole in galaxy M87.  Scientists from Harvard's Center for Astrophysics and Black Hole Initiative used the FASRC cluster for several parts of this projects'…

Deep rotating convection generates the polar hexagon on Saturn

Rakesh K. Yadav Jeremy Bloxham PNAS June 23, 2020 117 "The hexagonal flow pattern on Saturn is a striking example of turbulent self-organization. However, the mechanism of its formation and its depth remain unclear. There are two hypotheses: in one, the hexagon is shallow, extending to depths ranging from tens to hundreds of kilometers; in the other, it extends to thousands…

The Milky Way’s giant, wave-like collection of gas

Astronomers at Harvard University have discovered a monolithic, wave-shaped gaseous structure - the largest ever seen in our galaxy - made up of interconnected stellar nurseries. Dubbed the “Radcliffe Wave” in honor of the collaboration’s home base, the Radcliffe Institute for Advanced Study, the discovery transforms a 150-year-old vision of nearby stellar nurseries as an expanding ring into one featuring…

New scratchlfs02 online, see details

Dec 18, 2019   As most of you know, the scratchlfs system has exhibited performance issues and instability for some time. We're pleased to announce that a replacement system has been delivered, built, tested, benchmarked, and is ready for your use now at /n/scratchlfs02 .   Along with regular monthly maintenance on January 13th, 2020 ( https://www.rc.fas.harvard.edu/monthly-maintenance ), some changes…

Harvard/Yale meetup at MGHPCC

by Maggie McFee - Nov. 13, 2019   While attending the PEARC conference, Maggie and Austin ran into some of our Yale Research Computing counterparts: Kaylea, Robert, and Ben. While there's an intense sports rivalry between the two schools, this wasn't the case with our RC departments. We really hit it off well and we talked about our similarities, differences,…

Convergent regulatory evolution & loss of flight in paleognathous birds

The Evolution of Flightless Birds: Study explores the genetics behind how they developed   "Since Darwin’s era, scientists have wondered how flightless birds like emus, ostriches, kiwis, cassowaries, and others are related, and for decades the assumption was that they must all share a common ancestor who abandoned the skies for a more grounded life. By the early 2000s, new…

FASRC Cluster Refresh 2019

As of the November 2019 rankings, Cannon has ranked #144 on the Top500 list!  For current cluster details, please see: https://www.rc.fas.harvard.edu/about/cluster-architecture/ For current partition configurations and changes, please see the Running Jobs page The lease on the Odyssey compute cluster comes to an end this year, and a hardware refresh of the cluster will occur in September. Current ETA for…

Deep learning of aftershock patterns following large earthquakes

Phoebe M. R. DeVries, Fernanda Viégas, Martin Wattenberg & Brendan J. Meade "Aftershocks are a response to changes in stress generated by large earthquakes and represent the most common observations of the triggering of earthquakes. The maximum magnitude of aftershocks and their temporal decay are well described by empirical laws (such as Bath’s law and Omori’s law), but explaining and forecasting…

Unraveling the Stellar Content of Young Clusters

"CfA astronomers Rafael Martinez-Galarz and Howard Smith and their two colleagues have developed a new statistical analysis technique to address the problem of confused SEDs in clustered environments. Using the highest spatial resolution images for each region, the team identifies the distinguishable stars (at least this many are in the cluster) and their emission at those wavelengths." More at the…

FASRC staff will be attending an all-hands Monday October 18th 10am-3pm.
Next monthly maintenance November 1st [DETAILS]