Michele Vallisneri's
vallis.org

Who I am

Theoretical physicist at NASA

Gravitational-wave science across the spectrum

  • Applying Bayesian methods to detect GWs and derive timing solutions with pulsar timing arrays.
  • Computing accurate signal models and designing effective search strategies for GWs from compact binaries and other sources.
  • Characterizing the extraction of physical information from GW signals.
  • And much more...

What is new

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LISA is a mission!

On June 20, 2017, ESA's Science Programme Committee selected LISA as the third large mission in the ESA science program. LISA will now enter a detailed study phase, the first step in a long gestation culminating with launch around 2034.

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2017/6/20

Trieste lectures

On June 13-17, 2016, I had the privilege of lecturing on gravitational waves at the 2016 Summer School of Cosmology of the International Center for Theoretical Physics in Trieste, Italy. I met dozens of smart, enthusiastic students from all over the world, and I had a chance to re-learn the foundations of my very own subject. I short, I had a ball.

Lecture videos: 1, 2, 3 (colloquium), 4, 5; slides.

2016/6/17

Pulsar-timing arrays will detect gravitational waves from supermassive black hole binaries. When?

I'm happy to report that the Astrophysical Journal just published a letter authored by our JPL/Caltech pulsar-timing group, in which we discuss how soon gravitational waves from the cosmic population of supermassive black holes could be detected by radio telescopes. We conclude that, notwithstanding recent negative results from the Parkes Pulsar Timing Array, we expect to have clear and convincing evidence of low-frequency gravitational waves within the next decade.

Our article was featured on the JPL homepage and in a NASA press release, and it was discussed in a Gizmodo article by Jennifer Ouellette.

2016/2/24


© M. Vallisneri 2014 — last modified on 2014/10/27