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Seminar - Anders Sandberg

Seminar title: Inhabiting the universe: what are the limits for habitats across the future of the universe?

It was our pleasure to welcome Anders Sandberg from the Future of Humanity Institute, University of Oxford. Anders gave an exhilarating overview of a number of potential futures for life, both as we know it and otherwise. After considering the likeliness of finding alien life given our current observational and theoretical understanding, Anders moved on to consider a variety of avenues for life to flourish in the upcoming eras of the universe.


Ground-based detection of G star superflares with NGTS

CEH member James Jackman leads a recent study of flares in G-type stars, as observed using NGTS. The study shows that G-stars can have flares many times the energy of the Carrington event, and the primary detection is one of the largest amplitude superflares detected from a bright G star.

This work was published in Monthly Notices of the Royal Astronomical Society, Volume 477, Issue 4, p.4655-4664

Open access link: arXiv

CEH members involved: James Jackman (lead), Peter Wheatley, Chloe Pugh, Boris Gänsicke, Anne-Marie Broomhall, David Armstrong & James McCormac


Cool DZ white dwarfs II: compositions and evolution of old remnant planetary systems

CEH member Mark Hollands leads a new study which examines pollution of cool DZ white dwarfs.

This work was published in Monthly Notices of the Royal Astronomical Society, Volume 477, Issue 1, p.93-111

Open access link: arXiv

CEH members involved: Mark Hollands (lead), Boris Gänsicke


Automatic vetting of planet candidates from ground based surveys: Machine learning with NGTS

CEH member David Armstrong has published a new study on automatic vetting of exoplanet candidates using machine learning techniques. In this work he applies it to candidates from NGTS, but the technique is extendable to other transiting exoplanet surveys.

This work was published in Monthly Notices of the Royal Astronomical Society, Volume 478, Issue 3, August 2018, Pages 4225–4237

Open access link: arXiv

CEH members involved: David Armstrong (lead), James McCormac, Daniel Bayliss, Tom Louden, Don Pollacco, Richard West & Peter Wheatley


Unmasking the hidden NGTS-3Ab: a hot Jupiter in an unresolved binary system

The Next Generation Transit Survey, which is led by CEH member Peter Wheatley, has publised its third planet discovery. NGTS-3Ab is in an unresolved binary system, and vetting the planet was a challenging task that produced new insights in BIS correlations in exoplanet observations.

This work was published in Monthly Notices of the Royal Astronomical Society, Volume 478, Issue 4, August 2018, Pages 4720–4737

Open access link: arXiv

CEH members involved: James McCormac, David Armstrong, Benjamin Cooke, Boris Gänsicke, Tom Louden, Don Pollacco & Peter Wheatley


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