PATT-linked grant for Warwick Astronomy & Astrophysics Group, April 2013 to March 2015

Lead Research Organisation: University of Warwick
Department Name: Physics

Abstract

At the end of their lives stars settle into one of three possible final compact states known as white dwarfs, neutron stars or black-holes. All three of these are incredibly dense by our standards, so much so that to a neutron star matter at Earth-like densities is only a little different from a vacuum. Many examples of such objects are known, and they are often far from being inactive as they can be so closely paired up with other stars than we can see the effects of gas transferring from one star to the compact object. In such a process the gas can be heated to many millions of degrees making these object efficient X-ray sources. Furthermore, both white dwarfs and neutron stars can show explosive effects as material accreting onto them sparks into uncontrollable fusion, generating vast amounts of energy within seconds or minutes. Such explosions can light up the furthest reaches of the Universe to reveal the history of the build up of structures in the Universe. Our work centres on trying to understand such processes and how the various objects that we see relate to one another. The purpose of this grant is to support the travel needed to observe these objects on ground-based telescopes where we carry out observations of the high-speed processes that occur as material crashes onto these remarkable objects. The grant will also support work on exoplanets, where high-precision measurements of brightness and velocity are essential to the measurements of the masses and radii of planets required to understand the nature of planets far beyond our Solar System.

Publications

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Armstrong D. J. (2016) K2 variable catalogue - II. Machine learning classification of variable stars and eclipsing binaries in K2 fields 0-4 in Monthly Notices of the Royal Astronomical Society

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Armstrong D. J. (2017) Transit shapes and self-organizing maps as a tool for ranking planetary candidates: application to Kepler and K2 in Monthly Notices of the Royal Astronomical Society

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Armstrong D. J. (2016) The host stars of Kepler's habitable exoplanets: superflares, rotation and activity in Monthly Notices of the Royal Astronomical Society

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Barros S. C. C. (2015) Photodynamical mass determination of the multiplanetary system K2-19 in Monthly Notices of the Royal Astronomical Society

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Bayliss D. (2017) EPIC 201702477b: A Transiting Brown Dwarf from K2 in a 41 day Orbit in The Astronomical Journal

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Bours M (2015) A double white dwarf with a paradoxical origin? in Monthly Notices of the Royal Astronomical Society

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Burton J. R. (2015) Defocused transmission spectroscopy: a potential detection of sodium in the atmosphere of WASP-12b in Monthly Notices of the Royal Astronomical Society

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Copperwheat C. M. (2016) Liverpool Telescope follow-up of candidate electromagnetic counterparts during the first run of Advanced LIGO in Monthly Notices of the Royal Astronomical Society

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Haywood R. D. (2016) The Sun as a planet-host star: proxies from SDO images for HARPS radial-velocity variations in Monthly Notices of the Royal Astronomical Society

 
Description This grant is aimed at observations across a diverse range of topics of astronomical research including exoplanets, binary stars, cosmic explosions and the distant Universe. This grant was primarily concerned with obtaining the observations. Their analysis and interpretation was done as part of other grants and will be reported separately.
Exploitation Route These observations naturally raise further questions, and additional applications for both telescope time and grants are spurred by them.
Sectors Education,Other

 
Description The aim of this grant was to provide support for an observing programme, mainly on STFC funded (PATT). Observations are taking place.
First Year Of Impact 2013
Sector Education,Other
Impact Types Societal