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Carole Ann Haswell

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(Redirected fromDispersed Matter Planet Project)
British astrophysicist, exoplanet researcher

Carole Ann Haswell
Haswell in anOpen University video in 2019
Alma materUniversity of Texas at Austin (PhD),
University of Oxford (BSc)
Scientific career
InstitutionsOpen University
Space Telescope Science Institute
Columbia University
University of Sussex
ThesisThe Black Hole Candidate Binary A0620-00. (1992)

Carole Ann Haswell is a British astrophysicist and current Professor of Astrophysics and Head of Astronomy at theOpen University. She is a Fellow of theRoyal Astronomical Society. She has been involved in the detection of several exoplanets, includingBarnard's Star b.

Early life and education

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Haswell was born inSaltburn-by-the-Sea,North Yorkshire, and grew up inDormanstown.[1] Her father worked on an ammonia recovery plant atImperial Chemical Industries.[1] She became interested in space as a child, when her father told her about theApollo astronauts as they gazed at the Moon while onRedcar beach.[1] Although she originally wanted to be anastronaut, she realised at the age of ten that this was impractical.[2]

She attendedHuntcliff School where she worked towards herGCE Ordinary Levels.[2] Whilst a student atPrior Pursglove and Stockton Sixth Form College, Haswell was interested in art, mathematics and physics, and was a fan of the television showStar Trek.[1] One of her physics teachers was rumoured to be biased against girls, and despite Haswell achieving the highest grades possible in herA-level exams, refused to write her a reference to study physics at university.[2] She eventually studied mathematics at theUniversity of Oxford, but wanted to apply mathematics to the real world and became tired of abstract proofs.[2]

Haswell eventually spoke toDonald Blackwell who helped her transfer courses, and enrolled on a physics degree atUniversity College, Oxford.[2] During her time as an undergraduate student, Haswell was President of the Oxford University Astronomical Society and rowed in theSummer Eights.[2] Haswell earned her doctorate at theUniversity of Texas at Austin, where she worked onblack hole binaries.[2] She attended theHubble Space Telescope launch in 1990.[2] She later joined theSpace Telescope Science Institute, where she worked onaccretion flow and multi-wavelength observations.[2]

Research and career

[edit]

In 1994, Haswell moved toColumbia University, where she worked onblack holeX-ray transients andcataclysmic variable stars.[2] She was made a lecturer at theBarnard College where one of her students wasLauryn Hill.[2] Haswell moved back to theUnited Kingdom in 1996 and was made a lecturer at theUniversity of Sussex.

Since 1999, she has been at theOpen University, at first still working onblack holes and accreting binary stars and switching to exoplanet research in 2003.[2] Early work onexoplanets was not well funded, and Haswell has spoken about using second handCanon camera lenses to make suitable telescopes.[1]

First working on accreting binary stars, and then exoplanets.[2] In particular, Haswell studies short period exoplanets.[3] Since 2012 she has led theDispersed Matter Planet Project, which involves the analysis of light from nearby stars to identify which host mass-losing planets.[4]

In 2018 Haswell was part of the team that was first to identify a planet aroundBarnard's Star, the closest single (non-binary) star to Earth, a red dwarf star that is six light years away from Earth. Using theradial velocity method, the team discoveredBarnard's Star b.[1] The planetary system aroundBarnard's Star touches on the edge of theOort cloud.[1]Barnard's Star b has a mass three times that of Earth and orbits Barnard's Star in 233 days.[1] Haswell has predicted that the planet may have a similar surface temperature toEuropa.[1]

In 2019 Haswell used theHigh Accuracy Radial Velocity Planet Searcher (HARPS) to discover six extraordinarily hot exoplanets (with surface temperatures between 1100 and 1800 °C).[5] At temperatures this high the atmosphere and surface levels of the planet can be lost, and the materials disperse into a thin sheet of gas.[5] The gas filters the light from nearby stars, which allowed Haswell and colleagues to study the chemical composition of the atmosphere of the gas sheet.[5] The planets have masses equivalent to 2.6 times the mass of the Earth with almost half the mass of Jupiter.[6] Haswell has proposed that these planets could be used to understand the geology of the rocky planets in Earth's solar system.[5]

She is part of the team forCHaracterising ExOPlanets Satellite (CHEOPS), which will examine known exoplanets to improve our understanding of their sizes.[7] CHEOPS, which features a 35 cm telescope, launched in December 2019.[7]

Public engagement and academic service

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Haswell has been featured in aRoyal Astronomical Society exhibition on women fellows.[8] She regularly provides expert opinion to the national media and is involved with various outreach programmes through theInternational Astronomical Union.[9][10] Haswell was awarded theOpen University Outreach and Public Engagement Award for her work targeted at people with low science capital inTeesside.[11]

Personal life

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Haswell has a daughter.[1] She is interested in thestock market and has used her understanding of astrophysics to buy and sell stocks.[2]

Publications

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Haswell's publications include:

References

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  1. ^abcdefghijBrown, Mike (18 November 2018)."The incredible story of the Saltburn lass who discovered a planet".gazettelive. Retrieved24 December 2019.
  2. ^abcdefghijklmn"Career case study: Carole Haswell | The Royal Astronomical Society".ras.ac.uk. Retrieved24 December 2019.
  3. ^Discovering New Planets - Professor Carole Haswell, 23 December 2019, retrieved24 December 2019
  4. ^"OU People Profile: Professor Carole Ann Haswell".Open University. Retrieved24 December 2019.
  5. ^abcdHonegan, Bridgette (24 December 2019)."Researchers make new discoveries set to reveal the geology of planets outside our solar system".phys.org. Retrieved24 December 2019.
  6. ^Lu, Donna (23 December 2019)."We've found six scorchingly hot exoplanets that are over 1100°C".New Scientist. Retrieved24 December 2019.
  7. ^abClery, Daniel (18 December 2019)."European exoplanet mission will scrutinize known worlds".Science | AAAS. Retrieved24 December 2019.
  8. ^"Women and the RAS".women.ras.ac.uk. Retrieved24 December 2019.
  9. ^"International Astronomical Union | IAU".www.iau.org. Retrieved24 December 2019.
  10. ^Knapton, Sarah (28 February 2018)."First light which ever shone in universe picked up by astronomers in 'revolutionary' breakthrough".The Telegraph.ISSN 0307-1235. Retrieved24 December 2019.
  11. ^"Announcing the winners of the SPS Outreach and Public Engagement Awards".School of Physical Sciences. 16 December 2019. Retrieved24 December 2019.
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