Yvonne Elsworth

Last updated

Yvonne Elsworth
Education University of Manchester (BSc, PhD)
Awards
Scientific career
Fields
Institutions University of Birmingham
Thesis A field-compensated multiplex spectrometer for the visible region  (1976)
Website www.birmingham.ac.uk/schools/physics/people/staff-profile.aspx?ReferenceId=8416

Yvonne Elsworth FRS FInstP FRAS is an Irish physicist, Professor of Helioseismology and Poynting Professor of Physics in the School of Physics and Astronomy at the University of Birmingham. [2] Elsworth is also the Head of the Birmingham Solar Oscillations Network (BiSON), the longest running helioseismology network with data covering three solar cycles. [3]

Contents

Education

In 1970 Elsworth graduated with honours from the University of Manchester with a Bachelor of Science degree in Physics. In 1976 she was awarded a Doctor of Philosophy degree [4] [5] from the School of Physics at the University of Manchester. [2] [6] [7] [8]

Research

Elsworth's research interests include: helioseismology, solar physics, solar variability, asteroseismology, stellar physics and stellar variability. [2] [9] [10] [11] Her research has been funded by the Science and Technology Facilities Council (STFC). [12]

Awards and honours

Elsworth was elected a Fellow of the Royal Society (FRS) in 2015 for her work on helioseismology. [1] Her certificate of election reads:

In 2011 she was awarded the Payne-Gaposchkin Medal and Prize from the Institute of Physics (IoP). [13] Elsworth is also a Fellow of the Institute of Physics (FInstP) and a Fellow of the Royal Astronomical Society (FRAS). [14]

Related Research Articles

Asteroseismology study of oscillations in stars

Asteroseismology or astroseismology is the study of oscillations in stars. Because a star's different oscillation modes are sensitive to different parts of the star, they inform astronomers about the internal structure of the star, which is otherwise not directly possible from overall properties like brightness and surface temperature. Asteroseismology is closely related to helioseismology, the study of stellar oscillations specifically in the Sun. Though both are based on the same underlying physics, more and qualitatively different information is available for the Sun because its surface can be resolved.

Helioseismology inferring the internal structure of the Sun from the propagation of seismic waves

Helioseismology, a term coined by Douglas Gough, is the study of the structure and dynamics of the Sun through its oscillations. These are principally caused by sound waves that are continuously driven and damped by convection near the Sun's surface. It is similar to geoseismology, or asteroseismology, which are respectively the studies of the Earth or stars through their oscillations. While the Sun's oscillations were first detected in the early 1960s, it was only in the mid-1970s that it was realised that the oscillations propagated throughout the Sun and could allow scientists to study the Sun's deep interior. The modern field is separated into global helioseismology, which studies the Sun's resonant modes, and local helioseismology, which studies all the waves propagating at the Sun's surface.

16 Cygni or 16 Cyg is the Flamsteed designation of a triple star system approximately 69 light-years away from Earth in the constellation of Cygnus. It consists of two Sun-like yellow dwarf stars, 16 Cygni A and 16 Cygni B, together with a red dwarf, 16 Cygni C. In 1996 an extrasolar planet was discovered in an eccentric orbit around 16 Cygni B.

Eric Ronald Priest is Emeritus Professor at St Andrews University, having held previously the Gregory Chair of Mathematics and a Bishop Wardlaw Professorship there.

Birmingham Solar Oscillations Network Network of six solar helioseismology observatories

The Birmingham Solar Oscillations Network (BiSON) consists of a network of six remote solar observatories monitoring low-degree solar oscillation modes. It is operated by the High Resolution Optical Spectroscopy group of the School of Physics and Astronomy at the University of Birmingham, UK, in collaboration with Sheffield Hallam University, UK. They are funded by the Science and Technology Facilities Council (STFC).

Department of Physics and Astronomy, University of Manchester department of the University of Manchester

The Department of Physics and Astronomy at the University of Manchester is one of the largest and most active physics departments in the UK, taking around 250 new undergraduates and 50 postgraduates each year, and employing more than 80 members of academic staff and over 100 research fellows and associates. The department is based on two sites: the Schuster Laboratory on Brunswick Street and the Jodrell Bank Centre for Astrophysics in Cheshire, international headquarters of the Square Kilometre Array (SKA).

Solar-like oscillations are oscillations in distant stars that are excited in the same way as those in the Sun, namely by turbulent convection in its outer layers. Stars that show solar-like oscillations are called solar-like oscillators. The oscillations are standing pressure and mixed pressure-gravity modes that are excited over a range in frequency, with the amplitudes roughly following a bell-shaped distribution. Unlike opacity-driven oscillators, all the modes in the frequency range are excited, making the oscillations relatively easy to identify. The surface convection also damps the modes, and each is well-approximated in frequency space by a Lorentzian curve, the width of which corresponds to the lifetime of the mode: the faster it decays, the broader is the Lorentzian. All stars with surface convection zones are expected to show solar-like oscillations, including cool main-sequence stars, subgiants and red giants. Because of the small amplitudes of the oscillations, their study has advanced tremendously thanks to space-based missions.

Douglas Owen Gough FRS is a British astronomer, Professor Emeritus of Theoretical Astrophysics in the University of Cambridge, and Leverhulme Emeritus Fellow.

Miles J. Padgett Professor of Optics

Miles John Padgett, is Professor of Optics in the School of Physics and Astronomy at the University of Glasgow. He has held the Kelvin Chair of Natural Philosophy since 2011 and has served as Vice Principal for research at Glasgow since 2014.

Kepler-56 star

Kepler-56 is a red giant roughly 3,060 light years away with slightly more mass than the Sun. It has two confirmed planets, one slightly smaller than Neptune, and another slightly smaller than Saturn. Both planets were discovered in 2012.

Jenny Nelson Professor of Physics

Jenny Nelson is Professor of Physics in the Blackett Laboratory and Head of the Climate change mitigation team at the Grantham Institute - Climate Change and Environment at Imperial College London.

Steven Cowley British theoretical physicist

Sir Steven Charles Cowley is a British theoretical physicist and international authority on nuclear fusion and astrophysical plasmas. He has served as director of the United States Department of Energy (DOE) Princeton Plasma Physics Laboratory (PPPL) since 1 July 2018. Previously he served as president of Corpus Christi College, Oxford, since October 2016. and head of the EURATOM / CCFE Fusion Association and chief executive officer of the United Kingdom Atomic Energy Authority (UKAEA).

Henry Snaith British Professor of Physics

Henry James Snaith is a professor in physics in the Clarendon Laboratory at the University of Oxford.

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Timothy R. Bedding is an Australian astronomer known for his work on asteroseismology, the study of stellar oscillations. In particular, he contributed to the first detections of solar-like oscillations in stars such as eta Bootis, beta Hydri and alpha Centauri. He also led the discovery, using data from the Kepler space telescope, that red giants oscillate in mixed modes that are directly sensitive to the core properties of the star and can be used to distinguish red giants burning helium in their cores from those that are still only burning hydrogen in a shell.

Kepler-432 is a binary star system with at least two planets in orbit around the primary companion, located about 2,830 light-years away from Earth.

Robin Marshall is an Emeritus professor of Physics & Biology in the School of Physics and Astronomy at the University of Manchester.

Jennifer Anne Thomas,, is a British physicist and professor at University College London.

Jeremy Baumberg Professor of Physics

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References

  1. 1 2 3 Anon (2015). "Professor Yvonne Elsworth FRS". London: Royal Society. Archived from the original on 6 March 2016. One or more of the preceding sentences incorporates text from the royalsociety.org website where:
    "All text published under the heading 'Biography' on Fellow profile pages is available under Creative Commons Attribution 4.0 International License." -- "Royal Society Terms, conditions and policies". Archived from the original on 25 September 2015. Retrieved 9 March 2016.CS1 maint: unfit url (link)
  2. 1 2 3 Anon (2015). "Professor Yvonne Elsworth BSc, PhD, FRAS, FInstP Professor of Helioseismology Poynting Professor of Physics". University of Birmingham. Archived from the original on 4 March 2016.
  3. https://web.archive.org/web/20070611210739/http://astro.phys.au.dk/SONG/WORKSHOP-2006/Miller.ppt
  4. Elsworth, Yvonne P. (1976). A field-compensated multiplex spectrometer for the visible region (PhD thesis). University of Manchester. ProQuest   301333536.
  5. Elsworth, Y; James, J F; Sternberg, R S (1974). "A field compensated interference spectrometer for the visible region: the optical design". Journal of Physics E: Scientific Instruments. 7 (10): 813–816. Bibcode:1974JPhE....7..813E. doi:10.1088/0022-3735/7/10/011.
  6. Hopkinson, G. R.; Elsworth, Yvonne; James, J. F. (1974). "Dust in the head of Comet Kohoutek". Nature. 249 (5454): 233–234. Bibcode:1974Natur.249..233H. doi:10.1038/249233a0.
  7. Hopkinson, G. R.; Elsworth, Yvonne; James, J. F. (1974). "Photometry of the zodiacal light in the near infrared". Nature. 251 (5477): 694. Bibcode:1974Natur.251Q.694H. doi:10.1038/251694a0.
  8. Elsworth, Y; James, J F (1973). "An optical screw with a pitch of one wavelength". Journal of Physics E: Scientific Instruments. 6 (11): 1134–1136. Bibcode:1973JPhE....6.1134E. doi:10.1088/0022-3735/6/11/027.
  9. Yvonne Elsworth's publications indexed by the Scopus bibliographic database. (subscription required)
  10. Chaplin, W. J.; Kjeldsen, H.; Christensen-Dalsgaard, J.; Basu, S.; Miglio, A.; Appourchaux, T.; Bedding, T. R.; Elsworth, Y.; Garcia, R. A.; Gilliland, R. L.; Girardi, L.; Houdek, G.; Karoff, C.; Kawaler, S. D.; Metcalfe, T. S.; Molenda-Zakowicz, J.; Monteiro, M. J. P. F. G.; Thompson, M. J.; Verner, G. A.; Ballot, J.; Bonanno, A.; Brandao, I. M.; Broomhall, A.- M.; Bruntt, H.; Campante, T. L.; Corsaro, E.; Creevey, O. L.; Dogan, G.; Esch, L.; Gai, N.; Gaulme, P.; Hale, S. J.; Handberg, R.; Hekker, S.; Huber, D.; Jimenez, A.; Mathur, S.; Mazumdar, A.; Mosser, B.; New, R.; Pinsonneault, M. H.; Pricopi, D.; Quirion, P.- O.; Regulo, C.; Salabert, D.; Serenelli, A. M.; Aguirre, V. S.; Sousa, S. G.; Stello, D.; Stevens, I. R.; Suran, M. D.; Uytterhoeven, K.; White, T. R.; Borucki, W. J.; Brown, T. M.; Jenkins, J. M.; Kinemuchi, K.; Van Cleve, J.; Klaus, T. C. (2011). "Ensemble Asteroseismology of Solar-Type Stars with the NASA Kepler Mission". Science. 332 (6026): 213–216. arXiv: 1109.4723 . Bibcode:2011Sci...332..213C. doi:10.1126/science.1201827. PMID   21474754.
  11. Bedding, Timothy R.; Mosser, Benoit; Huber, Daniel; Montalbán, Josefina; Beck, Paul; Christensen-Dalsgaard, Jørgen; Elsworth, Yvonne P.; García, Rafael A.; Miglio, Andrea; Stello, Dennis; White, Timothy R.; De Ridder, Joris; Hekker, Saskia; Aerts, Conny; Barban, Caroline; Belkacem, Kevin; Broomhall, Anne-Marie; Brown, Timothy M.; Buzasi, Derek L.; Carrier, Fabien; Chaplin, William J.; Di Mauro, Maria Pia; Dupret, Marc-Antoine; Frandsen, Søren; Gilliland, Ronald L.; Goupil, Marie-Jo; Jenkins, Jon M.; Kallinger, Thomas; Kawaler, Steven; Kjeldsen, Hans; Mathur, Savita; Noels, Arlette; Aguirre, Victor Silva; Ventura, Paolo (2011). "Gravity modes as a way to distinguish between hydrogen- and helium-burning red giant stars". Nature. 471 (7340): 608–611. arXiv: 1103.5805 . Bibcode:2011Natur.471..608B. doi:10.1038/nature09935. PMID   21455175.
  12. Anon (2015). "UK government grants awarded to Yvonne Elsworth". Swindon: Research Councils UK. Archived from the original on 15 March 2016.
  13. Anon (2011). "2011 Payne-Gaposchkin Medal and Prize". iop.org. Retrieved 18 July 2014.
  14. Anon (2015). "Yvonne Elsworth (FRAS) elected a Fellow of the Royal Society (FRS)". ras.org.uk.