Tim Bedding

{{Short description|Australian astrophysicist and researcher}}

{{Use dmy dates|date=July 2016}}

{{Use Australian English|date=July 2016}}

{{Infobox person

| name = Tim Bedding

| occupation = Astrophysicist

| image =

| caption = Professor Tim Bedding

| birth_date = {{Birth date and age|df=yes|1966|7|21}}

| birth_place = England, UK

| nationality = Australian

}}

Timothy R. Bedding {{post-nominals|country=AUS|FAA}} (born 21 July 1966) 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.{{citation | last1=Chaplin | first1=W.J. | last2=Miglio | first2=A. | title=Asteroseismology of Solar-Type and Red-Giant Stars | journal=Annual Review of Astronomy and Astrophysics | volume=51 | issue=1 | pages=353–392 |date=August 2013 | bibcode=2013ARA&A..51..353C | doi=10.1146/annurev-astro-082812-140938| arxiv=1303.1957 | s2cid=119222611 }} 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.{{cite journal | title = Gravity modes as a way to distinguish between hydrogen- and helium-burning red giant stars | year = 2011 | journal = Nature | volume = 471 | issue = 7340 | pages = 608–11| bibcode = 2011Natur.471..608B| doi = 10.1038/nature09935 | last1 = Bedding| first1 = Timothy R.| last2 = Mosser| first2 = Benoit| last3 = Huber| first3 = Daniel| last4 = Montalbán| first4 = Josefina| last5 = Beck| first5 = Paul| last6 = Christensen-Dalsgaard| first6 = Jørgen| last7 = Elsworth| first7 = Yvonne P.| last8 = García| first8 = Rafael A.| last9 = Miglio| first9 = Andrea| last10 = Stello| first10 = Dennis| last11 = White| first11 = Timothy R.| last12 = De Ridder| first12 = Joris| last13 = Hekker| first13 = Saskia| last14 = Aerts| first14 = Conny| last15 = Barban| first15 = Caroline| last16 = Belkacem| first16 = Kevin| last17 = Broomhall| first17 = Anne-Marie| last18 = Brown| first18 = Timothy M.| last19 = Buzasi| first19 = Derek L.| last20 = Carrier| first20 = Fabien| last21 = Chaplin| first21 = William J.| last22 = Di Mauro| first22 = Maria Pia| last23 = Dupret| first23 = Marc-Antoine| last24 = Frandsen| first24 = Søren| last25 = Gilliland| first25 = Ronald L.| last26 = Goupil| first26 = Marie-Jo| last27 = Jenkins| first27 = Jon M.| last28 = Kallinger| first28 = Thomas| last29 = Kawaler| first29 = Steven| last30 = Kjeldsen| first30 = Hans| last31 = Mathur| first31 = Savita| last32 = Noels| first32 = Arlette| last33 = Aguirre| first33 = Victor Silva| last34 = Ventura| first34 = Paolo|display-authors=1 | pmid=21455175| arxiv = 1103.5805| s2cid = 4338871 }}

Bedding has worked in the School of Physics at the University of Sydney since 1995[http://sydney.edu.au/science/people/tim.bedding.php Professor Tim Bedding - Staff Profile at the University of Sydney ] and was Head of School from 2012 to 2018.[http://sydney.edu.au/science/physics/about/history.shtml History of the University of Sydney School of Physics]

He received the University's Excellence in Teaching Award in 1999 and was appointed as a Payne Scott Professor in 2019.[https://sydney.edu.au/news-opinion/news/2018/09/25/academics-recognised-for-leadership-teaching-and-research-impact.html Academics recognised for leadership, teaching and research impact]

The asteroid 231470 Bedding is named after him.{{cite web |title=Guest Speaker - Prof Tim Bedding (University of Sydney) - SASI |url=http://www.sasi.net.au/event-calendar/icalrepeat.detail/2019/11/07/513/-/guest-speaker-prof-tim-bedding-university-of-sydney |website=www.sasi.net.au}}

He played on the Australian team in the 1990 Ultimate Frisbee World Championships in Oslo, Norway.{{cite web|url=http://afda.com/national-team-results#1990OPEN|title=National Team Results |website=afda.com|publisher=Australian Flying Disc Association}}

In May 2020 Bedding was elected Fellow of the Australian Academy of Science.{{Cite web|title=Tim Bedding|url=https://www.science.org.au/profile/tim-bedding|last=|first=|date=|website=Australian Academy of Science|language=en|archive-url=|archive-date=|access-date=2020-05-25}}

In 2022, he was awarded an ARC Laureate Fellowship to use asteroseismology to measure the ages of stars.