Brian Paul Schmidt AC, FRS, FAA (born February 24, 1967) is a Distinguished Professor, Australian Research Council Laureate Fellow and astrophysicist at The Australian National University's Mount Stromlo Observatory and Research School of Astronomy and Astrophysics and is known for his research in using supernovae as cosmological probes. He currently holds an Australia Research Council Federation Fellowship and was elected a Fellow of the Royal Society (FRS) in 2012.Schmidt shared both the 2006 Shaw Prize in Astronomy and the 2011 Nobel Prize in Physics with Saul Perlmutter and Adam Riess for providing evidence that the expansion of the universe is accelerating, making him the only Montana-born Nobel laureate. In June 2015, his appointment as the next Vice-Chancellor of the Australian National University, commencing in January 2016, was announced.
Schmidt, an only child, was born on February 24, 1967, in Missoula, Montana, where his father Dana C. Schmidt was a fisheries biologist. When he was 13, his family relocated to Anchorage, Alaska.
Schmidt attended Bartlett High School in Anchorage, Alaska, and graduated in 1985. He has said that he wanted to be a meteorologist "since I was about five-years-old [but] ... I did some work at the USA National Weather Service up in Anchorage and didn't enjoy it very much. It was less scientific, not as exciting as I thought it would be—there was a lot of routine. But I guess I was just a little naive about what being a meteorologist meant." His decision to study astronomy, which he had seen as "a minor pastime", was made just before he enrolled at university.[9] Even then, he was not fully committed: he said "I'll do astronomy and change into something else later," and just never made that change.
He earned his BS (Physics) and BS (Astronomy) from the University of Arizona in 1989.[11] He received his MA (Astronomy) in 1992 and then PhD (Astronomy) in 1993 from Harvard University.Schmidt's PhD thesis was supervised by Robert Kirshner and used Type II Supernovae to measure the Hubble Constant.
At Harvard, he met his future wife, the Australian (Jenny) Jennifer M. Gordon who was a PhD student in economics. In 1994, he moved to Australia.[7Schmidt was a postdoctoral research Fellow at the Harvard-Smithsonian Center for Astrophysics (1993–1994) before moving on to the ANU's Mount Stromlo Observatory in 1995.
In 1994, Schmidt and Nicholas B. Suntzeff formed the High-Z Supernova Search Team to measure the expected deceleration of the universe and the deceleration parameter (q0) using distances to Type Ia supernovae. In 1995, the HZT at a meeting at the Harvard-Smithsonian Center for Astrophysics elected Schmidt as the overall leader of the HZT. Schmidt led the team from Australia and in 1998 in the HZT paper with first author Adam Riess the first evidence was presented that the universe's expansion rate is not decelerating; it is accelerating. The team's observations were contrary to the then-current models, which predicted that the expansion of the universe should be slowing down, and when the preliminary results emerged Schmidt assumed it was an error and he spent the next six weeks trying to find the mistake. But there was no mistake: contrary to expectations, by monitoring the brightness and measuring the redshift of the supernovae, they discovered that these billion-year old exploding stars and their galaxies were accelerating away from our reference frame. This result was also found nearly simultaneously by the Supernova Cosmology Project, led by Saul Perlmutter. The corroborating evidence between the two competing studies led to the acceptance of the accelerating universe theory and initiated new research to understand the nature of the universe, such as the existence of dark energy.The discovery of the accelerating universe was named 'Breakthrough of the Year' by Science in 1998, and Schmidt was jointly awarded the 2011 Nobel Prize in Physics along with Reiss and Perlmutter for their groundbreaking work.
Schmidt is currently leading the SkyMapper telescope Project and the associated Southern Sky Survey, which will encompass billions of individual objects, enabling the team to pick out the most unusual objects. In 2014 they announced the discovery of the first star which did not contain any iron, indicating that it is a very primitive star, probably formed during the first rush of star formation following the Big Bang.
He is the Chairman of the Board of Directors of Astronomy Australia Limited. In July 2012 Schmidt was given a three-year appointment to sit on the Questacon Advisory Council.ANU Vice Chancellor[edit]
On the 24th of June 2015 it was announced he would replace Ian Young as the 12th Vice-Chancellor of Australian National University, to commence his tenure on the 1 January 2016 The Chancellor of the Australian National University, Professor Gareth Evans, said, "Brian Schmidt is superbly placed to deliver on the ambition of ANU founders - to permanently secure our position among the great universities of the world, and as a crucial contributor to the nation," Professor Evans said. ... We had a stellar field of international and Australian candidates, and have chosen an inspirational leader. ... Brian's vision, vitality, global stature and communication skills are going to take our national university to places it has never been before."
Science advocacy
The publicity that came with winning the Nobel Prize has given Schmidt the opportunity to help the public understand why science is important to society, and to champion associated causes.
Public education
One of his first acts after winning the Nobel Prize was to donate $100,000 out of his prize money to the PrimaryConnections program, an initiative of the Australian Academy of Science that assists primary school teachers. He has continued to press for improvements to the public school system, particularly in the sciences and mathematical literacy (numeracy) He sees the major problem is that so few of the teachers are trained in "STEM" (science, technology, engineering and mathematics) disciplines. He used the opportunity of delivering a speech at the National Press Club to call for more focus on the public education system, including holding principals more accountable and the proper use of standardized testing, concluding with the warning that otherwise "the fundamental tenant of Australian democracy, that we all deserve a fair go, is at risk of being eroded away along with our public school system." At the other end of the spectrum, he also raises the profile of the matter by visiting primary schools personally to answer children's questions.
Funding for scientific and medical research
Schmidt is a strong supporter of funding scientific and medical research on a long-term, non-partisan basis driven by a national research strategy.He has often voiced his concern that the current year-to-year uncertainty and lack of co-ordination make it difficult to establish and staff large facilities, or to participate in multi-national ventures, and that scientists spend too much time applying for funding instead of doing research. Interviewed by the Australian Financial Review, Schmidt was characteristically forthright: "It's unclear to me whether or not we will continue to be a great astronomy nation... If we're damaged it will take 20 years to fix ourselves. It only takes one year to cause 20 years of damage."
Climate change
He urges people to pay attention to the consensus of expert opinions, instead of basing their conclusions on the incomplete information which they personally know. Launching the Australian Academy of Science's report "The science of climate change: questions and answers", Schmidt commented that "Whenever this subject comes up, it never ceases to amaze me how each person I meet suddenly becomes an expert... More surprising is the supreme confidence that non-experts (scientists and non-scientists alike) have in their own understanding of the subject."He even put up $10,000 of his own money in a bet with Maurice Newman, who is the chairman of the Prime Minister's Business Council, that global temperatures will rise.[3Schmidt has received the Australian Government's inaugural Malcolm McIntosh Prize for achievement in the Physical Sciences in 2000, Harvard University's Bok Prize in 2000, the Australian Academy of Science's Pawsey Medal Medal in 2001, and the Astronomical Society of India's Vainu Bappu Medal in 2002. He was the Marc Aaronson Memorial Lecturer in 2005, the same year he received an ARC Federation Fellowship,and in 2006 he shared the Shaw Prize in Astronomy with Adam Riess and Saul Perlmutter.
Schmidt and the other members of the High-Z Team (the set defined by the co-authors of Riess et al. 1998) shared the 2007 Gruber Cosmology Prize, a $500,000 award, with Saul Perlmutter of the Lawrence Berkeley National Laboratory and the Supernova Cosmology Project (the set defined by the co-authors of Perlmutter et al. 1999) for their discovery of the accelerating expansion of the universe.
Schmidt, along with Riess and Perlmutter, jointly won the 2011 Nobel Prize in Physics for their observations which led to the discovery of the accelerating universe.
Schmidt was named "Australian of the Year" for 2011, and he was appointed a Companion of the Order of Australia in the 2013 Australia Day Honours. He is a Fellow and council member of the Australian Academy of Science, The United States National Academy of Sciences, the Royal Society, and Foreign Member of the Spanish Royal Academy of Sciences.
Schmidt, Adam Riess, and the High-Z Supernova Search Team shared in the 2015 Breakthrough Prize in Fundamental Physics.
Schmidt was awarded the Pawsey Medal in 2001, the Shaw Prize in 2006. He was elected a Fellow of the Royal Society (FRS) in 2012,and awarded the Dirac Medal in 2012. His certificate of election to the Royal Society reads:
“ Brian Schmidt is an internationally renowned researcher in cosmology and also in the physics of supernovae and gamma ray bursts. In particular, Schmidt’s formation and leadership of the High-z Supernova Search Team led to the discovery that the expansion of our universe is accelerating, for which he shared the 2011 Nobel Prize in Physics. This discovery completely changed our understanding of the universe. It showed that about 70% of the mass of our Universe is in a previously unknown form which is now usually referred to as ‘Dark Energy
No comments:
Post a Comment