Alyson Brooks

Last updated
Alyson Brooks
Born
Nationality Flag of the United States.svg
Alma mater
Known for
  • Dwarf galaxy formation
  • lambda-cold-dark-matter simulations
Awards Maria Goeppert Mayer Award
Scientific career
FieldsTheoretical astrophysics
Institutions
Thesis The role of gas in the evolution of disk galaxies  (2008)
Doctoral advisor Fabio Governato
Website http://www.physics.rutgers.edu/~abrooks/

Alyson Brooks is an American theoretical astrophysicist and professor at Rutgers University. She uses large-scale simulations to determine how galaxies form.

Contents

Early life and education

Brooks grew up in Minnesota. She was interested in astronomy from a young age, and asked for a telescope as a Christmas gift when she was eight. However, she was discouraged from pursuing a career in science in her teens because of the perception that research would be isolating and unwelcoming to women. She started her undergraduate degree in English in 1996 at Macalester College. After doing well in an astronomy elective course, she was invited to join a research project and later changed her major to physics upon discovering the collaborative nature of astronomical research. [1] She wrote an honours thesis called Boron in the small magellanic cloud: a novel test of light element formation. [2]

From 2002 to 2008, Brooks was a graduate student at the University of Washington. She completed a master's degree in 2004, then a PhD in 2008. She was supervised by Fabio Governato. [3] Her thesis was The role of gas in the evolution of disk galaxies. [4]

Career

Brooks completed postdoctoral fellowships at Caltech from 2008 to 2011 [5] and then at the University of Wisconsin, Madison from 2011 to 2013. [6] In 2013, Brooks became an assistant professor in physics at Rutgers University. [1]

She specialises in large-scale simulations of galaxy formation starting approximately one million years after the Big Bang. These simulations can take up to months to run and require supercomputers. Her results suggest that stars and supernovae displace dark matter, reorganising the universe in a manner consistent with experimental observations which cannot directly detect dark matter. Brooks collaborates with high energy particle physicists who are interested in applying her findings to help tune dark matter astrophysical models. [1] Her simulations use higher spatial resolution than previous efforts, allowing her to include dynamics of dwarf galaxies in addition to large structures. Dwarf galaxies are thought to contain a large proportion of dark matter, making them useful candidates for studying the evolution of the dark matter distribution including its disappearance. [7] Brooks found that dark matter self-interactions, previously thought to be a way to indirectly observe dark matter in dwarf galaxies, may not be a significant factor after all after the Fermi Large Area Telescope delivered no positive results for a gamma ray dark matter annihilation theory. [8] One of her main contributions to state-of-the-art lambda-cold-dark-matter simulations is including baryonic matter despite its relatively smaller mass than dark matter. [9] [10]

Brooks will use the James Webb Space Telescope to image stars and dwarf galaxies in detail in the infrared, including the Messier 92 (M92) star cluster, dwarf galaxy Draco II, and the Wolf–Lundmark–Melotte (WLM) galaxy. The objective is to study how these structures formed and to track their motion. [11]

She was an organiser of the 2019 "Inclusive Astronomy" meeting. [12] Starting in 2014, she was a member of the American Astronomical Society's Committee on the Status of Minorities in Astronomy. [13] Brooks is involved in mentorship activities for undergraduate students, particularly women and minorities in science. [3]

Awards and honours

Related Research Articles

<span class="mw-page-title-main">Niels Bohr Institute</span> Scientific research institute

The Niels Bohr Institute is a research institute of the University of Copenhagen. The research of the institute spans astronomy, geophysics, nanotechnology, particle physics, quantum mechanics, and biophysics.

<span class="mw-page-title-main">Sandra Faber</span> American astrophysicist

Sandra Moore Faber is an American astrophysicist known for her research on the evolution of galaxies. She is the University Professor of Astronomy and Astrophysics at the University of California, Santa Cruz, and works at the Lick Observatory. She has made discoveries linking the brightness of galaxies to the speed of stars within them and was the co-discoverer of the Faber–Jackson relation. Faber was also instrumental in designing the Keck telescopes in Hawaii.

<span class="mw-page-title-main">Astrophysics</span> Subfield of astronomy

Astrophysics is a science that employs the methods and principles of physics and chemistry in the study of astronomical objects and phenomena. As one of the founders of the discipline, James Keeler, said, Astrophysics "seeks to ascertain the nature of the heavenly bodies, rather than their positions or motions in space–what they are, rather than where they are." Among the subjects studied are the Sun, other stars, galaxies, extrasolar planets, the interstellar medium and the cosmic microwave background. Emissions from these objects are examined across all parts of the electromagnetic spectrum, and the properties examined include luminosity, density, temperature, and chemical composition. Because astrophysics is a very broad subject, astrophysicists apply concepts and methods from many disciplines of physics, including classical mechanics, electromagnetism, statistical mechanics, thermodynamics, quantum mechanics, relativity, nuclear and particle physics, and atomic and molecular physics.

The cuspy halo problem refers to a discrepancy between the inferred dark matter density profiles of low-mass galaxies and the density profiles predicted by cosmological N-body simulations. Nearly all simulations form dark matter halos which have "cuspy" dark matter distributions, with density increasing steeply at small radii, while the rotation curves of most observed dwarf galaxies suggest that they have flat central dark matter density profiles ("cores").

<span class="mw-page-title-main">Rebecca Elson</span> Canadian writer and astronomer

Rebecca Anne Wood Elson was a Canadian–American astronomer and writer.

Amy J. Barger is an American astronomer and Henrietta Leavitt Professor of Astronomy at the University of Wisconsin–Madison. She is considered a pioneer in combining data from multiple telescopes to monitor multiple wavelengths and in discovering distant galaxies and supermassive black holes, which are outside of the visible spectrum. Barger is an active member of the International Astronomical Union.

<span class="mw-page-title-main">Carlos Frenk</span> Mexican-British cosmologist

Carlos Silvestre Frenk is a Mexican-British cosmologist. Frenk graduated from the National Autonomous University of Mexico and the University of Cambridge, and spent his early research career in the United States, before settling permanently in the United Kingdom. He joined the Durham University Department of Physics in 1986 and since 2001 has served as the Ogden Professor of Fundamental Physics at Durham University.

<span class="mw-page-title-main">Eva Grebel</span> German astronomer

Eva K. Grebel is a German astronomer. Since 2007 she has been co-director of the Astronomisches Rechen-Institut at the University of Heidelberg in Germany. Eva Grebel is an expert in the study of stellar populations and galaxy formation.

<span class="mw-page-title-main">Priyamvada Natarajan</span> Indian astronomer

Priyamvada (Priya) Natarajan is a professor in the departments of astronomy and physics at Yale University. She is noted for her work in mapping dark matter and dark energy, particularly with her work in gravitational lensing, and in models describing the assembly and accretion histories of supermassive black holes. She authored the book Mapping the Heavens: The Radical Scientific Ideas That Reveal the Cosmos.

Rachel S. Somerville is an American astronomer and holds the George A. and Margaret M. Downsbrough Chair in Astrophysics at Rutgers University. She is known for theoretical research into galaxy formation and evolution. She was awarded the 2013 Dannie Heineman Prize for Astrophysics “For providing fundamental insights into galaxy formation and evolution using semi-analytic modeling, simulations and observations.”

Ma Chung-pei is an astrophysicist and cosmologist. She is the Judy Chandler Webb Professor of Astronomy and Physics at the University of California, Berkeley. She led the teams that discovered several of largest known black holes from 2011 to 2016.

Emily Levesque is an American astronomer and assistant professor in the Department of Astronomy at the University of Washington. She is renowned for her work on massive stars and using these stars to investigate galaxy formation. In 2014, she received the Annie Jump Cannon Award for her innovative work on gamma ray bursts and the Sloan Fellowship in 2017. In 2015, Levesque, Rachel Bezanson, and Grant R. Tremblay published an influential paper, which critiqued the use of the Physics GRE as an admissions cutoff criterion for astronomy postgraduate programs by showing there was no statistical correlation between applicant's score and later success in their academic careers. Subsequently, the American Astronomical Society adopted the stance that the Physics GRE should not be mandatory for graduate school applications, and many graduate astronomy programs have since removed the Physics GRE as a required part of their graduate school applications. She is also the author of the 2020 popular science book The Last Stargazers: The Enduring Story of Astronomy's Vanishing Explorers.

<span class="mw-page-title-main">Vicky Kalogera</span> Greek astrophysicist

Vassiliki Kalogera is a Greek astrophysicist. She is a professor at Northwestern University and the director of the Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA). She is a leading member of the LIGO Collaboration that observed gravitational waves in 2015.

<span class="mw-page-title-main">Burçin Mutlu-Pakdil</span> Turkish astrophysicist

Burçin Mutlu-Pakdil is a Turkish-American astrophysicist, and Assistant Professor at Dartmouth College. She formerly served as a National Science Foundation (NSF) and Kavli Institute for Cosmological Physics (KICP) Postdoctoral Fellow at the University of Chicago. Her research led to a discovery of an extremely rare galaxy with a unique double-ringed elliptical structure, which is now commonly referred to as Burcin's Galaxy. She was also a 2018 TED Fellow, and a 2020 TED Senior Fellow.

<span class="mw-page-title-main">Kim Venn</span>

Kim A. Venn is a professor of physics and astronomy at the University of Victoria, Canada, and director of the university's Astronomy Research Centre. She researches the chemo-dynamical analysis of stars in the galaxy and its nearby dwarf satellites.

Jessica K. Werk is an American astronomer and an associate professor in the Department of Astronomy at the University of Washington. Her work includes the study of intergalactic and interstellar media. Werk was a Hubble fellow at the University of California, Santa Cruz from 2013 to 2016, and won the $65,000 Sloan Fellowship in 2018. Her research focuses on the role of gas in the formation and evolution of galaxies and the intergalactic medium, primarily through spectroscopic observations in the optical and ultraviolet.

Blakesley Burkhart is an astrophysicist. She is the winner of the 2017 Robert J. Trumpler Award awarded by the Astronomical Society of the Pacific, which recognizes a Ph.D. thesis that is "particularly significant to astronomy." She also is the winner of the 2019 Annie Jump Cannon Award in Astronomy and the 2022 winner of The American Physical Society's Maria Goeppert-Mayer Award. The awards both cited her work on magnetohydrodynamic turbulence, and for developing innovative techniques for comparing observable astronomical phenomena with theoretical models.

Anna Elisabeth Krause is a German-American astronomer and assistant professor of physics at the University of Arizona.

<span class="mw-page-title-main">Brad K. Gibson</span> Australian-Canadian astrophysicist

Brad Gibson is an Australian-Canadian astrophysicist. He is the Head of the Department of Physics & Mathematics, and Director of the E.A. Milne Centre for Astrophysics, at the University of Hull. He is known for identifying the regions of the Galaxy most likely to harbor complex biological life, designing and constructing the first operational liquid mirror telescope observatory, and using supernovae as cosmological probes, the latter for which led to the 2009 Gruber Prize in Cosmology. A passionate advocate for Widening Participation, Gibson delivers more than 100 presentations annually to schools and the general public; his Changing Face of Physics campaign has been highlighted as Good Practice by the UK Equality Challenge Unit.

<span class="mw-page-title-main">Marc Seigar</span> Dean and astrophysicist at the University of Toledo

Marc S. Seigar is an astrophysicist, academic and author. He is the Dean of the College of Natural Sciences and Mathematics, and a Professor of Physics and Astronomy at the University of Toledo.

References

  1. 1 2 3 4 Blesch, Carl. "Alyson Brooks earned Sloan Research Fellowship". MyCentralJersey.com. Retrieved 2021-05-10.
  2. Brooks, Alyson (2001). Boron in the small magellanic cloud: a novel test of light element formation. OCLC   48272511.
  3. 1 2 3 4 "Alyson Brooks - Curriculum Vitae". www.physics.rutgers.edu. Retrieved 2021-05-10.
  4. Brooks, Alyson (2008). The role of gas in the evolution of disk galaxies (Thesis). OCLC   317973707.
  5. "Postdoctoral Fellows of the Burke Institute". Walter Burke Institute for Theoretical Physics. Retrieved 2021-05-10.
  6. "Department Welcomes First Grainger Fellow UW-Madison Astronomy". www.astro.wisc.edu. Archived from the original on 2021-05-11. Retrieved 2021-05-10.
  7. "Galaxy Simulations Could Help Reveal Origins of Milky Way". www.newswise.com. Retrieved 2021-05-10.
  8. Wolchover, Natalie (2014-10-25). "Dwarf Galaxies Dim Hopes of Dark Matter". Quanta Magazine. Retrieved 2021-05-10.
  9. Kohler, Susanna (2018-02-12). "Are We Really Missing Small Galaxies?". Archived from the original on 2020-09-22. Retrieved 2021-05-10.
  10. "High-Res Simulations Help Solve Missing Massive Satellites Problem". www.astro.wisc.edu. Archived from the original on 2012-11-06. Retrieved 2021-05-10.
  11. "Rutgers Astrophysicist Will Use the New Webb Space Telescope to Determine Star Formation in Two Galaxies". Highland Park Planet. 23 February 2021. Retrieved 2021-05-10.
  12. "Inclusive Astronomy 2". STScI.edu. Retrieved 2021-05-10.
  13. 1 2 3 4 "2019 Maria Goeppert Mayer Award Recipient". www.aps.org. Archived from the original on 2019-11-13. Retrieved 2021-05-10.
  14. "LRAC Awardees". frontera-portal.tacc.utexas.edu. 31 March 2020. Retrieved 2021-05-10.