My research probes galaxy evolution over a time span of about 11 billion years, and tries to answer questions such as: What did galaxies look like when the Universe was young? How can we best describe galaxies in a quantitative way? How do changes in galactic structure map onto ideas for the underlying physics of galaxy evolution? Technological advances drive my efforts to answer these questions: at the moment I am building a novel telescope array in New Mexico to image very faint structures in nearby galaxies, and I am using Adaptive Optics on large telescopes to study the evolution of galaxy sizes over cosmic time.
I am interested in the study of the birth and evolution of binary stars and planetary systems, dynamics of astrophysical disks, physics of circumstellar dust, with occasional diversions to binary blackholes and AGNs
University Professor, CITAEarly Universe; Origin and Evolution of Cosmic Structure; Cosmic Radiation Backgrounds; The Dark Matter & Dark Energy Problems; Particle and Gravitational Theory.Ph.D. 1979, Caltech
Associate Graduate Chair, Associate ProfessorGalactic dynamics; galactic structure and evolution; dark matter; chemical abundances and spectroscopy; data modeling and analysis techniquesPh.D. 2011 New York
My research is focused on understanding the structure and formation of galaxies, in particular the Milky Way. I use data from large surveys to investigate the distribution of stars in the Milky Way and how this distribution depends on the age and chemical composition of stars, which allows me to identify the basic processes that govern the formation and evolution of the Milky Way and disk galaxies like it. I am also interested in using the observed kinematics of stars to infer the distribution of mass—dark matter in particular—in our Galaxy. I am an active member of the APOGEE survey, which uses high-resolution, high signal-to-noise infrared spectroscopy to investigate the structure of the bulge and disk regions of the Milky Way, as well as many other topics in stellar and galactic astrophysics.
I am primarily interested in cosmology and galaxy formation and evolution using both observational and theoretical approaches. Recently I was one of the leaders of the Supernova Legacy Survey which found that the dark energy was constant in time to a precision of better than 10%, consistent with Einstein’s cosmological constant. I am also interested in star streams as indicators of the dark matter substructure of the Milky Way halo. I was the Thirty Meter Telescope’s Canadian Project Director 2003-17.
Assistant Professor, DADDAA & Statisticsastrostatistics, Bayesian hierarchical modelling, Milky Way structure and dynamics, globular clusters, time series analysis, MCMC and sampling methodsPhD 2017, McMaster University
My research is in the interdisciplinary field of astrostatistics, and I am jointly-appointed between the Department of Astronomy & Astrophysics and the Department of Statistical Sciences. I am interested in using and developing modern statistical methods for astronomy applications to answer fundamental questions about the universe. For example, I use hierarchical Bayesian analysis to study the dark matter halo of the Milky Way and other galaxies, and am developing new time series analysis methods to learn about the internal structure of stars.
I use weak gravitational lensing and other precision cosmology methods to measure the large-scale structure of the universe. Much of my work involves developing statistical techniques that distill cosmological information from measurements of galaxy sizes, shapes, and colors. As a member of the science team for the upcoming Roman Space Telescope, I also work on planning, analysis, and pipeline development for the next generation of cosmology surveys.
My main goal is to understand why the Universe is magnetic. By measuring the polarised radio signals from millions of distant galaxies over the entire sky, I aim to transform our understanding of magnetism in galaxies, clusters and in diffuse intergalactic gas. I also study the ways in which celestial objects change, flicker, flare and explode. I am working to provide a new understanding of the many different populations of transient and variable phenomena, and to develop the novel source-finding and classification algorithms needed to find rare and unusual behaviour in very large data sets. In the next decade, all of this work will culminate in the Square Kilometre Array, a next-generation radio telescope that will answer fundamental questions about the Universe.
Postdoctoral Fellow with Prof. Marten van Kerkwijk & PenMulti-wavelength observations of accreting neutron stars and radio pulsars, pulsar scintillometry, radio interferometry, theories of gravity (tests of GR and alternatives)
Assistant Professor, DADDAA & St. Michael’s CollegePhysical cosmology: cosmic microwave background, large scale structure; millimetre and radio instrumentation, observation and data analysisPh.D. 2009, Princeton
Assistant Professor, Teaching Stream, UTMDiscovery and characterization of exoplanets with radial velocity data; Orbits of exoplanets and brown dwarfs; Demographics and occurrence of giant planets; Planets in binary star systemsPh.D. 2018, Berkeley
My research interests begin with finding and characterizing nearby extrasolar planets using the radial velocity and direct imaging methods. I characterize the planets’ masses and orbits and use large ensembles of planets to study planet demographics and occurrence rates. I am especially interested in the effects of binary star companions on the formation and evolution of exoplanets. Nearly half of all stars like the Sun are binaries, and the gravitational influence of a stellar companion can inhibit the formation or destabilize the orbits of planets orbiting each star. I seek to understand these effects by statistically comparing the occurrence rates and demographics of planets in single vs. binary systems.
My research focuses on theoretical cosmology and statistical methods in cosmology. I am a member of the Atacama Cosmology Telescope collaboration and the Simons Observatory, which are studying the cosmic microwave background (or CMB) at very sharp angular resolution to unlock the secrets of the early universe and the period of star formation. I use this data to answer questions about the structure of the universe, its initial conditions and its eventual fate using data.
I am also a member of the Dark Energy Science Collaboration of LSST, which is a telescope under construction in Northern Chile, and will scan the sky to deliver a vast amount of cosmic transients. I work on the supernova science with LSST to use the photometric data (without a spectrum of the object) to answer questions about dark energy.
I’m passionate about science communication and outreach, and the intersection of art and science – so contact me if you’re interested in collaboration!
Professor, Director of CITAIntergalactic medium, large-scale structure, cosmology, stellar astrophysics, black hole formation and evolution, high-energy astrophysics, galaxy formation, planet formation & survival, visualization, surveys of the cosmosPh.D. 2006, Ohio
I am primarily interested in using a combination of simulations, statistics and observations to answer questions about our Universe. Recently, I have used strong gravitational lensing and Bayesian inference techniques to constrain ultra-light dark matter theories. I have also worked on 21cm cosmology, from a theoretical and experimental perspective. For instance, I have investigated the effect of spin temperature on the relationship between matter and ionized hydrogen during the Epoch of Reionization with MCMC methods.
Professor, Emeritus, UTMMeasurement of stellar spectral energy distributions, observations of stellar convection, high resolution stellar spectroscopy, models of stellar atmospheres.Ph.D. 1972, Chicago
I study the physics in stellar atmospheres. The physics is intriguing because the conditions, which cannot be recreated in our labs, are changing extremely rapidly between the dense stellar interior and the near vacuum of space. However, we have the great advantage of being able to observe directly the brightness and spectrum of the stellar atmosphere. A recent revolutionary observational development is the technique of optical/infrared interferometry that resolves the surfaces of the nearer stars. My approach concentrates on the bright stars that can be observed in the greatest detail, and to interpret those observations using computer models
Ting’s research focuses on near-field cosmology. In particular, she studies the stars in the Milky Way Galaxy and nearby galaxies to understand how they form and to understand the nature of dark matter. She specializes in analyzing large data sets from modern surveys and also performs traditional astronomical observations with optical and near-infrared telescopes. Ting also builds astronomical instruments and contributes to infrastructure work for large-area sky surveys such as the Dark Energy Survey (DES), Dark Energy Spectroscopic Instrument (DESI), and others. She is the founder and leader of the Southern Stellar Stream Spectroscopic Survey (S5), a survey to map streams of stars in the sky visible from the Southern Hemisphere to determine the mass profile of the Milky Way. She is also one of the convenors of the DES Milky Way Working Group, as well as one of the Dark Matter Working Group co-chairs of the Maunakea Spectroscopic Explorer, a 11.25-meter telescope facility dedicated to the next generation spectroscopic surveys.
I was born and raised in Shanghai, China. I received my bachelor degree in astronomy at the University of Science and Technology of China (USTC). My research interests cover a wide range but focus on galaxies. In my spare time, you can see me playing badminton/swimming/jogging. I enjoy traveling in different countries and visiting museums.
Professor, UTSCPlanetary interiors: structure, thermal histories, mantle convection, core-mantle coupling; computational fluid dynamics; high performance computing and numerical modellingPh.D. 1996, York University
I hail from the sunny region of Southern California, where the abundance of dark sky preserves sparked my fascination with the cosmos. My current research is centered on the first observations of massive stars that have had their hydrogen envelopes removed by their binary companions. These stripped stars hold great significance in nearly every realm of astrophysics, spanning from potential sources of gravitational waves to their role in cosmic reionization.
Professor, CITAInterstellar matter, H2: collisional rate ceofficients, Canadian Galactic Plane Survey, infrared imaging: HiRes, MSX and SIRTF, H II regions: Orion, structure, dynamics and chemical abundances, dust: interstellar polarization.Ph.D. 1972, Cambridge
I study astrophysical fluid dynamics with an emphasis on star formation, stellar feedback in the interstellar medium, accretion, and explosive transients, using analytical studies, numerical simulations, and observations. Recent projects include ways to constrain the interactions between star clusters and galaxies, models for star cluster feedback in starburst galaxies, a catalog of young giant star clusters, long-duration modeling of stellar tidal disruptions, new models for supernova shocks and the dynamics of gamma-ray bursts, simulations of massive black hole accretion, fragmentation criteria in star and planet formation, models for protostellar outflows and their interaction with molecular clouds, and models for giant molecular cloud evolution.
My research focuses on reconstructing the formation conditions of the Milky Way using the positions, kinematics, ages, and chemical compositions of pulsating variable stars. I use data from proprietary surveys and publicly available databases, including (but not limited to) the Halo Outskirts With VAriable STars (HOWVAST), the Southern Stellar Stream Spectroscopic Survey (S⁵), and the Gaia mission. These projects are pivotal to lay the groundwork for exploiting the large amount of data upcoming in the next generation of large sky surveys.
I am an observational cosmologist that develops novel instrumentation and analysis techniques for studying the origin, composition, and evolution of the universe. One of such instruments is the Canadian Hydrogen Intensity Mapping Experiment (CHIME), a ground-breaking radio telescope that is mapping the large-scale structure of neutral hydrogen to constrain the expansion history of the universe. Thanks to its unique design and powerful digital backend, CHIME has also become a leading facility for studying the radio transient sky, including the mysterious fast radio bursts (FRBs). I am now focused on the development of CHIME/FRB Outriggers and the Canadian Hydrogen Observatory and Radio-transient Detector (CHORD), next-generation telescope arrays that will provide unprecedented observational capabilities for cosmology and radio transient science.
My primary research interest in theoretical astrophysics is the study of the structure and evolution of planets, accretion discs and stars. The fluid dynamics of these objects is a topic I particularly enjoy exploring, through a combination of analytical and numerical simulation work.
Development and operation of instruments for small satellites such as BRITE Constellation. Properties and evolution of contact binary stars. Techniques for accurate computation of light curves and spectral line profiles of close binary stars, including previously neglected numerical and relativistic effects. Spectroscopy of late-type stars, their rotation and variation
ProfessorExperimental astrophysics and astronomical instrumentation (IR and optical),compact objects (black holes, neutron stars, and X-ray binaries), supernovae and GRBs, supernova remnants, highly-obscured hard X-ray sourcesPh.D Cornell, 2004
My research interest lies primarily in experimental astrophysics and astronomical instrumentation, along with observational studies of various objects. I’ve developed instruments, especially infrared spectrographs (e.g., WIFIS, NIRES, MOSMAS), and am interested in advancing novel devices (e.g., polarization gratings) and techniques for astronomical applications. Observationally, I am more interested in objects with high-energy phenomena, such as supernovae and supernova remnants (both stellar and gaseous), optical transients, ultra-luminous X-ray sources and massive stars.
I use simulations to study gravitational waves signals from inflation and forecasting for the CMB satellite LiteBIRD. I believe it is very important to increase the visibility of minoritized groups, increase diversity, and help make academia a more welcoming and accepting place. Alongside my research, I am also very engaged with public outreach in order to promote enthusiasm for science in youth and advocate for diversity.
I use variable stars to study the nature and evolution of stars. My current interest centers on
pulsating red giants and supergiants, which represent the semi-final stages of stars’ lives, and are poorly-understood, compared with other variable star types. I use archival data, especially from the
American Association of Variable Star Observers (AAVSO), which stretches back for a century or more, edit the Journal of the AAVSO, and otherwise facilitate the contributions of skilled amateurs to
variable star research. I am also engaged in a wide variety of astronomy education and outreach projects.
Assistant Professor, CITAHigh-energy astrophysics. Computational Astrophysics and Numerical Methods. Black Holes. Neutron Stars. Magnetohydrodynamics. Plasma Physics. General Relativity. Solar Physics.
Postdoctoral Fellow with Prof. Jo BovyStar clusters, star and stellar populations, spectral analysis, IFU spectroscopy
As a member in the SDSS-V collaboration, I work mainly on developing and running the spectral analysis pipelines for the Milky Way Mapper (MWM). My research focuses on analysing the chemo-dynamical properties of star clusters and stellar populations in the Milky Way and nearby dwarf galaxies. I also developed a real-time extraction GUI software for a new IFU instrument (IFU-M) designed for use on the Magellan/Clay telescope.
Assistant Professor, DADDAA & Statistical SciencesAstrostatistics and data science with multi-wavelength, large-area surveys; Galactic structure and dynamics; stars and stellar populations; dust and the interstellar medium; galaxy formation and evolution; scalable inference; Monte Carlo samplingPh.D. 2020, Harvard University
I am a Banting-Dunlap Postdoctoral Fellow jointly hosted between the
Department of Statistical Sciences, the Department of Astronomy &
Astrophysics, and the Dunlap Institute. My research focuses on using a
combination of astronomy, statistics, and computer science to combine and
analyze billions of stars and galaxies from wide-field imaging and
spectroscopic surveys to better understand the how galaxies like the Milky
Way form, behave, and evolve over time.
Professor, CITAAstrophysical sources of high energy radiation (Soft Gamma Repeaters, Anomalous X-ray Pulsars, Gamma-Ray Bursts), relativistic fluids and magnetofluids, supernova core collapse, accretion flows and — intermittently — the early universe.Ph.D. 1988 Princeton
Professor, Status OnlyAstrophysical dynamics, structure and dynamics of galaxies and stellar systems, supermassive black holes, extrasolar planets, solar system dynamics, planet formation, comets.Ph.D. 1975, Princeton
Associate Professor, UTSCComposition and Structure of Super-Earths and Mini-Neptunes, Formation processes and chemistry of Rocky Planets, Thermal evolution and Interior Dynamics of Rocky and Icy PlanetsPh.D. 2008, Harvard
The characterisation of the low-mass planets: super-Earths and mini-Neptunes. The former are planets that are mostly solid, either rocky or icy in composition, while the latter posses also a volatile
envelope. My goal is to determine if planets with masses between 1-15 Earth-masses are scaled up versions of Earth, or scaled-down versions of Neptune in terms of their composition, evolution and physical properties.
I am interested in compact objects, stars and binaries, their structure, formation and evolution, and their use to infer fundamental physical properties. My research is based on observations, but includes interpretation, theory and numerical modelling as required. Currently, I am trying to use neutron stars to study physics in conditions out of reach of terrestrial experiment, and to solve associated astronomical puzzles. I’ve become particularly intrigued by the possibilities of extremely high resolution astrometry offered by pulsar scintillation.
Currently a first year PhD student, I obtained my BSc in Earth Science (Geophysics specialization) from University of Waterloo in 2015. Afterwards, I briefly worked in engineering consulting before spending several years working in tech, and am now happily dedicated to my passion for astrophysics.
My primary research interests involve the Large Scale Structure (LSS) in the Universe. By studying its properties and evolution, we can make firm statements about the physical processes which must have been active. Despite — or perhaps because of — its size, the LSS is difficult to observe, and specialized instruments and surveys are required to study it. I work on two such instruments, the South Pole Telescope (SPT), and the Canadian Hydrogen Intensity Mapping Experiment (CHIME)
I study the interiors of planets, the structure of proto-planetary disks and circumstellar dusty debris disks, the organization of planetary systems, the formataion history of moons and satellites in the solar system, and the evolution of the Kuiper Belt. Recently, I have been engaged in understanding the Kepler planetary systems, in terms of their internal structure, their dynamics and origins.
My research focuses on many aspects of high-redshift galaxy clusters. I am involved in a number of large optical/IR imaging surveys to create large samples of clusters up to redshift of 2. These provide cluster samples for projects in galaxy and cluster evolution and observational cosmology. These include spectroscopic surveys of cluster galaxies, the evolution and formation of clusters, the roles of environments in the evolution of galaxies, the morphology of galaxies in clusters, gravitational lensing, and the applications of galaxy clusters to cosmology. I also work on photometric redshift
techniques, and their applications to galaxy evolution studies involving large galaxy photometric catalogues.