Format results
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Harnessing information from higher order statistics in cosmology - k-nearest neighbor (kNN) distributions
Arka Banerjee - Indian Institute of Science Education and Research Pune
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Mapping the Milky Way in Six Dimensions and its Rotation Curve up to the edge of the halo
Subha Majumdar - Tata Institute of Fundamental Research (TIFR)
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Mapping Alien Worlds: from Infernal to Habitable Worlds
Lisa Dang - University of Waterloo
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Cautionary Tales from the Local Universe
Sarah Gallagher - Canadian Space Agency
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Tracing the mass distribution and assembly of galaxy clusters with ICL and dynamical indicators
Syeda Lammim Ahad - Waterloo Centre for Astrophysics
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Stellar Dynamics in a Fluctuating Interstellar Medium
Shaunak Modak
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Cosmology and astrophysics from the combination of CMB and galaxy lensing
Aaron Ouellette - University of Illinois
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Harnessing information from higher order statistics in cosmology - k-nearest neighbor (kNN) distributions
Arka Banerjee - Indian Institute of Science Education and Research Pune
Current and upcoming cosmological surveys will map the observable Universe with increasingly greater precision. To extract the maximum information about cosmology from these surveys, especially from smaller scales, it is imperative to move beyond traditional 2-point analyses. In this talk, I will… -
Mapping the Milky Way in Six Dimensions and its Rotation Curve up to the edge of the halo
Subha Majumdar - Tata Institute of Fundamental Research (TIFR)
The interpretation of dark matter detection experiments crucially depends on our understanding of the phase space of dark matter in the Milky Way (MW) locally, and up to the edge of the dark matter halo. A precise construction of the `entire' MW rotation curve (RC) is paramount in estimating… -
The recipe for the degrees of freedom
One of the most fundamental questions that can be asked when studying any physical theory is: What are its true degrees of freedom? These modes are the building blocks of theories, which can evolve and be observed, shaping how a theory connects to the physical Universe. Finding them, however, is not… -
Reaching diffraction-limited localization with coherent PTAs
Anna Tsai - CITA
Current pulsar timing array (PTA) analyses do not take full advantage of pulsar distance information, thereby missing out on improved angular resolution and on a potential factor-of-two gain in detection sensitivity for individual gravitational-wave (GW) sources. In this work, we investigate the… -
Mapping Alien Worlds: from Infernal to Habitable Worlds
Lisa Dang - University of Waterloo
Although we will never get the same level of details for exoplanets as we do for Solar System bodies, the large diversity of exoplanets revealed by exoplanet hunting missions, e.g. Kepler and TESS, provide thousands of study cases to refine formation and evolution pathways as well as theories of how… -
Cautionary Tales from the Local Universe
Sarah Gallagher - Canadian Space Agency
Studying low-redshift analogues of phenomena in the early Universe is an established method for getting a closer look at intriguing physics. However, determining when a local analogue functions well to represent distant systems, and what limitations need to be kept in mind, can be challenging… -
The puzzling emergence of galaxies and black holes in the first billion years
Pratika Dayal - CITA
Galaxy formation in the first billion years marks a time of great upheaval in our cosmic history: the first sources of light in the Universe, these galaxies ended the 'cosmic dark ages' and produced the first photons that could break apart the hydrogen atoms suffusing all of space starting the… -
Tracing the mass distribution and assembly of galaxy clusters with ICL and dynamical indicators
Syeda Lammim Ahad - Waterloo Centre for Astrophysics
Galaxy clusters assemble hierarchically, and their present-day dynamical state encodes information about cluster formation timescales and mass distribution. The diffuse intracluster light (ICL), a fossil record of tidal stripping and accretion, offers a complementary probe that is sensitive to a… -
Cosmological Inference from LSS in DESI
Mark Maus
The Dark Energy Spectroscopic Instrument (DESI) is the largest galaxy redshift survey to date, aiming to catalog ~63 million galaxies over 17000 deg^2 of the sky by the end of 8 years of observation. The DR1 analyses were completed in 2024 with exciting new constraints on cosmological parameters… -
Stellar Dynamics in a Fluctuating Interstellar Medium
Shaunak Modak
The interstellar medium (ISM) plays an important role in sculpting the structure of our Galaxy: in addition to being the birthplaces of stars, ISM substructures have the capacity to significantly perturb stellar orbits. However, conventional stellar-dynamical studies often rely on idealized toy… -
Astro-particle Phenomena from Dark Matter and Cosmic Rays in MHD Galaxy Formation Simulations
Isabel Sands - Caltech
Over the last few decades, observations of diffuse gamma-ray emission in the Milky Way– in particular, the excess of GeV gamma-rays detected in the Milky Way’s galactic center, and the massive gamma-ray bubbles (the “Fermi bubbles”) centered about the Milky Way’s disk– have challenged astrophysical… -
Cosmology and astrophysics from the combination of CMB and galaxy lensing
Aaron Ouellette - University of Illinois
Weak lensing of galaxies and of the CMB provide direct probes of the cosmic matter density field, but are sensitive to different redshift ranges and different survey systematics. The combination of these probes provides a way to calibrate systematics and test LCDM across cosmic time. I will talk…