Better support for collaborations preparing for large-scale projects: the case study of the LSST Science Collaborations Astro2020 APC White Paper

Posted by klaurent Stanford

Kavli Affiliate: Patricia Burchat | Summary:Through the lens of the LSST Science Collaborations’ experience, this paper advocates for new and improved ways to fund large, complex collaborations at the interface of data science and astrophysics as they work in preparation for and on peta-scale, complex surveys, of which LSST is a prime example. We advocate […]


Continue.. Better support for collaborations preparing for large-scale projects: the case study of the LSST Science Collaborations Astro2020 APC White Paper

Obliterating Thingness: An Introduction to the “What” and the “So What” of Quantum Physics

Posted by klaurent Chicago

Kavli Affiliate: Kathryn Schaffer | Summary:This essay provides a short introduction to the ideas and potential implications of quantum physics for scholars in the arts, humanities, and social sciences. Quantum-inspired ideas pepper current discourse in all of these fields, in ways that range from playful metaphors to sweeping ontological claims. We explain several of the […]


Continue.. Obliterating Thingness: An Introduction to the “What” and the “So What” of Quantum Physics

New constraints on the mass bias of galaxy clusters from the power spectra of the thermal Sunyaev-Zeldovich effect and cosmic shear

Posted by klaurent Tokyo

Kavli Affiliate: Chiaki Hikage | Summary:Thermal Sunyaev-Zeldovich (tSZ) power spectrum is a powerful probe of the present-day amplitude of matter density fluctuations, and has been measured up to $ellapprox 10^3$ from the it Planck data. The largest systematic uncertainty in the interpretation of this data is the so-called "mass bias" parameter $B$, which relates the […]


Continue.. New constraints on the mass bias of galaxy clusters from the power spectra of the thermal Sunyaev-Zeldovich effect and cosmic shear

The Simons Observatory: Astro2020 Decadal Project Whitepaper

Posted by klaurent Stanford

Kavli Affiliate: Ethan D. Karpel | First 5 Authors: The Simons Observatory Collaboration, Maximilian H. Abitbol, Shunsuke Adachi, Peter Ade, James Aguirre | Summary: The Simons Observatory (SO) is a ground-based cosmic microwave background (CMB) experiment sited on Cerro Toco in the Atacama Desert in Chile that promises to provide breakthrough discoveries in fundamental physics, […]


Continue.. The Simons Observatory: Astro2020 Decadal Project Whitepaper

The Simons Observatory: Astro2020 Decadal Project Whitepaper

Posted by klaurent Stanford

Kavli Affiliate: Ethan Karpel | Summary:The Simons Observatory (SO) is a ground-based cosmic microwave background (CMB) experiment sited on Cerro Toco in the Atacama Desert in Chile that promises to provide breakthrough discoveries in fundamental physics, cosmology, and astrophysics. Supported by the Simons Foundation, the Heising-Simons Foundation, and with contributions from collaborating institutions, SO will […]


Continue.. The Simons Observatory: Astro2020 Decadal Project Whitepaper

Properties for the Frechet Mean in Billera-Holmes-Vogtmann Treespace

Posted by klaurent Stanford

Kavli Affiliate: Keith Thompson | Summary:The Billera-Holmes-Vogtmann (BHV) space of weighted trees can be embedded in Euclidean space, but the extrinsic Euclidean mean often lies outside of treespace. Sturm showed that the intrinsic Frechet mean exists and is unique in treespace. This Frechet mean can be approximated with an iterative algorithm, but bounds on the […]


Continue.. Properties for the Frechet Mean in Billera-Holmes-Vogtmann Treespace

IDEAS: Immersive Dome Experiences for Accelerating Science

Posted by klaurent Chicago

Kavli Affiliate: Mark SubbaRao | Summary:Astrophysics lies at the crossroads of big datasets (such as the Large Synoptic Survey Telescope and Gaia), open source software to visualize and interpret high dimensional datasets (such as Glue, WorldWide Telescope, and OpenSpace), and uniquely skilled software engineers who bridge data science and research fields. At the same time, […]


Continue.. IDEAS: Immersive Dome Experiences for Accelerating Science

Cosmic Explorer: The U.S. Contribution to Gravitational-Wave Astronomy beyond LIGO

Posted by klaurent MIT

Kavli Affiliate: Rainer Weiss | Summary:This white paper describes the research and development needed over the next decade to realize "Cosmic Explorer," the U.S. node of a future third-generation detector network that will be capable of observing and characterizing compact gravitational-wave sources to cosmological redshifts. | Search Query: arXiv Query: search_query=au:”Weiss Rainer”&id_list=&start=0&max_results=10Read More


Continue.. Cosmic Explorer: The U.S. Contribution to Gravitational-Wave Astronomy beyond LIGO

Shear measurement bias due to spatially varying spectral energy distributions in galaxies

Posted by klaurent Stanford

Kavli Affiliate: Patricia R. Burchat | First 5 Authors: Sowmya Kamath, Joshua E. Meyers, Patricia R. Burchat, , | Summary: Galaxy color gradients – i.e., spectral energy distributions that vary across the galaxy profile – will impact galaxy shape measurements when the modeled point spread function (PSF) corresponds to that for a galaxy with spatially […]


Continue.. Shear measurement bias due to spatially varying spectral energy distributions in galaxies