Constraints on the Hubble constant from Supernova Refsdal’s reappearance

Kavli Affiliate: Kaisey Mandel | First 5 Authors: Patrick L. Kelly, Steven Rodney, Tommaso Treu, Masamune Oguri, Wenlei Chen | Summary: The gravitationally lensed Supernova Refsdal appeared in multiple images, produced through gravitational lensing by a massive foreground galaxy cluster. After the supernova appeared in 2014, lens models of the galaxy cluster predicted an additional […]


Continue.. Constraints on the Hubble constant from Supernova Refsdal’s reappearance

Constraints on the Hubble constant from Supernova Refsdal’s reappearance

Kavli Affiliate: Kaisey Mandel | First 5 Authors: Patrick L. Kelly, Steven Rodney, Tommaso Treu, Masamune Oguri, Wenlei Chen | Summary: The gravitationally lensed Supernova Refsdal appeared in multiple images, produced through gravitational lensing by a massive foreground galaxy cluster. After the supernova appeared in 2014, lens models of the galaxy cluster predicted an additional […]


Continue.. Constraints on the Hubble constant from Supernova Refsdal’s reappearance

A 1.55 R$_{oplus}$ habitable-zone planet hosted by TOI-715, an M4 star near the ecliptic South Pole

Kavli Affiliate: Christopher J. Burke | First 5 Authors: Georgina Dransfield, Mathilde Timmermans, Amaury H. M. J. Triaud, Martín Dévora-Pajares, Christian Aganze | Summary: A new generation of observatories is enabling detailed study of exoplanetary atmospheres and the diversity of alien climates, allowing us to seek evidence for extraterrestrial biological and geological processes. Now is […]


Continue.. A 1.55 R$_{oplus}$ habitable-zone planet hosted by TOI-715, an M4 star near the ecliptic South Pole

Anderson self-duality of topological modular forms, its differential-geometric manifestations, and vertex operator algebras

Kavli Affiliate: Yuji Tachikawa | First 5 Authors: Yuji Tachikawa, Mayuko Yamashita, , , | Summary: Inspired by consideration in heterotic string theory, we construct a morphism of spectra from $mathrm{KO}((q))/mathrm{TMF}$ to $Sigma^{-20}I_{mathbb{Z}} mathrm{TMF}$, which we show to be an isomorphism and to implement the Anderson self-duality of $mathrm{TMF}$. We will use this to factor […]


Continue.. Anderson self-duality of topological modular forms, its differential-geometric manifestations, and vertex operator algebras

Anderson self-duality of topological modular forms, its differential-geometric manifestations, and vertex operator algebras

Kavli Affiliate: Yuji Tachikawa | First 5 Authors: Yuji Tachikawa, Mayuko Yamashita, , , | Summary: Inspired by consideration in heterotic string theory, we construct a morphism of spectra from $mathrm{KO}((q))/mathrm{TMF}$ to $Sigma^{-20}I_{mathbb{Z}} mathrm{TMF}$, which we show to be an isomorphism and to implement the Anderson self-duality of $mathrm{TMF}$. We will use this to factor […]


Continue.. Anderson self-duality of topological modular forms, its differential-geometric manifestations, and vertex operator algebras

Anderson self-duality of topological modular forms, its differential-geometric manifestations, and vertex operator algebras

Kavli Affiliate: Yuji Tachikawa | First 5 Authors: Yuji Tachikawa, Mayuko Yamashita, , , | Summary: Inspired by consideration in heterotic string theory, we construct a morphism of spectra from $mathrm{KO}((q))/mathrm{TMF}$ to $Sigma^{-20}I_{mathbb{Z}} mathrm{TMF}$, which we show to be an isomorphism and to implement the Anderson self-duality of $mathrm{TMF}$. We will use this to factor […]


Continue.. Anderson self-duality of topological modular forms, its differential-geometric manifestations, and vertex operator algebras

Anderson self-duality of topological modular forms, its differential-geometric manifestations, and vertex operator algebras

Kavli Affiliate: Yuji Tachikawa | First 5 Authors: Yuji Tachikawa, Mayuko Yamashita, , , | Summary: We construct a morphism of spectra from $mathrm{KO}((q))/mathrm{TMF}$ to $Sigma^{-20}I_{mathbb{Z}} mathrm{TMF}$, which we show to be an equivalence and to implement the Anderson self-duality of $mathrm{TMF}$. This morphism is then used to define another morphism from $mathrm{TMF}$ to $Sigma^{-20}I_{mathbb{Z}}(mathrm{MSpin}/mathrm{MString})$, […]


Continue.. Anderson self-duality of topological modular forms, its differential-geometric manifestations, and vertex operator algebras

Quantifying Uncertainties on the Tip of the Red Giant Branch Method

Kavli Affiliate: Wendy L. Freedman | First 5 Authors: Barry F. Madore, Wendy L. Freedman Kayla A. Owens, In Sung Jang, , | Summary: We present an extensive grid of numerical simulations quantifying the uncertainties in measurements of the Tip of the Red Giant Branch (TRGB). These simulations incorporate a luminosity function composed of 2 […]


Continue.. Quantifying Uncertainties on the Tip of the Red Giant Branch Method

The impact of UV variability on the abundance of bright galaxies at $z geq 9$

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Xuejian Shen, Mark Vogelsberger, Michael Boylan-Kolchin, Sandro Tacchella, Rahul Kannan | Summary: JWST observations have revealed a population of galaxies bright enough that potentially challenge standard galaxy formation models in the $Lambda$CDM cosmology. Using a minimal empirical framework, we investigate the influence of variability on the rest-frame […]


Continue.. The impact of UV variability on the abundance of bright galaxies at $z geq 9$