1k citations · 3.7k across the 27 of their papers we have counts for
29 papers
Dark Energy Survey Year 6 Results: fast and interpretable posterior predictive checks for correlated cosmic probes
C. Doux, J. Muir, A. Ferté +59
We present a fast and numerically stable framework for conducting posterior predictive distribution (PPD) tests of internal consistency in correlated cosmological probes. Our metho…
Disentangling cosmic distance tensions with early and late dark energy
Tanisha Jhaveri, Tanvi Karwal, Thomas Crawford +4
Recent cosmological data reveal tension between parameters inferred from measurements of the cosmic microwave background (CMB), baryon acoustic oscillations (BAO), and supernovae (…
PackForcing: Short Video Training Suffices for Long Video Sampling and Long Context Inference
Xiaofeng Mao, Shaohao Rui, Kaining Ying +4
Autoregressive video diffusion models have demonstrated remarkable progress, yet they remain bottlenecked by intractable linear KV-cache growth, temporal repetition, and compoundin…
Picture an Astronomer: Best Practices for Retaining Talent in Astrophysics
Ava Polzin, Katherine E. Whitaker, C. Megan Urry +85
Women are consistently underrepresented in astrophysics yet are simultaneously subject to disproportionate attrition at every career stage. This disparity between demonstrated effi…
Going beyond : fast inference of the matter power spectrum from weak-lensing surveys
Cyrille Doux, Tanvi Karwal
Weak lensing surveys are often summarized by constraints on the derived parameter , obscuring the rich scale and redshift information encoded in…
Bayesian and frequentist perspectives agree on dynamical dark energy
Laura Herold, Tanvi Karwal
Baryon acoustic oscillation data from the Dark Energy Spectroscopic Instrument (DESI) show evidence of a deviation from a cosmological constant within a Bayesian analysis. In t…
Turning a negative neutrino mass into a positive optical depth
Tanisha Jhaveri, Tanvi Karwal, Wayne Hu
Under CDM, recent baryon acoustic oscillation (BAO) distance measures from DESI, which favor a low matter density , are in moderate tension with cosmic microwave bac…
Uniting the Observed Dynamical Dark Energy Preference with the Discrepancies in and Across Cosmological Probes
Xianzhe TZ Tang, Dillon Brout, Tanvi Karwal +3
Recent results from Type Ia Supernovae (SNe), baryon acoustic oscillations (BAO), and the cosmic microwave background (CMB) indicate 1) potentially discrepant measurements of the m…
Procoli: Profiles of cosmological likelihoods
Tanvi Karwal, Yashvi Patel, Alexa Bartlett +3
Frequentist profile likelihoods have seen a resurgence in cosmology, offering an alternative to Bayesian methods as they can circumvent the impact of prior-volume effects. This pap…
The Cosmology of Dark Energy Radiation
Kim V. Berghaus, Tanvi Karwal, Vivian Miranda +1
In this work, we quantify the cosmological signatures of dark energy radiation -- a novel description of dark energy, which proposes that the dynamical component of dark energy is…
An Attractive Proposal for Resolving the Hubble Tension: Dynamical Attractors that Unify Early and Late Dark Energy
Omar F. Ramadan, Tanvi Karwal, Jeremy Sakstein
Early dark energy is a promising potential resolution of the Hubble tension. Unfortunately, many models suffer from the need to fine-tune their initial conditions to ensure that th…
The Ups and Downs of Early Dark Energy solutions to the Hubble tension: a review of models, hints and constraints circa 2023
Vivian Poulin, Tristan L. Smith, Tanvi Karwal
We review the current status of Early Dark Energy (EDE) models proposed to resolve the "Hubble tension", the discrepancy between "direct" measurements of the current expansion rate…
Role of the Hubble Scale in the Weak Lensing vs. CMB Tension
Lucas F. Secco, Tanvi Karwal, Wayne Hu +1
We explore a re-parameterization of the lensing amplitude tension between weak lensing (WL) and cosmic microwave background (CMB) data and its implications for a joint resolution w…
Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies
Elcio Abdalla, Guillermo Franco Abellán, Amin Aboubrahim +200
In this paper we will list a few important goals that need to be addressed in the next decade, also taking into account the current discordances between the different cosmological…
Thermal Friction as a Solution to the Hubble and Large-Scale Structure Tensions
Kim V. Berghaus, Tanvi Karwal
Thermal friction offers a promising solution to the Hubble and the large-scale structure (LSS) tensions. This additional friction acts on a scalar field in the early universe and e…
Chameleon Early Dark Energy and the Hubble Tension
Tanvi Karwal, Marco Raveri, Bhuvnesh Jain +2
Early dark energy (EDE) offers a particularly interesting theoretical approach to the Hubble tension, albeit one that introduces its own set of challenges, including a new `why the…
Cosmology Intertwined IV: The Age of the Universe and its Curvature
Eleonora Di Valentino, Luis A. Anchordoqui, Ozgur Akarsu +88
A precise measurement of the curvature of the Universe is of primeval importance for cosmology since it could not only confirm the paradigm of primordial inflation but also help in…
Cosmology Intertwined III: and
Eleonora Di Valentino, Luis A. Anchordoqui, Ozgur Akarsu +89
The standard Cold Dark Matter cosmological model provides a wonderful fit to current cosmological data, but a few tensions and anomalies became statistically significant with t…
Cosmology Intertwined II: The Hubble Constant Tension
Eleonora Di Valentino, Luis A. Anchordoqui, Ozgur Akarsu +90
The current cosmological probes have provided a fantastic confirmation of the standard Cold Dark Matter cosmological model, that has been constrained with unprecedented accurac…
Cosmology Intertwined I: Perspectives for the Next Decade
Eleonora Di Valentino, Luis A. Anchordoqui, Ozgur Akarsu +89
The standard Cold Dark Matter cosmological model provides an amazing description of a wide range of astrophysical and astronomical data. However, there are a few big open quest…
The First Three Seconds: a Review of Possible Expansion Histories of the Early Universe
Rouzbeh Allahverdi, Mustafa A. Amin, Asher Berlin +23
It is commonly assumed that the energy density of the Universe was dominated by radiation between reheating after inflation and the onset of matter domination 54,000 years later. W…
Thermal Friction as a Solution to the Hubble Tension
Kim V. Berghaus, Tanvi Karwal
A new component added to the standard model of cosmology that behaves like a cosmological constant at early times and then dilutes away as radiation or faster can resolve the Hubbl…
Alleviating the and anomalies with a decaying dark matter model
Kanhaiya L. Pandey, Tanvi Karwal, Subinoy Das
The Hubble tension between the CDM-model-dependent prediction of the current expansion rate using Planck data and direct, model-independent measurements in the local unive…
Early Dark Energy Can Resolve The Hubble Tension
Vivian Poulin, Tristan L. Smith, Tanvi Karwal +1
Early dark energy (EDE) that behaves like a cosmological constant at early times (redshifts ) and then dilutes away like radiation or faster at later times can solve…