From the 1 of 6 linked papers with an AI index.
6 papers
Early Exploration of the Scientific Discovery Space for the Habitable Worlds Observatory
Courtney D. Dressing, Danica Adams, Evelyne Alecian +324
The paper summarizes 70 science cases for the proposed NASA Habitable Worlds Observatory, outlining the observational needs across four scientific pillars and detailing required ca…
Morphological Bias: How Ellipticals and Spirals Trace the Cosmic Web Differently
Paula S. Ferreira, Carlos A. P. Bengaly, Renyue Cen
We present a data-driven measurement of galaxy bias and scale-dependent relative bias for elliptical and spiral galaxies using angular auto- and cross-power spectra from DES and DE…
Detection of persistent helium absorption in the 91bg-like type Ia Supernova 2022an
Ping Chen, Avishay Gal-Yam, Subo Dong +14
We present optical and near-infrared observations of the fast-declining Type Ia supernova (SN Ia) 2022an. The photometric and spectroscopic properties identify it as a standard 91b…
Where Galaxies Point: First Measurement of the Large-Scale Axial Intrinsic Alignment
Pedro da Silveira Ferreira, Rafael Oliveira Ramos, Paula S. Ferreira +5
We report evidence for large-scale axial intrinsic alignment (LAIA): a coherent axis shared by galaxies and cosmic-web filaments. Applying an orientation-field estimator to Dark En…
Extending Hubble into the 2030s to Resolve the Physics of LyC Escape
Cody Carr, Stephan McCandliss, Michelle Berg +6
Current observations with the James Webb Space Telescope (JWST) suggest that star-forming galaxies produce enough ionizing (LyC; nm) photons to drive cosmic reionization…
Recovering the infall mass for Milky Way satellite galaxy Sextans
Tingting Tian, Jiang Chang, Go Ogiya +2
Understanding the formation and evolution of the Milky Way (MW) requires detailed knowledge of its satellite galaxies. In this study, we focus on the Sextans dwarf spheroidal (dSph…