#type ia supernovae
topictype ia supernovae
3 papers · 1 filter
astro-ph.CO2026
Model-Independent Indication for a Localized Anomaly in the Late-Time Expansion History
Shibendu Gupta Choudhury, Purba Mukherjee, Eleonora Di Valentino +1
Using a model‑independent spline reconstruction of distances from DESI BAO data and DES supernovae, the authors find a localized ~3.5σ deviation from the Planck ΛCDM expansion hist…
astro-ph.GA2026
The JADES Transient Survey II: Volumetric Supernova Rates out to z~5
Christa DeCoursey, Christian Vassallo, Louis-Gregory Strolger +27
The paper uses JWST/NIRCam observations from the JADES Transient Survey to measure the first volumetric rates of core‑collapse and Type Ia supernovae at redshifts 2–5, employing ph…
astro-ph.CO2026
Reconstructing the kinematics of Laniakea using Type Ia Supernovae
Francesco Sorrenti, Erick Pastén, Leonardo Giani
The paper presents a method to infer the expansion and shear of the Laniakea supercluster by analyzing monopole, dipole, and quadrupole components of Type Ia supernova luminosity d…