A5106695876- Gamma-ray bursts and supernovae
- Astronomy and Astrophysical Research
- Astrophysics and Cosmic Phenomena
- Pulsars and Gravitational Waves Research
- Stellar, planetary, and galactic studies
- Radio Astronomy Observations and Technology
- Galaxies: Formation, Evolution, Phenomena
Laboratoire de Physique Nucléaire et de Hautes Énergies
2023
Centre National de la Recherche Scientifique
2023
Institut National de Physique Nucléaire et de Physique des Particules
2023
GANIL
2000
Context. The unprecedented statistics of detected Type Ia supernovae (SNe Ia) brought by the Zwicky Transient Facility (ZTF) enable us to probe impact large-scale structure (LSS) on properties these objects. Aims. goal this paper is explore possible under-dense part LSS intrinsic SALT2 light-curve SNe and uncover biases in SN analyses. Methods. With a volume-limited selection ZTF-Cosmo-DR2 overlapping with SDSS-DR7 survey footprint, we investigated distribution their regard voids galaxy...
The Vera C. Rubin Observatory's Legacy Survey of Space and Time is forecast to collect a large sample Type Ia supernovae (SNe Ia) that could be instrumental in unveiling the nature Dark Energy. feat, however, requires measuring two components Hubble diagram - distance modulus redshift with high degree accuracy. Distance estimated from SNe parameters extracted light curve fits, where average quality curves primarily driven by survey such as cadence number visits per band. An optimal observing...
Type Ia supernova (SN Ia) cosmology relies on the estimation of light-curve parameters to derive precision distances, which are used infer cosmological such as H 0 , Ω M Λ and w . The empirical SALT2 modeling that only two parameters, a stretch x 1 color c has been by community for almost decades. We study ability model fit nearly 3000 cosmology-grade SN light curves from second release Zwicky Transient Facility (ZTF) science working group. While ZTF data were not train SALT2, algorithm...
The Vera C. Rubin Observatory's Legacy Survey of Space and Time is forecast to collect a large sample Type Ia supernovae (SNe Ia) that could be instrumental in unveiling the nature Dark Energy. feat, however, requires measuring two components Hubble diagram - distance modulus redshift with high degree accuracy. Distance estimated from SNe parameters extracted light curve fits, where average quality curves primarily driven by survey such as cadence number visits per band. An optimal observing...