7 papers
(An)Isotropy in Pantheon+ and Type Ia supernova samples: intrinsic limits of directional tests
Antonio Quintana-Estellés, Pilar Ruiz-Lapuente
The use of methods that investigate the value of the Hubble constant H in different patches (60 ^ size) across the sky to probe the statistical isotropy of the Universe…
"SNe Ia twins" in the Hubble flow, and the determination of H0
Pilar Ruiz-Lapuente, Antonio Quintana-Estellés, Jonay I. González Hernández +1
We have applied our approach of using ''SNe Ia twins''in the Hubble flow to obtain distances to SNe Ia at z 0.015 and derive H. Our results, taking a single step between…
Unveiling the nature of SN 2022jli: The first double-peaked stripped-envelope supernova showing periodic undulations and dust emission at late times
Régis Cartier, Carlos Contreras, Maximilian Stritzinger +6
We present optical and infrared observations from maximum light until around +800 days of supernova (SN) 2022jli, a peculiar stripped-envelope (SE) SN showing two maxima, each one…
Supernova Ia Remnants with M dwarf surviving companions
Kuo-Chuan Pan, Pilar Ruiz-Lapuente, Jonay I. González Hernández
We study the possibility that Type Ia supernovae might be produced by binary systems where the companion of the exploding white dwarf is an M-dwarf star. Such companion would appea…
The Science of the Einstein Telescope
Adrian Abac, Raul Abramo, Simone Albanesi +485
Einstein Telescope (ET) is the European project for a gravitational-wave (GW) observatory of third-generation. In this paper we present a comprehensive discussion of its science ob…
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533
The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…