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Relative intrinsic scatter in hierarchical Type Ia supernova siblings analyses: Application to SNe 2021hpr, 1997bq & 2008fv in NGC 3147
Sam M. Ward, Stephen Thorp, Kaisey S. Mandel +22
We present Young Supernova Experiment photometry of SN 2021hpr, the third Type Ia supernova sibling to explode in the Cepheid calibrator galaxy, NGC 3147. Siblings are usef…
The Hubble constant from two sibling Type Ia supernovae in the nearby galaxy NGC 4414: SN 1974G and SN 2021J
Eulalia Gallego-Cano, Luca Izzo, Carlos Dominguez-Tagle +4
Having two "sibling" Type Ia supernovae (SNe Ia) in the same galaxy offers additional advantages in reducing a variety of systematic errors involved in estimating the Hubble consta…
Hubble constant and nuclear equation of state from kilonova spectro-photometric light curves
M. A. Pérez-García, L. Izzo, D. Barba +17
The merger of two compact objects of which at least one is a neutron star is signalled by transient electromagnetic emission in a kilonova (KN). This event is accompanied by gravit…
Unveiling the Universe with Emerging Cosmological Probes
Michele Moresco, Lorenzo Amati, Luca Amendola +22
The detection of the accelerated expansion of the Universe has been one of the major breakthroughs in modern cosmology. Several cosmological probes (CMB, SNe Ia, BAO) have been stu…
A new measurement of the Hubble constant using Type Ia supernovae calibrated with surface brightness fluctuations
N. Khetan, L. Izzo, M. Branchesi +15
We present a new calibration of the peak absolute magnitude of SNe Type Ia based on the Surface Brightness Fluctuations (SBF) method, aimed at measuring the value of the Hubble con…
Gravitational lensing detection of an extremely dense environment around a galaxy cluster
Mauro Sereno, Carlo Giocoli, Luca Izzo +8
Galaxy clusters form at the highest density nodes of the cosmic web. The clustering of massive halos is enhanced relative to the general mass distribution and matter beyond the vir…
PSZ2LenS. Weak lensing analysis of the Planck clusters in the CFHTLenS and in the RCSLenS
Mauro Sereno, Giovanni Covone, Luca Izzo +3
The possibly unbiased selection process in surveys of the Sunyaev Zel'dovich effect can unveil new populations of galaxy clusters. We performed a weak lensing analysis of the PSZ2L…
New measurements of from gamma-ray bursts
Luca Izzo, Marco Muccino, Elena Zaninoni +2
Context: Data from cosmic microwave background radiation (CMB), baryon acoustic oscillations (BAO), and supernovae Ia (SNe-Ia) support a constant dark energy equation of state with…
A Free-Form Lensing Grid Solution for A1689 with New Mutiple Images
Jose M. Diego, T. Broadhurst, N. Benitez +6
Hubble Space Telescope imaging of the galaxy cluster Abell 1689 has revealed an exceptional number of strongly lensed multiply-imaged galaxies, including high-redshift candidates.…
The Gamma Ray Bursts Hubble diagram
S. Capozziello, V. F. Cardone, M. G. Dainotti +3
Thanks to their enormous energy release, Gamma Rays Bursts (GRBs) have recently attracted a lot of interest to probe the Hubble diagram (HD) deep into the matter dominated era and…
Cosmographic applications of Gamma Ray Bursts
Luca Izzo, Orlando Luongo, Salvatore Capozziello
In this work we present some applications about the use of the so-called Cosmography with GRBs. In particular, we try to calibrate the Amati relation by using the luminosity distan…
A cosmological independent calibration of the Ep,i-Eiso correlation for Gamma Ray Bursts
Salvatore Capozziello, Luca Izzo
The relation connecting the emitted isotropic energy and the rest-frame peak energy of the \nuFνspectra of Gamma-Ray Bursts (the Amati relation), strictly depends on the cosmologic…
Extending the Hubble diagram by gamma ray bursts
L. Izzo, S. Capozziello, G. Covone +1
A new method to constrain the cosmological equation of state is proposed by using combined samples of gamma-ray bursts (GRBs) and supernovae (SNeIa). The Chevallier-Polarski-Linder…
Testing Dark Energy models vs CDM Cosmology by Supernovae and Gamma Ray Bursts
L. Izzo, S. Capozziello, G. Covone +1
A new method to constrain the cosmological equation of state is proposed by using combined samples of gamma-ray bursts (GRBs) and supernovae (SNeIa). The Chevallier-Polarski-Linder…
Cosmography by GRBs : Gamma Ray Bursts as possible distance indicators
S. Capozziello, L. Izzo
A new method to constrain the cosmological equation of state is proposed by using combined samples of gamma-ray bursts (GRBs) and supernovae (SNeIa). The Chevallier-Polarski-Linder…