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The Hubble constant, $H_0$, tension is the tension among the local probes, Supernovae Ia, and the Cosmic Microwave Background Radiation. It has been almost a decade, and this tension still puzzles the community. Here, we add intermediate…

高能天体物理现象 · 物理学 2024-07-18 Shahnawaz A. Adil , Maria G. Dainotti , Anjan A. Sen

Several correlations among Gamma-Ray Bursts (GRBs) quantities, both in the prompt and afterglow emissions, have been established during the last decades, thus enabling the standardization of GRBs as cosmological probes. Since GRBs are…

宇宙学与河外天体物理 · 物理学 2024-10-29 Giada Bargiacchi , Maria Giovanna Dainotti , Salvatore Capozziello

Gamma-ray bursts (GRBs) detected at high redshift can be used to trace the cosmic expansion history. However, the calibration of their luminosity distances is not an easy task in comparison to Type Ia Supernovae (SNeIa). To calibrate these…

宇宙学与河外天体物理 · 物理学 2022-04-20 Celia Escamilla-Rivera , Maryi Carvajal , Cristian Zamora , Martin Hendry

Gamma-Ray Bursts (GRBs), being observed at high redshift (z = 9.4), vital to cosmological studies and investigating Population III stars. To tackle these studies, we need correlations among relevant GRB variables with the requirement of…

高能天体物理现象 · 物理学 2023-08-16 Maria G. Dainotti , Ritwik Sharma , Aditya Narendra , Delina Levine , Enrico Rinaldi , Agnieszka Pollo , Gopal Bhatta

The LambdaCDM model is the most commonly accepted framework in modern cosmology. However, the local measurements of the Hubble constant, H0, via the Supernovae Type Ia (SNe Ia) calibrated on Cepheids provide a value which is in significant…

宇宙学与河外天体物理 · 物理学 2023-11-28 M. G. Dainotti , B. De Simone , G. Montani , E. Rinaldi , M. Bogdan , K. M. Islam , A. Gangopadhyay

Context. Gamma-ray bursts (GRBs) reach redshifts beyond Type Ia supernovae (SNe Ia) and can extend distance measurements into the early Universe, but their use as distance indicators is limited by the circularity problem in calibrating…

宇宙学与河外天体物理 · 物理学 2026-03-19 Wei Hong , Luca Izzo , Massimo Della Valle , Orlando Luongo , Marco Muccino , Tong-Jie Zhang

Gamma-ray bursts (GRBs) serve as important cosmological probes, whose X-ray afterglow light curves (LCs) may exhibit a plateau phase (with temporal slope $\alpha$ between 0 and 0.5) that may originate from magnetar energy injection. Similar…

宇宙学与河外天体物理 · 物理学 2025-08-21 Yu-Qi Zhou , Shuang-Xi Yi , Yu-Peng Yang , Jia-Lun Li , Jian-Ping Hu , Yan-Kun Qu , Fa-Yin Wang

Gamma ray bursts (GRBs) have recently attracted much attention as a possible way to extend the Hubble diagram to very high redshift. To this aim, the luminosity (or isotropic emitted energy) of a GRB at redshift z must be evaluated from a…

宇宙学与河外天体物理 · 物理学 2010-01-11 V. F. Cardone , S. Capozziello , M. G. Dainotti

Gamma-ray bursts (GRBs) have been regarded as standard candles at very high redshift for cosmology research. We have proposed a new method to calibrate GRB distance indicators with Type Ia supernova (SNe Ia) data in a completely…

宇宙学与河外天体物理 · 物理学 2010-04-22 Nan Liang , Puxun Wu , Shuang Nan Zhang

In this paper, we continue to build support for the proposal to use gamma-ray bursts (GRBs) as standard candles in constructing the Hubble Diagram at redshifts beyond the current reach of Type Ia supernova observations. We confirm that…

高能天体物理现象 · 物理学 2015-06-12 Jun-Jie Wei , Xue-Feng Wu , Fulvio Melia

Gamma -ray bursts (GRBs) observed up to redshifts $z>9.4$ can be used as possible probes to test cosmological models. Here we show how changes of the slope of the {\it luminosity $L^*_X$ -break time $T^*_a$} correlation in GRB afterglows,…

高能天体物理现象 · 物理学 2015-06-16 Maria Giovanna Dainotti , Vincenzo Fabrizio Cardone , Ester Piedipalumbo , Salvatore Capozziello

An important concern in the application of gamma-ray bursts (GRBs) to cosmology is that the calibration of GRB luminosity/energy relations depends on the cosmological model, due to the lack of a sufficient low-redshift GRB sample. In this…

天体物理学 · 物理学 2009-11-13 Nan Liang , Wei Ke Xiao , Yuan Liu , Shuang Nan Zhang

For the use of Gamma-Ray Bursts (GRBs) to probe cosmology in a cosmology-independent way, a new method has been proposed to obtain luminosity distances of GRBs by interpolating directly from the Hubble diagram of SNe Ia, and then…

宇宙学与河外天体物理 · 物理学 2015-05-18 He Gao , Nan Liang , Zong-Hong Zhu

We calibrate the distance and reconstruct the Hubble diagram of gamma-ray bursts (GRBs) using deep learning. We construct an artificial neural network, which combines the recurrent neural network and Bayesian neural network, and train the…

广义相对论与量子宇宙学 · 物理学 2021-11-22 Li Tang , Hai-Nan Lin , Xin Li , Liang Liu

The actual knowledge of the structure and future evolution of our universe is based on the use of cosmological models, which can be tested through the so-called 'probes', namely astrophysical phenomena, objects or structures with peculiar…

宇宙学与河外天体物理 · 物理学 2021-10-27 Biagio De Simone , Via Nielson , Enrico Rinaldi , Maria Giovanna Dainotti

The recent $\sim 4 \, \sigma$ Hubble constant, $H_{0}$, tension is observed between the value of $H_{0}$ from the Cosmic Microwave Background (CMB) and Type Ia Supernovae (SNe Ia). It is a decade since this tension is excruciating the…

宇宙学与河外天体物理 · 物理学 2023-03-29 G. Bargiacchi , M. G. Dainotti , S. Nagataki , S. Capozziello

The best measure of the Universe should be done using a standard "ruler" at any redshift. Type Ia Supernovae (SN Ia) probe the universe up to z$\sim$1.5, while the Cosmic Microwave Background (CMB) primary anisotropies concern basically…

天体物理学 · 物理学 2009-11-10 G. Ghirlanda , G. Ghisellini , D. Lazzati , C. Firmani

The Hubble constant ($H_0$) tension is one of the biggest challenges in modern cosmology. This consists of the discrepancy, at around $5\sigma$, between the local value of $H_0$ measured through Supernovae Ia (SNe Ia) constrained with the…

宇宙学与河外天体物理 · 物理学 2025-01-28 Maria Giovanna Dainotti , Biagio De Simone

Cosmological probes at any redshift are necessary to reconstruct consistently the cosmic history. Studying properly the tension on the Hubble constant, $H_0$, obtained by Supernovae Type Ia (SNe Ia) and the Planck measurements of the Cosmic…

宇宙学与河外天体物理 · 物理学 2022-08-17 Maria Giovanna Dainotti , Giuseppe Sarracino , Salvatore Capozziello

In previous papers, a cosmological model with constant-rate particle creation and vacuum term decaying linearly with the Hubble parameter was shown to lead to a good concordance when tested against precise observations: the position of the…

宇宙学与河外天体物理 · 物理学 2013-05-09 Hermano Velten , Ariadna Montiel , Saulo Carneiro
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