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相关论文: Cosmography from well-localized Fast Radio Bursts

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Context: Fast Radio Bursts are transient radio pulses from presumably compact stellar sources of extragalactic origin. With new telescopes detecting multiple events per day, statistical methods are required in order to interpret…

宇宙学与河外天体物理 · 物理学 2021-01-20 Stefan Hackstein , Marcus Brüggen , Franco Vazza , Luiz F. S. Rodrigues

We discuss possible association of fast radio bursts (FRBs) with supergiant pulses emitted by young pulsars (ages $\sim$ tens to hundreds of years) born with regular magnetic field but very short -- few milliseconds -- spin periods. FRBs…

高能天体物理现象 · 物理学 2016-08-17 Maxim Lyutikov , Lukasz Burzawa , Sergei B. Popov

The phenomenon of fast radio bursts (FRBs) was discovered in 2007. These are powerful (0.1-100 Jy) single radio pulses with durations of several milliseconds, large dispersion measures, and record high brightness temperatures suggesting…

高能天体物理现象 · 物理学 2018-12-14 S. B. Popov , K. A. Postnov , M. S. Pshirkov

We use the dispersion measure (DM) and redshift measurements of 24 localized fast radio bursts (FRBs) to compare cosmological models and investigate the Hubble tension. Setting a flat prior on the DM contribution from the Milky Way's halo,…

宇宙学与河外天体物理 · 物理学 2023-08-14 Jun-Jie Wei , Fulvio Melia

The Hubble constant ($H_0$) is one of the most important parameters in the standard $\rm \Lambda CDM$ model. The measurements given by the main two methods show a gap larger than $4\sigma$, which is known as Hubble tension. Fast radio…

宇宙学与河外天体物理 · 物理学 2025-06-18 D. H. Gao , Q. Wu , J. P. Hu , S. X. Yi , X. Zhou , F. Y. Wang , Z. G. Dai

In this study, we use a sample of 130 well-localized fast radio bursts (FRBs) to constrain the physical baryon density $\Omega_{\rm b}h^2$, and the astrophysical contribution from host galaxies. The cosmological dependence entering the…

宇宙学与河外天体物理 · 物理学 2026-05-05 Lázaro L. Sales , Klecio E. L. de Farias , Amilcar R. Queiroz , Rafael A. Batista , Bruno W. Ribeiro , Raiff H. Santos

Fast radio bursts (FRBs) can provide a measure of the Hubble constant $H_0$ that is independent of the constraints set by the cosmic microwave background (CMB) and the type Ia supernovae (SNIa), thereby arbitrating the Hubble tension. In…

宇宙学与河外天体物理 · 物理学 2026-05-04 Jing-Yi Jia , Da-Chun Qiang , Lin-Yu Li , Hao Wei

The small-scale cosmic microwave background (CMB) is dominated by anisotropies from the kinematic Sunyaev-Zeldovich (kSZ) effect, and upcoming experiments will measure it very precisely, but the optical depth degeneracy limits the…

宇宙学与河外天体物理 · 物理学 2019-12-04 Mathew S. Madhavacheril , Nicholas Battaglia , Kendrick M. Smith , Jonathan L. Sievers

Although fast radio bursts (FRBs) were discovered more than a decade ago, and they have been one of the active fields in astronomy and cosmology, their origins are still unknown. An interesting topic closely related to the origins of FRBs…

高能天体物理现象 · 物理学 2025-08-12 Lin-Yu Li , Jing-Yi Jia , Da-Chun Qiang , Hao Wei

Fast Radio Bursts (FRBs) are a unique probe of the cosmos, owing to dispersion caused by free electrons in the intergalactic medium (IGM). Two of the main quantities of interest are degenerate: the density of matter…

宇宙学与河外天体物理 · 物理学 2025-08-21 Joscha N. Jahns-Schindler , Laura G. Spitler

Fast radio bursts (FRBs) are highly dispersed, sporadic radio pulses that are likely extragalactic in nature. Here we investigate the constraints on the source population from surveys carried out at frequencies $<1$~GHz. All but one FRB has…

高能天体物理现象 · 物理学 2016-12-21 Kaustubh Rajwade , Duncan Lorimer

Nowadays, fast radio bursts (FRBs) have been a promising probe for astronomy and cosmology. However, it is not easy to identify the redshifts of FRBs to date. Thus, no sufficient actual FRBs with identified redshifts can be used to study…

宇宙学与河外天体物理 · 物理学 2021-05-05 Da-Chun Qiang , Hao Wei

The cosmic proper distance $d_P$ is a fundamental distance in the Universe. Unlike the luminosity and angular diameter distances, which correspond to the angular size, the proper distance is the length of light path from the source to…

宇宙学与河外天体物理 · 物理学 2017-10-04 H. Yu , F. Y. Wang

Fast Radio Bursts (FRBs) are extragalactic millisecond-duration radio transients whose nature remains unknown. The advent of numerous facilities conducting dedicated FRB searches has dramatically revolutionised the field: hundreds of new…

高能天体物理现象 · 物理学 2024-12-03 Inés Pastor-Marazuela

Dispersion measure (DM) of Fast Radio Bursts (FRBs) are commonly used as a indicator of distance assuming that DM in excess of the expected amount within the Milky Way in the direction of each FRB arise mostly from the inter-galactic…

高能天体物理现象 · 物理学 2020-05-27 Yuu Niino

The discovery of fast radio bursts (FRBs) about a decade ago opened up new possibilities for probing the ionization history of the Intergalactic Medium (IGM). In this paper we study the use of FRBs for tracing the epoch of HeII…

高能天体物理现象 · 物理学 2019-03-06 M. Caleb , C. Flynn , B. Stappers

Almost a third of the cosmic baryons are "missing" at low redshifts, as they reside in the invisible warm-hot intergalactic medium (WHIM). The thermal Sunyaev-Zeldovich (tSZ) effect, which measures the line-of-sight integral of the plasma…

宇宙学与河外天体物理 · 物理学 2018-11-22 Julian B. Muñoz , Abraham Loeb

Fast radio bursts (FRBs) are millisecond transients of unknown origin(s) occurring at cosmological distances. Here we, for the first time, show time-integrated-luminosity functions and volumetric occurrence rates of non-repeating and…

Complex astrophysical processes regulate the growth of galaxies by injecting energy and momentum into their surroundings, redistributing baryons across megaparsec scales. The clustering of matter on these scales, as measured via weak…

宇宙学与河外天体物理 · 物理学 2026-04-21 Kritti Sharma , Elisabeth Krause , Vikram Ravi , Liam Connor , Dhayaa Anbajagane , Pranjal R. S