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The Hubble constant ($H_0$) is one of the fundamental parameters in cosmology, but there is a heated debate around the $>$4$\sigma$ tension between the local Cepheid distance ladder and the early Universe measurements. Strongly lensed Type…

宇宙学与河外天体物理 · 物理学 2022-03-14 S. Huber , S. H. Suyu , D. Ghoshdastidar , S. Taubenberger , V. Bonvin , J. H. H. Chan , M. Kromer , U. M. Noebauer , S. A. Sim , L. Leal-Taixé

Strongly lensed type Ia supernovae (SNe Ia) are expected to have some advantages in measuring time delays of multiple images, and so they have a great potential to be developed into a powerful late-universe cosmological probe. In this…

宇宙学与河外天体物理 · 物理学 2022-07-26 Jing-Zhao Qi , Yu Cui , Wei-Hong Hu , Jing-Fei Zhang , Jing-Lei Cui , Xin Zhang

The upcoming Large Synoptic Survey Telescope (LSST) will detect many strongly lensed Type Ia supernovae (LSNe Ia) for time-delay cosmography. This will provide an independent and direct way for measuring the Hubble constant $H_0$, which is…

Strong gravitationally lensed supernovae (LSNe), though rare, are exceptionally valuable probes for cosmology and astrophysics. Upcoming time-domain surveys like the Vera Rubin Observatory's Legacy Survey of Space and Time (LSST) offer a…

天体物理仪器与方法 · 物理学 2026-03-04 Satadru Bag , Raoul Canameras , Sherry H. Suyu , Stefan Schuldt , Stefan Taubenberger , Irham Taufik Andika , Alejandra Melo

Strong gravitationally lensed supernovae (LSNe) are rare but extremely valuable probes of cosmology and astrophysics. Prompt identification within the alert streams of time-domain surveys such as the Rubin Legacy Survey of Space and Time…

Strongly lensed type Ia supernovae (SNe Ia) provide a unique cosmological probe to address the Hubble tension problem in cosmology. In addition to the sensitivity of the time delays to the value of the Hubble constant, the transient and…

宇宙学与河外天体物理 · 物理学 2025-06-27 Prajakta Mane , Anupreeta More , Surhud More

Strong lensing time delay measurement is a promising method to address the Hubble tension, offering a completely independent approach compared to both the cosmic microwave background analysis and the local distance ladder. As a third-party…

星系天体物理 · 物理学 2025-01-10 Guanhua Rui , Wenwen Zheng , Zizhao He , Yiping Shu , Xinzhong Er , Guoliang Li , Bin Hu

Strongly gravitationally lensed supernovae (LSNe) are promising probes for providing absolute distance measurements using gravitational-lens time delays. Spatially unresolved LSNe offer an opportunity to enhance the sample size for…

Strongly-lensed supernovae are rare and valuable probes of cosmology and astrophysics. Upcoming wide-field time-domain surveys, such as the Vera C. Rubin Observatory's Legacy Survey of Space and Time (LSST), are expected to discover an…

We present a data-driven method based on long short-term memory (LSTM) neural networks to analyze spectral time series of Type Ia supernovae (SNe Ia). The dataset includes 3091 spectra from 361 individual SNe Ia. The method allows for…

高能天体物理现象 · 物理学 2022-05-09 Lei Hu , Xingzhuo Chen , Lifan Wang

Absolute distances from strong lensing can anchor Type Ia Supernovae (SNe Ia) at cosmological distances giving a model-independent inference of the Hubble constant ($H_0$). Future observations could provide strong lensing time-delay…

宇宙学与河外天体物理 · 物理学 2024-01-29 Xiaolei Li , Ryan E. Keeley , Arman Shafieloo , Kai Liao

Strongly lensed supernovae are a promising new probe to obtain independent measurements of the Hubble constant (${H_0}$). In this work, we employ simulated gravitationally lensed Type Ia supernovae (glSNe Ia) to train our machine learning…

天体物理仪器与方法 · 物理学 2025-04-16 Gonçalo Gonçalves , Nikki Arendse , Doogesh Kodi Ramanah , Radosław Wojtak

Measuring time delays from strongly lensed supernovae (SNe) is emerging as a novel and independent tool for estimating the Hubble constant $(H_0)$. This is very important given the recent discord in the value of $H_0$ from two methods that…

宇宙学与河外天体物理 · 物理学 2019-01-09 T. Petrushevska , T. Okamura , R. Kawamata , L. Hangard , G. Mahler , A. Goobar

Strong gravitationally lensed supernovae (glSNe) are a powerful probe to obtain a measure of the expansion rate of the Universe, but they are also extremely rare. To date, only two glSNe with multiple images strongly lensed by galaxies have…

宇宙学与河外天体物理 · 物理学 2023-10-05 Ana Sainz de Murieta , Thomas E. Collett , Mark R. Magee , Luke Weisenbach , Coleman M. Krawczyk , Wolfgang Enzi

Recently, there have been two landmark discoveries of gravitationally lensed supernovae: the first multiply-imaged SN, "Refsdal", and the first Type Ia SN resolved into multiple images, SN iPTF16geu. Fitting the multiple light curves of…

宇宙学与河外天体物理 · 物理学 2019-05-27 Justin R. Pierel , Steven A. Rodney

Supernova H0pe is a multiply-imaged Type Ia supernova (SN~Ia) and the second lensed SN to yield a measurement of the Hubble constant by the time-delay cosmography method, finding $H_0 = 75.4^{+8.1}_{-5.5} \text{km s}^{-1} \text{Mpc}^{-1}$…

Time delays between the multiple images of strongly lensed Type Ia supernovae (gl\sneia) have the potential to deliver precise cosmological constraints, but the effects of microlensing on the measurement have not been studied in detail.…

宇宙学与河外天体物理 · 物理学 2018-03-14 Daniel A. Goldstein , Peter E. Nugent , Daniel N. Kasen , Thomas E. Collett

Massive galaxy clusters at intermediate redshifts act as gravitational lenses that can magnify supernovae (SNe) occurring in background galaxies. We assess the possibility to use lensed SNe to put constraints on the mass models of galaxy…

In this paper, we present a scheme to investigate the opacity of the Universe in a cosmological-model-independent way, with the combination of current and future measurements of type Ia supernova sample and galactic-scale strong…

宇宙学与河外天体物理 · 物理学 2020-01-08 Yu-Bo Ma , Shuo Cao , Jia Zhang , Jingzhao Qi , Tonghua Liu , Yuting Liu , Shuaibo Geng
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