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相关论文: Cosmoglobe DR2. I. Global Bayesian analysis of COB…

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Using mock data for the Hubble diagrams of type Ia supernovae (SNIa) and quasars (QSOs) generated based on the standard model of cosmology, and using the least-squares method based on the Markov-Chain-Monte-Carlo (MCMC) algorithm, we first…

宇宙学与河外天体物理 · 物理学 2023-01-04 S. Pourojaghi , N. F. Zabihi , M. Malekjani

The high Galactic latitude sky at millimeter and submm wavelengths contains significant cosmological information about the early Universe (in terms of the cosmic microwave background) but also the process of structure formation in the…

宇宙学与河外天体物理 · 物理学 2010-09-16 Luca Conversi , Paola Fiadino , Paolo de Bernardis , Silvia Masi

The latest Baryon Acoustic Oscillation (BAO) measurements from the Dark Energy Spectroscopic Instrument (DESI) collaboration, when combined with Planck satellite Cosmic Microwave Background (CMB) data and Type Ia Supernovae, suggest a…

宇宙学与河外天体物理 · 物理学 2025-07-09 William Giarè

We present cosmological constraints from a cosmic shear analysis of the fourth data release of the Kilo-Degree Survey (KiDS-1000), doubling the survey area with nine-band optical and near-infrared photometry with respect to previous KiDS…

The cosmic infrared background (CIB) sourced by infrared emission from dusty star-forming galaxies is a valuable source of information on the star formation history of the Universe. In measurements of the millimeter sky at frequencies…

宇宙学与河外天体物理 · 物理学 2021-05-19 Fiona McCarthy , Mathew S. Madhavacheril

The cosmological bound of the stochastic background of gravitational waves is analyzed with the aid of the WMAP data, differently from lots of works in literature, where the old COBE data were used. From our analysis, it will result that…

广义相对论与量子宇宙学 · 物理学 2015-06-03 Christian Corda

The cosmic infrared background (CIB) radiation is the cosmic repository for energy release throughout the history of the universe. Using the all-sky data from the COBE DIRBE instrument at wavelengths 1.25 - 100 mic we attempt to measure the…

天体物理学 · 物理学 2009-10-31 A. Kashlinsky , J. C. Mather , S. Odenwald

Foreground emission and scattered light from interplanetary dust (IPD) particles and emission from Galactic stellar sources are the greatest obstacles for determining the cosmic infrared background (CIB) from diffuse sky measurements in the…

天体物理学 · 物理学 2009-09-28 E. Dwek , R. G. Arendt

We explore and compare the capabilities of the recent observations of standard cosmological probes and the future observations of gravitational-wave (GW) standard sirens on constraining cosmological parameters. It is carried out in the…

宇宙学与河外天体物理 · 物理学 2022-06-22 Jie Zheng , Yun Chen , Tengpeng Xu , Zong-Hong Zhu

f(R) gravity is thought to be an alternative to dark energy which can explain the acceleration of the universe. It has been tested by different observations including type Ia supernovae (SNIa), the cosmic microwave background (CMB), the…

宇宙学与河外天体物理 · 物理学 2012-07-12 Kai Liao , Zong-Hong Zhu

Delensing, the removal of the limiting lensing B-mode background, is crucial for the success of future cosmic microwave background (CMB) surveys in constraining inflationary gravitational waves (IGWs). In recent work, delensing with…

宇宙学与河外天体物理 · 物理学 2017-12-20 Byeonghee Yu , J. Colin Hill , Blake D. Sherwin

Fundamental information about the Universe is encoded in anisotropies of the Cosmic Microwave Background (CMB) radiation. To make full use of this information, an experiment must image the entire sky with the angular resolution,…

This paper discusses the Cosmic Background (CB) dipoles observations in the framework of the Planck mission. Dipoles observations can be used in three ways: (i) It gives a measurement of the peculiar velocity of our Galaxy which is an…

天体物理学 · 物理学 2009-11-07 M. Piat , G. Lagache , J. P. Bernard , M. Giard , J. L. Puget

We present a four-component high-resolution model of thermal dust emission for microwave and sub-mm frequencies derived from Planck HFI, WHAM and Gaia. The resulting high-resolution model derived here forms the basis for the thermal dust…

ESA has identified interferometry as one of the major goals of the Horizon 2000+ programme. Infrared interferometers are a highly sensitive astronomical instruments that enable us to observe terrestrial planets around nearby stars. In this…

天体物理学 · 物理学 2016-08-16 M. Landgraf , R. Jehn , W. Flury , M. Fridlund , A. Karlsson , A. Léger

Extracting information from cosmic surveys is often done in a two-step process, construction of maps and then summary statistics such as two-point functions. We use simulations to demonstrate the advantages of a general Bayesian framework…

宇宙学与河外天体物理 · 物理学 2023-12-06 Alan Junzhe Zhou , Scott Dodelson

In the next decades, it is necessary to forge new late-universe cosmological probes to precisely constrain the Hubble constant and the equation of state of dark energy simultaneously. In this work, we show that the four typical…

宇宙学与河外天体物理 · 物理学 2023-06-26 Peng-Ju Wu , Yue Shao , Shang-Jie Jin , Xin Zhang

As ever-more sensitive experiments are made in the quest for primordial CMB B Modes, the number of potentially significant astrophysical contaminants becomes larger as well. Thermal emission from interplanetary dust, for example, has been…

宇宙学与河外天体物理 · 物理学 2021-12-07 K. Ganga , M. Maris , M. Remazeilles

Cut-sky orthogonal mode analyses of the COBE-DMR 53 and 90 GHz sky maps are used to determine the normalization of a variety of open cosmogonical models based on the cold dark matter scenario. To constrain the allowed cosmological-parameter…

天体物理学 · 物理学 2008-11-26 K. M. Gorski , B. Ratra , R. Stompor , N. Sugiyama , A. J. Banday

We use a new approach based on self-supervised deep learning networks originally applied to transparency separation in order to simultaneously extract the components of the extragalactic submillimeter sky, namely the cosmic microwave…

宇宙学与河外天体物理 · 物理学 2024-06-05 V. Bonjean , H. Tanimura , N. Aghanim , T. Bonnaire , M. Douspis