Results 101 to 110 of about 5,544,231 (205)

The Cosmic Microwave Background Radiation (CMBR) Anisotropy

, 2019
In this chapter we will describe the Cosmic Microwave Background Radiation and its anisotropy. After describing the CMBR kinematics, we will see how primordial perturbations, in particular curvature perturbations, that were already observed, are ...
Horaţiu Năstase, Năstase, Horaţiu [UNESP]   +1 more
core   +1 more source

A Measurement of the Largest-scale CMB E-mode Polarization with CLASS

The Astrophysical Journal
We present measurements of large-scale cosmic microwave background E -mode polarization from the Cosmology Large Angular Scale Surveyor 90 GHz data. Using 115 det-yr of observations collected through 2024 with a variable-delay polarization modulator, we ...
Yunyang Li, Joseph R. Eimer, John W. Appel, Charles L. Bennett, Michael K. Brewer, Sarah Marie Bruno, Ricardo Bustos, Carol Yan Yan Chan, David T. Chuss, Joseph Cleary, Sumit Dahal, Rahul Datta, Jullianna Denes Couto, Kevin L. Denis, Rolando Dünner, Thomas Essinger-Hileman, Kathleen Harrington, Kyle Helson, Johannes Hubmayr, Jeffrey Iuliano, John Karakla, Tobias A. Marriage, Nathan J. Miller, Carolina Morales Perez, Lucas P. Parker, Matthew A. Petroff, Rodrigo A. Reeves, Karwan Rostem, Caleigh Ryan, Rui Shi, Koji Shukawa, Deniz A. N. Valle, Duncan J. Watts, Janet L. Weiland, Edward J. Wollack, Zhilei Xu, Lingzhen Zeng   +36 more
doaj   +1 more source

Refitting Cosmological Data with Neutrino Mass and Degeneracy

The Astrophysical Journal Letters
A simple and natural extension of the standard Lambda cold dark matter (ΛCDM) model is to allow relic neutrinos to have finite chemical potentials. We confront this ΛCDM ξ model, a ΛCDM with neutrino mass M _ν and degeneracy ξ _3 as additional parameters,
Shek Yeung, Wangzheng Zhang, Ming-chung Chu   +2 more
doaj   +1 more source

Effects of Scattering of Radiation on Wormholes

Universe, 2018
Significant progress in the development of observational techniques gives us the hope to directly observe cosmological wormholes. We have collected basic effects produced by the scattering of radiation on wormholes, which can be used in observations ...
Alexander Kirillov, Elena Savelova
doaj   +1 more source

Noncommutative black-body radiation: Implications on cosmic microwave background

, 2006
Including loop corrections, black-body radiation in noncommutative space is anisotropic.
A. H. Fatollahi, M. Hajirahimi
core   +1 more source

Cosmic microwave background radiation anisotropy induced by cosmic strings [PDF]

, 1995
We report on a current investigation of the anisotropy pattern induced by cosmic strings on the cosmic microwave background radiation (MBR). We have numerically evolved a network of cosmic strings from a redshift of Z = 100 to the present and calculated ...
Shellard, E., Caldwell, R., Allen, B., Veeraraghavan, S., Stebbins, A.   +4 more
core   +1 more source

On the cosmic microwave background radiation

, 2017
In this article we will try to give a pale idea to the reader of what could be the Cosmic Microwave Background (RCFM) that, according to the traditional Big Bang model, was generated by a primordial explosion. With this purpose we find it very important to present a brief historical summary of how the Microcosm, based on the Standard Model of ...
Bassalo, José Maria Filardo, Cattani, M.   +1 more
openaire   +1 more source

Cosmic archeology with the Cosmic Microwave Background Radiation

, 2010
A cosmologia é uma ciência relativamente jovem, e que permanentemente requer observações que sustentem as previsões teóricas dos cientistas que trabalham nessa área. A Radiação Cósmica de Fundo em microondas (RCFM) é uma das observações utilizadas para isso, sendo a mais antiga fonte de observação direta do Universo de que dispomos e uma evidência ...
Souza, Carlos Alexandre Wuensche de, Villela, Thyrso, Tello, Camilo, Ferreira, Ivan Soares   +3 more
openaire   +1 more source

Nonparametric inference for the Cosmic Microwave Background [PDF]

, 2004
Genovese, C., Miller, C., Arjunwadkar, M., Nichol, Bob, Wasserman, L.   +4 more
core   +1 more source

The Simons Observatory: Design, Integration, and Testing of the Small Aperture Telescopes

The Astrophysical Journal Supplement Series
The Simons Observatory (SO) is a cosmic microwave background survey experiment that includes small-aperture telescopes (SATs) observing from an altitude of 5200 m in the Atacama Desert in Chile.
Nicholas Galitzki, Tran Tsan, Jake Spisak, Michael Randall, Max Silva-Feaver, Joseph Seibert, Jacob Lashner, Shunsuke Adachi, Sean M. Adkins, Thomas Alford, Kam Arnold, Peter C. Ashton, Jason E. Austermann, Carlo Baccigalupi, Andrew Bazarko, James A. Beall, Sanah Bhimani, Bryce Bixler, Gabriele Coppi, Lance Corbett, Kevin D. Crowley, Kevin T. Crowley, Samuel Day-Weiss, Mark J. Devlin, Simon Dicker, Brooke DiGia, Peter N. Dow, Cody J. Duell, Shannon M. Duff, Remington G. Gerras, John C. Groh, Jon E. Gudmundsson, Kathleen Harrington, Masaya Hasegawa, Erin Healy, Shawn W. Henderson, Johannes Hubmayr, Jeffrey Iuliano, Bradley R. Johnson, Brian Keating, Ben Keller, Kenji Kiuchi, Anna M. Kofman, Brian J. Koopman, Akito Kusaka, Adrian T. Lee, Richard A. Lew, Lawrence T. Lin, Michael J. Link, Tammy J. Lucas, Marius Lungu, Aashrita Mangu, Jeffrey J McMahon, Amber D. Miller, Jenna E. Moore, Magdy Morshed, Hironobu Nakata, Federico Nati, Laura B. Newburgh, David V. Nguyen, Michael D. Niemack, Lyman A. Page, Kana Sakaguri, Yuki Sakurai, Mayuri Sathyanarayana Rao, Lauren J. Saunders, Jordan E. Shroyer, Junna Sugiyama, Osamu Tajima, Atsuto Takeuchi, Refilwe Tanah Bua, Grant Teply, Tomoki Terasaki, Joel N. Ullom, Jeffrey L. Van Lanen, Eve M. Vavagiakis, Michael R Vissers, Liam Walters, Yuhan Wang, Zhilei Xu, Kyohei Yamada, Kaiwen Zheng   +81 more
doaj   +1 more source