Results 101 to 110 of about 3,768 (214)

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
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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

Cosmic Microwave Background Anisotropy Large Angular Scales / Cobe DMR Results [PDF]

, 1995
Observations of the Cosmic Microwave Background (CMB)Radiation have put the standard model of cosmology, the Big Bang, on firm footing and provide tests of various ideas of large scale structure formation.
G. F. Smoot, Smoot, George F.
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Topological defects in low-energy string gravity [PDF]

, 1999
Cosmologists are interested in topological defects as a possible source for the primordial density perturbations which seeded structure formation through gravitational instability.
Dando, Owen Robert
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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
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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
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Nonparametric inference for the Cosmic Microwave Background [PDF]

, 2004
Genovese, C., Miller, C., Arjunwadkar, M., Nichol, Bob, Wasserman, L.   +4 more
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Spectral Distortions of the Cosmic Microwave Background [PDF]

, 2005
Studying the cosmic microwave background (CMB) has proven to be an immensely rich source of information about the Universe we live in. Many groups were and are intensely working on the interpretation of the large amount of CMB data, which has become ...
Chluba, J., Chluba, Jens
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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
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Extended defects in curved spacetimes [PDF]

, 1999
This Thesis is concerned with three particular aspects of extended cosmic strings and domain walls in cosmology: their dynamics, gravitation and interaction with a black hole. In Chapter 3, we study the dynamics of an abelian-Higgs cosmic string. We find
Bonjour, F., Bonjour, Filipe
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