English
Related papers

Related papers: Full-sky Models of Galactic Microwave Emission and…

200 papers

One of the fundamental problems in extracting the cosmic microwave background signal (CMB) from millimeter/submillimeter observations is the pollution by emission from the Milky Way: synchrotron, free-free, and thermal dust emission. To…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 H. U. Nørgaard - Nielsen

Polarization of interstellar dust emission is a powerful probe of dust properties and magnetic field structure. Yet studies of external galaxies are hampered by foreground dust contribution. The aim of this study is to separate the…

Astrophysics of Galaxies · Physics 2022-11-30 D. Alina , J. -Ph. Bernard , K. H. Yuen , A. Lazarian , A. Hughes , M. Iskakova , A. Akimkhan , A. Mukanova

In inflationary models, gravitational waves are produced and generate B-type polarization in the CMB. Since B polarization is only generated by gravity waves it does not suffer from the cosmic variance. A perfect decomposition of the CMB…

Astrophysics · Physics 2009-11-13 Mihail Amarie , Christopher Hirata , Uros Seljak

The anisotropies of the cosmic microwave background are a gold mine for cosmology and fundamental physics. ESA's Planck satellite should soon extract all information from the temperature vein but will be limited concerning the measurement…

Astrophysics · Physics 2007-05-23 F. R. Bouchet , A. Benoit , Ph. Camus , F. X. Desert , M. Piat , N. Ponthieu

[Abridged] Recent results from the BICEP, Keck Array and Planck Collaborations demonstrate that Galactic foregrounds are an unavoidable obstacle in the search for evidence of inflationary gravitational waves in the cosmic microwave…

Cosmology and Nongalactic Astrophysics · Physics 2016-04-07 Josquin Errard , Stephen M. Feeney , Hiranya V. Peiris , Andrew H. Jaffe

The BICEP3 CMB Polarimeter is a small-aperture refracting telescope located at the South Pole and is specifically designed to search for the possible signature of inflationary gravitational waves in the Cosmic Microwave Background (CMB).…

The polarization of the cosmic microwave background (CMB) is encoded with exactly the same cosmic information as the CMB's temperature anistropy. However, polarization has the additional promise of accurately probing the reionization…

Astrophysics · Physics 2009-11-13 Brian Keating , Nathan Miller

Polarized far-infrared and submillimeter emission is calculated for models of nonspherical dust grains that are constrained to reproduce the observed wavelength-dependent extinction and polarization of starlight. For emission from regions…

Astrophysics · Physics 2011-02-11 Bruce T. Draine , Aurélien A. Fraisse

The next generation of instruments designed to measure the polarization of the cosmic microwave background (CMB) will provide a historic opportunity to open the gravitational wave window to the primordial Universe. Through high sensitivity…

The Cosmic Microwave Background (CMB) physics can be used to constrain the dark energy dynamics: B modes of the polarization of the diffuse CMB emission as well as the polarized signal towards clusters of galaxies are sensitive to the…

Astrophysics · Physics 2007-05-23 Paola Andreani , Carlo Baccigalupi

Using results of numerical simulations and astrophysical observations (mainly in the WMAP and Planck frequency bands) it is shown that Galactic foreground emission becomes more sensitive to the mean magnetic field with the frequency, that…

Astrophysics of Galaxies · Physics 2025-06-04 A. Bershadskii

In order to better analyse the polarization of the cosmic microwave background (CMB), which is dominated by emission from our Galaxy, we need tools that can detect residual foregrounds in cleaned CMB maps. Galactic foregrounds introduce…

Cosmology and Nongalactic Astrophysics · Physics 2019-10-16 Majd Ghrear , Emory F. Bunn , Dagoberto Contreras , Douglas Scott

CMB (Cosmic Microwave Background) polarization observations test many aspects of cosmological models. Effective pseudoscalar-photon interaction(s) would induce a rotation of linear polarization of electromagnetic wave propagating with…

Cosmology and Nongalactic Astrophysics · Physics 2009-08-20 Wei-Tou Ni

This paper discusses the science case for a sensitive spectro-polarimetric survey of the microwave sky. Such a survey would provide a tomographic and dynamic census of the three-dimensional distribution of hot gas, velocity flows, early…

Cosmology and Nongalactic Astrophysics · Physics 2019-09-09 Jacques Delabrouille , Maximilian H. Abitbol , Nabila Aghanim , Yacine Ali-Haimoud , David Alonso , Marcelo Alvarez , Anthony J. Banday , James G. Bartlett , Jochem Baselmans , Kaustuv Basu , Nicholas Battaglia , Jose Ramon Bermejo Climent , Jose L. Bernal , Matthieu Béthermin , Boris Bolliet , Matteo Bonato , François R. Bouchet , Patrick C. Breysse , Carlo Burigana , Zhen-Yi Cai , Jens Chluba , Eugene Churazov , Helmut Dannerbauer , Paolo De Bernardis , Gianfranco De Zotti , Eleonora Di Valentino , Emanuela Dimastrogiovanni , Akira Endo , Jens Erler , Simone Ferraro , Fabio Finelli , Dale Fixsen , Shaul Hanany , Luke Hart , Carlos Hernandez-Monteagudo , J. Colin Hill , Selim C. Hotinli , Kenichi Karatsu , Kirit Karkare , Garrett K. Keating , Ildar Khabibullin , Alan Kogut , Kazunori Kohri , Ely D. Kovetz , Guilaine Lagache , Julien Lesgourgues , Mathew Madhavacheril , Bruno Maffei , Nazzareno Mandolesi , Carlos Martins , Silvia Masi , John Mather , Jean-Baptiste Melin , Azadeh Moradinezhad Dizgah , Tony Mroczkowski , Suvodip Mukherjee , Daisuke Nagai , Mattia Negrello , Nathalie Palanque-Delabrouille , Daniela Paoletti , Subodh P. Patil , Francesco Piacentini , Srinivasan Raghunathan , Andrea Ravenni , Mathieu Remazeilles , Vincent Revéret , Louis Rodriguez , Aditya Rotti , Jose-Alberto Rubino Martin , Jack Sayers , Douglas Scott , Joseph Silk , Marta Silva , Tarun Souradeep , Naonori Sugiyama , Rashid Sunyaev , Eric R. Switzer , Andrea Tartari , Tiziana Trombetti , Inigo Zubeldia

We present an improved Global Sky Model (GSM) of diffuse galactic radio emission from 10 MHz to 5 THz, whose uses include foreground modeling for CMB and 21 cm cosmology. Our model improves on past work both algorithmically and by adding…

Cosmology and Nongalactic Astrophysics · Physics 2016-10-05 Haoxuan Zheng , Max Tegmark , Joshua S. Dillon , Doyeon A. Kim , Adrian Liu , Abraham Neben , Justin Jonas , Patricia Reich , Wolfgang Reich

SPOrt (Sky Polarization Observatory) is a space experiment to be flown on the International Space Station during Early Utilization Phase aimed at measuring the microwave polarized emission with FWHM = 7deg, in the frequency range 22-90 GHz.…

Destriping is a well-established technique for removing low-frequency correlated noise from Cosmic Microwave Background (CMB) survey data. In this paper we present a destriping algorithm tailored to data from a polarimeter, i.e. an…

Instrumentation and Methods for Astrophysics · Physics 2013-11-11 Andrea Zonca , Brian Williams , Peter Meinhold , Philip Lubin

BICEP2 has reported the detection of a degree-scale B-mode polarization pattern in the Cosmic Microwave Background (CMB) and has interpreted the measurement as evidence for primordial gravitational waves. Motivated by the profound…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-19 Raphael Flauger , J. Colin Hill , David N. Spergel

The Wilkinson Microwave Anisotropy Probe WMAP has mapped the entire sky in five frequency bands between 23 and 94 GHz with polarization sensitive radiometers. We present three-year full-sky maps of the polarization and analyze them for…

We extend the pure pseudo-power-spectrum formalism proposed recently in the context of the Cosmic Microwave Background polarized power spectra estimation by Smith (2006) to incorporate cross-spectra computed for multiple maps of the same…

Cosmology and Nongalactic Astrophysics · Physics 2009-07-09 J. Grain , M. Tristram , R. Stompor
‹ Prev 1 8 9 10 Next ›