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We present new arcminute-resolution maps of the Cosmic Microwave Background temperature and polarization anisotropy from the Atacama Cosmology Telescope, using data taken from 2013-2016 at 98 and 150 GHz. The maps cover more than 17,000…

Cosmology and Nongalactic Astrophysics · Physics 2021-11-18 Simone Aiola , Erminia Calabrese , Loïc Maurin , Sigurd Naess , Benjamin L. Schmitt , Maximilian H. Abitbol , Graeme E. Addison , Peter A. R. Ade , David Alonso , Mandana Amiri , Stefania Amodeo , Elio Angile , Jason E. Austermann , Taylor Baildon , Nick Battaglia , James A. Beall , Rachel Bean , Daniel T. Becker , J Richard Bond , Sarah Marie Bruno , Victoria Calafut , Luis E. Campusano , Felipe Carrero , Grace E. Chesmore , Hsiao-mei Cho , Steve K. Choi , Susan E. Clark , Nicholas F. Cothard , Devin Crichton , Kevin T. Crowley , Omar Darwish , Rahul Datta , Edward V. Denison , Mark J. Devlin , Cody J. Duell , Shannon M. Duff , Adriaan J. Duivenvoorden , Jo Dunkley , Rolando Dünner , Thomas Essinger-Hileman , Max Fankhanel , Simone Ferraro , Anna E. Fox , Brittany Fuzia , Patricio A. Gallardo , Vera Gluscevic , Joseph E. Golec , Emily Grace , Megan Gralla , Yilun Guan , Kirsten Hall , Mark Halpern , Dongwon Han , Peter Hargrave , Matthew Hasselfield , Jakob M. Helton , Shawn Henderson , Brandon Hensley , J. Colin Hill , Gene C. Hilton , Matt Hilton , Adam D. Hincks , Renée Hložek , Shuay-Pwu Patty Ho , Johannes Hubmayr , Kevin M. Huffenberger , John P. Hughes , Leopoldo Infante , Kent Irwin , Rebecca Jackson , Jeff Klein , Kenda Knowles , Brian Koopman , Arthur Kosowsky , Victoria Lakey , Dale Li , Yaqiong Li , Zack Li , Martine Lokken , Thibaut Louis , Marius Lungu , Amanda MacInnis , Mathew Madhavacheril , Felipe Maldonado , Maya Mallaby-Kay , Danica Marsden , Jeff McMahon , Felipe Menanteau , Kavilan Moodley , Tim Morton , Toshiya Namikawa , Federico Nati , Laura Newburgh , John P. Nibarger , Andrina Nicola , Michael D. Niemack , Michael R. Nolta , John Orlowski-Sherer , Lyman A. Page , Christine G. Pappas , Bruce Partridge , Phumlani Phakathi , Giampaolo Pisano , Heather Prince , Roberto Puddu , Frank J. Qu , Jesus Rivera , Naomi Robertson , Felipe Rojas , Maria Salatino , Emmanuel Schaan , Alessandro Schillaci , Neelima Sehgal , Blake D. Sherwin , Carlos Sierra , Jon Sievers , Cristobal Sifon , Precious Sikhosana , Sara Simon , David N. Spergel , Suzanne T. Staggs , Jason Stevens , Emilie Storer , Dhaneshwar D. Sunder , Eric R. Switzer , Ben Thorne , Robert Thornton , Hy Trac , Jesse Treu , Carole Tucker , Leila R. Vale , Alexander Van Engelen , Jeff Van Lanen , Eve M. Vavagiakis , Kasey Wagoner , Yuhan Wang , Jonathan T. Ward , Edward J. Wollack , Zhilei Xu , Fernando Zago , Ningfeng Zhu

We present a catalog of 30 QSOs and their spectra, in the square degree of sky centered on the northern Hubble Deep Field. These QSOs were selected by multicolor photometry and subsequently confirmed with spectroscopy. They range in…

Astrophysics · Physics 2014-10-13 Charles Liu , Cathy Petry , Chris Impey , Craig Foltz

The shape of the angular power spectrum of galaxies in the linear regime is defined by the horizon size at the matter-radiation equality. When calibrated by cosmic microwave background measurements, the shape of the clustering spectrum can…

Astrophysics · Physics 2011-02-11 Asantha Cooray

Galaxy surveys are crucial for studying large-scale structure (LSS) and cosmology, yet they face limitations--imaging surveys provide extensive sky coverage but suffer from photo-$z$ uncertainties, while spectroscopic surveys yield precise…

Instrumentation and Methods for Astrophysics · Physics 2025-08-26 Wenying Du , Xiaolin Luo , Zhujun Jiang , Xu Xiao , Qiufan Lin , Xin Wang , Yang Wang , Fenfen Yin , Le Zhang , Xiao-Dong Li

We present the design, manufacturing methods, and characterization of 20 microwave feed horns currently in use on the Microwave Anisotropy Probe (MAP) satellite. The nature of the cosmic microwave background (CMB) anisotropy requires a…

Assuming linearity of the perturbations at the time of decoupling, we reconstruct the primordial scalar potential from the temperature and polarization anisotropies in the cosmic microwave background radiation. In doing so we derive an…

Astrophysics · Physics 2009-11-11 A. P. S. Yadav , B. D. Wandelt

The angular power spectrum of the cosmic infrared background (CIB) is a sensitive probe of the local primordial bispectrum. CIB measurements are integrated over a large volume so that the scale dependent bias from the primordial…

Cosmology and Nongalactic Astrophysics · Physics 2016-08-31 Marco Tucci , Vincent Desjacques , Martin Kunz

We extend the formalisms developed in Gair et al. and Cornish and van Haasteren to create maps of gravitational-wave backgrounds using a network of ground-based laser interferometers. We show that in contrast to pulsar timing arrays, which…

General Relativity and Quantum Cosmology · Physics 2015-08-20 Joseph D. Romano , Stephen R. Taylor , Neil J. Cornish , Jonathan Gair , Chiara M. F. Mingarelli , Rutger van Haasteren

This paper introduces a new and novel radar interferometry based on Doppler synthetic aperture radar (Doppler-SAR) paradigm. Conventional SAR interferometry relies on wideband transmitted waveforms to obtain high range resolution.…

Computational Engineering, Finance, and Science · Computer Science 2018-04-18 Birsen Yazici , Il-Young Son , H. Cagri Yanik

Accompanying Part I, this sequel delineates a validation of the recently proposed AI for Regularisation in radio-interferometric Imaging (AIRI) algorithm on observations from the Australian Square Kilometre Array Pathfinder (ASKAP). The…

Instrumentation and Methods for Astrophysics · Physics 2023-09-11 Amanda G. Wilber , Arwa Dabbech , Matthieu Terris , Adrian Jackson , Yves Wiaux

The Cosmology Large Angular Scale Surveyor (CLASS) is a telescope array that observes the cosmic microwave background over 75\% of the sky from the Atacama Desert, Chile, at frequency bands centered near 40, 90, 150, and 220~GHz. This paper…

Direction-of-arrival (DOA) estimation is an important task in microphone array processing and many downstream applications. The steered response power with phase transform (SRP-PHAT) method has been widely adopted for DOA estimation in…

Audio and Speech Processing · Electrical Eng. & Systems 2026-04-29 Ming Huang , Shuting Xu , Leying Yang , Huanzhang Hu , Yujie Zhang , Jiang Wang , Yu Liu , Hao Zhao , He Kong

We present a new model of the diffuse Galactic synchrotron radiation, concentrating on its angular anisotropies. While previous studies have focussed on either the variation of the emissivity on large (kpc) scales, or on fluctuations due to…

Astrophysics of Galaxies · Physics 2013-06-26 Philipp Mertsch , Subir Sarkar

The Large Area Telescope on board the \textit{Fermi} satellite (\textit{Fermi}-LAT) detected more than 1.6 million cosmic-ray electrons/positrons with energies above 60 GeV during its first year of operation. The arrival directions of these…

High Energy Astrophysical Phenomena · Physics 2012-08-27 The Fermi LAT Collaboration

We compute the angular power spectrum C_l from the BATSE 3B catalog of 1122 gamma-ray bursts, and find no evidence for clustering on any scale. These constraints bridge the entire range from small scales (which probe source clustering and…

Astrophysics · Physics 2009-10-07 Max Tegmark , Dieter Hartmann , Michael Briggs , Charles Meegan

The third science flight of the balloon-borne solar observatory Sunrise carries three entirely new post-focus science instruments with spectropolarimetric capabilities, concurrently covering an extended spectral range from the near…

Angular differential imaging is a high-contrast imaging technique that reduces quasi-static speckle noise and facilitates the detection of nearby companions. A sequence of images is acquired with an altitude/azimuth telescope while the…

Astrophysics · Physics 2009-11-13 C. Marois , D. Lafreniere , R. Doyon , B. Macintosh , D. Nadeau

A method to compute several scalar quantities of Cosmic Microwave Background maps on the sphere is presented. We consider here four type of scalars: the Hessian matrix scalars, the distortion scalars, the gradient related scalars and the…

Astrophysics · Physics 2009-11-13 C. Monteserin , R. B. Barreiro , J. L. Sanz , E. Martinez-Gonzalez

The TANAMI (Tracking AGN with Austral Milliarcsecond Interferometry) and associated programs provide comprehensive radio monitoring of extragalactic gamma-ray sources south of declination -30 degrees. Joint quasi-simultaneous observations…

We present a simple, yet accurate approximation for calculating the cosmic microwave background anisotropy power spectrum in adiabatic models. It consists of solving for the evolution of a two-fluid model until the epoch of recombination…

Astrophysics · Physics 2009-10-22 Uros Seljak