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We describe the reduction of data taken with the PACS instrument on board the Herschel Space Observatory in the Science Demonstration Phase of the Herschel-ATLAS (H-ATLAS) survey, specifically data obtained for a 4x4-deg^2 region using…

We report the first upper limits on the power spectrum of 21-cm fluctuations during the Epoch of Reionization and Cosmic Dawn from Phase II of the Hydrogen Epoch of Reionization Array (HERA) experiment. HERA Phase II constitutes several…

宇宙学与河外天体物理 · 物理学 2025-11-27 The HERA Collaboration , Zuhra Abdurashidova , Tyrone Adams , James E. Aguirre , Rushelle Baartman , Rennan Barkana , Lindsay M. Berkhout , Gianni Bernardi , Tashalee S. Billings , Bruno B. Bizarria , Judd D. Bowman , Daniela Breitman , Philip Bull , Jacob Burba , Ruby Byrne , Steven Carey , Rajorshi Sushovan Chandra , Kai-Feng Chen , Samir Choudhuri , Tyler Cox , David R. DeBoer , Eloy de Lera Acedo , Matt Dexter , Jiten Dhandha , Joshua S. Dillon , Scott Dynes , Nico Eksteen , John Ely , Aaron Ewall-Wice , Nicolas Fagnoni , Anastasia Fialkov , Steven R. Furlanetto , Kingsley Gale-Sides , Hugh Garsden , Adelie Gorce , Deepthi Gorthi , Ziyaad Halday , Bryna J. Hazelton , Jacqueline N. Hewitt , Jack Hickish , Tian Huang , Daniel C. Jacobs , Alec Josaitis , Nicholas S. Kern , Joshua Kerrigan , Piyanat Kittiwisit , Matthew Kolopanis , Adam Lanman , Paul La Plante , Adrian Liu , Yin-Zhe Ma , David H. E. MacMahon , Lourence Malan , Cresshim Malgas , Keith Malgas , Bradley Marero , Zachary E. Martinot , Lisa McBride , Andrei Mesinger , Jordan Mirocha , Nicel Mohamed-Hinds , Mathakane Molewa , Miguel F. Morales , Julian B. Muñoz , Steven G. Murray , Bojan Nikolic , Hans Nuwegeld , Aaron R. Parsons , Robert Pascua , Nipanjana Patra , Simon Pochinda , Yuxiang Qin , Eleanor Rath , Nima Razavi-Ghods , Daniel Riley , Kathryn Rosie , Mario G. Santos , Saurabh Singh , Dara Storer , Hilton Swarts , Jianrong Tan , Emilie Thélie , Pieter van Wyngaarden , Michael J. Wilensky , Peter K. G. Williams , Haoxuan Zheng

We present an all sky map of the $y$-type distortion calculated from the full mission Planck HFI (High Frequency Instrument) data using the recently proposed approach to component separation based on parametric model fitting and model…

宇宙学与河外天体物理 · 物理学 2016-07-25 Rishi Khatri

Intensity mapping, which images a single spectral line from unresolved galaxies across cosmological volumes, is a promising technique for probing the early universe. Here we present predictions for the intensity map and power spectrum of…

宇宙学与河外天体物理 · 物理学 2016-02-03 Tony Y. Li , Risa H. Wechsler , Kiruthika Devaraj , Sarah E. Church

The Millimeter-wave Intensity Mapping Experiment (mmIME) recently reported a detection of excess spatial fluctuations at a wavelength of 3 mm, which can be attributed to unresolved emission of several CO rotational transitions between…

宇宙学与河外天体物理 · 物理学 2022-04-20 Patrick C. Breysse , Shengqi Yang , Rachel S. Somerville , Anthony R. Pullen , Gergö Popping , Abhishek S. Maniyar

Line intensity mapping (LIM) is a promising probe to study star formation, the large-scale structure of the Universe, and the epoch of reionization (EoR). Since carbon monoxide (CO) is the second most abundant molecule in the Universe…

宇宙学与河外天体物理 · 物理学 2023-03-01 Xingchen Zhou , Yan Gong , Furen Deng , Meng Zhang , Bin Yue , Xuelei Chen

The Coronal Multichannel Polarimeter (CoMP) measures not only the polarization of coronal emission, but also the full radiance profiles of coronal emission lines. For the first time, CoMP observations provide high-cadence image sequences of…

太阳与恒星天体物理 · 物理学 2016-10-05 H. Tian , S. Tomczyk , S. W. McIntosh , C. Bethge , G. de Toma , S. Gibson

We present a Bayesian re-analysis of the sky-averaged 21-cm experimental data from SARAS2 using nested sampling implemented with polychord, spectrally smooth foreground modelling implemented with maxsmooth, detailed systematic modelling and…

宇宙学与河外天体物理 · 物理学 2022-05-23 H. T. J. Bevins , E. de Lera Acedo , A. Fialkov , W. J. Handley , S. Singh , R. Subrahmanyan , R. Barkana

This paper presents the High Frequency Instrument (HFI) data processing procedures for the Planck 2018 release. Major improvements in mapmaking have been achieved since the previous 2015 release. They enabled the first significant…

宇宙学与河外天体物理 · 物理学 2020-09-30 Planck Collaboration , N. Aghanim , Y. Akrami , M. Ashdown , J. Aumont , C. Baccigalupi , M. Ballardini , A. J. Banday , R. B. Barreiro , N. Bartolo , S. Basak , K. Benabed , J. -P. Bernard , M. Bersanelli , P. Bielewicz , J. R. Bond , J. Borrill , F. R. Bouchet , F. Boulanger , M. Bucher , C. Burigana , E. Calabrese , J. -F. Cardoso , J. Carron , A. Challinor , H. C. Chiang , L. P. L. Colombo , C. Combet , F. Couchot , B. P. Crill , F. Cuttaia , P. de Bernardis , A. de Rosa , G. de Zotti , J. Delabrouille , J. -M. Delouis , E. Di Valentino , J. M. Diego , O. Doré , M. Douspis , A. Ducout , X. Dupac , G. Efstathiou , F. Elsner , T. A. Enßlin , H. K. Eriksen , E. Falgarone , Y. Fantaye , F. Finelli , M. Frailis , A. A. Fraisse , E. Franceschi , A. Frolov , S. Galeotta , S. Galli , K. Ganga , R. T. Génova-Santos , M. Gerbino , T. Ghosh , J. González-Nuevo , K. M. Górski , S. Gratton , A. Gruppuso , J. E. Gudmundsson , W. Handley , F. K. Hansen , S. Henrot-Versillé , D. Herranz , E. Hivon , Z. Huang , A. H. Jaffe , W. C. Jones , A. Karakci , E. Keihänen , R. Keskitalo , K. Kiiveri , J. Kim , T. S. Kisner , N. Krachmalnicoff , M. Kunz , H. Kurki-Suonio , G. Lagache , J. -M. Lamarre , A. Lasenby , M. Lattanzi , C. R. Lawrence , F. Levrier , M. Liguori , P. B. Lilje , V. Lindholm , M. López-Caniego , Y. -Z. Ma , J. F. Macías-Pérez , G. Maggio , D. Maino , N. Mandolesi , A. Mangilli , P. G. Martin , E. Martínez-González , S. Matarrese , N. Mauri , J. D. McEwen , A. Melchiorri , A. Mennella , M. Migliaccio , M. -A. Miville-Deschênes , D. Molinari , A. Moneti , L. Montier , G. Morgante , A. Moss , S. Mottet , P. Natoli , L. Pagano , D. Paoletti , B. Partridge , G. Patanchon , L. Patrizii , O. Perdereau , F. Perrotta , V. Pettorino , F. Piacentini , J. -L. Puget , J. P. Rachen , M. Reinecke , M. Remazeilles , A. Renzi , G. Rocha , G. Roudier , L. Salvati , M. Sandri , M. Savelainen , D. Scott , C. Sirignano , G. Sirri , L. D. Spencer , R. Sunyaev , A. -S. Suur-Uski , J. A. Tauber , D. Tavagnacco , M. Tenti , L. Toffolatti , M. Tomasi , M. Tristram , T. Trombetti , J. Valiviita , F. Vansyngel , B. Van Tent , L. Vibert , P. Vielva , F. Villa , N. Vittorio , B. D. Wandelt , I. K. Wehus , A. Zonca

We present an analysis of Kitt Peak National Observatory and Lowell Observatory observations of comet 103P/Hartley 2 obtained from August through December 2010. The results are then compared with contemporaneous observations made by the…

地球与行星天体物理 · 物理学 2015-05-13 Matthew M. Knight , Beatrice E. A. Mueller , Nalin H. Samarasinha , David G. Schleicher

Measurement of the global 21-cm signal during Cosmic Dawn (CD) and the Epoch of Reionization (EoR) is made difficult by bright foreground emission which is 2-5 orders of magnitude larger than the expected signal. Fitting for a…

宇宙学与河外天体物理 · 物理学 2024-02-20 Michael Pagano , Peter Sims , Adrian Liu , Dominic Anstey , Will Handley , Eloy De Lera Acedo

We present an automated, DAOFind-based pipeline developed to reprocess J-band Atlas All Sky Release Survey Images from the Two Micron All Sky Survey (2MASS). By optimizing the detection parameters and implementing a screening procedure that…

天体物理仪器与方法 · 物理学 2026-01-27 Zehao Liu , Xiyan Peng , Zhenghong Tang , Zhaoxiang Qi , Shilong Liao , Yong Yu

Context. Modern space telescopes are currently providing high-precision light curves for a large fraction of the sky, such that many new variable stars are being discovered. However, some stars have periodic variability with periods of…

太阳与恒星天体物理 · 物理学 2019-08-28 Dominic M. Bowman , Daniel L. Holdsworth

$ $Future surveys could obtain tighter constraints on the cosmological parameters with the galaxy power spectrum than with the Cosmic Microwave Background. However, the inclusion of multiple overlapping tracers, redshift bins, and more…

宇宙学与河外天体物理 · 物理学 2024-09-24 Yan Lai , Cullan Howlett , Tamara M. Davis

We present new full-sky temperature and polarization maps in five frequency bands from 23 to 94 GHz, based on data from the first five years of the WMAP sky survey. The five-year maps incorporate several improvements in data processing made…

Accurate communication performance prediction is crucial for wireless applications such as network deployment and resource management. Unlike conventional systems with a single transmit and receive antenna, throughput (Tput) estimation in…

信息论 · 计算机科学 2025-04-02 Fan-Hao Lin , Tzu-Hao Huang , Chao-Kai Wen , Trung Q. Duong

$Context.$ The traditional approach to characterize the structure of molecular clouds is to map their line emission. $Aims.$ We aim to test and apply a stratified random sampling technique that can characterize the line emission from…

星系天体物理 · 物理学 2021-02-17 M. Tafalla , A. Usero , A. Hacar

The global 21 cm signal from Cosmic Dawn (CD) and the Epoch of Reionization (EoR), at redshifts $z \sim 6-30$, probes the nature of first sources of radiation as well as physics of the Inter-Galactic Medium (IGM). Given that the signal is…

Active symmetry control - a central challenge in materials science, particularly in ferroelectrics - is achieved via mechanically assisted poling (MAP) guided by thermodynamics and phase - field modeling. This approach yields extraordinary…

Studies of Galactic structure and evolution have benefitted enormously from Gaia kinematic information, though additional, intrinsic stellar parameters like age are required to best constrain Galactic models. Asteroseismology is the most…