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We present a community study exploring the low frequency (5 - 800 MHz) options and opportunities for the ngVLA project and its infrastructure. We describe a Next Generation LOw Band Observatory (ngLOBO) that will provide access to the low…

We conducted an all-sky imaging transient search with the Owens Valley Radio Observatory Long Wavelength Array (OVRO-LWA) data collected during the Perseid meteor shower in 2018. The data collection during the meteor shower was motivated to…

地球与行星天体物理 · 物理学 2024-03-12 S. S. Varghese , J. Dowell , K. S. Obenberger , G. B. Taylor , M. Anderson , G. Hallinan

Our collaboration has set up a focal plane detection system and a focal plane polarimeter at the large acceptance Big-Bite Spectrometer at AGOR. The detector systems are equipped with a high performance readout and online data processing…

核实验 · 物理学 2017-08-23 H. J. Woertche

We consider the capabilities for detecting low order CO emission lines from high-z galaxies using the next generation of radio telescopes operating at 22 and 43 GHz. We employ models for the evolution of dusty star forming galaxies based on…

天体物理学 · 物理学 2009-11-07 C. L. Carilli , A. W. Blain

The next decade is expected to see the launch of one or more space based gravitational wave detectors: the European lead Laser Interferometer Space Antenna (LISA); and one or more Chinese mission concepts, Taiji and TianQin. One of the…

广义相对论与量子宇宙学 · 物理学 2022-02-16 Neil J. Cornish

Perceptive mobile networks (PMNs), integrating ubiquitous sensing capabilities into mobile networks, represent an important application of integrated sensing and communication (ISAC) in 6G. In this paper, we propose a practical framework…

信号处理 · 电气工程与系统科学 2025-03-14 Liangbin Zhao , Zhitong Ni , Yimeng Feng , Jianguo Li , Xiangyuan Bu , J. Andrew Zhang

We present a sample of nearby dwarf galaxies with radio-selected accreting massive black holes (BHs), the majority of which are non-nuclear. We observed 111 galaxies using sensitive, high-resolution observations from the Karl G. Jansky Very…

星系天体物理 · 物理学 2020-02-05 Amy Reines , James Condon , Jeremy Darling , Jenny Greene

LIGO --- The Laser Interferometer Gravitational-Wave Observatory --- is one of several large projects being undertaken in the United States, Europe and Japan to detect gravitational radiation. The novelty and precision of these instruments…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Lee Samuel Finn

Observing nearby galaxies would facilitate the search for artificial radio signals by sampling many billions of stars simultaneously, but few efforts have been made to exploit this opportunity. An added attraction is that the Milky Way is…

地球与行星天体物理 · 物理学 2018-01-09 Robert H. Gray , Kunal P. Mooley

The Gamma-ray Large Area Space Telescope (GLAST) is an observatory designed to perform gamma-ray astronomy in the energy range 20 MeV to 300 GeV, with supporting measurements for gamma-ray bursts from 10 keV to 25 MeV. GLAST will be…

天体物理学 · 物理学 2009-06-23 D. Paneque , A. Borgland , A. Bovier , E. Bloom , Y. Edmonds , S. Funk , G. Godfrey , R. Rando , L. Wai , P. Wang

We present first results of a four-epoch VLBA survey for nonthermal emission toward all 556 compact radio sources previously identified in a deep VLA survey of the Orion Nebula Cluster (ONC). We identify VLBA counterparts toward an…

太阳与恒星天体物理 · 物理学 2021-01-13 Jan Forbrich , Sergio A. Dzib , Mark J. Reid , Karl M. Menten

We present deep 1.4GHz Very Large Array (VLA) radio continuum observations of two ~half square degree fields in the Coma cluster of galaxies. The two fields, "Coma 1" and "Coma 3," correspond to the cluster core and southwest infall region…

宇宙学与河外天体物理 · 物理学 2009-11-13 Neal A. Miller , Ann E. Hornschemeier , Bahram Mobasher

The Gamma Ray Energy Tracking Array (GRETA) is a 4-{\pi} detector system, currently under development, capable of determining energy, timing and tracking of multiple gamma-ray interactions inside germanium crystals as demonstrated in the…

仪器与探测器 · 物理学 2020-11-03 Thorsten Stezelberger , John Joseph , Vamsi Vytla , Sergio Zimmermann

We have used a relatively long, contiguous VHF observation of a bright cosmic radio source (Cygnus A) with the Very Large Array (VLA) to demonstrate the capability of this instrument to study the ionosphere. This interferometer, and others…

空间物理 · 物理学 2015-06-03 J. F. Helmboldt , T. J. W. Lazio , H. T. Intema , K. F. Dymond

Orbital angular momentum (OAM) detection underpins almost all aspects of vortex beams' advances such as communication and quantum analogy. Conventional schemes are frustrated by low speed, complicated system, limited detection range. Here,…

新兴技术 · 计算机科学 2022-09-07 Hao Wang , Ziyu Zhan , Futai Hu , Yuan Meng , Zeqi Liu , Xing Fu , Qiang Liu

Large LAr TPCs are among the most powerful detectors to address open problems in particle and astro-particle physics, such as CP violation in leptonic sector, neutrino properties and their astrophysical implications, proton decay search…

仪器与探测器 · 物理学 2009-08-06 C. Girerd , D. Autiero , B. Carlus , S. Gardien , J. Marteau , W. Tromeur

The Laser Interferometer Space Antenna (LISA) is a planned space-based observatory to measure gravitational waves in the millihertz frequency band. This frequency band is expected to be dominated by signals from millions of Galactic…

广义相对论与量子宇宙学 · 物理学 2024-06-04 Stefan H. Strub , Luigi Ferraioli , Cédric Schmelzbach , Simon C. Stähler , Domenico Giardini

We experimentally demonstrate optical detection at 12.5~bits per incident photon, 9.4~dB higher than the theoretical limit of conventional coherent detection. A single laser transmits both data and optical clock, undergoes 77~dB of…

Extremely large-scale antenna arrays (ELAA) play a critical role in enabling the functionalities of next generation wireless communication systems. However, as the number of antennas increases, ELAA systems face significant bottlenecks,…

信息论 · 计算机科学 2025-02-10 Yanqing Xu , Erik G. Larsson , Eduard A. Jorswieck , Xiao Li , Shi Jin , Tsung-Hui Chang

The Cherenkov Telescope Array (CTA) Observatory must be capable of issuing fast alerts on variable and transient sources to maximize the scientific return. This will be accomplished by means of a Real-Time Analysis (RTA) pipeline, a key…

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