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We compute the projected sensitivity to dark matter (DM) particles in the sub-GeV mass range of future direct detection experiments using germanium and silicon semiconductor targets. We perform this calculation within the dark photon model…

高能物理 - 唯象学 · 物理学 2020-06-03 Erik Andersson , Alex Bökmark , Riccardo Catena , Timon Emken , Henrik Klein Moberg , Emil Åstrand

Flexible and fast control of the phase and amplitude of coherent light, enabled by digital micromirror devices (DMDs) and spatial light modulators (SLMs), has been a driving force for recent advances in optical tweezers, nonlinear…

光学 · 物理学 2021-07-07 Ruslan Röhrich , Femius Koenderink , Stefan Witte , Lars Loetgering

We present the design, implementation and data taking performance of the MIcrowave Detection of Air Showers (MIDAS) experiment, a large field of view imaging telescope designed to detect microwave radiation from extensive air showers…

Numerical simulations of Milky-Way size Cold Dark Matter (CDM) halos predict a steeply rising mass function of small dark matter subhalos and a substructure count that greatly outnumbers the observed satellites of the Milky Way. Several…

The cosmic Distance Duality Relation (DDR) is a fundamental prediction of metric gravity under photon number conservation. In this work, we perform a model-independent test of the DDR using Pantheon+ type Ia supernovae (SN Ia), \emph{Fermi}…

宇宙学与河外天体物理 · 物理学 2026-04-21 Yukang Xie , Yang Liu , Puxun Wu , Xiangyun Fu , Nan Liang

This paper presents a prototype of an infrared photometer, created at SAI of MSU based on the commercial infrared module Gavin-615A. The operating spectral range of the photometer is 3-5 mkm. Investigations of the photometer's detector have…

天体物理仪器与方法 · 物理学 2024-04-02 S. G. Zheltoukhov , A. M. Tatarnikov , A. A. Belyakova , E. A. Koksharova

Self-consistent simulations of the dynamical evolution of a low-mass satellite galaxy without dark matter are reported. The orbits have eccentricities 0.46 <= e <= 0.96 in a Galactic dark halo resembling our Milky Way. For the simulations,…

天体物理学 · 物理学 2009-10-30 Ralf Klessen , Pavel Kroupa

In this paper we explore the effect of decaying dark matter (DDM) on large-scale structure and possible constraints from galaxy imaging surveys. DDM models have been studied, in part, as a way to address apparent discrepancies between the…

宇宙学与河外天体物理 · 物理学 2015-06-03 Mei-Yu Wang , Andrew R. Zentner

Superheated Droplet Detectors (SDDs) are becoming commonplace in neutron personnel dosimetry. Their total insensitivity to minimum ionizing radiation (while responsive to nuclear recoils of energies ~ few keV), together with their low cost,…

天体物理学 · 物理学 2008-02-03 J. I. Collar , T. A. Girard , D. Limagne , G. Waysand

Mid-infrared (mid-IR) observations of Near-Earth Objects (NEOs) have historically been a valuable tool for understanding their physical properties. However, the current state of mid-IR instruments on ground-based telescopes places several…

地球与行星天体物理 · 物理学 2025-06-18 Andy J. López-Oquendo , Joseph L. Hora , David E. Trilling , Howard A. Smith

The development of systems to measure and optimize emerging energetic material performance is critical for CWA defeat. This study documents a combination of two spectroscopic systems designed to monitor decomposition of a CWA simulant and…

仪器与探测器 · 物理学 2024-12-05 Preetom Borah , Milad Alemohammad , Mark Foster , Timothy P. Weihs

The Simons Observatory (SO) includes four telescopes that will measure the temperature and polarization of the cosmic microwave background using over 60,000 highly sensitive transition-edge bolometers (TES). These multichroic TES bolometers…

In the construction of a space radio telescope, it is essential to use materials with a low noise factor and high mechanical robustness for the antenna surface. We present the results of measurements of the reflection performance of two…

天体物理仪器与方法 · 物理学 2015-05-27 Kazuhisa Kamegai , Masato Tsuboi , Akihiro Doi , Eiichi Sato

The dynamical behavior of the magnetism of diluted magnetic semiconductors (DMS) has been investigated by means of atomistic spin dynamics simulations. The conclusions drawn from the study are argued to be general for DMS systems in the low…

材料科学 · 物理学 2014-04-04 J. Hellsvik , B. Skubic , L. Nordström , B. Sanyal , O. Eriksson , P. Nordblad , P. Svedlindh

The interdependence of luminosity distance, $D_L$ and angular diameter distance, $D_A$ given by the distance duality relation (DDR) is very significant in observational cosmology. It is very closely tied with the temperature- redshift…

宇宙学与河外天体物理 · 物理学 2016-07-27 Akshay Rana , Deepak Jain , Shobhit Mahajan , Amitabha Mukherjee

The NASA Orbital Debris Observatory (NODO) astronomical survey uses a transit 3-m liquid mirror telescope to observe a strip of sky in 20 narrow-band filters. In this article, we analyze a subset of data from the 1996 observing season. The…

天体物理学 · 物理学 2016-08-30 R. Cabanac , E. F. Borra , M. Beauchemin

The SuperCDMS experiment is designed to directly detect weakly interacting massive particles (WIMPs) that may constitute the dark matter in our Galaxy. During its operation at the Soudan Underground Laboratory, germanium detectors were run…

宇宙学与河外天体物理 · 物理学 2018-01-24 SuperCDMS Collaboration , R. Agnese , A. J. Anderson , T. Aralis , T. Aramaki , I. J. Arnquist , W. Baker , D. Balakishiyeva , D. Barker , R. Basu Thakur , D. A. Bauer , T. Binder , M. A. Bowles , P. L. Brink , R. Bunker , B. Cabrera , D. O. Caldwell , R. Calkins , C. Cartaro , D. G. Cerdeno , Y. Chang , H. Chagani , Y. Chen , J. Cooley , B. Cornell , P. Cushman , M. Daal , P. C. F. Di Stefano , T. Doughty , L. Esteban , E. Fascione , E. Figueroa-Feliciano , M. Fritts , G. Gerbier , M. Ghaith , G. L. Godfrey , S. R. Golwala , J. Hall , H. R. Harris , Z. Hong , E. W. Hoppe , L. Hsu , M. E. Huber , V. Iyer , D. Jardin , A. Jastram , C. Jena , M. H. Kelsey , A. Kennedy , A. Kubik , N. A. Kurinsky , A. Leder , B. Loer , E. Lopez Asamar , P. Lukens , D. MacDonell , R. Mahapatra , V. Mandic , N. Mast , E. H. Miller , N. Mirabolfathi , R. A. Moffatt , B. Mohanty , J. D. Morales Mendoza , J. Nelson , J. L. Orrell , S. M. Oser , K. Page , W. A. Page , R. Partridge , M. Pepin , M. Penalver Martinez , A. Phipps , S. Poudel , M. Pyle , H. Qiu , W. Rau , P. Redl , A. Reisetter , T. Reynolds , A. Roberts , A. E. Robinson , H. E. Rogers , T. Saab , B. Sadoulet , J. Sander , K. Schneck , R. W. Schnee , S. Scorza , K. Senapati , B. Serfass , D. Speller , M. Stein , J. Street , H. A. Tanaka , D. Toback , R. Underwood , A. N. Villano , B. von Krosigk , B. Welliver , J. S. Wilson , M. J Wilson , D. H. Wright , S. Yellin , J. J. Yen , B. A. Young , X. Zhang , X. Zhao

Infrared-blocking, aerogel-based scattering filters have a broad range of potential applications in astrophysics and planetary science instruments in the far-infrared, sub-millimeter, and microwave regimes. This paper demonstrates the…

Levitated oscillators with millimeter or sub-millimeter size are particularly attractive due to their potential role in studying various fundamental problems and practical applications. One of the crucial issues towards these goals is to…

量子物理 · 物理学 2021-07-21 Fang Xiong , Peiran Yin , Tong Wu , Han Xie , Rui Li , Yingchun Leng , Yanan Li , Changkui Duan , Xi Kong , Pu Huang , Jiangfeng Du