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Understanding large-angular-scale galactic foregrounds is crucial for future CMB experiments aiming to detect $B$-mode polarization from primordial gravitational waves. Traditionally, the dust component has been separated using its…

Cosmology and Nongalactic Astrophysics · Physics 2019-12-18 Guangyu Zhang , Chi-Ting Chiang , Chris Sheehy , Anže Slosar , Jian Wang

Recent studies have demonstrated that gradient matching-based dataset synthesis, or dataset condensation (DC), methods can achieve state-of-the-art performance when applied to data-efficient learning tasks. However, in this study, we prove…

Computer Vision and Pattern Recognition · Computer Science 2022-06-17 Saehyung Lee , Sanghyuk Chun , Sangwon Jung , Sangdoo Yun , Sungroh Yoon

New techniques for the laboratory direct detection of dark matter weakly interacting massive particles (WIMPs) are sensitive to the recoil direction of the struck nuclei. We compute and compare the directional recoil rates…

Astrophysics · Physics 2008-11-26 Moqbil S. Alenazi , Paolo Gondolo

Previous work has argued that, in the framework of plasma dark matter models, the DAMA annual modulation signal can be consistently explained with electron recoils. In the specific case of mirror dark matter, that explanation requires an…

High Energy Physics - Phenomenology · Physics 2018-12-19 R. Foot

Human induced changes in atmospheric aerosols have introduced a climate forcing by modifying cloud droplet number concentration, liquid water, and cloud fraction. This forcing is subject to large uncertainties as cloud adjustments have not…

Atmospheric and Oceanic Physics · Physics 2025-04-10 Tianle Yuan , Hua Song , Robert Wood , Lazaros Oreopoulos , Kerry Meyer , William Smith , Ryan Eastman

In this paper we study the effect of the channeling of ions recoiling from collisions with weakly interacting massive particles (WIMPs) in single crystal detectors. In particular we investigate the possibility that channeling may give rise…

Instrumentation and Methods for Astrophysics · Physics 2015-05-19 Richard J. Creswick , Shmuel Nussinov , Frank T. Avignone

Ship emissions can form linear cloud structures, or ship tracks, when atmospheric water vapor condenses on aerosols in the ship exhaust. These structures are of interest because they are observable and traceable examples of marine cloud…

Image and Video Processing · Electrical Eng. & Systems 2023-08-15 Kelsie M. Larson , Lyndsay Shand , Andrea Staid , Skyler Gray , Erika L. Roesler , Don Lyons

The channeling of the recoiling nucleus in crystalline detectors after a WIMP collision would produce a larger scintillation or ionization signal in direct detection experiments than otherwise expected. I present estimates of channeling…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Graciela B. Gelmini

A low pressure time projection chamber for the detection of WIMPs is discussed. Discrimination against Compton electron background in such a device should be very good, and directional information about the recoil atoms would be obtainable.…

Urban trees help regulate temperature, reduce energy consumption, improve urban air quality, reduce wind speeds, and mitigating the urban heat island effect. Urban trees also play a key role in climate change mitigation and global warming…

Computer Vision and Pattern Recognition · Computer Science 2021-07-08 Emily Waters , Mahdi Maktabdar Oghaz , Lakshmi Babu Saheer

Polarimetry in the far-infrared and submillimeter has been valuable in tracing magnetic fields in bright Galactic Clouds. We discuss the techniques we have developed and trends we have found in polarization vs column density, and vs…

Astrophysics · Physics 2015-06-24 Roger Hildebrand

This data assimilation study exploits infrasound from explosions to probe an atmospheric wind component from the ground up to stratospheric altitudes. Planned explosions of old ammunition in Finland generate transient infrasound waves that…

Atmospheric and Oceanic Physics · Physics 2020-04-28 Javier Amezcua , Sven Peter Näsholm , Erik Mårten Blixt , Andrew J. Charlton-Perez

Multi-wavelength spectroscopy can be used to constrain the dust and gas properties in debris disks. Circumstellar dust absorbs and scatters incident stellar light. The scattered light is sometimes resolved spatially at visual and…

Earth and Planetary Astrophysics · Physics 2015-05-13 Christine H. Chen

Methane is one of the most potent greenhouse gases, and its short atmospheric half-life makes it a prime target to rapidly curb global warming. However, current methane emission monitoring techniques primarily rely on approximate emission…

Geophysics · Physics 2023-08-23 Bertrand Rouet-Leduc , Thomas Kerdreux , Alexandre Tuel , Claudia Hulbert

The possibility of using a trap with ultracold neutrons as a detector of dark matter particles with long-range forces is considered. The basic advantage of the proposed method lies in possibility of detecting the recoil energy 10-7 eV. The…

Nuclear Experiment · Physics 2015-05-18 A. P. Serebrov , O. M. Zherebtsov

Ground segmentation is crucial for terrestrial mobile platforms to perform navigation or neighboring object recognition. Unfortunately, the ground is not flat, as it features steep slopes; bumpy roads; or objects, such as curbs, flower…

Robotics · Computer Science 2022-03-11 Hyungtae Lim , Minho Oh , Hyun Myung

Theoretical analysis and observational evidences indicate that a brown dwarf with effective temperature greater than 1400 K would have dust cloud in its atmosphere. In this letter, we show that dust scattering should yield polarized…

Astrophysics · Physics 2009-11-07 Sujan Sengupta , Vinod Krishan

We consider waveguide array in which defect channels with reduced refractive index are spaced periodically and the light guiding is achieved due to Bragg reflection. We show that tunneling between defects can be inhibited using out-of-phase…

Optics · Physics 2015-05-19 Yaroslav V. Kartashov , Victor A. Vysloukh

Given their extensive geographic coverage, low Earth orbit (LEO) satellites are envisioned to find their way into next-generation (6G) wireless communications. This paper explores space-air-ground integrated networks (SAGINs) leveraging…

Information Theory · Computer Science 2024-12-24 Chao Zhang , Qingchao Li , Chao Xu , Lie-Liang Yang , Lajos Hanzo

Upcoming space-based coronagraphic instruments in the next decade will perform reflected light spectroscopy and photometry of cool, directly imaged extrasolar giant planets. We are developing a new atmospheric retrieval methodology to help…

Instrumentation and Methods for Astrophysics · Physics 2016-12-14 Roxana E. Lupu , Mark S. Marley , Nikole Lewis , Michael Line , Wesley A. Traub , Kevin Zahnle