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These Faraday rotation calculations of hot, thick accretion flows are motivated by the measured steady rotation measure (RM) of $\approx -6 \times 10^5$ rad m$^{-2}$ from Sgr A*. In our numerical simulations, the quasi-steady state…

天体物理学 · 物理学 2011-02-11 Prateek Sharma , Eliot Quataert , James M. Stone

In the absence of any unseen planetary-mass bodies in the outer solar system, the mean plane of the distant Kuiper belt should be the same as the plane orthogonal to the angular momentum vector of the solar system -- the invariable plane.…

地球与行星天体物理 · 物理学 2025-09-10 Amir Siraj , Christopher F. Chyba , Scott Tremaine

To deepen our understanding of the role of small-scale magnetic fields in active regions (ARs) and in the quiet Sun (QS) on the solar irradiance, it is fundamental to investigate the physical processes underlying their continuum brightness.…

太阳与恒星天体物理 · 物理学 2014-02-17 P. Kobel , S. K. Solanki , J. M. Borrero

Measurements of global spin alignment of vector mesons in relativistic heavy-ion collisions can provide unique insights into spin-orbit interactions and vector meson dynamics in the Quark-Gluon Plasma (QGP) produced in those collisions. The…

数据分析、统计与概率 · 物理学 2025-02-19 C. W. Robertson , Yicheng Feng , Fuqiang Wang

This is the last of three papers describing an `absolute' calibration of the GONG magnetograph using and end-to-end simulation of its measurement process. The simulation begins with a MURaM 3D MHD datacube and ends with a `synthetic…

太阳与恒星天体物理 · 物理学 2020-11-04 Joseph Plowman , Thomas Berger

We present the third installment of the Yale/San Juan Southern Proper Motion Catalog, SPM3. Absolute proper motions, positions, and photographic B,V photometry are given for roughly 10.7 million objects, primarily stars, down to a magnitude…

天体物理学 · 物理学 2009-11-10 T. M. Girard , D. I. Dinescu , W. F. van Altena , I. Platais , D. G. Monet , C. E. Lopez

Sensing vector magnetic fields is critical to many applications in fundamental physics, bioimaging, and material science. Magnetic-field sensors exploiting nitrogen-vacancy (NV) centers are particularly compelling as they offer high…

We present details of a high-accuracy absolute scalar magnetometer based on pulsed proton NMR. The $B$-field magnitude is determined from the precession frequency of proton spins in a cylindrical sample of water after accounting for field…

仪器与探测器 · 物理学 2021-12-23 D. Flay , D. Kawall , T. Chupp , S. Corrodi , M. Farooq , M. Fertl , J. George , J. Grange , R. Hong , R. Osofsky , S. Ramachandran , E. Swanson , P. Winter

Two years ago, the AMS collaboration released the most precise measurement of the cosmic ray positron flux. It confirms that pure secondary predictions fall below the data above 10 GeV, suggesting the presence of a primary component, e.g.…

高能天体物理现象 · 物理学 2017-09-06 M. Boudaud , E. F. Bueno , S. Caroff , Y. Genolini , V. Poulin , V. Poireau , A. Putze , S. Rosier , P. Salati , M. Vecchi

This study presents an effective autofocusing approach for synthetic aperture radar imaging of the human body under conditions of respiratory motion. The proposed method suppresses respiratory-motion-induced phase errors by separating radar…

信号处理 · 电气工程与系统科学 2026-01-13 Masaya Kato , Takuya Sakamoto

Anisotropic multi-slice Cardiac Magnetic Resonance (CMR) Images are conventionally acquired in patient-specific short-axis (SAX) orientation. In specific cardiovascular diseases that affect right ventricular (RV) morphology, acquisitions in…

Small-scale magnetic fields are major contributors to the solar irradiance variations. Hence, the continuum intensity contrast of magnetic elements in the quiet Sun (QS) network and in active region (AR) plage is an essential quantity that…

太阳与恒星天体物理 · 物理学 2015-05-28 P. Kobel , S. K. Solanki , J. M. Borrero

This paper presents a novel semi-automatic image processing technique to estimate accurately, and objectively, the disc parameters of a planetary body on an astronomical image. The method relies on the detection of the limb and/or the…

天体物理仪器与方法 · 物理学 2010-10-07 P. Guio , N. Achilleos

Purpose: Cone-beam CT (CBCT) projection images provide anatomical data in real-time over several respiratory cycles, forming a comprehensive picture of tumor movement. We developed and validated a method which uses these projections to…

医学物理 · 物理学 2015-01-15 Bernard L. Jones , David Westerly , Moyed Miften

Artificial intelligence (AI) techniques have been proposed for automating analysis of short axis (SAX) cine cardiac magnetic resonance (CMR), but no CMR analysis tool exists to automatically analyse large (unstructured) clinical CMR…

We present a system for automated detection, localization, and scoring of arrow punctures on 40\,cm indoor archery target faces, trained on only 48 annotated photographs (5{,}084 punctures). Our pipeline combines three components: a…

计算机视觉与模式识别 · 计算机科学 2026-04-21 Maxwell Shepherd

Context : AKARI is the first Japanese astronomical satellite dedicated to infrar ed astronomy. One of the main purposes of AKARI is the all-sky survey performed with six infrared bands between 9 and 200um during the period from 2006 May 6…

We present a measurement of the combined $\nu_e$ + $\bar{\nu}_e$ flux-averaged charged-current inclusive cross section on argon using data from the MicroBooNE liquid argon time projection chamber (LArTPC) at Fermilab. Using the off-axis…

高能物理 - 实验 · 物理学 2021-09-15 MicroBooNE collaboration , P. Abratenko , M. Alrashed , R. An , J. Anthony , J. Asaadi , A. Ashkenazi , S. Balasubramanian , B. Baller , C. Barnes , G. Barr , V. Basque , L. Bathe-Peters , O. Benevides Rodrigues , S. Berkman , A. Bhanderi , A. Bhat , M. Bishai , A. Blake , T. Bolton , L. Camilleri , D. Caratelli , I. Caro Terrazas , R. Castillo Fernandez , F. Cavanna , G. Cerati , Y. Chen , E. Church , D. Cianci , J. M. Conrad , M. Convery , L. Cooper-Troendle , J. I. Crespo-Anadon , M. Del Tutto , S. R. Dennis , D. Devitt , R. Diurba , L. Domine , R. Dorrill , K. Duffy , S. Dytman , B. Eberly , A. Ereditato , L. Escudero Sanchez , J. J. Evans , G. A. Fiorentini Aguirre , R. S. Fitzpatrick , B. T. Fleming , N. Foppiani , D. Franco , A. P. Furmanski , D. Garcia-Gamez , S. Gardiner , G. Ge , S. Gollapinni , O. Goodwin , E. Gramellini , P. Green , H. Greenlee , W. Gu , R. Guenette , P. Guzowski , L. Hagaman , E. Hall , P. Hamilton , O. Hen , C. Hill , G. A. Horton-Smith , A. Hourlier , R. Itay , C. James , J. Jan de Vries , X. Ji , L. Jiang , J. H. Jo , R. A. Johnson , Y. J. Jwa , N. Kamp , N. Kaneshige , G. Karagiorgi , W. Ketchum , B. Kirby , M. Kirby , T. Kobilarcik , I. Kreslo , R. LaZur , I. Lepetic , K. Li , Y. Li , B. R. Littlejohn , D. Lorca , W. C. Louis , X. Luo , A. Marchionni , C. Mariani , D. Marsden , J. Marshall , J. Martin-Albo , D. A. Martinez Caicedo , K. Mason , A. Mastbaum , N. McConkey , V. Meddage , T. Mettler , K. Miller , J. Mills , K. Mistry , T. Mohayai , A. Mogan , J. Moon , M. Mooney , A. F. Moor , C. D. Moore , L. Mora Lepin , J. Mousseau , M. Murphy , D. Naples , A. Navrer-Agasson , R. K. Neely , P. Nienaber , J. Nowak , O. Palamara , V. Paolone , A. Papadopoulou , V. Papavassiliou , S. F. Pate , A. Paudel , Z. Pavlovic , E. Piasetzky , I. Ponce-Pinto , D. Porzio , S. Prince , X. Qian , J. L. Raaf , V. Radeka , A. Rafique , M. Reggiani-Guzzo , L. Ren , L. Rochester , J. Rodriguez Rondon , H. E. Rogers , M. Rosenberg , M. Ross-Lonergan , B. Russell , G. Scanavini , D. W. Schmitz , A. Schukraft , W. Seligman , M. H. Shaevitz , R. Sharankova , J. Sinclair , A. Smith , E. L. Snider , M. Soderberg , S. Soldner-Rembold , S. R. Soleti , P. Spentzouris , J. Spitz , M. Stancari , J. St. John , T. Strauss , K. Sutton , S. Sword-Fehlberg , A. M. Szelc , N. Tagg , W. Tang , K. Terao , C. Thorpe , M. Toups , Y. -T. Tsai , M. A. Uchida , T. Usher , W. Van De Pontseele , B. Viren , M. Weber , H. Wei , Z. Williams , S. Wolbers , T. Wongjirad , M. Wospakrik , W. Wu , E. Yandel , T. Yang , G. Yarbrough , L. E. Yates , G. P. Zeller , J. Zennamo , C. Zhang

We analyze stellar proper motions in the COSMOS field to assess the presence of bulk motions. At bright magnitudes (G-band 18.5--20.76 AB), we use the proper motions of 1,010 stars in the Gaia DR2 catalog. At the faint end, we computed…

Cardiac MR image segmentation is essential for the morphological and functional analysis of the heart. Inspired by how experienced clinicians assess the cardiac morphology and function across multiple standard views (i.e. long- and…

图像与视频处理 · 电气工程与系统科学 2019-12-18 Chen Chen , Carlo Biffi , Giacomo Tarroni , Steffen Petersen , Wenjia Bai , Daniel Rueckert