English
Related papers

Related papers: The Binary Broadening Function

200 papers

In high dispersion spectra of rotating bodies such as stars and planets, the rotation contributes significantly to, and sometimes dominates, the line broadening. We present a simple method for rotationally broadening large wavelength ranges…

Instrumentation and Methods for Astrophysics · Physics 2023-05-18 Adolfo S. Carvalho , Christopher M. Johns-Krull

We propose a framework for bilinear multiplier operators defined via the (bivariate) spectral theorem. Under this framework we prove Coifman-Meyer type multiplier theorems and fractional Leibniz rules. Our theory applies to bilinear…

Functional Analysis · Mathematics 2016-09-06 Błażej Wróbel

The paper describes the multiple rotating frame technique for designing modulated rf-fields, that perform broadband heteronuclear decoupling in solution NMR spectroscopy. The decoupling is understood by performing a sequence of coordinate…

Quantum Physics · Physics 2015-05-19 Haribabu Arthanari , Gerhard Wagner , Navin Khaneja

High-precision radial-velocity techniques, which enabled the detection of extrasolar planets are now sensitive to relativistic effects in the data of spectroscopic binary stars (SBs). We show how these effects can be used to derive the…

Astrophysics · Physics 2009-11-11 Shay Zucker , Tal Alexander

The characterization of a binary function by partial frequency information is considered. We show that it is possible to reconstruct binary signals from incomplete frequency measurements via the solution of a simple linear optimization…

Information Theory · Computer Science 2012-04-19 Yu Mao

Incomplete binary mixing of two components can form a heterogeneous assemblage in space. The heterogeneity power spectrum of the assemblage can be frequently obtained. However, it is unknown if a stochastic binary field exists to generate…

Geophysics · Physics 2019-02-20 Jiaxuan Li , Yingcai Zheng

An extended Wigner function formalism is introduced for describing the quantum dynamics of particles with internal degrees of freedom in the presence of spatially inhomogeneous fields. The approach is used for quantitative simulations of…

Quantum Physics · Physics 2014-05-09 Marcel Utz , Malcolm H Levitt , Nathan Cooper , Hendrik Ulbricht

In this paper the improved multipolar model of bremsstrahlung accompanied the $\alpha$-decay is presented. The angular formalism of calculations of the matrix elements, being enough complicated component of the model, is stated in details.…

Nuclear Theory · Physics 2008-07-24 Sergei P. Maydanyuk

Spectral computed tomography (CT) has a great potential in material identification and decomposition. To achieve high-quality material composition images and further suppress the x-ray beam hardening artifacts, we first propose a one-step…

Computer Vision and Pattern Recognition · Computer Science 2020-01-08 Weiwen Wu , Qian Wang , Fenglin Liu , Yining Zhu , Hengyong Yu

Bilateral filter (BF) is a fast, lightweight and effective tool for image denoising and well extended to point cloud denoising. However, it often involves continual yet manual parameter adjustment; this inconvenience discounts the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-31 Huajian Si , Zeyong Wei , Zhe Zhu , Honghua Chen , Dong Liang , Weiming Wang , Mingqiang Wei

Basis Function (BF) expansions are a cornerstone of any engineer's toolbox for computational function approximation which shares connections with both neural networks and Gaussian processes. Even though BF expansions are an intuitive and…

Signal Processing · Electrical Eng. & Systems 2024-08-15 Anton Kullberg , Frida Viset , Isaac Skog , Gustaf Hendeby

Speckled images of a binary broad band light source (600-670 nm), generated by randomized reflections or transmissions, were used to reconstruct a binary image by use of multi-frame blind deconvolution algorithms. Craft store glitter was…

Instrumentation and Methods for Astrophysics · Physics 2016-01-05 Xiaopeng Peng , Garreth J. Ruane , Grover A. Swartzlander

The bispectrum, the three-point correlation in Fourier space, is a crucial statistic for studying many effects targeted by the next-generation galaxy surveys, such as primordial non-Gaussianity (PNG) and general relativistic (GR) effects on…

Cosmology and Nongalactic Astrophysics · Physics 2023-12-27 Joshua N. Benabou , Adriano Testa , Chen Heinrich , Henry S. Grasshorn Gebhardt , Olivier Doré

The complexity of composite spectra of close binary star system makes study of the spectra of their component stars extremely difficult. For this reason there exists very little information on the photospheric chemical composition of stars…

Solar and Stellar Astrophysics · Physics 2014-03-05 K. Pavlovski , J. Southworth

We demonastrate experimental technique for generating spatially single-mode broadband biphoton field. The method is based on dispersive optical element which precisely tailors the structure of type-I SPDC frequency angular spectrum in order…

Quantum Physics · Physics 2015-08-19 K. G. Katamadze , N. A. Borshchevskaya , I. V. Dyakonov , A. V. Paterova , S. P. Kulik

The formation of brown dwarfs (BDs) poses a key challenge to star formation theory. The observed dearth of nearby ($\leq 5$ AU) brown dwarf companions to solar-mass stars, known as the brown dwarf desert, as well as the tendency for…

Solar and Stellar Astrophysics · Physics 2015-03-20 Peter H. Jumper , Robert T. Fisher

Several improvements in numerical methods and gauge choice are presented that make it possible now to perform simulations of the merger and ringdown phases of "generic" binary black-hole evolutions using the pseudo-spectral evolution code…

General Relativity and Quantum Cosmology · Physics 2013-05-29 Béla Szilágyi , Lee Lindblom , Mark A. Scheel

Circumbinary planets - planets that orbit both stars in a binary system - offer the opportunity to study planet formation and orbital migration in a different environment compare to single stars. However, despite the fact that > 90% of…

The problem of constructing flexible stochastic models to describe the variability in shape of solid particles is challenging. Natural objects often exhibit mono- or multi-fractal features, i.e. irregular shapes and self-similar patterns.…

Statistics Theory · Mathematics 2019-01-24 Alfredo Alegría

The surface brightness fluctuations (SBF) method is a statistical method applied on image pixels in different bands. This contribution aims to distinguish between the observational (statistical) method and the theoretical (probabilistic)…

Astrophysics · Physics 2007-05-23 M. Cervino , V. Luridiana , L. Jamet