English
Related papers

Related papers: Quantitative comparison of opacities calculated us…

200 papers

We use a spatial light modulator in a diffraction tomographic system to assess the accuracy of different refractive index reconstruction algorithms. Optical phase conjugation principles through complex media, allows us to quantify the error…

We consider an ensemble of diatomic molecules resonantly coupled to an optical cavity under strong coupling conditions at normal incidence. Photodissociation dynamics is examined via direct numerical integration of the coupled…

Chemical Physics · Physics 2023-03-08 Maxim Sukharev , Joseph Subotnik , Abraham Nitzan

The knowledge of isotopic and elemental abundances of the pristine solar system material provides a fundamental test of galactic chemical evolution models, while the composition of the solar photosphere is a reference pattern to understand…

Astrophysics · Physics 2009-11-11 L. Piersanti , O. Straniero , S. Cristallo

We investigate the influence of both a new generation of low-temperature opacities and of various amounts of alpha-element enhancements on stellar evolution models. New stellar models with two different alpha-element mixtures and two sets…

Astrophysics · Physics 2007-05-23 A. Weiss , M. Salaris , J. W. Ferguson , D. R. Alexander

We present high-resolution mass reconstructions for five massive cluster-lenses spanning a redshift range from z = 0.18 - 0.57 utilizing archival Hubble Space Telescope data and applying galaxy-galaxy lensing techniques. These detailed mass…

Astrophysics · Physics 2007-05-23 Priyamvada Natarajan , Jean-Paul Kneib , Ian Smail , Richard Ellis

End-to-end optimization, which simultaneously optimizes optics and algorithms, has emerged as a powerful data-driven method for computational imaging system design. This method achieves joint optimization through backpropagation by…

Computer Vision and Pattern Recognition · Computer Science 2025-08-08 Chi-Jui Ho , Yash Belhe , Steve Rotenberg , Ravi Ramamoorthi , Tzu-Mao Li , Nicholas Antipa

We have developed x-ray diffraction measurements with high energy-resolution and accuracy to study water structure at three different temperatures (7, 25 and 66 C) under normal pressure. Using a spherically curved Ge crystal an energy…

Soft Condensed Matter · Physics 2017-09-13 Congcong Huang , K. T. Wikfeldt , D. Nordlund , U. Bergmann , T. McQueen , J. Sellberg , L. G. M. Pettersson , A. Nilsson

[abridged] Aims. The aim of the present paper is to provide new and more detailed relations at the kpc scale between the gas surface density and the face-on optical depth directly calibrated on galaxies, in order to compute the attenuation…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 M. Boquien , A. Boselli , V. Buat , M. Baes , G. Bendo , S. Boissier , L. Ciesla , A. Cooray , L. Cortese , S. Eales , J. Koda , V. Lebouteiller , I. de Looze , M. W. L. Smith , L. Spinoglio , C. D. Wilson

The ever-changing transparency of the Martian atmosphere hinders the determination of absolute surface colour from spacecraft images. While individual high-resolution images from low orbit reveal numerous colour details of the geology, the…

Earth and Planetary Astrophysics · Physics 2024-10-29 G. G. Michael , D. Tirsch , K. -D. Matz , W. Zuschneid , E. Hauber , K. Gwinner , S. Walter , R. Jaumann , T. Roatsch , F. Postberg , J. Liu

In this article, we examine different approaches for calculating low frequency opacities in the warm dense matter regime. The relevance of the average-atom approximation and of different models for calculating opacities, such as the Ziman…

Plasma Physics · Physics 2025-04-04 Mikael Tacu , Jean-Christophe Pain , Matthias Pautard , Christophe Blancard

We study the potential of a large future weak-lensing survey to constrain dark energy properties by using both the number counts of detected galaxy clusters (sensitive primarily to density fluctuations on small scales) and tomographic…

Astrophysics · Physics 2008-11-26 Wenjuan Fang , Zoltan Haiman

Motivated by the solar composition problem and by using the recently developed Linear Solar Model approach, we analyze the role of opacity and metals in the sun. After a brief discussion of the relation between the effects produced by a…

Solar and Stellar Astrophysics · Physics 2011-01-27 F. L. Villante

In a previous paper, we assembled a collection of medium-resolution spectra of 35 carbon stars, covering optical and near-infrared wavelengths from 400 to 2400 nm. The sample includes stars from the Milky Way and the Magellanic Clouds, with…

Solar and Stellar Astrophysics · Physics 2017-05-24 A. Gonneau , A. Lançon , S. C. Trager , B. Aringer , W. Nowotny , R. F. Peletier , P. Prugniel , Y. -P. Chen , M. Lyubenova

Experimentally obtained X-ray diffraction (XRD) patterns can be difficult to solve, precluding the full characterization of materials, pharmaceuticals, and geological compounds. Herein, we propose a method based upon a multi-objective…

Materials Science · Physics 2024-07-09 Stefano Racioppi , Alberto Otero De la Roza , Samad Hajinazar , Eva Zurek

Using the multiconfiguration Dirac-Hartree-Fock and the relativistic configuration interaction methods, a consistent set of transition energies and radiative transition data for the main states of the $2s^2 2p^4$, $2s 2p^5$, $2p^6$, $2s^2…

Atomic Physics · Physics 2021-04-14 C. X. Song , C. Y. Zhang , K. Wang , R. Si , M. Godefroid , P. Jönsson , D. Wei , X. H. Zhao , J. Yan , C. Y. Chen

This work demonstrates the unique approach of introducing divacancy imperfections in topological Stone-Wales type defected graphene quantum dots for harvesting both singlet and triplet excitons, essential for fabricating fluorescent organic…

Mesoscale and Nanoscale Physics · Physics 2022-08-09 Tushima Basak , Tista Basak , Alok Shukla

Calculations of spectral darkening and visibility functions for the brightness oscillations of the Sun resulting from global solar oscillations are presented. This has been done for a broad range of the visible and infrared continuum…

Astrophysics · Physics 2008-03-11 C. Nutto , M. Roth , Y. Zhugzhda , J. Bruls , O. von der Lühe

A collection of Johnson/Cousins photometry for stars with known [Fe/H] is used to generate color-color relations that include the abundance dependence. Literature temperature and bolometric correction dependences are attached to the color…

Astrophysics · Physics 2011-01-27 G. Worthey , H. -c. Lee

New, high-resolution MARCS synthetic spectra have been calculated for more than a dozen mixtures of the metals allowing, in turn, for variations in C:N:O, [CNO/Fe], and enhanced abundances of C, O, Mg, and Si. Bolometric Corrections (BCs)…

Solar and Stellar Astrophysics · Physics 2021-12-15 Don A. VandenBerg , Bengt Edvardsson , Luca Casagrande , Jason W. Ferguson

We demonstrate a method for calculating the neutral B-meson decay constants and mixing matrix elements in unquenched lattice QCD with domain-wall light quarks and static b-quarks. Our computation is performed on the "2+1" flavor gauge…

‹ Prev 1 8 9 10 Next ›