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The treatment of chemical mixing in the radiative envelopes of intermediate-mass stars has hardly been calibrated so far. Recent asteroseismic studies demonstrated that a constant diffusion coefficient in the radiative envelope is not able…

Solar and Stellar Astrophysics · Physics 2022-02-09 Joey S. G. Mombarg , Aaron Dotter , Michel Rieutord , Mathias Michielsen , Timothy Van Reeth , Conny Aerts

In the first paper of this series, we studied the effect of baryon acoustic oscillations (BAO), redshift space distortions (RSD) and weak lensing (WL) on measurements of angular cross-correlations in narrow redshift bins. Paper-II presented…

Cosmology and Nongalactic Astrophysics · Physics 2021-06-09 Martin Eriksen , Enrique Gaztanaga

Extensive photometric surveys are and will continue producing massive amounts of data on small bodies. Usually, these data will be sparsely obtained at arbitrary (and unknown)rotational phases. Therefore, new methods to process such data…

Earth and Planetary Astrophysics · Physics 2022-01-19 A. Alvarez-Candal , P. G. Benavidez , A. Campo Bagatin , T. Santana-Ros

We outline how redshift-space distortions (RSD) can be measured from the angular correlation function w({\theta}), of galaxies selected from photometric surveys. The natural degeneracy between RSD and galaxy bias can be minimized by…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-18 Ashley J Ross , Will J Percival , Martin Crocce , Anna Cabre , Enrique Gaztanaga

The spatial variation in martensite tetragonality (c/a ratio) in Fe-0.77C (wt.%) alloy was investigated by means of pattern matching of electron backscatter diffraction patterns combined with high angular resolution electron backscatter…

Materials Science · Physics 2020-12-02 Tomohito Tanaka , Nozomu Nakamura , Angus J. Wilkinson

Theoretically self-consistent calculations for photoionization and (e + ion) recombination are described. An identical eigenfunction expansion for the ion is employed in coupled channel calculations for both processes, thus ensuring…

Astrophysics · Physics 2007-05-23 Sultana N. Nahar

An extremely high-resolution (> 10^5) high-S/N (> 10^3) solar spectrum has been used to measure 15 very weak first overtone (Delta v = 2) infrared OH lines, resulting in a low solar abundance of A(O) ~ 8.6 when MARCS, 3D, and spatially and…

Astrophysics · Physics 2009-11-10 Jorge Melendez

A theoretical framework is presented for the computation of rovibrational polaritonic states of a molecule in a lossless infrared (IR) microcavity. In the proposed approach the quantum treatment of the rotational and vibrational motion of…

Chemical Physics · Physics 2023-10-30 Tamás Szidarovszky

We develop a new method of combining cluster observables (number counts and cluster-cluster correlation functions) and stacked weak lensing signals of background galaxy shapes, both of which are available in a wide-field optical imaging…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-17 Masamune Oguri , Masahiro Takada

We present multi-configuration Breit-Pauli AUTOSTRUCTURE calculations of distorted-wave photoionization (PI) cross sections, and total and partial final-state resolved radiative recombination (RR) and dielectronic recombination (DR) rate…

Solar and Stellar Astrophysics · Physics 2015-05-27 N. C. Sterling , Michael C. Witthoeft

Structures in the invariant mass distribution are often linked to unstable intermediate states or resonances. In experiments, many signals are detected which have broad, overlapping or intricate profiles, which makes their characterization…

High Energy Physics - Phenomenology · Physics 2025-06-06 Adam B. Mapa , Denny Lane B. Sombillo

Dynamic contrast-enhanced (DCE) MRI is essential for breast cancer diagnosis and treatment. However, its reliance on contrast agents introduces safety concerns, contraindications, increased cost, and workflow complexity. To this end, we…

Image and Video Processing · Electrical Eng. & Systems 2025-09-16 Sebastian Ibarra , Javier del Riego , Alessandro Catanese , Julian Cuba , Julian Cardona , Nataly Leon , Jonathan Infante , Karim Lekadir , Oliver Diaz , Richard Osuala

Modelling of stellar radiative intensities in various spectral pass-bands plays an important role in stellar physics. At the same time the direct calculations of the high-resolution spectrum and then integrating it over the given spectral…

Solar and Stellar Astrophysics · Physics 2021-06-30 L. S. Anusha , A. I. Shapiro , V. Witzke , M. Cernetic , S. K. Solanki , L. Gizon

We present ISO-LWS measurements of the main gas cooling lines, C+ 158 mum and O 63 mum towards a moderate opacity molecular cloud (Av=3), L1721, illuminated by the B2 star nu Sco (X = 5-10). These data are combined with an extinction map…

We present the hybrid opacity code SCO-RCG which combines statistical approaches with fine-structure calculations. Radial integrals needed for the computation of detailed transition arrays are calculated by the code SCO (Super-configuration…

Atomic Physics · Physics 2019-04-30 Jean-Christophe Pain , Franck Gilleron , Quentin Porcherot , Thomas Blenski

We construct updated solar models with different sets of solar abundances, including the most recent determinations by Asplund et al. (2009). The latter work predicts a larger ($\sim 10%$) solar metallicity compared to previous measurements…

Solar and Stellar Astrophysics · Physics 2011-03-31 Aldo Serenelli , Sarbani Basu , Jason W. Ferguson , Martin Asplund

This study investigates the variability of the theoretical correction factor, $f_{\Delta \nu}$, used in red giant branch (RGB) scaling relations, arising from different assumptions in stellar model computations. Adopting a commonly used…

Solar and Stellar Astrophysics · Physics 2025-05-13 G. Valle , M. Dell'Omodarme , P. G. Prada Moroni , S. Degl'Innocenti

The evanescent wave coronagraph uses the principle of frustrated total internal reflection (FTIR) to suppress the light coming from the star and study its close environment. Its focal plane mask is composed of a lens and a prism placed in…

Fewer than 1% of all exoplanets detected to date have been characterized on the basis of spectroscopic observations of their atmosphere. Unlike indirect methods, high-contrast imaging offers access to atmospheric signatures by separating…

Instrumentation and Methods for Astrophysics · Physics 2020-04-08 Axel Potier , Pierre Baudoz , Raphaël Galicher , Garima Singh , Anthony Boccaletti

Radiative transfer calculations have been produced over the years for many lines and continua in the UV wavelength range of solar and cool stellar atmospheres for a variety of conditions. Despite significant improvements in computing power…

Solar and Stellar Astrophysics · Physics 2025-08-11 R. P. Dufresne , G. Del Zanna , C. M. J. Osborne