Articles with "astrophysics" as a keyword



Exploring Absolute Retract in Regular Hayward Black Holes and Their Implications for Astrophysics

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Published in 2025 at "Astronomische Nachrichten"

DOI: 10.1002/asna.20240148

Abstract: In this article, we study and describe the topology of the spherically symmetric and regular (with no singularity in its event horizon) black hole, which is called Hayward black hole. We use the symmetric metric… read more here.

Keywords: hayward black; black hole; astrophysics; topology ... See more keywords

Preface to the 11th International Workshop on Astronomy and Relativistic Astrophysics (IWARA 2024)

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Published in 2025 at "Astronomische Nachrichten"

DOI: 10.1002/asna.20250042

Abstract: This Conference Proceedings volume contains the written versions of most of the contributions presented during the 11th International Workshop on Astronomy and Relativistic Astrophysics (IWARA 2024). The Workshop took place in Machupicchu Pueblo (Aguas Calientes),… read more here.

Keywords: 11th international; international workshop; astrophysics; astronomy ... See more keywords

A comparison of optimisation algorithms for high-dimensional particle and astrophysics applications

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Published in 2021 at "Journal of High Energy Physics"

DOI: 10.1007/jhep05(2021)108

Abstract: Abstract Optimisation problems are ubiquitous in particle and astrophysics, and involve locating the optimum of a complicated function of many parameters that may be computationally expensive to evaluate. We describe a number of global optimisation… read more here.

Keywords: astrophysics; particle astrophysics; optimisation algorithms; optimisation ... See more keywords

An efficient computational method for the approximate solution of nonlinear Lane-Emden type equations arising in astrophysics

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Published in 2018 at "Astrophysics and Space Science"

DOI: 10.1007/s10509-018-3286-1

Abstract: The key purpose of this article is to introduce an efficient computational method for the approximate solution of the homogeneous as well as non-homogeneous nonlinear Lane-Emden type equations. Using proposed computational method given nonlinear equation… read more here.

Keywords: computational method; astrophysics; solution; emden type ... See more keywords

A high-order numerical method for solving nonlinear Lane-Emden type equations arising in astrophysics

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Published in 2018 at "Astrophysics and Space Science"

DOI: 10.1007/s10509-018-3483-y

Abstract: In this paper, some nonlinear Lane-Emden type equations arising in astrophysics are solved by Chebyshev Finite Difference Method. Convergence and error analysis of the method are examined. To show the applicability and efficiency, some astrophysics… read more here.

Keywords: method; astrophysics; nonlinear lane; emden type ... See more keywords
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The Equivalence Principle in the Theory of Variable Rest Mass with Applications in Astrophysics

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Published in 2020 at "Russian Physics Journal"

DOI: 10.1007/s11182-020-02080-w

Abstract: A covariant equation of motion and energy of a body with variable rest mass with dark energy taken into account in the general theory of relativity is considered on the basis of the equivalence principle. read more here.

Keywords: equivalence principle; theory; variable rest; astrophysics ... See more keywords

TIFR treasures for astronomy from ground to space

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Published in 2022 at "Journal of Astrophysics and Astronomy"

DOI: 10.1007/s12036-022-09800-3

Abstract: The infrared astronomy group of the Department of Astronomy and Astrophysics at Tata Institute of Fundamental Research has been pursuing astronomical instrumentation activities since its inception. The group has been routinely involved in a balloon-borne… read more here.

Keywords: treasures astronomy; astronomy; astrophysics; tifr treasures ... See more keywords

Efficacy of galaxy catalogues for following up gravitational wave events

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Published in 2025 at "Journal of Astrophysics and Astronomy"

DOI: 10.1007/s12036-025-10097-1

Abstract: The detection of gravitational waves (GW) by the LIGO-Virgo-KAGRA (LVK) network has opened up a new era in astrophysics. The identification of the electromagnetic counterparts of GW sources is crucial for multi-messenger astronomy, one way… read more here.

Keywords: astrophysics; mass; galaxy; galaxy catalogues ... See more keywords
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Advances in direct measurements of cosmic rays

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Published in 2021 at "Journal of the Korean Physical Society"

DOI: 10.1007/s40042-021-00081-7

Abstract: In celebration of the 25th anniversary of the Korean Physical Society Astrophysics Division, reflecting on the progress in cosmic-ray astrophysics seems worthwhile. Significant advances have been made in cosmic-ray measurements in recent years, particularly with… read more here.

Keywords: astrophysics; advances direct; cosmic rays; measurements cosmic ... See more keywords
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Design and analysis of a cable-winding device driving large deployable mechanisms in astrophysics missions

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Published in 2020 at "Acta Astronautica"

DOI: 10.1016/j.actaastro.2020.01.004

Abstract: Abstract Cables are widely used because of their light weight and wide range of arrangement. To guarantee successful deployment and retraction of cable-driven mechanisms, this paper proposes a novel cable-winding device to fulfil particular requirements… read more here.

Keywords: cable; astrophysics; cable winding; winding device ... See more keywords
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Revised and extended calculations with relativistic and QED corrections of selected He-like 3d-elemental ions having astrophysical significance

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Published in 2020 at "Radiation Physics and Chemistry"

DOI: 10.1016/j.radphyschem.2020.108866

Abstract: We have systematically enlarged Multiconfiguration Dirac-Fock wavefunctions for the relativistic configuration interaction calculation to include the Breit interaction and quantum electrodynamic corrections for evaluating fine structure data of He-like ions having non-zero nuclear spin for… read more here.

Keywords: calculations relativistic; qed corrections; extended calculations; astrophysics ... See more keywords