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   Articles with "spectral energy" as a keyword



A Short Review on the Multi‐Wavelength Spectral Energy Distribution of Low‐Luminosity Active Galactic Nuclei

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recommendations! Published in 2025 at "Astronomische Nachrichten"

DOI: 10.1002/asna.70035

Abstract: Black hole accretion and jet formation are very fundamental and important physical processes in astrophysics. Despite the great progress made in the last decades, our knowledge of the physics of BHs remains highly incomplete. The… read more here.

Keywords: spectral energy; wavelength spectral; multi; short review ... See more keywords

On the detectability and parameterization of binary stars through spectral energy distributions

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recommendations! Published in 2024 at "Journal of Astrophysics and Astronomy"

DOI: 10.1007/s12036-025-10042-2

Abstract: This study examines the characterization of binary star systems using Spectral Energy Distributions (SEDs), a technique increasingly essential with the rise of large-scale astronomical surveys. Binaries can emit flux at different regions of the electromagnetic… read more here.

Keywords: energy distributions; parameterization binary; spectral energy; binary stars ... See more keywords

Low-Frequency Spectral Energy Distributions of Radio Pulsars Detected with the Murchison Widefield Array

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recommendations! Published in 2017 at "Publications of the Astronomical Society of Australia"

DOI: 10.1017/pasa.2017.13

Abstract: Abstract We present low-frequency spectral energy distributions of 60 known radio pulsars observed with the Murchison Widefield Array telescope. We searched the GaLactic and Extragalactic All-sky Murchison Widefield Array survey images for 200-MHz continuum radio… read more here.

Keywords: frequency spectral; low frequency; spectral energy; widefield array ... See more keywords

The Influence of Forming Companions on the Spectral Energy Distributions of Stars with Circumstellar Discs

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recommendations! Published in 2017 at "Publications of the Astronomical Society of Australia"

DOI: 10.1017/pasa.2017.9

Abstract: Abstract We study a possibility to detect signatures of brown dwarf companions in a circumstellar disc based on spectral energy distributions. We present the results of spectral energy distribution simulations for a system with a… read more here.

Keywords: energy distribution; energy; energy distributions; spectral energy ... See more keywords

Measurement of the EBL spectral energy distribution using the VHE $\gamma$-ray spectra of H.E.S.S. blazars

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recommendations! Published in 2017 at "Astronomy and Astrophysics"

DOI: 10.1051/0004-6361/201731200

Abstract: Very high-energy γ rays (VHE, E ≳ 100 GeV) propagating over cosmological distances can interact with the low-energy photons of the extragalactic background light (EBL) and produce electron-positron pairs. The transparency of the Universe to… read more here.

Keywords: energy distribution; spectra blazars; energy; measurement ebl ... See more keywords

Analyzing the spectral energy cascade in turbulent channel flow

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recommendations! Published in 2018 at "Physics of Fluids"

DOI: 10.1063/1.5022653

Abstract: An analysis of the spectral turbulent kinetic energy budget in a fully developed turbulent plane channel flow is performed. Direct numerical simulation data are evaluated at friction Reynolds numbers Reτ of 180 and 1000. The… read more here.

Keywords: energy cascade; spectral energy; channel flow; energy ... See more keywords
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Graphene phonons lifetime and mean free path using ab initio molecular dynamics and spectral energy density analysis

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recommendations! Published in 2021 at "Physica Scripta"

DOI: 10.1088/1402-4896/abede2

Abstract: In this study, simulation of ab initio molecular dynamics with phonon spectral analysis was performed with the aim of understanding the two-dimensional thermal conductivity in graphene. Using the atomic velocities obtained from the simulation of… read more here.

Keywords: molecular dynamics; analysis; graphene; spectral energy ... See more keywords
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The polarized spectral energy distribution of NGC 4151

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recommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staa1533

Abstract: NGC 4151 is among the most well-studied Seyfert galaxies that does not suffer from strong obscuration along the observer's line-of-sight. This allows to probe the central active galactic nucleus (AGN) engine with photometry, spectroscopy, reverberation… read more here.

Keywords: energy distribution; ngc 4151; distribution ngc; spectral energy ... See more keywords

Spectral energy distribution profiles from AGN accretion disc in multi-gap setup

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recommendations! Published in 2023 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stad1127

Abstract: Spectral Energy Distribution (SED) of the broad-band continuum emission from black-hole accretion discs can serve as a tool to measure parameters of the central body and constrain the geometry of the inner accretion flow. We… read more here.

Keywords: accretion; energy distribution; agn accretion; spectral energy ... See more keywords

The spectral energy distribution of extreme population A quasars

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recommendations! Published in 2025 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staf862

Abstract: Knowledge of the broad-band active galactic nuclei (AGN) spectral energy distribution (SED) that ionizes the gas-rich broad emission line region is key to understanding the various radiative processes at play and their importance that eventually… read more here.

Keywords: energy distribution; radio; spectral energy; emission ... See more keywords

A Spectral Energy Distribution Variability Study of the Eclipsing AGN NGC 6814

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recommendations! Published in 2025 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staf940

Abstract: The local Seyfert 1.5 active galactic nucleus (AGN), NGC 6814, is known to exhibit complex variability, eclipses, and even changing-look behaviour. In this work, we utilize optical-to-X-ray data obtained over 10-years with the Neil Gehrels… read more here.

Keywords: energy distribution; spectral energy; ngc 6814; variability ... See more keywords