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Now showing items 401-500 of 1111
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We present strong gravitational lensing models for 37 galaxy clusters from the Sloan Digital Sky Survey Giant Arcs Survey. We combine data from multi-band Hubble Space Telescope Wide Field Camera 3 (WFC3) imaging, with ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. Future weak lensing surveys, such as the Euclid mission, will attempt to measure the shapes of billions of galaxies in order to derive cosmological information. These surveys will attain very low levels of statistical ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Recent developments of transition-edge sensors (TESs), based on extensive experience in ground-based experiments, have been making the sensor techniques mature enough for their application on future satellite cosmic microwave ...
Self-consistent 3D radiative magnetohydrodynamic simulations of coronal rain formation and evolution
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. Coronal rain consists of cool and dense plasma condensations formed in coronal loops as a result of thermal instability.
Aims. Previous numerical simulations of thermal instability and coronal rain formation have ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We examine the capabilities of a fast and simple method to infer line-of-sight (LOS) velocities from observations of the photospheric Si I 10 827 Å line. This spectral line is routinely observed together with the chromospheric ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Recent integral field spectroscopy observations have found that about 11% of galaxies show star–gas misalignment. The misalignment possibly results from external effects such as gas accretion, interaction with other objects, ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. Ambipolar diffusion is a physical mechanism related to the drift between charged and neutral particles in a partially ionized plasma that is key to many different astrophysical systems. However, understanding its ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
Constraints on gravity and cosmology will greatly benefit from performing joint clustering and weak lensing analyses on large-scale structure data sets. Utilising non-linear information coming from small physical scales ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
We study the impact of active galactic nuclei (AGN) ionised outflows on star formation in high-redshift AGN host galaxies, by combining near-infrared integral field spectroscopic (IFS) observations, mapping the H α emission ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
This study investigates the Reynolds-number dependence of shock-induced flow through stationary particle clouds at 10% volume fraction, using ensemble-averaged results from three-dimensional particle-resolved large eddy ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
ABSTRACT
We present a simulated cosmology analysis using the second and third moments of the weak lensing mass (convergence) maps. The second moment, or variances, of the convergence as a function of smoothing ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Ellerman Bomb-like brightenings of the hydrogen Balmer line wings in the quiet Sun, also known as quiet Sun Ellerman bombs (QSEBs), are a signature of the fundamental process of magnetic reconnection at the smallest ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Aims. We intend to understand cosmological structure formation within the framework of superfluid models of dark matter with finite temperatures. Of particular interest is the evolution of small-scale structures where the ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
Lyman-α blobs (LABs) are spatially extended nebulae of emission in the Lyman-α (Lyα) line of hydrogen, seen at high redshifts and most commonly found in the dense environment of star-forming galaxies. A recent study showed ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We used the time since infall (TSI) of galaxies, obtained from the Yonsei Zoom-in Cluster Simulation, and the star formation rate (SFR) from the Sloan Digital Sky Survey Data Release 10 to study how quickly the star formation ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. Magnetic bright points (MBPs) are dynamic, small-scale magnetic elements often found with field strengths of the order of a kilogauss within intergranular lanes in the photosphere.
Aims. Here we study the evolution ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
The IAU promotes astronomy as a tool to strengthen science education of young people in developing regions through its International Schools for Young Astronomers (ISYA) and a Teaching for Astronomy Development (TAD) ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Motivated by the discrepancy in measurements of H0 between local and global probes, we investigate whether teleparallel gravities could be a better model to describe the present-day observations or at least to alleviate ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The Complete Calibration of the Colour–Redshift Relation survey (C3R2) is a spectroscopic effort involving ESO and Keck facilities designed specifically to empirically calibrate the galaxy colour–redshift relation – P ( z ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
Searching for violations of the no-hair theorem (NHT) is a powerful way to test gravity, and more generally fundamental physics, particularly with regards to the existence of additional scalar fields. The first observation ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Aims. Solar Orbiter, the first mission of ESA’s Cosmic Vision 2015–2025 programme and a mission of international collaboration between ESA and NASA, will explore the Sun and heliosphere from close up and out of the ecliptic ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
We present a measurement of the cosmic microwave background lensing potential using 500 deg2 of 150 GHz data from the SPTpol receiver on the South Pole Telescope. The lensing potential is reconstructed with signal-to-noise ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We present the NPIPE processing pipeline, which produces calibrated frequency maps in temperature and polarization from data from the Planck Low Frequency Instrument (LFI) and High Frequency Instrument (HFI) using ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
line (121.6 nm). The instrument was successfully launched on 3 September 2015 and observations were conducted at the solar disc center and close to the limb during the five-minutes flight. In this article, the disc center ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We investigate the performance of a simple Bayesian fitting approach to correct the cosmic microwave background (CMB) B-mode polarization for gravitational lensing effects in the recovered probability distribution of the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
In this work, we study the dynamics of the Local Group (LG) within the context of cosmological models beyond General Relativity (GR). Using observable kinematic quantities to identify candidate pairs, we build up samples ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We describe a simple but efficient method for deriving a consistent set of monopole and dipole corrections for multi-frequency sky map data sets, allowing robust parametric component separation with the same data set. The ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We present rest-frame ultraviolet and optical spectroscopy of the brightest lensed galaxy yet discovered, at redshift z = 2.4. The source reveals a characteristic triple-peaked Lyman α profile that has been predicted in ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Our ability to model the shapes and strengths of iron lines in the solar spectrum is a critical test of the accuracy of the solar iron abundance, which sets the absolute zero-point of all stellar metallicities. We use an ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Magnetic reconnection is thought to drive a wide variety of dynamic phenomena in the solar atmosphere. Yet, the detailed physical mechanisms driving reconnection are difficult to discern in the remote sensing observations ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Future solar missions and ground-based telescopes aim to understand the magnetism of the solar chromosphere. We performed a supporting study in Quintero Noda et al. focused on the infrared Ca ii 8542 Å line and we concluded ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
© 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Using the Eris zoom-in cosmological simulation of assembly of a Milky Way analogue, we study the chemical enrichment of stars due to accretion of metal-enriched gas from the interstellar medium (ISM) during the Galaxy's ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We investigate the contribution of outer H i disks to the observable population of merging black hole binaries. Like dwarf galaxies, the outer H i disks of spirals have low star formation rates and lower metallicities than ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Solar “magnetic tornadoes” are produced by rotating magnetic field structures that extend from the upper convection zone and the photosphere to the corona of the Sun. Recent studies show that these kinds of rotating features ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
© 2017. The American Astronomical Society. All rights reserved.
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
© 2017. The American Astronomical Society. All rights reserved.
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We compare 237 Lyman-α (Lyα) spectra of the MUSE-Wide survey to a suite of radiative transfer simulations consisting of a central luminous source within a concentric, moving shell of neutral gas, and dust. This six parameter ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Aims. Although observational data unequivocally point to the presence of chromospheres in red giant stars, no attempts have been made so far to model them using 3D hydrodynamical model atmospheres. We therefore compute an ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
© 2017 American Institute of Physics.
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We study the properties of dark matter haloes in a wide range of modified gravity models, namely, f(R), DGP and interacting dark energy models. We study the effects of modified gravity and dark energy on the internal ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
The dynamics of globular clusters has been studied in great detail in the context of general relativity as well as with modifications of gravity that strongly depart from the standard paradigm such as Modified Newtonian ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
Past Suzaku, XMM–Newton, and NuSTAR observations of the nearby (z = 0.03233) bright Seyfert 2 galaxy MCG-03-58-007 revealed the presence of two deep and blue-shifted iron K-shell absorption line profiles. These could be ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. The ESA Euclid space telescope could observe up to 150 000 asteroids as a side product of its primary cosmological mission. Asteroids appear as trailed sources, that is streaks, in the images. Owing to the survey ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The European Space Agency’s Planck satellite, which was dedicated to studying the early Universe and its subsequent evolution, was launched on 14 May 2009. It scanned the microwave and submillimetre sky continuously between ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We describe an extension of the most recent version of the Planck Catalogue of Compact Sources (PCCS2), produced using a new multi-band Bayesian Extraction and Estimation Package ( BeeP ). BeeP assumes that the compact ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Abstract
Ineke De Moortel, Isobel Falconer and Robert Stack explore the achievements and influence of Hannes Alfvén, in particular his seminal Monthly Notices paper of 1947 on the heating of the solar corona.
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
We present spatially resolved Echelle spectroscopy of an intervening Mg II–Fe II–Mg I absorption-line system detected at zabs = 0.73379 towards the giant gravitational arc PSZ1 G311.65–18.48. The absorbing gas is associated ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We review and compare two different cosmic microwave background (CMB) dipole estimators discussed in the literature and assess their performances through Monte Carlo simulations. The first method amounts to simple template ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We derive the equations of motion of dyonic black hole binaries with electric and magnetic charges and explore features of static orbits. By using a Newtonian method with the inclusion of radiation reaction, we calculate ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The study of polarized dust emission has become entwined with the analysis of the cosmic microwave background (CMB) polarization in the quest for the curl-like B -mode polarization from primordial gravitational waves and ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. The chromosphere of the umbra of sunspots features an assortment of dynamic fine structures that are poorly understood and often studied separately. Small-scale umbral brightenings (SSUBs), umbral microjets, spikes ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. Observational and theoretical evidence suggest that beams of accelerated particles are produced in flaring events of all sizes in the solar atmosphere, from X-class flares to nanoflares. Current models of these ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
We present results derived from the analysis of spectropolarimetric measurements of active region AR12546, which represents one of the largest sunspots to have emerged onto the solar surface over the last 20 years. The ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
The coldest and densest structures of gas and dust in the Universe have unique spectral signatures across the (sub-)millimetre bands (υ ≈30 - 950 GHz). The current generation of single dish facilities has given a glimpse ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We report on the implications for cosmic inflation of the 2018 release of the Planck cosmic microwave background (CMB) anisotropy measurements. The results are fully consistent with those reported using the data from the ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
This paper presents the High Frequency Instrument (HFI) data processing procedures for the Planck 2018 release. Major improvements in mapmaking have been achieved since the previous Planck 2015 release, many of which were ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. In metric theories of gravity with photon number conservation, the luminosity and angular diameter distances are related via the Etherington relation, also known as the distance duality relation (DDR). A violation ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We present full-sky maps of the cosmic microwave background (CMB) and polarized synchrotron and thermal dust emission, derived from the third set of Planck frequency maps. These products have significantly lower contamination ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We describe the legacy Planck cosmic microwave background (CMB) likelihoods derived from the 2018 data release. The overall approach is similar in spirit to the one retained for the 2013 and 2015 data release, with a hybrid ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2021)
The magnetic and convective nature of the Sun's photosphere provides a unique platform from which generated waves can be modelled, observed, and interpreted across a wide breadth of spatial and temporal scales. As oscillations ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. The data from the Euclid mission will enable the measurement of the angular positions and weak lensing shapes of over a billion galaxies, with their photometric redshifts obtained together with ground-based ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Aims. The SINFONI survey for Unveiling the Physics and Effect of Radiative feedback (SUPER) aims to trace and characterise ionised gas outflows and their impact on star formation in a statistical sample of X-ray selected ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Observations of the submillimetre emission from Galactic dust, in both total intensity I and polarization, have received tremendous interest thanks to the Planck full-sky maps. In this paper we make use of such full-sky ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Aims. We aim to investigate the temperature enhancements and formation heights of solar active-region brightenings such as Ellerman bombs (EBs), ultraviolet bursts (UVBs), and flaring active-region fibrils (FAFs) using ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We present measurements of the cosmic microwave background (CMB) lensing potential using the final Planck 2018 temperature and polarization data. Using polarization maps filtered to account for the noise anisotropy, we ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Modelling the solar Transition Region with the use of an Adaptive Conduction (TRAC) method permits fast and accurate numerical solutions of the field-aligned hydrodynamic equations, capturing the enthalpy exchange between ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
Sunspots have played a key role in aiding our understanding of magnetohydrodynamic (MHD) wave phenomena in the Sun’s atmosphere, and it is well known they demonstrate a number of wave phenomena associated with slow MHD ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We analyse the Planck full-mission cosmic microwave background (CMB) temperature and E -mode polarization maps to obtain constraints on primordial non-Gaussianity (NG). We compare estimates obtained from separable ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. Coronal mass ejections (CMEs) are often observed to be accompanied by flare, current sheets, and plasmoids/plasma blobs. 2D and 3D numerical simulations and observations reported plasmoids moving upward as well ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
The Cosmology Large Angular Scale Surveyor (CLASS) is an array of polarization-sensitive millimeter wave telescopes that observes ∼ 70% of the sky at frequency bands centered near 40 GHz, 90 GHz, 150 GHz, and 220 GHz from ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. Phase mixing of Alfvén waves has been studied extensively as a possible coronal heating mechanism but without the full thermodynamic consequences considered self-consistently. It has been argued that in some cases, ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Aims. The SINFONI survey for Unveiling the Physics and Effect of Radiative feedback (SUPER) was designed to conduct a blind search for AGN-driven outflows on X-ray-selected AGNs at redshift z ∼ 2 with high (∼2 kpc) spatial ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
The suitability of solar pores as magnetic wave guides has been a key topic of discussion in recent years. Here, we present observational evidence of propagating magnetohydrodynamic wave activity in a group of five ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
We report detection of oscillations in brightness temperature, size and horizontal velocity of three small bright features in the chromosphere of a plage/enhanced-network region. The observations, which were taken with ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
WALOP (Wide-Area Linear Optical Polarimeter)-South, to be mounted on the 1m SAAO telescope in South Africa, is first of the two WALOP instruments currently under development for carrying out the PASIPHAE survey. Scheduled ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. Solar observations with the Atacama Large Millimeter/sub-millimeter Array (ALMA) facilitate studies of the atmosphere of the Sun at chromospheric heights at high spatial and temporal resolution at millimeter ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Analysis of the Planck 2018 data set indicates that the statistical properties of the cosmic microwave background (CMB) temperature anisotropies are in excellent agreement with previous studies using the 2013 and 2015 data ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Observed FeO/MgO ratios in the Moon and Earth are inconsistent with simulations done with a single homogeneous silicate layer. In this paper we use a newly developed equation of state to perform smoothed particle hydrodynamics ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
Observations at millimetre wavelengths provide a valuable tool to study the small-scale dynamics in the solar chromosphere. We evaluate the physical conditions of the atmosphere in the presence of a propagating shock wave ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
ABSTRACT
The study of the localized plasma conditions before the impulsive phase of a solar flare can help us understand the physical processes that occur leading up to the main flare energy release. Here, we ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Aims. The Spectral Imaging of the Coronal Environment (SPICE) instrument is a high-resolution imaging spectrometer operating at extreme ultraviolet wavelengths. In this paper, we present the concept, design, and pre-launch ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. To meet the scientific objectives of the mission, the Solar Orbiter spacecraft carries a suite of in-situ (IS) and remote sensing (RS) instruments designed for joint operations with inter-instrument communication ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We present a final description of the data-processing pipeline for the Planck Low Frequency Instrument (LFI), implemented for the 2018 data release. Several improvements have been made with respect to the previous release, ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
ABSTRACT
Analyses of Type Ia supernovae (SNe Ia) have found puzzling correlations between their standardized luminosities and host galaxy properties: SNe Ia in high-mass, passive hosts appear brighter than those ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The goal of the SunPy project is to facilitate and promote the use and development of community-led, free, and open source data analysis software for solar physics based on the scientific Python environment. The project ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The largest temperature anisotropy in the cosmic microwave background (CMB) is the dipole, which has been measured with increasing accuracy for more than three decades, particularly with the Planck satellite. The simplest ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
By direct measurements of the gas temperature, the Atacama Large Millimeter/submillimeter Array (ALMA) has yielded a new diagnostic tool to study the solar chromosphere. Here, we present an overview of the brightness-temperature ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. The relative importance of alternating current (AC) and direct current (DC) heating mechanisms in maintaining the temperature of the solar corona is not well constrained.
Aims. We aim to investigate the effects ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
There has been tremendous progress in the degree of realism of three-dimensional radiation magneto-hydrodynamic simulations of the solar atmosphere in the past decades. Four of the most frequently used numerical codes are ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Aims. We investigate synthetic observational signatures generated from numerical models of transverse waves propagating in complex (braided) magnetic fields.
Methods. We consider two simulations with different levels ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
The instrumental advances made in this new era of 4 m class solar telescopes with unmatched spectropolarimetric accuracy and sensitivity will enable the study of chromospheric magnetic fields and their dynamics with ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Aims. We investigate the formation of small scales and the related dissipation of magnetohydronamic (MHD) wave energy through non-linear interactions of counter-propagating, phase-mixed Alfvénic waves in a complex magnetic ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. The mechanism(s) behind coronal heating still elude(s) direct observation and modelling of viable theoretical processes and the subsequent effect on coronal structures is one of the key tools available to assess ...