Søk
Viser treff 301-400 av 1111
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
Future Cosmic Microwave Background (CMB) satellite missions aim at using the B-mode polarisation signal to measure the tensor-to-scalar ratio r with a sensitivity σ(r) of the order of ≤ 10-2. Small uncertainties in the ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
The evolution of the virial overdensity Δvir for ΛCDM and seven dynamical dark-energy models is investigated in the extended spherical collapse model (SCM). Here the virialization process is naturally achieved by introducing ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
We provide predictions of the yield of 7 < z < 9 quasars from the Euclid wide survey, updating the calculation presented in the Euclid Red Book in several ways. We account for revisions to the Euclid near-infrared ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
The solar mean magnetic field (SMMF) is referred to as the disk-averaged line-of-sight (LOS) magnetic field that also reflects the polarity imbalance of the magnetic field on the Sun. The origin of the SMMF has been debated ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Direct collapse black holes forming in pristine, atomically cooling haloes at z ≈ 10–20 may act as the seeds of supermassive black holes (BHs) at high redshifts. In order to create a massive BH seed, the host halo needs ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
We report on the discovery of periodic coronal rain in an off-limb sequence of Solar Dynamics Observatory/Atmospheric Imaging Assembly images. The showers are co-spatial and in phase with periodic (6.6 hr) intensity ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
A dense forest of slender bright fibrils near a small solar active region is seen in high-quality narrowband Ca ii H images from the SuFI instrument onboard the Sunrise balloon-borne solar observatory. The orientation of ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Context. Penumbral microjets (PMJs) are short-lived jets found in the penumbra of sunspots, first observed in wide-band Ca ii H line observations as localized brightenings, and are thought to be caused by magnetic reconnection. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
© 2017. The American Astronomical Society. All rights reserved.
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The solar chromosphere observed in Hα consists mostly of narrow fibrils. The longest typically originate in network or plage and arch far over adjacent internetwork. We use data from multiple telescopes to analyze one ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
© 2017. The American Astronomical Society. All rights reserved.
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
This is a post-peer-review, pre-copyedit version of an article published in Solar Physics. The final authenticated version is available online at: http://dx.doi.org/10.1007/s11207-017-1123-2
(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, 2018)
Long-period EUV pulsations, recently discovered to be common in active regions, are understood to be the coronal manifestation of thermal nonequilibrium (TNE). The active regions previously studied with EIT/Solar and ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Context. Small-scale heating events (SSHEs) are believed to play a fundamental role in understanding the process responsible for heating of the solar corona, the pervading redshifts in the transition region, and the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The observations of solar flare onsets show rapid increase of hard and soft X-rays, ultra-violet emission with large Doppler blue shifts associated with plasma upflows, and Hα hydrogen emission with red shifts up to 1–4 Å. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Context. Sunspot atmospheres have been shown to be highly inhomogeneous hosting both quasi-stable and transient features, such as small-scale umbral brightenings (previously named “umbral micro-jets”) and dark fibril-like ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We use seeing-free high spatial resolution Ca ii H data obtained by the Sunrise observatory to determine properties of slender fibrils in the lower solar chromosphere. In this work we use intensity images taken with the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Aims. Current observational instruments are now providing data with the necessary temporal and spatial cadences required to examine highly dynamic, fine-scale magnetic structures in the solar atmosphere. Using the spectroscopic ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We present observations of transverse oscillations in slender Ca ii H fibrils (SCFs) in the lower solar chromosphere. We use a 1 hr long time series of high- (spatial and temporal-) resolution seeing-free observations in ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We characterize waves in small magnetic elements and investigate their propagation in the lower solar atmosphere from observations at high spatial and temporal resolution. We use the wavelet transform to analyze oscillations ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
In recent years, new high spatial resolution observations of the Sun's atmosphere have revealed the presence of a plethora of small-scale magnetic elements down to the resolution limit of the current cohort of solar ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We use spectropolarimetric observations of the Ca ii 8542 Å line, taken from the Swedish 1 m Solar Telescope, in an attempt to recover dynamic activity in a micro-flaring region near a sunspot via inversions. These inversions ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
© 2017. The American Astronomical Society. All rights reserved.
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Multiple modifications of general relativity (GR) have been proposed in the literature in order to understand the nature of the accelerated expansion of the Universe. However, thus far all the predictions of GR have been ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
We present near-infrared observations of 42 gravitationally lensed galaxies obtained in the framework of the KMOS Lensed Emission Lines and VElocity Review (KLEVER) Survey, a programme aimed at investigating the spatially ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
The first known interstellar object 'Oumuamua exhibited a nongravitational acceleration that appeared inconsistent with cometary outgassing, leaving radiation pressure as the most likely force. Barring the alien lightsail ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
We present the version 2 of AlterBBN, an open public code for the calculation of the abundance of the elements from Big-Bang nucleosynthesis. It does not rely on any closed external library or program, aims at being ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
Using high-cadence observations from the Hydrogen-alpha Rapid Dynamics camera imaging system on the Dunn Solar Telescope, we present an investigation of the statistical properties of transverse oscillations in spicules ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The SunPy Project developed a 13-question survey to understand the software and hardware usage of the solar-physics community. Of the solar-physics community, 364 members across 35 countries responded to our survey. We ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
The dominant feedback mechanism in low-mass haloes is usually assumed to take the form of massive stars exploding as supernovae (SNe). We perform very high resolution cosmological zoom-in simulations of five dwarf galaxies ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Aims. We investigate the transfer of energy between a fundamental standing kink mode and azimuthal Alfvén waves within an expanding coronal magnetic flux tube. We consider the process of resonant absorption in a loop with ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Context. Magnetohydrodynamic (MHD) waves are ubiquitous in the solar corona where the highly structured magnetic fields provide efficient wave guides for their propagation. While MHD waves have been observed originating ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
The second Hi-C flight (Hi-C 2.1) provided unprecedentedly high spatial and temporal resolution (~250 km, 4.4 s) coronal EUV images of Fe ix/x emission at 172 Å of AR 12712 on 2018 May 29, during 18:56:21–19:01:56 UT. Three ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
We present high-resolution, high-cadence observations of six, fine-scale, on-disk jet-like events observed by the High-resolution Coronal Imager 2.1 (Hi-C 2.1) during its sounding-rocket flight. We combine the Hi-C 2.1 ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Context. The Kepler Object of Interest Network (KOINet) is a multi-site network of telescopes around the globe organised for follow-up observations of transiting planet candidate Kepler objects of interest with large transit ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Context. Magnetic flux emergence from the solar interior has been shown to be a key mechanism for unleashing a wide variety of phenomena. However, there are still open questions concerning the rise of the magnetized plasma ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The emergence of magnetic flux through the photosphere and into the outer solar atmosphere produces, amongst other dynamical phenomena, Ellerman bombs (EBs), which are observed in the wings of Hα and are due to magnetic ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Context. Thermal non-equilibrium (TNE) is a phenomenon that can occur in solar coronal loops when the heating is quasi-constant and highly-stratified. Under such heating conditions, coronal loops undergo cycles of evaporation ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Even in quiet areas underneath coronal holes the solar chromosphere contains ubiquitous heating events. They tend to be small scale and short lived, hence difficult to identify. Here we do not address their much-debated ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Observational evidence revealing the main mechanisms that accelerate quasar outflows has proven difficult to obtain due to the complexity of the absorption features that this gas produces in the spectra of the emission ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Upon its discovery, the low-density transiting Neptune HAT-P-26b showed a 2.1σ detection drift in its spectroscopic data, while photometric data showed a weak curvature in the timing residuals, the confirmation of which ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
The Multi-slit Solar Explorer (MUSE) is a proposed mission aimed at understanding the physical mechanisms driving the heating of the solar corona and the eruptions that are at the foundation of space weather. MUSE contains ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Aims. We investigate the propagation of transverse magnetohydrodynamic (MHD) wave fronts through a coronal plasma containing a braided magnetic field.
Methods. We performed a series of three dimensional MHD simulations ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. Torsional Alfvén waves are promising candidates for the transport of energy across different layers of the solar atmosphere. They have been predicted theoretically for decades. Previous detections of Alfvén waves ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
We analyze the metal accumulation in dwarf and spiral galaxies by following the history of metal enrichment and outflows in a suite of 20 high-resolution simulated galaxies. These simulations agree with the observed stellar ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
We studied the physical parameters of the penumbra in a large and fully developed sunspot, one of the largest over the last two solar cycles, by using full-Stokes measurements taken at the photospheric Fe i 617.3 nm and ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
The spectrum of the zem = 2.63 quasar Q1009+2956 has been observed extensively on the Keck telescope. The Lyman limit absorption system zabs = 2.504 was previously used to measure D/H by Burles & Tytler using a spectrum ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
The Interface Region Imaging Spectrograph has routinely observed the flaring Mg ii near-ultraviolet (NUV) spectrum, offering excellent diagnostic potential and a window into the location of energy deposition. A number of ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
The z abs = 2.504 Lyman Limit absorption system (LLS) towards Q1009+2956 has previously been used to estimate the primordial deuterium abundance. Since the initial measurement by Burles & Tytler [1], this quasar has been ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
The signal measured by an astronomical spectrometer may be due to radiation from a multi-component mixture of plasmas with a range of physical properties (e.g., temperature, Doppler velocity). Confusion between multiple ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Context: We introduce a model for including accelerated particles in pure magnetohydrodynamics (MHD) simulations of the solar atmosphere.
Aims: We show that the method is viable and produces results that enhance the realism ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
We study the abundance of star-forming and quiescent galaxies in a sample of 21 clusters at 0.5 < z < 0.7, detected with the Planck satellite. Thanks to the large volume probed by Planck, these systems are extremely ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
The bias factor of damped Ly α (DLAs) systems, derived from the cross-correlation with the Ly α forest in absorption spectra of the Baryon Oscillation Spectroscopic Survey of SDSS-III, has been used to infer the characteristic ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
It has been proposed that close interactions with satellite galaxies can significantly perturb the morphology of the main galaxy. However, the dynamics of an already formed bar following the interaction with the external ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
We stack the rest-frame ultraviolet spectra of N = 14 highly magnified gravitationally lensed galaxies at redshifts $1.6\lt z\lt 3.6$. The resulting new composite spans $900\lt {\lambda }_{\mathrm{rest}}\lt 3000$ Å, with ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Lyα is a powerful astrophysical probe. Not only is it ubiquitous at high redshifts, it is also a resonant line, making Lyα photons scatter. This scattering process depends on the physical conditions of the gas through which ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
We investigate the effects of a disformal coupling between dark energy and dark matter in the predictions of the spherical collapse and its signatures in galaxy cluster number counts. We find that the disformal coupling ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
The baryonic content and physical properties of the warm and hot (105 lesssim T lesssim 107 K) phases of the circumgalactic medium (CGM) are poorly constrained owing to the lack of observables probing the requisite range ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
This is an overview of non-equilibrium aspects of the formation of solar continua and lines affecting the contributions by magnetic network and plage to spectrally resolved solar irradiance. After a brief summary of these ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. Long-period intensity pulsations were recently detected in the EUV emission of coronal loops and attributed to cycles of plasma evaporation and condensation driven by thermal non-equilibrium (TNE). Numerical ...
Euclid: The reduced shear approximation and magnification bias for Stage IV cosmic shear experiments
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. Stage IV weak lensing experiments will offer more than an order of magnitude leap in precision. We must therefore ensure that our analyses remain accurate in this new era. Accordingly, previously ignored systematic ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The Euclid mission will observe well over a billion galaxies out to z ∼ 6 and beyond. This will offer an unrivalled opportunity to investigate several key questions for understanding galaxy formation and evolution. The ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We present the highest-resolution—15 pc (0farcs03)—ALMA 12CO(2–1) line emission and 1.3 mm continuum maps, tracers of the molecular gas and dust, respectively, in the nearby merging galaxy system NGC 6240, which hosts two ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
Past X-ray observations of the nearby Seyfert 2 MCG-03-58-007 revealed the presence of a powerful and highly variable disk wind, where two possible phases outflowing with vout1/c ∼ −0.07 and vout2/c ∼ −0.2 were observed. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. The Atacama Large Millimeter/submillimeter Array (ALMA) started regular observations of the Sun in 2016, first offering receiver Band 3 at wavelengths near 3 mm (100 GHz) and Band 6 at wavelengths around 1.25 mm ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Accurate predictions for the nonlinear matter power spectrum are needed to confront theory with observations in current and near future weak-lensing and galaxy clustering surveys. We propose a computationally cheap method ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The emergence of magnetic flux through the photosphere and into the outer solar atmosphere produces, amongst other dynamical phenomena, Ellerman bombs (EBs), which are observed in the wings of Hα and are due to magnetic ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Aims. Our aim is to quantify the impact of systematic effects on the inference of cosmological parameters from cosmic shear.
Methods. We present an “end-to-end” approach that introduces sources of bias in a modelled weak ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We determine the relationship between the turnaround radius, Rt, and mass, Mt, in Λ CDM , and in dark energy scenarios, using an extended spherical collapse model taking into account the effects of shear and vorticity. We ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
We present results from GigaEris, a cosmological, N-body hydrodynamical "zoom-in" simulation of the formation of a Milky Way-sized galaxy halo with unprecedented resolution, encompassing of order a billion particles within ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. Numerical simulations of the solar chromosphere predict a diverse thermal structure with both hot and cool regions. Observations of plage regions in particular typically feature broader and brighter chromospheric ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
The Chromospheric Lyman-Alpha Spectro-Polarimeter (CLASP) is a suborbital rocket experiment that on 2015 September 3 measured the linear polarization produced by scattering processes in the hydrogen Lyα line of the solar ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
On 2015 September 3, the Chromospheric Lyman-Alpha SpectroPolarimeter (CLASP) successfully measured the linear polarization produced by scattering processes in the hydrogen Lyα line of the solar disk radiation, revealing ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
It is always interesting to investigate how well can a future experiment perform with respect to others (present or future ones). Cosmology is really an exciting field where a lot of puzzles are still unknown. In this ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. The pursuit of more realistic spectroscopic modelling and consistent abundances has led us to begin a new series of papers designed to improve current solar and stellar abundances of various atomic species. To ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We consider the possibility that dark energy and baryons might scatter off each other. The type of interaction we consider leads to a pure momentum exchange, and does not affect the background evolution of the expansion ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
We investigate a well known scenario of interaction in the dark sector where the vacuum energy is interacting with cold dark matter throughout the cosmic evolution in light of the cosmic microwave background (CMB) data ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. Isotopologue line intensity ratios of circumstellar molecules have been widely used to trace the photospheric elemental isotopic ratios of evolved stars. However, depending on the molecular species and the physical ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Context. Hot coronal jets are a basic observed feature of the solar atmosphere whose physical origin is still actively debated.
Aims. We study six recurrent jets that occurred in active region NOAA 12644 on April 4, 2017. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
The Interface Region Imaging Spectrograph (IRIS) is a NASA small explorer mission that provides high-resolution spectra and images of the Sun in the 133 – 141 nm and 278 – 283 nm wavelength bands. The IRIS data are archived ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
Foreground components in the Cosmic Microwave Background (CMB) are sparse in a needlet representation, due to their specific morphological features (anisotropy, non-Gaussianity). This leads to the possibility of applying ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We report new detections and limits from a NOEMA and ALMA CO(1-0) search for molecular outflows in 13 local galaxies with high far-infrared surface brightness, and combine these with local universe CO outflow results from ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We present a novel method of magnetohydrodynamics (MHD) within the smoothed particle hydrodynamics scheme (SPMHD) using the geometric density average force expression. Geometric density average within smoothed particle ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We report new galaxy clusters previously unknown included in the first Planck Sunyaev–Zeldovich (SZ) sources catalogue, the PSZ1. The results presented here were achieved during the second year of a two-year observational ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
The origin of the disk and spheroid of galaxies has been a key open question in understanding their morphology. Using the high-resolution cosmological simulation New Horizon, we explore kinematically decomposed disk and ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We present a new code,SCALAR, based on the high-resolution hydrodynamics andN-body codeRAMSES, to solve the Schrödingerequation on adaptive refined meshes. The code is intended to be used to simulate axion ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Weak lensing, which is the deflection of light by matter along the line of sight, has proven to be an efficient method for constraining models of structure formation and reveal the nature of dark energy. So far, most ...
Dark Energy Survey Year 1 Results: Cosmological constraints from cluster abundances and weak lensing
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We present the discovery of PSO J030947.49+271757.31, the radio brightest (23.7 mJy at 1.4 GHz) active galactic nucleus (AGN) at z > 6.0. It was selected by cross-matching the NRAO VLA Sky Survey and the Panoramic ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We present a new analytical equation of state (EOS), which correctly models high pressure theory and fits well to the experimental data of ɛ-Fe, SiO2, Mg2, and the Earth. The cold part of the EOS is modeled after the Varpoly ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We present ALMA Band 7 data of the[CII]lm157.74memission line and underlying far-IR(FIR)continuum for12 luminous quasars atz4.8powered by fast-growing supermassive black holes(SMBHs). Our totalsample consists of 18 ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
We present an overview of high-resolution quiet Sun observations, from disk center to the limb, obtained with the Atacama Large millimeter and sub-millimeter Array (ALMA) at 3 mm. Seven quiet-Sun regions were observed at ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We present interferometric observations of the CN(1–0) line emission in Mrk 231 and combine them with previous observations of CO and other H2 gas tracers to study the physical properties of the massive molecular outflow. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
ABSTRACT
We perform a comprehensive analysis of the redshift evolution of the rest-UV spectra of star-forming galaxies out to z ∼ 5. We combine new z ∼ 5 measurements of H i Ly α and low- and high-ionization ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We derive constraints on the thermal and ionization states of the intergalactic medium (IGM) at redshift ≈ 9.1 using new upper limits on the 21-cm power spectrum measured by the LOFAR radio telescope and a prior on the ...