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Now showing items 301-400 of 1306
(Doctoral thesis / Doktoravhandling, 2017)
(Master thesis / Masteroppgave, 2016)
If dark matter, after it has become non-relativistic, scatters elastically with a relativistic heat bath particle, then the resulting pressure leads to acoustic oscillations that suppress the growth of overdensities in the ...
(Doctoral thesis / Doktoravhandling, 2010)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Context. The solar coronal heating problem has been an open question in the science community since 1939. One of the proposed models for the transport and release of mechanical energy generated in the sub-photospheric ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
© ESO, 2017
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We report the identification of extended Lyα nebulae at z ≃ 3.3 in the Hubble Ultra Deep Field (HUDF, ≃40 kpc × 80 kpc) and behind the Hubble Frontier Field galaxy cluster MACSJ0416 (≃40 kpc), spatially associated with ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
© 2017 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society
(Master thesis / Masteroppgave, 2013)
We investigate cosmologies where the accelerated expansion of the universe is driven by a fluid with an anisotropic equation of state.
If dark energy equation of state is anisotropic, the expansion rate of the universe ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
We present results from an observing campaign in support of the VAULT2.0 sounding rocket launch on 2014 September 30. VAULT2.0 is a Lyα (1216 Å) spectroheliograph capable of providing spectroheliograms at high cadence. Lyα ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
© ESO, 2017
(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, 2018)
We have identified new clusters and characterized previously unknown Planck Sunyaev–Zeldovich (SZ) sources from the first Planck catalogue of SZ sources (PSZ1). The results presented here correspond to an optical follow-up ...
(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.
(Master thesis / Masteroppgave, 2013)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We present cosmological results from the final galaxy clustering data set of the Baryon Oscillation Spectroscopic Survey, part of the Sloan Digital Sky Survey III. Our combined galaxy sample comprises 1.2 million massive ...
(Master thesis / Masteroppgave, 2013)
The existence of dark energy in the universe is hypothesized to explain the accelerated expansion of today’s universe and the inflationary expansion of very early universe; accelerated expansion of today’s universe is ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Motivated by observational and theoretical work that suggest very small-scale (≲ 1 pc) structure in the circumgalactic medium of galaxies and in other environments, we study Lyman-α (Lyα) radiative transfer in an extremely ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
© 2017. The American Astronomical Society. All rights reserved.
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We assess the impact of trapped Lyman α cooling radiation on the formation of direct collapse black holes (DCBHs). We apply a one-zone chemical and thermal evolution model, accounting for the photodetachment of H− ions, ...
(Journal article / Tidsskriftartikkel / SubmittedVersion, 2017)
Recent constrains on the sum of neutrino masses inferred by analyzing cosmological data, show that detecting a non-zero neutrino mass is within reach of forthcoming cosmological surveys. Such a measurement will imply a ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
In spite of their conjectured importance for the Epoch of Reionization, the properties of low-mass galaxies are currently still very much under debate. In this article, we study the stellar and gaseous properties of faint, ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
We investigate our knowledge of early universe cosmology by exploring how much additional energy density can be placed in different components beyond those in the ΛCDM model. To do this we use a method to separate early- ...
(Doctoral thesis / Doktoravhandling, 2020)
The standard model of cosmology has been quite successful in describing how baryonic matter and dark matter cluster by means of gravity, forming the structures we can see today while looking at the sky, and it can reproduce ...
(Doctoral thesis / Doktoravhandling, 2013)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
We present a new flexible Bayesian framework for directly inferring the fraction of neutral hydrogen in the intergalactic medium (IGM) during the Epoch of Reionization (EoR, z ~ 6–10) from detections and non-detections of ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)
We investigate whether there is any cosmological evidence for a scalar field with a mass and coupling to matter which change accordingly to the properties of the astrophysical system it “lives in,” without directly focusing ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)
In order to satisfy limits on the allowed variation of particle masses from big bang nucleosynthesis until today, the chameleon scalar field is required to reach its attractor solution early on in its cosmological evolution. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
The Gaussian kinematic formula (GKF) [R. J. Adler and J. E. Taylor, Random Fields and Geometry (Springer, New York, 2007).] is an extremely powerful tool allowing for explicit analytic predictions of expected values of ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
A massive and luminous perturber moving across an opaque gas is subjected to a force different from the gravitational friction that it would experience if it were cold. The heat released by the perturber diffuses in the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
We study a granular-sized magnetic flux emergence event that occurred in NOAA 11024 in 2009 July. The observations were made with the CRISP spectropolarimeter at the Swedish 1 m Solar Telescope achieving a spatial resolution ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
We investigate the variation of the fine-structure constant, α, in symmetron models using N-body simulations in which the full spatial distribution of α at different redshifts has been calculated. In particular, we obtain ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
The space-time evolution of an initial step-like plasma density variation is studied. We give particular attention to formulate the problem in a way that opens for the possibility of realizing the conditions experimentally. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)
With reference to laboratory Q-machine studies we analyze the dynamics of a plasma diode under external forcing. Assuming a strong axial magnetic field, the problem is analyzed in one spatial dimension by a particle-in-cell ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
Several extensions of general relativity and high energy physics include scalar fields as extra degrees of freedom. In the search for predictions in the nonlinear regime of cosmological evolution, the community makes use ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
We study properties of domain walls in the symmetron model, in which the scalar gravitational degree of freedom decouples from matter in regions of high density and exhibits a spontaneously broken Z2 symmetry at low ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
New and advanced space-based observing facilities continue to lower the resolution limit and detect solar coronal loops in greater detail. We continue to discover even finer substructures within coronal loop cross-sections, ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The Chromospheric Lyman Alpha Spectropolarimeter (CLASP) observed the Sun in H i Lyα during a suborbital rocket flight on 2015 September 3. The Interface Region Imaging Telescope (IRIS) coordinated with the CLASP observations ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We perform non-LTE inversions in a large set of umbral flashes, including the dark fibrils visible within them, and in the quiescent umbra by using the inversion code NICOLE on a set of full Stokes high-resolution Ca ii ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
In order to determine the observable signatures of modified gravity theories, it is important to consider the effect of baryonic physics. We used a modified version of the ISIS code to run cosmological hydrodynamic simulations ...
(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 / AcceptedVersion; Peer reviewed, 2017)
In the lower solar atmosphere, the chromosphere is permeated by jets known as spicules, in which plasma is propelled at speeds of 50 to 150 kilometers per second into the corona. The origin of the spicules is poorly ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
We introduce Project MegaSaura: the Magellan Evolution of Galaxies Spectroscopic and Ultraviolet Reference Atlas. MegaSaura comprises medium-resolution, rest-frame ultraviolet spectroscopy of N = 15 bright gravitationally ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Context: One candidate model for heating the solar corona is magnetic reconnection that embodies Ohmic dissipation of current sheets. When numerous small-scale magnetic reconnection events occur, then it is possible to ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
The term “ultraviolet (UV) burst” is introduced to describe small, intense, transient brightenings in ultraviolet images of solar active regions. We inventorize their properties and provide a definition based on image ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
During its four years of photometric observations, the Kepler space telescope detected thousands of exoplanets and exoplanet candidates. One of Kepler’s greatest heritages has been the confirmation and characterization of ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Solar observations with the Atacama Large Millimeter/submillimeter Array (ALMA) provide us with direct measurements of the brightness temperature in the solar chromosphere. We study the temperature distributions obtained ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Galactic outflows are critical to our understanding of galaxy formation and evolution. However, the details of the underlying feedback process remain unclear. We compare Ly α observations of the circumgalactic medium (CGM) ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
We present a formalism to study screening mechanisms in modified theories of gravity through perturbative methods in different cosmological scenarios. We consider Einstein-frame posed theories that are recast as Jordan-frame ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Using the Planck full-mission data, we present a detection of the temperature (and therefore velocity) dispersion due to the kinetic SunyaevZeldovich (kSZ) effect from clusters of galaxies. To suppress the primary CMB and ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
We use high-resolution cosmological hydrodynamical simulations of Milky-Way-sized galaxies with varying supernova feedback strengths and merger histories to investigate the formation of their gaseous halos and especially ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Low-lying loops have been discovered at the solar limb in transition region temperatures by the Interface Region Imaging Spectrograph (IRIS). They do not appear to reach coronal temperatures, and it has been suggested that ...
(Master thesis / Masteroppgave, 2018)
In the 2015 Planck Isotropy and Statistics article, the dipolar asymmetry previously found in the WMAP data (Hansen et al. 2009) was found to extend to the smallest scales. While the statistical significance of this anomaly ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
We present detailed characteristics of linear polarization features (LPFs) in the quiet-Sun photosphere from high-resolution observations obtained with SUNRISE/IMaX. We explore differently treated data with various noise ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
The Atacama Large Millimeter/submillimeter Array (ALMA) Observatory opens a new window onto the Universe. The ability to perform continuum imaging and spectroscopy of astrophysical phenomena at millimetre and submillimetre ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
We use 3D magnetohydrodynamic CO5BOLD model atmospheres to study the interplay between magnetic fields and convection in the atmospheres of red giant stars. We find that vortex-like structures occur prominently in stars ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
We study a novel interacting dark energy − dark matter scenario where the anisotropic stress of the large-scale inhomogeneities is considered. The dark energy has a constant equation of state and the interaction model ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
The Vainshtein mechanism, present in many models of gravity, is very effective at screening dark matter haloes such that the fifth force is negligible and general relativity is recovered within their Vainshtein radii. ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
The Lambda-Cold Dark Matter (ΛCDM) model agrees with most of the cosmological observations, but has some hindrances from observed data at smaller scales such as galaxies. Recently, Berezhiani and Khoury proposed a new ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Context: The Kepler Object of Interest Network (KOINet) is a multi-site network of telescopes around the globe organised to follow up transiting planet-candidate Kepler objects of interest (KOIs) with large transit timing ...
(Master thesis / Masteroppgave, 2019)
Late time accelerated expansion of the universe is usually considered to be the result of dark energy, and the standard model of cosmology implements the cosmological constant as the drive of the acceleration of the universe. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
Context. Magnetic reconnection in the deep solar atmosphere can give rise to enhanced emission in the Balmer hydrogen lines, a phenomenon referred to as Ellerman bombs. Recent high-quality Hβ observations indicate that ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
We present a new perturbative approach to ‘constrained Ly α radiative transfer’ (RT) through the circum- and intergalactic medium (CGM and IGM). We constrain the H I content and kinematics of the CGM and IGM in a physically ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Euclid is a European Space Agency medium-class mission selected for launch in 2020 within the cosmic vision 2015–2025 program. The main goal of Euclid is to understand the origin of the accelerated expansion of the universe. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
The next generation of solar observatories aim to understand the magnetism of the solar chromosphere. Therefore, it is crucial to understand the polarimetric signatures of chromospheric spectral lines. For this purpose, ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
We present, for the first time, numerical simulations of young tidal dwarf galaxies (TDGs), including a self-consistent treatment of the tidal arm in which they are embedded. Thereby, we do not rely on idealized initial ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
The fraction of ionizing photons that escape high-redshift galaxies sensitively determines whether galaxies reionized the early Universe. However, this escape fraction cannot be measured from high-redshift galaxies because ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Context: The measured average velocities in solar and stellar spectral lines formed at transition region temperatures have been difficult to interpret. The dominant redshifts observed in the lower transition region naturally ...
(Master thesis / Masteroppgave, 2019)
Weak gravitational lensing provides a way of estimating the mass and mass distribution of galaxy clusters at large radii. The clusters act as lenses, so that light emitted by background sources, is bent and distorted by ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Recent observations show that the buildup and triggering of minifilament eruptions that drive coronal jets result from magnetic flux cancelation at the neutral line between merging majority- and minority-polarity magnetic ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Context. Nanoscale events in cooperation with steady heating from a slow heating mechanism, such as slow-burning current-sheets, could be able to heat the corona; however, their observational traces are hard to detect via ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Context: Umbral flashes (UF) and running penumbral waves (RPWs) in sunspot chromospheres leave a dramatic imprint in the intensity profile of the Ca II 8542 Å line. Recent studies have focussed on also explaining the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
We investigate the effects of radiative energy transfer on a series of nested-grid, high-resolution hydrodynamic simulations of gas and particle dynamics in the vicinity of an Earth-mass planetary embryo. We include heating ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
We measure the cosmological bias factor of damped Ly α absorbers (DLAs) from their crosscorrelation with the Ly α forest absorption, as a function of the DLA metal strength, defined from an average of equivalent widths of ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
A recent study using Hinode (Solar Optical Telescope/Filtergraph [SOT/FG]) data of a sunspot revealed some unusually large penumbral jets that often repeatedly occurred at the same locations in the penumbra, namely, at the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Ellerman bombs and UV bursts are transient brightenings that are ubiquitously observed in the lower atmospheres of active and emerging flux regions. As they are believed to pinpoint sites of magnetic reconnection in ...
(Doctoral thesis / Doktoravhandling, 2019)
The study of the Cosmic Microwave Background (CMB) is a cornerstone of modern cosmology and allows us to explore the history of the Universe. Both the temperature and the polarization of the CMB field carry vital information ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Galaxy cluster counts in bins of mass and redshift have been shown to be a competitive probe to test cosmological models. This method requires an efficient blind detection of clusters from surveys with a well-known selection ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
We present a Bayesian model for multi-resolution component separation for cosmic microwave background (CMB) applications based on Wiener filtering and/or computation of constrained realizations, extending a previously ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Dynamical jets are generally found on light bridges (LBs), which are key to studying sunspot decay. So far, their formation mechanism is not fully understood. In this paper, we used state-of-the-art observations from the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Context: Based on recent observations of the cosmic microwave background (CMB), claims of statistical anomalies in the properties of the CMB fluctuations have been made. Although the statistical significance of the anomalies ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
In modern weak-lensing surveys, the common approach to correct for residual systematic biases in the shear is to calibrate shape measurement algorithms using simulations. These simulations must fully capture the complexity ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Bars are a key factor in the long-term evolution of spiral galaxies, in their unique role in redistributing angular momentum and transporting gas and stars on large scales. The Eris-suite simulations are cosmological ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
The aim of this study is to demonstrate how the logarithmic millimeter continuum gradient observed using the Atacama Large Millimeter/submillimeter Array (ALMA) may be used to estimate optical thickness in the solar ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
We consider two stable Interacting Dark Matter-Dark Energy models and confront them against current Cosmic Microwave Background data from the Planck satellite. We then generate luminosity distance measurements from Script ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
e report observations of small-scale swirls seen in the solar chromosphere. They are typically 2 Mm in diameter and last around 10 minutes. Using spectropolarimetric observations obtained by the CRisp Imaging Spectro-Polarimeter ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
With a total integration time of 168 h and a narrowband filter tuned to Lyα emission from z = 8.8, the UltraVISTA survey has set out to find some of the most distant galaxies, on the verge of the epoch of reionization. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Context: Ellerman bombs (EBs), observed in the photospheric wings of the Hα line, and UV bursts, observed in the transition region Si IV line, are both brightenings related to flux emergence regions and specifically to ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
We derive the mass-temperature relation using an improved top-hat model and a continuous formation model which takes into account the effects of the ordered angular momentum acquired through tidal-torque interaction between ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Context. Densely packed coronal loops are rooted in photospheric plages in the vicinity of active regions on the Sun. The photospheric magnetic features underlying these plage areas are patches of mostly unidirectional ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
The availability of large data sets with stellar distance and polarization information will enable a tomographic reconstruction of the (plane-of-the-sky-projected) interstellar magnetic field in the near future. We demonstrate ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
The solar Lyα line is the strongest line in the ultraviolet waveband, and is greatly enhanced during solar flares. Here we present radiative hydrodynamic simulations of solar flares under different heating models, and ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
We present Hubble Space Telescope (HST) imaging and grism spectroscopy of a strongly lensed LIRG at z = 0.816, SGAS 143845.1+145407, and use the magnification boost of gravitational lensing to study the distribution of ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Searches for modified gravity in the large-scale structure try to detect the enhanced amplitude of density fluctuations caused by the fifth force present in many of these theories. Neutrinos, on the other hand, suppress ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
The detection of gravitational waves (GW) by the LIGO and Virgo collaborations offers a whole new range of possible tests and opens up a new window that may shed light on the nature of dark energy and dark matter. In the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Observations from the Interface Region Imaging Spectrograph often reveal significantly broadened and non-reversed profiles of the Mg ii h, k and triplet lines at flare ribbons. To understand the formation of these optically ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Context: There are currently no reliable methods to measure the transverse velocities of galaxies. This is an important piece of information that is lacking in galaxy catalogues, and it could allow us to probe the physics ...