68 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Uppsala UniversitySE12 papers
- Centre National de la Recherche ScientifiqueFR5 papers
- University of GenevaCH4 papers
- Astronomical Observatory of CapodimonteIT3 papers
- Brera Astronomical ObservatoryIT3 papers
- Durham UniversityGB3 papers
- European Space Astronomy CentreES3 papers
- Goddard Space Flight CenterUS3 papers
- Institut d'Astrophysique de ParisFR3 papers
- Institut de Recherche en Astrophysique et PlanétologieFR3 papers
- Institute of Astrophysics and Space SciencesPT3 papers
- Lyon 1 UniversitéFR3 papers
12 papers
Explanations for the two-component spectral energy distributions of gravitationally lensed stars at high redshifts
Armin Nabizadeh, Erik Zackrisson, Emma Lundqvist +4
Observations of gravitationally lensed, high-mass stars at redshifts occasionally reveal spectral energy distributions that contain two components with different effecti…
Project Hephaistos - II. Dyson sphere candidates from Gaia DR3, 2MASS, and WISE
Matías Suazo, Erik Zackrisson, Priyatam K. Mahto +5
The search for extraterrestrial intelligence is currently being pursued using multiple techniques and in different wavelength bands. Dyson spheres, megastructures that could be con…
Spectroscopic characterisation of gravitationally lensed stars at high redshifts
Emma Lundqvist, Erik Zackrisson, Calum Hawcroft +2
Deep imaging of galaxy cluster fields have in recent years revealed tens of candidates for gravitationally lensed stars at redshifts 1-6, and future searches are expecte…
Identification of 40 gravitationally magnified stars in a galaxy at redshift of 0.725
Yoshinobu Fudamoto, Fengwu Sun, Jose M. Diego +44
Strong gravitational magnifications enable to detect faint background sources, resolve their internal structures, and even identify individual stars in distant galaxies. Highly mag…
Galaxy Formation and Symbiotic Evolution with the Inter-Galactic Medium in the Age of ELT-ANDES
Valentina D'Odorico, James S. Bolton, Lise Christensen +21
High-resolution absorption spectroscopy toward bright background sources has had a paramount role in understanding early galaxy formation, the evolution of the intergalactic medium…
Euclid: Cosmological forecasts from the void size function
S. Contarini, G. Verza, A. Pisani +123
The Euclid mission with its spectroscopic galaxy survey covering a sky area over in the redshift range will provide a sample of tens o…
Euclid: Forecasts from redshift-space distortions and the Alcock-Paczynski test with cosmic voids
N. Hamaus, M. Aubert, A. Pisani +127
Euclid is poised to survey galaxies across a cosmological volume of unprecedented size, providing observations of more than a billion objects distributed over a third of the full s…
Conditions for detecting lensed Population III galaxies in blind surveys with the James Webb Space Telescope, the Roman Space Telescope and Euclid
Anton Vikaeus, Erik Zackrisson, Daniel Schaerer +5
Dark matter halos that reach the HI-cooling mass without prior star formation or external metal pollution represent potential sites for the formation of small - extremely faint - P…
Varying gauge couplings and collider phenomenology
Ulf Danielsson, Rikard Enberg, Gunnar Ingelman +1
In this paper we investigate a natural extension of the Standard Model that involves varying coupling constants. This is a general expectation in any fundamental theory such as str…
Nucleon parton distributions from hadronic quantum fluctuations
Andreas Ekstedt, Hazhar Ghaderi, Gunnar Ingelman +1
A physical model is presented for the non-perturbative parton distributions in the nucleon. This is based on quantum fluctuations of the nucleon into baryon-meson pairs convoluted…
Constructivist and Structuralist Foundations: Bishop's and Lawvere's Theories of Sets
Erik Palmgren
Bishop's informal set theory is briefly discussed and compared to Lawvere's Elementary Theory of the Category of Sets (ETCS). We then present a constructive and predicative version…
Metric complements of overt closed sets
Thierry Coquand, Erik Palmgren, Bas Spitters
We show that the set of points of an overt closed subspace of a metric completion of a Bishop-locally compact metric space is located. Consequently, if the subspace is, moreover, c…