Results 21 to 30 of about 37,989 (204)
ARE (PSEUDO)BULGES IN ISOLATED GALAXIES ACTUALLY PRIMORDIAL RELICS? [PDF]
The Astrophysical Journal, 2014 9 pages, 4 figures, accepted for publication in ...
M. Fernández Lorenzo +9 more
openaire +3 more sources
Possible formation of ring galaxies by torus-shaped magnetic wormholes
European Physical Journal C: Particles and Fields, 2020 We present the hypothesis that some of ring galaxies were formed by relic magnetic torus-shaped wormholes. In the primordial plasma before the recombination magnetic fields of wormholes trap baryons whose energy is smaller than a threshold energy.
A. A. Kirillov, E. P. Savelova
doaj +1 more source
Complex Organics in Space: A Changing View of the Cosmos
Galaxies, 2023 Planetary explorations have revealed that complex organics are widely present in the solar system. Astronomical infrared spectroscopic observations have discovered that complex organics are synthesized in large quantities in planetary nebulae and ...
Sun Kwok
doaj +1 more source
Probing the Nature of the First Galaxies with JWST and ALMA
The Astrophysical Journal Letters, 2023 By implementing a model of primordial dust emission, we predict dust-continuum fluxes for massive galaxy sources similar to those recently detected by James Webb Space Telescope (JWST) at z ≳ 7.
María Emilia De Rossi, Volker Bromm
doaj +1 more source
Hierarchical merger of primordial black holes in dwarf galaxies
Journal of Cosmology and Astroparticle Physics, 2022 Abstract We study the merger history of primordial black holes (PBHs) in a scenario where they represent the dominant dark matter component of a typical dwarf galaxies' core. We investigate the possibility of a sequence of collisions resulting in a hierarchical merger of black holes, and look at the final mass spectrum in such clusters ...
Erfani, Encieh +2 more
openaire +2 more sources
Primordial gravitational waves from galaxy intrinsic alignments [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 24+23 pages, 6 figures, code available at https://gitlab.com/mbiagetti/tensor_fossil, updated to published ...
Biagetti, M., Orlando, G.
openaire +5 more sources
Cosmological Information in the Intrinsic Alignments of Luminous Red Galaxies [PDF]
, 2013 The intrinsic alignments of galaxies are usually regarded as a contaminant to weak gravitational lensing observables. The alignment of Luminous Red Galaxies, detected unambiguously in observations from the Sloan Digital Sky Survey, can be reproduced by ...
Chisari, Nora Elisa, Dvorkin, Cora
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On the deuterium abundance and the importance of stellar mass loss in the interstellar and intergalactic medium [PDF]
, 2018 We quantify the gas-phase abundance of deuterium and fractional contribution of stellar mass loss to the gas in cosmological zoom-in simulations from the Feedback In Realistic Environments project.
Chan, T. K. +7 more
core +6 more sources
Dwarf Sphs/First-galaxies connection [PDF]
, 2002 I analyze the properties of the first galaxies in cosmological simulations with radiative feedback. Preliminary results indicate similarities with the observed properties of the bulk of dwarf spheroidal galaxies (dSphs) in the Local Group and Andromeda ...
M Ricotti, M Ricotti
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