Results 21 to 30 of about 52,093 (177)
On the persistence of two small-scale problems in {\Lambda}CDM
, 2015 We investigate the degree to which the inclusion of baryonic physics can overcome two long-standing problems of the standard cosmological model on galaxy scales: (i) the problem of satellite planes around Local Group galaxies, and (ii) the "too big to ...
Famaey, Benoit +3 more
core +2 more sources
The role of self-interacting right-handed neutrinos in galactic structure [PDF]
, 2015 It has been shown previously that the DM in galactic halos can be explained by a self-gravitating system of massive keV fermions (`inos') in thermodynamic equilibrium, and predicted the existence of a denser quantum core of inos towards the center of ...
Argüelles, C. R. +3 more
core +2 more sources
A Framework for Modeling Polycyclic Aromatic Hydrocarbon Emission in Galaxy Evolution Simulations
The Astrophysical Journal, 2023 We present a new methodology for simulating mid-infrared emission from polycyclic aromatic hydrocarbons (PAHs) in galaxy evolution simulations. To do this, we combine theoretical models of PAH emission features as they respond to varying interstellar ...
Desika Narayanan +9 more
doaj +1 more source
Fermionic Dark Matter: Physics, Astrophysics, and Cosmology
Universe, 2023 The nature of dark matter (DM) is one of the most relevant questions in modern astrophysics. We present a brief overview of recent results that inquire into the possible fermionic quantum nature of the DM particles, focusing mainly on the interconnection
C. R. Argüelles +3 more
doaj +1 more source
The Age-dependent Vertical Actions of Young Stars in the Galaxy
The Astrophysical JournalStars in the Galactic disk are born on cold, nearly circular orbits with small vertical excursions. After their birth, their orbits evolve, driven by small- or large-scale perturbations in the Galactic disk’s gravitational potential.
D. N. Garzon +4 more
doaj +1 more source
Latest results on dark matter searches with H.E.S.S [PDF]
EPJ Web of Conferences, 2019 The nature of Dark Matter (DM) is one of the most debated questions of contemporary physics. Ground-based arrays of Cherenkov telescopes such as the High Energy Spectroscopic System (H.E.S.S.) search for DM signatures through the detection of Very-High ...
Rinchiuso Lucia
doaj +1 more source
Monthly Notices of the Royal Astronomical SocietyABSTRACT We present the new ARTEMIS emulator suite of high-resolution (baryon mass of 2.23 × 104h−1 M⊙) zoom-in simulations of Milky Way-mass systems. Here, three haloes from the original ARTEMIS sample have been rerun multiple times, systematically varying parameters for the stellar feedback model, the density threshold for star ...
Shaun T Brown +5 more
openaire +2 more sources
Evidence for dark matter in the inner Milky Way
, 2015 The ubiquitous presence of dark matter in the universe is today a central tenet in modern cosmology and astrophysics. Ranging from the smallest galaxies to the observable universe, the evidence for dark matter is compelling in dwarfs, spiral galaxies ...
A Luna +38 more
core +1 more source
Advanced Science, EarlyView.Producing MSCs on rigid culture substrates induces a scar‐making phenotype, jeapordizing therapeutic success. ‘Tissue‐soft’ surfaces prevent MSC fibrogenesis and preserve regenerative traits. An epigenetic network, driven by HOXA11 and SALL1, maintains ‘soft memory’ by keeping chromatin open in relaxed MSCs, promoting anti‐fibrotic programs.
Fereshteh Sadat Younesi +7 more
wiley +1 more source
Public Data Release of the FIRE-2 Cosmological Zoom-in Simulations of Galaxy Formation
The Astrophysical Journal Supplement Series, 2023 We describe a public data release of the FIRE-2 cosmological zoom-in simulations of galaxy formation (available at http://flathub.flatironinstitute.org/fire ) from the Feedback In Realistic Environments (FIRE) project.
Andrew Wetzel +25 more
doaj +1 more source