Results 11 to 20 of about 1,672 (191)
Discovery and Spectroscopic Confirmation of Aquarius III: A Low-mass Milky Way Satellite Galaxy
The Astrophysical JournalWe present the discovery of Aquarius III, an ultra-faint Milky Way satellite galaxy identified in the second data release of the DECam Local Volume Exploration survey.
W. Cerny +40 more
doaj +3 more sources
Discovery and Modeling of Milky Way Stellar Streams [PDF]
, 2021 Stellar streams, the tidal remnants of accreted globular clusters and dwarf galaxies, are uniquely powerful tools for studying the Milky Way. In particular, they allow for strong constraints on the local distribution of dark matter, and they provide ...
Shipp, Nora
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The Milky Way - Our Home in the Universe
, 2018 Aakasha Ganga, Via Lactea or the Milky Way is our home in the Universe. The discovery of the telescope by Galileo Galilei had facilitated the sky watchers to notice a variety of geometrical forms in the sky.
Divakara Mayya
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A Physical Interpretation of Milky Way Galaxy Dynamics from Precision Astrometrics
, 2020 The dynamical and virial mass of the Milky Way galaxy is estimated using latest high precision stellar halo and dwarf galaxy satellite kinematics. The new data suggest the Galaxy is a highly compact, classically thermalized object. Kinematics exhibit significant velocity-spatial substructure, distinctive dynamic partitions, and strong Keplerian ...
openaire +2 more sources
Monthly Notices of the Royal Astronomical SocietyABSTRACT We used CO (2–1) and CO (1–0) data cubes to identify molecular clouds and study their kinematics and dynamics in three nearby galaxies and the inner Milky Way. When observed at similar spatial and velocity resolutions, molecular clouds in the same mass range across these galaxies show broadly comparable physical properties ...
J W Zhou, Sami Dib
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The origin of the dust extinction curve in milky way-like galaxies [PDF]
, 2021 We develop a cosmological model for the evolution of dust grains in galaxies with a distribution of sizes in order to understand the origin of the Milky Way dust extinction curve.
Vogelsberger, M. +8 more
core +1 more source
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
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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
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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
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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