Results 1 to 10 of about 7,678,122 (128)

A Milky Way-like barred spiral galaxy at a redshift of 3. [PDF]

Nature, 2023
Costantin L, Pérez-González PG, Guo Y, Buttitta C, Jogee S, Bagley MB, Barro G, Kartaltepe JS, Koekemoer AM, Cabello C, Corsini EM, Méndez-Abreu J, de la Vega A, Iyer KG, Bisigello L, Cheng Y, Morelli L, Arrabal Haro P, Buitrago F, Cooper MC, Dekel A, Dickinson M, Finkelstein SL, Giavalisco M, Holwerda BW, Huertas-Company M, Lucas RA, Papovich C, Pirzkal N, Seillé LM, Vega-Ferrero J, Wuyts S, Yung LYA.   +32 more
europepmc   +2 more sources

Physical Properties of Molecular Clouds at 2 pc Resolution in the Low-metallicity Dwarf Galaxy NGC 6822 and the Milky Way [PDF]

The Astrophysical Journal, 2017
Abstract We present the Atacama Large Millimeter/submillimeter Array survey of CO(2–1) emission from the 1/5 solar metallicity, Local Group dwarf galaxy NGC 6822. We achieve high ( pc) spatial resolution while covering a large area: four 250 pc × 250 pc regions that ...
Andreas Schruba, Adam K. Leroy, J. M. Diederik Kruijssen, Frank Bigiel, Alberto D. Bolatto, W. J. G. de Blok, Linda Tacconi, Ewine F. van Dishoeck, Fabian Walter   +8 more
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The role of galactic dynamics in shaping the physical properties of giant molecular clouds in Milky Way-like galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2020
ABSTRACT We examine the role of the large-scale galactic-dynamical environment in setting the properties of giant molecular clouds in Milky Way-like galaxies. We perform three high-resolution simulations of Milky Way-like discs with the moving-mesh hydrodynamics code arepo, yielding a statistical sample of ${\sim}80\, 000$ giant ...
Sarah M R Jeffreson, J M Diederik Kruijssen, Benjamin W Keller, Mélanie Chevance, Simon C O Glover   +4 more
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Calculation and comparison of certain physical properties of sample irregular galaxies with the Milky Way galaxy

Karbala International Journal of Modern Science, 2021
Irregular galaxies often include a mix of old and young celestial populations, as well as dust and gas. This study makes an early effort at the morphological classification of irregular galaxies. These sources have been chosen from (70) irregular galaxies data samples from a Catalogue survey. We present a statistical analysis of the physical properties
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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 ...
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Connecting star formation in the Milky Way and nearby galaxies – I. Comparability of molecular cloud physical properties

Monthly Notices of the Royal Astronomical Society
ABSTRACT 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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ARTEMIS emulator: exploring the effect of cosmology and galaxy formation physics on Milky Way-mass haloes and their satellites

Monthly Notices of the Royal Astronomical Society
ABSTRACT 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, Azadeh Fattahi, Ian G McCarthy, Andreea S Font, Kyle A Oman, Alexander H Riley   +5 more
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Bulgeless Evolution And the Rise of Discs (BEARD)

Astronomy & Astrophysics
In the standard Λ cold dark matter (ΛCDM) cosmology, galaxies grow through smooth accretion and hierarchical mergers. While this framework explains many large-scale structures, the existence of massive disc galaxies without prominent bulges-pure discs-remains a challenge.
C. Marrero-de la Rosa, J. Méndez-Abreu, A. de Lorenzo-Cáceres, S. Cardona-Barrero, J. Román, E. Arjona-Gálvez, M. Chamorro-Cazorla, E. M. Corsini, L. Costantin, V. Cuomo, C. Dalla Vecchia, A. Di Cintio, D. Fernández, D. Gasparri, E. Iodice, D. Mayya, L. Morelli, F. Pinna, A. Pizzella, D. Rosa-González, Y. Rosas-Guevara, O. Vega, S. Zarattini   +22 more
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Study of physical properties of molecular clouds in the Milky Way Galaxy based on FUGIN datasets with machine learning

Study of physical properties of molecular clouds in the Milky Way Galaxy based on FUGIN datasets with machine learning
2022 【要旨】
openaire   +3 more sources

"Fermi" bubbles are bursting from our galaxy. Their origins remain a mystery. [PDF]

Proc Natl Acad Sci U S A, 2023
Mann A.
europepmc   +1 more source