Results 1 to 10 of about 7,605 (73)

A Cloud-Scale View of the Molecular Gas Disk in the Whirlpool Galaxy and Beyond [PDF]

open access: yesEPJ Web of Conferences, 2022
The nearby galaxy M51 (also known as the Whirlpool galaxy) hosts an iconic grand-design spiral pattern and both IRAM facilities conducted the first cloud-scale (∼50 pc resolution) survey of the molecular gas reservoir across a the disk of a massive star ...
Schinnerer Eva   +8 more
doaj   +1 more source

Dust Emission in Galaxies at Millimeter Wavelengths: Cooling of star forming regions in NGC6946 [PDF]

open access: yesEPJ Web of Conferences, 2022
Interstellar dust plays an important role in the formation of molecular gas and the heating and cooling of the interstellar medium. The spatial distribution of the mm-wavelength dust emission from galaxies is largely unexplored. The NIKA2 Guaranteed Time
Ejlali G.   +56 more
doaj   +1 more source

PHANGS–JWST First Results: Multiwavelength View of Feedback-driven Bubbles (the Phantom Voids) across NGC 628

open access: yesThe Astrophysical Journal Letters, 2023
We present a high-resolution view of bubbles within the Phantom Galaxy (NGC 628), a nearby (∼10 Mpc), star-forming (∼2 M _⊙ yr ^−1 ), face-on ( i ∼ 9°) grand-design spiral galaxy.
Ashley. T. Barnes   +53 more
doaj   +1 more source

PHANGS–JWST First Results: A Combined HST and JWST Analysis of the Nuclear Star Cluster in NGC 628

open access: yesThe Astrophysical Journal Letters, 2023
We combine archival Hubble Space Telescope and new James Webb Space Telescope imaging data covering the ultraviolet to mid-infrared regime to morphologically analyze the nuclear star cluster (NSC) of NGC 628, a grand-design spiral galaxy.
Nils Hoyer   +30 more
doaj   +1 more source

Synthetic HI observations of a simulated spiral galaxy [PDF]

open access: yes, 2010
Using the Torus radiative transfer code we produce synthetic observations of the 21 cm neutral hydrogen line from an SPH simulation of a spiral galaxy. The SPH representation of the galaxy is mapped onto an AMR grid, and a ray tracing method is used to ...
Acreman   +50 more
core   +1 more source

Simulations of Normal Spiral Galaxies [PDF]

open access: yes, 2003
Results are presented of numerical simulations of normal isolated late type spiral galaxies. Specifically the galaxy NGC 628 is used as a template. The method employs a TREESPH code including stellar particles, gas particles, cooling and heating of the ...
Bottema, Roelof
core   +5 more sources

Environment Dependence of Disk Morphology of Spiral Galaxies [PDF]

open access: yes, 2014
We analyze the dependence of disk morphology (arm class, Hubble type, bar type) of nearby spiral galaxies on the galaxy environment by using local background density ($\Sigma_{n}$), projected distance ($r_{p}$), and tidal index ($TI$) as measures of the ...
Ann, H. B.
core   +1 more source

Grand Design and Flocculent Spirals in the Spitzer Survey of Stellar Structure in Galaxies (S4G) [PDF]

open access: yes, 2011
Spiral arm properties of 46 galaxies in the Spitzer Survey of Stellar Structure in Galaxies (S4G) were measured at 3.6mu, where extinction is small and the old stars dominate.
Albert Bosma   +73 more
core   +3 more sources

Short-term dynamical evolution of grand-design spirals in barred galaxies

open access: yes, 2015
We investigate the short-term dynamical evolution of stellar grand-design spiral arms in barred spiral galaxies using a three-dimensional (3D) $N$-body/hydrodynamic simulation.
Baba, Junichi
core   +1 more source

Dust-penetrated morphology in the high-redshift universe: clues from NGC 922 [PDF]

open access: yes, 2001
Results from the Hubble Deep Field (HDF) North and South show a large percentage of high-redshift galaxies whose appearance falls outside traditional classification systems.
A. Stockton   +34 more
core   +2 more sources

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