Results 141 to 150 of about 8,690 (179)

Non-circular motion estimation of the grand-design spiral galaxy NGC 628

AIP Conference Proceedings, 2013
I present a harmonic decomposition analysis of the grand-design spiral galaxy NGC 628 using the H I data from The H I Nearby Galaxy Survey (THINGS), Walter et al., Astron. J. 136, 2563 (2008). The harmonic decomposition analysis allows the estimation of the peculiar motion magnitude of the galaxy not counted in the rotation of the disk.
D. Colombo
semanticscholar   +2 more sources

Grand Design, Multiple Arm, and Flocculent Spiral Galaxies

Annals of the New York Academy of Sciences, 1990
Les proprietes et les origines possibles de 3 types de structure spirale galactique sont passees en ...
Bruce G. Elmegreen
openalex   +2 more sources

Evidence for small halos in grand design spiral galaxies

The Astrophysical Journal, 1990
Les courbes de rotation de 41 galaxies spirales de differents types sont comparees. Il est montre que les galaxies ayant deux bras longs et symetriques tendent a avoir des courbes de rotation exterieures tombantes alors que les galaxies ayant des bras multiples ou des bras floconneux courts ont plutot des courbes de rotation presques plates ou s ...
D. M. Elmegreen, Bruce G. Elmegreen
openalex   +2 more sources

On the relative frequency of flocculent and grand design spiral structures in barred galaxies

The Astrophysical Journal, 1989
The bars in late-type spiral galaxies (SBbc to SBm and SABbc to SABm) show little correlation with grand design spiral structure, unlike the bars in early-type galaxies. This is further evidence for two different types of bars in the SB morphological class, and two different types of ovals in the SAB class.
Bruce G. Elmegreen, D. M. Elmegreen
openalex   +2 more sources

Blue and near-infrared surface photometry of spiral structure in 34 nonbarred grand design and flocculent galaxies

The Astrophysical Journal Supplement Series, 1984
On a examine les profils radiaux du disque et la structure des bras spiraux des 34 galaxies. On donne les profils azimutaux et les diagrammes couleur-amplitude des bras spiraux. On discute des modeles d'evolution de la couleur. Ces modeles sont utilises pour determiner l'amplitude des spirales de densite stellaire sous jacentes et le renforcement ...
D. M. Elmegreen, Bruce G. Elmegreen
openalex   +2 more sources

The TYPHOON Stellar Population Synthesis Survey. II. Pushing Full Spectral Fitting to the Limit in the Nearby Grand Design Barred Spiral M83

Astrophysical Journal
We apply population synthesis techniques to analyze TYPHOON long slit spectra of the starburst barred spiral galaxy M83. The analysis covers a central square of 5′ side length.
Eva Sextl, R. Kudritzki, F. Bresolin, Kathryn Grasha, Hye-Jin Park, Q. Chen 陈, A. Battisti, M. Seibert, B. Madore, J. Rich   +9 more
semanticscholar   +1 more source

A PAH deficit in the starburst core of a distant spiral galaxy

Monthly notices of the Royal Astronomical Society
We present high-resolution and spatially-matched observations with JWST and ALMA of a starburst galaxy (PACS-830) at z = 1.46. The NIRCam observations mainly trace the stellar light while the CO (J=5–4) observations map the dense molecular gas at kpc ...
Zhaoxuan Liu, J. Silverman, E. Daddi, B. Kalita, A. Puglisi, Qinyue Fei, A. Renzini, D. Kashino, F. Valentino, J. Kartaltepe, Daizhong Liu, P. P'erez-Gonz'alez, J. McKinney, Caitlin M. Casey, Xuheng Ding, A. Faisst, M. Franco, D. Kakkad, A. Koekemoer, E. Lambrides, S. Gillman, G. Gozaliasl, H. McCracken, J. Rhodes, B. Robertson, G. Rodighiero, W. Rujopakarn, Tomoko Suzuki, Takumi S. Tanaka, B. Vanderhoof, A. Vijayan, O. Cooper, A. Kaminsky, G. Magdis, N. Roy   +34 more
semanticscholar   +1 more source

Gravitational instability and spatial regularity of the gas clouds and young stellar population in spiral arms of NGC 628

Astronomy & Astrophysics
There is a clear contradiction between the characteristic spacings in observed regular chains of star-forming regions in the spiral arms of galaxies (∼500 pc) and the estimates of the wavelength of gravitational instability in them ($>1$ kpc).
V. Kostiuk, A. Gusev, A. Marchuk, E. Shimanovskaya   +3 more
semanticscholar   +1 more source

Alaknanda: A rare grand design spiral galaxy at z~4 with JWST

Presented in the last Galaxies session (after coffee break) on 16th September 2025.
openaire   +1 more source

A repeating fast radio burst source localized to a nearby spiral galaxy

Nature, 2020
Benito Marcote, Kenzie Nimmo, Jason Hessels   +2 more
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