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 ...
Debra Meloy Elmegreen +1 more
openaire +2 more sources
PHANGS-JWST First Results: Spurring on Star Formation: JWST Reveals Localized Star Formation in a Spiral Arm Spur of NGC 628 [PDF]
Astrophysical Journal Letters, 2022 We combine JWST observations with Atacama Large Millimeter/submillimeter Array CO and Very Large Telescope MUSE Hα data to examine off-spiral arm star formation in the face-on, grand-design spiral galaxy NGC 628.
T. Williams +36 more
semanticscholar +1 more source
Synthetic HI observations of a simulated spiral galaxy [PDF]
, 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
Identification of Grand-design and Flocculent Spirals from SDSS using Convolutional Neural network [PDF]
, 2022 Spiral galaxies can be classified into the {\it Grand-designs} and {\it Flocculents} based on the nature of their spiral arms. The {\it Grand-designs} exhibit almost continuous and high contrast spiral arms and are believed to be driven by density waves, while the {\it Flocculents} have patchy and low-contrast spiral features and are primarily ...
arxiv +1 more source
The host of GRB 171205A in 3D. A resolved multiwavelength study of a rare grand-design spiral GRB host [PDF]
Astronomy & AstrophysicsLong GRB hosts at ...
C. Thone +19 more
semanticscholar +1 more source
Simulations of Normal Spiral Galaxies [PDF]
, 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 +4 more sources
A multi-wavelength study of spiral structure in galaxies. I. General characteristics in the optical [PDF]
, 2020 Different spiral generation mechanisms are expected to produce different morphological and kinematic features. In this first paper in a series we carefully study the parameters of spiral structure in 155 face-on spiral galaxies, selected from the Sloan Digital Sky Survey, in the three $gri$ bands.
arxiv +1 more source
The Carnegie-Irvine Galaxy Survey. VI. Quantifying Spiral Structure [PDF]
Astrophysical Journal, 2018 The Carnegie-Irvine Galaxy Survey provides high-quality broadband optical images of a large sample of nearby galaxies for detailed study of their structure. To probe the physical nature and possible cosmological evolution of spiral arms, a common feature
Sijie Yu, L. Ho, A. Barth, Zhao-Yu Li
semanticscholar +1 more source
Kinematics of the SN Refsdal host revealed by MUSE: a regularly rotating spiral galaxy at z ≃ 1.5 [PDF]
, 2018 We use Multi Unit Spectroscopic Explorer (MUSE) observations of the galaxy cluster MACS J1149.5+2223 to explore the kinematics of the grand-design spiral galaxy (Sp1149) hosting the supernova 'Refsdal'.
E. D. Teodoro +14 more
semanticscholar +1 more source
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.
Debra Meloy Elmegreen +1 more
openaire +2 more sources