Results 11 to 20 of about 8,556 (157)

A grand-design spiral galaxy 1.5 billion years after the Big Bang with JWST

Astronomy and Astrophysics
We report the discovery of Alaknanda, a large (∼10 kpc diameter), massive (log( M ⋆ / M ⊙ )∼10.2), candidate grand-design spiral galaxy with photometric redshift z phot
Rashi Jain, Yogesh Wadadekar
exaly   +4 more sources

A grand-design spiral galaxy with an ordered magnetic field at redshift 2.6 as resolved with ALMA and gravitational lensing

Monthly Notices of the Royal Astronomical Society: Letters
ABSTRACT Magnetic fields play an important role in the evolution of galaxies and in shaping the dynamics of their interstellar medium. However, the formation history of magnetic fields from initial seed-fields to well-ordered systems is not clear.
S Vegetti, D M Powell, Rüdiger Pakmor
exaly   +7 more sources

Gas and stellar spiral arms and their offsets in the grand-design spiral galaxy M51 [PDF]

Monthly Notices of the Royal Astronomical Society, 2016
Theoretical studies on the response of interstellar gas to a gravitational potential disc with a quasi-stationary spiral arm pattern suggest that the gas experiences a sudden compression due to standing shock waves at spiral arms. This mechanism, called a galactic shock wave, predicts that gas spiral arms move from downstream to upstream of stellar ...
Egusa, Fumi, Cooper, Erin Mentuch, Koda, Jin, Baba, Junichi   +3 more
openaire   +4 more sources

High-resolution, 3D radiative transfer modeling [PDF]

Astronomy & Astrophysics, 2014
Accepted for publication in Astronomy & Astrophysics, 23 pages, 15 ...
De Looze, Ilse, Fritz, Jacopo, Baes, Maarten, Bendo, George J., Cortese, Luca, Boquien, Mederic, Boselli, Alessandro, Camps, Peter, Cooray, Asantha, Cormier, Diane, Davies, Jon I., De Geyter, Gert, Hughes, Thomas M., Jones, Anthony P., Karczewski, Oskar L., Lebouteiller, Vianney, Lu, Nanyao, Madden, Suzanne C., Remy-Ruyer, Aurelie, Spinoglio, Luigi, Smith, Matthew W. L., Viaene, Sebastien, Wilson, Christine D.   +22 more
semanticscholar   +8 more sources

The sequence of spiral arm classes: Observational signatures of persistent spiral density waves in grand-design galaxies [PDF]

Proceedings of the International Astronomical Union, 2019
AbstractWe investigate how the properties of spiral arms relate to other fundamental galaxy properties. To this end, we use previously published measurements of those properties, and our own measurements of arm-interarm luminosity contrasts for a large sample of galaxies, using 3.6μm images from the Spitzer Survey of Stellar Structure in Galaxies ...
Bittner, A., Gadotti, D. A., Elmegreen, B. G., Athanassoula, E., Elmegreen, D. M., Bosma, A., Muñoz-Mateos, J.   +6 more
openaire   +5 more sources

A panchromatic spatially resolved analysis of nearby galaxies – I. Sub-kpc-scale main sequence in grand-design spirals [PDF]

Monthly Notices of the Royal Astronomical Society, 2020
ABSTRACT We analyse the spatially resolved relation between stellar mass (M⋆) and star formation rate (SFR) in disc galaxies (i.e. the main sequence, MS). The studied sample includes eight nearby face-on grand-design spirals, e.g. the descendant of high-redshift, rotationally supported star-forming galaxies.
A Enia, G Rodighiero, L Morselli, V Casasola, S Bianchi, L Rodriguez-Muñoz, C Mancini, A Renzini, P Popesso, P Cassata, M Negrello, A Franceschini   +11 more
openaire   +6 more sources

PANORAMIC: Discovery of an ultra-massive grand-design spiral galaxy at z ∼ 5.2

Astronomy & Astrophysics
We report the discovery of an ultra-massive grand-design red spiral galaxy, named Zhúlóng (Torch Dragon), at zphot = 5.2−0.2+0.3 in the JWST PANORAMIC survey; it is the most distant bulge+disk galaxy candidate with spiral arms known to date. Zhúlóng displays an extraordinary combination of properties: (1) a classical bulge centered in a large, face-on ...
Xiao, Mengyuan, Williams, Christina, Oesch, Pascal, Elbaz, David, Dessauges-Zavadsky, Miroslava, Marques-Chaves, Rui, Bing, Longji, Ji, Zhiyuan, Weibel, Andrea, Bezanson, Rachel, Brammer, Gabriel, Casey, Caitlin, Cloonan, Aidan, Daddi, Emanuele, Dayal, Pratika, Faisst, Andreas, Franx, Marijn, Glazebrook, Karl, Hutter, Anne, Kartaltepe, Jeyhan, Labbe, Ivo, Lagache, Guilaine, Lim, Seunghwan, Magnelli, Benjamin, Martinez, Felix, Maseda, Michael, Nanayakkara, Themiya, Schaerer, Daniel, Whitaker, Katherine   +28 more
openaire   +4 more sources

A New Statistical Analysis of the Morphology of Spiral Galaxies [PDF]

The Astronomical Journal
Morphology is the starting point for understanding galaxies. Elmegreen et al. classified spiral galaxies into flocculent, multiple-arm, and grand-design galaxies based on the regularity of their spiral arm structure.
Junye Wei, Ye Xu, Zehao Lin, Chaojie Hao, Yingjie Li, Dejian Liu, Shuaibo Bian   +6 more
doaj   +2 more sources

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

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 ...
Debra Meloy Elmegreen, Bruce G Elmegreen
exaly   +2 more sources

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

EPJ 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, Pety Jérôme, Bešlić Ivana, Eibensteiner Cosima, Stuber Sophia, Leroy Adam, Hughes Annie, Usero Antonio, Bigiel Frank   +8 more
doaj   +1 more source