Results 101 to 110 of about 1,066 (187)

The Role of Spiral Arms in Galaxies

The Astrophysical Journal
We test the influence of spiral arms on the star formation activity of disk galaxies by constructing and fitting multiwavelength spectral energy distributions for the two nearby spiral galaxies NGC 628 and NGC 4321, at a spatial scale of 1–1.5 kpc ...
Bingqing Sun, Daniela Calzetti, Andrew J. Battisti   +2 more
doaj   +1 more source

Escaping Ionizing Photons from Massive Spiral Galaxies at z ∼ 1

The Astrophysical Journal
We report the detection of Lyman continuum (LyC) photons from three massive ( M _* > 10 ^10 M _⊙ ) spiral galaxies at a redshift of nearly 1 in the AstroSat UV Deep Field South.
Soumil Maulick, Kanak Saha
doaj   +1 more source

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   +1 more source

Reduction of the Bar Fraction in Paired Galaxies in the SDSS

The Astrophysical Journal
We investigate the bar fraction in galaxy pairs from the Sloan Digital Sky Survey to assess how galaxy interactions affect bar structures. Compared to isolated galaxies, close pairs exhibit a significantly reduced bar fraction at projected separations ...
Linlin Li, Shuai Feng, Shiyin Shen, Qi’an Deng, Ying Zu, Wenyuan Cui   +5 more
doaj   +1 more source

Identification of Intermediate-mass Black Hole Candidates among a Sample of Sd Galaxies

The Astrophysical Journal
We analyzed images of every northern hemisphere Sd galaxy listed in the Third Reference Catalogue of Bright Galaxies with a relatively face-on inclination ( θ ≤ 30°). Specifically, we measured the spiral arms’ winding angle, ϕ , in 85 galaxies.
Benjamin L. Davis, Alister W. Graham, Roberto Soria, Zehao Jin, Igor D. Karachentsev, Valentina E. Karachentseva, Elena D’Onghia   +6 more
doaj   +1 more source

Examination of the Functional Form of the Light and Mass Distribution in Spiral Arms

Galaxies
Spiral arms are a common feature of local galaxies, but the exact form of the distribution of mass and light in them is not well known. In this work, we aim to measure this distribution as accurately as possible, focusing on individual spiral arms and ...
Ilia V. Chugunov, Alexander A. Marchuk, Sergey S. Savchenko   +2 more
doaj   +1 more source

Spiral galaxies

, 1995
This thesis deals with surface photometry of face-on spiral galaxies in a statistical way, using both single passband as well as color information of a large sample of galaxies. In this chapter I first discuss galaxy formation and evolution models and the role that photometry plays in testing these models.
openaire   +1 more source

Polarized thermal emission from dust in a galaxy at redshift 2.6. [PDF]

Nature, 2023
Geach JE, Lopez-Rodriguez E, Doherty MJ, Chen J, Ivison RJ, Bendo GJ, Dye S, Coppin KEK.   +7 more
europepmc   +1 more source

Perspectives. [PDF]

AJNR Am J Neuroradiol, 2023
Ross JS.
europepmc   +2 more sources

Orbiting, colliding, and merging liquid lenses on a soap film: Toward gravitational analogs. [PDF]

PNAS Nexus
Martischang JP, Reichert B, Haouche I, Rousseaux G, Duchesne A, Baudoin M.   +5 more
europepmc   +1 more source