Results 131 to 140 of about 443,565 (219)

HI OBSERVATIONS OF BINARY SPIRAL GALAXIES

open access: yes, 1993
Observations in the 21 cm line of neutral hydrogen made with the Arecibo- and the Westerbork radio telescopes are presented of a sample of binary spiral galaxies.
SHOSTAK, S, OOSTERLOO, T
core   +1 more source

Escaping Ionizing Photons from Massive Spiral Galaxies at z ∼ 1

open access: yesThe 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

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

open access: yesThe 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   +6 more
doaj   +1 more source

Spiral galaxies

open access: yes, 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

Supernovae and molecular clouds in spiral galaxies

open access: yes, 2001
We report N-body simulations of the birthrate and distribution of supernovae in spiral galaxies. The simulations assume that stars form in GMCs with mass greater than 10(5) Mcircle dot and that a Miller-Scalo IMF results.
Song, GX   +4 more
core  

Reduction of the Bar Fraction in Paired Galaxies in the SDSS

open access: yesThe 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   +5 more
doaj   +1 more source

On leading spiral arms in close pairs of galaxies [PDF]

open access: yes, 1990
It is explained why one can observe a leading spiral pattern in close pairs of galaxies where the direction of the orbital momentum of the satellite is opposite to the direction of the spin of the spiral ...
Fridman, A. M.
core  

A Milky Way-like barred spiral galaxy at a redshift of 3. [PDF]

open access: yesNature, 2023
Costantin L   +32 more
europepmc   +1 more source

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

open access: yesNature, 2023
Geach JE   +7 more
europepmc   +1 more source

Perspectives. [PDF]

open access: yesAJNR Am J Neuroradiol, 2023
Ross JS.
europepmc   +2 more sources

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