Results 41 to 50 of about 470,379 (288)

DGSAT: Dwarf Galaxy Survey with Amateur Telescopes I. Discovery of low surface brightness systems around nearby spiral galaxies [PDF]

open access: yes, 2015
Context: We introduce the Dwarf Galaxy Survey with Amateur Telescopes (DGSAT) project and report the discovery of eleven low surface brightness (LSB) galaxies in the fields of the nearby galaxies NGC 2683, NGC 3628, NGC 4594 (M104), NGC 4631, NGC 5457 ...
B. Javanmardi   +11 more
semanticscholar   +1 more source

Spiral galaxies in the SAURON survey [PDF]

open access: yesProceedings of the International Astronomical Union, 2007
AbstractWe discuss some recent integral field spectroscopy using the SAURON instrument of a sample consisting of 24 early-type spirals, part of the SAURON Survey, and 18 late-type spirals. Using 2-dimensional maps of their stellar radial velocity, velocity dispersion, and absorption line strength, it is now much easier to understand the nature of ...
Peletier, R   +12 more
openaire   +3 more sources

HOT GASEOUS CORONAE AROUND SPIRAL GALAXIES: PROBING THE ILLUSTRIS SIMULATION [PDF]

open access: yes, 2015
The presence of hot gaseous coronae around present-day massive spiral galaxies is a fundamental prediction of galaxy formation models. However, our observational knowledge remains scarce, since to date only four gaseous coronae have been detected around ...
Á. Bogdán   +12 more
semanticscholar   +1 more source

Kinematically lopsided spiral galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1999
6 pages, accepted for ...
T. S. van Albada   +3 more
openaire   +5 more sources

Accretion, radial flows and abundance gradients in spiral galaxies [PDF]

open access: yes, 2015
The metal-poor gas continuously accreting on to the discs of spiral galaxies is unlikely to arrive from the intergalactic medium (IGM) with exactly the same rotation velocity as the galaxy itself and even a small angular momentum mismatch inevitably ...
G. Pezzulli, F. Fraternali
semanticscholar   +1 more source

Radio AGN in spiral galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2015
Radio AGN in the nearby Universe are more likely to be found in galaxies with early-type morphology, the detection rate in spiral or late-type galaxies (LTGs) being around an order of magnitude lower. We combine the mJy Imaging VLBA Exploration at 20 cm (mJIVE-20) survey with the Sloan Digital Sky Survey, to study the relatively rare population of AGN ...
Kaviraj, Sugata   +3 more
openaire   +4 more sources

Spin Parity of Spiral Galaxies. I. Corroborative Evidence for Trailing Spirals

open access: yesThe Astrophysical Journal, 2019
Whether the spiral structure of galaxies is trailing or leading has been a subject of debate. We present a new spin parity catalog of 146 spiral galaxies that lists the following three pieces of information: whether the spiral structure observed on the ...
Masanori Iye   +2 more
doaj   +1 more source

IN-N-OUT: THE GAS CYCLE FROM DWARFS TO SPIRAL GALAXIES [PDF]

open access: yes, 2015
We examine the scalings of galactic outflows with halo mass across a suite of 20 high-resolution cosmological zoom galaxy simulations covering halo masses in the range .
C. Christensen   +7 more
semanticscholar   +1 more source

The profiles of bars in spiral galaxies

open access: yesMonthly Notices of the Royal Astronomical Society, 2023
ABSTRACT We present an analysis of major-axis surface-brightness profiles of bars in a volume-limited sample of 182 barred spiral galaxies, using Spitzer 3.6 $\mu$m images. Unlike most previous studies, we use the entire bar profile, and we classify profiles into four categories.
Peter Erwin   +2 more
openaire   +2 more sources

Discovery of rare double-lobe radio galaxies hosted in spiral galaxies [PDF]

open access: yes, 2015
Double-lobe radio galaxies in the local Universe have traditionally been found to be hosted in elliptical or lenticular galaxies. We report the discovery of four spiral-host double-lobe radio galaxies (J0836+0532, J1159+5820, J1352+3126 and J1649+2635 ...
Veeresh Singh   +5 more
semanticscholar   +1 more source

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