Results 51 to 60 of about 184,560 (234)
CO Multi-line Imaging of Nearby Galaxies (COMING): I. Physical properties of molecular gas in the barred spiral galaxy NGC 2903 [PDF]
, 2016 We present simultaneous mappings of J=1-0 emission of 12CO, 13CO, and C18O molecules toward the whole disk (8' x 5' or 20.8 kpc x 13.0 kpc) of the nearby barred spiral galaxy NGC 2903 with the Nobeyama Radio Observatory 45-m telescope at an effective ...
K. Muraoka +18 more
semanticscholar +1 more source
Dense Cloud Formation and Star Formation in a Barred Galaxy [PDF]
, 2012 We investigate the properties of massive, dense clouds formed in a barred galaxy and their possible relation to star formation, performing a two-dimensional hydrodynamical simulation with the gravitational potential obtained from the 2Mass data from the ...
A. Habe +43 more
core +2 more sources
The Visibility of Galactic Bars and Spiral Structure At High Redshifts [PDF]
, 2002 We investigate the visibility of galactic bars and spiral structure in the distant Universe by artificially redshifting 101 B-band CCD images of local spiral galaxies from the Ohio State University Bright Spiral Galaxy Survey. Our artificially redshifted
Abraham R. G. +9 more
core +2 more sources
Effects of the Central Mass Concentration on Bar Formation in Disk Galaxies
The Astrophysical Journal, 2023 While bars are common in disk galaxies, their formation conditions are not well understood. We use N -body simulations to study the formation and evolution of a bar in isolated galaxies consisting of a stellar disk, a classical bulge, and a dark halo. We
Dajeong Jang, Woong-Tae Kim
doaj +1 more source
Early-growing Supermassive Black Holes Strengthen Bars and Boxy/Peanut Bulges
The Astrophysical Journal, 2023 Using N -body simulations, we explore the effects of growing a supermassive black hole (SMBH) prior to or during the formation of a stellar bar. Keeping the final mass and growth rate of the SMBH fixed, we show that if it is introduced before or while ...
Vance Wheeler +4 more
doaj +1 more source
A Compton thick AGN in the barred spiral galaxy NGC 4785 [PDF]
, 2014 We present X-ray observations of the active galactic nucleus (AGN) in NGC 4785. The source is a local Seyfert 2 which has not been studied so far in much detail.
P. Gandhi +8 more
semanticscholar +1 more source
GASP. XLV. Stellar Bars in Jellyfish Galaxies: Analysis of Ionized Gas and Stellar Populations
The Astrophysical Journal, 2023 Stellar bars have been found to substantially influence the properties of stellar populations in galaxies, affecting their ability to form stars. While this can be easily seen when studying galaxies in relatively isolated environments, such type of ...
Osbaldo Sánchez-García +9 more
doaj +1 more source
Perturbed precessing ellipses as the building blocks of spiral arms in a barred galaxy with two pattern speeds [PDF]
, 2022 Observations and simulations of barred spiral galaxies have shown that, in general, the spiral arms rotate at a different pattern speed to that of the bar. The main conclusion from the bibliography is that the bar rotates faster than the spiral arms with a double or even a triple value of angular velocity.
arxiv +1 more source
The Astrophysical Journal Letters, 2023 A primary new capability of JWST is the ability to penetrate the dust in star-forming galaxies to identify and study the properties of young star clusters that remain embedded in dust and gas. In this Letter we combine new infrared images taken with JWST
Bradley C. Whitmore +30 more
doaj +1 more source
Bar pattern speeds in CALIFA galaxies III. Solving the puzzle of ultrafast bars [PDF]
A&A 649, A30 (2021), 2021 More than 10% of the barred galaxies with a direct measurement of the bar pattern speed host an ultrafast bar. These bars extend beyond the corotation radius and challenge our understanding of the orbital structure of barred galaxies. Most of them are found in spiral galaxies, rather than in lenticular ones.
arxiv +1 more source