Results 21 to 30 of about 466,777 (152)
Stellar population gradients in galaxy discs from the CALIFA survey : the influence of bars [PDF]
, 2014 We acknowledge financial support from the research projects under grants AYA2010-21887-C04-03, AYA2010-21322-C03-03 and AYA2010-15081 by the Spanish Ministerio de Ciencia e Innovación.While studies of gas-phase metallicity gradients in disc galaxies are ...
Wisotzki, L. +73 more
core +1 more source
Unraveling Joint Evolution of Bars, Star Formation, and Active Galactic Nuclei of Disk Galaxies
The Astrophysical Journal, 2023 We aim to unravel the interplay between bars, star formation (SF), and active galactic nuclei (AGNs) in barred galaxies. To this end, we utilize the SDSS DR12 to select a sample of nearby (0.02 < z < 0.06) disk galaxies that are suitable for bar ...
Woong-Bae G. Zee +3 more
doaj +1 more source
Towards understanding the dynamics of the bar/bulge region in our Galaxy
EPJ Web of Conferences, 2012 I review some of the work on bars which is closely linked to the bar/bulge system in our Galaxy. Several independent studies, using totally independent methods, come to the same results about the 3D structure of a bar, i.e., that a bar is composed of a ...
Athanassoula E.
doaj +1 more source
Nested bars with different pattern speeds: NGC 2950
, 2005 We studied the SB0 galaxy NGC 2950, which hosts two nested stellar bars. We used the Tremaine-Weinberg method to measure the pattern speed of the primary bar.
DEBATTISTA V. P. +5 more
core +1 more source
Properties of barred galaxies with the environment
Astronomy & AstrophysicsContext. Bars are elongated structures developed by a large fraction of disk galaxies in their central few kiloparsecs. However, the bar formation process is still not fully understood, particularly the role played by the galaxy environment in the ...
Cuomo Virginia +4 more
doaj +1 more source
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
The Effect of Superpositions on the Planetary Nebula Luminosity Function
The Astrophysical Journal, 2023 Planetary nebula (PN) surveys in systems beyond ∼10 Mpc often find high-excitation, point-like sources with [O iii ] λ 5007 fluxes greater than the apparent bright-end cutoff of the planetary nebula luminosity function (PNLF).
Owen Chase +3 more
doaj +1 more source
Identification and Analysis of Galactic Bars in DESI Legacy Imaging Surveys
The Astrophysical JournalWe present a comprehensive study of bar structures in the local universe using data from the DESI Legacy Imaging Surveys. Through isophotal analysis of 232,142 galaxies, we identify bars and classify them into strong and weak categories based on ...
Wenwen Wang, Zhimin Zhou
doaj +1 more source
Viral Genome Sequencing Tutorial
, 2018 <p>Datasets required for the Galaxy Training on Viral Genome Sequencing</p ...
Galaxy Training Network (8220705) +1 more
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