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Related papers: The stellar mass distribution of S$^{4}$G disk gal…

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We exploit deep integral-field spectroscopic observations with KMOS/VLT of 240 star-forming disks at 0.6 < z < 2.6 to dynamically constrain their mass budget. Our sample consists of massive ($\gtrsim 10^{9.8} M_\odot$) galaxies with sizes…

We obtained stellar ages and metallicities via spectrum fitting for a sample of 575 bulges with spectra available from the Sloan Digital Sky Survey. The structural properties of the galaxies have been studied in detail in Gadotti (2009b)…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Paula Coelho , Dimitri A. Gadotti

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…

Astrophysics of Galaxies · Physics 2015-06-05 M. Nimori , A. Habe , K. Sorai , Y. Watanabe , A. Hirota , D. Namekata

Understanding the role of galactic scale bars in disk galaxy evolution requires detailed measurements of bar properties across galaxies hosting bars at many redshifts. We present measurements of bar lengths and widths in a sample of 8230…

In this paper, we use the Galaxy Zoo 2 dataset to study the behavior of bars in disk galaxies as a function of specific star formation rate (SSFR), and bulge prominence. Our sample consists of 13,295 disk galaxies, with an overall (strong)…

We present the first attempt to analyse the growth of the bar instability in stellar-gaseous disks evolving in a fully consistent cosmological scenario. We explored the role of the cosmology on pure stellar disks with different mass…

Astrophysics · Physics 2008-09-24 Anna Curir , Paola Mazzei , Giuseppe Murante

We study the clustering properties of barred galaxies using data from the Sloan Digital Sky Survey (SDSS). We compute projected redshift-space two-point cross-correlation functions w_p(r_p) for a sample of nearly 1000 galaxies for which we…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Cheng Li , Dimitri A. Gadotti , Shude Mao , Guinevere Kauffmann

We present a study of the bar fraction in the Coma cluster galaxies based on a sample of $\sim 190$ galaxies selected from the Sloan Digital Sky Survey Data Release 6 (SDSS-DR6) and observed with the Hubble Space Telescope (HST) Advanced…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 J. Mendez-Abreu , R. Sanchez-Janssen , J. A. L. Aguerri

This paper presents the results of a high-resolution imaging survey, using both ground-based and Hubble Space Telescope images, of a complete sample of nearby barred S0--Sa galaxies in the field, with a particular emphasis on identifying…

Astrophysics · Physics 2008-11-26 Peter Erwin , Linda S. Sparke

We study a sample of bar-like galaxies in the Illustris TNG100 simulation, in which almost the whole stellar component is in the form of a prolate spheroid. The sample is different from the late-type barred galaxies studied before. In…

Astrophysics of Galaxies · Physics 2021-03-24 Ewa L. Lokas

Spiral galaxies are common in the local Universe, but their formation, evolution, and interplay with bars remain poorly understood. We use a sample of 391 nearby galaxies from the S$^4$G survey to characterise the winding angle and…

Astrophysics of Galaxies · Physics 2019-10-30 Simón Díaz-García , Heikki Salo , Johan H. Knapen , Martín Herrera-Endoqui

We present results from an imaging survey of an unbiased sample of thirty-eight early-type (S0--Sa), low-inclination, optically barred galaxies in the field. Our goal was to find and characterize central stellar and gaseous structures:…

Astrophysics · Physics 2008-11-26 Peter Erwin , Linda S. Sparke

The star formation rates (SFRs) and metallicities of a sample of 294 galaxies with visually classified, strong, large-scale bars are compared to a control sample of unbarred disk galaxies selected from the Sloan Digital Sky Survey Data…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Sara L. Ellison , Preethi Nair , David R. Patton , Jillian M. Scudder , J. Trevor Mendel , Luc Simard

We present a study of bar and host disk evolution in a dense cluster environment, based on a sample of ~800 bright (MV <= -18) galaxies in the Abell 901/2 supercluster at z~0.165. We use HST ACS F606W imaging from the STAGES survey, and…

In dense clusters, higher densities at early epochs as well as physical processes, such as ram pressure stripping and tidal interactions become important, and can have direct consequences for the evolution of bars and their host disks. To…

Using data from the Near-Infrared S0 Survey (NIRS0S) of nearby, early-type galaxies, we examine the distribution of bar strengths in S0 galaxies as compared to S0/a and Sa galaxies, and as compared to previously published bar strength data…

Astrophysics of Galaxies · Physics 2015-05-19 R. Buta , E. Laurikainen , H. Salo , J. Knapen

We present a study of the environment of barred galaxies using a volume-limited sample of over 30,000 galaxies drawn from the Sloan Digital Sky Survey. We use four different statistics to quantify the environment: the projected two-point…

Astrophysics of Galaxies · Physics 2015-06-19 Ye Lin , Bernardo Cervantes Sodi , Cheng Li , Lixin Wang , Enci Wang

We perform controlled N-body simulations of disc galaxies growing within live dark matter (DM) haloes to present-day galaxies that contain both thin and thick discs. We consider two types of models: a) thick-disc initial conditions to which…

Astrophysics of Galaxies · Physics 2017-06-14 Michael Aumer , James Binney

We investigate the properties of bright (MV <= -18) barred and unbarred disks in the Abell 901/902 cluster system at z~0.165 with the STAGES HST ACS survey. To identify and characterize bars, we use ellipse-fitting. We use visual…

Past studies have long emphasised the key role played by galactic stellar bars in the context of disc secular evolution, via the redistribution of gas and stars, the triggering of star formation, and the formation of prominent structures…