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The MUSE TIMER Survey has obtained high signal and high spatial resolution integral-field spectroscopy data of the inner $\sim6\times6$ kpc of 21 nearby massive disc galaxies. This allows studies of the stellar kinematics of the central…

Astrophysics of Galaxies · Physics 2020-05-20 Dimitri A. Gadotti , Adrian Bittner , Jesus Falcón-Barroso , Jairo Méndez-Abreu , the TIMER team

We study the morphologies of 3,964 galaxies and their progenitors with $M_\star > 10^{10} M_\odot$ in the reference EAGLE hydrodynamical simulation from redshifts $z=1$ to $z=0$, concentrating on the redshift evolution of the bar fraction.…

Astrophysics of Galaxies · Physics 2023-02-13 Mitchell K. Cavanagh , Kenji Bekki , Brent A. Groves , Joel Pfeffer

We present a universal linear correlation between the stellar mass and surface brightness (SB) of galaxies at 0.3<z<3, using a deep K-band selected catalog in the GOODS-North region. The correlation has a nearly constant slope, independent…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Takashi Ichikawa , Masaru Kajisawa , Toru Yamada , Masayuki Akiyama , Tomohiro Yoshikawa , Masato Onodera , Masahiro Konishi

When galactic discs settle and become massive enough, they are able to form stellar bars. These non-axisymmetric structures induce shocks in the gas, causing it to flow to the centre where nuclear structures, such as nuclear discs and…

We study the properties of two bars formed in fully cosmological hydrodynamical simulations of the formation of Milky Way-mass galaxies. In one case, the bar formed in a system with disc, bulge and halo components and is relatively strong…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Cecilia Scannapieco , Evangelia Athanassoula

We present our recent results on the properties of the outskirts of disk galaxies. In particular, we focus on spiral galaxies with stellar disk truncations in their radial surface brightness profiles. Using SDSS, UDF and GOODS data we show…

Astrophysics of Galaxies · Physics 2010-02-08 J. Bakos , I. Trujillo , R. Azzollini , J. E. Beckman , M. Pohlen

We have obtained structural parameters of about 340,000 galaxies from the Kilo Degree Survey (KiDS) in 153 square degrees of data release 1, 2 and 3. We have performed a seeing convolved 2D single S\'ersic fit to the galaxy images in the 4…

As part of a stellar population sampling program, a series of photometric probes at various field sizes and depths have been obtained in a low extinction window in the galactic anticentre direction. Very deep CCD frames probe the most…

Astrophysics · Physics 2007-05-23 Annie C. Robin , Michel Creze , Vijay Mohan

Context. Galactic structure studies can be used as a path to constrain the scenario of formation and evolution of our Galaxy. The dependence with the age of stellar population parameters would be linked with the history of star formation…

Astrophysics of Galaxies · Physics 2017-06-14 E. B. Amores , A. C. Robin , C. Reyle

In the absence of an interaction, central bars might be the most effective mechanism for radial motions of gas in barred spiral galaxies, which represent two-thirds of disc galaxies. The dynamical effects induced by bars in the first few…

Astrophysics of Galaxies · Physics 2013-12-20 O. Cavichia , M. Mollá , R. D. D. Costa , W. J. Maciel

We explore the growth and the evolution of the bar instability in stellar-gaseous disks embedded in a suitable dark matter halo evolving in a fully consistent cosmological framework. The aim of this paper is to point out the impact of…

Astrophysics · Physics 2009-11-13 A. Curir , P. Mazzei , G. Murante

To investigate the role of bars in the chemical evolution of isolated disc galaxies, we performed a series of 39 gas dynamical simulations of isolated barred and unbarred galaxies with various masses, initial gas fractions, and AGN feedback…

Astrophysics of Galaxies · Physics 2018-05-02 Hugo Martel , Christian Carles , Fidèle Robichaud , Sara L. Ellison , David J. Williamson

Stellar populations in barred galaxies save an imprint of the influence of the bar on the host galaxy's evolution. We present a detailed analysis of star formation histories (SFHs) and chemical enrichment of stellar populations in nine…

In this work we analyse the structural and photometric properties of 21 barred simulated galaxies from the Auriga Project. These consist of Milky Way-mass magneto-hydrodynamical simulations in a $\Lambda$CDM cosmological context. In order…

We investigate the stellar masses of strongly barred spiral galaxies. Our analysis is based on a sample of ~14000 visually-classified nearby galaxies given in Nair & Abraham 2010(a). The fraction of barred spiral galaxies is found to be a…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Preethi B. Nair , Roberto G. Abraham

We combine deep optical and IR photometry for 326 spiral galaxies from two recent galaxy samples and report that the surface brightness profiles of late-type spirals are best fit by two exponentials. Moreover, the ratio of bulge and disk…

Astrophysics · Physics 2009-10-28 S. Courteau , R. S. de Jong , A. H. Broeils

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 have analyzed the radial scales, central surface brightnesses, and colors of 404 disks of various types of galaxies. The central surface brightness mu0 and linear disk scale length h vary smoothly along the Hubble sequence of galaxies…

Cosmology and Nongalactic Astrophysics · Physics 2013-04-04 Alexander S. Gusev , Svetlana A. Guslyakova , Maria S. Khramtsova

We present an analysis of V-band radial surface brightness profiles for spiral galaxies from the field and cluster environments using Hubble Space Telescope/Advanced Camera for Surveys imaging and data from the Space Telescope A901/2 Galaxy…

The classical picture for the formation of stellar bars -- key dynamical drivers of the evolution of galaxies -- is through secular evolution of instability in gas poor, stellar-dominated disks. The detection with the James Webb Space…

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