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We analyse the surface brightness profiles of disc-type galaxies in the EAGLE simulations in order to investigate the effects of galaxy mass and environment on galaxy profile types. Following observational works, we classify the simulated…

Astrophysics of Galaxies · Physics 2021-10-27 Joel L. Pfeffer , Kenji Bekki , Duncan A. Forbes , Warrick J. Couch , Bärbel S. Koribalski

Breaks in the surface brightness profiles in the outer regions of galactic discs are thought to have formed by various internal and external processes, and by studying the breaks we aim to better understand what processes are responsible…

Astrophysics of Galaxies · Physics 2016-11-30 Jarkko Laine , Eija Laurikainen , Heikki Salo

Thanks to new advances in astronomical imaging, we can now routinely explore disk galaxy profiles about two magnitudes deeper than the data available 20 years ago. In this regard, it is an opportune time to reevaluate the past…

Astrophysics of Galaxies · Physics 2026-01-14 Samane Raji , Ignacio Trujillo , Fernando Buitrago , Giulia Golini , Ignacio Ruiz Cejudo

We study the surface brightness profiles of disc galaxies in the 3.6 micron images from the Spitzer Survey of Stellar Structure in Galaxies (S4G) and K_s-band images from the Near Infrared S0-Sa galaxy Survey (NIRS0S). We particularly…

We analyze the dependence of the stellar disc flatness on the galaxy morphological type using 2D decomposition of galaxies from the reliable subsample of the Edge-on Galaxies in SDSS (EGIS) catalogue. Combining these data with the retrieved…

Astrophysics of Galaxies · Physics 2015-05-14 A. V. Mosenkov , N. Ya. Sotnikova , V. P. Reshetnikov , D. V. Bizyaev , S. J. Kautsch

A simple algorithm is employed to deproject the two dimensional images of a pilot sample of 12 high-quality images of edge-on disk galaxies and to study their intrinsic 3 dimensional stellar distribution. We examine the radial profiles of…

Astrophysics · Physics 2008-11-26 M. Pohlen , S. Zaroubi , R. F. Peletier , R. -J. Dettmar

Breaks in the radial luminosity profiles of galaxies have been until now mostly studied averaged over discs. Here we study separately breaks in thin and thick discs in 70 edge-on galaxies using imaging from the Spitzer Survey of Stellar…

A sample of edge-on spiral galaxies aimed at a study of the main structural and photometric parameters of edge-on galaxies both of early and late types is presented. The data were taken from the 2MASS in the J, H and K_s filters. The sample…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 A. V. Mosenkov , N. Ya. Sotnikova , V. P. Reshetnikov

The [Ne II] fine-structure emission line at 12.8 micron has been detected in several young stellar objects (YSO) spectra. This line is thought to be produced by X-ray irradiation of the warm protoplanetary disk atmospheres, however the…

Solar and Stellar Astrophysics · Physics 2015-05-14 E. Schisano , B. Ercolano , M. Guedel

We present a sample of edge-on spiral galaxies both of early and late types.The sample consists of 175 galaxies in the Ks-filter, 169 galaxies in the H-filter and 165 galaxies in the J-filter. Bulge and disc decompositions of each galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2010-12-16 N. Ya. Sotnikova , V. P. Reshetnikov , A. V. Mosenkov

We present deep optical imaging of three face-on disk galaxies together with a detailed description of the reduction and calibration methods used, in order to measure the intrinsic shape of their outer stellar edges. Whereas it is now well…

Astrophysics · Physics 2007-05-23 M. Pohlen , R. -J. Dettmar , R. Luetticke , G. Aronica

We examine the relation between breaks in the surface brightness profiles and radial abundance gradients within the optical radius in the discs of 134 spiral galaxies from the CALIFA survey. The distribution of the radial abundance (in…

Astrophysics of Galaxies · Physics 2017-12-20 L. S. Pilyugin , E. K Grebel , I. A. Zinchenko , Y. A. Nefedyev , J. M. Vilchez

Aims: The physics driving features such as breaks observed in galaxy surface brightness (SB) profiles remains contentious. Here, we assess the importance of stellar radial motions in shaping their characteristics. Methods: We use the…

Astrophysics of Galaxies · Physics 2017-12-20 T. Ruiz-Lara , C. G. Few , E. Florido , B. K. Gibson , I. Pérez , P. Sánchez-Blázquez

We present deep B- and R-band surface photometry for a sample of 21 galaxies with morphological types between S0 and Sab. We present radial profiles of surface brightness, colour, ellipticity, position angle and deviations of axisymmetry…

Astrophysics · Physics 2008-11-26 E. Noordermeer , J. M. van der Hulst

Kn-band images, unsharp-masked images, as well as major-axis and vertically- summed surface brightness profiles are presented for 30 edge-on spiral galaxies, most with a boxy or peanut-shaped (B/PS) bulge. Such galaxies have more complex…

Astrophysics · Physics 2009-11-11 M. Bureau , G. Aronica , E. Athanassoula , R. -J. Dettmar , A. Bosma , K. C. Freeman

In earlier papers in this series we determined the intrinsic stellar disc kinematics of fifteen intermediate to late type edge-on spiral galaxies using a dynamical modeling technique. From the photometry we find that intrinsically more…

Astrophysics · Physics 2009-11-10 M. Kregel , P. C. van der Kruit , K. C. Freeman

(Abridged) A robust analysis of galaxy structural parameters, based on the modeling of bulge and disk brightnesses in the BVRH bandpasses, is presented for 121 face-on and moderately inclined late-type spirals. Each surface brightness (SB)…

Astrophysics · Physics 2010-04-06 Lauren A. MacArthur , Stephane Courteau , Jon A. Holtzman

The mechanism causing breaks in the radial surface brightness distribution of spiral galaxies is not yet well known. Despite theoretical efforts, there is not a unique explanation for these features and the observational results are not…

The radial profiles of the Hb, Mg, and Fe line-strength indices are presented for a sample of eight spiral galaxies with a low surface-brightness stellar disc and a bulge. The correlations between the central values of the line-strength…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 L. Morelli , E. M. Corsini , A. Pizzella , E. Dalla Bontà , L. Coccato , J. Méndez-Abreu , M. Cesetti
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