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Related papers: Structural Parameters of Stellar Disks from 2MASS …

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We analyze the J, H, and Ks 2MASS images of 140 late-type edge-on galaxies selected from the RFGC catalog (which contains flat galaxies with major-to-minor axis ratio a/b > 7). The NIR scalelengths (h) and scaleheights (z0) of the stellar…

Astrophysics · Physics 2007-05-23 S. Mitronova , D. Bizyaev

To analyze the vertical structure of edge-on galaxies, we have used images of a large uniform sample of flat galaxies that have been taken during the 2MASS all-sky survey. The photometric parameters, such as the radial scale length, the…

Astrophysics · Physics 2009-11-07 Dmitry Bizyaev , Sofija Mitronova

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

We analyze the global structure of 34 late-type, edge-on, undisturbed, disk galaxies spanning a wide range of mass. We measure structural parameters for the galaxies using two-dimensional least-squares fitting to our $R$-band photometry.…

Astrophysics · Physics 2008-11-26 Peter Yoachim , Julianne J. Dalcanton

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 mass distributions obtained from near-infrared (NIR) surface brightness decompositions and rotation curve fitting of a sample of early-type spiral galaxies. Bulge and disk mass-to-light (M/L) ratios, dark halo parameters, and the…

Astrophysics · Physics 2007-05-23 Giovanni Moriondo , Carlo Giovanardi , Leslie K. Hunt

We present the results of an analysis of Pan-STARRS1 Medium Deep Survey multi-band (g,r,i,z,y) images of a sample of 698 low-redshift disk galaxies that span broad ranges in stellar mass, star-formation rate, and bulge/disk ratio. We use…

The Ks band differential star count of the Two Micron All Sky Survey (2MASS) is used to derive the global structure parameters of the smooth components of the Milky Way. To avoid complication introduced by other fine structures and…

Astrophysics of Galaxies · Physics 2015-05-28 Chan-Kao Chang , Chung-Ming Ko , Ting-Hung Peng

We perform near-infrared photometry of a large sample of 49 superthin edge-on galaxies. These galaxies are selected based on optical photometry because of high radial-to-vertical scale ratio in their stellar disks. The Near Infrared (NIR) H…

Astrophysics of Galaxies · Physics 2020-06-03 D. Bizyaev , A. M. Tatarnikov , N. I. Shatsky , A. E. Nadjip , M. A. Burlak , O. V. Vozyakova

Infrared photometry in the J (1.2 microns), H (1.7 microns), Ks (2.2 microns) bands from the 2MASS catalogue and in the W1 (3.4 microns), W2 (4.6 microns), W3 (12 microns), W4 (22 microns) bands from the WISE catalogue is used to reveal the…

Astrophysics of Galaxies · Physics 2019-10-25 George Gontcharov

We study the correlations with inclination of H-band disk and bulge structural parameters and I-H colour profiles for a sample of 154 spiral galaxies, in order to detect possible effects due to internal extinction by dust. The selection of…

Astrophysics · Physics 2007-05-23 G. Moriondo , R. Giovanelli , M. P. Haynes

Radial and vertical profiles are determined for a sample of 34 edge-on disk galaxies in the HDFs, selected for their apparent diameter larger than 1.3 arcsec and their unperturbed morphology. The thickness and flatness of their galactic…

Astrophysics · Physics 2009-11-07 V. P. Reshetnikov , R. -J. Dettmar , F. Combes

The DiskMass survey recently provided measurements of the vertical velocity dispersions of disk stars in a sample of nearly face-on galaxies. By setting the disk scale-heights to be equal to those of edge-on galaxies with similar…

Astrophysics of Galaxies · Physics 2015-12-16 Garry W. Angus , Gianfranco Gentile , Benoit Famaey

We consider a thickness of stellar disks of late-type galaxies by analyzing the R and K_s band photometric profiles for two independent samples of edge-on galaxies. The main goal is to verify a hypotesis that a thickness of old stellar…

Astrophysics · Physics 2009-11-07 A. V. Zasov , D. V. Bizyaev , D. I. Makarov , N. V. Tyurina

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…

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

The non-linear dynamics of bending instability and vertical structure of a galactic stellar disc embedded into a spherical halo are studied with N-body numerical modelling. Development of the bending instability in stellar galactic disc is…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 A. Khoperskov , D. Bizyaev , N. Tiurina , M. Butenko

We have determined interstellar extinction law toward the Galactic center (GC) at the wavelength from 1.2 to 8.0 micron, using point sources detected in the IRSF/SIRIUS near-infrared survey and those in the 2MASS and Spitzer/IRAC/GLIMPSE II…

Astrophysics of Galaxies · Physics 2011-02-11 Shogo Nishiyama , Motohide Tamura , Hirofumi Hatano , Daisuke Kato , Toshihiko Tanabe , Koji Sugitani , Tetsuya Nagata

A statistical study of global galaxy parameters can help to improve our understanding of galaxy formation processes. In this paper we present the analysis of global galaxy parameters based on optical and near-infrared observations of a…

Astrophysics · Physics 2009-10-30 R. de Grijs

We present stellar mass surface density profiles of a mass-selected sample of 177 galaxies at 0.5 < z < 2.5, obtained using very deep HST optical and near-infrared data over the GOODS-South field, including recent CANDELS data. Accurate…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Daniel Szomoru , Marijn Franx , Pieter G. van Dokkum , Michele Trenti , Garth D. Illingworth , Ivo Labbe , Pascal Oesch
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