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相关论文: Photometric deprojection of edge-on galaxies

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We present results of surface photometry for eleven edge-on galaxies observed with the 6-m telescope at the Special Astrophysical Observatory of the Russian Academy of Sciences. The photometric scale length, the scale height, and the…

天体物理学 · 物理学 2007-05-23 Dmitry Bizyaev , Serafim Kajsin

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…

天体物理学 · 物理学 2009-11-07 Dmitry Bizyaev , Sofija Mitronova

To understand the origin of extended disks of low-surface brightness (LSB) galaxies, we studied in detail 4 such systems with large disks seen edge-on. Two of them are edge-on giant LSB galaxies (gLSBGs) recently identified by our team. The…

Photometric parameters of stellar disks and bulges for several edge-on galaxies from the Catalog of Flat Galaxies (FGC) were determined. We discuss a difference between photometric parameters of LSB and HSB galaxies from our sample. Also we…

天体物理学 · 物理学 2007-05-23 D. V. Bizyaev

Low-surface-brightness galaxies(LSBGs) are defined as galaxies that are fainter than dark night sky and are important for studying our universe. Particularly, edge-on galaxies are useful for the study of rotational velocity and dynamical…

星系天体物理 · 物理学 2020-06-23 Min He , Hong Wu , Wei Du , He-yang Liu , Feng-jie Lei , Pin-song Zhao , Bing-qing Zhang

We present surface photometry results for a sample of eleven edge-on galaxies observed with the 6m telescope at the Special Astrophysical Observatory (Russia). The photometric scale length, scale height, and central surface brightness of…

天体物理学 · 物理学 2009-11-10 Dmitry Bizyaev , Serafim Kajsin

An algorithm is developed and tested for the problem posed by photometric observations of the bulge of the Milky Way. The latter subtends a non-trivial solid angle on the sky, and we show that this permits inversion of the projected…

天体物理学 · 物理学 2015-06-24 James Binney , Ortwin Gerhard

Axisymmetric density distributions are constructed which are invisible when viewed from a range of inclination angles $i$. By adding such distributions to a model galaxy, it can be made either disky or boxy without in any way affecting its…

天体物理学 · 物理学 2015-06-24 Ortwin Gerhard , James Binney

The presence of dust in spiral galaxies affects the ability of photometric decompositions to retrieve the parameters of their main structural components. For galaxies in an edge-on orientation, the optical depth integrated over the…

We present a study of low surface brightness galaxies (LSBGs) selected by fitting the images for all the galaxies in $\alpha$.40 SDSS DR7 sample with two kinds of single-component models and two kinds of two-component models (disk+bulge):…

星系天体物理 · 物理学 2023-12-14 Bing-qing Zhang , Hong Wu , Wei Du , Pin-song Zhao , Min He , Feng-jie Lei

The observations of external galaxies are projected to the 2D sky plane. Reconstructing the 3D intrinsic density distribution of a galaxy from the 2D image is challenging, especially for barred galaxies, but is a critical step for…

星系天体物理 · 物理学 2021-10-22 Behzad Tahmasebzadeh , Ling Zhu , Juntai Shen , Ortwin Gerhard , Yujing Qin

The connection between the bulge mass or bulge luminosity in disk galaxies and the number, spatial and phase space distribution of associated dwarf galaxies is a discriminator between cosmological simulations related to galaxy formation in…

星系天体物理 · 物理学 2017-07-05 C. Henkel , B. Javanmardi , D. Martinez-Delgado , P. Kroupa , R. Teuwen

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…

宇宙学与河外天体物理 · 物理学 2015-05-14 A. V. Mosenkov , N. Ya. Sotnikova , V. P. Reshetnikov

We present photometrically calibrated images and surface photometry in the B, V, R, J, H, and K-bands of 25, and in the g, r, and K-bands of 5 nearby bright (Bo_T<12.5 mag) spiral galaxies with inclinations between 30-65 degrees spanning…

天体物理学 · 物理学 2009-11-11 Susan A. Kassin , Roelof S. de Jong , Richard W. Pogge

We present optical (B & R) and infrared (K_s) images and photometry for a sample of 49 extremely late-type, edge-on disk galaxies selected from the Flat Galaxy Catalog of Karenchentsev et al. (1993). Our sample was selected to include…

天体物理学 · 物理学 2009-10-31 Julianne J. Dalcanton , Rebecca A. Bernstein

We present Johnson B surface photometry for the UCM Survey galaxies. One-dimensional bulge-disk decomposition is attempted, discussing on fitting functions and computational procedures. The results from this decomposition, jointly with…

天体物理学 · 物理学 2009-10-31 P. G. Perez-Gonzalez , J. Gallego , J. Zamorano , A. Gil de Paz

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…

天体物理学 · 物理学 2008-11-26 E. Noordermeer , J. M. van der Hulst

We present galaxy-galaxy lensing measurements using a sample of low surface brightness galaxies (LSBGs) drawn from the Dark Energy Survey Year 3 (Y3) data as lenses. LSBGs are diffuse galaxies with a surface brightness dimmer than the…

We present a non-parametric method for decomposition of the light of disk galaxies into disk, bulge and bar components. We have developed and tested the method on a sample of 68 disk galaxies for which we have acquired I-band photometry.…

天体物理学 · 物理学 2008-11-26 A. S. Reese , T. B. Williams , J. A. Sellwood , Eric I. Barnes , Brian A. Powell

A large sample of low surface brightness (LSB) disk galaxies is selected from SDSS with B-band central surface brightness mu_0(B) from 22 to 24.5 mag arcsec^(-2). Some of their properties are studied, such as magnitudes, surface brightness,…

宇宙学与河外天体物理 · 物理学 2015-05-14 Y. C. Liang , G. H. Zhong , X. Y. Chen , D. Gao , F. Hammer , F. S. Liu , J. Y. Hu , L. C. Deng , B. Zhang
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