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We present long-slit optical spectra of 12 edge-on low surface brightness galaxies (LSBGs) positioned along their major axes. After performing reddening corrections for the emission-line fluxes measured from the extracted integrated…

星系天体物理 · 物理学 2017-03-22 Wei Du , Hong Wu , Yinan Zhu , Weikang Zheng , Alexei V. Filippenko

We study the spectroscopic properties of a large sample of Low Surface Brightness galaxies (LSBGs) (with B-band central surface brightness mu0(B)>22 mag arcsec^(-2)) selected from the Sloan Digital Sky Survey Data Release 4 (SDSS-DR4) main…

宇宙学与河外天体物理 · 物理学 2015-05-18 Y. C. Liang , G. H. Zhong , F. Hammer , X. Y. Chen , F. S. Liu , D. Gao , J. Y. Hu , L. C. Deng , B. Zhang

We have performed deep imaging of a diverse sample of 26 low surface brightness galaxies (LSBGs) in the optical and the near-infrared. Using stellar population synthesis models, we find that it is possible to place constraints on the ratio…

We select a large volume-limited sample of low surface brightness galaxies (LSBGs, 2,021) to investigate their statistical properties and their differences from high surface brightness galaxies (HSBGs, 3,639) in details. The distributions…

宇宙学与河外天体物理 · 物理学 2012-05-14 G. H. Zhong , Y. C. Liang , F. S. Liu , F. Hammer , K. Disseau , L. C. Deng

Near-infrared (NIR) K' images of a sample of five low surface brightness disc galaxies (LSBGs) were combined with optical data, with the aim of constraining their star formation histories. Both red and blue LSBGs were imaged to enable…

天体物理学 · 物理学 2009-10-31 E. F. Bell , R. G. Bower , R. S. de Jong , M. Hereld , B. J. Rauscher

We study the ages of a large sample (1,802) of nearly face-on disk low surface brightness galaxies (LSBGs) by using the evolutionary population synthesis (EPS) model PEGASE with exponential decreasing star formation rate to fit their…

宇宙学与河外天体物理 · 物理学 2015-05-19 Dong Gao , Yan-Chun Liang , Shun-Fang Liu , Guo-Hu Zhong , Xiao-Yan Chen , Yan-Bin Yang , Francois Hammer , Guo-Chao Yang , Li-Cai Deng , Jing-Yao Hu

In this work, we investigate the stellar metallicities of low surface brightness galaxies (LSBGs) and normal high surface brightness galaxies (HSBGs) in the IllustrisTNG100-1 simulation. LSBGs and HSBGs are classified as galaxies with mean…

星系天体物理 · 物理学 2024-03-26 Lin Tang

Panoramic spectroscopic data of the sample of 80 nearby lenticular galaxies obtained with the Multi-Pupil Fiber Spectrograph of the 6-m telescope are presented. The SSP-equivalent ages, [Z/H], and [Mg/Fe] are determined through the Lick…

天体物理学 · 物理学 2009-11-13 Olga K. Sil'chenko

We study the structural properties of Low Surface Brightness galaxies (LSB) using a sample of 263 galaxies observed by the Green Bank Telescope (Schneider et al 1992). We perform 2D decompositions of these galaxies in the SDSS $g$, $r$ and…

星系天体物理 · 物理学 2018-05-16 Isha Pahwa , Kanak Saha

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

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…

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…

宇宙学与河外天体物理 · 物理学 2015-06-04 L. Morelli , E. M. Corsini , A. Pizzella , E. Dalla Bontà , L. Coccato , J. Méndez-Abreu , M. Cesetti

Stellar population characteristics are presented for a sample of low luminosity early-type galaxies (LLEs) in order to compare them with their more luminous counterparts. Long-slit spectra of a sample of 10 LLEs were taken with the ESO New…

天体物理学 · 物理学 2009-11-13 A. E. Sansom , M. S. Northeast

We investigate the formation and properties of low surface brightness galaxies (LSBGs) with $M_{*} > 10^{9.5} \mathrm{M_{\odot}}$ in the EAGLE hydrodynamical cosmological simulation. Galaxy surface brightness depends on a combination of…

星系天体物理 · 物理学 2020-09-04 Andrea Kulier , Gaspar Galaz , Nelson D. Padilla , James W. Trayford

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 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…

Although low surface brightness galaxies (LSBs) contribute a large fraction to the number density of galaxies, their properties are still poorly known. LSBs are often considered dust poor, based only on a few studies. We use, for the first…

We present line-strengths and kinematics from the central regions of 32 galaxies with Hubble types ranging from E to Sbc. Spectral indices, based on the Lick system, are measured in the optical and near infra-red (NIR). The 24 indices…

天体物理学 · 物理学 2008-11-26 R. N. Proctor , A. E. Sansom

(Abridged) We present results for J and Ks near-IR imaging data on a large sample of 88 galaxies drawn from the catalogue of Impey et al. (1996). The near-IR data unveils many features of LSBGs not seen before in the optical. First, a high…

天体物理学 · 物理学 2009-11-07 Gaspar Galaz , Julianne Dalcanton , Leopoldo Infante , Ezequiel Treister

We examine the infrared properties of five low surface brightness galaxies (LSBGs) and compare them with related but higher surface brightness galaxies, using Spitzer Space Telescope images and spectra. All the LSBGs are detected in the 3.6…

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