中文
相关论文

相关论文: Are Low Surface Brightness Discs Young?

200 篇论文

(Abridged). Low metallicities, large gas-to-star mass ratios, and blue colors of most low surface brightness (LSB) galaxies imply that these systems may be younger than their high surface brightness counterparts. We seek to find…

宇宙学与河外天体物理 · 物理学 2015-05-13 E. I. Vorobyov , Yu. Shchekinov , D. Bizyaev , D. Bomans , R. -J. Dettmar , ;

We investigate the star formation history and chemical evolution of low surface brightness (LSB) disk galaxies by modelling their observed spectro-photometric and chemical properties using a galactic chemical and photometric evolution model…

天体物理学 · 物理学 2007-05-23 L. B. van den Hoek , W. J. G. de Blok , J. M. van der Hulst , T. de Jong , .

We present $UBVI$ and H$\alpha$ images of a sample of Low Surface Brightness (LSB) disk galaxies. These galaxies are generally late types, if they can be sensibly classified at all. However, they are not dwarfs, being intrinsically large…

天体物理学 · 物理学 2016-08-30 Stacy McGaugh , Jim Schombert , Greg Bothun

We present UBVI surface photometry of a sample of low surface brightness (LSB) disk galaxies. LSB disk galaxies are fairly well described as exponential disks with no preferred value for either scale length, central surface brightness, or…

天体物理学 · 物理学 2009-10-22 Stacy McGaugh , Greg Bothun

Surface photometry at 3.6$\mu$m is presented for 61 low surface brightness (LSB) galaxies ($\mu_o < 19$ 3.6$\mu$m mag arcsecs$^{-2}$). The sample covers a range of luminosity from $-$11 to $-$22 in $M_{3.6}$ and size from 1 to 25 kpc. The…

星系天体物理 · 物理学 2015-06-18 James Schombert , Stacy McGaugh

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…

The disk masses of four low surface brightness galaxies (LSB) were estimated using marginal gravitational stability criterion and the stellar velocity dispersion data which were taken from Pizzella et al., 2008 [1]. The constructed mass…

宇宙学与河外天体物理 · 物理学 2015-05-19 A. S. Saburova

We have derived oxygen and nitrogen abundances of a sample of late-type, low surface brightness (LSB) galaxies found in the Sloan Digital Sky Survey (SDSS). Furthermore, we have computed a large grid (5000 models) of chemical evolution…

天体物理学 · 物理学 2007-12-04 Lars Mattsson , Brady Caldwell , Nils Bergvall

Giant low surface brightness galaxies (GLSBs) have flat discs extending up to ~100 kpc. Their formation is a puzzle for cosmological simulations in the cold dark matter scenario. We suggest that GLSBs might be the final product of the…

天体物理学 · 物理学 2008-09-01 M. Mapelli , B. Moore , E. Ripamonti , L. Giordano , L. Mayer , M. Colpi , S. Callegari

To investigate the structure and composition of the dusty interstellar medium (ISM) of low surface brightness (LSB) disk galaxies, we have used multiwavelength photometry to construct spectral energy distributions for three low-mass,…

宇宙学与河外天体物理 · 物理学 2015-05-30 John M. MacLachlan , Lynn D. Matthews , Kenneth Wood , John S. Gallagher

Low surface brightness (LSB) galaxies make up a significant fraction of the luminosity density of the local universe. Their low surface brightness suggests a different formation and evolution process compared to more-typical…

We present N-body simulations of Low Surface Brightness (LSB) galaxies and their Interstellar Medium to investigate the cause for their low star formation rates (SFR).Due to their massive halos, stellar disks of LSB galaxies are very stable…

天体物理学 · 物理学 2007-05-23 Jeroen P. E. Gerritsen , W. J. G. de Blok

The rotation curves of low surface brightness (LSB) galaxies suggest that they possess significantly higher mass-to-light (M/L) ratios than their high surface brightness counterparts, indicating that LSB galaxies may be dark matter…

天体物理学 · 物理学 2009-11-10 Hyun-chul Lee , Brad K. Gibson , Chris Flynn , Daisuke Kawata , Michael A. Beasley

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 twenty years, low surface brightness (LSB) galaxies have evolved from being an idiosyncratic notion to being one of the major baryonic repositories in the Universe. The story of their discovery and the characterization of their…

天体物理学 · 物理学 2009-09-25 Greg Bothun , Chris Impey , Stacy McGaugh

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 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

Based on the results of recent surveys, we have constructed a relatively homogeneous set of observational data concerning the chemical and photometric properties of Low Surface Brightness galaxies (LSBs). We have compared the properties of…

天体物理学 · 物理学 2009-11-07 S. Boissier , D. Monnier Ragaigne , N. Prantzos , W. van Driel , C. Balkowski , K. O'Neil

We present results of broad band {BVRI} observations of a sample of galaxies with a low surface brightness (LSB) disk and a bulge. These galaxies are well described as exponential disks and exponential bulges with no preferred value for…

天体物理学 · 物理学 2007-05-23 M. Beijersbergen , W. J. G. de Blok , J. M. van der Hulst

We present Very Large Array ({\sc vla}) and Westerbork Synthesis Radio Telescope ({\sc wsrt}) 21-cm H{\sc i} observations of 19 late-type low surface brightness (LSB) galaxies. Our main findings are that these galaxies, as well as having…

天体物理学 · 物理学 2015-06-24 W. J. G. de Blok , S. S. McGaugh , J. M. van der Hulst
‹ 上一页 1 2 3 10 下一页 ›