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相关论文: Color Correlations in (S+S) Binary Galaxies I. The…

200 篇论文

We have investigated the Holmberg effect of Main galaxy pairs of the SDSS Data Release 4 (SDSS4). It is found that except i-z color the color indices between the two components of Main galaxy pairs clearly have significantly larger…

天体物理学 · 物理学 2007-05-23 Deng Xin-Fa , Ma Xin-Sheng , He Con-Gen , Luo Cheng-Hong , He Ji-Zhou

We present multicolour broad band ($BVRI$) photometry for a sample of 33 spiral-spiral (S+S) binary galaxies drawn from the Karachentsev Catalogue of Isolated Pairs of Galaxies (KPG). The data is part of a joint observational programme…

天体物理学 · 物理学 2009-11-07 H. M. Hernandez-Toledo , I. Puerari

We report the first results of our multicolour broad-band BVRI photometry for a statistically well defined sample of interacting pairs, drawn from the Catalogue of Isolated Pairs of Galaxies in the Northern Hemisphere Karachentsev (1972).…

天体物理学 · 物理学 2007-05-23 Hector Hernandez Toledo , Ivânio Puerari

A collection of Johnson/Cousins photometry for stars with known [Fe/H] is used to generate color-color relations that include the abundance dependence. Literature temperature and bolometric correction dependences are attached to the color…

天体物理学 · 物理学 2011-01-27 G. Worthey , H. -c. Lee

We discuss spectroscopy and infrared photometry for a complete sample of ~ 800 galaxies in close pairs objectively selected from the CfA2 redshift survey. We use 2MASS to compare near infrared color-color diagrams for our sample with the…

We present a new catalog of merging galaxies obtained through an automated systematic search routine. The 1479 new pairs of merging galaxies were found in approximately 462 sq deg of the Sloan Digital Sky Survey Early Data Release (SDSS…

天体物理学 · 物理学 2009-11-10 S. S. Allam , D. L. Tucker , J. A. Smith , B. C. Lee , J. Annis , H. Lin , I. Karachentsev , B. E. Laubscher

Broadband colours are often used as metallicity proxies in the study of extragalactic globular clusters. A common concern is the effect of variations in horizontal branch (HB) morphology--the second-parameter effect--on such colours. We…

天体物理学 · 物理学 2009-11-13 Graeme H. Smith , Jay Strader

We perform an statistical analysis of galaxies in pairs in a Lambda-CDM scenario by using the chemical GADGET-2 of Scannapieco et al. (2005) in order to study the effects of galaxy interactions on colours and metallicities. We find that…

In a hierarchical universe, mergers may be an important mechanism not only in increasing the mass of galaxies but also in driving the color and morphological evolution of galaxies. We use a large sample of ~1000 simulated galaxies of…

宇宙学与河外天体物理 · 物理学 2015-06-03 Stephanie Tonnesen , Renyue Cen

This paper presents new and synthetic narrow band photometry of ellipticals, spirals, Seyferts and interacting galaxies in an attempt to identify the cause of the unusually high fraction of blue cluster galaxies in distant clusters…

天体物理学 · 物理学 2009-10-28 Karl Rakos , Thomas Maindl , James Schombert

We have assembled a large, high quality catalogue of galaxy colours from the Sloan Digital Sky Survey Data Release 7, and have identified 21,347 galaxies in pairs spanning a range of projected separations (r_p < 80 h_{70}^{-1} kpc),…

宇宙学与河外天体物理 · 物理学 2015-05-20 David R. Patton , Sara L. Ellison , Luc Simard , Alan W. McConnachie , J. Trevor Mendel

(Abriged) A new grid of theoretical color indices for the Stromgren uvby photometric system has been derived from MARCS model atmospheres and SSG synthetic spectra for cool dwarf and giant stars. At warmer temperatures this grid has been…

天体物理学 · 物理学 2009-11-10 J. L. Clem , D. A. VandenBerg , F. Grundahl , R. A. Bell

In this second paper dedicated to the study of satellite galaxies we present broad-band photometry in the B, V, R and I filters of 49 satellite galaxies orbiting giant isolated spiral galaxies. First analysis of the properties of these…

天体物理学 · 物理学 2009-11-10 C. M. Gutierrez , M. Azzaro

We compare the structural properties of two classes of galaxies at intermediate redshift: those in dynamically close galaxy pairs, and those which are isolated. Both samples are selected from the CNOC2 Redshift Survey, and have redshifts in…

天体物理学 · 物理学 2008-11-26 D. R. Patton , J. K. Grant , L. Simard , C. J. Pritchet , R. G. Carlberg , K. D. Borne

We report the first results of a long term program aimed at investigating the photometric properties of the cores of Abell and X-ray selected (EMSS, \cite{emss}) clusters of galaxies. We observed 77 clusters of galaxies in the redshift…

天体物理学 · 物理学 2007-05-23 Bianca Garilli , Dario Bottini , Dario Maccagni , Luis Carrasco , Elsa Recillas

The images provided by the Advanced Camera for Surveys at the Hubble Space Telescope (ACS/HST) have the amazing spacial resolution of 0".05/pixel. Therefore, it is possible to resolve individual stars in nearby galaxies and, in particular,…

星系天体物理 · 物理学 2019-03-27 C. Feinstein , G. Baume , J. Rodriguez , M. Vergne

We present a photometric and structural analysis of 42 E/S0 galaxies in (E/S0 + S) pairs observed in the BVRI color bands. We empirically determine the effects of interactions on their morphology, structure and stellar populations as seen…

天体物理学 · 物理学 2008-11-26 H. Hernandez-Toledo , V. Avila-Reese , J. R. Salazar-Contreras , C. J. Conselice

We present a new method of utilizing the color and asymmetry values for galaxies in the Hubble Deep Field to determine both their morphological features and physical parameters. By using a color-asymmetry diagram, we show that various types…

天体物理学 · 物理学 2009-10-31 Christopher J. Conselice , Matthew A. Bershady

We present gri CCD photometry of 44 Abell clusters and 4 cluster candidates. Twenty one clusters in our sample have spectroscopic redshifts. Fitting a relation between mean g, r and i magnitudes, and redshift for this subsample, we have…

天体物理学 · 物理学 2009-10-31 V. E. Margoniner , R. R. de Carvalho

We present Herschel PACS $\&$ SPIRE far-infrared (FIR) and sub-mm imaging observations for a large K-band selected sample of 88 close major-merger pairs of galaxies (H-KPAIRs) in 6 photometric bands (70, 100, 160, 250, 350, and 500 $\mu…

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