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We present new (B,I) photometry for the globular cluster systems in eight Brightest Cluster Galaxies (BCGs), obtained with the ACS/WFC camera on the Hubble Space Telescope. In the very rich cluster systems that reside within these giant…

天体物理学 · 物理学 2009-11-13 W. E. Harris , B. C. Whitmore , D. Karakla , W. Okon , W. A. Baum , D. A. Hanes , J. J. Kavelaars

Bivariate luminosity functions (LFs) are computed for galaxies in the New York Value-Added Galaxy Catalogue, based on the Sloan Digital Sky Survey Data Release 4. The galaxy properties investigated are the morphological type, inverse…

天体物理学 · 物理学 2009-11-11 Nicholas M Ball , Jon Loveday , Robert J Brunner , Ivan K Baldry , Jon Brinkmann

Hubble Space Telescope (HST) imaging of four rich, X-ray luminous, galaxy clusters (0.33<z<0.83) is used to produce quantitative morphological measurements for galaxies in their fields. Catalogs of these measurements are presented for 1642…

天体物理学 · 物理学 2009-11-10 Amelie Saintonge , David Schade , Erica Ellingson , Howard K. C. Yee , Raymond G. Carlberg

Intrinsic color profiles of a sample of nine Brightest Cluster Galaxies (BCGs) are recovered from the observed color profiles by evaluating spurious gradients introduced by errors in the determination of the sky levels and by different…

天体物理学 · 物理学 2008-02-03 S. Andreon , B. Garilli , D. Maccagni

We use the rotation curves of more than 100 disk galaxies to examine whether the structure of their surrounding dark halos is consistent with the universal density profile proposed by Navarro, Frenk & White (NFW profiles). Rotation curve…

天体物理学 · 物理学 2007-05-23 Julio F. Navarro

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

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

We present near-infrared H-band (1.65 micron) surface brightness profile decomposition for 1157 galaxies in five nearby clusters of galaxies: Coma, A1367, Virgo, A262 and Cancer, and in the bridge between Coma and A1367 in the "Great Wall".…

天体物理学 · 物理学 2007-05-23 G. Gavazzi , P. Franzetti , M. Scodeggio , A. Boselli , D. Pierini

Using the catalog of O'Neil, Bothun, & Schombert (1999), we examine the central surface brightness distribution (phi(mu_B(0))) of galaxies in the 22.0 < mu_B(0) < 25.0 mag arcsec^{-2} range. Taking advantage of having a catalog in which…

天体物理学 · 物理学 2007-05-23 K. O'Neil , G. Bothun

We present azimuthally averaged radial profiles of R-band surface brightness for a complete sample of 47 early-type, unbarred galaxies, as a complement to our previous study of early-type barred galaxies. Following very careful sky…

宇宙学与河外天体物理 · 物理学 2015-05-30 Leonel Gutierrez , Peter Erwin , Rebeca Aladro , John E. Beckman

We present the rotation velocities V and velocity dispersions sigma along the principal axes of seven elliptical galaxies less luminous than M_B= -19.5. These kinematics extend beyond the half-light radii for all systems in this…

天体物理学 · 物理学 2009-10-31 Hans-Walter Rix , Marcella Carollo , Ken Freeman

We revisit the bimodal distribution of the galaxy population commonly seen in the local universe. Here we address the bimodality observed in galaxy properties in terms of spectral synthesis products, such as mean stellar ages and stellar…

We present the properties of a large sample (12,282) of nearly face-on low surface brightness (LSB) disk galaxies selected from the main galaxy sample of SDSS-DR4. These properties include B-band central surface brightness mu_0(B), scale…

天体物理学 · 物理学 2015-05-13 G. H. Zhong , Y. C. Liang , F. S. Liu , F. Hammer , J. Y. Hu , X. Y. Chen , L. C. Deng , B. Zhang

We measured the K-band luminosity function using a complete sample of 4192 morphologically-typed 2MASS galaxies with 7 < K < 11.25 mag spread over 2.12 str. Early-type (T < -0.5) and late-type (T > -0.5) galaxies have similarly shaped…

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…

宇宙学与河外天体物理 · 物理学 2013-04-04 Alexander S. Gusev , Svetlana A. Guslyakova , Maria S. Khramtsova

To study the disc central surface brightness ($\mu_0$) distribution in optical and near-infrared bands, we select 708 disc-dominated galaxies within a fixed distance of 57 Mpc from SDSS DR7 and UKIDSS DR10. Then we fit $\mu_0$ distribution…

星系天体物理 · 物理学 2019-01-30 L. Zhou , W. Du , H. Wu , Y. C. Liang , M. He , P. S. Zhao , L. C. Deng , W. B. Shi , Y. H. Wang

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 present an analysis of the globular cluster systems of 28 elliptical galaxies using archival WFPC2 images in the V and I-bands. The V-I color distributions of at least 50% of the galaxies appear to be bimodal {\it at the present level of…

天体物理学 · 物理学 2008-11-26 Arunav Kundu , Brad Whitmore

This is the first of a series of papers devoted to the investigation of a large sample of brightest cluster galaxies (BCGs), their kinematic and stellar population properties, and the relationships between those and the properties of the…

天体物理学 · 物理学 2009-11-13 S. I. Loubser , A. E. Sansom , P. Sanchez-Blazquez , I. K. Soechting , G. E. Bromage

We investigated the properties of the stellar populations in the discs of a sample of ten spiral galaxies. Our analysis focused on the galaxy region where the disc contributes more than 95 per cent of total surface brightness in order to…

星系天体物理 · 物理学 2015-08-06 L. Morelli , E. M. Corsini , A. Pizzella , E. Dalla Bontà , L. Coccato , J. Méndez-Abreu