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200 papers

We present a measurement of the Hubble constant $H_0$ from surface brightness fluctuation (SBF) distances for 63 bright, mainly early-type galaxies out to 100 Mpc observed with the Wide Field Camera 3 Infrared Channel (WFC3/IR) on the…

Cosmology and Nongalactic Astrophysics · Physics 2021-04-27 John P. Blakeslee , Joseph B. Jensen , Chung-Pei Ma , Peter A. Milne , Jenny E. Greene

Observations of 170 local ($z\lesssim0.08$) galaxy clusters in the northern hemisphere have been obtained with the Wendelstein Telescope Wide Field Imager (WWFI). We correct for systematic effects such as point-spread function broadening,…

Astrophysics of Galaxies · Physics 2020-11-30 M. Kluge , B. Neureiter , A. Riffeser , R. Bender , C. Goessl , U. Hopp , M. Schmidt , C. Ries , N. Brosch

We study a sample of 39 massive early-type lens galaxies at redshift z < 0.3 to determine the slope of the average dark-matter density profile in the innermost regions. We keep the strong lensing and stellar population synthesis modeling as…

Cosmology and Nongalactic Astrophysics · Physics 2012-02-20 C. Grillo

(Abridged) We present a detailed analysis of the morphology, isophotal parameters and surface brightness profiles for 100 early-type members of the Virgo Cluster, from dwarfs (M_B = -15.1 mag) to giants (M_B = -21.8 mag). Each galaxy has…

The widely varying dwarf galaxy counts in different environments provide a strong challenge to standard hierarchical clustering models. The luminosity function is not universal, but seems to be strongly dependent upon environment. In this…

Astrophysics · Physics 2009-11-07 S. Sabatini , J. Davies , R. Scaramella , R. Smith , M. Baes , S. M. Linder , S. Roberts , V. Testa

Intermediate surface brightness (ISB) galaxies are less numerous than their counterparts at high and low surface brightness (HSB and LSB). Investigating ISB characteristics from a sample from the S4G survey, complete down to M_B=-16, we…

Astrophysics of Galaxies · Physics 2015-12-02 Jenny G. Sorce , Peter Creasey , Noam I. Libeskind

We used the HST WFPC2 to obtain I-band images of the centers of 81 brightest cluster galaxies (BCGs), drawn from a volume-limited sample of nearby BCGs. The images show a rich variety of morphological features, including multiple or double…

We report on a search for faint (R total magnitude fainter than 21) and low surface brightness galaxies (R central surface brightness fainter than ~24) (fLSBs) in a 0.72x0.82 deg2 area centered on the Coma cluster. We analyzed deep B and R…

We have observed 433 z<=0.08 brightest cluster galaxies (BCGs) in a full-sky survey of Abell clusters. The BCG Hubble diagram is consistent to within 2% of a Omega_m=0.3, Lambda=0.7 Hubble relation. The L_m-alpha relation for BCGs, which…

Astrophysics of Galaxies · Physics 2015-06-22 Tod R. Lauer , Marc Postman , Michael A. Strauss , Genevieve J. Graves , Nora E. Chisari

We have placed limits on the cosmological significance of gas-rich low surface-brightness (LSB) galaxies as a proportion of the total population of gas-rich galaxies by carrying out a very deep survey (HIDEEP) for neutral hydrogen (HI) with…

The local space density of galaxies as a function of their basic structural parameters --like luminosity, surface brightness and scalesize-- is still poorly known. Our poor knowledge is mainly the result of strong selection biases against…

Astrophysics · Physics 2007-05-23 Roelof S. de Jong , Cedric Lacey

The Hubble Ultra Deep Field (HUDF) contains a significant number of B, V and i'-band dropout objects, many of which were recently confirmed to be young star-forming galaxies at z~4-6. These galaxies are too faint individually to accurately…

Astrophysics · Physics 2010-10-20 N. P. Hathi , R. A. Jansen , R. A. Windhorst , S. H. Cohen , W. C. Keel , M. R. Corbin , R. E. Ryan

We have measured K-band surface brightness fluctuations (SBFs) of 19 early-type galaxies in the Fornax cluster. Combining our results with published data, we find the absolute SBF magnitude Mbar_K = (-5.84)+(3.6)*[(V-I)-1.15]. The intrinsic…

Astrophysics · Physics 2009-11-06 Michael C. Liu , James R. Graham , Stephane Charlot

We investigate the stellar disk properties of a sample of 19 nearby spiral galaxies with low inclination and late Hubble type (Scd or later). We combine our high-resolution HST I-band observations with existing ground-based optical images…

Astrophysics · Physics 2009-11-07 Torsten Boeker , Rebecca Stanek , Roeland P. van der Marel

We present HST/NICMOS data to study the surface brightness distribution of stellar light within the inner 10" of Sgr A* at 1.4, 1.7 and 1.9 microns. We use these data to independently examine the surface brightness distribution that had…

Astrophysics of Galaxies · Physics 2015-05-30 F. Yusef-Zadeh , H. Bushouse , M. Wardle

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…

Cosmology and Nongalactic Astrophysics · Physics 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

Surface brightness maps at 12 microns, derived from observations with the Infrared Astronomical Satellite (IRAS), are used to estimate the integrated flux at this wavelength from the Galactic bulge as a function of galactic latitude along…

Astrophysics · Physics 2009-10-30 Jay A. Frogel

We have obtained deep B and R-band CCD photometry for 5 dE galaxies that were previously identified on Schmidt films covering the Cen A group region. From a Fourier analysis of the R-band CCD images we determined the surface brightness…

Astrophysics · Physics 2009-10-31 Helmut Jerjen , Ken C. Freeman , Bruno Binggeli

We present a Monte-Carlo technique to probe the cosmic Infrared background radiation (CIB) with faint source confusion in deep, wide-field 4 micron images. We report a detection of surface brightness fluctuations using an ensemble of 5000…

Astrophysics · Physics 2009-11-07 J. Xu , J. J. Bock , K. M. Ganga , V. Gorjian , K. Uemizu , M. Kawada , A. E. Lange , T. Matsumoto , T. Watabe

We investigate the photometric properties of 456 bright galaxies using imaging data recorded during the commissioning phase of the Sloan Digital Sky Survey (SDSS). Morphological classification is carried out by correlating results of…

Astrophysics · Physics 2009-07-09 K. Shimasaku , M. Fukugita , M. Doi , M. Hamabe , T. Ichikawa , S. Okamura , M. Sekiguchi , N. Yasuda