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Related papers: Bimodality of Freeman's Law

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We report on measurements of the disk central surface brightnesses (mu0) at 3.6 microns for 438 galaxies selected by distance and absolute magnitude cutoffs from the 2350+ galaxies in the Spitzer Survey of Stellar Structure in Galaxies…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Jenny G. Sorce , Helene M. Courtois , Kartik Sheth , R. Brent Tully

The Ursa Major Cluster appears to be unevolved and made up of HI-rich spiral galaxies. B,R,I,K' photometry has been obtained for 79 galaxies, including 62 in a complete sample with M(B)<-16.5 mag. The K' information is particularly…

Astrophysics · Physics 2009-10-30 R. Brent Tully , Marc A. W. Verheijen

We have acquired deep, H-band, imaging for a sample of 286 Virgo cluster galaxies with B <= 16 mag and extracted surface photometry from optical g,r,i,z Sloan Digital Sky Survey images of 742 Virgo Cluster Catalog galaxies, including those…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-13 Michael McDonald , Stephane Courteau , R. Brent Tully

A complete sample of spiral galaxies in the Ursa Major cluster is imaged at various optical wavelengths and in the Near-Infrared K'-band. HI rotation curves were obtained for all gas rich systems. The Near-Infrared surface brightness…

Astrophysics · Physics 2007-05-23 Marc Verheijen , Brent Tully

Using 10 095 galaxies (B < 20 mag) from the Millennium Galaxy Catalogue, we derive B-band luminosity distributions and selected bivariate brightness distributions for the galaxy population. All subdivisions extract highly correlated…

Differential K-band luminosity functions (LFs) are presented for a complete sample of 1613 nearby bright galaxies segregated by visible morphology. The LF for late-type spirals follows a power law that rises towards low luminosities whereas…

Cosmology and Nongalactic Astrophysics · Physics 2009-08-24 Nick Devereux , S. P. Willner , M. L. N. Ashby , C. N. A. Willmer , Paul Hriljac

We have used Virtual Observatory technology to analyse the disk scale length and central surface brightness for a sample of 29955 bright disk galaxies from the Sloan Digital Sky Survey. We use the results in the r-band and revisit the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Kambiz Fathi

HST B and I images are presented of 32 CFRS galaxies with secure redshifts in the range 0.5 < z < 1.2. These galaxies exhibit the same range of morphological types as seen locally, i.e., ellipticals, spirals and irregulars. The galaxies…

Astrophysics · Physics 2009-10-28 D. J. Schade , S. J. Lilly , David Crampton , F. Hammer , O. Le Fevre , L. Tresse

The statistics of the fundamental bulge and disk parameters of galaxies and their relation to the Hubble sequence were investigated by an analysis of optical and near-infrared observations of 86 face-on spiral galaxies. The availability of…

Astrophysics · Physics 2009-05-29 Roelof S. de Jong

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…

Astrophysics · Physics 2007-05-23 M. Beijersbergen , W. J. G. de Blok , J. M. van der Hulst

The K-band light-profiles from two statistically complete, diameter-limited samples of disk galaxies have been simultaneously modelled with a seeing-convolved Sersic r^{1/n} bulge and a seeing-convolved exponential disk. This has enabled an…

Astrophysics · Physics 2009-11-06 Alister W. Graham

We have assessed the significance of Tully and Verheijen's (1997) bimodal Ursa Major Cluster spiral galaxy near-infrared surface brightness distribution, focussing on whether this bimodality is simply an artifact of small number statistics.…

Astrophysics · Physics 2009-10-31 E. F. Bell , W. J. G. de Blok

We present Bivariate Brightness Distributions (BBDs) for four spectral types discriminated by the 2dFGRS. We discuss the photometry and completeness of the 2dFGRS using a deep, wide-field CCD imaging survey. We find that there is a strong…

Astrophysics · Physics 2007-05-23 Nicholas Cross , Simon Driver , David Lemon , Jochen Liske

We present BVI photometry of ten Seyfert 1 galaxies and narrow band H-alpha images for six of these objects as well. The results indicate that the luminosity sample distribution has an amplitude of almost 4 magnitudes with an average of…

Astrophysics · Physics 2009-11-07 N. V. Boris , C. J. Donzelli , M. G. Pastoriza , A. Rodriguez-Ardila , D. L. Ferreiro

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…

Disk scale length and central surface brightness for a sample of about 29955 bright disk galaxies from the Sloan Digital Sky Survey have been analysed. Cross correlation of the SDSS sample with the LEDA catalogue allowed us to investigate…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-17 Kambiz Fathi

We analyse a sample of about 2000 galaxies in 40 regular clusters, to look for evidence of segregation with respect to galaxy luminosities and morphological types. We find evidence of luminosity segregation for galaxies brighter than $M_R <…

Astrophysics · Physics 2007-05-23 C. Adami , A. Biviano , A. Mazure

Recent surveys have discovered hundreds of low surface brightness galaxies, systems with central surface brightness fainter than 22.0 B mag arcsec^-2, in the local universe. Plots of the surface brightness distribution - that is, the space…

Astrophysics · Physics 2007-05-23 K. O'Neil

Optical surveys for galaxies are biased against the inclusion of low surface brightness (LSB) galaxies. Disney (1976) suggested that the constancy of disk central surface brightness noticed by Freeman (1970) was not a physical result, but…

Astrophysics · Physics 2009-10-28 S. S. McGaugh , G. D. Bothun , J. M. Schombert

We investigate the origin of the galaxy color-concentration bimodality at the bright-end of the luminosity function (M(B) - 5 log h < -18 mag) with regard to the bulge-disc nature of galaxies. Via (2D) surface brightness profile modeling…

Cosmology and Nongalactic Astrophysics · Physics 2009-06-25 Ewan Cameron , Simon P. Driver , Alister W. Graham , Jochen Liske
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