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Related papers: Nearby Galaxies in the 2micron All Sky Survey I. K…

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A sample of close major-merger pairs (projected separation ${\rm 5 \leq r \leq 20 h^{-1}}$ kpc, ${\rm K_s}$ band magnitude difference $\delta {\rm K_s} \leq 1$ mag) is selected from the matched 2MASS-2dFGRS catalog of Cole et al. (2001).…

Astrophysics · Physics 2009-11-10 C. K. Xu , Y. C. Sun , X. T. He

In the first paper of this series we use the publicly available code Gim2D to model the r- and i-band images of all galaxies in a magnitude-limited sample of roughly 1800 morphologically classified galaxies taken from the Sloan Digital Sky…

Astrophysics · Physics 2015-06-24 Lidia A. M. Tasca , Simon D. M. White

We present deep photometry obtained with the Hubble Space Telescope (HST) in a field in Baade's Window in the Galactic bulge. We derive a luminosity function down to I ~ 24.3, or V ~ 27.5, corresponding to M ~ 0.3 Msun. The luminosity…

Using a samples of 61506 spiral galaxies selected from the SDSS DR2, we examine the luminosity function (LF) of spiral galaxies with different inclination angles. We find that the characteristic luminosity of the LF, $L^*$, decreases with…

Astrophysics · Physics 2011-02-11 Zhengyi Shao , Quanbao Xiao , Shiyin Shen , H. J. Mo , Xiaoyang Xia , Zugan Deng

Stellar population characteristics are presented for a sample of low luminosity early-type galaxies (LLEs) in order to compare them with their more luminous counterparts. Long-slit spectra of a sample of 10 LLEs were taken with the ESO New…

Astrophysics · Physics 2009-11-13 A. E. Sansom , M. S. Northeast

Super star clusters (SSCs) are typically found in interacting galaxies and trace an extreme form of star-formation. We present a K-band study of SSC candidates in a sample of local luminous infrared galaxies (LIRGs) using two adaptive…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Zara Randriamanakoto , Petri Vaisanen , Stuart Ryder , Erkki Kankare , Jari Kotilainen , Seppo Mattila

We present a luminosity function (LF) for lower main sequence stars in the Galactic bulge near (l,b)=(0,-6) to J=24, corresponding to M_J~9.3. This LF is derived from HST + NICMOS observations with the F110W and F160W filters. The main…

Astrophysics · Physics 2009-10-31 M. Zoccali , S. Cassisi , J. A. Frogel , A. Gould , S. Ortolani , A. Renzini , R. M. Rich , A. W. Stephens

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 a study of the H$\alpha$ line emission from a sample of 1482 optically-selected, morphologically-classified bright galaxies (median redshift of 0.05) derived from the Sloan Digital Sky Survey. The luminosity function is…

Astrophysics · Physics 2009-11-10 Osamu Nakamura , Masataka Fukugita , Jon Brinkmann , Donald P. Schneider

About 20% of low-redshift galaxies are late-type spirals with a small or no bulge component. Although they are the simplest disk galaxies in terms of structure and dynamics, the role of the different physical processes driving their…

Astrophysics of Galaxies · Physics 2017-05-10 L. Costantin , J. Méndez-Abreu , E. M. Corsini , L. Morelli , J. A. L. Aguerri , E. Dalla Bontà , A. Pizzella

We present the near-infrared (Ks-band) luminosity function of galaxies in two z~1 cluster candidates, 3C336 and Q1335+28. A third cluster, 3C289, was observed but found to be contaminated by a foreground system. Our wide field imaging data…

Astrophysics · Physics 2009-11-10 Tadayuki Kodama , R. G. Bower

We study X-ray to K-band luminosity ratios (L_X/L_K) of late-type galaxies in the 0.3-0.7 keV energy range. From the Chandra archive, we selected nine spiral and three irregular galaxies with point source detection sensitivity better than 5…

High Energy Astrophysical Phenomena · Physics 2015-05-20 Akos Bogdan , Marat Gilfanov

We construct a large data set of global structural parameters for 1300 field and cluster spiral galaxies and explore the joint distribution of luminosity L, optical rotation velocity V, and disk size R at I- and 2MASS K-bands. The I- and…

We measure the volume luminosity density and surface luminosity density generated by the Galactic disc, using accurate data on the local luminosity function and the disc's vertical structure. From the well measured volume mass density and…

Astrophysics · Physics 2009-11-11 Chris Flynn , Johan Holmberg , Laura Portinari , Burkhard Fuchs , Hartmut Jahreiss

We present photometrically calibrated images and surface photometry in the B, V, R, J, H, and K-bands of 25, and in the g, r, and K-bands of 5 nearby bright (Bo_T<12.5 mag) spiral galaxies with inclinations between 30-65 degrees spanning…

Astrophysics · Physics 2009-11-11 Susan A. Kassin , Roelof S. de Jong , Richard W. Pogge

We present deep B- and R-band surface photometry for a sample of 21 galaxies with morphological types between S0 and Sab. We present radial profiles of surface brightness, colour, ellipticity, position angle and deviations of axisymmetry…

Astrophysics · Physics 2008-11-26 E. Noordermeer , J. M. van der Hulst

We explore the shape of the galaxy luminosity function (LF) in groups of different mass by creating composite LFs over large numbers of groups. Following previous work using total group luminosity as the mass indicator, here we split our…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Aaron Robotham , Steve Phillipps , Roberto de Propris

(Abridged) Using data from the 2dFGRS we compute the conditional luminosity functions (CLFs) of early- and late-type galaxies. These functions give the average number of galaxies with luminosity L that reside in a halo of mass M, and are a…

Astrophysics · Physics 2009-11-07 Frank C. van den Bosch , Xiaohu Yang , H. J. Mo

K band observations of the galaxy populations of three high redshift (z=0.8-1.0), X-ray selected, massive clusters are presented. The observations reach a depth of K=21.5, corresponding to K*+3.5 mag. The evolution of the galaxy properties…

Astrophysics · Physics 2009-11-10 S. C. Ellis , L. R. Jones

The apparent shapes of spiral galaxies in the 2-Micron All Sky Survey Large Galaxy Atlas are used to constrain the intrinsic shape of their disks. When the distribution of apparent axis ratios is estimated using a nonparametric kernel…

Astrophysics · Physics 2009-11-13 Barbara S. Ryden