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Related papers: Global Extinction in Spiral Galaxies

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In order to study the effects of internal extinction in spiral galaxies we search for correlations of near infrared (NIR) photometric parameters with inclination. We use data from the 2 Micron All-Sky Survey (2MASS) Extended Source Catalog…

Astrophysics · Physics 2009-11-07 Karen L. Masters , Riccardo Giovanelli , Martha P. Haynes

Observations show that the slope of the inner part of the H$\alpha$/[NII] rotation curves of disk galaxies is depressed by extinction: at fixed luminosity, the observed slope is in fact seen to depend on the disk inclination to the line of…

Astrophysics · Physics 2009-11-10 Carlos Valotto , Riccardo Giovanelli

To investigate the distribution of dust in Sb and Sc galaxies we have analyzed near-infrared and optical surface photometry for an unbiased sample of 37 galaxies. Since light in the $K$-band is very little affected by extinction by dust,…

Extinction in galaxies affects their observed properties. In scenarios describing the distribution of dust and stars in individual disk galaxies, the amplitude of the extinction can be modulated by the inclination of the galaxies. In this…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Ching-Wa Yip , Alex Szalay , Rosemary Wyse , Laszlo Dobos , Tamas Budavari , Istvan Csabai

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

We use slit spectroscopy of overlapping pairs of galaxies to directly determine the extinction in disks of foreground spiral galaxies. The Doppler shifts of pair members are determined via cross-correlation and their relative correlation…

Astrophysics · Physics 2009-10-31 Donovan L. Domingue , William C. Keel , Raymond E. White

The emerging light from a galaxy is under the influence of its own interstellar medium, as well as its spatial orientation. Considering a sample of 2,239 local spiral galaxies in optical (SDSS u, g, r, i, and z) and infrared bands (WISE W1,…

Astrophysics of Galaxies · Physics 2019-10-16 Ehsan Kourkchi , R. Brent Tully , J. Don Neill , Mark Seibert , Helene M. Courtois , Alexandra Dupuy

We study the correlations with inclination of H-band disk and bulge structural parameters and I-H colour profiles for a sample of 154 spiral galaxies, in order to detect possible effects due to internal extinction by dust. The selection of…

Astrophysics · Physics 2007-05-23 G. Moriondo , R. Giovanelli , M. P. Haynes

We investigate the effect of dust on spiral galaxies by measuring the inclination-dependence of optical colours for 24,276 well-resolved SDSS galaxies visually classified in Galaxy Zoo. We find clear trends of reddening with inclination…

An analysis is made on the morphology of the sequences, formed by stars distributed along the line of sight in (V,V--I) colour-magnitude diagrams from Baade's Window (l=1.0,b=-3.9). The extinction is due to an absorbing layer with an…

Astrophysics · Physics 2007-05-23 Y. K. Ng , G. Bertelli

We study internal extinction of late-type galaxies in the Sloan Digital Sky Survey. We find that the degree of internal extinction depends on both the concentration index c and K_s-band absolute magnitude M_K. We give simple fitting…

Astrophysics · Physics 2011-02-11 Jungyeon Cho , Changbom Park

Using spectra of normal emission line galaxies from the First Data Release of the Sloan Digital Sky Survey (SDSS) we have investigated the relations between the extinction $C({\rm H}\beta)$ as derived from the \Ha/\Hb emission line ratio…

Astrophysics · Physics 2009-11-10 G. Stasinska , A. Mateus , L. Sodre , R. Szczerba

The inclination of galaxies induces both reddening and extinction to their observed spectral energy distribution, which in turn impact the derived properties of the galaxies. Here we report a significant dependence of the error in…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Ching-Wa Yip , Alex S. Szalay , Samuel Carliles , Tamas Budavari

We present JHK surface photometry of 15 highly inclined, late-type (Sab-Sc) spirals and investigate the quantitative effects of dust extinction. Using the (J - H, H - K) two-color diagram, we compare the color changes along the minor axis…

Astrophysics · Physics 2009-10-28 Leslie E. Kuchinski , Donald M. Terndrup

We determine 37 differential extinctions in 23 gravitational lens galaxies over the range 0 < z_l < 1. Only 7 of the 23 systems have spectral differences consistent with no differential extinction. The median differential extinction for the…

Star formation is one of the most important processes in galaxy formation. The luminosity of Halpha recombination and [OII] forbidden emissions remain to be most used in measuring formation rate of massive stars in galaxies. Here we report…

Cosmology and Nongalactic Astrophysics · Physics 2011-10-05 Ching-Wa Yip , Alex S. Szalay

Using star counts in both color and magnitude from the Two Micron All Sky Survey (2MASS) Second Incremental Release Point Source Catalog we search for evidence of non-uniform extinction and stellar population density changes in the Galactic…

Astrophysics · Physics 2009-11-07 A. C. Quillen

We present a survey of the extinction properties of ten lensing galaxies, in the redshift range z = 0.04 - 1.01, using multiply lensed quasars imaged with the ESO VLT in the optical and near infrared. The multiple images act as 'standard…

Astrophysics · Physics 2008-11-26 Árdís Elíasdóttir , Jens Hjorth , Sune Toft , Ingunn Burud , Danuta Paraficz

In this paper we explore the relation between dust extinction and stellar light distribution in disks of spiral galaxies. Extinction influences our dynamical and photometric perception of disks, since it can distort our measurement of the…

Astrophysics · Physics 2009-11-11 B. W. Holwerda , R. A. González , P. C. van der Kruit , Ronald J. Allen

We have used UV (FOCA) and FIR (IRAS) images of six nearby late type galaxies to study the radial variation of the UV extinction (deduced from the FIR/UV ratio). We compare the UV extinction gradient with other extinction indicators (Balmer…

Astrophysics · Physics 2009-11-10 S. Boissier , A. Boselli , V. Buat , J. Donas , B. Milliard
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