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We have performed a multiparametric analysis of luminosity data for a sample of 234 normal spiral and irregular galaxies observed in X-rays with the {\it Einstein Observatory}. This sample is representative of S and Irr galaxies, with a…

Astrophysics · Physics 2009-11-06 Alice Shapley , G. Fabbiano , P. B. Eskridge

We present a nonparametric morphology analysis of the stellar continuum and nebular emission lines for a sample of local galaxies. We explore the dependence of the various morphological parameters on wavelength and morphological type. Our…

Astrophysics of Galaxies · Physics 2023-05-10 Angelos Nersesian , Stefano Zibetti , Francesco D'Eugenio , Maarten Baes

We present CCD images of a sample of 39 HII galaxies taken at the Danish 1.54m telescope on La Silla. The images are used to analyse the morphology of these emission line dwarfs, and the structural properties of the knots of star formation…

Astrophysics · Physics 2015-06-24 Eduardo Telles , Jorge Melnick , Roberto Terlevich

To quantify the distribution of bar shapes in spiral galaxies, we have analysed 113 H-band and 89 B-band galaxy images from the Ohio State University Bright Spiral Galaxy Survey. Parameters measuring bar shape and position along the Hubble…

Astrophysics · Physics 2009-11-07 L. F. Whyte , R. G. Abraham , M. R. Merrifield , P. B. Eskridge , J. A. Frogel , R. W. Pogge

In Paper I we showed that multi-phase gaseous halos of late-type spiral galaxies, detected in the radio continuum, in Halpha, and in X-rays, are remarkably well correlated regarding their morphology and spatial extent. In this work we…

Astrophysics · Physics 2008-11-26 R. Tuellmann , D. Breitschwerdt , J. Rossa , W. Pietsch , R. -J. Dettmar

We have analyzed the emission line properties in the integrated spectra of 15 normal spiral galaxies. We show that very clear trends appear when plotting relevant emission line ratios or equivalent widths as a function of galaxy spectral…

Astrophysics · Physics 2007-05-23 Laerte Sodre , Grazyna Stasinska

We announce the initial release of data from the Ohio State University Bright Spiral Galaxy Survey, a BVRJHK imaging survey of a well-defined sample of 205 bright, nearby spiral galaxies. We present H-band morphological classification on…

We study a sample of 112 galaxies of various Hubble types imaged in the Two Micron All Sky Survey (2MASS) in the Near-Infra Red (NIR; 1-2 $\mu$m) $J$, $H$, and $K_s$ bands. The sample contains (optically classified) 32 elliptical, 16…

Astrophysics · Physics 2009-11-10 Nurur Rahman , Sergei F. Shandarin

We present optical observations of a sample of 57 spiral galaxies and describe the procedures followed to reduce the data. We have obtained images in the optical B and I broad bands, as well as in H alpha, with moderate spatial resolution…

Astrophysics · Physics 2009-11-10 J. H. Knapen , S. Stedman , D. M. Bramich , S. L. Folkes , T. R. Bradley

We present B and I band photometry, gas and star kinematics and 3D modelling of 7 giant spiral galaxies. The stellar systems studied have morphological types spanning from S0/a to Sc and absolute magnitudes from -20.6 to -22.5. The spectra…

Astrophysics · Physics 2007-05-23 E. Pignatelli , G. Galletta

The mid-infrared emission from 18 nearby galaxies imaged with the IRAC instrument on Spitzer Space Telescope samples the spatial distributions of the reddening-free stellar photospheric emission and the warm dust in the ISM. These two…

Astrophysics · Physics 2009-11-10 M. A. Pahre , M. L. N. Ashby , G. G. Fazio , S. P. Willner

We report on observations performed at 1.25 $mm$ of a southern galaxy sample, selected from the IRAS PSC and complete to $S_{60}=2 Jy$. We detected 18 sources and set significant limits on 10 further objects. We use these data to discuss…

Astrophysics · Physics 2009-10-22 A. Franceschini , P. Andreani

We discuss some recent integral field spectroscopy using the SAURON instrument of a sample consisting of 24 early-type spirals, part of the SAURON Survey, and 18 late-type spirals. Using 2-dimensional maps of their stellar radial velocity,…

We investigate the morphology of the [CII] emission in a sample of "normal" star-forming galaxies at $5<z<7.2$ in relation to their UV (rest-frame) counterpart. We use new ALMA observations of galaxies at $z\sim6-7$ as well as a careful…

We present a statistical analysis of the largest X-ray survey of nearby spiral galaxies in which diffuse emission has been separated from discrete source contributions. Regression and rank-order correlation analyses are used to compare…

Astrophysics · Physics 2009-11-06 A. M. Read , T. J. Ponman

Aperture photometry from our own observations and the literature is presented for the 12\um\ Galaxies in the near infrared J, H and K bands and, in some cases, in the L band. These data are corrected to ``total'' near--infrared magnitudes,…

Astrophysics · Physics 2009-10-28 Luigi Spinoglio , Matthew A. Malkan , Brian Rush , Luis Carrasco , Else Recillas-Cruz

Using photometry and spectroscopy of 144,609 galaxies from the Sloan Digital Sky Survey, we present bivariate distributions of pairs of seven galaxy properties: four optical colors, surface brightness, radial profile shape as measured by…

In this thesis, wide-field 2D spectroscopy is employed in order to characterise the nebular properties of late-type field galaxies. The observations performed for this dissertation represent the first endeavour to obtain full 2D coverage of…

Cosmology and Nongalactic Astrophysics · Physics 2010-06-07 F. F. Rosales-Ortega

A two-band (B and V) wide-field imaging survey of a complete, all-sky X-ray selected sample of 78 clusters in the redshift range z=0.04-0.07 is presented. The aim of this survey is to provide the astronomical community with a complete set…

It is a remarkable feature that various properties of galaxies vary according to their environments. However, only little has been known on the origin of this variety in galaxies. Using the Sloan Digital Sky Survey (SDSS) data, we…

Astrophysics · Physics 2007-05-23 Tomotsugu Goto
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