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相关论文: Near-infrared surface photometry of spiral galaxie…

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We present infrared imaging data in the J and K' bands obtained for 18 active spiral galaxies, together with 11 non active galaxies taken as a control sample. All of them were chosen to satisfy well defined isolation criteria so that the…

天体物理学 · 物理学 2009-10-31 I. Marquez , F. Durret , R. M. Gonzalez Delgado , I. Marrero , J. Masegosa , J. Maza , M. Moles , E. Perez , M. Roth

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…

天体物理学 · 物理学 2009-11-11 Susan A. Kassin , Roelof S. de Jong , Richard W. Pogge

We have obtained deep J and Ks images of a sample of nine barred galaxies in order to collect a reliable and homogeneous set of images to which N-body simulations of barred galaxies will be compared. The observations were performed using…

天体物理学 · 物理学 2009-11-13 Dimitri Gadotti , Lia Athanassoula , Luis Carrasco , Albert Bosma , Ronaldo de Souza , Elsa Recillas

We present data for a sample of 45 spiral galaxies over a range of Hubble types, imaged in the near-IR J and K bands. Parameters are calculated describing the bulge, disk and bar K-band light distributions, and we look for correlations…

天体物理学 · 物理学 2007-05-23 M. S. Seigar , P. A. James

We present detailed JHK surface photometry with ellipse fits of 13 galaxies selected from previous optical observations as likely candidates for having a secondary bar or a triaxial bulge within the primary bar. We have found 7…

天体物理学 · 物理学 2007-05-23 D. Friedli , H. Wozniak , M. Rieke , L. Martinet , P. Bratschi

We present new high-resolution near-infrared observations in the J,H and K bands, obtained to study the properties of Seyfert host galaxies. The dataset consists of images in the three bands of practically the entire CfA sample of Seyfert…

We present optical and near-infrared (NIR) surface brightness and colour profiles,in bands ranging from U to K, for the disk and bulge components of a complete sample of 30 nearby S0 to Sbc galaxies with inclinations larger than 50 degrees.…

天体物理学 · 物理学 2009-10-30 R. F. Peletier , M. Balcells

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…

天体物理学 · 物理学 2009-11-07 Karen L. Masters , Riccardo Giovanelli , Martha P. Haynes

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…

天体物理学 · 物理学 2009-10-28 Leslie E. Kuchinski , Donald M. Terndrup

We analyse V and H-band surface photometry of a sample of 18 Sb-Sd galaxies. Combining high resolution HST images with ground-based NIR observations, we extract photometric profiles, which cover the whole disk and provide the highest…

宇宙学与河外天体物理 · 物理学 2009-11-13 Katia Ganda , Reynier Peletier , Marc Balcells , Jesus Falcon-Barroso

All slightly extended sources were identified on deep K-band maps of 46 spiral galaxies reaching at least K=20.3 mag/arcsec2 at a signal-to-noise level of 3. The galaxies had inclination angles <65 deg and linear resolutions <100 pc with…

天体物理学 · 物理学 2008-09-24 P. Grosbol , H. Dottori

Narrow-band H-alpha+[NII] and broadband R images and surface photometry are presented for a sample of 29 bright (M_B < -18) isolated S0-Scd galaxies within a distance of 48 Mpc. These galaxies are among the most isolated nearby spiral…

天体物理学 · 物理学 2009-11-11 R. A. Koopmann , J. D. P. Kenney

We present the analysis of morphological and photometric properties of a sample of isolated spirals with (18) and without (11) an active nucleus, based on near-infrared imaging in the J and K' bands. The aim of this analysis is to find the…

天体物理学 · 物理学 2007-05-23 I. Marquez , F. Durret , J. Masegosa , M. Moles , R. M. Gonzalez Delgado , I. Marrero , J. Maza , E. Perez , M. Roth

Variations in the photometric parameters of stellar systems as a function of their evolution and the stellar populations comprising them are investigated. A set of seven evolutionary models with an exponential decrease in the star-formation…

We present near-infrared imaging of a sample of 57 relatively large, Northern spiral galaxies with low inclination. After describing the selection criteria and some of the basic properties of the sample, we give a detailed description of…

天体物理学 · 物理学 2009-11-07 J. H. Knapen , R. S. de Jong , S. Stedman , D. M. Bramich

We present a near-infrared (NIR) imaging study of barred low surface brightness (LSB) galaxies using the TIFR near-infrared Spectrometer and Imager (TIRSPEC). LSB galaxies are dark matter dominated, late type spirals that have low…

星系天体物理 · 物理学 2016-07-08 M. Honey , M. Das , J. P. Ninan , M. Purvankara

The first results of an observational programme aimed at mapping a sample of face--on spiral galaxies in the NIR are presented. This paper shows the surface photometry of the first ten galaxies in the sample. The data were taken in the…

天体物理学 · 物理学 2008-11-26 N. Castro-Rodriguez , F. Garzon

The Galactic Centre is of fundamental astrophysical interest, but existing near-infrared surveys fall short to cover it adequately. We introduce the GALACTICNUCLEUS survey, a $JHK_s$ imaging survey of the centre of the Milky Way with a…

We present CCD surface photometry of 16 nearby dwarf galaxies, many of which were only recently discovered. Our sample comprises both isolated galaxies and galaxies that are members of nearby galaxy groups. The observations were obtained in…

天体物理学 · 物理学 2009-11-07 L. N. Makarova , I. D. Karachentsev , E. K. Grebel , O. Yu. Barsunova

J, H, K, and L photometry for the stars in the central 2' (5 pc) of the Galaxy are presented. Using the observed J-H, H-K, and K-L colors and assumed intrinsic colors, we determine the interstellar extinction at 2.2 mic (A_K) for…

天体物理学 · 物理学 2009-10-28 R. D. Blum , K. Sellgren , D. L. DePoy
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