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Related papers: Disc scalelengths out to redshift 5.8

200 papers

We present surface photometry results for a sample of eleven edge-on galaxies observed with the 6m telescope at the Special Astrophysical Observatory (Russia). The photometric scale length, scale height, and central surface brightness of…

Astrophysics · Physics 2009-11-10 Dmitry Bizyaev , Serafim Kajsin

We measure the contribution of galaxy disks to the overall gravitational potential of 30 nearly face-on intermediate-to-late-type spirals from the DiskMass Survey. The central vertical velocity dispersion of the disk stars, sigma(z,R=0), is…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Matthew A. Bershady , Thomas P. K. Martinsson , Marc A. W. Verheijen , Kyle B. Westfall , David R. Andersen , Rob A. Swaters

From inspection of 30 Hubble Space Telescope ACS images of M31, we provide a catalog of 449 galaxies seen through the spiral disk. Measurements of the positions of the galaxies, their integrated magnitudes in two colors and their sizes,…

Cosmology and Nongalactic Astrophysics · Physics 2010-05-14 Paul Hodge , Karl Krienke

Based on high-resolution spectra obtained with the MIKE spectrograph on the Magellan telescopes we present detailed elemental abundances for 20 red giant stars in the outer Galactic disk, located at Galactocentric distances between 9 and 13…

Astrophysics of Galaxies · Physics 2011-06-28 T. Bensby , A. Alves-Brito , M. S. Oey , D. Yong , J. Meléndez

The stellar disk in a spiral galaxy is believed to be truncated physically because the disk surface brightness is observed to fall faster than that for an exponential in the outer, faint regions. We review the literature associated with…

Astrophysics · Physics 2009-11-10 Chaitra A. Narayan , Chanda J. Jog

Rapid advance has been made recently in accurate distance measurements for nearby ($D < 11$ Mpc) galaxies based on the magnitude of the tip of red giant branch stars resolved with the Hubble Space Telescope. We use observational properties…

Astrophysics of Galaxies · Physics 2021-09-02 Igor D. Karachentsev , Olga G. Kashibadze

We present deep optical imaging of three face-on disk galaxies together with a detailed description of the reduction and calibration methods used, in order to measure the intrinsic shape of their outer stellar edges. Whereas it is now well…

Astrophysics · Physics 2007-05-23 M. Pohlen , R. -J. Dettmar , R. Luetticke , G. Aronica

We present axisymmetric maximum disk mass models for a sample of 74 spiral galaxies taken from the southern sky Fabry-Perot Tully-Fisher survey (Schommer et al. 1993). The sample contains galaxies spanning a large range of morphologies and…

Astrophysics · Physics 2009-10-31 Povilas Palunas , T. B. Williams

Using the multislit LDSS-2 spectrograph on the {\it William Herschel Telescope} we have completed a redshift survey in the magnitude range $22.5<B< 24$ which has produced 73 redshifts representing a 73\% complete sample uniformly-selected…

Astrophysics · Physics 2015-06-24 K. Glazebrook , R. Ellis , M. Colless , T. Broadhurst , J. Allington-Smith , N. Tanvir

We measure the clustering of DEEP2 galaxies at z=1 as a function of luminosity on scales 0.1 Mpc/h to 20 Mpc/h. Drawing from a parent catalog of 25,000 galaxies at 0.7<z<1.3 in the full DEEP2 survey, we create volume-limited samples having…

Increasingly large populations of disk galaxies are now being observed at increasingly high redshifts, providing new constraints on our knowledge of how such galaxies evolve. Are these observations consistent with a cosmology in which…

Astrophysics · Physics 2009-11-13 C. B. Brook , D. Kawata , H. Martel , B. K. Gibson , J. Bailin

For a compiled sample of disk galaxies with available photometry (B and K bands), velocity line-widths and HI integral fluxes, several parameters which trace the luminous, baryonic and dark matter contents were inferred. We investigated how…

Astrophysics · Physics 2009-11-07 J. Zavala , V. Avila-Reese , H. Hernandez-Toledo , C. Firmani

The measurements of the possible gravitational microlensing events are analysed with a simple yet accurate disc--halo model of the Milky Way Galaxy. This comprises a luminous exponential disc embedded in a flattened dark matter halo with…

Astrophysics · Physics 2016-06-08 N. W. Evans , J. Jijina

We used the ugr magnitudes of 1,437,467 F-G type main-sequence stars with metal abundance -2<[Fe/H]<+0.2 dex and estimated radial and vertical metallicity gradients for high Galactic-latitude fields (b>50) of the Milky Way Galaxy. The…

Astrophysics of Galaxies · Physics 2019-01-16 S. Tuncel Guctekin , S. Bilir , S. Karaali , O. Plevne , S. Ak

We analyze the J, H, and Ks 2MASS images of 140 late-type edge-on galaxies selected from the RFGC catalog (which contains flat galaxies with major-to-minor axis ratio a/b > 7). The NIR scalelengths (h) and scaleheights (z0) of the stellar…

Astrophysics · Physics 2007-05-23 S. Mitronova , D. Bizyaev

We examine how the location of star formation within disc galaxies depends on environment at intermediate redshift. This is achieved by comparing emission-line (r_em) and restframe B-band (r_B) scalelengths for matched samples of 50 field…

Astrophysics · Physics 2008-11-26 S. P. Bamford , B. Milvang-Jensen , A. Aragón-Salamanca

Aims: Following the study already presented in our previous paper, based on the Nordic Optical Telescope (NOT) sample, which consists of five clusters of galaxies within the redshift range 0.18 $\leq$ z $\leq$ 0.25, imaged in the central…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 B. Ascaso , J. A. L Aguerri , M. Moles , R. Sánchez-Janssen , D. Bettoni

The vertical profiles of chain and spiral galaxies in the Hubble Space Telescope Ultra Deep Field (UDF) are fit to sech^2(z/z_0) functions convolved with stellar profiles in order to measure the disk scale heights z_0 in four passbands. The…

Astrophysics · Physics 2008-11-26 Bruce G. Elmegreen , Debra Meloy Elmegreen

We estimated 34 sets of Galactic model parameters for three intermediate latitude fields with Galactic longitudes l=60, l=90, and l=180, and we discussed their dependence on the volume. Also, we confirmed the variation of these parameters…

Astrophysics · Physics 2009-11-13 S. Karaali , S. Bilir , E. Yaz , E. Hamzaoglu , R. Buser

We present an observational study of the dark matter fraction in star-forming disk-like galaxies up to redshift $z \sim 2.5$, selected from publicly available integral field spectroscopic surveys: KMOS$^{\rm 3D}$, KGES, and KROSS. To model…

Astrophysics of Galaxies · Physics 2025-07-09 G. Sharma , G. van de Ven , P. Salucci , M. Martorano