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相关论文: The Parameter Space Occupied by Galaxies: The Opti…

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We recover the joint and individual space density and surface brightness distribution(s) of galaxies from the Millennium Galaxy Catalogue. The MGC is a local survey spanning 30.9 sq deg and probing approximately one--two mag/sq arcsec…

天体物理学 · 物理学 2009-11-10 Simon P Driver , Jochen Liske , Nicholas J. G. Cross , Roberto De Propris , Paul D. Allen

We have conducted a search of a 9 deg$^{2}$ region of the CFHTLS around the Milky Way analog M101 (D$\sim$7 Mpc), in order to look for previously unknown low surface brightness galaxies. This search has uncovered 38 new low surface…

星系天体物理 · 物理学 2017-12-06 P. Bennet , D. J. Sand , D. Crnojević , K. Spekkens , D. Zaritsky , A. Karunakaran

We use the Hubble Ultra Deep Field (UDF) to study the galaxy luminosity-size (M-Re) distribution. With a careful analysis of selection effects due to both detection completeness and measurement reliability we identify bias-free regions in…

天体物理学 · 物理学 2007-05-23 E. Cameron , S. P. Driver

We present luminosity functions for galaxies in loose groups in the Las Campanas Redshift Survey, differentiated by their environment (defined by the line-of-sight velocity dispersion sigma of the host groups) and also by their spectral…

天体物理学 · 物理学 2016-08-30 Daniel Christlein

Results from the Arecibo HI Strip Survey, an unbiased extragalactic HI survey, combined with optical and 21cm follow-up observations, determine the HI Mass Function and the cosmological mass density of HI at the present epoch. Both are…

天体物理学 · 物理学 2015-06-24 M. A. Zwaan , F. H. Briggs , D. Sprayberry

We use our catalog of photometric redshifts in the Hubble Deep Field (HDF) to estimate the Luminosity Function (LF) of galaxies up to z=2. Using the obtained LF and a relationship between luminosity and halo size, we calculate the expected…

天体物理学 · 物理学 2007-05-23 A. Fernandez-Soto , K. M. Lanzetta , A. Yahil , H. -W. Chen

Studies of the Hubble Deep Field (HDF) and other deep surveys have revealed an apparent peak in the ultraviolet (UV) luminosity density, and therefore the star-formation rate density, of the Universe at redshifts 1<z<2. We use photometric…

天体物理学 · 物理学 2007-05-23 Sebastian M. Pascarelle , Kenneth M. Lanzetta , Alberto Fernandez-Soto

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

The Fornax Spectroscopic Survey is a large optical spectroscopic survey of ALL 14,000 objects with 16.5<Bj<19.7 in a 12 sq.deg area of sky centered on the Fornax Cluster. We are using the 400-fibre Two Degree Field spectrograph on the…

天体物理学 · 物理学 2007-05-23 M. J. Drinkwater , S. Phillipps , J. B. Jones

Photometric redshifts have been determined for the galaxies in the Hubble Deep Field. The resulting redshift distribution shows two peaks: one at z~0.6 and one at z~2.2. Luminosity functions derived from the redshifts show strong luminosity…

天体物理学 · 物理学 2009-10-28 Stephen D. J. Gwyn , F. D. A. Hartwick

Results of surface photometry of 50 galaxies in the Local Volume based on archived images obtained with the Hubble Space Telescope are presented. Integrated magnitudes in the V and I bands are introduced for the sample galaxies, along with…

星系天体物理 · 物理学 2023-11-13 K. A. Kryzhanovsky M. E. Sharina , I. D. Karachentsev , G. M. Karataeva

We present a new determination of the surface brightness of our Galaxy at the Solar Neighbourhood as observed from outside the Galaxy. We rely on various existing optical and infra-red surveys to obtain a multiwavelength estimate. On the…

天体物理学 · 物理学 2009-11-11 A. -L. Melchior , F. Combes , A. Gould

Massive low surface brightness galaxies have disk central surface brightnesses at least one magnitude fainter than the night sky, but total magnitudes and masses that show they are among the largest galaxies known. Like all low surface…

天体物理学 · 物理学 2015-05-13 K. O'Neil

We present luminosity and surface brightness distributions of 40,111 galaxies with K-band photometry from the United Kingdom Infrared Telescope (UKIRT) Infrared Deep Sky Survey (UKIDSS) Large Area Survey (LAS), Data Release 3 and optical…

天体物理学 · 物理学 2009-07-21 Anthony J. Smith , Jon Loveday , Nicholas J. G. Cross

We present optical and millimetric data for 47 intermediate Hubble type spiral galaxies located either in dense environments or in the field. We compare correlations between global parameters, such as far-infrared luminosity, blue…

天体物理学 · 物理学 2009-11-07 Duilia F. de Mello , Marcio A. G. Maia , Tommy Wiklind

Using the newly available infrared images of the Hubble Deep Field in the J, H, and K bands and an optimal photometric method, we have refined a technique to estimate the redshifts of 1067 galaxies. A detailed comparison of our results with…

天体物理学 · 物理学 2009-10-30 A. Fernandez-Soto , K. M. Lanzetta , A. Yahil

The Hubble Deep Fields continue to be a valuable resource for studying the distant universe, particularly at z>2 where their comoving volume becomes large enough to encompass several hundred L* galaxies or their progenitors. Here I present…

天体物理学 · 物理学 2009-10-31 Mark Dickinson

Observations in the rest frame ultraviolet from various space missions are used to define the nearby starburst regions having the highest surface brightness on scales of several hundred pc. The bright limit is found to be 6x10^-16…

天体物理学 · 物理学 2009-10-30 Daniel W. Weedman , Jeffrey B. Wolovitz , Matthew A. Bershady , Donald P. Schneider

(Summary) Making use of scaling relations between the central and the total galaxy luminosity of a dark matter halo as a function of the halo mass, and the scatter in these relations, we present an empirical model to describe the luminosity…

天体物理学 · 物理学 2009-11-11 Asantha Cooray

The relations between oxygen abundance and disk surface brightness (OH-SB relation) in the infrared W1 band are examined for a nearby late-type galaxies. The oxygen abundances were presented in Paper I. The photometric characteristics of…

星系天体物理 · 物理学 2015-06-22 L. S. Pilyugin , E. K. Grebel , I. A. Zinchenko , A. Y. Kniazev