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相关论文: Luminosity and clustering of galaxies selected by …

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We study the luminosity function and clustering properties of subsamples of local galaxies selected from the Stromlo-APM survey by the rest-frame equivalent widths of their Halpha and Oii emission lines. The b_J luminosity function of…

天体物理学 · 物理学 2009-10-31 J. Loveday , L. Tresse , S. Maddox

We present clustering measurements for samples of galaxies selected by morphological type and luminosity from the recently completed Stromlo-APM Redshift Survey. Early type galaxies are clustered more strongly by a factor 3.5--5.5, than…

天体物理学 · 物理学 2009-10-22 J. Loveday , S. J. Maddox , G. Efstathiou , B. A. Peterson

We analyse emission-line properties of the bj-selected Stromlo-APM spectra (<z> = 0.05). Because this is a representative sample, we can study the global spectral properties of the local galaxy population. We classify spectra according to…

天体物理学 · 物理学 2007-05-23 Laurence Tresse , Steve J. Maddox , Jon Loveday

We use narrowband imaging (FWHM = 70 A) to select a sample of emission line galaxies between 0.20 <~ z <~ 1.22 in two fields covering 0.5 sq. deg. We use spectroscopic follow-up to select a sub-sample of Halpha emitting galaxies at z ~ 0.24…

天体物理学 · 物理学 2011-11-10 Eduard Westra , D. Heath Jones

We present the CIDA-UCM-Yale (Centro de Investigaciones de Astronomia, Universidad Complutense de Madrid and Yale University) survey for Halpha+[NII]6549,6584 emission-line galaxies using objective-prism spectra. The most important…

天体物理学 · 物理学 2009-11-10 A. Bongiovanni , G. Bruzual , G. Magris , J. Gallego , C. E. Garcia-Dabo , P. Coppi , C. Sabbey

Luminosity Functions have been obtained for very faint dwarf galaxies in the cores of four rich clusters of galaxies (Abell 2052, 2107, 2199 and 2666). It is found that the luminosity function of dwarf galaxies rises very steeply in these…

天体物理学 · 物理学 2009-10-28 R. De Propris , C. J. Pritchet , W. E. Harris , R. D. McClure

We present an analysis of the properties of the lowest Halpha-luminosity galaxies (L_Halpha<4x10^32 W; SFR<0.02 Msun/yr) in the Galaxy And Mass Assembly (GAMA) survey. These galaxies make up the the rise above a Schechter function in the…

We use the stellar-mass-selected catalog from the Spitzer Large Area Survey with Hyper-Suprime-Cam (SPLASH) in the COSMOS field to study the environments of galaxies via galaxy density and clustering analyses up to $z \sim 2.5$. The…

We analyze spectral properties of 1671 galaxies from the Stromlo-APM survey, selected to have 15 < b_J < 17.15 and having a mean redshift z = 0.05. This is a representative local sample of field galaxies, so the global properties of the…

天体物理学 · 物理学 2009-10-31 L. Tresse , S. Maddox , J. Loveday , C. Singleton

The luminosity function of galaxies is derived from a cosmological hydrodynamic simulation of a Lambda cold dark matter (CDM) universe with the aid of a stellar population synthesis model. At z=0, the resulting B band luminosity function…

天体物理学 · 物理学 2009-11-06 Kentaro Nagamine , Masataka Fukugita , Renyue Cen , Jeremiah P. Ostriker

The galaxy Luminosity Function (LF) has been estimated in the rest frame B luminosity at 0<z<1.25 and at 1700 {\AA} for 2.5<z<4.5 from deep multicolor surveys in the HDF-N, HDF-S, NTT-DF. The results have been compared with a recent version…

天体物理学 · 物理学 2009-11-06 F. Poli , N. Menci , E. Giallongo , A. Fontana , S. Cristiani , S. D' Odorico

We discuss a correlation between star formation activity (SFA) and luminosity of star-forming galaxies at intermediate redshifts of $0.2\le z\le 0.6$ in both cluster and field environments. Equivalent width (EW) of [O{\sc ii}] is used for…

天体物理学 · 物理学 2009-11-07 Yuka Y. Tajiri , Hideyuki Kamaya

There is accumulating evidence that the faint end of the galaxy luminosity function might be very different in different locations. The luminosity function might be rising in rich clusters and flat or declining in regions of low density. If…

天体物理学 · 物理学 2009-11-07 R. Brent Tully , Rachel S. Somerville , Neil Trentham , Marc A. W. Verheijen

We present our analysis on the clustering properties of star-forming galaxies selected by narrow-band excesses in the Subaru Deep Field. Specifically we focus on Halpha emitting galaxies at z = 0.24 and z = 0.40 in the same field, to…

We summarise the main results obtained over the last two years by the ESO Slice Project (ESP) redshift survey, concerning the luminosity function and mean density of galaxies, and their implications for the galaxy number counts at bright…

天体物理学 · 物理学 2007-05-23 E. Zucca , G. Zamorani , P. Vettolani

Star formation is mainly determined by the observation of H$\alpha$ radiation which is related to the presence of short lived massive stars. Disc galaxies show a strong cutoff in H$\alpha$ radiation at a certain galactocentric distance…

星系天体物理 · 物理学 2011-08-31 Jan Pflamm-Altenburg , Pavel Kroupa

We present a study on the clustering of a stellar mass selected sample of galaxies with stellar masses M*>10^10Msol at redshifts 0.4<z<2.0, taken from the Palomar Observatory Wide-field Infrared Survey. We examine the clustering properties…

宇宙学与河外天体物理 · 物理学 2016-11-25 Sebastien Foucaud , Christopher J. Conselice

We have carried out a study of the luminosity function (henceforth LF) of galaxies in the region of the HDF-North using our very complete redshift catalog. We solve for the LF at four rest frame wavelengths from 0.24 to 2.2mu. We find that…

天体物理学 · 物理学 2009-11-06 Judith G. Cohen

We present a deep wide field Halpha imaging survey of the central regions of the two nearby clusters of galaxies Coma and Abell1367, taken with the WFC at the INT2.5m telescope. We determine for the first time the Schechter parameters of…

天体物理学 · 物理学 2009-11-07 J. Iglesias-Paramo , A. Boselli , L. Cortese , J. M. Vilchez , G. Gavazzi

We set up a model for the evolution of the galaxy luminosity function, taking advantage of recent work that brought in some better understanding of the mass function for gravitationally condensed objects. The physics of cooling of the…

天体物理学 · 物理学 2007-05-23 Patrick Valageas , Richard Schaeffer
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