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相关论文: UV (2000 A) luminosity function of Coma cluster ga…

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[Abridged] The Coma cluster luminosity function (LF) from ultraviolet (2000 AA) to the near-infrared (H band) is summarized. In the UV the LF is very steep, much steeper than in the optical. The steep Coma UV LF implies that faint and…

天体物理学 · 物理学 2007-05-23 S. Andreon , J. -C. Cuillandre , R. Pello

We present the UV composite luminosity function for galaxies in the Virgo, Coma and Abell 1367 clusters. The luminosity function (LF) is well fitted by a Schechter function with M*(UV} - 5*log h(75) = -20.75 +/- 0.40 and alpha = -1.50 +/-…

天体物理学 · 物理学 2009-11-10 L. Cortese , G. Gavazzi , A. Boselli , J. Iglesias-Paramo , J. Donas , B. Milliard

We have used deep GALEX observations at the infall region of the Coma cluster to measure the faintest UV luminosity functions (LFs) presented for a rich galaxy cluster thus far. The Coma UV LFs are measured to M_UV = -10.5 in the GALEX FUV…

宇宙学与河外天体物理 · 物理学 2015-05-30 D. M. Hammer , A. E. Hornschemeier , S. Salim , R. Smith , L. Jenkins , B. Mobasher , N. Miller , H. Ferguson

We present estimates of the GALEX NUV and FUV luminosity functions (LFs) of the Coma cluster, over a total area of ~9 deg^2 (~25 Mpc^2), i.e. from the cluster center to the virial radius. Our analysis represents the widest and deepest UV…

天体物理学 · 物理学 2009-11-13 L. Cortese , G. Gavazzi , A. Boselli

We present a deep multi-colour CCD mosaic of the Coma cluster (Abell 1656), covering 5.2 deg^2 in the B and r bands, and 1.3 deg^2 in the U band. This large, homogeneous data set provides a valuable low redshift comparison sample for…

天体物理学 · 物理学 2009-11-06 Marco Beijersbergen , Henk Hoekstra , Pieter G. van Dokkum , Thijs van der Hulst

We determine the luminosity function (LF) of galaxies in the core of the Coma cluster for M_R<=-11.4 (assuming H_0=75 km/s/Mpc), a magnitude regime previously explored only in the Local Group. Objects are counted in a deep CCD image of Coma…

天体物理学 · 物理学 2009-10-28 G. M. Bernstein , R. C. Nichol , J. A. Tyson , M. P. Ulmer , D. Wittman

We present the luminosity function (LF) and measurements of the scalelengths, colours, and radial distribution of dwarf galaxies in the Coma cluster down to R=24. Our survey area is 674 arcmin^2; this is the deepest and most detailed survey…

天体物理学 · 物理学 2009-10-30 Neil Trentham

[Abridged] We determined the luminosity function (LF) of the Coma cluster galaxies selected by luminosity, and the LF bi-variate in central brightness. The Coma cluster and control fields were imaged using the CFH12K (42x28 arcmin) and UH8K…

天体物理学 · 物理学 2009-11-07 S. Andreon , J. -C. Cuillandre

We investigate the Coma cluster galaxy luminosity function (GLF) at faint magnitudes, in particular in the u* band by applying photometric redshift techniques applied to deep u*, B, V, R, I images covering a region of ~1deg2 (R 24). Global…

天体物理学 · 物理学 2009-11-13 C. Adami , O. Ilbert , R. Pello , J. C. Cuillandre , F. Durret , A. Mazure , J. P. Picat , M. P. Ulmer

We derive the Ultra-Violet (UV) luminosity function (LF) of star-forming galaxies in the redshift range $z = 0.6 - 1.2$, in the rest-frame far-UV ($1500$ \r{A}) wavelength. For this work, we are in particular interested in the bright end of…

星系天体物理 · 物理学 2024-05-16 M. Sharma , M. J. Page , I. Ferreras , A. A. Breeveld

A large spectroscopic survey is constructed of galaxies in the Coma cluster. The survey covers a wide area (1 deg$^2$) to deep magnitudes (R ~ 19.5), covering both the core (high density) and outskirts (intermediate to low density) of the…

We derive NUV luminosity functions for 6471 NUV detected galaxies in 28 $0.02 < z < 0.08$ clusters and consider their dependence on cluster properties. We consider optically red and blue galaxies and explore how their NUV LFs vary in…

星系天体物理 · 物理学 2018-11-07 Roberto De Propris , Malcolm Bremer , Steven Phillipps

An infrared survey of the central 650 arcmin$^2$ of the Coma cluster is used to determine the $H$ band luminosity function for the cluster. Redshifts are available for all galaxies in the survey with $H < 14.5$, and for this sample we…

天体物理学 · 物理学 2009-10-30 Roberto De Propris , Peter R. Eisenhardt , Adam Stanford , Mark Dickinson

We have determined the composite luminosity function (LF) for galaxies in 60 clusters from the 2dF Galaxy Redshift Survey. The LF spans the range $-22.5<M_{b_{\rm J}}<-15$, and is well-fitted by a Schechter function with ${M_{b_{\rm…

We present the near-infrared H band luminosity function (hereafter LF) of the Coma cluster of galaxies. It is the deepest ever computed in the near-infrared, for any type of environment, extending over 7 magnitudes, down to ~M_H*+6. The LF…

天体物理学 · 物理学 2007-05-23 S. Andreon , R. Pello'

Optical spectroscopy of 93 galaxies, 60 projected in the direction of Abell 1367, 21 onto the Coma cluster and 12 on Virgo, is reported. The targets were selected either because they were detected in previous H\alpha, UV or r' surveys. The…

天体物理学 · 物理学 2008-11-26 L. Cortese , G. Gavazzi , J. Iglesias-Paramo , A. Boselli , L. Carrasco

By means of wide-field (42x28 arcmin) CCD images of the Coma cluster of galaxies and of control fields, taken at the Canada-France-Hawaii telescope with the CFH12K and UH8K cameras, we determine the luminosity function bi-variate in central…

天体物理学 · 物理学 2007-05-23 S. Andreon , J. -C. Cuillandre

The composite galaxy luminosity function (hereafter LF) of 39 Abell clusters of galaxies is derived by computing the statistical excess of galaxy counts in the cluster direction with respect to control fields. Due to the wide field coverage…

天体物理学 · 物理学 2009-10-31 M. Paolillo , S. Andreon , G. Longo , E. Puddu , R. R. Gal , R. Scaramella , S. G. Djorgovski , R. de Carvalho

Using mid-IR and optical data, we deduce the total infrared (IR) luminosities of galaxies in the Coma cluster and present their infrared luminosity function (LF). The shape of the overall Coma IR LF does not show significant differences…

天体物理学 · 物理学 2009-11-13 Lei Bai , George H. Rieke , Marcia J. Rieke , Joannah L. Hinz , Douglas M. Kelly , Myra Blaylock

Using our catalogue of V$_{26.5}$ isophotal magnitudes for 6756 galaxies in a region covering 60~$\times$~25~arcmin$^2$ in the center of the Coma cluster, plus 267 galaxies in a region of 9.7~$\times$~9.4~arcmin$^2$ around NGC~4839, we…

天体物理学 · 物理学 2007-05-23 C. Lobo , A. Biviano , F. Durret , D. Gerbal , O. LeFevre , A. Mazure , E. Slezak
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