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相关论文: Model-independent Reconstruction of UV Luminosity …

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We investigate the evolution of the galaxy luminosity function from the VIMOS-VLT Deep Survey (VVDS) from the present to z=2 in five (U, B, V, R and I) rest-frame band-passes. We use the first epoch VVDS deep sample of 11,034 spectra…

We present spectroscopic Ly$\alpha$ luminosity functions (LFs) at z = 5.7 and z = 6.6 based on a large 209 source sample of Ly$\alpha$ emitter (LAE) candidates identified in Subaru/Hyper Suprime-Cam narrowband imaging and confirmed with…

星系天体物理 · 物理学 2025-06-18 A. J. Taylor , A. J. Barger , L. L. Cowie , E. M. Hu , A. Songaila

We present the results obtained with VLT/MUSE on the faint-end of the Lyman-alpha luminosity function (LF) based on deep observations of four lensing clusters. The precise aim of the present study is to further constrain the abundance of…

We present total infrared (IR) and ultraviolet (UV) luminosity functions derived from large representative samples of galaxies at z ~ 0, selected at IR and UV wavelengths from the IRAS IIFSCz catalogue, and the GALEX AIS respectively. We…

宇宙学与河外天体物理 · 物理学 2015-05-27 M. S. Bothwell , R. C. Kennicutt , B. D. Johnson , Y. Wu , J. C. Lee , D. Dale , C. Engelbracht , D. Calzetti , E. Skillman

We present rest-frame 15 and 24 um luminosity functions and the corresponding star-forming luminosity functions at z<0.3 derived from the 5MUSES sample. Spectroscopic redshifts have been obtained for ~98% of the objects and the median…

宇宙学与河外天体物理 · 物理学 2015-05-27 Yanling Wu , Yong Shi , George Helou , Lee Armus , Daniel A. Dale , Casey Papovich , Nurur Rahman , Kalliopi Dasyra , Sabrina Stierwalt

We use the Keck Deep Fields UGRI catalog of z~4, 3, and 2 UV-selected galaxies to study the evolution of the rest-frame 1700A luminosity density at high redshift. The ability to reliably constrain the contribution of faint galaxies is…

天体物理学 · 物理学 2008-11-26 Marcin Sawicki , David Thompson

Abridged: Subaru Deep Field line-emitting galaxies in four narrow-band filters at low and intermediate redshifts are presented. Broad-band colors, follow-up optical spectroscopy, and multiple NB filters are used to distinguish Ha, [O II],…

Aims. We aim to study the 250 micron luminosity function (LF) down to much fainter luminosities than achieved by previous efforts. Methods. We developed a modified stacking method to reconstruct the 250 micron LF using optically selected…

[Abridged] We use the deepest existing mid- and far-infrared observations (reaching ~3 mJy at 70 um) obtained with Spitzer in the GOODS and FIDEL fields to derive the evolution of the rest-frame 15 um, 35 um, and total infrared luminosity…

宇宙学与河外天体物理 · 物理学 2009-11-13 B. Magnelli , D. Elbaz , R. R Chary , M. Dickinson , D. Le Borgne , D. T. Frayer , C. N. A. Willmer

Luminosity functions and their integrated luminosity densities are presented for the 6dF Galaxy Survey (6dFGS). This ongoing survey ultimately aims to measure around 150,000 redshifts and 15,000 peculiar velocities over almost the entire…

天体物理学 · 物理学 2009-11-11 D. Heath Jones , Bruce A. Peterson , Matthew Colless , Will Saunders

Reionization is an inhomogeneous process, thought to begin in small ionized bubbles of the intergalactic medium (IGM) around overdense regions of galaxies. Recent Lyman-alpha (Ly$\alpha$) studies during the epoch of reionization show…

We present the rest-frame V-band luminosity function (LF) of galaxies at 0.4<z<4.0, measured from a near-infrared selected sample constructed from the NMBS, the FIRES, the FIREWORKS, and the ultra-deep NICMOS and WFC3 observations in the…

宇宙学与河外天体物理 · 物理学 2015-06-04 Danilo Marchesini , Mauro Stefanon , Gabriel B. Brammer , Katherine E. Whitaker

Ultraluminous Lyman alpha (Lya) emitting galaxies (ULLAEs) with log L (Lya)>43.5 erg/s near the epoch of reionization (z>5) make up the bright end of the LAE luminosity function (LF) and may provide insight into the process of reionization,…

星系天体物理 · 物理学 2022-07-13 Anthony J. Taylor , Lennox L. Cowie , Amy J. Barger , Esther M. Hu , Antoinette Songaila

In this paper we present a rigorous derivation of the luminosity function (LF) in presence of a background. Our approach is free from the logical contradictions of assigning negative values to positively defined quantities and avoid the use…

天体物理学 · 物理学 2009-11-10 S. Andreon , G. Punzi , A. Grado

We present a new determination of the evolving galaxy UV luminosity function (LF) over the extreme redshift range $12.5<z<18.5$, based on a wide-area search of $>$0.6 deg$^2$ of JWST NIRCam imaging containing $>150$ independent sight-lines.…

The shape of the faint-end of the high-z galaxy luminosity function (LF) informs early star formation and reionization physics during the Cosmic Dawn and Epoch of Reionization. Until recently, based on the strong gravitational lensing…

星系天体物理 · 物理学 2022-09-14 Zekang Zhang , Huanyuan Shan , Junhua Gu , Qian Zheng , Yidong Xu , Bin Yue , Yuchen Liu , Zhenghao Zhu , Quan Guo

Using a catalog of 147,986 galaxy redshifts and fluxes from the Sloan Digital Sky Survey (SDSS) we measure the galaxy luminosity density at z=0.1 in five optical bandpasses corresponding to the SDSS bandpasses shifted to match their…

Recent observations have constrained the galaxy UV luminosity function up to z~10. However, these observations alone allow for a wide range of reionization scenarios due to uncertainties in the abundance of faint galaxies and the escape…

宇宙学与河外天体物理 · 物理学 2015-06-03 M. Kuhlen , C. -A. Faucher-Giguere

Next generation observatories will enable us to study the first billion years of our Universe in unprecedented detail. Foremost among these are 21-cm interferometry with the HERA and the SKA, and high-$z$ galaxy observations with the James…

宇宙学与河外天体物理 · 物理学 2020-01-08 Jaehong Park , Nicolas Gillet , Andrei Mesinger , Bradley Greig

During the last decades, rapid progress has been made in measurements of the rest-frame ultraviolet (UV) luminosity function (LF) for high-redshift galaxies ($z \geq 6$). The faint-end of the galaxy LF at these redshifts provides powerful…

宇宙学与河外天体物理 · 物理学 2019-08-07 Yueying Ni , Mei-Yu Wang , Yu Feng , Tiziana Di Matteo