中文
相关论文

相关论文: A Faint Flux-Limited Lyman Alpha Emitter Sample at…

200 篇论文

We describe the results of a new, wide-field survey for z=3.1 Ly-alpha emission-line galaxies (LAEs) in the Extended Chandra Deep Field South (ECDF-S). By using a nearly top-hat 5010 Angstrom filter and complementary broadband photometry…

We present a sample of Ly{\alpha} emitters (LAEs) at $z\approx6.6$ from our spectroscopic survey of high-redshift galaxies using the multi-object spectrograph M2FS on the Magellan Clay telescope. The sample consists of 36 LAEs selected by…

星系天体物理 · 物理学 2022-03-09 Yuanhang Ning , Linhua Jiang , Zhen-Ya Zheng , Jin Wu

The GALEX (Galaxy Evolution Explorer) spectroscopic survey mode, with a resolution of about 8 A in the FUV (1350 - 1750 A) and about 20 A in the NUV (1950 - 2750 A) is used for a systematic search of Ly-a emitting galaxies at low redshift.…

We construct a sample of low-redshift Ly-alpha emission-line selected sources from GALEX grism spectroscopy of nine deep fields to study the role of Ly-alpha emission in galaxy populations with cosmic time. Our final sample consists of 119…

宇宙学与河外天体物理 · 物理学 2011-02-11 L. L. Cowie , A. J. Barger , E. M. Hu

Context: Narrow-band surveys for Ly-alpha emitters (LAEs) is a powerful tool in detecting high, and very high, redshift galaxies. Even though samples are growing at redshifts z = 3 - 6, the nature of these galaxies is still poorly known.…

We present optical spectroscopy of two samples of GALEX grism selected Ly alpha emitters (LAEs): one at z=0.195-0.44 and the other at z=0.65-1.25. We have also observed a comparison sample of galaxies in the same redshift intervals with the…

宇宙学与河外天体物理 · 物理学 2015-05-28 Lennox L. Cowie , Amy J. Barger , Esther M. Hu

Recent evidence suggests that high-redshift Ly-alpha emitting galaxies (LAEs) with logL(Ly-alpha) > 43.5 erg/s, referred to as ultraluminous LAEs (ULLAEs), may show less evolution than lower-luminosity LAEs in the redshift range z=5.7-6.6.…

星系天体物理 · 物理学 2022-12-20 A. Songaila , A. J. Barger , L. L. Cowie , E. M. Hu , A. J. Taylor

The analysis of the physical properties of low-redshift Ly$\alpha$ emitters (LAEs) can provide clues in the study of their high-redshift analogues. At $z \sim 0.3$, LAEs are bright enough to be detected over almost the entire…

We investigate the fraction of z ~ 0.3 Lyman alpha emitting galaxies (LAEs) which host active galactic nucleus activity, which is typically from 1 - 5% at 2 < z < 6. Using optical spectroscopy of 23 LAEs at 0.2 < z < 0.45 selected with…

宇宙学与河外天体物理 · 物理学 2009-09-24 Steven L. Finkelstein , Seth H. Cohen , Sangeeta Malhotra , James E. Rhoads , Casey Papovich , Zhenya Zheng , Junxian Wang

We present the results of a stellar population analysis of 30 Lyman alpha emitting galaxies (LAEs) at z ~ 0.3, previously discovered with the Galaxy Evolution Explorer (GALEX). With a few exceptions, we can accurately fit model spectral…

天体物理学 · 物理学 2009-07-22 Steven L. Finkelstein , Seth H. Cohen , Sangeeta Malhotra , James E. Rhoads

Using wide field narrow-band surveys, we provide a new measurement of the $z=6.6$ Lyman-$\alpha$ Emitter (LAE) luminosity function (LF), which constraints the bright end for the first time. We use a combination of archival narrow-band NB921…

星系天体物理 · 物理学 2015-06-01 Jorryt Matthee , David Sobral , Sérgio Santos , Huub Röttgering , Behnam Darvish , Bahram Mobasher

We present the statistical properties of Ly$\alpha$ emission in 586 galaxies at $z=4.5-14.2$, observed by multiple JWST/NIRSpec spectroscopy projects, including JADES, GLASS, CEERS, and GO/DDT programs. We obtain Ly$\alpha$ equivalent width…

We report the first direct and robust measurement of the faint-end slope of the Lyman-alpha emitter (LAE) luminosity function at z = 5.7. Candidate LAEs from a low-spectral-resolution blind search with IMACS on Magellan-Baade were targeted…

星系天体物理 · 物理学 2015-06-11 Alan Dressler , Alaina Henry , Crystal L. Martin , Marcin Sawicki , Patrick McCarthy , Edward Villaneuva

We construct a flux-limited sample of 135 candidate z~1 Lya emitters (LAEs) from Galaxy Evolution Explorer (GALEX) grism data using a new data cube search method. These LAEs have luminosities comparable to those at high redshifts and lie…

宇宙学与河外天体物理 · 物理学 2014-03-05 Isak G. B. Wold , Amy J. Barger , Lennox L. Cowie

We present a spectroscopic survey of Ly$\alpha$ emitters (LAEs) at $z\sim3.7$ and $z\sim4.8$. The LAEs are selected using the narrowband technique based on the combination of deep narrowband and broadband imaging data in two deep fields,…

星系天体物理 · 物理学 2023-10-12 Weiyang Liu , Linhua Jiang

We detect 20 $z=7.0$ Ly$\alpha$ emitter (LAE) candidates to $L({\rm Ly}\alpha) \geq 2 \times 10^{42}$ erg s$^{-1}$ or $0.3$ $L^*_{z=7}$ and in $6.1\times 10^5$ Mpc$^3$ volume in the Subaru Deep Field and the Subaru/XMM-Newton Deep Survey…

We present a rest-frame ultraviolet morphological analysis of 108 z=2.1 Lyman Alpha Emitters (LAEs) in the Extended Chandra Deep Field South (ECDF-S) and compare it to a similar sample of 171 LAEs at z=3.1. Using Hubble Space Telescope…

宇宙学与河外天体物理 · 物理学 2015-05-27 Nicholas Bond , Eric Gawiser , Lucia Guaita , Nelson Padilla , Caryl Gronwall , Robin Ciardullo , Kamson Lai

We present two uniformly observed spectroscopic samples of Ly-alpha emitters (LAEs) (127 at z = 5.7 and 82 at z = 6.6), which we use to investigate the evolution of the LAE population at these redshifts. The observations cover a large field…

星系天体物理 · 物理学 2024-07-15 A. Songaila , L. L. Cowie , A. J. Barger , E. M. Hu , A. J. Taylor

We present the results of an optical spectroscopic study of 12 GALEX-discovered star-forming Lyman alpha emitting galaxies (LAEs) at z ~ 0.3. We measure the emission line fluxes from these galaxies by fitting their observed spectra to…

宇宙学与河外天体物理 · 物理学 2015-05-20 Steven L. Finkelstein , Seth H. Cohen , John Moustakas , Sangeeta Malhotra , James E. Rhoads , Casey Papovich

We present a spectroscopically confirmed sample of Lyman alpha emitting galaxies (LAEs) at z ~ 4.5 in the Extended Chandra Deep Field South (ECDFS), which we combine with a sample of z ~ 4.5 LAEs from the Large Area Lyman Alpha (LALA)…

‹ 上一页 1 2 3 10 下一页 ›