The most luminous H α emitters at z ˜ 0.8-2.23 from HiZELS: evolution of AGN and star-forming galaxies

@article{Sobral2016TheML,
  title={The most luminous H $\alpha$ emitters at z ˜ 0.8-2.23 from HiZELS: evolution of AGN and star-forming galaxies},
  author={David Sobral and Saul A. Kohn and Philip N. Best and I. R. Smail and C. M. Harrison and John P Stott and Jo{\~a}o Calhau and Jorryt Matthee},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2016},
  volume={457},
  pages={1739-1752}
}
We use new near-infrared spectroscopic observations to investigate the nature and evolution of the most luminous H\alpha (Ha) emitters at z~0.8-2.23, which evolve strongly in number density over this period, and compare them to more typical Ha emitters. We study 59 luminous Ha emitters with $L_{H\alpha}>L_{H\alpha}^*$, roughly equally split per redshift slice at z~0.8, 1.47 and 2.23 from the HiZELS and CF-HiZELS surveys. We find that, overall, 30$\pm$8% are AGN (80$\pm$30% of these AGN are… Expand
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References

SHOWING 1-10 OF 81 REFERENCES
Nature of Hα selected galaxies at z > 2. I. Main-sequence and dusty star-forming galaxies
We present the results from our narrow-band imaging surveys of Hα emitters (HAEs) at z = 2.2 and z = 2.5 in the Subaru/XMM-Newton Deep survey Field with near-infrared camera MOIRCS on the SubaruExpand
HiZELS: a high-redshift survey of Hα emitters – I. The cosmic star formation rate and clustering at z= 2.23
We present results from a near-infrared narrow-band survey of emission-line galaxies at z = 2.23, using the Wide Field Camera on the United Kingdom Infrared Telescope. The H2S1 narrow-band filter (Expand
Obscured star formation at z= 0.84 with HiZELS: the relationship between star formation rate and Hα or ultraviolet dust extinction★
We compare Hα, ultraviolet (UV) and infrared (IR) indicators of star formation rate (SFR) for a well-defined sample of z = 0.84 emission-line galaxies from the High-. z Emission Line Survey (HiZELS).Expand
HiZELS:a high-redshift survey of Hα emitters - II. the nature of star-forming galaxies at z = 0.84
New results from a large survey of Hα emission-line galaxies at z = 0.84 using the Wide Field Camera on the United Kingdom Infrared Telescope and a custom narrow-band filter in the J band areExpand
A search for clusters at high redshift: IV. Spectroscopy of Hα emitters in a proto-cluster at z = 2.16
Radio galaxy PKS 1138−262 is a massive galaxy at z = 2.16, located in a dense environment. We have found an overdensity of Lyα emitting galaxies in this field, consistent with a proto-clusterExpand
Herschel reveals the obscured star formation in HiZELS Hα emitters at z = 1.47
We describe the far-infrared (far-IR; rest-frame 8–1000-μm) properties of a sample of 443 Hα-selected star-forming galaxies in the Cosmic Evolution Survey (COSMOS) and Ultra Deep Survey (UDS) fieldsExpand
A large Hα survey at z = 2.23, 1.47, 0.84 and 0.40: the 11 Gyr evolution of star-forming galaxies from HiZELS
This paper presents new deep and wide narrow-band surveys undertaken with United Kingdom Infrared Telescope (UKIRT), Subaru and the Very Large Telescope (VLT), a unique combined effort to selectExpand
Hubble Space Telescope Hα imaging of star-forming galaxies at z 1-1.5: evolution in the size and luminosity of giant H II regions
We present Hubble Space Telescope/Wide Field Camera 3 narrow-band imaging of the Hα emission in a sample of eight gravitationally lensed galaxies at z = 1–1.5. The magnification caused by theExpand
GOODS-Herschel: impact of active galactic nuclei and star formation activity on infrared spectral energy distributions at high redshift
We explore the effects of active galactic nuclei (AGNs) and star formation activity on the infrared (0.3-1000 mu m) spectral energy distributions (SEDs) of luminous infrared galaxies from z = 0.5 toExpand
Evolution of the dusty infrared luminosity function from z = 0 to z = 2.3 using observations from Spitzer
Aims. We derive the evolution of the infrared luminosity function (LF) over the last 4/5ths of cosmic time using deep 24 and 70 μm imaging of the GOODS North and South fields. Methods. We use anExpand
...
1
2
3
4
5
...