The z = 9-10 galaxy population in the Hubble Frontier Fields and CLASH surveys: the z = 9 luminosity function and further evidence for a smooth decline in ultraviolet luminosity density at z≥ 8

By D. McLeod, R. McLure, J. Dunlop. 2016

160 citations recorded by the source corpus.

We present the results of a search for z=9-10 galaxies within the first 8 pointings of the Hubble Frontier Fields (HFF) (4 clusters plus 4 parallel fields) and 20 cluster fields from the CLASH survey. Combined with our previous analysis of the Hubble Ultra-Deep field (HUDF), we have now completed a search for z=9-10 galaxies over ~130 sq. arcmin, across 29 HST WFC3/IR pointings. As in our recent study of the first two HFF fields, we confine our primary search for high-redshift candidates in the HFF imaging to the uniformly deep (i.e. sigma_160>30 AB mag in 0.5-arcsec diameter apertures), relatively low magnification regions. In the CLASH fields our search was confined to uniformly deep regions where sigma_160>28.8 AB mag. Our SED fitting analysis unveils a sample of 33 galaxy candidates at z_phot>=8.4, five of which have primary photometric redshift solutions in the range 9.6 =8. We conclude that the data continue to support a smooth decline in rho_UV over the redshift interval 6<z<10, in agreement with simple models of early galaxy evolution driven by the growth in the underlying dark matter halo mass function.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/46f123b1019dad3945e9d197cc756b5256381e71

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Citations in the corpus

The Complete CEERS Early Universe Galaxy Sample: A Surprisingly Slow Evolution of the Space Density of Bright Galaxies at z ∼ 8.5–14.5 (2023, background): “…results differed at z > 8, with some advocating for continued evolution with the same declining slope from lower redshifts ( e.g., Finkelstein 2016; McLeod et al. 2016 ) , while others claimed evidence of an accelerated decline toward higher redshifts ( e.g., Oesch et al. 2018; Bouwens et al. 2019…”
CEERS Key Paper. I. An Early Look into the First 500 Myr of Galaxy Formation with JWST (2022, background): “…Galaxy survey (Trenti et al. 2011) have uncovered thousands of galaxies at z> 6 (e.g., Bouwens et al. 2015, 2022a; Finkelstein et al. 2015, 2022a; Ishigaki et al. 2015; McLeod et al. 2016; Morishita et al. 2018; Oesch et al. 2018; Bridge et al. 2019; Rojas-Ruiz et al. 2020; Bagley et al. 2022a).”
Great Optically Luminous Dropout Research Using Subaru HSC (GOLDRUSH). I. UV Luminosity Functions at $z \sim 4-7$ Derived with the Half-Million Dropouts on the 100 deg$^2$ Sky (2017, background): “…sources with the Hubble Frontier Fields (HFF) project, which takes advantage of the gravitational lens magnification effects of galaxy clusters (Ishigaki et al. 2015; Atek et al. 2015; Kawamata et al. 2016; Castellano et al. 2016; McLeod et al. 2016; Livermore et al. 2017; Ishigaki et al. 2017).”
The Dearth of z ∼ 10 Galaxies in All HST Legacy Fields—The Rapid Evolution of the Galaxy Population in the First 500 Myr (2017, methodology): “When extrapolating this to z ∼ 10, our measurement lies a factor 5-6× below this trend, similar to our earlier findings, but in contrast to some recent claims by other authors (e.g., McLeod et al. 2016).”
Consistent modelling of the meta-galactic UV background and the thermal/ionization history of the intergalactic medium (2018, background): “(15) of Madau & Dickinson (2014), and reproduces recent results in the range 4 ∼< z ∼< 10 (Bowler et al. 2015; Finkelstein et al. 2015; Ishigaki et al. 2015; McLeod et al. 2015; Oesch et al. 2015; McLeod et al. 2016).”
The origin of spin in binary black holes (2019, methodology): “The SFR formula we adopt is computed from UV and infrared surveys and is an updated version of Madau & Dickinson (2014) that better reproduces recent results at high redshifts 4 ≤ z ≤ 10 (Bowler et al. 2015; Finkelstein et al. 2015; Ishigaki et al. 2015; McLeod et al. 2015, 2016; Oesch et al. 2015).”
Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). V. Quasar Luminosity Function and Contribution to Cosmic Reionization at z = 6 (2018, background): “A large number of high-z galaxies and galaxy candidates have been identified up to z ∼ 10 and beyond, and the evolution of the galaxy luminosity function (LF) has been intensively studied (e.g., Bouwens et al. 2011, 2015; McLeod et al. 2016; Oesch et al. 2016, 2018; Ishigaki et al. 2018).”
The evolution of the galaxy UV luminosity function at redshifts z ≃ 8 – 15 from deep JWST and ground-based near-infrared imaging (2022, methodology): “…with the Hubble Space Telescope (HST) and Spitzer have revealed galaxy evolution extending out to redshifts 𝑧 ' 10 (e.g. Ellis et al. 2013; McLure et al. 2013; Oesch et al. 2014, 2018; Bowler et al. 2014, 2015, 2020; Finkelstein et al. 2015; McLeod et al. 2015, 2016; Bouwens et al. 2021, 2022).”
Early Results from GLASS-JWST. III. Galaxy Candidates at z ∼9–15 (2022, background): “…progessively smaller samples of increasingly bright objects at higher redshifts up to z∼9– 11 (Zheng et al. 2012; Oesch et al. 2013; Coe et al. 2013; McLeod et al. 2016; Hashimoto et al. 2018; Ishigaki et al. 2018; Morishita et al. 2018; Rojas-Ruiz et al. 2020; Bouwens et al. 2021;…”
A Long Time Ago in a Galaxy Far, Far Away: A Candidate z ∼ 12 Galaxy in Early JWST CEERS Imaging (2022, result): “…in the literature were mixed, with some studies finding evidence for an accelerated decline in the SFRD (e.g., Oesch et al. 2018; Bouwens et al. 2021), while others found that observations supported a continued smooth decline (e.g., Coe et al. 2013; McLeod et al. 2016; Finkelstein & Bagley 2022).”
Radiation Backgrounds at Cosmic Dawn: X-Rays from Compact Binaries (2016, unknown): “…in Figure 1, this is an updated version of the formula given in Equation (15) of Madau & Dickinson (2014) that better reproduces a number of recent 4 ∼ < z ∼< 10 results (Bowler et al. 2015; Finkelstein et al. 2015; Ishigaki et al. 2015; McLeod et al. 2015; Oesch et al. 2015; McLeod et al. 2016).”
Full-data Results of Hubble Frontier Fields: UV Luminosity Functions at z ∼ 6–10 and a Consistent Picture of Cosmic Reionization (2017, methodology): “Our results support a non-accelerated decline of ρUV toward high redshifts in the case of Mtrunc = −15.0 (see also McLeod et al. 2016).”
The Universe Is Reionizing at z ∼ 7: Bayesian Inference of the IGM Neutral Fraction Using Lyα Emission from Galaxies (2017, methodology): “…draw a realistic sample of LBGs at z ∼ 7 from the Mason et al. (2015) UV luminosity function model (which is consistent with all observations, including new deep data from the Hubble Frontier Fields at z∼> 7 e.g., Atek et al. 2015b; McLeod et al. 2016; Livermore et al. 2017; Bouwens et al. 2017a).”
RELICS: Reionization Lensing Cluster Survey (2019, background): “Indeed, the Frontier Fields yielded similar total numbers of lensed and blank field high-redshift galaxies, altogether 453 at z ∼ 6 − 9 from one analysis (Kawamata et al. 2018), plus a few z ∼ 10 candidates (Zitrin et al. 2014; Infante et al. 2015; McLeod et al. 2016; Oesch et al. 2018).”