The ALMA Spectroscopic Survey in the HUDF: A Search for [CII] Emitters at $6\le z\le 8$

Abstract

The ALMA Spectroscopic Survey in the Hubble Ultra Deep Field (ASPECS) Band 6 scan (212-272 GHz) covers potential [CII] emission in galaxies at $6\le z\le 8$ throughout a 2.9 arcmin${}^2$ area. By selecting on known Lyman-$\alpha$ emitters (LAEs) and photometric dropout galaxies in the field, we perform targeted searches down to a 5$\sigma$ [CII] luminosity depth $L_{[\mathrm{CII}]}\sim 2.0\times 10^8$ L${}_{\odot }$, corresponding roughly to star formation rates (SFRs) of $10$-$20$ M${}_{\odot }$ yr${}^{-1}$ when applying a locally calibrated conversion for star-forming galaxies, yielding zero detections. While the majority of galaxies in this sample are characterized by lower SFRs, the resulting upper limits on [CII] luminosity in these sources are consistent with the current literature sample of targeted ALMA observations of $z=6$-$7$ LAEs and Lyman-break galaxies (LBGs), as well as the locally calibrated relations between $L_{[\mathrm{CII}]}$ and SFR -- with the exception of a single [CII]-deficient, UV luminous LBG. We also perform a blind search for [CII]-bright galaxies that may have been missed by optical selections, resulting in an upper limit on the cumulative number density of [CII] sources with $L_{[\mathrm{CII}]}>2.0\times 10^8$ L${}_{\odot }$ ($5\sigma$) to be less than $1.8\times 10^{-4}$ Mpc${}^{-3}$ (90% confidence level). At this luminosity depth and volume coverage, we present an observed evolution of the [CII] luminosity function from $z=6$-$8$ to $z\sim 0$ by comparing the ASPECS measurement to literature results at lower redshift.

arXiv comment16 pages, 6 figures, accepted for publication in ApJ

References in corpus (81)

• Stellar population synthesis at the resolution of 2003
• Galactic Stellar and Substellar Initial Mass Function
• Cosmic Star Formation History
• EAZY: A Fast, Public Photometric Redshift Code
• UV Luminosity Functions at redshifts z~4 to z~10: 10000 Galaxies from HST Legacy Fields
• Cool Gas in High Redshift Galaxies
• An ultra-deep near-infrared spectrum of a compact quiescent galaxy at z=2.2
• The Evolution of the Galaxy Rest-Frame Ultraviolet Luminosity Function Over the First Two Billion Years
• The Abundance of Star-Forming Galaxies in the Redshift Range 8.5 to 12: New Results from the 2012 Hubble Ultra Deep Field Campaign
• The Interstellar Medium In Galaxies Seen A Billion Years After The Big Bang
• The applicability of FIR fine-structure lines as Star Formation Rate tracers over wide ranges of metallicities and galaxy types
• Reddening and Star Formation in Starburst Galaxies
• On the effect of the Cosmic Microwave Background in high-redshift (sub-)millimeter observations
• A deep ALMA image of the Hubble Ultra Deep Field
• Discovery of z~8 Galaxies in the HUDF from ultra-deep WFC3/IR Observations
• The MUSE Hubble Ultra Deep Field Survey: I. Survey description, data reduction and source detection
• The HST eXtreme Deep Field XDF: Combining all ACS and WFC3/IR Data on the HUDF Region into the Deepest Field Ever
• The Spectral Energy Distributions Of z~8 Galaxies From The IRAC Ultra Deep Fields: Emission Lines, Stellar Masses, And Specific Star Formation Rates At 650 Myr
• A Herschel/PACS Far Infrared Line Emission Survey of Local Luminous Infrared Galaxies
• Keck Spectroscopy of Faint 3<z<8 Lyman Break Galaxies:- Evidence for a Declining Fraction of Emission Line Sources In the Redshift Range 6<z<8
• Probing the Dawn of Galaxies at z~9-12: New Constraints from HUDF12/XDF and CANDELS Data
• New observations of z~7 galaxies: evidence for a patchy reionization
• Explaining the [CII]158um Deficit in Luminous Infrared Galaxies - First Results from a Herschel/PACS Study of the GOALS Sample
• Lyman-alpha Emission from a Luminous z=8.68 Galaxy: Implications for Galaxies as Tracers of Cosmic Reionization
• ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: Survey Description
• z~7 Galaxies in the HUDF: First Epoch WFC3/IR Results
• "Big Three Dragons": a z = 7.15 Lyman BreakGalaxy Detected in [OIII] 88 $\mu$m, [CII] 158 $\mu$m, and Dust Continuum with ALMA
• A Spectroscopic Redshift Measurement for a Luminous Lyman Break Galaxy at z=7.730 using Keck/MOSFIRE
• The [C II] emission as a molecular gas mass tracer in galaxies at low and high redshift
• The assembly of "normal" galaxies at z=7 probed by ALMA
• Galaxies at z = 6 - 9 from the WFC3/IR imaging of the HUDF
• Rotation in [CII]-emitting gas in two galaxies at a redshift of 6.8
• The [CII] 158 micron line emission in high-redshift galaxies
• [CII] 158 $\mu$m Emission as a Star Formation Tracer
• Spectroscopic detections of CIII]1909 at z~6-7: A new probe of early star forming galaxies and cosmic reionisation
• On the [CII]-SFR relation in high redshift galaxies
• The changing Lya optical depth in the range 6<z<9 from MOSFIRE spectroscopy of Y-dropouts
• Large Population of ALMA Galaxies at z>6 with Very High [OIII]88um to [CII]158um Flux Ratios: Evidence of Extremely High Ionization Parameter or PDR Deficit?
• The MUSE Hubble Ultra Deep Field Survey: II. Spectroscopic redshifts and comparisons to color selections of high-redshift galaxies
• The ALPINE-ALMA [CII] survey. Little to no evolution in the [CII]-SFR relation over the last 13 Gyr
• The ALMA Spectroscopic Survey in the HUDF: CO luminosity functions and the molecular gas content of galaxies through cosmic history
• Tracing the reionization epoch with ALMA: [CII] emission in z~7 galaxies
• COLDz: Shape of the CO Luminosity Function at High Redshift and the Cold Gas History of the Universe
• The Hubble Legacy Field GOODS-S Photometric Catalog
• Star formation and the interstellar medium in z>6 UV-luminous Lyman-break galaxies
• ALMA uncovers the [CII] emission and warm dust continuum in a z = 8.31 Lyman break galaxy
• Kiloparsec-scale gaseous clumps and star formation at $z=5-7$
• The ALMA Spectroscopic Survey Large Program: The Infrared Excess of z=1.5-10 UV-selected Galaxies and the Implied High-Redshift Star Formation History
• The GREATS H$\beta$+[OIII] Luminosity Function and Galaxy Properties at $\mathbf{z}\sim 8$: Walking the Way of JWST
• [CII] emission in z ~ 6 strongly lensed, star-forming galaxies
• Recovering the systemic redshift of galaxies from their Lyman-alpha line profile
• The ALMA Spectroscopic Survey in the HUDF: CO Excitation and Atomic Carbon in Star-Forming Galaxies at $z=1-3$
• Missing [CII] emission from early galaxies
• A physical model for [CII] line emission from galaxies
• The ALMA Spectroscopic Survey in the HUDF: Multi-band constraints on line luminosity functions and the cosmic density of molecular gas
• ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: Search for [CII] line and dust emission in 6<z<8 galaxies
• The MUSE Hubble Ultra Deep Field Survey VI: The Faint-End of the Lya Luminosity Function at 2.91 < z < 6.64 and Implications for Reionisation
• Inferred Hα Flux as a Star-Formation Rate Indicator at z ~ 4-5: Implications for Dust Properties, Burstiness, and the z = 4-8 Star-Formation-Rate Functions
• ALMA Characterises the Dust Temperature of z ~ 5.5 Star-Forming Galaxies
• ALMA [CII] detection of a redshift 7 lensed galaxy behind RXJ1347.1-1145
• Resolved UV and [CII] structures of luminous galaxies within the epoch of reionisation
• The ALMA Spectroscopic Survey in the HUDF: CO emission lines and 3 mm continuum sources
• The ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: Evolution of the molecular gas in CO-selected galaxies
• Spectroscopic Constraints on UV Metal Line Emission at z~6-9: The Nature of Lyman-alpha Emitting Galaxies in the Reionization-Era
• The ALMA Spectroscopic Survey in the HUDF: Deep 1.2 mm continuum number counts
• The art of modeling CO, [CI], and [CII] in cosmological galaxy formation models
• The Absence of [CII] 158$\mu$m Emission in Spectroscopically-Confirmed Galaxies at $z>8$
• FIR line emission from high redshift galaxies
• An Intensity Mapping Detection of Aggregate CO Line Emission at 3 mm
• The ALMA Spectroscopic Survey in the HUDF: Nature and physical properties of gas-mass selected galaxies using MUSE spectroscopy
• GOODS-ALMA: 1.1 mm galaxy survey - I. Source catalogue and optically dark galaxies
• The Local [CII] 158 um Emission Line Luminosity Function
• The ALPINE-ALMA [C II] Survey: [C II]158micron Emission Line Luminosity Functions at $z\sim 4-6$
• An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field: Identifying candidate z~4.5 [CII] emitters
• Full-Array Noise Performance of Deployment-Grade SuperSpec mm-wave On-Chip Spectrometers
• ALMA Deep Field in SSA22: Blindly Detected CO Emitters and [CII] Emitter Candidates
• Blind millimeter line emitter search using ALMA data toward gravitational lensing clusters
• The ALMA Spectroscopic Survey in the HUDF: Constraining cumulative CO emission at $1\lesssim z\lesssim 4$ with power spectrum analysis of ASPECS LP data from 84 to 115 GHz
• The Design of The CCAT-prime Epoch of Reionization Spectrometer Instrument
• The ALMA Spectroscopic Survey in the HUDF: Constraining the Molecular Content at $\log (M_{\ast }/M_{\odot })\sim 9.5$ with CO stacking of MUSE detected $z\sim 1.5$ Galaxies
• The ALPINE-ALMA [C II] survey: the luminosity function of serendipitous [C II] line emitters at $z\sim 5$

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