Revisited cold gas content with atomic carbon [C I] in z=2.5 protocluster galaxies

Abstract

We revisit the cold gas contents of galaxies in a protocluster at z=2.49 using the lowest neutral atomic carbon transition [CI]${}^3$P${}_1$-${}^3$P${}_0$ from Atacama Large Millimeter/submillimeter Array observations. We aim to test if the same gas mass calibration applied in field galaxies can be applied to protocluster galaxies. Five galaxies out of sixteen targeted galaxies are detected in the [CI] line, and these are all previously detected in CO(3-2) and CO(4-3) and three in 1.1 mm dust continuum. We investigate the line luminosity relations between CO and [CI] in the protocluster and compare them with other previous studies. We then compare the gas mass based on three gas tracers of [CI], CO(3-2), and dust if at least one of the last two tracers are available. Using the calibration adopted for field main-sequence galaxies, the [CI]-based gas measurements are lower than or comparable to the CO-based gas measurements by -0.35 dex at the lowest with the mean deviation of -0.14 dex. The differences between [CI]- and the dust- based measurements are relatively mild by up to 0.16 dex with the mean difference of 0.02 dex. Taking these all together with calibration uncertainties, with the [CI] line, we reconfirm our previous findings that the mean gas fraction is comparable to field galaxies for a stellar-mass range of $\log (M_{\mathrm{star}}/M_{\odot }=[10.6,11.3]$. However, at least for these secure five detections, the depletion time scale decreases more rapidly with stellar mass than field galaxies that might be related to earlier quenching in dense environments.

arXiv commentaccepted for publication in ApJ

References in corpus (68)

• Astropy: A Community Python Package for Astronomy
• Galactic Stellar and Substellar Initial Mass Function
• Star Formation in Galaxies Along the Hubble Sequence
• The CO-to-H2 Conversion Factor
• A Highly Consistent Framework for the Evolution of the Star-Forming "Main Sequence" from z~0-6
• The Star Formation Rate and Dense Molecular Gas in Galaxies
• Far Infrared and Submillimeter Emission from Galactic and Extragalactic Photo-Dissociation Regions
• Gas-to-Dust mass ratios in local galaxies over a 2 dex metallicity range
• PHIBSS: Unified Scaling Relations of Gas Depletion Time and Molecular Gas Fractions
• From rings to bulges: evidence for rapid secular galaxy evolution at z~2 from integral field spectroscopy in the SINS survey
• Combined CO & Dust Scaling Relations of Depletion Time and Molecular Gas Fractions with Cosmic Time, Specific Star Formation Rate and Stellar Mass
• Strangulation as the primary mechanism for shutting down star formation in galaxies
• Compaction and Quenching of High-z Galaxies in Cosmological Simulations: Blue and Red Nuggets
• ISM masses and the star formation law at Z = 1 to 6 // ALMA observations of dust continuum in 145 galaxies in the COSMOS survey field
• The Evolution of the Star-forming Interstellar Medium across Cosmic Time
• On the effect of the Cosmic Microwave Background in high-redshift (sub-)millimeter observations
• The Confinement of Star-Forming Galaxies into a Main Sequence through Episodes of Gas Compaction, Depletion, and Replenishment
• Connecting Dense Gas Tracers of Star Formation in our Galaxy to High-z Star Formation
• Evolution of Interstellar Medium, Star Formation, and Accretion at High Redshift
• High-redshift clumpy discs and bulges in cosmological simulations
• CO excitation of normal star forming galaxies out to z=1.5 as regulated by the properties of their interstellar medium
• Where is the Neutral Atomic Gas in Hickson Groups?
• The CI lines as tracers of molecular gas, and their prospects at high redshifts
• Gas and Dust in the Cloverleaf Quasar at Redshift 2.5
• Short-lived star-forming giant clumps in cosmological simulations of z~2 disks
• Star formation relations and CO SLEDs across the J-ladder and redshift
• Cold gas properties of the Herschel Reference Survey. III. Molecular gas stripping in cluster galaxies
• A Survey of Atomic Carbon at High Redshift
• Sub-kpc ALMA imaging of compact star-forming galaxies at z~2.5: revealing the formation of dense galactic cores in the progenitors of compact quiescent galaxies
• Low, Milky-Way like, Molecular Gas Excitation of Massive Disk Galaxies at z~1.5
• Ram pressure feeding super-massive black holes
• The Properties of the Interstellar Medium within a Star-Forming Galaxy at z=2.3
• The Rest-Frame Submillimeter Spectrum of High-Redshift, Dusty, Star-Forming Galaxies
• Automated Mining of the ALMA Archive in the COSMOS Field (A3COSMOS): II. Cold Molecular Gas Evolution out to Redshift 6
• Molecular hydrogen deficiency in HI-poor galaxies and its implications for star formation
• Large scale galactic turbulence: can self-gravity drive the observed HI velocity dispersions?
• Cosmic-ray induced destruction of CO in star-forming galaxies
• Enhanced Dense Gas Fraction in Ultra-Luminous Infrared Galaxies
• Gas stripping in galaxy groups - the case of the starburst spiral NGC 2276
• Observations and modelling of a clumpy galaxy at z=1.6: Spectroscopic clues to the origin and evolution of chain galaxies
• A Survey of Atomic Carbon [C I] in High-redshift Main-Sequence Galaxies
• Assessing Radiation Pressure as a Feedback Mechanism in Star-Forming Galaxies
• The ALMA Spectroscopic Survey in the HUDF: CO Excitation and Atomic Carbon in Star-Forming Galaxies at $z=1-3$
• Ram-pressure stripped molecular gas in the Virgo spiral galaxy NGC 4522
• Atomic carbon at redshift ~2.5
• Jekyll & Hyde: quiescence and extreme obscuration in a pair of massive galaxies 1.5 Gyr after the Big Bang
• Is atomic carbon a good tracer of molecular gas in metal-poor galaxies?
• Evolution in the H I Gas Content of Galaxy Groups: Pre-Processing and Mass Assembly in the Current Epoch
• Using [CI] to probe the Interstellar Medium in z~2.5 Sub-Millimeter Galaxies
• Atomic Carbon in Galaxies
• The ALMA Fornax Cluster Survey I: stirring and stripping of the molecular gas in cluster galaxies
• The properties of the interstellar medium of galaxies across time as traced by the neutral atomic carbon [CI]
• ALMA reveals starburst-like interstellar medium conditions in a compact star-forming galaxy at z ~ 2 using [CI] and CO
• Discovery of an Excess of Halpha Emitters around 4C 23.56 at z=2.48
• VLA-ALMA Spectroscopic Survey in the Hubble Ultra Deep Field (VLASPECS): Total Cold Gas Masses and CO Line Ratios for z=2-3 "Main Sequence" Galaxies
• Neutral Carbon Emission in luminous infrared galaxies The \CI\ Lines as Total Molecular Gas Tracers
• AST/RO Observations of Atomic Carbon near the Galactic Center
• Environmental impacts on molecular gas in protocluster galaxies at z~2
• High Resolution Imaging of PHIBSS z~2 Main Sequence Galaxies in CO J=1-0
• A Study of CO Emission in High Redshift QSOs Using the Owens Valley Millimeter Array
• Molecular tracers of PDR-dominated galaxies
• Large-scale mapping observations of the CI(3P1-3P0) and CO(J=3-2) lines toward the Orion A molecular cloud
• A radio-to-mm census of star-forming galaxies in protocluster 4C23.56 at z=2.5 : Gas mass and its fraction revealed with ALMA
• Resolved neutral carbon emission in nearby galaxies: [CI] Lines as Total Molecular Gas Tracers
• Modeling the Atomic-to-Molecular Transition and Chemical Distributions of Turbulent Star-Forming Clouds
• The relationship between dust and [CI] at z=1 and beyond
• Molecular and atomic line surveys of galaxies II: unbiased estimates of their star formation mode
• A Radio-to-millimeter Census of Star-forming Galaxies in Protocluster 4C~23.56 at z = 2.5 : Global and local gas kinematics

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• CI and CO in Nearby Spiral Galaxies -- I. Line Ratio and Abundance Variations at ~ 200 pc Scales
• The relationship between cluster environment and molecular gas content of star-forming galaxies in the EAGLE simulation
• Revealing the hidden cosmic feast: A z=4.3 galaxy group hosting two optically dark, efficiently star-forming galaxies
• Deep kiloparsec view of the molecular gas in a massive star-forming galaxy at cosmic noon
• Characterizing CO Emitters in the SSA22-AzTEC26 Field
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