Ian Smail
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View article: KURVS: chemical properties from multiple strong line calibrations for star-forming galaxies at <i>z</i> ~ 1.5
KURVS: chemical properties from multiple strong line calibrations for star-forming galaxies at <i>z</i> ~ 1.5 Open
Gas-phase oxygen abundance (metallicity) properties can be constrained through emission line analyses, and are of great importance to investigate galaxy evolution histories. We present an analysis of the integrated and spatially resolved r…
View article: ALMA Lensing Cluster Survey: Physical Characterization of Near-infrared-dark Intrinsically Faint ALMA Sources at <i>z</i> = 2–4
ALMA Lensing Cluster Survey: Physical Characterization of Near-infrared-dark Intrinsically Faint ALMA Sources at <i>z</i> = 2–4 Open
We present results from Atacama Large Millimeter/submillimeter Array (ALMA) spectral line-scan observations at 3 mm and 2 mm bands of three near-infrared-dark (NIR-dark) galaxies behind two massive lensing clusters MACS J0417.5-1154 and RX…
View article: CO(1–0) imaging reveals 10-kiloparsec molecular gas reservoirs around star-forming galaxies at high redshift
CO(1–0) imaging reveals 10-kiloparsec molecular gas reservoirs around star-forming galaxies at high redshift Open
Massive star-forming galaxies at high redshift require a supply of molecular gas from their gas reservoirs that is replenished by infall from the surrounding circumgalactic medium to sustain their immense star formation rates. Our knowledg…
View article: A Comparative Study of the Ground State Transitions of CO and C <scp>i</scp> as Molecular Gas Tracers at High Redshift
A Comparative Study of the Ground State Transitions of CO and C <span>i</span> as Molecular Gas Tracers at High Redshift Open
The CO(1–0) and [C i ](1–0) emission lines are well-established tracers of cold molecular gas mass in local galaxies. At high redshift, where the interstellar medium is likely to be denser, there have been limited direct comparisons of bot…
View article: The <i>JWST</i> Emission-Line Survey: extending rest-optical narrow-band emission-line selection into the Epoch of Reionization
The <i>JWST</i> Emission-Line Survey: extending rest-optical narrow-band emission-line selection into the Epoch of Reionization Open
We present the JWST Emission-Line Survey (JELS), a JWST imaging programme exploiting the wavelength coverage and sensitivity of the Near-Infrared Camera (NIRCam) to extend narrow-band rest-optical emission-line selection into the Epoch of …
View article: Erratum: ADF22-WEB: A giant barred spiral starburst galaxy in the <i>z</i> = 3.1 SSA22 protocluster core
Erratum: ADF22-WEB: A giant barred spiral starburst galaxy in the <i>z</i> = 3.1 SSA22 protocluster core Open
View article: The VLA Frontier Fields Survey: A 6GHz High-resolution Radio Survey of Abell 2744
The VLA Frontier Fields Survey: A 6GHz High-resolution Radio Survey of Abell 2744 Open
We present a 6GHz radio continuum image of the galaxy cluster Abell 2744 ($z = 0.307$) obtained with the Karl G. Jansky Very Large Array (VLA) as part of the VLA Frontier Fields program, whose goal is to explore the radio continuum emissio…
View article: The <i>JWST</i> Emission Line Survey (JELS): an untargeted search for H α emission line galaxies at <i>z</i> &gt; 6 and their physical properties
The <i>JWST</i> Emission Line Survey (JELS): an untargeted search for H α emission line galaxies at <i>z</i> > 6 and their physical properties Open
We present the first results of the JWST Emission Line Survey (JELS). Utilizing the first NIRCam narrow-band imaging at 4.7 $\mu$m, over 63 arcmin$^{2}$ in the PRIMER/COSMOS field, we have identified 609 emission line galaxy candidates. Fr…
View article: A 100 Mpc<sup>2</sup> Structure Traced by Hyperluminous Galaxies around a Massive <i>z</i> = 2.85 Protocluster
A 100 Mpc<sup>2</sup> Structure Traced by Hyperluminous Galaxies around a Massive <i>z</i> = 2.85 Protocluster Open
We present wide-field mapping at 850 μ m and 450 μ m of the z = 2.85 protocluster in the HS 1549+19 field using the Submillimetre Common-User Bolometer Array 2. Spectroscopic follow-up of 18 bright sources selected at 850 μ m, using the No…
View article: ADF22-WEB: A giant barred spiral starburst galaxy in the <i>z</i> = 3.1 SSA22 protocluster core
ADF22-WEB: A giant barred spiral starburst galaxy in the <i>z</i> = 3.1 SSA22 protocluster core Open
In the present-day universe, the most massive galaxies are ellipticals located in the cores of galaxy clusters, harboring the heaviest super-massive black holes (SMBHs). However, the mechanisms that drive the early growth phase and subsequ…
View article: The MUSE Ultra Deep Field (MUDF) VII. Probing high-redshift gas structures in the surroundings of ALMA-identified massive dusty galaxies
The MUSE Ultra Deep Field (MUDF) VII. Probing high-redshift gas structures in the surroundings of ALMA-identified massive dusty galaxies Open
We present new ALMA continuum and spectral observations of the MUSE Ultra Deep Field (MUDF), a $2 2$ arcmin^2 region with ultradeep multiwavelength imaging and spectroscopy hosting two bright z≈ 3.22 quasars used to study intervening gas s…
View article: ADF22-WEB: ALMA and JWST (sub)kpc-scale views of dusty star-forming galaxies in a $z\approx$3 proto-cluster
ADF22-WEB: ALMA and JWST (sub)kpc-scale views of dusty star-forming galaxies in a $z\approx$3 proto-cluster Open
We present a morphological analysis of ALMA and JWST NIRCam images of nine dusty star-forming galaxies (DSFGs) at zspec=3.09, all embedded within the cosmic web filaments at the SSA22 proto-cluster core. The ALMA 870um and 1.1mm images are…
View article: Primordial Rotating Disk Composed of ≥15 Star Forming Clumps at Cosmic Dawn
Primordial Rotating Disk Composed of ≥15 Star Forming Clumps at Cosmic Dawn Open
Early galaxy formation, initiated by the dark matter and gas assembly, evolves through frequent mergers and feedback processes into dynamically hot, chaotic structures1. In contrast, dynamically cold, smooth rotating disks have …
View article: ALMA/SCUBA-2 COSMOS Survey: Properties of X-Ray- and SED-selected Active Galactic Nuclei in Bright Submillimeter Galaxies
ALMA/SCUBA-2 COSMOS Survey: Properties of X-Ray- and SED-selected Active Galactic Nuclei in Bright Submillimeter Galaxies Open
We investigate the properties of active galactic nuclei (AGNs) in the brightest submillimeter galaxies (SMGs) in the COSMOS field. We utilize the bright sample of the ALMA/SCUBA-2 COSMOS Survey (AS2COSMOS), which consists of 260 SMGs with …
View article: Beyond MACS: physical properties of extremely X-ray luminous clusters at <i>z</i> &gt; 0.5
Beyond MACS: physical properties of extremely X-ray luminous clusters at <i>z</i> > 0.5 Open
We present a sample of over 100 highly X-ray luminous galaxy clusters ($L_{\rm X, 0.1-2.4\, keV} \sim 10^{45}$ erg s$^{-1}$) at $z\sim 0.5$–0.9, discovered by the extended Massive Cluster Survey (eMACS) in ROSAT All-Sky Survey (RASS) data.…
View article: The onset of bar formation in a massive galaxy at <i>z</i> ∼ 3.8
The onset of bar formation in a massive galaxy at <i>z</i> ∼ 3.8 Open
We examine the morphological and kinematical properties of SPT-2147, a strongly lensed, massive, dusty, star-forming galaxy at $z = 3.762$. Combining data from JWST, Hubble Space Telescope, and ALMA, we study the galaxy’s stellar emission,…
View article: ALESS-JWST: Joint (Sub)kiloparsec JWST and ALMA Imaging of <i>z</i> ~ 3 Submillimeter Galaxies Reveals Heavily Obscured Bulge Formation Events
ALESS-JWST: Joint (Sub)kiloparsec JWST and ALMA Imaging of <i>z</i> ~ 3 Submillimeter Galaxies Reveals Heavily Obscured Bulge Formation Events Open
We present JWST NIRCam imaging targeting 13 z ~ 3 infrared-luminous ( L IR ∼ 5 × 10 12 L ⊙ ) galaxies from the ALESS survey with uniquely deep, high-resolution (0 08–0 16) Atacama Large Millimeter/submillimeter Array 870 μ m im…
View article: The kinematics of massive high-redshift dusty star-forming galaxies
The kinematics of massive high-redshift dusty star-forming galaxies Open
We present a new method for modelling the kinematics of galaxies from interferometric observations by performing the optimization of the kinematic model parameters directly in visibility space instead of the conventional approach of fittin…
View article: ALMA/SCUBA-2 COSMOS Survey: Properties of X-ray- and SED-selected AGNs in Bright Submillimeter Galaxies
ALMA/SCUBA-2 COSMOS Survey: Properties of X-ray- and SED-selected AGNs in Bright Submillimeter Galaxies Open
We investigate the properties of active galactic nuclei (AGNs) in the brightest submillimeter galaxies (SMGs) in the COSMOS field. We utilize the bright sample of ALMA/SCUBA-2 COSMOS Survey (AS2COSMOS), which consists of 260 SMGs with $S_{…
View article: ALMA Lensing Cluster Survey: Deep 1.2 mm Number Counts and Infrared Luminosity Functions at z ≃ 1–8
ALMA Lensing Cluster Survey: Deep 1.2 mm Number Counts and Infrared Luminosity Functions at z ≃ 1–8 Open
We present a statistical study of 180 dust continuum sources identified in 33 massive cluster fields by the Atacama Large Millimeter/submillimeter Array Lensing Cluster Survey (ALCS) over a total of 133 arcmin 2 area, homogeneously observe…
View article: The properties of the interstellar medium in dusty star-forming galaxies at <i>z</i> ∼ 2–4: the shape of the CO spectral line energy distributions
The properties of the interstellar medium in dusty star-forming galaxies at <i>z</i> ∼ 2–4: the shape of the CO spectral line energy distributions Open
The molecular gas in the interstellar medium (ISM) of star-forming galaxy populations exhibits diverse physical properties. We investigate the $^{12}$CO excitation of 12 dusty luminous star-forming galaxies at $z \sim$ 2–4 by combining obs…
View article: The properties of the interstellar medium in dusty, star-forming galaxies at $z \sim 2-4$: The shape of the CO spectral line energy distributions
The properties of the interstellar medium in dusty, star-forming galaxies at $z \sim 2-4$: The shape of the CO spectral line energy distributions Open
The molecular gas in the interstellar medium (ISM) of star-forming galaxy populations exhibits diverse physical properties. We investigate the $^{12}$CO excitation of twelve dusty, luminous star-forming galaxies at $z \sim 2-4$ by combinin…
View article: CO(1--0) imaging reveals 10-kiloparsec molecular gas reservoirs around star-forming galaxies at high redshift
CO(1--0) imaging reveals 10-kiloparsec molecular gas reservoirs around star-forming galaxies at high redshift Open
Massive, intensely star-forming galaxies at high redshift require a supply of molecular gas from their gas reservoirs, replenished by infall from the surrounding circumgalactic medium, to sustain their immense star-formation rates. However…
View article: The JWST Emission Line Survey (JELS): An untargeted search for H$α$ emission line galaxies at $z > 6$ and their physical properties
The JWST Emission Line Survey (JELS): An untargeted search for H$α$ emission line galaxies at $z > 6$ and their physical properties Open
We present the first results of the JWST Emission Line Survey (JELS). Utilising the first NIRCam narrow-band imaging at 4.7$μ$m, over 63 arcmin$^{2}$ in the PRIMER/COSMOS field, we identified 609 emission line galaxy candidates. From these…
View article: The MUSE Ultra Deep Field (MUDF) VII. Probing high-redshift gas structures in the surroundings of ALMA-identified massive dusty galaxies
The MUSE Ultra Deep Field (MUDF) VII. Probing high-redshift gas structures in the surroundings of ALMA-identified massive dusty galaxies Open
We present new ALMA continuum and spectral observations of the MUSE Ultra Deep Field (MUDF), a $2\times 2$ arcmin$^2$ region with ultradeep multiwavelength imaging and spectroscopy hosting two bright $z\approx 3.22$ quasars used to study i…
View article: The structure of massive star-forming galaxies from JWST and ALMA: Dusty, high-redshift disc galaxies
The structure of massive star-forming galaxies from JWST and ALMA: Dusty, high-redshift disc galaxies Open
We present an analysis of the JWST NIRCam and MIRI morphological and structural properties of 80 massive (log 10 ( M * [M ⊙ ]) = 11.2 ± 0.1) dusty star-forming galaxies at z = 2.7 −0.7 +1.2 , identified as sub-millimetre galaxies (SMGs) by…
View article: SCUBA-2 Ultra Deep Imaging EAO Survey (STUDIES). V. Confusion-limited Submillimeter Galaxy Number Counts at 450 μm and Data Release for the COSMOS Field
SCUBA-2 Ultra Deep Imaging EAO Survey (STUDIES). V. Confusion-limited Submillimeter Galaxy Number Counts at 450 μm and Data Release for the COSMOS Field Open
We present confusion-limited SCUBA-2 450 μ m observations in the COSMOS-CANDELS region as part of the James Clerk Maxwell Telescope Large Program SCUBA-2 Ultra Deep Imaging EAO Survey. Our maps at 450 and 850 μ m cover an area of 450 arcmi…
View article: ALESS-JWST: Joint (sub-)kiloparsec JWST and ALMA imaging of $z\sim3$ submillimeter galaxies reveals heavily obscured bulge formation events
ALESS-JWST: Joint (sub-)kiloparsec JWST and ALMA imaging of $z\sim3$ submillimeter galaxies reveals heavily obscured bulge formation events Open
We present JWST NIRCam imaging targeting 13 $z\sim3$ infrared-luminous ($L_{\rm IR}\sim5\times10^{12}L_{\odot}$) galaxies from the ALESS survey with uniquely deep, high-resolution (0.08$''$$-$0.16$''$) ALMA 870$μ$m imaging. The 2.0$-$4.4$μ…
View article: MeerKAT observations of starburst galaxies and AGNs within the core of XMMXCS J2215.9-1738 at $z$ = 1.46
MeerKAT observations of starburst galaxies and AGNs within the core of XMMXCS J2215.9-1738 at $z$ = 1.46 Open
We present the first detailed radio study of the galaxy cluster XMMXCS J2215.9-1738 at $z$ = 1.46 using MeerKAT $L$-band (1.3 GHz) observations. We combine our radio observation with archival optical and infrared data to investigate the st…
View article: MeerKAT observations of starburst galaxies and AGNs within the core of XMMXCS J2215.9−1738 at <i>z</i> = 1.46
MeerKAT observations of starburst galaxies and AGNs within the core of XMMXCS J2215.9−1738 at <i>z</i> = 1.46 Open
We present the first detailed radio study of the galaxy cluster XMMXCS J2215.9−1738 at z = 1.46 using MeerKAT L-band (1.3 GHz) observations. We combine our radio observation with archival optical and infrared data to investigate the star f…