Multi-wavelength lens reconstruction of a $\text{Planck}$ $\&$ $\text{Herschel}$-detected star-bursting galaxy

Abstract

We present a source-plane reconstruction of a $Herschel$ and $Planck$-detected gravitationally-lensed dusty star-forming galaxy (DSFG) at $z=1.68$ using {\it Hubble}, Sub-millimeter Array (SMA), and Keck observations. The background sub-millimeter galaxy (SMG) is strongly lensed by a foreground galaxy cluster at $z=0.997$ and appears as an arc of length $\sim 15^{\prime \prime }$ in the optical images. The continuum dust emission, as seen by SMA, is limited to a single knot within this arc. We present a lens model with source plane reconstructions at several wavelengths to show the difference in magnification between the stars and dust, and highlight the importance of a multi-wavelength lens models for studies involving lensed DSFGs. We estimate the physical properties of the galaxy by fitting the flux densities to model SEDs leading to a magnification-corrected star formation rate of $390\pm 60$ M${}_{\odot }$ yr${}^{-1}$ and a stellar mass of $1.1\pm 0.4\times 10^{11}$ M${}_{\odot }$. These values are consistent with high-redshift massive galaxies that have formed most of their stars already. The estimated gas-to-baryon fraction, molecular gas surface density, and SFR surface density have values of $0.43\pm 0.13$, $350\pm 200$ M${}_{\odot }$ pc${}^{-2}$, and $\sim 12\pm 7$M${}_{\odot }$ yr${}^{-1}$ kpc${}^{-2}$, respectively. The ratio of star formation rate surface density to molecular gas surface density puts this among the most star-forming systems, similar to other measured SMGs and local ULIRGS.

arXiv comment11 pages, 11 figures, ApJ accepted for publication

References in corpus (63)

• Galactic Stellar and Substellar Initial Mass Function
• The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance
• Star Formation in Galaxies Along the Hubble Sequence
• The UKIRT Infrared Deep Sky Survey (UKIDSS)
• The Photodetector Array Camera and Spectrometer (PACS) on the Herschel Space Observatory
• The Herschel-SPIRE instrument and its in-flight performance
• The epochs of early-type galaxy formation as a function of environment
• The reversal of the star formation-density relation in the distant universe
• Multiwavelength study of massive galaxies at z~2. I. Star formation and galaxy growth
• A Highly Consistent Framework for the Evolution of the Star-Forming "Main Sequence" from z~0-6
• A simple model to interpret the ultraviolet, optical and infrared emission from galaxies
• A Redshift Survey of the Submillimeter Galaxy Population
• High molecular gas fractions in normal massive star forming galaxies in the young Universe
• PHIBSS: molecular gas content and scaling relations in z~1-3 normal star forming galaxies
• Infrared luminosity functions from the Chandra Deep Field South : the Spitzer view on the history of dusty star formation at 0<z<1
• Submillimeter Galaxies at z~2: Evidence for Major Mergers & Constraints on Lifetimes, IMF and CO-H2 Conversion Factor
• A Bayesian approach to strong lensing modelling of galaxy clusters
• The Herschel ATLAS
• SCUBA-2: The 10000 pixel bolometer camera on the James Clerk Maxwell Telescope
• Planck Early Results: The Planck mission
• A survey of molecular gas in luminous sub-millimetre galaxies
• An ALMA survey of Sub-millimeter Galaxies in the Extended Chandra Deep Field South: Physical properties derived from ultraviolet-to-radio modelling
• Hubble Space Telescope Observations of the Lensing Cluster Abell 2218
• The Detection of a Population of Submillimeter-Bright, Strongly-Lensed Galaxies
• The Red-Sequence Cluster Survey I: The Survey and Cluster Catalogs for Patches RCS0926+37 and RCS1327+29
• An ALMA Survey of Submillimeter Galaxies in the Extended Chandra Deep Field South: The Redshift Distribution and Evolution of Submillimeter Galaxies
• The Canada-UK Deep Sub-Millimeter Survey II: First identifications, redshifts and implications for galaxy evolution
• Tracing the molecular gas in distant submillimetre galaxies via CO(1-0) imaging with the EVLA
• The Evolution of ISM Mass Probed by Dust Emission -- ALMA Observations at z = 0.3 to 2
• The far-infrared/radio correlation as probed by Herschel
• Astrophysical and Cosmological Information from Large-scale sub-mm Surveys of Extragalactic Sources
• Cosmic evolution of submillimeter galaxies and their contribution to stellar mass assembly
• Gravitational Lens Models Based on Submillimeter Array Imaging of Herschel-selected Strongly Lensed Sub-millimeter Galaxies at z>1.5
• Evidence for a clumpy, rotating gas disk in a submillimeter galaxy at z=4
• The Stellar Mass Content of Submillimeter-Selected Galaxies
• Herschel-ATLAS Galaxy Counts and High Redshift Luminosity Functions: The Formation of Massive Early Type Galaxies
• The stellar masses and specific star-formation rates of submillimetre galaxies
• HerMES: Candidate Gravitationally Lensed Galaxies and Lensing Statistics at Submillimeter Wavelengths
• Extended Cold Molecular Gas Reservoirs in z~3.4 Submillimeter Galaxies
• The Herschel census of infrared SEDs through cosmic time
• The rapid assembly of an elliptical galaxy of 400 billion solar masses at a redshift of 2.3
• The MOSDEF Survey: Dissecting the star-formation rate vs. stellar mass relation using H$\alpha$ and H$\beta$ emission lines at z ~ 2
• The Slitless Spectroscopy Data Extraction Software aXe
• Blind detections of CO J = 1--0 in 11 H-ATLAS galaxies at z = 2.1--3.5 with the GBT/Zpectrometer
• The Incidence of Strong-Lensing Clusters in the Red-Sequence Cluster Survey
• The Physical Scale of the Far-Infrared Emission in the Most Luminous Submillimeter Galaxies
• Should we believe the results of UV-mm galaxy SED modelling?
• Herschel-ATLAS: Dust temperature and redshift distribution of SPIRE and PACS detected sources using submillimetre colours
• A Comprehensive View of a Strongly Lensed Planck-Associated Submillimeter Galaxy
• Measurement of a Metallicity Gradient in a z=2 Galaxy: Implications for Inside-Out Assembly Histories
• Determining the stellar masses of submillimetre galaxies: the critical importance of star formation histories
• Dynamical Versus Stellar Masses in Compact Early-Type Galaxies: Further Evidence for Systematic Variation in the Stellar Initial Mass Function
• Herschel-ATLAS: towards a sample of ~1000 strongly-lensed galaxies
• Submillimeter Observations of Millimeter Bright Galaxies Discovered by the South Pole Telescope
• Evolution of the Far-Infrared-Radio Correlation and Infrared SEDs of Massive Galaxies over z = 0 - 2
• Galaxy Gas Fractions at High-Redshift: The Tension between Observations and Cosmological Simulations
• Lens Models of Herschel-Selected Galaxies From High-Resolution Near-IR Observations
• Luminous Starbursts in the Redshift Desert at z~1-2: Star Formation Rates, Masses & Evidence for Outflows
• Herschel-ATLAS and ALMA: HATLAS J142935.3-002836, a lensed major merger at redshift 1.027
• The FIR-Radio Relationship at High and Low Redshift
• Far-infrared spectroscopy of a lensed starburst: a blind redshift from Herschel
• Extinction and nebular line properties of a Herschel-selected lensed dusty starburst AT z=1.027
• Spitzer Imaging of Strongly-Lensed Herschel-Selected Dusty Star Forming Galaxies

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