Search Publications
Andromeda's Dust
Schinnerer, Eva; Rix, Hans-Walter; Draine, B. T. +10 more
Spitzer Space Telescope and Herschel Space Observatory imaging of M31 is used, with a physical dust model, to construct maps of dust surface density, dust-to-gas ratio, starlight heating intensity, and polycyclic aromatic hydrocarbon (PAH) abundance, out to R ≈ 25 kpc. The global dust mass is M d = 5.4 × 107 M ⊙, t…
An ALMA Survey of Submillimeter Galaxies in the Extended Chandra Deep Field South: The Redshift Distribution and Evolution of Submillimeter Galaxies
Thomson, A. P.; Ivison, R. J.; Smail, Ian +21 more
We present the first photometric redshift distribution for a large sample of 870 µm submillimeter galaxies (SMGs) with robust identifications based on observations with ALMA. In our analysis we consider 96 SMGs in the Extended Chandra Deep Field South, 77 of which have 4-19 band photometry. We model the SEDs for these 77 SMGs, deriving a med…
Submillimeter Galaxies as Progenitors of Compact Quiescent Galaxies
Berta, S.; Magnelli, B.; Lutz, D. +16 more
Three billion years after the big bang (at redshift z = 2), half of the most massive galaxies were already old, quiescent systems with little to no residual star formation and extremely compact with stellar mass densities at least an order of magnitude larger than in low-redshift ellipticals, their descendants. Little is known about how they forme…
A Substantial Population of Massive Quiescent Galaxies at z ~ 4 from ZFOURGE
Papovich, Casey; Dickinson, Mark; Inami, Hanae +21 more
We report the likely identification of a substantial population of massive M ~ 1011 M ⊙ galaxies at z ~ 4 with suppressed star formation rates (SFRs), selected on rest-frame optical to near-IR colors from the FourStar Galaxy Evolution Survey (ZFOURGE). The observed spectral energy distributions show pronounced breaks, sampled…
CANDELS+3D-HST: Compact SFGs at z ~ 2-3, the Progenitors of the First Quiescent Galaxies
Wuyts, S.; Giavalisco, M.; Papovich, C. +34 more
We analyze the star-forming and structural properties of 45 massive (log(M/M ⊙) >10) compact star-forming galaxies (SFGs) at 2 < z < 3 to explore whether they are progenitors of compact quiescent galaxies at z ~ 2. The optical/NIR and far-IR Spitzer/Herschel colors indicate that most compact SFGs are heavily obscured. Nearly ha…
Star Formation Relations and CO Spectral Line Energy Distributions across the J-ladder and Redshift
Veilleux, S.; Armus, L.; Greve, T. R. +19 more
We present FIR [50-300 µm]-CO luminosity relations (i.e., log L_FIR = α log L\prime _CO + β) for the full CO rotational ladder from J = 1-0 up to J = 13-12 for a sample of 62 local (z <= 0.1) (Ultra) Luminous Infrared Galaxies (LIRGs; L IR[8-1000 µm] > 1011 L ⊙) using data from Herschel…
Dust and Gas in the Magellanic Clouds from the HERITAGE Herschel Key Project. I. Dust Properties and Insights into the Origin of the Submillimeter Excess Emission
Okumura, K.; Gordon, Karl D.; Bot, Caroline +33 more
The dust properties in the Large and Small Magellanic clouds (LMC/SMC) are studied using the HERITAGE Herschel Key Project photometric data in five bands from 100 to 500 µm. Three simple models of dust emission were fit to the observations: a single temperature blackbody modified by a power-law emissivity (SMBB), a single temperature blackbo…
Are Dusty Galaxies Blue? Insights on UV Attenuation from Dust-selected Galaxies
Le Floc'h, E.; Ivison, R. J.; Sanders, D. B. +12 more
Galaxies' rest-frame ultraviolet (UV) properties are often used to directly infer the degree to which dust obscuration affects the measurement of star formation rates (SFRs). While much recent work has focused on calibrating dust attenuation in galaxies selected at rest-frame ultraviolet wavelengths, locally and at high-z, here we investigate atte…
Dust and Gas in the Magellanic Clouds from the HERITAGE Herschel Key Project. II. Gas-to-dust Ratio Variations across Interstellar Medium Phases
Gordon, Karl D.; Bot, Caroline; Lebouteiller, Vianney +32 more
The spatial variations of the gas-to-dust ratio (GDR) provide constraints on the chemical evolution and lifecycle of dust in galaxies. We examine the relation between dust and gas at 10-50 pc resolution in the Large and Small Magellanic Clouds (LMC and SMC) based on Herschel far-infrared (FIR), H I 21 cm, CO, and Hα observations. In the diffuse at…
Spectral Energy Distributions of QSOs at z > 5: Common Active Galactic Nucleus-heated Dust and Occasionally Strong Star-formation
Meisenheimer, K.; Walter, F.; Krause, O. +7 more
We present spectral energy distributions (SEDs) of 69 QSOs at z > 5, covering a rest frame wavelength range of 0.1 µm to ~80 µm, and centered on new Spitzer and Herschel observations. The detection rate of the QSOs with Spitzer is very high (97% at λrest <~ 4 µm), but drops toward the Herschel bands with 30% dete…