Search Publications
Deriving Physical Properties from Broadband Photometry with Prospector: Description of the Model and a Demonstration of its Accuracy Using 129 Galaxies in the Local Universe
van Dokkum, Pieter G.; Conroy, Charlie; Johnson, Benjamin D. +2 more
Broadband photometry of galaxies measures an unresolved mix of complex stellar populations, gas, and dust. Interpreting these data is a challenge for models: many studies have shown that properties derived from modeling galaxy photometry are uncertain by a factor of two or more, and yet answering key questions in the field now requires higher accu…
The Complete Infrared View of Active Galactic Nuclei from the 70 Month Swift/BAT Catalog
Ueda, Yoshihiro; Kawamuro, Taiki; Ricci, Claudio +5 more
We systematically investigate the near- to far-infrared (FIR) photometric properties of a nearly complete sample of local active galactic nuclei (AGNs) detected in the Swift/Burst Alert Telescope (BAT) all-sky ultra-hard X-ray (14-195 keV) survey. Out of 606 non-blazar AGNs in the Swift/BAT 70 month catalog at high galactic latitudes of | b| > …
Dust-deficient Palomar-Green Quasars and the Diversity of AGN Intrinsic IR Emission
Lyu, Jianwei; Rieke, G. H.; Shi, Yong
To elucidate the intrinsic broadband infrared (IR) emission properties of active galactic nuclei (AGNs), we analyze the spectral energy distributions (SEDs) of 87 z ≲ 0.5 Palomar-Green (PG) quasars. While the Elvis AGN template with a moderate far-IR correction can reasonably match the SEDs of the AGN components in ∼60% of the sample (and is super…
Modeling the Anomalous Microwave Emission with Spinning Nanoparticles: No PAHs Required
Draine, B. T.; Hensley, Brandon S.
In light of recent observational results indicating an apparent lack of correlation between the anomalous microwave emission (AME) and mid-infrared emission from polycyclic aromatic hydrocarbons, we assess whether rotational emission from spinning silicate and/or iron nanoparticles could account for the observed AME without violating observational…
A Massive Shell of Supernova-formed Dust in SNR G54.1+0.3
Gelfand, Joseph D.; Temim, Tea; Reynolds, Stephen P. +5 more
While theoretical models of dust condensation predict that most refractory elements produced in core-collapse supernovae (SNe) efficiently condense into dust, a large quantity of dust has so far only been observed in SN 1987A. We present an analysis of observations from the Spitzer Space Telescope, Herschel Space Observatory, Stratospheric Observa…
The Sizes and Depletions of the Dust and Gas Cavities in the Transitional Disk J160421.7-213028
Dong, Ruobing; Ohashi, Nagayoshi; Tamura, Motohide +18 more
We report ALMA Cycle 2 observations of 230 GHz (1.3 mm) dust continuum emission, and 12CO, 13CO, and C18O J = 2-1 line emission, from the Upper Scorpius transitional disk [PZ99] J160421.7-213028, with an angular resolution of ∼0\buildrel{\prime\prime}\over{.} 25 (35 au). Armed with these data and existing H-band sc…
Far-infrared to Millimeter Data of Protoplanetary Disks: Dust Growth in the Taurus, Ophiuchus, and Chamaeleon I Star-forming Regions
Bouy, Hervé; Naylor, David A.; Calvet, Nuria +7 more
Far-infrared and (sub)millimeter fluxes can be used to study dust in protoplanetary disks, the building blocks of planets. Here, we combine observations from the Herschel Space Observatory with ancillary data of 284 protoplanetary disks in the Taurus, Chamaeleon I, and Ophiuchus star-forming regions, covering from the optical to mm/cm wavelengths.…
Ionized Gas Outflows in Infrared-bright Dust-obscured Galaxies Selected with WISE and SDSS
Toba, Yoshiki; Nagao, Tohru; Wang, Wei-Hao +5 more
We present the ionized gas properties of infrared (IR)-bright dust-obscured galaxies (DOGs) that show an extreme optical/IR color, {(i-[22])}{AB}> 7.0, selected with the Sloan Digital Sky Survey (SDSS) and Wide-field Infrared Survey Explorer (WISE). For 36 IR-bright DOGs that show [O III]λ5007 emission in the SDSS spectra, we perform…
H I, CO, and Dust in the Perseus Cloud
Tachihara, Kengo; Fukui, Yasuo; Hayashi, Katsuhiro +3 more
Comparison analyses between the gas emission data ({{H}} {{I}} 21 {cm} line and {CO} 2.6 {mm} line) and the Planck/IRAS dust emission data (optical depth at 353 {GHz} {τ }353 and dust temperature {T}{{d}}) allow us to estimate the amount and distribution of the hydrogen gas more accurately, and our previous studies revealed t…
A Universal Correlation between Star Formation Activity and Molecular Gas Properties Across Environments
Nakagawa, Takao; Suzuki, Tomoko L.; Koyama, Yusei +10 more
We present the molecular gas mass fraction ({f}{{{H}}2}) and star formation efficiency (SFE) of local galaxies on the basis of our new CO(J=1-0) observations with the Nobeyama 45 m radio telescope, combined with the COLDGASS galaxy catalog, as a function of galaxy environment defined as the local number density of galaxies me…