1 to 10 of 13 Results
Dec 28, 2023
Paul Goldsmith, 2023, "A 220 – 320 GHz High Image Rejection Sideband Separating Receiver for Space-borne Observatories", https://doi.org/10.48577/jpl.GKSHJR, IEEE Transaction on Terahertz Science and Technology, JPL Open Repository
This work presents a novel terahertz THz sideband separating receiver (SSR) implemented in silicon germanium (SiGe) 0.13 μm BiCMOS technology that covers a broad frequency range of 220-320 GHz. The proposed architecture provides simultaneous observation of spectral lines with hig... |
Nov 27, 2023
Paul Goldsmith, 2023, "The ALMA-QUARKS survey: – I. Survey description and data reduction", https://doi.org/10.48577/jpl.RI8OMQ, The Astrophysical Journal Letters, JPL Open Repository
In the Turbulent Core model, massive prestellar cores are suggested as the precursors of massive stars. However, only a handful of these candidates have been discovered so far. We conducted highresolution ALMA observations at Band 3 (∼ 2′′, 6000 au) and Band 6 (∼ 0.3′′, 900 au) t... |
Nov 27, 2023
Paul Goldsmith, 2023, "The ALMA-QUARKS survey: – I. Survey description and data reduction", https://doi.org/10.48577/jpl.V9PABL, The Astrophysical Journal Letters, JPL Open Repository
In the Turbulent Core model, massive prestellar cores are suggested as the precursors of massive stars. However, only a handful of these candidates have been discovered so far. We conducted highresolution ALMA observations at Band 3 (∼ 2′′, 6000 au) and Band 6 (∼ 0.3′′, 900 au) t... |
Nov 16, 2023
Paul Goldsmith, 2023, "The ALMA-QUARKS survey: – I. Survey description and data reduction", https://doi.org/10.48577/jpl.JWUPEE, Research in Astonomy and Astrophysics, JPL Open Repository
Abstract This paper presents an overview of the QUARKS survey, which stands for ‘Querying Underlying mechanisms of massive star formation with ALMA-Resolved gas Kinematics and Structures’. The QUARKS survey is observing 139 massive clumps covered by 156 pointings at ALMA Band 6 (... |
Oct 23, 2023
Paul Goldsmith, 2023, "Velocity-Resolved Fine Structure Line Observations : Results and Implications", https://doi.org/10.48577/jpl.WWNFZL, "Surveying the Milky Way: the Universe in Our Own backyard", JPL Open Repository
No abstract available. |
Oct 2, 2023
Paul Goldsmith, 2023, "Turbulent Structure In Supernova Remnants G46.80.3 And G39.20.3 From THOR Polarimetry", https://doi.org/10.48577/jpl.RDVJ4Y, The Astrophyscial Journal, JPL Open Repository
We present the continued analysis of polarization nd Faraday rotation for the supernova remnants (SNRs) G46.80.3 and G39.20.3 in L-band (1-2 GHz) radio continuum in The HI/OH/Recombination line (THOR) survey. In this work, we present our investigation of Faraday depth fluctuation... |
May 22, 2023
Paul Goldsmith, 2023, "Structure of the W3A Low Density Foreground Region", https://doi.org/10.48577/jpl.UFXHXJ, The Astrophyscial Journal, JPL Open Repository
We present analysis of [O i] 63 µm and CO J = 5–4 and 8–7 multi–position data in the W3A region 8 and use it to develop a model for the extended low–density foreground gas that produces absorption 9 features in the [O i] and J = 5–4 CO lines. We employ the extinction to the excit... |
Apr 24, 2023
Paul Goldsmith, 2023, "Updated Inventory of Carbon Monoxide in The Taurus Molecular Cloud", https://doi.org/10.48577/jpl.MJ9KRX, Research in Astronomy and Astrophysics, JPL Open Repository
Abstract The most extensive survey of carbon monoxide (CO) gas in the Taurus molecular cloud relied on 12CO and 13CO J = 1 → 0 emission only, distinguishing the region where 12CO is detected without 13CO (named mask 1 region) from the one where both are detected (mask 2 region) (... |
Mar 13, 2023
Paul Goldsmith, 2023, "Spiral Arms are Metal Freeways: Azimuthal Gas-Phase Metallicity Variations in Flocculent Disks in the FIRE-2 Cosmological Zoom-in Simulations", https://doi.org/10.48577/jpl.YOJ8OI, The Astrophyscial Journal, JPL Open Repository
We examine the azimuthal variations in gas-phase metallicity profiles in simulated Milky Way mass disk galaxies from the Feedback in Realistic Environments (FIRE-2) cosmological zoom-in simulation suite, which includes a sub-grid turbulent metal mixing model. We produce spatially... |
Feb 16, 2023
Paul Goldsmith, 2023, "ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Density Structure of Centrally Condensed Prestellar Cores from Multi-scale Observations", https://doi.org/10.48577/jpl.4VNY3H, The Astrophyscial Journal, JPL Open Repository
Starless cores represent the initial stage of evolution toward (proto)star formation, and a subset of them, known as prestellar cores, with high density (∼ 106 cm−3 or higher) and being centrally concentrated are expected to be embryos of (proto)stars. Determining the density pro... |