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1 to 10 of 46 Results
Long-term Integration Ability of the SubmillimeterWave Astronomy Satellite (SWAS) Spectral Line ReceiversEmbargoed
May 29, 2024
Paul Goldsmith, 2024, "Long-term Integration Ability of the SubmillimeterWave Astronomy Satellite (SWAS) Spectral Line Receivers", https://doi.org/10.48577/jpl.KR15HL, Research in Astronomy and Astrophysics, JPL Open Repository
The Submillimeter Wave Astronomy Satellite (SWAS) was the first space telescope capable of high spectral resolution observations of terahertz spectral lines. We have investigated the integration ability of its two receivers and spectrometer during five and a half years of on-orbi...
ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Molecular jets and Episodic Accretion in ProtostarsEmbargoed
Jan 25, 2024
Paul Goldsmith, 2024, "ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Molecular jets and Episodic Accretion in Protostars", https://doi.org/10.48577/jpl.BHPOU8, Astronomical Journal, JPL Open Repository
Protostellar outflows and jets are almost ubiquitous characteristics during the mass accretion phase, and encode the history of stellar accretion, complex-organic molecule (COM) formation, and planet formation. Episodic jets are likely connected to episodic accretion through the...
A 220 – 320 GHz High Image Rejection Sideband Separating Receiver for Space-borne ObservatoriesEmbargoed
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...
Constraining the H2 column densities in the diffuse interstellar medium using dust extinction and Hi dataEmbargoed
Dec 4, 2023
Paul Goldsmith, 2023, "Constraining the H2 column densities in the diffuse interstellar medium using dust extinction and Hi data", https://doi.org/10.48577/jpl.50ED4Q, Astronomy & Astrophysics, JPL Open Repository
Context. Carbon monoxide (CO) is a poor tracer of H2 in the diffuse interstellar medium (ISM), where most of the carbon is not,incorporated into CO molecules unlike the situation at higher extinctions. Aims. We present a novel indirect method to constrain H2 column densities (NH2...
The ALMA-QUARKS survey: – I. Survey description and data reduction
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...
The ALMA-QUARKS survey: – I. Survey description and data reductionEmbargoed
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...
The ALMA-QUARKS survey: – I. Survey description and data reductionEmbargoed
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 (...
Velocity-Resolved Fine Structure Line Observations :  Results and Implications
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.
Turbulent Structure In Supernova Remnants G46.80.3 And G39.20.3 From THOR PolarimetryEmbargoed
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...
Cold Atomic gas identified by Hi self-absorption I. Cold atomic clouds toward giant molecular filamentsEmbargoed
Oct 2, 2023
Paul Goldsmith, 2023, "Cold Atomic gas identified by Hi self-absorption I. Cold atomic clouds toward giant molecular filaments", https://doi.org/10.48577/jpl.EMC6QN, Astronomy & Astrophysics, JPL Open Repository
Context. Stars form in the dense interiors of molecular clouds. The dynamics and physical properties of the atomic interstellar medium (ISM) set the conditions under which molecular clouds and eventually stars will form. It is therefore critical to investigate the relationship be...
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