Search Results - "Myers, Philip C."
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Magnetic Properties of Star-forming Dense Cores
Published in The Astrophysical journal (01-08-2021)“…Abstract Magnetic and energetic properties are presented for 17 dense cores within a few hundred parsecs of the Sun. Their plane-of-sky field strengths B pos…”
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Star-forming Filament Models
Published in The Astrophysical journal (20-03-2017)“…New models of star-forming filamentary clouds are presented in order to quantify their properties and to predict their evolution. These 2D axisymmetric models…”
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Magnetic Field Structure in Spheroidal Star-forming Clouds
Published in The Astrophysical journal (20-11-2018)“…A model of magnetic field structure is presented to help test the prevalence of flux freezing in star-forming clouds of various shapes, orientations, and…”
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4
Filamentary Fragmentation and Accretion in High-mass Star-forming Molecular Clouds
Published in The Astrophysical journal (01-03-2018)“…Filamentary structures are ubiquitous in high-mass star-forming molecular clouds. Their relation with high-mass star formation is still to be understood. Here…”
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5
Can Protostellar Outflows Set Stellar Masses?
Published in The Astrophysical journal (01-05-2023)“…Abstract The opening angles of some protostellar outflows appear too narrow to match the expected core–star mass efficiency (SFE) = 0.3–0.5, if the outflow…”
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Most-likely DCF Estimates of Magnetic Field Strength
Published in The Astrophysical journal (01-02-2024)“…Abstract The Davis–Chandrasekhar–Fermi (DCF) method is widely used to evaluate magnetic fields in star-forming regions. Yet it remains unclear how well DCF…”
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Models of Rotating Infall for the B335 Protostar
Published in The Astrophysical journal (01-02-2023)“…Abstract Models of the protostellar source, B335, are developed using axisymmetric three-dimensional models to resolve conflicts found in one-dimensional…”
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The Herschel Orion Protostar Survey: Luminosity and Envelope Evolution
Published in The Astrophysical journal (10-05-2017)“…The Herschel Orion Protostar Survey obtained well-sampled 1.2-870 m spectral energy distributions (SEDs) of over 300 protostars in the Orion molecular clouds,…”
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The Specific Angular Momentum Radial Profile in Dense Cores: Improved Initial Conditions for Disk Formation
Published in The Astrophysical journal (10-09-2019)“…The determination of the specific angular momentum radial profile, j(r), in the early stages of star formation is crucial to constrain star and circumstellar…”
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The Green Bank Ammonia Survey: First Results of NH3 Mapping of the Gould Belt
Published in The Astrophysical journal (01-07-2017)“…We present an overview of the first data release (DR1) and first-look science from the Green Bank Ammonia Survey (GAS). GAS is a Large Program at the Green…”
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Star-Gas Surface Density Correlations in 12 Nearby Molecular Clouds. I. Data Collection and Star-sampled Analysis
Published in The Astrophysical journal (01-06-2020)“…We explore the relation between the stellar mass surface density and the mass surface density of molecular hydrogen gas in 12 nearby molecular clouds that are…”
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The Role of Filamentary Structures in the Formation of Two Dense Cores, L1544 and L694-2
Published in The Astrophysical journal (01-12-2022)“…Abstract We present mapping results of two prestellar cores, L1544 and L694-2, embedded in filamentary clouds in C 18 O (3–2), 13 CO (3–2), 12 CO (3–2), HCO +…”
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Hierarchical Fragmentation in the Perseus Molecular Cloud: From the Cloud Scale to Protostellar Objects
Published in The Astrophysical journal (20-01-2018)“…We present a study of hierarchical structure in the Perseus molecular cloud, from the scale of the entire cloud ( pc) to smaller clumps (∼1 pc), cores…”
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Alignment between Protostellar Outflows and Filamentary Structure
Published in The Astrophysical journal (01-09-2017)“…We present new Submillimeter Array (SMA) observations of CO(2-1) outflows toward young, embedded protostars in the Perseus molecular cloud as part of the Mass…”
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The Green Bank Ammonia Survey: Dense Cores under Pressure in Orion A
Published in The Astrophysical journal (10-09-2017)“…We use data on gas temperature and velocity dispersion from the Green Bank Ammonia Survey and core masses and sizes from the James Clerk Maxwell Telescope…”
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Magnetic Field Structure of Dense Cores Using Spectroscopic Methods
Published in The Astrophysical journal (20-02-2019)“…We develop a new "core field structure" (CFS) model to predict the magnetic field strength and magnetic field fluctuation profile of dense cores using gas…”
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Droplets. I. Pressure-dominated Coherent Structures in L1688 and B18
Published in The Astrophysical journal (01-06-2019)“…We present the observation and analysis of newly discovered coherent structures in the L1688 region of Ophiuchus and the B18 region of Taurus. Using data from…”
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The Mass Evolution of Protostellar Disks and Envelopes in the Perseus Molecular Cloud
Published in The Astrophysical journal (01-03-2019)“…In the standard picture for low-mass star formation, a dense molecular cloud undergoes gravitational collapse to form a protostellar system consisting of a new…”
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TRAO Survey of Nearby Filamentary Molecular Clouds, the Universal Nursery of Stars (TRAO-FUNS). III. Filaments and Dense Cores in the NGC 2068 and NGC 2071 Regions of Orion B
Published in The Astrophysical journal (01-11-2023)“…Abstract We present the results of molecular line observations performed toward the NGC 2068 and NGC 2071 regions of the Orion B cloud as the TRAO-FUNS project…”
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Evolution and Kinematics of Protostellar Envelopes in the Perseus Molecular Cloud
Published in The Astrophysical journal (01-03-2022)“…Abstract We present a comprehensive analysis of the evolution of envelopes surrounding protostellar systems in the Perseus molecular cloud using data from the…”
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