159 citations · 558 across the 18 of their papers we have counts for
18 papers
Alignment of dense molecular core morphology and velocity gradients with ambient magnetic fields
A. Pandhi, R. K. Friesen, L. Fissel +15
Studies of dense core morphologies and their orientations with respect to gas flows and the local magnetic field have been limited to only a small sample of cores with spectroscopi…
Structure of the W3A Low Density Foreground Region
Paul F. Goldsmith, William D. Langer, Youngmin Seo +5
We present analysis of OI 63 micron and CO = 5-4 and 8-7 multi-position data in the W3A region and use it to develop a model for the extended low-density foreground gas that pr…
Determining the Shape, Size, and Sources of the Zodiacal Dust Cloud using Polarized Ultraviolet Scattered Sunlight
Geoffrey Bryden, Neal J. Turner, Petr Pokorny +7
The solar system's Zodiacal Cloud is visible to the unaided eye, yet the origin of its constituent dust particles is not well understood, with a wide range of proposed divisions be…
Are massive dense clumps truly sub-virial? A new analysis using Gould Belt ammonia data
Ayushi Singh, Christopher D. Matzner, Rachel K. Friesen +21
Dynamical studies of dense structures within molecular clouds often conclude that the most massive clumps contain too little kinetic energy for virial equilibrium, unless they are…
Probing Polarization and the Role of Magnetic Fields in Cloud Destruction in the Keyhole Nebula
Young Min Seo, C. Darren Dowell, Paul F. Goldsmith +2
We present polarimetric observations of the Keyhole Nebula in the Carina Nebula Complex carried out using the Stratospheric Observatory for Infrared Astronomy. The Keyhole Nebula l…
Applications of Machine Learning Algorithms In Processing Terahertz Spectroscopic Data
Young Min Seo, Paul F. Goldsmith, Volker Tolls +5
We present the data reduction software and the distribution of Level 1 and Level 2 products of the Stratospheric Terahertz Observatory 2 (STO2). STO2, a balloon-borne Terahertz tel…
Relative Alignment between Dense Molecular Cores and Ambient Magnetic Field: The Synergy of Numerical Models and Observations
Che-Yu Chen, Erica A. Behrens, Jasmin E. Washington +26
The role played by magnetic field during star formation is an important topic in astrophysics. We investigate the correlation between the orientation of star-forming cores (as defi…
The Green Bank Ammonia Survey: A Virial Analysis of Gould Belt Clouds in Data Release 1
Ronan Kerr, Helen Kirk, James Di Francesco +14
We perform a virial analysis of starless dense cores in three nearby star-forming regions : L1688 in Ophiuchus, NGC 1333 in Perseus, and B18 in Taurus. Our analysis takes advantage…
Probing ISM Structure in Trumpler 14 & Carina I Using The Stratospheric Terahertz Observatory 2
Young Min Seo, Paul F. Goldsmith, Chris Walker +26
We present observations of the Trumpler 14/Carina I region carried out using the Stratospheric Terahertz Observatory 2 (STO2). The Trumpler 14/Carina I region is in the west part o…
An Ammonia Spectral Map of the L1495-B218 Filaments in the Taurus Molecular Cloud: II CCS & HCN Chemistry and Three Modes of Star Formation in the Filaments
Young Min Seo, Liton Majumdar, Paul F. Goldsmith +22
We present deep CCS and HCN observations of the L1495-B218 filaments in the Taurus molecular cloud obtained using the K-band focal plane array on the 100m Green Bank Telescope.…
Droplets I: Pressure-Dominated Sub-0.1 pc Coherent Structures in L1688 and B18
Hope How-Huan Chen, Jaime E. Pineda, Alyssa A. Goodman +22
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 the Green Bank Ammoni…
The Green Bank Ammonia Survey: Observations of Hierarchical Dense Gas Structures in Cepheus-L1251
Jared Keown, James Di Francesco, Helen Kirk +20
We use Green Bank Ammonia Survey observations of NH (1,1) and (2,2) emission with 32'' FWHM resolution from a ~ 10 pc portion of the Cepheus-L1251 molecular cloud to iden…
The Green Bank Ammonia Survey: Dense Cores Under Pressure in Orion A
Helen Kirk, Rachel K. Friesen, Jaime E. Pineda +21
We use gas temperature and velocity dispersion data from the Green Bank Ammonia Survey and core masses and sizes from the James Clerk Maxwell Telescope Gould Belt Survey to estimat…
The Green Bank Ammonia Survey (GAS): First Results of NH3 mapping the Gould Belt
Rachel K. Friesen, Jaime E. Pineda, Erik Rosolowsky +21
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 Bank Telescope to map al…
The Role of Non-ionizing Radiation Pressure in Star Formation: The Stability of Cores and Filaments
Young Min Seo, Andrew N. Youdin
Stars form when filaments and dense cores in molecular clouds fragment and collapse due to self-gravity. In the most basic analyses of gravitational stability, the competition betw…
An Ammonia Spectral Map of the L1495-B218 Filaments in the Taurus Molecular Cloud : I. Physical Properties of Filaments and Dense cores
Young Min Seo, Yancy L. Shirley, Paul Goldsmith +8
We present deep NH observations of the L1495-B218 filaments in the Taurus molecular cloud covering over a 3 degree angular range using the K-band focal plane array on the 100m…
On the internal dynamics of starless cores: stability of starless cores with internal motions and collapse dynamics
Young Min Seo, Seung Soo Hong, Yancy L. Shirley
In order to understand the collapse dynamics of observed low-mass starless cores, we revise the conventional stability condition of hydrostatic Bonnor-Ebert spheres to take interna…
Gravitational Instability of Rotating, Pressure-Confined, Polytropic Gas Disks With Vertical Stratification
Jeong-Gyu Kim, Woong-Tae Kim, Young Min Seo +1
We investigate gravitational instability (GI) of rotating, vertically-stratified, pressure-confined, polytropic gas disks using linear stability analysis as well as analytic approx…