571 citations · 1.5k across the 20 of their papers we have counts for
22 papers
Self-interacting dark matter from radiative bound-state-formation feedback
Marcos M. Flores, Kalliopi Petraki, Thomas Pignard
Observations of galactic structure motivate sizable dark-matter self-interactions at low velocities, naturally realized through light force mediators. Such mediators can also make…
Global and Local Infall in the ASHES Sample (GLASHES). III. Physical Parameters of Contracting Motion onto Dense Cores in 70 m Dark Massive Clumps
Kaho Morii, Patricio Sanhueza, Qizhou Zhang +3
Core growth is a key process in high-mass star formation. As part of the GLASHES (Global and Local Infall in the ASHES Sample) survey, we present infall velocities and mass infall…
Magneto-Gravitational Regulated Streamer Accretion onto a Class 0 Protostellar System
Bo Huang, Josep M. Girart, Ian W. Stephens +17
How do magnetic fields shape the way young stars gather gas from their birth clouds? Using high-resolution Atacama Large Millimeter/submillimeter Array observations of a young trip…
SIMPLIFI -- Study of Interstellar Magnetic Polarization: a Legacy Investigation of Filaments. I. Magnetically-Guided Accretion onto the DR21 Ridge
Thushara G. S. Pillai, Jens Kauffmann, Juan D. Soler +15
We present first results from SIMPLIFI (Study of Interstellar Magnetic Polarization: a Legacy Investigation of Filaments), a SOFIA/HAWC+ polarimetric survey of Galact…
FIELDMAPS Data Release: Far-Infrared Polarization in the "Bones" of the Milky Way
Simon Coudé, Ian W. Stephens, Philip C. Myers +13
Polarization observations of the Milky Way and many other spiral galaxies have found a close correspondence between the orientation of spiral arms and magnetic field lines on scale…
Magnetic Fields in the Bones of the Milky Way
Ian W. Stephens, Simon Coude, Philip C. Myers +20
Stars primarily form in galactic spiral arms within dense, filamentary molecular clouds. The largest and most elongated of these molecular clouds are referred to as ``bones," which…
Gravitational Binding and Star Formation in Molecular Clouds of the Milky Way
Philip C. Myers, Mark Heyer, Ian W. Stephens +3
The gravitational binding and star-forming properties of molecular clouds (MCs) in the Milky Way (MW) are estimated from CO cloud observations and from a model of pressure-bounded…
Characterizing Magnetic Properties of Young Protostars in Orion
Bo Huang, Josep M. Girart, Ian W. Stephens +15
The {\em B}-field Orion Protostellar Survey (BOPS) recently obtained polarimetric observations at 870 towards 61 protostars in the Orion molecular clouds with $\sim 1^{\…
The Evolution of Protostellar Outflow Opening Angles and the Implications for the Growth of Protostars
Michael M. Dunham, Ian W. Stephens, Philip C. Myers +5
We use 1-4" (300-1200 au) resolution 12CO(2-1) data from the MASSES (Mass Assembly of Stellar Systems and their Evolution with the SMA) project to measure the projected opening ang…
Constraining the Stellar Masses and Origin of the Protostellar VLA 1623 System
Sarah I Sadavoy, Patrick Sheehan, John J. Tobin +6
We present ALMA Band 7 molecular line observations of the protostars within the VLA 1623 system. We map CO (3 - 2) in the circumbinary disk around VLA 1623A and the outflow…
The protostars in Orion: Characterizing the properties of their magnetized envelopes
B. Huang, J. M. Girart, I. W. Stephens +17
We present a study connecting the physical properties of protostellar envelopes to the morphology of the envelope-scale magnetic field. We used the ALMA polarization observations o…
On the magnetic field properties of protostellar envelopes in Orion
Bo Huang, Josep M. Girart, Ian W. Stephens +23
We present 870 um polarimetric observations toward 61 protostars in the Orion molecular clouds, with ~400 au (1") resolution using the Atacama Large Millimeter/submillimeter Array.…
Most-Likely DCF Estimates of Magnetic Field Strength
Philip C. Myers, Ian W. Stephens, Simon Coudé
The Davis-Chandrasekhar-Fermi (DCF) method is widely used to evaluate magnetic fields in star-forming regions. Yet it remains unclear how well DCF equations estimate the mean plane…
ALMA Observations of Starless Core Substructure in Ophiuchus
Helen Kirk, Michael M. Dunham, James Di Francesco +11
Compact substructure is expected to arise in a starless core as mass becomes concentrated in the central region likely to form a protostar. Additionally, multiple peaks may form if…
The fragmentation and stability of hierarchical structure in Serpens South
R. K. Friesen, T. L. Bourke, J. Di Francesco +2
Filamentary structures are ubiquitous in molecular clouds, and have been recently argued to play an important role in regulating the size and mass of embedded clumps through fragme…
Understanding star formation in molecular clouds III. Probability distribution functions of molecular lines in Cygnus X
N. Schneider, S. Bontemps, F. Motte +11
Column density (N) PDFs serve as a powerful tool to characterize the physical processes that influence the structure of molecular clouds. Star-forming clouds can best be characteri…
Confirmation of the VeLLO L1148-IRS: Star Formation at very low (Column) Density
J. Kauffmann, F. Bertoldi, T. L. Bourke +3
We report the detection of a compact (of order 5 arcsec; about 1800 AU projected size) CO outflow from L1148-IRS. This confirms that this Spitzer source is physically associated wi…
The Mass-Size Relation from Clouds to Cores. I. A new Probe of Structure in Molecular Clouds
J. Kauffmann, T. Pillai, R. Shetty +2
We use a new contour-based map analysis technique to measure the mass and size of molecular cloud fragments continuously over a wide range of spatial scales (0.05 < r / pc < 10), i…
The Initial Conditions of Clustered Star Formation I: NH3 Observations of Dense Cores in Ophiuchus
R. K. Friesen, J. Di Francesco, Y. L. Shirley +1
We present combined interferometer and single dish telescope data of NH3 (J,K) = (1,1) and (2,2) emission towards the clustered star forming Ophiuchus B, C and F Cores at high spat…
Observations of IC348: The Disk Population at 2-3 Million Years
C. J. Lada, A. A. Muench, K. L. Luhman +10
We present near and mid-infrared photometry obtained with the Spitzer Space Telescope of 300 known members of the IC348 cluster. We merge this photometry with existing ground-based…
Limits on Radio Continuum Emission from a Sample of Candidate Contracting Starless Cores
D. W. A. Harvey, D. J. Wilner, J. Di Francesco +3
We used the NRAO Very Large Array to search for 3.6 cm continuum emission from embedded protostars in a sample of 8 nearby ``starless'' cores that show spectroscopic evidence for i…
Systematic Molecular Differentiation in Starless Cores
M. Tafalla, P. C. Myers, P. Caselli +2
(Abridged) We present evidence that low-mass starless cores, the simplest units of star formation, are systematically differentiated in their chemical composition. Molecules includ…