131 citations · 456 across the 19 of their papers we have counts for
19 papers
Simulating Star Formation and Star Cluster Assembly in the Aquila Rift Using Archival Observations
Jeremy Karam, Michiko S. Fujii, Rachel Friesen +1
We simulate star formation and star cluster assembly inside a molecular cloud with parameters we derive directly from observations of the Aquila Rift. We model the evolution of sta…
Peculiar Dust Emission within the Orion Molecular Cloud
Parisa Nozari, Sarah Sadavoy, Edwige Chapillon +8
It is widely assumed that dust opacities in molecular clouds follow a power-law profile with an index, . Recent studies of the Orion Molecular Cloud (OMC) 2/3 complex, however,…
Filament Accretion and Fragmentation in the Perseus Molecular Cloud
Michael Chun-Yuan Chen, James Di Francesco, Rachel K. Friesen +6
Observations suggest that filaments in molecular clouds can grow by mass accretion while forming cores via fragmentation. Here we present one of the first large sample studies of f…
Filamentary mass accretion towards the high-mass protobinary system G11.92-0.61 MM2
S. Zhang, C. J. Cyganowski, J. D. Henshaw +5
We present deep, sub-arcsecond (2000 AU) resolution ALMA 0.82 mm observations of the former high-mass prestellar core candidate G11.92-0.61 MM2, recently shown to be an $\sim…
The Reservoir of the Per-emb-2 Streamer
Kotomi Taniguchi, Jaime E Pineda, Paola Caselli +4
Streamers bring gas from outer regions to protostellar systems and could change the chemical composition around protostars and protoplanetary disks. We have carried out mapping obs…
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.…
Filamentary Network and Magnetic Field Structures Revealed with BISTRO in the High-Mass Star-Forming Region NGC2264 : Global Properties and Local Magnetogravitational Configurations
Jia-Wei Wang, Patrick M. Koch, Seamus D. Clarke +154
We report 850 m continuum polarization observations toward the filamentary high-mass star-forming region NGC 2264, taken as part of the B-fields In STar forming Regions Observat…
Dynamics in Star-forming Cores (DiSCo): Project Overview and the First Look toward the B1 and NGC 1333 Regions in Perseus
Che-Yu Chen, Rachel Friesen, Jialu Li +13
The internal velocity structure within dense gaseous cores plays a crucial role in providing the initial conditions for star formation in molecular clouds. However, the kinematic p…
The Next Generation Very Large Array
James Di Francesco, Dean Chalmers, Nolan Denman +17
The next generation Very Large Array (ngVLA) is a transformational radio observatory being designed by the U.S. National Radio Astronomy Observatory (NRAO). It will provide order o…
SOFIA {\it FORCAST} Photometry of 12 Extended Green Objects in the Milky Way
Allison P. M. Towner, Crystal L. Brogan, Todd R. Hunter +2
Massive young stellar objects are known to undergo an evolutionary phase in which high mass accretion rates drive strong outflows. A class of objects believed to trace this phase a…
ALMA detections of the youngest protostars in Ophiuchus
Rachel K. Friesen, Andy Pon, Tyler L. Bourke +4
We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of 1.1 mm dust continuum and CO 2-1 emission toward six dense cores within the Ophiuchus molecular cloud…
The Green Bank Ammonia Survey: Unveiling the Dynamics of the Barnard 59 star-forming Clump
E. Redaelli, F. O. Alves, P. Caselli +17
Understanding the early stages of star formation is a research field of ongoing development, both theoretically and observationally. In this context, molecular data have been conti…
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…
The Massive Protostellar Cluster NGC6334I at 220 AU Resolution: Discovery of Further Multiplicity, Diversity and a Hot Multi-Core
C. L. Brogan, T. R. Hunter, C. J. Cyganowski +3
We present VLA and ALMA imaging of the deeply-embedded protostellar cluster NGC6334I from 5 cm to 1.3 mm at angular resolutions as fine as 0.17 (220 AU). The dominant hot core MM1…
Contraction Signatures Toward Dense Cores in the Perseus Molecular Cloud
J. L. Campbell, R. K. Friesen, P. G. Martin +3
We report the results of an HCO+ (3-2) and N2D+ (3-2) molecular line survey performed toward 91 dense cores in the Perseus molecular cloud using the James Clerk Maxwell Telescope,…
The JCMT Gould Belt Survey: SCUBA-2 observations of circumstellar disks in L 1495
J. V. Buckle, E. Drabek-Maunder, J. Greaves +51
We present 850m and 450m data from the JCMT Gould Belt Survey obtained with SCUBA-2 and characterise the dust attributes of Class I, Class II and Class III disk sources in L1…
G11.92-0.61-MM2: A Bonafide Massive Prestellar Core?
C. J. Cyganowski, C. L. Brogan, T. R. Hunter +6
Core accretion models of massive star formation require the existence of stable massive starless cores, but robust observational examples of such objects have proven elusive. We re…
The Herschel and JCMT Gould Belt Surveys: Constraining Dust Properties in the Perseus B1 Clump with PACS, SPIRE, and SCUBA-2
S. I. Sadavoy, J. Di Francesco, D. Johnstone +27
We present Herschel observations from the Herschel Gould Belt Survey and SCUBA-2 science verification observations from the JCMT Gould Belt Survey of the B1 clump in the Perseus mo…
The Protocluster G18.67+0.03: A Test Case for Class I Methanol Masers as Evolutionary Indicators for Massive Star Formation
C. J. Cyganowski, C. L. Brogan, T. R. Hunter +4
We present high angular resolution Submillimeter Array (SMA) and Karl G. Jansky Very Large Array (VLA) observations of the massive protocluster G18.67+0.03. Previously targeted in…