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The JCMT Gould Belt Survey: Evidence for radiative heating in Serpens MWC 297 and its influence on local star formation
D. Rumble, J. Hatchell, R. A. Gutermuth +61
We present SCUBA-2 450micron and 850micron observations of the Serpens MWC 297 region, part of the JCMT Gould Belt Survey of nearby star-forming regions. Simulations suggest that r…
The JCMT Legacy Survey of the Gould Belt: a molecular line study of the Ophiuchus molecular cloud
Glenn J. White, Emily Drabek-Maunder, Erik Rosolowsky +17
CO, CO and CO = 3--2 observations are presented of the Ophiuchus molecular cloud. The CO and CO emission is dominated by the Oph A clump, and…
Revealing H2D+ depletion and compact structure in starless and protostellar cores with ALMA
R. K. Friesen, J. Di Francesco, T. L. Bourke +4
We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of the submillimeter dust continuum and H2D+ 1_{10}-1_{11} emission toward two evolved, potentially prot…
ALMA observations of a misaligned binary protoplanetary disk system in Orion
Jonathan P. Williams, Rita K. Mann, James Di Francesco +6
We present ALMA observations of a wide binary system in Orion, with projected separation 440 AU, in which we detect submillimeter emission from the protoplanetary disks around each…
Signatures of warm carbon monoxide in protoplanetary discs observed with Herschel SPIRE
M. H. D. van der Wiel, D. A. Naylor, I. Kamp +9
Molecular gas constitutes the dominant mass component of protoplanetary discs. To date, these sources have not been studied comprehensively at the longest far-infrared and shortest…
Evidence for Large Grains in the Star-forming Filament OMC-2/3
Scott Schnee, Brian Mason, James Di Francesco +4
We present a new 3.3 mm continuum map of the OMC-2/3 region. When paired with previously published maps of 1.2mm continuum and NH3-derived temperature, we derive the emissivity spe…
The disk around the brown dwarf KPNO Tau 3
Hannah Broekhoven-Fiene, Brenda Matthews, Gaspard Duchene +4
We present submillimeter observations of the young brown dwarfs KPNO Tau 1, KPNO Tau 3, and KPNO Tau 6 at 450 micron and 850 micron taken with the Submillimeter Common-User Bolomet…
Class 0 Protostars in the Perseus Molecular Cloud: A Correlation Between the Youngest Protostars and the Dense Gas Distribution
S. I. Sadavoy, J. Di Francesco, Ph. Andre +18
We use PACS and SPIRE continuum data at 160 um, 250 um, 350 um, and 500 um from the Herschel Gould Belt Survey to sample seven clumps in Perseus: B1, B1-E, B5, IC348, L1448, L1455,…
ALMA Observations of the Orion Proplyds
Rita K. Mann, James Di Francesco, Doug Johnstone +6
We present ALMA observations of protoplanetary disks ("proplyds") in the Orion Nebula Cluster. We imaged 5 individual fields at 856um containing 22 HST-identified proplyds and dete…
Fragmentation of massive dense cores down to ~1000 AU: Relation between fragmentation and density structure
Aina Palau, R. Estalella, J. M. Girart +10
In order to shed light on the main physical processes controlling fragmentation of massive dense cores, we present a uniform study of the density structure of 19 massive dense core…
Properties of Starless and Prestellar Cores in Taurus Revealed by Herschel SPIRE/PACS Imaging
K. A. Marsh, M. J. Griffin, P. Palmeirim +18
The density and temperature structures of dense cores in the L1495 cloud of the Taurus star-forming region are investigated using Herschel SPIRE and PACS images in the 70 m, 160…
Ionization compression impact on dense gas distribution and star formation, Probability density functions around H ii regions as seen by Herschel
P. Tremblin, N. Schneider, V. Minier +22
Ionization feedback should impact the probability distribution function (PDF) of the column density around the ionized gas. We aim to quantify this effect and discuss its potential…