399 citations · 3.3k across the 65 of their papers we have counts for
26 papers · 1 filter
Revealing the diverse magnetic field morphologies in Taurus dense cores with sensitive sub-millimeter polarimetry
Chakali Eswaraiah, Di Li, Ray S. Furuya +142
We have obtained sensitive dust continuum polarization observations at 850 m in the B213 region of Taurus using POL-2 on SCUBA-2 at the James Clerk Maxwell Telescope (JCMT), as…
Observations of magnetic fields surrounding LkH 101 taken by the BISTRO survey with JCMT-POL-2
Nguyen Bich Ngoc, Pham Ngoc Diep, Harriet Parsons +146
We report the first high spatial resolution measurement of magnetic fields surrounding LkH 101, a part of the Auriga-California molecular cloud. The observations were taken with…
Three dimensional projection effects on chemistry in a Planck galactic cold clump
J. X. Ge, Diego Mardones, J. H. He +9
Offsets of molecular line emission peaks from continuum peaks are very common but frequently difficult to explain with a single spherical cloud chemical model. We propose that the…
Submillimeter continuum variability in Planck Galactic cold clumps
Geumsook Park, Kee-Tae Kim, Doug Johnstone +20
In the early stages of star formation, a protostar is deeply embedded in an optically thick envelope such that it is not directly observable. Variations in the protostellar accreti…
Investigating the Efficiency of Explosion Chemistry as a Source of Complex Organic Molecules in TMC-1
Jonathan Holdship, Jonathan Rawlings, Serena Viti +3
Many species of complex organic molecules (COMs) have been observed in several astrophysical environments but it is not clear how they are produced, particularly in cold, quiescent…
Observations of CHOH and CHCHO in a Sample of Protostellar Outflow Sources
Jonathan Holdship, Serena Viti, Claudio Codella +8
Iram 30-m Observations towards eight protostellar outflow sources were taken in the 96-\SI{176}{\giga\hertz} range. Transitions of CHOH and CHCHO were detected in seven of…
The properties of Planck Galactic cold clumps in the L1495 dark cloud
Mengyao Tang, Tie Liu, Sheng-Li Qin +19
Planck Galactic Cold Clumps (PGCCs) possibly represent the early stages of star formation. To understand better the properties of PGCCs, we studied 16 PGCCs in the L1495 cloud with…
The JCMT Gould Belt Survey: A First Look at IC 5146
D. Johnstone, S. Ciccone, H. Kirk +53
We present 450 and 850 micron submillimetre continuum observations of the IC5146 star-forming region taken as part of the JCMT Gould Belt Survey. We investigate the location of bri…
A study of methanol and silicon monoxide production through episodic explosions of grain mantles in the Central Molecular Zone
Audrey Coutens, Jonathan M. C. Rawlings, Serena Viti +1
Methanol (CHOH) is found to be abundant and widespread towards the Central Molecular Zone, the inner few hundred parsecs of our Galaxy. Its origin is, however, not fully unders…
The JCMT Gould Belt Survey: First results from SCUBA-2 observations of the Cepheus Flare Region
Kate Pattle, Derek Ward-Thompson, Jason M. Kirk +57
We present observations of the Cepheus Flare obtained as part of the James Clerk Maxwell Telescope (JCMT) Gould Belt Legacy Survey (GBLS) with the SCUBA-2 instrument. We produce a…
The JCMT Gould Belt Survey: Evidence for radiative heating and contamination in the W40 complex
D. Rumble, J. Hatchell, K. Pattle +55
We present SCUBA-2 450μm and 850μm observations of the W40 complex in the Serpens-Aquila region as part of the James Clerk Maxwell Telescope (JCMT) Gould Belt Survey (GBS) of nearb…
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…
The JCMT Gould Belt Survey: First results from the SCUBA-2 observations of the Ophiuchus molecular cloud and a virial analysis of its prestellar core population
K. Pattle, D. Ward-Thompson, J. M. Kirk +59
In this paper we present the first observations of the Ophiuchus molecular cloud performed as part of the James Clerk Maxwell Telescope (JCMT) Gould Belt Survey (GBS) with the SCUB…
Champagne Flutes and Brandy Snifters: Modelling Protostellar Outflow-Cloud Chemical Interfaces
Richard P. Rollins, Jonathan M. C. Rawlings, David A. Williams +1
A rich variety of molecular species has now been observed towards hot cores in star forming regions and in the interstellar medium. An increasing body of evidence from millimetre i…
Chemistry and Radiative Transfer of Water in Cold, Dense Clouds
Eric Keto, Jonathan Rawlings, Paola Caselli
The Herschel Space Observatory's recent detections of water vapor in the cold, dense cloud L1544 allow a direct comparison between observations and chemical models for oxygen speci…
Unified Models of Molecular Emission from Class 0 Protostellar Outflow Sources
J. M. C. Rawlings, M. P. Redman, P. B. Carolan
Low mass star-forming regions are more complex than the simple spherically symmetric approximation that is often assumed. We apply a more realistic infall/outflow physical model to…
A radical route to interstellar propylene formation
J. M. C. Rawlings, D. A. Williams, S. Viti +1
Complex organic molecules, such as propylene (CH3CHCH2), are detected in molecular clouds (such as TMC1) with high fractional abundances (~2.10^{-9}, relative to hydrogen) that can…
Is acetylene essential for carbon dust formation?
Harpreet Dhanoa, Jonathan M. C. Rawlings
We have carried out an investigation of the chemical evolution of gas in different carbon-rich circumstellar environments. Previous studies have tended to invoke terrestrial flame…
Episodic Explosions in Interstellar Ices
J. M. C. Rawlings, D. A. Williams, S. Viti +1
We present a model for the formation of large organic molecules in dark clouds. The molecules are produced in the high density gas-phase that exists immediately after ice mantles a…
The Chemical Effects of Mutual Shielding in Photon Dominated Regions
Richard P. Rollins, Jonathan M. C. Rawlings
We investigate the importance of the shielding of chemical photorates by molecular hydrogen photodissociation lines and the carbon photoionization continuum deep within models of p…
The JCMT Legacy Survey of the Gould Belt: mapping 13CO and C18O in Orion A
J. V. Buckle, C. J. Davis, J. Di Francesco +31
The Gould Belt Legacy Survey will map star-forming regions within 500 pc, using HARP (Heterodyne Array Receiver Programme), SCUBA-2 (Submillimetre Common-User Bolometer Array 2) an…
Chemistry in a gravitationally unstable protoplanetary disc
J. D. Ilee, A. C. Boley, P. Caselli +3
Until now, axisymmetric, alpha-disc models have been adopted for calculations of the chemical composition of protoplanetary discs. While this approach is reasonable for many discs,…
Chemistry in Evaporating Ices: Unexplored Territory
Cesare Cecchi-Pestellini, Jonathan M. C. Rawlings, Serena Viti +1
We suggest that three-body chemistry may occur in warm high density gas evaporating in transient co\textendash desorption events on interstellar ices. Using a highly idealised comp…
The JCMT Legacy Survey of the Gould Belt: a first look at Serpens with HARP
S. F. Graves, J. S. Richer, J. V. Buckle +32
The Gould Belt Legacy Survey (GBS) on the JCMT has observed a region of 260 square arcminutes in 12CO J=3--2 emission, and a 190 square arcminute subset of this in 13CO and C18O to…