Publications (24)
GASKAP -- The Galactic ASKAP Survey
J. M. Dickey, N. McClure-Griffiths, S. J. Gibson +55
A survey of the Milky Way disk and the Magellanic System at the wavelengths of the 21-cm atomic hydrogen (HI) line and three 18-cm lines of the OH molecule will be carried out with…
Triggered star formation on the borders of the Galactic HII region RCW 82
M. Pomares, A. Zavagno, L. Deharveng +6
We are engaged in a multi-wavelength study of several Galactic HII regions that exhibit signposts of triggered star formation on their borders, and where the collect and collapse p…
Fission Fragment Angular Anisotropy in Neutron-Induced Fission of U Measured with a Time Projection Chamber
V. Geppert-Kleinrath, F. Tovesson, J. S. Barrett +33
Fission fragment angular distributions can provide an important constraint on fission theory, improving predictive fission codes, and are a prerequisite for a precise ratio cross s…
Detection of SiO emission from a massive dense cold core
N. Lo, M. Cunningham, I. Bains +2
We report the detection of the SiO (J = 2 - 1) transition from the massive cold dense core G333.125-0.562. The core remains undetected at wavelengths shorter than 70 micron and has…
Experimental Results from an Antineutrino Detector for Cooperative Monitoring of Nuclear Reactors
N. S. Bowden, A. Bernstein, M. Allen +9
Our collaboration has designed, installed, and operated a compact antineutrino detector at a nuclear power station, for the purpose of monitoring the power and plutonium content of…
Prospects for Observing the Standard Model Higgs Boson Decaying into b\bar{b} Final States Produced in Weak Boson Fusion with an Associated Photon at the LHC
D. M. Asner, M. Cunningham, S. Dejong +3
One of the primary goals of the Large Hadron Collider is to understand the electroweak symmetry breaking mechanism. In the Standard Model, electroweak symmetry breaking is describe…
A search for 22-GHz water masers within the giant molecular cloud associated with RCW106
S. L. Breen, S. P. Ellingsen, M. Johnston-Hollitt +7
We report the results of a blind search for 22-GHz water masers in two regions, covering approximately half a square degree, within the giant molecular cloud associated with RCW 10…
Targets for Precision Measurements
W. Loveland, L. Yao, David M. Asner +31
The general properties needed in targets (sources) for high precision, high accuracy measurements are reviewed. The application of these principles to the problem of developing tar…
Progress on the ARIADNE axion experiment
A. A. Geraci, H. Fosbinder-Elkins, C. Lohmeyer +17
The Axion Resonant InterAction Detection Experiment (ARIADNE) is a collaborative effort to search for the QCD axion using techniques based on nuclear magnetic resonance. In the exp…
Studying the molecular gas towards the R Coronae Australis dark cloud
S. Paron, M. Celis Peña, M. E. Ortega +3
The R Coronae Australis dark cloud is one of the closest star-forming regions to the Sun. The cloud is known to be very active in star formation, harboring many Herbig-Haro objects…
Measurement of the normalized U(n,f)/U(n,f) cross section ratio from threshold to 30 MeV with the fission Time Projection Chamber
R. J. Casperson, D. M. Asner, J. Baker +61
The normalized U(n,f)/U(n,f) cross section ratio has been measured using the NIFFTE fission Time Projection Chamber from the reaction threshold to ~MeV. The fis…
The foot points of the Giant Molecular Loops in the Galactic center region
D. Riquelme, A. Amo-Baladron, J. Martin-Pintado +8
Aims: To reveal the morphology, chemical composition, kinematics and to establish the main processes prevalent in the gas at the foot points of the giant molecular loops (GMLs) in…
Abundances and Isotope Ratios in the Magellanic Clouds: The Star Forming Environment of N113
M. Wang, Y. -N. Chin, C. Henkel +2
With the goal of deriving the physical and chemical conditions of star forming regions in the Large Magellanic Cloud (LMC), a spectral line survey of the prominent star forming reg…
A Centimeter-wave Study of Methanol and Ammonia Isotopologues in Sgr B2(N): Physical and chemical differentiation between two hot cores
E. A. C. Mills, J. Corby, A. R. Clements +4
We present new radio-frequency interferometric maps of emission from the 14NH3, 15NH3, and 14NH2D isotopologues of ammonia, and the 12CH3OH and 13CH3OH isotopologues of methanol to…
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…
The Science Case for Building a Band 1 Receiver Suite for ALMA
J. Di Francesco, D. Johnstone, B. Matthews +23
We present a set of compelling science cases for the ALMA Band 1 receiver suite. For these cases, we assume in tandem the updated nominal Band 1 frequency range of 35-50 GHz with a…
ASTE observations in the 345 GHz window towards the HII region N113 of the Large Magellanic Cloud
S. Paron, M. E. Ortega, M. Cunningham +4
N113 is an HII region located in the central part of the Large Magellanic Cloud (LMC) with an associated molecular cloud very rich in molecular species. Most of the previously obse…
Dense gas in nearby galaxies XVI. The nuclear starburst environment in NGC4945
M. Wang, C. Henkel, Y. -N. Chin +4
A multi-line millimeter-wave study of the nearby starburst galaxy NGC 4945 has been carried out using the Swedish-ESO Submillimeter Telescope (SEST). The study covers the frequency…
A Time Projection Chamber for High Accuracy and Precision Fission Cross Section Measurements
NIFFTE Collaboration, M. Heffner, D. M. Asner +47
The fission Time Projection Chamber (fissionTPC) is a compact (15 cm diameter) two-chamber MICROMEGAS TPC designed to make precision cross section measurements of neutron-induced f…
A view of Large Magellanic Cloud HII regions N159, N132, and N166 through the 345 GHz window
S. Paron, M. E. Ortega, C. Fariña +3
We present results obtained towards the HII regions N159, N166, and N132 from the emission of several molecular lines in the 345 GHz window. Using ASTE we mapped a 2.4' 2.…
Characterising the high-mass star forming filament G351.776--0.527 with Herschel and APEX dust continuum and gas observations
S. Leurini, E. Schisano, T. Pillai +13
G351.776-0.527 is among the most massive, closest, and youngest filaments in the inner Galactic plane and therefore it is an ideal laboratory to study the kinematics of dense gas a…
Search for a Light Standard Model Higgs Boson Produced in Association with a Photon in Vector Boson Fusion
D. Asner, M. Cunningham, S. Dejong +3
We present the prospects for the discovery of a Standard Model Higgs boson decaying to pair through the Vector Boson Fusion mechanism in association with a central photo…
The segregation of starless and protostellar clumps in the Hi-GAL l=224deg region
L. Olmi, M. Cunningham, D. Elia +1
Stars form in dense, dusty structures, which are embedded in larger clumps of molecular clouds often showing a clear filamentary structure on large scales (> 1pc). One of the best-…
The Science Cases for Building a Band 1 Receiver Suite for ALMA
J. Di Francesco, D. Johnstone, B. C. Matthews +34
We present the various science cases for building Band 1 receivers as part of ALMA's ongoing Development Program. We describe the new frequency range for Band 1 of 35-52 GHz, a ran…