Browsing Physics & Atmospheric Science Faculty Research, Publications and Presentations by Title
Now showing items 311-330 of 532
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OH, HO2, and NO in two biomass burning plumes: Sources of HOx and implications for ozone production
No abstract available. -
On the accretion origin of a vast extended stellar disk around the Andromeda galaxy
We present the discovery of an inhomogenous, low-surface brightness, extended disk-like structure around the Andromeda galaxy (M31) based on a large kinematic survey of more than 2800 stars with the Keck/DEIMOS spectrograph. ... -
A one-dimensional cloud model with trimodal convective outflow
The author describes a one-dimensional cloud model designed to investigate the relationships between stratiform downdrafts, congestus outflow, stability, and relative humidity in the tropical lower troposphere. In the ... -
Optical and Near-Infrared Integral Field Spectroscopy of the SCUBA Galaxy N2-850.4
We present optical and near-infrared integral field spectroscopy of the SCUBA galaxy SMM J163650.43+405734.5 (ELAIS N2 850.4) at z=2.385. We combine Ly-alpha and H-alpha emission line maps and velocity structure with high ... -
Optically faint counterparts to the ISO-FIRBACK 170 micron population: the discovery of cold, luminous galaxies at high redshift
We present Keck spectroscopy and UKIRT near-IR imaging observations of two 170micron-selected sources from the ISO-FIRBACK survey which have faint counterparts in the optical, and r-K~5. Both sources were expected to lie ... -
Optimal quantum control for conditional rotation of exciton qubits in semiconductor quantum dots
No abstract available. -
The origin of [Fe II] emission in NGC 4151
The centre of NGC 4151 has been observed in the J-band with the SMIRFS integral field unit (IFU) on the UK Infrared Telescope. A map of [Fe II] emission is derived, and compared with the distributions of the optical narrow ... -
Origin of lapse rate changes in the upper tropical troposphere
Vertical motions in clouds arise from a variety of thermodynamic processes, including latent heat release, evaporative cooling, melting, and cloud radiative heating. In the Tropics, the net upward vertical mass flux from ... -
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Ozone production efficiencies of acetone and peroxides in the upper troposphere
No abstract available. -
PAndAS in the mist: The stellar and gaseous mass within the halos of M31 and M33
Large scale surveys of the prominent members of the Local Group have provided compelling evidence for the hierarchical formation of massive galaxies, revealing a wealth of substructure that is thought to be the debris from ... -
PAndAS' cubs: discovery of two new dwarf galaxies in the surroundings of the Andromeda and Triangulum galaxies
We present the discovery of two new dwarf galaxies, Andromeda XXI and Andromeda XXII, located in the surroundings of the Andromeda and Triangulum galaxies (M31 and M33). These discoveries stem from the first year data of ... -
PAndAS' progeny: extending the M31 dwarf galaxy cabal
We present the discovery of five new dwarf galaxies, Andromeda XXIII-XXVII, located in the outer halo of M31. These galaxies were found in the second year of data from the Pan-Andromeda Archaeological Survey (PAndAS) of ... -
Particle formation and growth at five rural and urban sites
Ultrafine particle (UFP) number and size distributions were simultaneously measured at five urban and rural sites during the summer of 2007 in Ontario, Canada as part of the Border Air Quality and Meteorology Study ... -
A passive nonlinear digital filter design which facilitates physics-based sound synthesis of highly nonlinear musical instruments
Recent work has led to highly efficient physics-based computational models of wave propagation in strings, acoustic tubes, membranes, plates, and rooms using the digital waveguide filter, the 2-D digital waveguide mesh, ... -
A passive nonlinear digital filter design which facilitates physics-based sound synthesis of highly nonlinear musical instruments
Recent work has led to highly efficient physics-based computational models of wave propagation in strings, acoustic tubes, membranes, plates, and rooms using the digital waveguide filter, the 2-D digital waveguide mesh, ... -
Pattern formation inside bacteria: Fluctuations due to the low copy number of proteins
No abstract available.