Publications (31)
Searches for Large-Scale Anisotropy in the Arrival Directions of Cosmic Rays Detected above Energy of eV at the Pierre Auger Observatory and the Telescope Array
The Pierre Auger, Telescope Array Collaborations, : +605
Spherical harmonic moments are well-suited for capturing anisotropy at any scale in the flux of cosmic rays. An unambiguous measurement of the full set of spherical harmonic coeffi…
Study of Ultra-High Energy Cosmic Ray Composition Using Telescope Array's Middle Drum Detector and Surface Array in Hybrid Mode
R. U. Abbasi, M. Abe, T. Abu-Zayyad +123
Previous measurements of the composition of Ultra-High Energy Cosmic Rays(UHECRs) made by the High Resolution Fly's Eye(HiRes) and Pierre Auger Observatory(PAO) are seemingly contr…
Condensate splitting in an asymmetric double well for atom chip based sensors
B. V. Hall, S. Whitlock, R. Anderson +2
We report on the adiabatic splitting of a BEC of Rb atoms by an asymmetric double-well potential located above the edge of a perpendicularly magnetized TbGdFeCo film atom ch…
Pierre Auger Observatory and Telescope Array: Joint Contributions to the 33rd International Cosmic Ray Conference (ICRC 2013)
The Telescope Array, Pierre Auger Collaborations, : +619
Joint contributions of the Pierre Auger and Telescope Array Collaborations to the 33rd International Cosmic Ray Conference, Rio de Janeiro, Brazil, July 2013: cross-calibration of…
The Cosmic Ray Energy Spectrum Observed with the Surface Detector of the Telescope Array Experiment
T. Abu-Zayyad, R. Aida, M. Allen +137
The Telescope Array (TA) collaboration has measured the energy spectrum of ultra-high energy cosmic rays with primary energies above 1.6 x 10^(18) eV. This measurement is based upo…
The NINJA-2 project: Detecting and characterizing gravitational waveforms modelled using numerical binary black hole simulations
The LIGO Scientific Collaboration, the Virgo Collaboration, 2 Collaboration +888
The Numerical INJection Analysis (NINJA) project is a collaborative effort between members of the numerical relativity and gravitational-wave astrophysics communities. The purpose…
CATS: The Hubble Constant from Standardized TRGB and Type Ia Supernova Measurements
D. Scolnic, A. G. Riess, J. Wu +7
The Tip of the Red Giant Branch (TRGB) provides a luminous standard candle for constructing distance ladders to measure the Hubble constant. In practice its measurements via edge-d…
Optical Spectroscopy of a Flare on Barnard's Star
D. Paulson, J. Allred, R. Anderson +3
We present optical spectra of a flare on Barnard's star. Several photospheric as well as chromospheric species were enhanced by the flare heating. An analysis of the Balmer lines s…
New air fluorescence detectors employed in the Telescope Array experiment
H. Tokuno, Y. Tameda, M. Takeda +134
Since 2007, the Telescope Array (TA) experiment, based in Utah, USA, has been observing ultra high energy cosmic rays to understand their origins. The experiment involves a surface…
Improved Upper Limits on the Stochastic Gravitational-Wave Background from 2009-2010 LIGO and Virgo Data
The LIGO Scientific Collaboration, the Virgo Collaboration, J. Aasi +846
Gravitational waves from a variety of sources are predicted to superpose to create a stochastic background. This background is expected to contain unique information from throughou…
Search for gravitational radiation from intermediate mass black hole binaries in data from the second LIGO-Virgo joint science run
The LIGO Scientific Collaboration, the Virgo Collaboration, J. Aasi +847
This paper reports on an unmodeled, all-sky search for gravitational waves from merging intermediate mass black hole binaries (IMBHB). The search was performed on data from the sec…
Effect of Magnetization Inhomogeneity on Magnetic Microtraps for Atoms
S. Whitlock, B. V. Hall, T. Roach +3
We report on the origin of fragmentation of ultracold atoms observed on a permanent magnetic film atom chip. A novel technique is used to characterize small spatial variations of t…
Search for gravitational wave ringdowns from perturbed intermediate mass black holes in LIGO-Virgo data from 2005-2010
The LIGO Scientific Collaboration, the Virgo Collaboration, J. Aasi +849
We report results from a search for gravitational waves produced by perturbed intermediate mass black holes (IMBH) in data collected by LIGO and Virgo between 2005 and 2010. The se…
Search for correlations of the arrival directions of ultra-high energy cosmic ray with extragalactic objects as observed by the telescope array experiment
T. Abu-Zayyad, R. Aida, M. Allen +141
We search for correlations between positions of extragalactic objects and arrival directions of Ultra-High Energy Cosmic Rays (UHECRs) with primary energy EeV as observe…
A Northern Sky Survey for Point-Like Sources of EeV Neutral Particles with the Telescope Array Experiment
R. U. Abbasi, M. Abe, T. Abu-Zayyad +122
We report on the search for steady point-like sources of neutral particles around 10 eV between 2008 May and 2013 May with the scintillator surface detector of the Telescope…
New g'r'i'z' Photometry of the NGC 5128 Globular Cluster System
B. Sinnott, A. Hou, R. Anderson +2
We present new photometry for 323 of the globular clusters in NGC 5128 (Centaurus A), measured for the first time in the filter system. The color indices are calibrated…
Implementation of an F-statistic all-sky search for continuous gravitational waves in Virgo VSR1 data
J. Aasi, B. P. Abbott, R. Abbott +848
We present an implementation of the -statistic to carry out the first search in data from the Virgo laser interferometric gravitational wave detector for periodic grav…
The surface detector array of the Telescope Array experiment
T. Abu-Zayyad, R. Aida, M. Allen +134
The Telescope Array (TA) experiment, located in the western desert of Utah,USA, is designed for observation of extensive air showers from extremely high energy cosmic rays. The exp…
Asteroid modelling by starlight diffraction: The shape of Dimorphos, the satellite of (65803) Didymos
P. Tanga, K. Tsiganis, D. Souami +17
The DART spacecraft impacted Dimorphos, the satellite of (65803) Didymos, in September 2022. Evidence of crater formation and possible global reshaping has been obtained indirectly…
Imaging and addressing of individual fermionic atoms in an optical lattice
G. J. A. Edge, R. Anderson, D. Jervis +4
We demonstrate fluorescence microscopy of individual fermionic potassium atoms in a 527-nm-period optical lattice. Using electromagnetically induced transparency (EIT) cooling on t…
Measurement of the Proton-Air Cross Section with Telescope Array's Middle Drum Detector and Surface Array in Hybrid Mode
R. U. Abbasi, M. Abe, T. Abu-Zayyad +122
In this work we are reporting on the measurement of the proton-air inelastic cross section using the Telescope Array (TA) detector. Based on the measure…
Upper limit on the flux of photons with energies above 10^19 eV using the Telescope Array surface detector
T. Abu-Zayyad, R. Aida, M. Allen +138
We search for ultra-high energy photons by analyzing geometrical properties of shower fronts of events registered by the Telescope Array surface detector. By making use of an event…
The Energy Spectrum of Ultra-High-Energy Cosmic Rays Measured by the Telescope Array FADC Fluorescence Detectors in Monocular Mode
The Telescope Array Collaboration, T. Abu-Zayyad, R. Aida +141
We present a measurement of the energy spectrum of ultra-high-energy cosmic rays performed by the Telescope Array experiment using monocular observations from its two new FADC-base…
Search for Anisotropy of Ultra-High Energy Cosmic Rays with the Telescope Array Experiment
T. Abu-Zayyad, R. Aida, M. Allen +139
We study the anisotropy of Ultra-High Energy Cosmic Ray (UHECR) events collected by the Telescope Array (TA) detector in the first 40 months of operation. Following earlier studies…
The Energy Spectrum of Telescope Array's Middle Drum Detector and the Direct Comparison to the High Resolution Fly's Eye Experiment
T. Abu-Zayyad, R. Aida, M. Allen +137
The Telescope Array's Middle Drum fluorescence detector was instrumented with telescopes refurbished from the High Resolution Fly's Eye's HiRes-1 site. The data observed by Middle…
Indications of Intermediate-Scale Anisotropy of Cosmic Rays with Energy Greater Than 57 EeV in the Northern Sky Measured with the Surface Detector of the Telescope Array Experiment
The Telescope Array Collaboration, R. U. Abbasi, M. Abe +123
We have searched for intermediate-scale anisotropy in the arrival directions of ultrahigh-energy cosmic rays with energies above 57~EeV in the northern sky using data collected ove…
RF system for the MICE demonstration of ionization cooling
K. Ronald, C. G. Whyte, A. J. Dick +29
Muon accelerators offer an attractive option for a range of future particle physics experiments. They can enable high energy (TeV+) high energy lepton colliders whilst mitigating t…
First Upper Limits on the Radar Cross Section of Cosmic-Ray Induced Extensive Air Showers
R. U. Abbasi, M. Abe, M. Abou Bakr Othman +135
TARA (Telescope Array Radar) is a cosmic ray radar detection experiment colocated with Telescope Array, the conventional surface scintillation detector (SD) and fluorescence telesc…
Energy Spectrum of Ultra-High Energy Cosmic Rays Observed with the Telescope Array Using a Hybrid Technique
T. Abu-Zayyad, R. Aida, M. Allen +141
We measure the spectrum of cosmic rays with energies greater than eV with the Fluorescence Detectors (FDs) and the Surface Detectors (SDs) of the Telescope Array Experi…
QU Carinae: a SNeIa progenitor?
S. Kafka, R. Anderson, R. K. Honeycutt
Optical spectra obtained in 2006-07 of the nova-like cataclysmic variable QU Car are studied for radial velocities, line profiles, and line identifications. We are not able to conf…
First all-sky search for continuous gravitational waves from unknown sources in binary systems
The LIGO Scientific Collaboration, the Virgo Collaboration, J. Aasi +849
We present the first results of an all-sky search for continuous gravitational waves from unknown spinning neutron stars in binary systems using LIGO and Virgo data. Using a specia…