Publications (23)
Shape evolution in even-mass Zr isotopes via lifetime measurements using the -coincidence technique
G. Pasqualato, S. Ansari, J. S. Heines +82
The Zirconium (Z = 40) isotopic chain has attracted interest for more than four decades. The abrupt lowering of the energy of the first state and the increase in the transiti…
Identifying the subtle signatures of feedback from distant AGN using ALMA observations and the EAGLE hydrodynamical simulations
J. Scholtz, D. M. Alexander, C. M. Harrison +10
We present sensitive 870m continuum measurements from our ALMA programmes of 114 X-ray selected AGN in the CDF-S and COSMOS fields. We use these observations in combination wit…
Characterizing the atomic mass surface beyond the proton drip line via a-decay measurements of the s1/2 ground state of 165Re and the h11/2 isomer in 161Ta
D. O'Donnell, R. D. Page, C. Scholey +33
The a-decay chains originating from the s1/2 and h11/2 states in 173Au have been investigated following fusion-evaporation reactions. Four generations of a radioactivities have bee…
Commissioning of the BRIKEN detector for the measurement of very exotic beta-delayed neutron emitters
A. Tolosa-Delgado, J. Agramunt, J. L. Tain +63
A new detection system has been installed at the RIKEN Nishina Center (Japan) to investigate decay properties of very neutron-rich nuclei. The setup consists of three main parts: a…
Narrow resonances in the continuum of the unbound nucleus F
V. Girard-Alcindor, A. Mercenne, I. Stefan +100
The structure of the unbound F nucleus is investigated using the inverse kinematics resonant scattering of a radioactive O beam impinging on a CH target. The anal…
Improved Confinement in JET High {beta} Plasmas with an ITER-Like Wall
C. D. Challis, J. Garcia, M. Beurskens +18
The replacement of the JET carbon wall (C-wall) by a Be/W ITER-like wall (ILW) has affected the plasma energy confinement. To investigate this, experiments have been performed with…
The GALAH survey: Multiple stars and our Galaxy. I. A comprehensive method for deriving properties of FGK binary stars
G. Traven, S. Feltzing, T. Merle +24
Binary stellar systems form a large fraction of the Galaxy's stars. They are useful as laboratories for studying the physical processes taking place within stars, and must be corre…
AGATA - Advanced Gamma Tracking Array
S. Akkoyun, A. Algora, B. Alikhani +351
The Advanced GAmma Tracking Array (AGATA) is a European project to develop and operate the next generation gamma-ray spectrometer. AGATA is based on the technique of gamma-ray ener…
Deep ALMA photometry of distant X-ray AGN: improvements in star formation rate constraints, and AGN identification
F. Stanley, C. M. Harrison, D. M. Alexander +5
We present the star formation rates (SFRs) of a sample of 109 galaxies with X-ray selected active galactic nuclei (AGN) with moderate to high X-ray luminosities (L(2-8keV)= 10^42-1…
The SCUBA-2 Cosmology Legacy Survey: blank-field number counts of 450um-selected galaxies and their contribution to the cosmic infrared background
J. E. Geach, E. L. Chapin, K. E. K. Coppin +50
The first deep blank-field 450um map (1-sigma~1.3mJy) from the SCUBA-2 Cosmology Legacy Survey (S2CLS), conducted with the James Clerk Maxwell Telescope (JCMT) is presented. Our ma…
ALMA and Herschel reveal that X-ray selected AGN and main-sequence galaxies have different star formation rate distributions
J. R. Mullaney, D. M. Alexander, J. Aird +15
Using deep Herschel and ALMA observations, we investigate the star formation rate (SFR) distributions of X-ray selected AGN host galaxies at 0.5<z<1.5 and 1.5<z<4, comparing them t…
First candidates for γ vibrational bands built on the [505]11/2- neutron orbital in odd-A Dy isotopes
S. N. T. Majola, M. A. Sithole, L. Mdletshe +67
Rotational structures have been measured using the Jurogam II and GAMMASPHERE arrays at low spin following the 155Gd(α,2n)157Dy and 148Nd(12C, 5n)155Dy reactions at 25 and 65 MeV,…
High-spin structure in K
P. -A. Söderström, F. Recchia, J. Nyberg +74
High-spin states of K have been populated in the fusion-evaporation reaction C(Si,np)K and studied by means of -ray spectroscopy techniques using on…
Lens Models of Herschel-Selected Galaxies From High-Resolution Near-IR Observations
J. A. Calanog, Hai Fu, A. Cooray +36
We present Keck-Adaptive Optics and Hubble Space Telescope high resolution near-infrared (IR) imaging for 500 um-bright candidate lensing systems identified by the Herschel Multi-t…
Global Lifetime Measurements of Highly-Deformed and Other Rotational Structures in the A~135 Light Rare-Earth Region: Probing the Single-Particle Motion in a Rotating Potential
M. A. Riley, R. W. Laird, F. G. Kondev +24
It has been possible, using GAMMASPHERE plus Microball,to extract differential lifetime measurements free from common systematic errors for over 15 different nuclei (various isotop…
First observation of excited states in 173Hg
D. O'Donnell, R. D. Page, C. Scholey +33
The neutron-deficient nucleus 173Hg has been studied following fusion-evaporation reactions. The observation of gamma rays decaying from excited states are reported for the first t…
Evidence for enhanced neutron-proton correlations from the level structure of the nucleus Tc
X. Liu, B. Cederwall, C. Qi +69
The low-lying excited states in the neutron-deficient nucleus Tc have been studied via the fusion-evaporation reaction Fe(Ar, )$…
Observation of -vibrations and alignments built on non-ground-state configurations in 156Dy
S. N. T. Majola, D. J. Hartley, L. L. Riedinger +25
The exact nature of the lowest $K^Ï=2_γ^+$ rotational bands in all deformed nuclei remains obscure. Traditionally they are assumed to be collective vibrations of the nuclear shap…
A massive core for a cluster of galaxies at a redshift of 4.3
T. B. Miller, S. C. Chapman, M. Aravena +35
Massive galaxy clusters are now found as early as 3 billion years after the Big Bang, containing stars that formed at even earlier epochs. The high-redshift progenitors of these ga…
The SCUBA-2 Cosmology Legacy Survey: The EGS deep field I - Deep number counts and the redshift distribution of the recovered Cosmic Infrared Background at 450 and 850 um
J. A. Zavala, I. Aretxaga, J. E. Geach +16
We present deep observations at 450 um and 850 um in the Extended Groth Strip field taken with the SCUBA-2 camera mounted on the James Clerk Maxwell Telescope as part of the deep S…
Quadrupole Moments of Collective Structures up to Spin in Er and Er: A Challenge for Understanding Triaxiality in Nuclei
X. Wang, M. A. Riley, J. Simpson +21
The transition quadrupole moments, , of four weakly populated collective bands up to spin in Er have been measured to be …
Fusion of 12C+28Si at deep sub-barrier energies
A. M. Stefanini, G. Montagnoli, M. Del Fabbro +97
The existence of fusion hindrance is not well established in light heavy-ion systems. Studying slightly heavier cases allows extrapolating the trend to light systems of astrophysic…
Impact of newly measured \nobreakdash-delayed neutron emitters around \myisoSimp{78}{Ni} on light element nucleosynthesis in the neutrino-wind following a neutron star merger
A. Tolosa-Delgado, J. L. Tain, M. Reichert +71
Neutron emission probabilities and half-lives of 37 beta-delayed neutron emitters from 75Ni to 92Br were measured at the RIKEN Nishina Center in Japan, including 11 one-neutron and…