Outputs (2278)

Did BICEP2 See Vector Modes? First B-Mode Constraints on Cosmic Defects (2014)
Journal Article
Moss, A., & Pogosian, L. (2014). Did BICEP2 See Vector Modes? First B-Mode Constraints on Cosmic Defects. Physical Review Letters, 112(17), Article 171302. https://doi.org/10.1103/PhysRevLett.112.171302

Scaling networks of cosmic defects, such as strings and textures, actively generate scalar, vector, and tensor metric perturbations throughout the history of the Universe. In particular, vector modes sourced by defects are an efficient source of the... Read More about Did BICEP2 See Vector Modes? First B-Mode Constraints on Cosmic Defects.

Chameleons in the early universe: kicks, rebounds, and particle production (2014)
Journal Article
Erickcek, A. L., Barnaby, N., Burrage, C., & Huang, Z. (2014). Chameleons in the early universe: kicks, rebounds, and particle production. Physical Review D, D89(8), Article 084074. https://doi.org/10.1103/PhysRevD.89.084074

Chameleon gravity is a scalar-tensor theory that includes a nonminimal coupling between the scalar field and the matter fields and yet mimics general relativity in the Solar System. The scalar degree of freedom is hidden in high-density environments... Read More about Chameleons in the early universe: kicks, rebounds, and particle production.

Cavity-enhanced room-temperature magnetometry using absorption by nitrogen-vacancy centers in diamond (2014)
Journal Article
Jensen, K., Leefer, N., Jarmola, A., Dumeige, Y., Acosta, V., Kehayias, P., Patton, B., & Budker, D. (2014). Cavity-enhanced room-temperature magnetometry using absorption by nitrogen-vacancy centers in diamond. Physical Review Letters, 112(16), 160802. https://doi.org/10.1103/PhysRevLett.112.160802

We demonstrate a cavity-enhanced room-temperature magnetic field sensor based on nitrogen-vacancy centers in diamond. Magnetic resonance is detected using absorption of light resonant with the 1042 nm spin-singlet transition. The diamond is placed in... Read More about Cavity-enhanced room-temperature magnetometry using absorption by nitrogen-vacancy centers in diamond.

The origin of S0s in clusters: evidence from the bulge and disc star formation histories (2014)
Journal Article
Johnston, E. J., Aragón-Salamanca, A., & Merrifield, M. R. (2014). The origin of S0s in clusters: evidence from the bulge and disc star formation histories. Monthly Notices of the Royal Astronomical Society, 441(1), https://doi.org/10.1093/mnras/stu582

The individual star formation histories of bulges and discs of lenticular (S0) galaxies can provide information on the processes involved in the quenching of their star formation and subsequent transformation from spirals. In order to study this tran... Read More about The origin of S0s in clusters: evidence from the bulge and disc star formation histories.

A z = 2.5 protocluster associated with the radio galaxy MRC 2104-242: star formation and differing mass functions in dense environments (2014)
Journal Article
Cooke, E., Hatch, N. A., Muldrew, S., Rigby, E., & Kurk, J. (2014). A z = 2.5 protocluster associated with the radio galaxy MRC 2104-242: star formation and differing mass functions in dense environments. Monthly Notices of the Royal Astronomical Society, 440(4), https://doi.org/10.1093/mnras/stu522

We present results from a narrow-band survey of the field around the high-redshift radio galaxy MRC 2104−242. We have selected Hα emitters in a 7 arcmin2 field and compared the measured number density with that of a field sample at similar redshift.... Read More about A z = 2.5 protocluster associated with the radio galaxy MRC 2104-242: star formation and differing mass functions in dense environments.

Quantum Walks of Correlated Photon Pairs in Two-Dimensional Waveguide Arrays (2014)
Journal Article
Poulios, K., Keil, R., Fry, D., D. A. Meinecke, J., C. F. Matthews, J., Politi, A., Lobino, M., Gräfe, M., Heinrich, M., Nolte, S., Szameit, A., & L. O'Brien, J. (2014). Quantum Walks of Correlated Photon Pairs in Two-Dimensional Waveguide Arrays. Physical Review Letters, 112(14), Article 143604. https://doi.org/10.1103/PhysRevLett.112.143604

We demonstrate quantum walks of correlated photons in a 2D network of directly laser written waveguides coupled in a 'swiss cross' arrangement. The correlated detection events show high-visibility quantum interference and unique composite behaviour:... Read More about Quantum Walks of Correlated Photon Pairs in Two-Dimensional Waveguide Arrays.

The galaxy cluster mid-infrared luminosity function at 1.3 < z <3.2 (2014)
Journal Article
Wylezalek, D., Vernett, J., De Breuck, C., Stern, D., Brodwin, M., Galametz, A., Gonzalez, A. H., Jarvis, M., Hatch, N. A., Seymour, N., & Stanford, S. A. (in press). The galaxy cluster mid-infrared luminosity function at 1.3 < z

We present 4.5 μm luminosity functions for galaxies identified in 178 candidate galaxy clusters at 1.3 <z 3.2. The clusters were identified as Spitzer/Infrared Array Camera (IRAC) color-selected overdensities in the Clusters Around Radio-Loud AGN pro... Read More about The galaxy cluster mid-infrared luminosity function at 1.3 < z <3.2.

Classical Nernst engine (2014)
Journal Article
Brandner, K., Saito, K., Stark, J., & Seifert, U. (2014). Classical Nernst engine. Physical Review Letters, 112(14), Article 140601. https://doi.org/10.1103/physrevlett.112.140601

We introduce a simple model for an engine based on the Nernst effect. In the presence of a magnetic field, a vertical heat current can drive a horizontal particle current against a chemical potential. For a microscopic model invoking classical partic... Read More about Classical Nernst engine.

Herschel-ATLAS: modelling the first strong gravitational lenses (2014)
Journal Article
Dye, S., Negrello, M., Hopwood, R., Nightingale, J., Bussmann, R., Amber, S., Bourne, N., Cooray, A., Dariush, A., Dunne, L., Eales, S., González-Nuevo, J., Ibar, E., Ivison, R., Maddox, S., & Valiante, E. (2014). Herschel-ATLAS: modelling the first strong gravitational lenses. Monthly Notices of the Royal Astronomical Society, 440, https://doi.org/10.1093/mnras/stu305

We have determined the mass density radial profiles of the first five strong gravitational lens systems discovered by the Herschel Astrophysical Terahertz Large Area Survey. We present an enhancement of the semilinear lens inversion method of Warren... Read More about Herschel-ATLAS: modelling the first strong gravitational lenses.

Herschel *-ATLAS: deep HST/WFC3 imaging of strongly lensed submillimetre galaxies (2014)
Journal Article
Negrello, M., Hopwood, R., Dye, S., Cunha, E. D., Serjeant, S., Fritz, J., Rowlands, K., Fleuren, S., Bussmann, R. S., Cooray, A., Dannerbauer, H., Gonzalez-Nuevo, J., Lapi, A., Omont, A., Amber, S., Auld, R., Baes, M., Buttiglione, S., Cava, A., Danese, L., …Wardlow, J. (2014). Herschel *-ATLAS: deep HST/WFC3 imaging of strongly lensed submillimetre galaxies. Monthly Notices of the Royal Astronomical Society, 440(3), 1999-2012. https://doi.org/10.1093/mnras/stu413

We report on deep near-infrared observations obtained with the Wide Field Camera-3 (WFC3) onboard the Hubble Space Telescope (HST) of the first five confirmed gravitational lensing events discovered by the Herschel Astrophysical Terahertz Large Area... Read More about Herschel *-ATLAS: deep HST/WFC3 imaging of strongly lensed submillimetre galaxies.