Outputs (251)

Planck intermediate results. XLVII. Planck constraints on reionization history (2016)
Journal Article
Planck Collaboration, Adam, R., Aghanim, N., Ashdown, M., Aumont, J., Baccigalupi, C., …Zonca, A. (2016). Planck intermediate results. XLVII. Planck constraints on reionization history. Astronomy and Astrophysics, 596, Article A108. https://doi.org/10.1051/0004-6361/201628897

We investigate constraints on cosmic reionization extracted from the Planck cosmic microwave background (CMB) data. We combine the Planck CMB anisotropy data in temperature with the low-multipole polarization data to fit ΛCDM models with various para... Read More about Planck intermediate results. XLVII. Planck constraints on reionization history.

Planck intermediate results. XLIX. Parity-violation constraints from polarization data (2016)
Journal Article
Aghanim, N., Ashdown, M., Aumont, J., Baccigalupi, C., Ballardini, M., Banday, A., …Zonca, A. (in press). Planck intermediate results. XLIX. Parity-violation constraints from polarization data. Astronomy and Astrophysics, 596, Article A110. https://doi.org/10.1051/0004-6361/201629018

Parity-violating extensions of the standard electromagnetic theory cause in vacuo rotation of the plane of polarization of propagating photons. This effect, also known as cosmic birefringence, has an impact on the cosmic microwave background (CMB) an... Read More about Planck intermediate results. XLIX. Parity-violation constraints from polarization data.

Planck intermediate results. XLVI. Reduction of large-scale systematic effects in HFI polarization maps and estimation of the reionization optical depth (2016)
Journal Article
Planck Collaboration, Aghanim, N., Ashdown, M., Aumont, J., Baccigalupi, C., Ballardini, M., …Zonca, A. (2016). Planck intermediate results. XLVI. Reduction of large-scale systematic effects in HFI polarization maps and estimation of the reionization optical depth. Astronomy and Astrophysics, 596, Article A107. https://doi.org/10.1051/0004-6361/201628890

This paper describes the identification, modelling, and removal of previously unexplained systematic effects in the polarization data of the Planck High Frequency Instrument (HFI) on large angular scales, including new mapmaking and calibration proce... Read More about Planck intermediate results. XLVI. Reduction of large-scale systematic effects in HFI polarization maps and estimation of the reionization optical depth.

Planck intermediate results. XLVIII. Disentangling Galactic dust emission and cosmic infrared background anisotropies (2016)
Journal Article
Planck Collaboration, Aghanim, N., Ashdown, M., Aumont, J., Baccigalupi, C., Ballardini, M., …Zonca, A. (2016). Planck intermediate results. XLVIII. Disentangling Galactic dust emission and cosmic infrared background anisotropies. Astronomy and Astrophysics, 596, Article A109. https://doi.org/10.1051/0004-6361/201629022

Using the Planck 2015 data release (PR2) temperature maps, we separate Galactic thermal dust emission from cosmic infrared background (CIB) anisotropies. For this purpose, we implement a specifically tailored component-separation method, the so-calle... Read More about Planck intermediate results. XLVIII. Disentangling Galactic dust emission and cosmic infrared background anisotropies.

Untangling galaxy components: full spectral bulge–disc decomposition (2016)
Journal Article
Tabor, M., Merrifield, M., Aragón-Salamanca, A., Cappellari, M., Bamford, S. P., & Johnston, E. (2017). Untangling galaxy components: full spectral bulge–disc decomposition. Monthly Notices of the Royal Astronomical Society, 466(2), 2024-2033. https://doi.org/10.1093/mnras/stw3183

To ascertain whether photometric decompositions of galaxies into bulges and discs are astrophysically meaningful, we have developed a new technique to decompose spectral data cubes into separate bulge and disc components, subject only to the constrai... Read More about Untangling galaxy components: full spectral bulge–disc decomposition.

Synchronization of micromasers (2016)
Journal Article
Davis-Tilley, C., & Armour, A. (2016). Synchronization of micromasers. Physical Review A, 94(6), Article 063819. https://doi.org/10.1103/PhysRevA.94.063819

We investigate synchronization effects in quantum self-sustained oscillators theoretically using the micromaser as a model system. We use the probability distribution for the relative phase as a tool for quantifying the emergence of preferred phases... Read More about Synchronization of micromasers.

Feasibility of spatially-offset Raman spectroscopy for in-vitro and in-vivo monitoring mineralisation of bone tissue-engineering scaffolds (2016)
Journal Article
Liao, Z., Sinjab, F., Nommeots-Nomm, A., Jones, J., Ruiz-Cantu, L., Yang, J., …Notingher, I. (2017). Feasibility of spatially-offset Raman spectroscopy for in-vitro and in-vivo monitoring mineralisation of bone tissue-engineering scaffolds. Analytical Chemistry, 89(1), 847-853. https://doi.org/10.1021/acs.analchem.6b03785

We investigated the feasibility of using spatially-offset Raman spectroscopy (SORS) for non-destructive characterisation of bone tissue engineering scaffolds. The deep regions of these scaffolds, or scaffolds implanted subcutaneously in live animals,... Read More about Feasibility of spatially-offset Raman spectroscopy for in-vitro and in-vivo monitoring mineralisation of bone tissue-engineering scaffolds.

Far-field resonance fluorescence from a dipole-interacting laser-driven cold atomic gas (2016)
Journal Article
Jones, R., Saint, R., & Olmos, B. (in press). Far-field resonance fluorescence from a dipole-interacting laser-driven cold atomic gas. Journal of Physics B: Atomic, Molecular and Optical Physics, 50(1), https://doi.org/10.1088/1361-6455/50/1/014004

We analyze the temporal response of the fluorescence light that is emitted from a dense gas of cold atoms driven by a laser. When the average interatomic distance is comparable to the wavelength of the photons scattered by the atoms, the system exhib... Read More about Far-field resonance fluorescence from a dipole-interacting laser-driven cold atomic gas.

Galaxy formation through cosmic recycling (2016)
Journal Article
Hatch, N. (2016). Galaxy formation through cosmic recycling. Science, 354(6316), 1102-1103. https://doi.org/10.1126/science.aah6255

Extremely massive galaxies are seen in the young universe, but their presence is puzzling because we do not yet understand how they became so massive so quickly. How do they get enough fuel to form stars so rapidly? The raw fuel for forming stars is... Read More about Galaxy formation through cosmic recycling.

Photodegradation of organic pollutants RhB dye using UV simulated sunlight on ceria based TiO2 nanomaterials for antibacterial applications (2016)
Journal Article
Kasinathan, K., Kennedy, J., Elayaperumal, M., Henini, M., & Malik, M. (2016). Photodegradation of organic pollutants RhB dye using UV simulated sunlight on ceria based TiO2 nanomaterials for antibacterial applications. Scientific Reports, 6(38064), https://doi.org/10.1038/srep38064

To photo-catalytically degrade RhB dye using solar irradiation, CeO2 doped TiO2 nanocomposites were synthesized hydrothermally at 700 °C for 9 hrs. All emission spectra showed a prominent band centered at 442 nm that was attributed to oxygen related... Read More about Photodegradation of organic pollutants RhB dye using UV simulated sunlight on ceria based TiO2 nanomaterials for antibacterial applications.