Outputs (554)

IC 3639 - A new bona fide Compton-thick AGN unveiled by NuSTAR (2016)
Journal Article
Boorman, P., Gandhi, P., Alexander, D., Annuar, A., Ballantyne, D., Bauer, F., …Zhang, W. (2016). IC 3639 - A new bona fide Compton-thick AGN unveiled by NuSTAR. Astrophysical Journal, 833(2), 245-262. https://doi.org/10.3847/1538-4357/833/2/245

We analyze high-quality NuSTAR observations of the local (z = 0.011) Seyfert 2 active galactic nucleus (AGN) IC 3639, in conjunction with archival Suzaku and Chandra data. This provides the first broadband X-ray spectral analysis of the source, spann... Read More about IC 3639 - A new bona fide Compton-thick AGN unveiled by NuSTAR.

A high repetition rate experimental setup for quantum non-linear optics with cold Rydberg atoms (2016)
Journal Article
Busche, H., Ball, S. W., & Huillery, P. (2016). A high repetition rate experimental setup for quantum non-linear optics with cold Rydberg atoms. European Physical Journal - Special Topics, 225(15), 2839-2861. https://doi.org/10.1140/epjst/e2015-50338-3

Using electromagnetically induced transparency and photon storage, the strong dipolar interactions between Rydberg atoms and the resulting dipole blockade can be mapped onto light fields to realise optical non-linearities and interactions at the sing... Read More about A high repetition rate experimental setup for quantum non-linear optics with cold Rydberg atoms.

Difference-frequency combs in cold atom physics (2016)
Journal Article
Kliese, R., Hoghooghi, N., Puppe, T., Rohde, F., Sell, A., Zach, A., …Jones, M. (2016). Difference-frequency combs in cold atom physics. European Physical Journal - Special Topics, 225(15), 2775-2784. https://doi.org/10.1140/epjst/e2016-60092-0

Optical frequency combs provide the clockwork to relate optical frequencies to radio frequencies. Hence, combs allow optical frequencies to be measured with respect to a radio frequency where the accuracy is limited only by the reference signal. In o... Read More about Difference-frequency combs in cold atom physics.

The lensing and temperature imprints of voids on the cosmic microwave background (2016)
Journal Article
Cai, Y., Neyrinck, M., Mao, Q., Peacock, J. A., Szapudi, I., & Berlind, A. A. (2017). The lensing and temperature imprints of voids on the cosmic microwave background. Monthly Notices of the Royal Astronomical Society, 466(3), 3364-3375. https://doi.org/10.1093/mnras/stw3299

We have searched for the signature of cosmic voids in the cosmic microwave background (CMB), in both the Planck temperature and lensing-convergence maps; voids should give decrements in both. We use ZOBOV voids from the Data Release 12 Sloan Digital... Read More about The lensing and temperature imprints of voids on the cosmic microwave background.

Constraints on galaxy formation models from the galaxy stellar mass function and its evolution (2016)
Journal Article
Rodrigues, L. F. S., Vernon, I., & Bower, R. G. (2017). Constraints on galaxy formation models from the galaxy stellar mass function and its evolution. Monthly Notices of the Royal Astronomical Society, 466(2), 2418-2435. https://doi.org/10.1093/mnras/stw3269

We explore the parameter space of the semi-analytic galaxy formation model GALFORM, studying the constraints imposed by measurements of the galaxy stellar mass function (GSMF) and its evolution. We use the Bayesian emulator method to quickly eliminat... Read More about Constraints on galaxy formation models from the galaxy stellar mass function and its evolution.

HST Hα grism spectroscopy of ROLES: a flatter low-mass slope for the z ˜ 1 SSFR-mass relation (2016)
Journal Article
Ramraj, R., Gilbank, D., Blyth, S., Skelton, R., Glazebrook, K., Bower, R., & Balogh, M. (2017). HST Hα grism spectroscopy of ROLES: a flatter low-mass slope for the z ˜ 1 SSFR-mass relation. Monthly Notices of the Royal Astronomical Society, 466(3), 3143-3160. https://doi.org/10.1093/mnras/stw3262

We present measurements of star formation rates (SFRs) for dwarf galaxies (M* ∼ 108.5 M⊙ M⊙) at z ∼ 1 using near-infrared slitless spectroscopy from the Hubble Space Telescope (HST) by targeting and measuring the luminosity of the Hα emission line. O... Read More about HST Hα grism spectroscopy of ROLES: a flatter low-mass slope for the z ˜ 1 SSFR-mass relation.

The imprint of f(R) gravity on weak gravitational lensing II: Information content in cosmic shear statistics (2016)
Journal Article
Shirasaki, M., Nishimichi, T., Li, B., & Higuchi, Y. (2017). The imprint of f(R) gravity on weak gravitational lensing II: Information content in cosmic shear statistics. Monthly Notices of the Royal Astronomical Society, 466(2), 2402-2417. https://doi.org/10.1093/mnras/stw3254

We investigate the information content of various cosmic shear statistics on the theory of gravity. Focusing on the Hu–Sawicki-type f(R) model, we perform a set of ray-tracing simulations and measure the convergence bispectrum, peak counts and Minkow... Read More about The imprint of f(R) gravity on weak gravitational lensing II: Information content in cosmic shear statistics.

The evolution of the galaxy content of dark matter haloes (2016)
Journal Article
Contreras, S., Zehavi, I., Baugh, C., Padilla, N., & Norberg, P. (2017). The evolution of the galaxy content of dark matter haloes. Monthly Notices of the Royal Astronomical Society, 465(3), 2833-2848. https://doi.org/10.1093/mnras/stw2826

We use the halo occupation distribution (HOD) framework to characterize the predictions from two independent galaxy formation models for the galactic content of dark matter haloes and its evolution with redshift. Our galaxy samples correspond to a ra... Read More about The evolution of the galaxy content of dark matter haloes.

Cluster abundance in chameleon f(R) gravity I: toward an accurate halo mass function prediction (2016)
Journal Article
Cataneo, M., Rapetti, D., Lombriser, L., & Li, B. (2016). Cluster abundance in chameleon f(R) gravity I: toward an accurate halo mass function prediction. Journal of Cosmology and Astroparticle Physics, 2016(12), Article 024. https://doi.org/10.1088/1475-7516/2016/12/024

We refine the mass and environment dependent spherical collapse model of chameleon f(R) gravity by calibrating a phenomenological correction inspired by the parameterized post-Friedmann framework against high-resolution N-body simulations. We employ... Read More about Cluster abundance in chameleon f(R) gravity I: toward an accurate halo mass function prediction.

Connecting the new H.E.S.S. diffuse emission at the Galactic Center with the Fermi GeV excess: A combination of millisecond pulsars and heavy dark matter? (2016)
Journal Article
Lacroix, T., Silk, J., Moulin, E., & Boehm, C. (2016). Connecting the new H.E.S.S. diffuse emission at the Galactic Center with the Fermi GeV excess: A combination of millisecond pulsars and heavy dark matter?. Physical Review D, 94(12), Article 123008. https://doi.org/10.1103/physrevd.94.123008

The H.E.S.S. Collaboration has reported a high-energy spherically symmetric diffuse γ-ray emission in the inner 50 pc of the Milky Way, up to ∼50 TeV. Here, we propose a leptonic model which provides an alternative to the hadronic scenario presented... Read More about Connecting the new H.E.S.S. diffuse emission at the Galactic Center with the Fermi GeV excess: A combination of millisecond pulsars and heavy dark matter?.