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X-ray spectral evolution in the ultraluminous X-ray source M33 X-8 (2011)
Journal Article
Middleton, M., Sutton, A., & Roberts, T. (2011). X-ray spectral evolution in the ultraluminous X-ray source M33 X-8. Monthly Notices of the Royal Astronomical Society, 417(1), 464-471. https://doi.org/10.1111/j.1365-2966.2011.19285.x

The bright ultraluminous X-ray source (ULX), M33 X-8, has been observed several times by XMM–Newton, providing us with a rare opportunity to ‘flux bin’ the spectral data and search for changes in the average X-ray spectrum with flux level. The aggreg... Read More about X-ray spectral evolution in the ultraluminous X-ray source M33 X-8.

Massive, red galaxies in a hierarchical universe - II. Clustering of Extremely Red Objects (2011)
Journal Article
Gonzalez-Perez, V., Baugh, C., Lacey, C., & Kim, J. (2011). Massive, red galaxies in a hierarchical universe - II. Clustering of Extremely Red Objects. Monthly Notices of the Royal Astronomical Society, 417(1), 517-531. https://doi.org/10.1111/j.1365-2966.2011.19294.x

We present predictions for the clustering of Extremely Red Objects (EROs) in a Λ cold dark matter universe, using a semi-analytical galaxy formation model in combination with a cosmological N-body simulation. EROs are red, massive galaxies observed a... Read More about Massive, red galaxies in a hierarchical universe - II. Clustering of Extremely Red Objects.

Creation of cosmic structure in the complex galaxy cluster merger Abell 2744 (2011)
Journal Article
Merten, J., Coe, D., Dupke, R., Massey, R., Zitrin, A., Cypriano, E., …Bregman, J. (2011). Creation of cosmic structure in the complex galaxy cluster merger Abell 2744. Monthly Notices of the Royal Astronomical Society, 417(1), 333-347. https://doi.org/10.1111/j.1365-2966.2011.19266.x

We present a detailed strong-lensing, weak-lensing and X-ray analysis of Abell 2744 (z= 0.308), one of the most actively merging galaxy clusters known. It appears to have unleashed ‘dark’, ‘ghost’, ‘bullet’ and ‘stripped’ substructures, each ∼1014 M⊙... Read More about Creation of cosmic structure in the complex galaxy cluster merger Abell 2744.

The most metal-poor damped Lyα systems: insights into chemical evolution in the very metal-poor regime (2011)
Journal Article
Cooke, R., Pettini, M., Steidel, C., Rudie, G., & Nissen, P. (2011). The most metal-poor damped Lyα systems: insights into chemical evolution in the very metal-poor regime. Monthly Notices of the Royal Astronomical Society, 417(2), 1534-1558. https://doi.org/10.1111/j.1365-2966.2011.19365.x

We present a high spectral resolution survey of the most metal-poor damped Lyα absorption systems (DLAs) aimed at probing the nature and nucleosynthesis of the earliest generations of stars. Our survey comprises 22 systems with iron abundance less th... Read More about The most metal-poor damped Lyα systems: insights into chemical evolution in the very metal-poor regime.

Cosmic-ray antiproton constraints on light singlino-like dark matter candidates (2011)
Journal Article
Cerdeño, D., Delahaye, T., & Lavalle, J. (2011). Cosmic-ray antiproton constraints on light singlino-like dark matter candidates. Nuclear Physics B, 854(3), 738-779. https://doi.org/10.1016/j.nuclphysb.2011.09.020

The CoGeNT experiment, dedicated to direct detection of dark matter, has recently released excess events that could be interpreted as elastic collisions of ∼10 GeV dark matter particles, which might simultaneously explain the still mysterious DAMA/LI... Read More about Cosmic-ray antiproton constraints on light singlino-like dark matter candidates.

Far-infrared constraints on the contamination by dust-obscured galaxies of high-z dropout searches (2011)
Journal Article
Boone, F., Schaerer, D., Pelló, R., Lutz, D., Weiss, A., Egami, E., …Menten, K. (2011). Far-infrared constraints on the contamination by dust-obscured galaxies of high-z dropout searches. Astronomy & Astrophysics, 534, Article A124. https://doi.org/10.1051/0004-6361/201117338

The spectral energy distributions (SED) of dusty galaxies at intermediate redshift may look similar to very high-redshift galaxies in the optical/near infrared (NIR) domain. This can lead to the contamination of high-redshift galaxy searches based on... Read More about Far-infrared constraints on the contamination by dust-obscured galaxies of high-z dropout searches.

A halo expansion technique for approximating simulated dark matter haloes (2011)
Journal Article
Lowing, B., Jenkins, A., Eke, V., & Frenk, C. (2011). A halo expansion technique for approximating simulated dark matter haloes. Monthly Notices of the Royal Astronomical Society, 416(4), 2697-2711. https://doi.org/10.1111/j.1365-2966.2011.19222.x

We apply a basis function expansion method to create a time-evolving density/potential approximation of the late growth of simulated N-body dark matter haloes. We demonstrate how the potential of a halo from the Aquarius Project can be accurately rep... Read More about A halo expansion technique for approximating simulated dark matter haloes.

The stellar mass content of submillimeter-selected galaxies (2011)
Journal Article
Hainline, L., Blain, A., Smail, I., Alexander, D., Armus, L., Chapman, S., & Ivison, R. (2011). The stellar mass content of submillimeter-selected galaxies. Astrophysical Journal, 740(2), Article 96. https://doi.org/10.1088/0004-637x/740/2/96

We present a new study of stellar mass in a sample of ~70 submillimeter-selected galaxies (SMGs) with accurate spectroscopic redshifts. We fit combinations of stellar population synthesis models and power laws to the galaxies' observed-frame optical... Read More about The stellar mass content of submillimeter-selected galaxies.

Absolute absorption on the rubidium D1 line including resonant dipole–dipole interactions (2011)
Journal Article
Weller, L., Bettles, R., Siddons, P., Adams, C., & Hughes, I. (2011). Absolute absorption on the rubidium D1 line including resonant dipole–dipole interactions. Journal of Physics B: Atomic, Molecular and Optical Physics, 44(19), Article 195006. https://doi.org/10.1088/0953-4075/44/19/195006

Here we report on measurements of the absolute absorption spectra of dense rubidium vapour on the D1 line in the weak-probe regime for temperatures up to 170 °C and number densities up to 3 × 1014 cm−3. In such vapours, modifications to the homogeneo... Read More about Absolute absorption on the rubidium D1 line including resonant dipole–dipole interactions.