Outputs (11)

Evidence for explosive silicic volcanism on the Moon from the extended distribution of thorium near the Compton-Belkovich Volcanic Complex (2014)
Journal Article
Wilson, J., Eke, V., Massey, R., Elphic, R., Jolliff, B., Lawrence, D., …Teodoro, L. (2015). Evidence for explosive silicic volcanism on the Moon from the extended distribution of thorium near the Compton-Belkovich Volcanic Complex. Journal of Geophysical Research: Planets, 120(1), 92-108. https://doi.org/10.1002/2014je004719

We reconstruct the abundance of thorium near the Compton-Belkovich Volcanic Complex on the Moon, using data from the Lunar Prospector Gamma Ray Spectrometer. We enhance the resolution via a pixon image reconstruction technique and find that the thori... Read More about Evidence for explosive silicic volcanism on the Moon from the extended distribution of thorium near the Compton-Belkovich Volcanic Complex.

Image Analysis for Cosmology: Shape Measurement Challenge Review & Results from the Mapping Dark Matter Challenge (2014)
Journal Article
Kitching, T., Rhodes, J., Heymans, C., Massey, R., Liu, Q., Cobzarenco, M., Cragin, B., Hassaine, A., Kirkby, D., Lok, E., Margala, D., Moser, J., O'Leary, M., Pires, A., & Yurgenson, S. (2015). Image Analysis for Cosmology: Shape Measurement Challenge Review & Results from the Mapping Dark Matter Challenge. Astronomy and computing, 10, 9-21. https://doi.org/10.1016/j.ascom.2014.12.004

In this paper we present results from the Mapping Dark Matter competition that expressed the weak lensing shape measurement task in its simplest form and as a result attracted over 700 submissions in 2 months and a factor of 3 improvement in shape me... Read More about Image Analysis for Cosmology: Shape Measurement Challenge Review & Results from the Mapping Dark Matter Challenge.

Hubble Frontier Fields : the geometry and dynamics of the massive galaxy cluster merger MACSJ0416.1−2403 (2014)
Journal Article
Jauzac, M., Jullo, E., Eckert, D., Ebeling, H., Richard, J., Limousin, M., …Rexroth, M. (2015). Hubble Frontier Fields : the geometry and dynamics of the massive galaxy cluster merger MACSJ0416.1−2403. Monthly Notices of the Royal Astronomical Society, 446(4), 4132-4147. https://doi.org/10.1093/mnras/stu2425

We use a joint optical/X-ray analysis to constrain the geometry and history of the ongoing merging event in the massive galaxy cluster MACSJ0416.1-2403 (z=0.397). Our investigation of cluster substructure rests primarily on a combined strong- and wea... Read More about Hubble Frontier Fields : the geometry and dynamics of the massive galaxy cluster merger MACSJ0416.1−2403.

Characterization of a Commercial, Front-Illuminated Interline Transfer CCD Camera for use as a Guide Camera on a Balloon-Borne Telescope (2014)
Journal Article
Clark, P., Massey, R., Chang, H., Galloway, M., Israel, H., Jones, L., …Susca, S. (2014). Characterization of a Commercial, Front-Illuminated Interline Transfer CCD Camera for use as a Guide Camera on a Balloon-Borne Telescope. Journal of Astronomical Instrumentation, 3(2), Article 1440003. https://doi.org/10.1142/s2251171714400030

We report results obtained during the characterization of a commercial front-illuminated progressive scan interline transfer CCD camera. We demonstrate that the unmodified camera operates successfully in temperature and pressure conditions (-40°C, 4... Read More about Characterization of a Commercial, Front-Illuminated Interline Transfer CCD Camera for use as a Guide Camera on a Balloon-Borne Telescope.

VIS: the visible imager for Euclid (2014)
Presentation / Conference Contribution
Cropper, M., Pottinger, S., Niemi, S., Denniston, J., Cole, R., Szafraniec, M., …Massey, R. (2014). VIS: the visible imager for Euclid. In Space telescopes and instrumentation 2014 : optical, infrared and millimeter wave. https://doi.org/10.1117/12.2055543

Euclid-VIS is the large format visible imager for the ESA Euclid space mission in their Cosmic Vision program, scheduled for launch in 2020. Together with the near infrared imaging within the NISP instrument, it forms the basis of the weak lensing me... Read More about VIS: the visible imager for Euclid.

Hubble Frontier Fields: a high-precision strong-lensing analysis of galaxy cluster MACSJ0416.1-2403 using ∼200 multiple images (2014)
Journal Article
Jauzac, M., Clément, B., Limousin, M., Richard, J., Jullo, E., Ebeling, H., …Rexroth, M. (2014). Hubble Frontier Fields: a high-precision strong-lensing analysis of galaxy cluster MACSJ0416.1-2403 using ∼200 multiple images. Monthly Notices of the Royal Astronomical Society, 443(2), 1549-1554. https://doi.org/10.1093/mnras/stu1355

We present a high-precision mass model of the galaxy cluster MACSJ0416.1-2403, based on a strong-gravitational-lensing analysis of the recently acquired Hubble Space Telescope Frontier Fields (HFF) imaging data. Taking advantage of the unprecedented... Read More about Hubble Frontier Fields: a high-precision strong-lensing analysis of galaxy cluster MACSJ0416.1-2403 using ∼200 multiple images.

On the cross-section of dark matter using substructure infall into galaxy clusters (2014)
Journal Article
Harvey, D., Tittley, E., Massey, R., Kitching, T., Taylor, A., Pike, S., …Nagai, D. (2014). On the cross-section of dark matter using substructure infall into galaxy clusters. Monthly Notices of the Royal Astronomical Society, 441(1), 404-416. https://doi.org/10.1093/mnras/stu337

We develop a statistical method to measure the interaction cross-section of dark matter, exploiting the continuous minor merger events in which small substructures fall into galaxy clusters. We find that by taking the ratio of the distances between t... Read More about On the cross-section of dark matter using substructure infall into galaxy clusters.

The third gravitational lensing accuracy testing (GREAT3) challenge handbook (2014)
Journal Article
Mandelbaum, R., Rowe, B., Bosch, J., Chang, C., Courbin, F., Gill, M., …Schrabback, T. (2014). The third gravitational lensing accuracy testing (GREAT3) challenge handbook. Astrophysical Journal Supplement, 212(1), Article 5. https://doi.org/10.1088/0067-0049/212/1/5

The GRavitational lEnsing Accuracy Testing 3 (GREAT3) challenge is the third in a series of image analysis challenges, with a goal of testing and facilitating the development of methods for analyzing astronomical images that will be used to measure w... Read More about The third gravitational lensing accuracy testing (GREAT3) challenge handbook.

The zCOSMOS redshift survey: evolution of the light in bulges and discs since z ~ 0.8 (2014)
Journal Article
Tasca, L., Tresse, L., Le Fèvre, O., Ilbert, O., Lilly, S., Zamorani, G., …Coppa, G. (2014). The zCOSMOS redshift survey: evolution of the light in bulges and discs since z ~ 0.8. Astronomy & Astrophysics, 564, Article L12. https://doi.org/10.1051/0004-6361/201423699

We studied the chronology of galactic bulge and disc formation by analysing the relative contributions of these components to the B-band rest-frame luminosity density at different epochs. We present the first estimate of the evolution of the fraction... Read More about The zCOSMOS redshift survey: evolution of the light in bulges and discs since z ~ 0.8.

The 400d Galaxy Cluster Survey weak lensing programme. III. Evidence for consistent WL and X-ray masses at z ≈ 0.5 (2014)
Journal Article
Israel, H., Reiprich, T., Erben, T., Massey, R., Sarazin, C., Schneider, P., & Vikhlinin, A. (2014). The 400d Galaxy Cluster Survey weak lensing programme. III. Evidence for consistent WL and X-ray masses at z ≈ 0.5. Astronomy & Astrophysics, 564, Article A129. https://doi.org/10.1051/0004-6361/201322870

Context. Scaling properties of galaxy cluster observables with cluster mass provide central insights into the processes shaping clusters. Calibrating proxies for cluster mass that are relatively cheap to observe will moreover be crucial to harvest th... Read More about The 400d Galaxy Cluster Survey weak lensing programme. III. Evidence for consistent WL and X-ray masses at z ≈ 0.5.

An improved model of charge transfer inefficiency and correction algorithm for the Hubble Space Telescope (2014)
Journal Article
Massey, R., Schrabback, T., Cordes, O., Marggraf, O., Israel, H., Miller, L., …Matias Niemi, S. (2014). An improved model of charge transfer inefficiency and correction algorithm for the Hubble Space Telescope. Monthly Notices of the Royal Astronomical Society, 439(1), 887-907. https://doi.org/10.1093/mnras/stu012

Charge-coupled device (CCD) detectors, widely used to obtain digital imaging, can be damaged by high energy radiation. Degraded images appear blurred, because of an effect known as Charge Transfer Inefficiency (CTI), which trails bright objects as th... Read More about An improved model of charge transfer inefficiency and correction algorithm for the Hubble Space Telescope.