All Outputs (53)

Galaxy Cluster Mass Reconstruction Project: III. The impact of dynamical substructure on cluster mass estimates (2017)
Journal Article
Old, L., Wojtak, R., Pearce, F., Gray, M., Mamon, G., Sifón, C., …Saro, A. (2018). Galaxy Cluster Mass Reconstruction Project: III. The impact of dynamical substructure on cluster mass estimates. Monthly Notices of the Royal Astronomical Society, 475(1), https://doi.org/10.1093/mnras/stx3241

With the advent of wide-field cosmological surveys, we are approaching samples of hundreds of thousands of galaxy clusters. While such large numbers will help reduce statistical uncertainties, the control of systematics in cluster masses is crucial.... Read More about Galaxy Cluster Mass Reconstruction Project: III. The impact of dynamical substructure on cluster mass estimates.

Galaxy And Mass Assembly: the G02 field, Herschel–ATLAS target selection and data release 3 (2017)
Journal Article
Baldry, I., Liske, J., Brown, M., Robotham, A., Driver, S., Dunne, L., …Wilkins, S. (2018). Galaxy And Mass Assembly: the G02 field, Herschel–ATLAS target selection and data release 3. Monthly Notices of the Royal Astronomical Society, 474(3), https://doi.org/10.1093/mnras/stx3042

We describe data release 3 (DR3) of the Galaxy And Mass Assembly (GAMA) survey. The GAMA survey is a spectroscopic redshift and multiwavelength photometric survey in three equatorial regions each of 60.0 deg2 (G09, G12, and G15), and two southern reg... Read More about Galaxy And Mass Assembly: the G02 field, Herschel–ATLAS target selection and data release 3.

Galaxy Zoo: secular evolution of barred galaxies from structural decomposition of multiband images (2017)
Journal Article
Kruk, S. J., Lintott, C. J., Bamford, S. P., Masters, K. L., Simmons, B. D., Häußler, B., …Kelvin, L. (2018). Galaxy Zoo: secular evolution of barred galaxies from structural decomposition of multiband images. Monthly Notices of the Royal Astronomical Society, 473(4), https://doi.org/10.1093/mnras/stx2605

We present the results of two-component (disc+bar) and three-component (disc+bar+bulge) multiwavelength 2D photometric decompositions of barred galaxies in five Sloan Digital Sky Survey (SDSS) bands (ugriz). This sample of ?3500 nearby (z

Galaxy Zoo and SPARCFIRE: constraints on spiral arm formation mechanisms from spiral arm number and pitch angles (2017)
Journal Article
Hart, R. E., Bamford, S. P., Hayes, W. B., Cardamone, C. N., Keel, W. C., Kruk, S. J., …Smethurst, R. J. (2017). Galaxy Zoo and SPARCFIRE: constraints on spiral arm formation mechanisms from spiral arm number and pitch angles. Monthly Notices of the Royal Astronomical Society, 472(2), 2263-2279. https://doi.org/10.1093/mnras/stx2137

In this paper, we study the morphological properties of spiral galaxies, including measurements of spiral arm number and pitch angle. Using Galaxy Zoo 2, a stellar mass-complete sample of 6222 SDSS spiral galaxies is selected. We use the machine visi... Read More about Galaxy Zoo and SPARCFIRE: constraints on spiral arm formation mechanisms from spiral arm number and pitch angles.

The effects of the cluster environment on the galaxy mass-size relation in MACS J1206.2-0847 (2017)
Journal Article
Kuchner, U., Ziegler, B., Verdugo, M., Bamford, S., & Häußler, B. (2017). The effects of the cluster environment on the galaxy mass-size relation in MACS J1206.2-0847. Astronomy and Astrophysics, 604, Article A54. https://doi.org/10.1051/0004-6361/201630252

The dense environment of galaxy clusters strongly influences the nature of galaxies. Their abundance and diversity is imprinted on the stellar-mass–size plane. Here, we study the cause of the size distribution of a sample of 560 spectroscopic members... Read More about The effects of the cluster environment on the galaxy mass-size relation in MACS J1206.2-0847.

Comparing experts and novices in Martian surface feature change detection and identification (2017)
Journal Article
Wardlaw, J., Sprinks, J., Houghton, R., Muller, J., Sidiropoulos, P., Bamford, S., & Marsh, S. (in press). Comparing experts and novices in Martian surface feature change detection and identification. International Journal of Applied Earth Observation and Geoinformation, https://doi.org/10.1016/j.jag.2017.05.014

Change detection in satellite images is a key concern of the Earth Observation field for environmental and climate change monitoring. Satellite images also provide important clues to both the past and present surface conditions of other planets, whic... Read More about Comparing experts and novices in Martian surface feature change detection and identification.

Galaxy Zoo: finding offset discs and bars in SDSS galaxies (2017)
Journal Article
Kruk, S. J., Lintott, C. J., Simmons, B. D., Bamford, S. P., Cardamone, C. N., Fortson, L., …Smethurst, R. J. (2017). Galaxy Zoo: finding offset discs and bars in SDSS galaxies. Monthly Notices of the Royal Astronomical Society, 469(3), 3363-3373. https://doi.org/10.1093/mnras/stx1026

We use multiwavelength Sloan Digital Sky Survey (SDSS) images and Galaxy Zoo morphologies to identify a sample of ∼270 late-type galaxies with an off-centre bar. We measure offsets in the range 0.2–2.5 kpc between the photometric centres of the stell... Read More about Galaxy Zoo: finding offset discs and bars in SDSS galaxies.

Task Workflow Design and its impact on performance and volunteers' subjective preference in Virtual Citizen Science (2017)
Journal Article
Sprinks, J., Wardlaw, J., Houghton, R., Bamford, S., & Morley, J. (2017). Task Workflow Design and its impact on performance and volunteers' subjective preference in Virtual Citizen Science. International Journal of Human-Computer Studies, 104, 50-63. https://doi.org/10.1016/j.ijhcs.2017.03.003

© 2017 The Authors Virtual citizen science platforms allow non-scientists to take part in scientific research across a range of disciplines. What they ask of volunteers varies considerably in terms of task type, variety, user judgement required and u... Read More about Task Workflow Design and its impact on performance and volunteers' subjective preference in Virtual Citizen Science.

Galaxy Zoo: star formation versus spiral arm number (2017)
Journal Article
Hart, R. E., Bamford, S. P., Casteels, K. R., Kruk, S. J., Lintott, C. J., & Masters, K. L. (2017). Galaxy Zoo: star formation versus spiral arm number. Monthly Notices of the Royal Astronomical Society, 468(2), 1850-1863. https://doi.org/10.1093/mnras/stx581

Spiral arms are common features in low-redshift disc galaxies, and are prominent sites of star formation and dust obscuration. However, spiral structure can take many forms: from galaxies displaying two strong ‘grand design’ arms to those with many ‘... Read More about Galaxy Zoo: star formation versus spiral arm number.

OMEGA – OSIRIS Mapping of Emission-line Galaxies in A901/2: II. Environmental influence on integrated star formation properties and AGN activity (2017)
Journal Article
Rodríguez del Pino, B., Aragón-Salamanca, A., Chies-Santos, A. L., Weinzirl, T., Bamford, S. P., Gray, M. E., …Maltby, D. T. (2017). OMEGA – OSIRIS Mapping of Emission-line Galaxies in A901/2: II. Environmental influence on integrated star formation properties and AGN activity. Monthly Notices of the Royal Astronomical Society, 467(4), 4200-4217. https://doi.org/10.1093/mnras/stx228

We present a study of the star formation and AGN activity for galaxies in CP 15051 the Abell 901/2 multicluster system at z ∼ 0.167 as part of the OSIRIS Mapping of Emission-line Galaxies in A901/2 (OMEGA) survey. Using Tuneable Filter data obtained... Read More about OMEGA – OSIRIS Mapping of Emission-line Galaxies in A901/2: II. Environmental influence on integrated star formation properties and AGN activity.

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.

SDSS-IV MaNGA: bulge–disc decomposition of IFU data cubes (BUDDI) (2016)
Journal Article
Johnston, E. J., Häußler, B., Aragón-Salamanca, A., Merrifield, M. R., Bamford, S., Bershady, M. A., …Yan, R. (2017). SDSS-IV MaNGA: bulge–disc decomposition of IFU data cubes (BUDDI). Monthly Notices of the Royal Astronomical Society, 465(2), https://doi.org/10.1093/mnras/stw2823

With the availability of large integral field unit (IFU) spectral surveys of nearby galaxies, there is now the potential to extract spectral information from across the bulges and discs of galaxies in a systematic way. This information can address qu... Read More about SDSS-IV MaNGA: bulge–disc decomposition of IFU data cubes (BUDDI).

Galaxy Zoo: quantitative visual morphological classifications for 48 000 galaxies from CANDELS (2016)
Journal Article
Simmons, B., Lintott, C., Willett, K. W., Masters, K. L., Kartaltepe, J. S., Häußler, B., …Wiklind, T. (2017). Galaxy Zoo: quantitative visual morphological classifications for 48 000 galaxies from CANDELS. Monthly Notices of the Royal Astronomical Society, 464(4), https://doi.org/10.1093/mnras/stw2587

We present quantified visual morphologies of approximately 48 000 galaxies observed in three Hubble Space Telescope legacy fields by the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS) and classified by participants in the Ga... Read More about Galaxy Zoo: quantitative visual morphological classifications for 48 000 galaxies from CANDELS.

Galaxy Zoo: Morphological classifications for 120 000 galaxies in HST legacy imaging (2016)
Journal Article
Willett, K. W., Galloway, M. A., Bamford, S. P., Lintott, C. J., Masters, K. L., Scarlata, C., …Smith, A. M. (2017). Galaxy Zoo: Morphological classifications for 120 000 galaxies in HST legacy imaging. Monthly Notices of the Royal Astronomical Society, 464(4), 4176-4203. https://doi.org/10.1093/mnras/stw2568

© 2016 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. We present the data release paper for the Galaxy Zoo: Hubble (GZH) project. This is the third phase in a large effort to measure reliable, detailed... Read More about Galaxy Zoo: Morphological classifications for 120 000 galaxies in HST legacy imaging.

Galaxy And Mass Assembly (GAMA): galaxy colour gradients versus colour, structure, and luminosity (2016)
Journal Article
Kennedy, R., Bamford, S. P., Häußler, B., Brough, S., Holwerda, B., Hopkins, A. M., …Vulcani, B. (2016). Galaxy And Mass Assembly (GAMA): galaxy colour gradients versus colour, structure, and luminosity. Astronomy and Astrophysics, 593, Article A84. https://doi.org/10.1051/0004-6361/201628715

Using single-component fits to SDSS/UKIDSS images of galaxies in the G09 region of the GAMA survey we study radial colour gradients across the galaxy population. We use the multi-wavelength information provided by MegaMorph analysis of galaxy light p... Read More about Galaxy And Mass Assembly (GAMA): galaxy colour gradients versus colour, structure, and luminosity.

Galaxy Zoo: comparing the demographics of spiral arm number and a new method for correcting redshift bias (2016)
Journal Article
Hart, R. E., Bamford, S. P., Willett, K. W., Masters, K. L., Cardamone, C., Lintott, C. J., …Smethurst, R. J. (2016). Galaxy Zoo: comparing the demographics of spiral arm number and a new method for correcting redshift bias. Monthly Notices of the Royal Astronomical Society, 461(4), https://doi.org/10.1093/mnras/stw1588

The majority of galaxies in the local Universe exhibit spiral structure with a variety of forms. Many galaxies possess two prominent spiral arms, some have more, while others display a many-armed flocculent appearance. Spiral arms are associated with... Read More about Galaxy Zoo: comparing the demographics of spiral arm number and a new method for correcting redshift bias.

EU-FP7-iMARS: ANALYSIS OF MARS MULTI-RESOLUTION IMAGES USING AUTO-COREGISTRATION, DATA MINING AND CROWD SOURCE TECHNIQUES: PROCESSED RESULTS – A FIRST LOOK (2016)
Journal Article
Jan-Peter, M., Yu, T., Panagiotis, S., Klaus, G., Konrad, W., Lida, F., …Bamford, S. (2016). EU-FP7-iMARS: ANALYSIS OF MARS MULTI-RESOLUTION IMAGES USING AUTO-COREGISTRATION, DATA MINING AND CROWD SOURCE TECHNIQUES: PROCESSED RESULTS – A FIRST LOOK. The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XLI-B4, 453-458. https://doi.org/10.5194/isprs-archives-xli-b4-453-2016

Understanding planetary atmosphere-surface exchange and extra-terrestrial-surface formation processes within our Solar System is one of the fundamental goals of planetary science research. There has been a revolution in planetary surface observations... Read More about EU-FP7-iMARS: ANALYSIS OF MARS MULTI-RESOLUTION IMAGES USING AUTO-COREGISTRATION, DATA MINING AND CROWD SOURCE TECHNIQUES: PROCESSED RESULTS – A FIRST LOOK.

Galaxy And Mass Assembly (GAMA): understanding the wavelength dependence of galaxy structure with bulge-disc decompositions (2016)
Journal Article
Kennedy, R., Bamford, S. P., Häußler, B., Baldry, I., Bremer, M., Brough, S., …Vulcani, B. (2016). Galaxy And Mass Assembly (GAMA): understanding the wavelength dependence of galaxy structure with bulge-disc decompositions. Monthly Notices of the Royal Astronomical Society, 460(4), 3458-3471. https://doi.org/10.1093/mnras/stw1176

With a large sample of bright, low-redshift galaxies with optical–near-IR imaging from the GAMA survey we use bulge-disc decompositions to understand the wavelength-dependent behaviour of single-Sersic structural measurements. We denote the variation... Read More about Galaxy And Mass Assembly (GAMA): understanding the wavelength dependence of galaxy structure with bulge-disc decompositions.

Galaxy Zoo: Mergers – Dynamical models of interacting galaxies (2016)
Journal Article
Holincheck, A. J., Wallin, J. F., Borne, K., Fortson, L., Lintott, C., Smith, A. M., …Parrish, M. (2016). Galaxy Zoo: Mergers – Dynamical models of interacting galaxies. Monthly Notices of the Royal Astronomical Society, 459(1), https://doi.org/10.1093/mnras/stw649

The dynamical history of most merging galaxies is not well understood. Correlations between galaxy interaction and star formation have been found in previous studies, but require the context of the physical history of merging systems for full insight... Read More about Galaxy Zoo: Mergers – Dynamical models of interacting galaxies.

The Moon Zoo citizen science project: preliminary results for the Apollo 17 landing site (2016)
Journal Article
Bugiolacchi, R., Bamford, S., Tar, P., Thacker, N., Crawford, I. A., Joy, K. H., …Lintott, C. (2016). The Moon Zoo citizen science project: preliminary results for the Apollo 17 landing site. Icarus, 271, https://doi.org/10.1016/j.icarus.2016.01.021

Moon Zoo is a citizen science project that utilises internet crowd-sourcing techniques. Moon Zoo users are asked to review high spatial resolution images from the Lunar Reconnaissance Orbiter Camera (LROC), onboard NASA's LRO spacecraft, and perform... Read More about The Moon Zoo citizen science project: preliminary results for the Apollo 17 landing site.