Outputs (43)

The clustering and halo masses of star-forming galaxies at z<1 (2014)
Journal Article
Dolley, T., Brown, M. J. I., Weiner, B. J., Brodwin, M., Kochanek, C. S., Pimbblet, K. A., Palamara, D. P., Jannuzi, B. T., Dey, A., Atlee, D. W., & Beare, R. (2014). The clustering and halo masses of star-forming galaxies at z

We present clustering measurements and halo masses of star-forming galaxies at 0.2 < z < 1.0. After excluding active galactic nuclei (AGNs), we construct a sample of 22,553 24 μm sources selected from 8.42 deg2 of the Spitzer MIPS AGN and Galaxy Evol... Read More about The clustering and halo masses of star-forming galaxies at z<1.

New insights on Ba overabundance in open clusters : evidence for the intermediate neutron-capture process at play? (2014)
Journal Article
Mishenina, T., Pignatari, M., Carraro, G., Kovtyukh, V., Monaco, L., Korotin, S., Shereta, E., Yegorova, I., & Herwig, F. (2015). New insights on Ba overabundance in open clusters : evidence for the intermediate neutron-capture process at play?. Monthly notices of the Royal Astronomical Society, 446(4), 3651-3668. https://doi.org/10.1093/mnras/stu2337

Recently, an increasing number of studies were devoted to measure the abundances of neutron-capture elements heavier than iron in stars belonging to Galactic Open Clusters (OCs). OCs span a sizeable range in metallicity (−0.6 ≤ [Fe/H] ≤ +0.4), and th... Read More about New insights on Ba overabundance in open clusters : evidence for the intermediate neutron-capture process at play?.

An accurate new method of calculating absolute magnitudes and K-corrections applied to the Sloan filter set (2014)
Journal Article
Beare, R., Brown, M. J. I., & Pimbblet, K. (2014). An accurate new method of calculating absolute magnitudes and K-corrections applied to the Sloan filter set. The Astrophysical journal, 797(2), Article ARTN 104. https://doi.org/10.1088/0004-637x/797/2/104

We describe an accurate new method for determining absolute magnitudes, and hence also K-corrections, that is simpler than most previous methods, being based on a quadratic function of just one suitably chosen observed color. The method relies on the... Read More about An accurate new method of calculating absolute magnitudes and K-corrections applied to the Sloan filter set.

Spectroscopic signatures of extratidal stars around the globular clusters NGC 6656 (M 22), NGC 3201, and NGC 1851 from RAVE (2014)
Journal Article
Kunder, A., Bono, G., Piffl, T., Steinmetz, M., Grebel, E. K., Anguiano, B., Freeman, K., Kordopatis, G., Zwitter, T., Scholz, R., Gibson, B. K., Bland-Hawthorn, J., Seabroke, G., Boeche, C., Siebert, A., Wyse, R. F. G., Bienaymé, O., Navarro, J., Siviero, A., Minchev, I., …Helmi, A. (2014). Spectroscopic signatures of extratidal stars around the globular clusters NGC 6656 (M 22), NGC 3201, and NGC 1851 from RAVE. Astronomy and Astrophysics, 572, A30. https://doi.org/10.1051/0004-6361/201424113

© ESO, 2014. Context. Stellar population studies of globular clusters have suggested that the brightest clusters in the Galaxy might actually be the remnant nuclei of dwarf spheroidal galaxies. If the present Galactic globular clusters formed within... Read More about Spectroscopic signatures of extratidal stars around the globular clusters NGC 6656 (M 22), NGC 3201, and NGC 1851 from RAVE.

Shapley Supercluster Survey: Galaxy evolution from filaments to cluster cores (2014)
Journal Article
Merluzzi, P., Busarello, G., Haines, C. P., Mercurio, A., Okabe, N., Pimbblet, K. J., Dopita, M. A., Grado, A., Limatola, L., Bourdin, H., Mazzotta, P., Capaccioli, M., Napolitano, N. R., & Schipani, P. (2015). Shapley Supercluster Survey: Galaxy evolution from filaments to cluster cores. Monthly notices of the Royal Astronomical Society, 446(1), 803-822. https://doi.org/10.1093/mnras/stu2085

We present an overview of a multiwavelength survey of the Shapley Supercluster (SSC; z ∼ 0.05) covering a contiguous area of 260 h−2 70 Mpc² including the supercluster core. The project main aim is to quantify the influence of cluster-scale mass asse... Read More about Shapley Supercluster Survey: Galaxy evolution from filaments to cluster cores.

Weighing the local dark matter with RAVE red clump stars (2014)
Journal Article
Bienaymé, O., Famaey, B., Siebert, A., Freeman, K. C., Gibson, B. K., Gilmore, G., Grebel, E. K., Bland-Hawthorn, J., Kordopatis, G., Munari, U., Navarro, J. F., Parker, Q., Reid, W., Seabroke, G. M., Siviero, A., Steinmetz, M., Watson, F., Wyse, R. F. G., & Zwitter, T. (2014). Weighing the local dark matter with RAVE red clump stars. Astronomy and Astrophysics, 571, A92. https://doi.org/10.1051/0004-6361/201424478

We determine the Galactic potential in the solar neigbourhood from RAVE observations. We select red clump stars for which accurate distances, radial velocities, and metallicities have been measured. Combined with data from the 2MASS and UCAC catalogu... Read More about Weighing the local dark matter with RAVE red clump stars.

Constraining the Galaxy's dark halo with RAVE stars (2014)
Journal Article
Piffl, T., Binney, J., McMillan, P. J., Steinmetz, M., Helmi, A., Wyse, R. F. G., Bienaymé, O., Bland-Hawthorn, J., Freeman, K., Gibson, B., Gilmore, G., Grebel, E. K., Kordopatis, G., Navarro, J. F., Parker, Q., Reid, W. A., Seabroke, G., Siebert, A., Watson, F., & Zwitter, T. (2014). Constraining the Galaxy's dark halo with RAVE stars. Monthly notices of the Royal Astronomical Society, 445(3), 3133-3151. https://doi.org/10.1093/mnras/stu1948

© 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. We use the kinematics of ~200 000 giant stars that lie within ~1.5 kpc of the plane to measure the vertical profile of mass density near the Sun. We... Read More about Constraining the Galaxy's dark halo with RAVE stars.

High-resolution abundance analysis of red giants in the globular cluster NGC 6522 (2014)
Journal Article
Barbuy, B., Chiappini, C., Cantelli, E., Depagne, E., Pignatari, M., Hirschi, R., Cescutti, G., Ortolani, S., Hill, V., Zoccali, M., Minniti, D., Trevisan, M., Bica, E., & Gómez, A. (2014). High-resolution abundance analysis of red giants in the globular cluster NGC 6522. Astronomy and Astrophysics, 570, A76. https://doi.org/10.1051/0004-6361/201424311

© 2014 ESO. Context. The [Sr/Ba] and [Y/Ba] scatter observed in some galactic halo stars that are very metal-poor and in a few individual stars of the oldest known Milky Way globular cluster NGC 6522 have been interpreted as evidence of early enrich... Read More about High-resolution abundance analysis of red giants in the globular cluster NGC 6522.

Prediction of solar activity from solar background magnetic field variations in cycles 21-23 (2014)
Journal Article
Shepherd, S. J., Zharkov, S. I., & Zharkova, V. V. (2014). Prediction of solar activity from solar background magnetic field variations in cycles 21-23. The Astrophysical journal, 795(1), 46. https://doi.org/10.1088/0004-637X/795/1/46

A comprehensive spectral analysis of both the solar background magnetic field (SBMF) in cycles 21-23 and the sunspot magnetic field in cycle 23 reported in our recent paper showed the presence of two principal components (PCs) of SBMF having opposite... Read More about Prediction of solar activity from solar background magnetic field variations in cycles 21-23.

The Lyman α forest as a tool for disentangling non-Gaussianities (2014)
Journal Article
Chongchitnan, S. (2014). The Lyman α forest as a tool for disentangling non-Gaussianities. Journal of cosmology and astroparticle physics, 2014(10), Article ARTN 034. https://doi.org/10.1088/1475-7516/2014/10/034

© 2014 IOP Publishing Ltd and Sissa Medialab srl . Detection of primordial non-Gaussianity will give us an unprecedented detail of the physics of inflation. As observational probes are now exploring new expanses of the inflationary landscape, it is c... Read More about The Lyman α forest as a tool for disentangling non-Gaussianities.

The frequency of anomalously red galaxies in SDSS clusters (2014)
Journal Article
Shearman, O., & Pimbblet, K. A. (2014). The frequency of anomalously red galaxies in SDSS clusters. Publications / Astronomical Society of Australia, 31, Article ARTN e038. https://doi.org/10.1017/pasa.2014.34

We present a systematic photometric search for spectroscopically confirmed anomalously red galaxies members of 748 low redshift clusters between 0.03 < z < 0.17 from the SDSS-C4 cluster catalogue (Miller et al. 2005). For each cluster we spectroscopi... Read More about The frequency of anomalously red galaxies in SDSS clusters.

APASS Landolt-Sloan BVgri photometry of RAVE stars. I. Data, effective temperatures, and reddenings (2014)
Journal Article
Munari, U., Henden, A., Frigo, A., Zwitter, T., Bienaymé, O., Bland-Hawthorn, J., Boeche, C., Freeman, K. C., Gibson, B. K., Gilmore, G., Grebel, E. K., Helmi, A., Kordopatis, G., Levine, S. E., Navarro, J. F., Parker, Q. A., Reid, W., Seabroke, G. M., Siebert, A., Siviero, A., …Williams, M. (2014). APASS Landolt-Sloan BVgri photometry of RAVE stars. I. Data, effective temperatures, and reddenings. Astronomical Journal, 148(5), 81. https://doi.org/10.1088/0004-6256/148/5/81

© 2014. The American Astronomical Society. All rights reserved. We provide AAVSO Photometric All-Sky Survey (APASS) photometry in the Landolt BV and Sloan g′r′i′ bands for all 425,743 stars included in the fourth RAVE Data Release. The internal accur... Read More about APASS Landolt-Sloan BVgri photometry of RAVE stars. I. Data, effective temperatures, and reddenings.

Galaxy And Mass Assembly (GAMA): galaxy close pairs, mergers and the future fate of stellar mass (2014)
Journal Article
Robotham, A. S. G., Driver, S. P., Davies, L. J. M., Hopkins, A. M., Baldry, I. K., Agius, N. K., Bauer, A. E., Bland-Hawthorn, J., Brough, S., Brown, M. J. I., Cluver, M., De Propris, R., Drinkwater, M. J., Holwerda, B. W., Kelvin, L. S., Lara-Lopez, M. A., Liske, J., López-Sánchez, Á. R., Loveday, J., Mahajan, S., …Wilkins, S. M. (2014). Galaxy And Mass Assembly (GAMA): galaxy close pairs, mergers and the future fate of stellar mass. Monthly notices of the Royal Astronomical Society, 444(4), 3986-4008. https://doi.org/10.1093/mnras/stu1604

We use a highly complete subset of the Galaxy And Mass Assembly II (GAMA-II) redshift sample to fully describe the stellar mass dependence of close pairs and mergers between 10⁸ and 10¹² Mʘ. Using the analytic form of this fit we investigate the tota... Read More about Galaxy And Mass Assembly (GAMA): galaxy close pairs, mergers and the future fate of stellar mass.

Chemodynamics of a simulated disc galaxy: Initial mass functions and Type Ia supernova progenitors (2014)
Journal Article
Few, C. G., Courty, S., Gibson, B. K., Michel-Dansac, L., & Calura, F. (2014). Chemodynamics of a simulated disc galaxy: Initial mass functions and Type Ia supernova progenitors. Monthly notices of the Royal Astronomical Society, 444(4), 3845-3862. https://doi.org/10.1093/mnras/stu1709

We trace the formation and advection of several elements within a cosmological adaptive mesh refinement simulation of an L⋆ galaxy. We use nine realizations of the same initial conditions with different stellar initial mass functions (IMFs), mass lim... Read More about Chemodynamics of a simulated disc galaxy: Initial mass functions and Type Ia supernova progenitors.

Lattice gerbe theory (2014)
Journal Article
Lipstein, A. E., & Reid-Edwards, R. A. (2014). Lattice gerbe theory. Journal of High Energy Physics, 2014(9), Article ARTN 034. https://doi.org/10.1007/JHEP09%282014%29034

We formulate the theory of a 2-form gauge field on a Euclidean spacetime lattice. In this approach, the fundamental degrees of freedom live on the faces of the lattice, and the action can be constructed from the sum over Wilson surfaces associated wi... Read More about Lattice gerbe theory.

Kinematic modeling of the milky way using the rave and GCS stellar surveys (2014)
Journal Article
Sharma, S., Bland-Hawthorn, J., Binney, J., Freeman, K. C., Steinmetz, M., Boeche, C., Bienaymé, O., Gibson, B. K., Gilmore, G. F., Grebel, E. K., Helmi, A., Kordopatis, G., Munari, U., Navarro, J. F., Parker, Q. A., Reid, W. A., Seabroke, G. M., Siebert, A., Watson, F., Williams, M. E. K., …Zwitter, T. (2014). Kinematic modeling of the milky way using the rave and GCS stellar surveys. The Astrophysical journal, 793(1), 51. https://doi.org/10.1088/0004-637x/793/1/51

© 2014. The American Astronomical Society. All rights reserved.. We investigate the kinematic parameters of the Milky Way disk using the Radial Velocity Experiment (RAVE) and Geneva-Copenhagen Survey (GCS) stellar surveys. We do this by fitting a kin... Read More about Kinematic modeling of the milky way using the rave and GCS stellar surveys.

Chemical gradients in the Milky Way from the RAVE data: II. Giant stars (2014)
Journal Article
Boeche, C., Siebert, A., Piffl, T., Just, A., Steinmetz, M., Grebel, E. K., Sharma, S., Kordopatis, G., Gilmore, G., Chiappini, C., Freeman, K., Gibson, B. K., Munari, U., Siviero, A., Bienaymé, O., Navarro, J. F., Parker, Q. A., Reid, W., Seabroke, G. M., Watson, F. G., …Zwitter, T. (2014). Chemical gradients in the Milky Way from the RAVE data: II. Giant stars. Astronomy and Astrophysics, 568, Article A71. https://doi.org/10.1051/0004-6361/201423974

Aims. We provide new constraints on the chemo-dynamical models of the Milky Way by measuring the radial and vertical chemical gradients for the elements Mg, Al, Si, Ti, and Fe in the Galactic disc and the gradient variations as a function of the dist... Read More about Chemical gradients in the Milky Way from the RAVE data: II. Giant stars.

MaGICC baryon cycle: The enrichment history of simulated disc galaxies (2014)
Journal Article
Brook, C. B., Stinson, G., Gibson, B. K., Shen, S., Macciò, A. V., Obreja, A., Wadsley, J., & Quinn, T. (2014). MaGICC baryon cycle: The enrichment history of simulated disc galaxies. Monthly notices of the Royal Astronomical Society, 443(4), 3809-3818. https://doi.org/10.1093/mnras/stu1406

Using cosmological galaxy formation simulations from the MaGICC (Making Galaxies in a Cosmological Context) project, spanning stellar mass from ∼107 to 3 × 1010 M⊙, we trace the baryonic cycle of infalling gas from the virial radius through to its ev... Read More about MaGICC baryon cycle: The enrichment history of simulated disc galaxies.

Dwarf galaxies in the Perseus Cluster: further evidence for a disc origin for dwarf ellipticals (2014)
Journal Article
Penny, S. J., Forbes, D. A., Pimbblet, K. A., & Floyd, D. J. E. (2014). Dwarf galaxies in the Perseus Cluster: further evidence for a disc origin for dwarf ellipticals. Monthly notices of the Royal Astronomical Society, 443(4), 3381-3387. https://doi.org/10.1093/mnras/stu1397

We present the results of a Keck-ESI (Echellette Spectrograph and Imager) spectroscopic study of six dwarf elliptical (dE) galaxies in the Perseus Cluster core, and confirm two dwarfs as cluster members for the first time. All six dEs follow the size... Read More about Dwarf galaxies in the Perseus Cluster: further evidence for a disc origin for dwarf ellipticals.

Stellar origin of the ¹⁸²Hf cosmochronometer and the presolar history of solar system matter (2014)
Journal Article
Lugaro, M., Heger, A., Osrin, D., Goriely, S., Zuber, K., Karakas, A. I., Gibson, B. K., Doherty, C. L., Lattanzio, J. C., & Ott, U. (2014). Stellar origin of the ¹⁸²Hf cosmochronometer and the presolar history of solar system matter. Science, 345(6197), 650-653. https://doi.org/10.1126/science.1253338

Among the short-lived radioactive nuclei inferred to be present in the early solar system via meteoritic analyses, there are several heavier than iron whose stellar origin has been poorly understood. In particular, the abundances inferred for ¹⁸²Hf (... Read More about Stellar origin of the ¹⁸²Hf cosmochronometer and the presolar history of solar system matter.