Professor James Binney FRS: Publications

Testing the mond formula in the Galaxy

Eas Publications Series 20 (2006) 277-278

Authors:

B Famaey, J Binney

Abstract:

The inner Galaxy is completely dominated by baryons, contrary to the predictions of CDM cosmology, whilst the observations are compatible with MOND if the local circular speed is smaller than 220 kms^-1 and the asymptotic circular velocity close to 170 km s^-1. © EAS, EDP Sciences 2006.

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The Radial Velocity Experiment (RAVE): first data release

ArXiv astro-ph/0606211 (2006)

Authors:

M Steinmetz, T Zwitter, A Siebert, FG Watson, KC Freeman, U Munari, R Campbell, M Williams, GM Seabroke, RFG Wyse, QA Parker, O Bienayme, S Roeser, BK Gibson, G Gilmore, EK Grebel, A Helmi, JF Navarro, D Burton, CJP Cass, JA Dawe, K Fiegert, M Hartley, KS Russell, W Saunders, H Enke, J Bailin, J Binney, J Bland-Hawthorn, C Boeche, W Dehnen, DJ Eisenstein, NW Evans, M Fiorucci, JP Fulbright, O Gerhard, U Jauregi, A Kelz, L Mijovic, I Minchev, G Parmentier, J Penarrubia, AC Quillen, MA Read, G Ruchti, R-D Scholz, A Siviero, MC Smith, R Sordo, L Veltz, S Vidrih, R von Berlepsch, BJ Boyle, E Schilbach

Abstract:

We present the first data release of the Radial Velocity Experiment (RAVE), an ambitious spectroscopic survey to measure radial velocities and stellar atmosphere parameters (temperature, metallicity, surface gravity) of up to one million stars using the 6dF multi-object spectrograph on the 1.2-m UK Schmidt Telescope of the Anglo-Australian Observatory (AAO). The RAVE program started in 2003, obtaining medium resolution spectra (median R=7,500) in the Ca-triplet region ($\lambda\lambda$ 8,410--8,795 \AA) for southern hemisphere stars drawn from the Tycho-2 and SuperCOSMOS catalogs, in the magnitude range 9

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Astronomy. Triangulating the galaxy.

Science 311:5757 (2006) 44-45

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Triangulating the galaxy

Science 311:5757 (2006) 44-45

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Clues from microquasars to the origin of radio-loudness of quasars

International Conference Recent Advances in Natural Language Processing, RANLP (2006)

Authors:

C Nipoti, KM Blundell, J Binney

Abstract:

We analysed the long-term variability of four microquasars (GRS 1915+105, Cyg X-1, Cyg X-3, and Sco X-1) in radio and X rays. The results of our analysis indicate the existence of two distinct modes of energy output, which we refer to as the 'coupled' mode and the 'flaring' mode. The coupled mode is responsible for mildly fluctuating, flat-spectrum radio emission, coupled with the X-ray emission; the flaring mode produces powerful, steep-spectrum radio flares, with no significant counterpart in X rays. We find that the fraction of time spent by a typical microquasar in the flaring mode is similar to the fraction of quasars that are radio-loud. This is consistent with the hypothesis that radio-loudness of quasars is a function of the epoch at which the source is observed.

Professor James Binney FRS

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Testing the mond formula in the Galaxy

Authors:

Abstract:

The Radial Velocity Experiment (RAVE): first data release

Authors:

Abstract:

Astronomy. Triangulating the galaxy.

Triangulating the galaxy

Clues from microquasars to the origin of radio-loudness of quasars

Authors:

Abstract:

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Professor James Binney FRS

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Testing the mond formula in the Galaxy

Authors:

Abstract:

The Radial Velocity Experiment (RAVE): first data release

Authors:

Abstract:

Astronomy. Triangulating the galaxy.

Triangulating the galaxy

Clues from microquasars to the origin of radio-loudness of quasars

Authors:

Abstract: