Terry J. Bridges

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The 2dF Galaxy Redshift Survey has now measured in excess of 160 000 galaxy redshifts. This paper presents the power spectrum of the galaxy distribution, calculated using a direct FFT-based technique. We argue that, within the k-space region 0.02 < ∼ k < ∼ 0.15 h Mpc −1 , the shape of this spectrum should be close to that of the linear density perturbations(More)
We constrain flat cosmological models with a joint likelihood analysis of a new compilation of data from the cosmic microwave background (CMB) and from the 2dF Galaxy Redshift Survey (2dFGRS). Fitting the CMB alone yields a known degeneracy between the Hubble constant h and the matter density Ω m , which arises mainly from preserving the location of the(More)
This paper presents the results of a comprehensive wide field search for tran-siting " Hot Jupiter " planets (gas giant planets with an orbital period 1d≤P≤16d) in the globular cluster 47 Tucanae. Motivated by the detection of the transit in HD209458 and the apparent lack of planetary detections in the core of 47 Tuc by Gilliland and coworkers, this work(More)
We have measured the equivalent width of the Hα emission line for 11006 galaxies brighter than M b = −19 (Ω Λ = 0.7, Ω m = 0.3, H 0 = 70 km s −1 Mpc −1) at 0.05 < z < 0.1 in the 2dF Galaxy Redshift Survey (2dFGRS), in the fields of seventeen known galaxy clusters. The limited redshift range ensures that our results are insensitive to aperture bias, and to(More)
Accepted —. Received —; in original form —. ABSTRACT We present further spectroscopic observations for a sample of galaxies selected in the vacuum ultraviolet (UV) at 2000Å from the FOCA balloon-borne imaging camera of Milliard et al. (1992). This work represents an extension of the initial study of Treyer et al. (1998). Our enlarged catalogue contains 433(More)
In the most prominent current scenario of galaxy formation, galaxies form hierarchically through the merger of smaller systems. Such mergers could leave behind dynamical signatures which may linger long after the event. In particular, the globular cluster system (GCS) of a merging satellite galaxy may remain as a distinct sub-population within the GCS of a(More)
We investigate the dependence of the strength of galaxy clustering on intrinsic luminos-ity using the Anglo-Australian two degree field galaxy redshift survey (2dFGRS). The 2dFGRS is over an order of magnitude larger than previous redshift surveys used to address this issue. We measure the projected two-point correlation function of galaxies in a series of(More)
The AAOmega project replaces the two 2dF spectrographs, which are mounted on the top end of the Anglo Australian Telescope, with a bench mounted double beam spectrograph covering 370 to 950nm. The 2dF positioner, field plate tumbler mechanism, and fiber retractors will be retained. The new spectrograph will be fed by 392 fibers from either of the two 2dF(More)