Michelle Doherty

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We present new evidence for mature stellar populations with ages > 100 Myr in massive galaxies (M stellar > 10 10 M ⊙) seen at a time when the Universe was less than 1 Gyr old. We analyse the prominent detections of two z ≈ 6 star-forming galaxies (SBM03#1 & #3) made at wavelengths corresponding to the rest-frame optical using the IRAC camera onboard the(More)
One of the treatments of liver cancer is resection or ablation of one or several tumour and of an area of healthy tissue around it. Computed Tomography (CT) scans are generally used to make the diagnostic and to plan the surgery. The objective is to find the number of tumours, their size and the physical and spatial relationship between the tumours and the(More)
Aims. To study the kinematics and dynamics of the extreme outer halo of M87, the central galaxy in the Virgo cluster, and its transition to the intracluster light (ICL). Methods. We present high resolution FLAMES/VLT spectroscopy of intracluster planetary nebula (PN) candidates, targeting three new fields in the Virgo cluster core with surface brightness(More)
We present preliminary results from a programme to obtain multi-object near-infrared spectroscopy of galaxies at redshifts 0.7 < z < 1.5. We are using the instrument CIRPASS (the Cambridge Infra-Red PAnoramic Survey Spectrograph), in multi-object mode, to survey Hα in galaxies at z ∼ 1. We aim to address the true star formation history of the universe at(More)
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