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19932026
most citedSimulations of Galaxy Formation in a Lambda CDM Universe II: The Fine Structure of Simulated Galactic Disks

594 citations

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18 papers · 1 filter

astro-ph2008★ 26 cited

Molecular gas and dust in Arp 94: The formation of a recycled galaxy in an interacting system

U. Lisenfeld, C. G. Mundell, E. Schinnerer +2

We present new results for the molecular gas, dust emission and the ionized gas in J1023+1952, an HI rich intergalactic star-forming tidal dwarf galaxy candidate. It is located at…

astro-ph2008★ 41 cited

ARTEMiS (Automated Robotic Terrestrial Exoplanet Microlensing Search) - A possible expert-system based cooperative effort to hunt for planets of Earth mass and below

M. Dominik, K. Horne, A. Allan +12

(abridged) The technique of gravitational microlensing is currently unique in its ability to provide a sample of terrestrial exoplanets around both Galactic disk and bulge stars, a…

astro-ph2007★ 30 cited

Uncovering the Near-IR Dwarf Galaxy Population of the Coma Cluster with Spitzer IRAC

L. P. Jenkins, A. E. Hornschemeier, B. Mobasher +2

We present the first results of a Spitzer IRAC (Infrared Array Camera) wide-field survey of the Coma cluster. The observations cover two fields of different galaxy densities; the f…

astro-ph2005★ 60 cited

The Automatic Real-Time GRB Pipeline of the 2-m Liverpool Telescope

C. Guidorzi, A. Monfardini, A. Gomboc +9

The 2-m Liverpool Telescope (LT), owned by Liverpool John Moores University, is located in La Palma (Canary Islands) and operates in fully robotic mode. In 2005, the LT began condu…

astro-ph2004★ 37 cited

The Unusual Tidal Dwarf Candidate in the Merger System NGC 3227/6: Star Formation in a Tidal Shock?

Carole G. Mundell, Phil A. James, Nora Loiseau +3

We report the discovery of active star formation in the HI cloud associated with the interacting Seyfert system NGC 3227/NGC 3226 that was originally identified as a candidate tida…

astro-ph2004★ 14 cited

The Discovery of New Galaxy Members in the NGC 5044 and NGC 1052 Groups

N. P. F. McKay, C. G. Mundell, S. Brough +6

We present the results of neutral hydrogen (HI) observations of the NGC 5044 and NGC 1052 groups, as part of a GEMS (Group Evolution Multiwavelength Study) investigation into the f…

astro-ph2003★ 88 cited

On the nature of the ring-like structure in the outer Galactic disk

Amina Helmi, Julio F. Navarro, Andres Meza +2

We examine the tidal disruption of satellite galaxies in a cosmological simulation of the formation of a disk galaxy in the CDM scenario. We find that the disruption of satellit…

astro-ph2003★ 112 cited

Simulations of Galaxy Formation in a Lambda CDM Universe III: The Dissipative Formation of an Elliptical Galaxy

Andres Meza, Julio F. Navarro, Matthias Steinmetz +1

We examine in detail the dynamical structure of an elliptical galaxy simulated in the Lambda CDM scenario. The morphology of the galaxy evolves dramatically over time in response t…

astro-ph2002★ 594 cited

Simulations of Galaxy Formation in a Lambda CDM Universe II: The Fine Structure of Simulated Galactic Disks

Mario G. Abadi, Julio F. Navarro, Matthias Steinmetz +1

We present a detailed analysis of the dynamical properties of a simulated disk galaxy assembled hierarchically in the Lambda CDM cosmogony. At z=0, two distinct dynamical component…

astro-ph2002★ 433 cited

Simulations of Galaxy Formation in a Lambda CDM Universe I: Dynamical and Photometric Properties of a Simulated Disk Galaxy

Mario G. Abadi, Julio F. Navarro, Matthias Steinmetz +1

We analyze the properties of a disk galaxy simulated with unprecedented numerical resolution in the Lambda CDM cosmogony. The galaxy is assembled through a number of high-redshift…

astro-ph2002★ 117 cited

The Nuclear Regions of the Seyfert Galaxy NGC 4151 - Parsec-scale HI Absorption and a Remarkable Radio Jet

C. G. Mundell, J. M. Wrobel, A. Pedlar +1

Sensitive high angular and linear resolution radio images of the 240-pc radio jet in NGC4151, imaged at linear resolutions of 0.3 to 2.6 pc using the VLBA and phased VLA at 21 cm,…

astro-ph2002★ 148 cited

Chandra Imaging of the X-ray Core of the Virgo Cluster

A. J. Young, A. S. Wilson, C. G. Mundell

We report sub-arcsecond X-ray imaging spectroscopy of M87 and the core of the Virgo cluster with the Chandra X-ray Observatory. The X-ray morphology shows structure on arcsecond (~…

astro-ph2001★ 55 cited

Nuclear gas dynamics in Arp 220 - sub-kiloparsec scale atomic hydrogen disks

C. G. Mundell, P Ferruit, A Pedlar

We present new, high angular resolution (~0.22") MERLIN observations of neutral hydrogen (HI) absorption and 21-cm radio continuum emission across the central ~900 parsecs of the u…

astro-ph2000★ 122 cited

Launching of jets and the vertical structure of accretion disks

Gordon I. Ogilvie, Mario Livio

The launching of magnetohydrodynamic outflows from accretion disks is considered. We formulate a model for the local vertical structure of a thin disk threaded by a poloidal magnet…

astro-ph2000★ 118 cited

An excess of submm sources near 4C41.17: a candidate proto-cluster at z=3.8?

Rob J. Ivison, James S. Dunlop, Ian Smail +3

Biased galaxy-formation theories predict that massive galaxies at high redshifts should act as signposts to high-density environments in the early Universe, which subsequently evol…

astro-ph1999★ 157 cited

Radio Constraints on the Identifications and Redshifts of Submm Galaxies

Ian Smail, R. J. Ivison, F. N. Owen +2

We present deep radio maps from the Very Large Array (VLA) for 16 sources detected in a sub-millimeter (submm) survey of the distant Universe. Our deep VLA 1.4-GHz maps allow us to…

astro-ph1999★ 155 cited

Observations of a z=1.44 Dusty, Ultraluminous Galaxy and Implications for Deep Sub-mm Surveys

A. Dey, J. R. Graham, R. J. Ivison +3

We present new near-IR and optical spectroscopic observations which confirm the redshift of the z=1.44 extremely red object ERO J164502+4626.4 (object 10 of Hu & Ridgway 1994) and…

astro-ph1998★ 11 cited

Discovery of a luminous white dwarf in a young star cluster in the Large Magellanic Cloud

Rebecca A. W. Elson, Steinn Sigurdsson, Jarrod Hurley +2

We have identified a candidate 1-2 x 10^5 year old luminous white dwarf in NGC 1818, a young star cluster in the Large Magellanic Cloud. This discovery strongly constrains the boun…