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Professor Alastair Edge's Outputs (8)

A unique small-scale gravitational arc in A1201 (2003)
Journal Article
Edge, A., Smith, G., Sand, D., Treu, T., Ebeling, H., Allen, S., & van Dokkum, P. (2003). A unique small-scale gravitational arc in A1201. Astrophysical Journal Letters, 599(2), L69-L72. https://doi.org/10.1086/381193

We present a snapshot Hubble Space Telescope (HST) image of the galaxy cluster A1201 (z=0.169), revealing a tangential arc 2 from the brightest cluster galaxy (BCG). Keck Echelle Spectrograph and Imager (ESI) spectroscopy confirms that the arc is gra... Read More about A unique small-scale gravitational arc in A1201.

A Chandra Study of the Complex Structure in the Core of 2A 0335+096 (2003)
Journal Article
Mazzotta, P., Edge, A., & Markevitch, M. (2003). A Chandra Study of the Complex Structure in the Core of 2A 0335+096. Astrophysical Journal, 596(1), 190-203. https://doi.org/10.1086/377633

We present a Chandra observation of the central (r < 200 kpc) region of the cluster of galaxies 2A 0335+096, rich in interesting phenomena. On large scales (r > 40 kpc), the X-ray surface brightness is symmetric and slightly elliptical. The cluster h... Read More about A Chandra Study of the Complex Structure in the Core of 2A 0335+096.

Resolving molecular gas in the central galaxies of cooling flow clusters (2003)
Journal Article
Edge, A., & Frayer, D. (2003). Resolving molecular gas in the central galaxies of cooling flow clusters. Astrophysical Journal Letters, 594(1), L13-L17. https://doi.org/10.1086/378386

We present aperture synthesis images of the CO (1-0) line emission in five central galaxies in cooling flow clusters using the Owens Valley Millimeter Array. Three of the five sources are significantly resolved, but the majority of the emission is fr... Read More about Resolving molecular gas in the central galaxies of cooling flow clusters.

Measuring σ₈ with Cluster Lensing: Biases from Unrelaxed Clusters. (2003)
Journal Article
Smith, G. P., Edge, A. C., Eke, V. R., Nichol, R. C., Smail, I., & Kneib, J. (2003). Measuring σ₈ with Cluster Lensing: Biases from Unrelaxed Clusters. Astrophysical Journal, 590(2), L79-L82. https://doi.org/10.1086/376747

We use gravitational lens models and X-ray spectral analysis of 10 X-ray-luminous galaxy clusters at z sime 0.2 to study the impact of cluster substructure on attempts to normalize the matter power spectrum. We estimate that unrelaxed clusters are 30... Read More about Measuring σ₈ with Cluster Lensing: Biases from Unrelaxed Clusters..

Chandra Observations of the Galaxy Cluster A478: The Interaction of Hot Gas and Radio Plasma in the Core, and an Improved Determination of the Compton y-Parameter (2003)
Journal Article
Sun, M., Jones, C., Murray, S., Allen, S., Fabian, A., & Edge, A. (2003). Chandra Observations of the Galaxy Cluster A478: The Interaction of Hot Gas and Radio Plasma in the Core, and an Improved Determination of the Compton y-Parameter. Astrophysical Journal, 587(2), 619-624. https://doi.org/10.1086/368300

We present the results from a 42 ks Chandra ACIS observation of the galaxy cluster A478. This cluster is generally considered to be highly relaxed. The Chandra image reveals, for the first time, X-ray cavities in the hot gas within the central 15 kpc... Read More about Chandra Observations of the Galaxy Cluster A478: The Interaction of Hot Gas and Radio Plasma in the Core, and an Improved Determination of the Compton y-Parameter.

The discovery of two distant, massive clusters of galaxies in the ROSAT All-Sky Survey (2003)
Journal Article
Edge, A., Ebeling, H., Bremer, M., Röttgering, H., van Haarlem, M., Rengelink, R., & Courtney, N. (2003). The discovery of two distant, massive clusters of galaxies in the ROSAT All-Sky Survey. Monthly Notices of the Royal Astronomical Society, 339(4), 913-924. https://doi.org/10.1046/j.1365-8711.2003.06270.x

We discuss the radio, optical, and X-ray properties of two newly discovered, very X-ray luminous, distant clusters of galaxies. Both systems were noted as cluster candidates in a cross-correlation of data from the WENSS radio survey and the ROSAT All... Read More about The discovery of two distant, massive clusters of galaxies in the ROSAT All-Sky Survey.