Skip to main content

Research Repository

Advanced Search

All Outputs (346)

A Chandra observation of the interacting pair of galaxies NGC 4485/4490 (2002)
Journal Article
Roberts, T., Warwick, R., Ward, M., & Murray, S. (2002). A Chandra observation of the interacting pair of galaxies NGC 4485/4490. Monthly Notices of the Royal Astronomical Society, 337(2), 677-692. https://doi.org/10.1046/j.1365-8711.2002.05950.x

We report the results of a 20-ks Chandra ACIS-S observation of the galaxy pair NGC 4485/4490. This is an interacting system containing a late-type spiral with an enhanced star formation rate (NGC 4490), and an irregular companion that possesses a dis... Read More about A Chandra observation of the interacting pair of galaxies NGC 4485/4490.

Chandra observations of the luminous infrared galaxy NGC 3256 (2002)
Journal Article
Lira, P., Ward, M., Zezas, A., Alonso-Herrero, A., & Ueno, S. (2002). Chandra observations of the luminous infrared galaxy NGC 3256. Monthly Notices of the Royal Astronomical Society, 330(2), 259-278. https://doi.org/10.1046/j.1365-8711.2002.05014.x

We present a detailed analysis of high-resolution Chandra observations of the merger system NGC 3256, the most infrared-luminous galaxy in the nearby universe. The X-ray data show that several discrete sources embedded in complex diffuse emission con... Read More about Chandra observations of the luminous infrared galaxy NGC 3256.

An X-ray/optical study of IXOs (2001)
Journal Article
Roberts, T., Goad, M., Ward, M., Warwick, R., O'Brien, P., Lira, P., & Hands, A. (2001). An X-ray/optical study of IXOs. Bulletin of the American Astronomical Society, 33, 858-

Identifying X-ray Sources in Bulge and Disk Galaxies (2001)
Journal Article
Prestwich, A., Kilgard, R., Krauss, M., Kaaret, P., Zezas, A., McDowell, J., …Trinchieri, G. (2001). Identifying X-ray Sources in Bulge and Disk Galaxies. Bulletin of the American Astronomical Society, 33, 1338-

The identification of an optical counterpart to the super-Eddington X-ray source NGC 5204 X-1 (2001)
Journal Article
Roberts, T., Goad, M., Ward, M., Warwick, R., O'Brien, P., Lira, P., & Hands, A. (2001). The identification of an optical counterpart to the super-Eddington X-ray source NGC 5204 X-1. Monthly Notices of the Royal Astronomical Society, 325(2), L7-L11. https://doi.org/10.1046/j.1365-8711.2001.04659.x

We report the identification of a possible optical counterpart to the super-Eddington X-ray source NGC 5204 X-1. New Chandra data show that the X-ray source is point-like, with a luminosity of 5.2×10^39 erg/s (0.5-8 keV). It displays medium- and long... Read More about The identification of an optical counterpart to the super-Eddington X-ray source NGC 5204 X-1.

Ultraluminous x-ray sources in external galaxies (2001)
Journal Article
King, A., Davies, M., Ward, M., Fabbiano, G., & Elvis, M. (2001). Ultraluminous x-ray sources in external galaxies. Astrophysical Journal Letters, 552(2), L109-L112. https://doi.org/10.1086/320343

We investigate models for the class of ultraluminous nonnuclear X-ray sources (i.e., ultraluminous compact X-ray sources [ULXs]) seen in a number of galaxies and probably associated with star-forming regions. Models in which the X-ray emission is ass... Read More about Ultraluminous x-ray sources in external galaxies.