Chandra Observations of Arp 220

S. Shaked, J. C. McDowell, D.~L. Clements, K. Borne, S. Lamb, A. C. Baker, Carole Mundell, Luis Colina

Research output: Contribution to journalArticle


We analyze recent Chandra data of the ultraluminous infrared galaxy Arp 220 and compare it to previously acquired ROSAT data. Chandra's high resolution allows us to see that a concentrated source of hard X-ray emission is located within 2'' (<1 kpc) of the radio/infrared nuclei. By comparing our Chandra data to Hα data, we find that the extended X-ray nebula coincides with the Hα morphology thus supporting the double-bubble ``superwind'' theory of Heckman et al. 1996. Finally, we find that the southern cluster seen in the ROSAT image is resolved into point-like sources, the positions of which coincide with bright optical galaxies. Funding was provided by the NSF REU program.
Original languageEnglish
Pages (from-to)1460
JournalBulletin of the American Astronomical Society
Publication statusPublished - Dec 2000

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    Shaked, S., McDowell, J. C., Clements, D. L., Borne, K., Lamb, S., Baker, A. C., Mundell, C., & Colina, L. (2000). Chandra Observations of Arp 220. Bulletin of the American Astronomical Society, 32, 1460.