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27 April 2024 |
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A Chandra observation of the z=2.285 galaxy FSC10214+4724: Evidence for a Compton-thick quasar? | | D. M. Alexander
; G. Chartas
; F. E. Bauer
; W. N. Brandt
; C. Simpson
; C. Vignali
; | | Date: |
11 Nov 2004 | | Subject: | astro-ph | | Affiliation: | Cambridge), G. Chartas (Penn State), F. E. Bauer (Cambridge), W. N. Brandt (Penn State), C. Simpson (Durham), and C. Vignali (Bologna | | Abstract: | We present a ~20 ks Chandra ACIS-S observation of the strongly lensed z=2.285 ultra-luminous infrared galaxy FSC10214+4724. Although this observation achieves the equivalent sensitivity of an up-to ~4 Ms Chandra exposure (when corrected for gravitational lensing), the rest-frame 1.6-26.3 keV emission from FSC10214+4724 is weak (L_X~2E42 erg/s for a lensing boost of ~100); a significant fraction of this X-ray emission appears to be due to vigorous star-formation activity. If FSC10214+4724 hosts a quasar, as previously suggested, then it must be obscured by Compton-thick material. We compare FSC10214+4724 to high-redshift SCUBA galaxies and discuss the X-ray identification of Compton-thick AGNs at high redshift. | | Source: | arXiv, astro-ph/0411289 | | Services: | Forum | Review | PDF | Favorites | |
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