The Extended Chandra Deep Field-South Survey: Optical Properties of X-ray Detected Sources
| dc.creator | Virani, Shanil | |
| dc.creator | Treister, Ezequiel | |
| dc.creator | Urry, C. Megan | |
| dc.creator | Gawiser, Eric | |
| dc.creator | Collaboration, the MUSYC | |
| dc.date | 2005-11-02 | |
| dc.date.accessioned | 2026-07-07T06:44:49Z | |
| dc.date.available | 2026-07-07T06:44:49Z | |
| dc.description | The Extended Chandra Deep Field-South (E-CDF-S) survey consists of 4 Chandra ACIS-I pointings and covers ~1100 square arcminutes (~0.3 deg^2) centered on the original CDF-S field to a depth of approximately 228 ks (PI: Niel Brandt; Lehmer et al, 2005). This is the largest Chandra survey ever conducted at such depth. In our analysis (Virani et al, 2005), we detect 651 unique sources -- 587 using a conservative source detection limit and 64 using a lower source detection limit. Of these 651 sources, 561 are detected in the full 0.5--8.0 keV band, 529 in the soft 0.5--2.0 keV band, and 335 in the hard 2.0--8.0 keV band. For point sources near the aim point, the limiting fluxes are approximately $1.7 \times 10^{-16}$ $\rm{erg cm^{-2} s^{-1}}$ and $3.9 \times 10^{-16}$ $\rm{erg cm^{-2} s^{-1}}$ in the 0.5--2.0 keV and 2.0--8.0 keV bands, respectively. We present the optical properties of these X-ray sources, specifically the R-band magnitude distribution and a preliminary spectroscopic redshift distribution. One exciting result is the discovery of 7 new Extreme X-ray-to-Optical flux ratio objects (EXOs) found in the E-CDF-S field. | |
| dc.description | 2 pages, 4 figures; to be published in the proceedings of "The X-ray Universe 2005" conference, San Lorenzo de El Escorial, Madrid, Spain. X-ray catalog and images available from http://www.astro.yale.edu/svirani/ecdfs/ | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0511057 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0511057 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/102875 | |
| dc.subject | Astrophysics | |
| dc.title | The Extended Chandra Deep Field-South Survey: Optical Properties of X-ray Detected Sources | |
| dc.type | text |