The possible detection of high redshift Type II QSOs in deep fields

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dc.creatorMeiksin, Avery
dc.date2005-12-16
dc.date2005-12-19
dc.date.accessioned2026-07-07T06:49:09Z
dc.date.available2026-07-07T06:49:09Z
dc.descriptionThe colours of high redshift Type II QSOs are synthesized from observations of moderate redshift systems. It is shown that Type II QSOs are comparable to starbursts in their success at matching the colours of z_850-dropouts and i_775-drops in the Hubble Ultra Deep Field, and more naturally account for the bluest objects detected. Type II QSOs may also account for some of the i_775-drops detected in the GOODS fields. It is shown that by combining imaging data from the Hubble Space Telescope and the James Webb Space Telescope, it will be possible to clearly separate Type II QSOs from Type I QSOs and starbursts based on their colours. Similarly, it is shown that the UKIDSS ZYJ filters may be used to discriminate high redshift Type II QSOs from other objects. If Type II QSOs are prevalent at high redshifts, then AGN may be major contributors to the re-ionization of the Intergalactic Medium.
dc.description11 pages, 10 figures; to be published in MNRAS; new predictions for corrected UKIDSS UDS limits
dc.identifierhttps://arxiv.org/abs/astro-ph/0512437
dc.identifierhttp://arxiv.org/abs/astro-ph/0512437
dc.identifierMon.Not.Roy.Astron.Soc. 365 (2006) 833-841
dc.identifierdoi:10.1111/j.1365-2966.2005.09746.x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/104232
dc.subjectAstrophysics
dc.titleThe possible detection of high redshift Type II QSOs in deep fields
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