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• W2106044588 abstract "We report on a NuSTAR and XMM-Newton program that has observed a sample of three extremely luminous, heavily obscured WISE-selected active galactic nuclei (AGNs) at z ∼ 2 across a broad X-ray band (0.1 − 79 keV). The parent sample, selected to be faint or undetected in the WISE 3.4 μm (W1) and 4.6 μm (W2) bands but bright at 12 μm (W3) and 22 μm (W4), are extremely rare, with only ∼1000 so-called W1W2-dropouts across the extragalactic sky. Optical spectroscopy reveals typical redshifts of z ∼ 2 for this population, implying rest-frame mid-IR luminosities of νLν(6 μm) ∼ 6 × 1046 erg s−1 and bolometric luminosities that can exceed Lbol ∼ 1014 L☉. The corresponding intrinsic, unobscured hard X-ray luminosities are L(2–10 keV) ∼ 4 × 1045 erg s−1 for typical quasar templates. These are among the most AGNs known, though the optical spectra rarely show evidence of a broad-line region and the selection criteria imply heavy obscuration even at rest-frame 1.5 μm. We designed our X-ray observations to obtain robust detections for gas column densities NH ⩽ 1024 cm−2. In fact, the sources prove to be fainter than these predictions. Two of the sources were observed by both NuSTAR and XMM-Newton, with neither being detected by NuSTAR (f3–24 keV ≲ 10−13 erg cm−2 s−1), and one being faintly detected by XMM-Newton (f0.5–10 keV ∼ 5 × 10−15 erg cm−2 s−1). A third source was observed only with XMM-Newton, yielding a faint detection (f0.5–10 keV ∼ 7 × 10−15 erg cm−2 s−1). The X-ray data imply these sources are either X-ray weak, or are heavily obscured by column densities NH ≳ 1024 cm−2. The combined X-ray and mid-IR analysis seems to favor this second possibility, implying the sources are extremely obscured, consistent with Compton-thick, luminous quasars. The discovery of a significant population of heavily obscured, extremely luminous AGNs would not conform to the standard paradigm of a receding torus, in which more luminous quasars are less likely to be obscured, and instead suggests that an additional source of obscuration is present in these extreme sources." @default.
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• W2106044588 date "2014-09-29" @default.
• W2106044588 modified "2023-10-17" @default.
• W2106044588 title "<i>NuSTAR</i>AND<i>XMM-NEWTON</i>OBSERVATIONS OF LUMINOUS, HEAVILY OBSCURED,<i>WISE</i>-SELECTED QUASARS AT<i>Z</i>∼ 2" @default.
• W2106044588 cites W1485073943 @default.
• W2106044588 cites W1757987097 @default.
• W2106044588 cites W1965134192 @default.
• W2106044588 cites W1966667130 @default.
• W2106044588 cites W1979252468 @default.
• W2106044588 cites W1981936828 @default.
• W2106044588 cites W1984823803 @default.
• W2106044588 cites W1997779216 @default.
• W2106044588 cites W2000753947 @default.
• W2106044588 cites W2005980864 @default.
• W2106044588 cites W2007596869 @default.
• W2106044588 cites W2015952692 @default.
• W2106044588 cites W2018489450 @default.
• W2106044588 cites W2024319723 @default.
• W2106044588 cites W2025458316 @default.
• W2106044588 cites W2027058913 @default.
• W2106044588 cites W2031211037 @default.
• W2106044588 cites W2036006391 @default.
• W2106044588 cites W2038561135 @default.
• W2106044588 cites W2043661969 @default.
• W2106044588 cites W2044093857 @default.
• W2106044588 cites W2047002529 @default.
• W2106044588 cites W2047342585 @default.
• W2106044588 cites W2052378012 @default.
• W2106044588 cites W2052937506 @default.
• W2106044588 cites W2057843235 @default.
• W2106044588 cites W2060357694 @default.
• W2106044588 cites W2074347757 @default.
• W2106044588 cites W2082230709 @default.
• W2106044588 cites W2083572051 @default.
• W2106044588 cites W2084098739 @default.
• W2106044588 cites W2084830951 @default.
• W2106044588 cites W2090818992 @default.
• W2106044588 cites W2092882252 @default.
• W2106044588 cites W2102519805 @default.
• W2106044588 cites W2103705762 @default.
• W2106044588 cites W2121951232 @default.
• W2106044588 cites W2126353212 @default.
• W2106044588 cites W2152505756 @default.
• W2106044588 cites W2154078330 @default.
• W2106044588 cites W2157142447 @default.
• W2106044588 cites W2159167760 @default.
• W2106044588 cites W2162680611 @default.
• W2106044588 cites W2168912860 @default.
• W2106044588 cites W2171622449 @default.
• W2106044588 cites W3098208149 @default.
• W2106044588 cites W3098975407 @default.
• W2106044588 cites W3099418948 @default.
• W2106044588 cites W3101001111 @default.
• W2106044588 cites W3101161902 @default.
• W2106044588 cites W3101666249 @default.
• W2106044588 cites W3102886674 @default.
• W2106044588 cites W3103694948 @default.
• W2106044588 cites W3104812258 @default.
• W2106044588 cites W3105027473 @default.
• W2106044588 cites W3106288306 @default.
• W2106044588 cites W3106432621 @default.
• W2106044588 cites W3124164584 @default.

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