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- W3103221465 endingPage "021" @default.
- W3103221465 startingPage "021" @default.
- W3103221465 abstract "Magnification bias is a gravitational lensing effect that is normally overlooked because it is considered sub-optimal in comparison with the lensing shear. Thanks to the demonstrated optimal characteristics of the sub-millimetre galaxies (SMGs) for lensing analysis, in this work we were able to measure the magnification bias produced by a sample of QSOs acting as lenses, $0.2<z<1.0$, on the SMGs observed by Herschel at $1.2<z<4.0$. Two different methodologies were successfully applied: the traditional cross-correlation function approach and the Davis-Peebles estimator through stacking technique. The second one was found to be more robust for analysing the strong lensing regime ($<20-30$ arcsec in our case) and provides the possibility to take into account the positional errors of the sources in our samples. From the halo modelling of the cross-correlation function, the halo mass where the QSOs acting as lenses are located was estimated to be greater than $log_{10}{(M_{min}/M_odot)} > 13.6_{-0.4}^{+0.9}$, also confirmed by the mass density profile analysis ($M_{200c}sim 10^{14} M_odot$). These mass values indicate that we are observing the lensing effect of a cluster size halo signposted by the QSOs, as in previous studies of the magnification bias. Moreover, we were able to estimate the lensing convergence, $kappa(theta)$, for our magnification bias measurements down to a few kpcs. The derived mass density profile is in good agreement with a Navarro-Frank-White (NFW) profile. We also attempt an estimation of the halo mass and the concentration parameters, obtaining $M_{NFW}=1.0^{+0.4}_{-0.2}times10^{14} M_odot$ and $C=3.5_{-0.3}^{+0.5}$. This concentration value is rather low and it would indicate that the cluster halos around these QSOs are unrelaxed. However, higher concentration values still provides a compatible fit to the data." @default.
- W3103221465 created "2020-11-23" @default.
- W3103221465 creator A5011274823 @default.
- W3103221465 creator A5042132634 @default.
- W3103221465 creator A5055298938 @default.
- W3103221465 creator A5058965809 @default.
- W3103221465 creator A5061666272 @default.
- W3103221465 creator A5065328861 @default.
- W3103221465 creator A5066193402 @default.
- W3103221465 creator A5067929455 @default.
- W3103221465 creator A5087277528 @default.
- W3103221465 date "2019-09-12" @default.
- W3103221465 modified "2023-10-01" @default.
- W3103221465 title "QSOs sigposting cluster size halos as gravitational lenses: halo mass, projected mass density profile and concentration at z∼0.7" @default.
- W3103221465 cites W1657498623 @default.
- W3103221465 cites W1689724178 @default.
- W3103221465 cites W1871073386 @default.
- W3103221465 cites W1982961361 @default.
- W3103221465 cites W1983961944 @default.
- W3103221465 cites W1988476153 @default.
- W3103221465 cites W1993987614 @default.
- W3103221465 cites W1994550968 @default.
- W3103221465 cites W1996932846 @default.
- W3103221465 cites W2011301426 @default.
- W3103221465 cites W2018719255 @default.
- W3103221465 cites W2023873184 @default.
- W3103221465 cites W2025634246 @default.
- W3103221465 cites W2031076586 @default.
- W3103221465 cites W2044303127 @default.
- W3103221465 cites W2048410244 @default.
- W3103221465 cites W2050975282 @default.
- W3103221465 cites W2051492359 @default.
- W3103221465 cites W2052024199 @default.
- W3103221465 cites W2052655054 @default.
- W3103221465 cites W2054103046 @default.
- W3103221465 cites W2054522960 @default.
- W3103221465 cites W2061939373 @default.
- W3103221465 cites W2062191374 @default.
- W3103221465 cites W2066703355 @default.
- W3103221465 cites W2082727428 @default.
- W3103221465 cites W2084287642 @default.
- W3103221465 cites W2094993922 @default.
- W3103221465 cites W2096266235 @default.
- W3103221465 cites W2096624375 @default.
- W3103221465 cites W2102069398 @default.
- W3103221465 cites W2103809124 @default.
- W3103221465 cites W2106239882 @default.
- W3103221465 cites W2114442863 @default.
- W3103221465 cites W2126465362 @default.
- W3103221465 cites W2129153205 @default.
- W3103221465 cites W2132531722 @default.
- W3103221465 cites W2132831420 @default.
- W3103221465 cites W2132866814 @default.
- W3103221465 cites W2133308199 @default.
- W3103221465 cites W2135536375 @default.
- W3103221465 cites W2135625048 @default.
- W3103221465 cites W2138093180 @default.
- W3103221465 cites W2141138389 @default.
- W3103221465 cites W2141449818 @default.
- W3103221465 cites W2144910248 @default.
- W3103221465 cites W2148567160 @default.
- W3103221465 cites W2149476548 @default.
- W3103221465 cites W2160983680 @default.
- W3103221465 cites W2162351375 @default.
- W3103221465 cites W2236428259 @default.
- W3103221465 cites W2237178328 @default.
- W3103221465 cites W2468936792 @default.
- W3103221465 cites W2472880262 @default.
- W3103221465 cites W2558173800 @default.
- W3103221465 cites W2563462496 @default.
- W3103221465 cites W2603120754 @default.
- W3103221465 cites W2603624303 @default.
- W3103221465 cites W2613683462 @default.
- W3103221465 cites W2771960498 @default.
- W3103221465 cites W2785683031 @default.
- W3103221465 cites W2899729505 @default.
- W3103221465 cites W2908243271 @default.
- W3103221465 cites W2915397710 @default.
- W3103221465 cites W2964300030 @default.
- W3103221465 cites W3098805361 @default.
- W3103221465 cites W3099575704 @default.
- W3103221465 cites W3099846934 @default.
- W3103221465 cites W3100106758 @default.
- W3103221465 cites W3101567655 @default.
- W3103221465 cites W3102014803 @default.
- W3103221465 cites W3102838516 @default.
- W3103221465 cites W3102918367 @default.
- W3103221465 cites W3103062177 @default.
- W3103221465 cites W3103290764 @default.
- W3103221465 cites W3103877238 @default.
- W3103221465 cites W3103921547 @default.
- W3103221465 cites W3103981595 @default.
- W3103221465 cites W3105018694 @default.
- W3103221465 cites W3106056178 @default.
- W3103221465 cites W3106456019 @default.
- W3103221465 cites W3122899762 @default.
- W3103221465 cites W3124895880 @default.
- W3103221465 cites W4253277089 @default.