2016A&A...596A..77G


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.10CEST12:46:44

2016A&A...596A..77G - Astronomy and Astrophysics, volume 596A, 77-77 (2016/12-1)

Gravitational lens system SDSS J1339+1310: microlensing factory and time delay.

GOICOECHEA L.J. and SHALYAPIN V.N.

Abstract (from CDS):

We spectroscopically re-observed the gravitational lens system SDSS J1339+1310 using OSIRIS on the GTC. We also monitored the r-band variability of the two quasar images (A and B) with the LT over 143 epochs in the period 2009-2016. These new data in both the wavelength and time domains have confirmed that the system is an unusual microlensing factory. The CIV emission line is remarkably microlensed, since the microlensing magnification of B relative to that for A, µBA, reaches a value of 1.4 (∼0.4mag) for its core. Moreover, the B image shows a red wing enhancement of CIV flux (relative to A), and µBA=2 (0.75mag) for the CIV broad-line emission. Regarding the nuclear continuum, we find a chromatic behaviour of µBA, which roughly varies from ∼5 (1.75mag) at 7000Å to ∼6 (1.95mag) at 4000Å. We also detect significant microlensing variability in the r band, and this includes a number of microlensing events on timescales of 50-100d. Fortunately, the presence of an intrinsic 0.7mag dip in the light curves of A and B, permitted us to measure the time delay between both quasar images. This delay is ΔtAB=47+5–6d (1σ confidence interval; A is leading), in good agreement with predictions of lens models.

Abstract Copyright: © ESO, 2016

Journal keyword(s): gravitational lensing: strong - gravitational lensing: micro - quasars: individual: SDSS J1339+1310 - cosmological parameters

VizieR on-line data: <Available at CDS (J/A+A/596/A77): table1.dat table2.dat table3.dat>

Simbad objects: 6

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Number of rows : 6

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 QSO J0158-4325 QSO 01 58 41.3988 -43 25 03.798   17.2 17.2     ~ 57 1
2 [OIH2005] SDSS J1001+5027 gLS 10 01 28.6 +50 27 57           ~ 12 0
3 [IOP2003] SDSS J1004+4112 gLS 10 04 34.91 +41 12 42.8           ~ 23 0
4 QSO J1131-1231 QSO 11 31 51.5387 -12 31 58.716           ~ 205 1
5 [PEI2004] SDSS J1155+6346 gLS 11 55 17.3 +63 46 22           ~ 11 0
6 [IOS2009] SDSS J1339+1310 gLS 13 39 07.138 +13 10 39.65           ~ 4 0

    Equat.    Gal    SGal    Ecl

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2020.07.10-12:46:44

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