2005MNRAS.357..135P

Query : 2005MNRAS.357..135P

2005MNRAS.357..135P - Mon. Not. R. Astron. Soc., 357, 135-144 (2005/February-2)

The influence of gravitational lensing on the spectra of lensed quasi-stellar objects.

POPOVIC L.C. and CHARTAS G.

Abstract (from CDS):

We consider the influence of (milli/micro)lensing on the spectra of lensed quasi-stellar objects (QSOs). We propose a method for the observational detection of microlensing in the spectra of lensed QSOs and apply it to the spectra of three lensed QSOs (PG 1115+080, Q1413+117 and Q0957+561) observed with the Hubble Space Telescope. We find that the flux ratio between images A1 and A2 of PG 1115+080 is wavelength-dependent and shows differential magnification between the emission lines and the continuum. We interpret this magnification as arising from millilensing. We also find that the temporal variations in the continuum of image C of Q1413+117 may be caused by microlensing, while the temporal variation observed in Q0957+561 was probably an intrinsic one.

Abstract Copyright: 2005 RAS

Journal keyword(s): gravitational lensing - quasars: emission lines - quasars: individual: PG 1115+080 - quasars: individual: Q0957+561 - quasars: individual: Q1413+117

Simbad objects: 15

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Number of rows : 15
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 8C 0958+561 QSO 10 01 20.6918953728 +55 53 55.593949272   17.16 16.95     ~ 757 3
2 QSO B0957+5608B QSO 10 01 20.8375795656 +55 53 49.543053252   17.16 16.95     ~ 280 1
3 QSO B1115+080A QSO 11 18 16.951 +07 45 58.23   16.61 16.44     ~ 703 2
4 QSO B1115+080B QSO 11 18 16.98 +07 45 55.7   18.74 18.1     ~ 53 0
5 QSO B1115+080C QSO 11 18 17.00 +07 45 57.7   18.26 17.6     ~ 57 0
6 [YDG81] QSO 1115+080 A1 LeI 11 18 17.09 +07 45 55.7           ~ 48 0
7 [YDG81] QSO 1115+080 A2 LeI 11 18 17.10 +07 45 56.1           ~ 46 0
8 QSO J1415+1129 QSO 14 15 46.25 +11 29 43.4   17.63 17.23     ~ 678 0
9 NAME Cloverleaf C LeI 14 15 46.26 +11 29 43.4           ~ 32 0
10 NAME Cloverleaf A LeI 14 15 46.29 +11 29 42.7           ~ 33 0
11 NAME Cloverleaf D LeI 14 15 46.31 +11 29 43.7           ~ 31 0
12 NAME Cloverleaf B LeI 14 15 46.34 +11 29 42.9           ~ 34 0
13 NGC 5548 Sy1 14 17 59.5400291832 +25 08 12.603122268   14.35 13.73     ~ 2895 0
14 QSO J2240+0321 QSO 22 40 30.234 +03 21 30.63           ~ 705 1
15 Z 378-15 AGN 22 40 30.23447 +03 21 30.6290           ~ 636 0

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