2014MNRAS.441.1291C


C.D.S. - SIMBAD4 rel 1.7 - 2020.05.25CEST01:46:40

2014MNRAS.441.1291C - Mon. Not. R. Astron. Soc., 441, 1291-1296 (2014/June-3)

Strong lensing as a test for conformal Weyl gravity.

CUTAJAR D. and ZARB ADAMI K.

Abstract (from CDS):

Conformal Weyl gravity (CWG) predicts galactic rotation curves without invoking dark matter. This makes CWG an interesting candidate theory as an alternative to general relativity (GR). This removal of the necessity for dark matter arises because the exact exterior solution in CWG for a static, spherically symmetric source provides a linear potential γr, which can explain the observed galactic rotation curves with a value for γ of ∼ +10-26/m. Previous work has also shown that CWG can explain lensing observations, but with γ ∼ -10–26/m, in order to ensure converging rays of light rather than diverging ones. Even though different expressions for the angle of deflection have been derived in CWG in order to remove this inconsistency, this article shows that the γ required to fit the lensing data is several orders of magnitude higher than that required to fit galactic rotation curves.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): gravitational lensing: strong

Status at CDS:  

Simbad objects: 18

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Number of rows : 18

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 ACO 2744 ClG 00 14 20.03 -30 23 17.8           ~ 564 0
2 ACO 370 ClG 02 39 50.5 -01 35 08           ~ 635 0
3 ClG 0440+02 ClG 04 43 09.7 +02 10 19     17.03     ~ 117 0
4 ClG 0451-03 ClG 04 54 10.9 -03 01 07     20.0     ~ 326 0
5 ACO S 506 ClG 05 01 04.4 -24 24 41           ~ 57 0
6 2MASX J07473129-1917403 BiC 07 47 31.296 -19 17 40.34   19.60       ~ 393 1
7 ClG 0745-19 ClG 07 47 31.3 -19 17 40           ~ 363 0
8 ClG 1008-12 ClG 10 10 34.1 -12 39 48     18.0     ~ 143 0
9 ACO 963 ClG 10 17 09.6 +39 01 00           ~ 348 0
10 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1016 0
11 ClG J1347-1145 ClG 13 47 33.5 -11 45 42           ~ 461 0
12 ZwCl 1358+6245 ClG 13 59 54.3 +62 30 36     18.5     ~ 347 0
13 ZwCl 1455+2232 ClG 14 57 15.2 +22 20 30     18.62     ~ 260 0
14 ACO 2163 ClG 16 15 34.1 -06 07 26           ~ 517 0
15 ACO 2218 ClG 16 35 54.0 +66 13 00           ~ 777 1
16 ACO 2219 ClG 16 40 22.1 +46 42 20           ~ 314 0
17 ClG 2137-2353 ClG 21 40 12.8 -23 39 27     18.5     ~ 341 0
18 ACO 2390 ClG 21 53 34.6 +17 40 11           ~ 622 2

    Equat.    Gal    SGal    Ecl

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2020.05.25-01:46:40

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