期刊
ASTROPHYSICAL JOURNAL
卷 712, 期 2, 页码 1378-1384出版社
IOP PUBLISHING LTD
DOI: 10.1088/0004-637X/712/2/1378
关键词
cosmological parameters; gravitational lensing: strong
资金
- DNRF
We present a simultaneous analysis of 18 galaxy lenses with time-delay measurements. For each lens, we derive mass maps using pixelated simultaneous modeling with shared Hubble constant. We estimate the Hubble constant to be 66(-4)(+6) km s(-1) Mpc(-1) (for a flat universe with Omega(m) = 0.3, Omega(A) = 0.7). We have also selected a subsample of five relatively isolated early-type galaxies, and by simultaneous modeling with an additional constraint on isothermality of their mass profiles, we get H-0 = 76(-3)(+3) km s(-1) Mpc(-1).
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