View : 110 Download: 59

Robust strong lensing time delay estimation

Title
Robust strong lensing time delay estimation
Authors
Hojjati A.Kim A.G.Linder E.V.
Ewha Authors
Eric V. Linder
Issue Date
2013
Journal Title
Physical Review D - Particles, Fields, Gravitation and Cosmology
ISSN
1550-7998JCR Link
Citation
Physical Review D - Particles, Fields, Gravitation and Cosmology vol. 87, no. 12
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
Strong gravitational lensing of time variable sources such as quasars and supernovae creates observable time delays between the multiple images. Time delays can provide a powerful cosmographic probe through the "time-delay distance" involving the ratio of lens, source, and lens-source distances. However, light curves of lensed images have measurement gaps, noise, systematics such as microlensing from substructure along an image line of sight, and no a priori functional model, making robust time-delay estimation challenging. Using Gaussian process techniques, we demonstrate success in accurate blind reconstruction of time delays and reduction in uncertainties for real data. © 2013 American Physical Society.
DOI
10.1103/PhysRevD.87.123512
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
Files in This Item:
Robust strong lensing time delay estimation.pdf(363.87 kB) Download
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE