A DETECTION OF THE INTEGRATED SACHS-WOLFE IMPRINT OF COSMIC SUPERSTRUCTURES USING A MATCHED-FILTER APPROACH

• Published in: Astrophysical journal. Letters Vol. 830; no. 1; p. L19
• Main Authors: Nadathur, Seshadri, Crittenden, Robert
• Format: Journal Article
• Language: English
• Published: United States The American Astronomical Society 10.10.2016
• Subjects: Amplitudes; ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; cosmic background radiation; Cosmic microwave background; COSMOLOGY; cosmology: observations; cosmology: theory; dark energy; DETECTION; Filtering; Filtration; GALAXIES; large-scale structure of universe; NONLUMINOUS MATTER; RELICT RADIATION; SIGNAL-TO-NOISE RATIO; SKY; Sky surveys (astronomy); Superstructures; UNIVERSE

ABSTRACT We present a new method for detection of the integrated Sachs-Wolfe (ISW) imprints of cosmic superstructures on the cosmic microwave background (CMB), based on a matched-filtering approach. The expected signal-to-noise ratio for this method is comparable to that obtained from the full cross...