19.6k citations
- Australian National UniversityAU880 papers
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- Center for Astrophysics Harvard & SmithsonianUS175 papers
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- The University of SydneyAU159 papers
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6 papers · 2 filters
Modeling the Radio Foreground for detection of CMB spectral distortions from Cosmic Dawn and Epoch of Reionization
Mayuri Sathyanarayana Rao, Ravi Subrahmanyan, N Udaya Shankar +1
Cosmic baryon evolution during the Cosmic Dawn and Reionization results in redshifted 21-cm spectral distortions in the cosmic microwave background (CMB). These encode information…
GMOSS: All-sky model of spectral radio brightness based on physical components and associated radiative processes
Mayuri Sathyanarayana Rao, Ravi Subrahmanyan, N Udaya Shankar +1
We present Global MOdel for the radio Sky Spectrum (GMOSS) -- a novel, physically motivated model of the low-frequency radio sky from 22 MHz to 23 GHz. GMOSS invokes different phys…
Host Galaxy Identification for Supernova Surveys
Ravi R. Gupta, Steve Kuhlmann, Eve Kovacs +57
Host galaxy identification is a crucial step for modern supernova (SN) surveys such as the Dark Energy Survey (DES) and the Large Synoptic Survey Telescope (LSST), which will disco…
A 2.4% Determination of the Local Value of the Hubble Constant
Adam G. Riess, Lucas M. Macri, Samantha L. Hoffmann +12
We use the Wide Field Camera 3 (WFC3) on the Hubble Space Telescope (HST) to reduce the uncertainty in the local value of the Hubble constant (H_0) from 3.3% to 2.4%. Improvements…
Sound Speed and Viscosity of Semi-Relativistic Relic Neutrinos
Lawrence M. Krauss, Andrew J. Long
Generalized fluid equations, using sound speed and viscosity as effective parameters, provide a convenient phenomenological formalism for testing th…
Light Curves of 213 Type Ia Supernovae from the ESSENCE Survey
Gautham Narayan, Armin Rest, Brad E. Tucker +34
The ESSENCE survey discovered 213 Type Ia supernovae at redshifts 0.1 < z < 0.81 between 2002 and 2008. We present their R and I-band photometry, measured from images obtained usin…