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Pranav Charvu

ORCID: 0000-0003-2342-2866
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Contact & Profiles
A5059259556
Research Areas
  • Gamma-ray bursts and supernovae
  • Cosmology and Gravitation Theories
  • Space Science and Extraterrestrial Life
  • Galaxies: Formation, Evolution, Phenomena
  • Astrophysical Phenomena and Observations
  • Big Data Technologies and Applications
  • Stellar, planetary, and galactic studies
  • History and Developments in Astronomy
  • Italy: Economic History and Contemporary Issues

Duke University
 2022

 The Pantheon+ Analysis: Cosmological Constraints
OPENALEX - Publications 
Dillon Brout D. Scolnic B Popovic Adam G. Riess Anthony Carr and 43 more Joe Zuntz Rick Kessler T. M. Davis S. R. Hinton D. O. Jones W. D. Kenworthy Erik R. Peterson Khaled Said G. Taylor Noor Ali P. Armstrong Pranav Charvu Arianna Dwomoh Cole Meldorf A. Palmese Helen Qu Benjamin Rose B. Sánchez C. W. Stubbs M. Vincenzi Charlotte M. Wood P. J. Brown R Chen K. C. Chambers D. A. Coulter Mi Dai G. Dimitriadis A. V. Filippenko R. J. Foley Saurabh W. Jha L Kelsey R. Kirshner A. Möller J. Muir S. Nadathur Y. C. Pan A. Rest C. Rojas-Bravo M. Šako M. R. Siebert M. Smith Benjamin E. Stahl P. Wiseman

We present constraints on cosmological parameters from the Pantheon+ analysis of 1701 light curves 1550 distinct Type Ia supernovae (SNe Ia) ranging in redshift $z=0.001$ to 2.26. This work features an increased sample size, span, and improved treatment systematic uncertainties comparison original Pantheon results a factor two improvement constraining power. For Flat$\Lambda$CDM model, we find $\Omega_M=0.334\pm0.018$ SNe alone. Flat$w_0$CDM measure $w_0=-0.90\pm0.14$ alone, H$_0=73.5\pm1.1$...

10.3847/1538-4357/ac8e04 article EN cc-by The Astrophysical Journal 2022-10-01
 The Pantheon+ Analysis: The Full Data Set and Light-curve Release
OPENALEX - Publications 
D. Scolnic Dillon Brout Anthony Carr Adam G. Riess T. M. Davis and 25 more Arianna Dwomoh D. O. Jones Noor Ali Pranav Charvu R Chen Erik R. Peterson B Popovic Benjamin Rose Charlotte M. Wood P. J. Brown K. C. Chambers D. A. Coulter K. Dettman G. Dimitriadis A. V. Filippenko R. J. Foley Saurabh W. Jha C. D. Kilpatrick R. Kirshner Y. C. Pan A. Rest C. Rojas-Bravo M. R. Siebert Benjamin E. Stahl WeiKang Zheng

Here we present 1701 light curves of 1550 spectroscopically confirmed Type Ia supernovae (SNe Ia) that will be used to infer cosmological parameters as part the Pantheon+ SN analysis and SH0ES (Supernovae H0 for Equation State dark energy) distance-ladder analysis. This effort is one a series works perform an extensive review redshifts, peculiar velocities, photometric calibration, intrinsic-scatter models SNe Ia. The total number curves, which are compiled across 18 different surveys,...

10.3847/1538-4357/ac8b7a article EN cc-by The Astrophysical Journal 2022-10-01
 The Pantheon+ Analysis: Cosmological Constraints
OPENALEX - Publications 
Dillon Brout D. Scolnic B Popovic Adam G. Riess J. Zuntz and 41 more Rick Kessler Antony M. Carr T. M. Davis S. R. Hinton D. O. Jones W. D. Kenworthy Erik R. Peterson Khaled Saïd G. Taylor Noor Ali P. Armstrong Pranav Charvu Arianna Dwomoh A. Palmese Helen Qu Benjamin Rose C. W. Stubbs M. Vincenzi Charlotte M. Wood P. J. Brown Rebecca Chen K. C. Chambers D. A. Coulter Mi Dai G. Dimitriadis A. V. Filippenko R. J. Foley Saurabh W. Jha L Kelsey R. Kirshner A. Möller J. Muir S. Nadathur Yen-Chen Pan A. Rest C. Rojas-Bravo M. Šako M. R. Siebert M. Smith Benjamin E. Stahl P. Wiseman

We present constraints on cosmological parameters from the Pantheon+ analysis of 1701 light curves 1550 distinct Type Ia supernovae (SNe Ia) ranging in redshift $z=0.001$ to 2.26. This work features an increased sample size, span, and improved treatment systematic uncertainties comparison original Pantheon results a factor two improvement constraining power. For Flat$Λ$CDM model, we find $Ω_M=0.334\pm0.018$ SNe alone. Flat$w_0$CDM measure $w_0=-0.90\pm0.14$ alone, H$_0=73.5\pm1.1$ km...

10.48550/arxiv.2202.04077 preprint EN cc-by arXiv (Cornell University) 2022-01-01
 The Pantheon+ Analysis: The Full Dataset and Light-Curve Release
OPENALEX - Publications 
D. Scolnic Dillon Brout Antony M. Carr Adam G. Riess T. M. Davis and 25 more Arianna Dwomoh D. O. Jones Noor Ali Pranav Charvu Rebecca Chen Erik R. Peterson B Popovic Benjamin Rose Charlotte M. Wood P. J. Brown K. C. Chambers D. A. Coulter K. Dettman G. Dimitriadis A. V. Filippenko R. J. Foley Saurabh W. Jha C. D. Kilpatrick R. Kirshner Y. C. Pan A. Rest C. Rojas-Bravo M. R. Siebert Benjamin E. Stahl WeiKang Zheng

Here we present 1701 light curves of 1550 spectroscopically confirmed Type Ia supernovae (SNe Ia) that will be used to infer cosmological parameters as part the Pantheon+ SN analysis and SH0ES (Supernovae H0 for Equation State dark energy) distance-ladder analysis. This effort is one a series works perform an extensive review redshifts, peculiar velocities, photometric calibration, intrinsic-scatter models SNe Ia. The total number curves, which are compiled across 18 different surveys,...

10.48550/arxiv.2112.03863 preprint EN other-oa arXiv (Cornell University) 2021-01-01
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