Related papers: The Dark Energy Survey Supernova Program: Investig…

High redshift constraints on dark energy models from the $E_{\rm p,i}$ -- $E_{\rm iso}$ correlation in GRBs

Here we test different models of dark energy beyond the standard cosmological constant scenario. We start considering the CPL parameterization of the equation of state (EOS), then we consider a dark energy scalar field (Quintessense).…

High Energy Astrophysical Phenomena · Physics 2018-02-07 Marek Demianski , Ester Piedipalumbo , Disha Sawant , Lorenzo Amati

Scrutinizing Exotic Cosmological Models Using ESSENCE Supernova Data Combined with Other Cosmological Probes

The first cosmological results from the ESSENCE supernova survey (Wood-Vasey et al. 2007) are extended to a wider range of cosmological models including dynamical dark energy and non-standard cosmological models. We fold in a greater number…

Astrophysics · Physics 2010-11-05 T. M. Davis , E. Mortsell , J. Sollerman , A. C. Becker , S. Blondin , P. Challis , A. Clocchiatti , A. V. Filippenko , R. J. Foley , P. M. Garnavich , S. Jha , K. Krisciunas , R. P. Kirshner , B. Leibundgut , W. Li , T. Matheson , G. Miknaitis , G. Pignata , A. Rest , A. G. Riess , B. P. Schmidt , R. C. Smith , J. Spyromilio , C. W. Stubbs , N. B. Suntzeff , J. L. Tonry , W. M. Wood-Vasey

Studying Type II supernovae as cosmological standard candles using the Dark Energy Survey

Despite vast improvements in the measurement of the cosmological parameters, the nature of dark energy and an accurate value of the Hubble constant (H$_0$) in the Hubble-Lema\^itre law remain unknown. To break the current impasse, it is…

High Energy Astrophysical Phenomena · Physics 2020-05-27 T. de Jaeger , L. Galbany , S. González-Gaitán , R. Kessler , A. V. Filippenko , F. Förster , M. Hamuy , P. J. Brown , T. M. Davis , C. P. Gutiérrez , C. Inserra , G F. Lewis , A. Möller , D. Scolnic , M. Smith , D. Brout , D. Carollo , R. J. Foley , K. Glazebrook , S. R. Hinton , E. Macaulay , B. Nichol , M. Sako , N. E. Sommer , B. E. Tucker , T. M. C. Abbott , M. Aguena , S. Allam , J. Annis , S. Avila , E. Bertin , S. Bhargava , D. Brooks , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , M. Costanzi , M. Crocce , L. N. da Costa , J. De Vicente , S. Desai , H. T. Diehl , P. Doel , A. Drlica-Wagner , T. F. Eifler , J. Estrada , S. Everett , B. Flaugher , P. Fosalba , J. Frieman , J. García-Bellido , E. Gaztanaga , D. Gruen , R. A. Gruendl , J. Gschwend , G. Gutierrez , W. G. Hartley , D. L. Hollowood , K. Honscheid , D. J. James , K. Kuehn , N. Kuropatkin , T. S. Li , M. Lima , M. A. G. Maia , F. Menanteau , R. Miquel , A. Palmese , F. Paz-Chinchón , A. A. Plazas , A. K. Romer , A. Roodman , E. Sanchez , V. Scarpine , M. Schubnell , S. Serrano , I. Sevilla-Noarbe , M. Soares-Santos , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , D. L. Tucker , T. N. Varga , A. R. Walker , J. Weller , R. Wilkinson

Comparing dark energy models with current observational data

We make a comparison for thirteen dark energy (DE) models by using current cosmological observations, including type Ia supernova, baryon acoustic oscillations, and cosmic microwave background. To perform a systematic and comprehensive…

Cosmology and Nongalactic Astrophysics · Physics 2018-07-20 Sixiang Wen , Shuang Wang , Xiaolin Luo

The Complete Light-curve Sample of Spectroscopically Confirmed Type Ia Supernovae from Pan-STARRS1 and Cosmological Constraints from The Combined Pantheon Sample

We present optical light curves, redshifts, and classifications for 365 spectroscopically confirmed Type Ia supernovae (SNe Ia) discovered by the Pan-STARRS1 (PS1) Medium Deep Survey. We detail improvements to the PS1 SN photometry,…

Cosmology and Nongalactic Astrophysics · Physics 2018-06-13 D. M. Scolnic , D. O. Jones , A. Rest , Y. C. Pan , R. Chornock , R. J. Foley , M. E. Huber , R. Kessler , G. Narayan , A. G. Riess , S. Rodney , E. Berger , D. J. Brout , P. J. Challis , M. Drout , D. Finkbeiner , R. Lunnan , R. P. Kirshner , N. E. Sanders , E. Schlafly , S. Smartt , C. W. Stubbs , J. Tonry , W. M. Wood-Vasey , M. Foley , J. Hand , E. Johnson , W. S. Burgett , K. C. Chambers , P. W. Draper , K. W. Hodapp , N. Kaiser , R. P. Kudritzki , E. A. Magnier , N. Metcalfe , F. Bresolin , E. Gall , R. Kotak , M. McCrum , K. W. Smith

Observational constraints on soft dark energy and soft dark matter: challenging $\Lambda$CDM

Soft cosmology is an extension of standard cosmology allowing for a scale-dependent equation-of-state (EoS) parameter in the dark sectors, which is one of the properties of soft materials in condensed-matter physics, that may arise either…

Cosmology and Nongalactic Astrophysics · Physics 2022-12-12 Emmanuel N. Saridakis , Weiqiang Yang , Supriya Pan , Fotios K. Anagnostopoulos , Spyros Basilakos

The effect of different observational data on the constraints of cosmological parameters

The constraints on the $\Lambda$CDM model from type Ia supernova (SNe Ia) data alone and BAO data alone are similar, so it is worthwhile to compare their constraints on the property of dark energy. We apply the SNLS3 compilation of 472 SNe…

Cosmology and Nongalactic Astrophysics · Physics 2013-04-09 Yungui Gong , Qing Gao , Zong-Hong Zhu

A comprehensive comparison of cosmological models from latest observational data

We investigate in detail some popular cosmological models in light of the latest observational data, including the Union2.1 supernovae compilation, the baryon acoustic oscillation measurements from the WiggleZ Dark Energy Survey, the cosmic…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Ke Shi , Yongfeng Huang , Tan Lu

Litmus tests of the flat $\Lambda$CDM model and model-independent measurement of $H_0r_\mathrm{d}$ with LSST and DESI

In this analysis we apply a model-independent framework to test the flat $\Lambda$CDM cosmology using simulated SNIa data from the upcoming Legacy Survey of Space and Time (LSST) and combined with simulated Dark Energy Spectroscopic…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-19 Benjamin L'Huillier , Ayan Mitra , Arman Shafieloo , Ryan E. Keeley , Hanwool Koo

Dark Energy Survey internal consistency tests of the joint cosmological probes analysis with posterior predictive distributions

Beyond-$\Lambda$CDM physics or systematic errors may cause subsets of a cosmological data set to appear inconsistent when analyzed assuming $\Lambda$CDM. We present an application of internal consistency tests to measurements from the Dark…

Cosmology and Nongalactic Astrophysics · Physics 2021-04-01 C. Doux , E. Baxter , P. Lemos , C. Chang , A. Alarcon , A. Amon , A. Campos , A. Choi , M. Gatti , D. Gruen , M. Jarvis , N. MacCrann , Y. Park , J. Prat , M. M. Rau , M. Raveri , S. Samuroff , J. DeRose , W. G. Hartley , B. Hoyle , M. A. Troxel , J. Zuntz , T. M. C. Abbott , M. Aguena , S. Allam , J. Annis , S. Avila , D. Bacon , E. Bertin , S. Bhargava , D. Brooks , D. L. Burke , M. Carrasco Kind , J. Carretero , R. Cawthon , M. Costanzi , L. N. da Costa , M. E. S. Pereira , S. Desai , H. T. Diehl , J. P. Dietrich , P. Doel , S. Everett , I. Ferrero , P. Fosalba , J. Frieman , J. García-Bellido , D. W. Gerdes , T. Giannantonio , R. A. Gruendl , J. Gschwend , G. Gutierrez , S. R. Hinton , D. L. Hollowood , K. Honscheid , E. M. Huff , D. Huterer , B. Jain , D. J. James , E. Krause , K. Kuehn , N. Kuropatkin , O. Lahav , C. Lidman , M. Lima , M. A. G. Maia , F. Menanteau , R. Miquel , R. Morgan , J. Muir , R. L. C. Ogando , A. Palmese , F. Paz-Chinchón , A. A. Plazas , E. Sanchez , V. Scarpine , M. Schubnell , S. Serrano , I. Sevilla-Noarbe , M. Smith , E. Suchyta , M. E. C. Swanson , G. Tarle , C. To , D. L. Tucker , T. N. Varga , J. Weller , R. D. Wilkinson

Constraining Cosmological Parameters with Observational Data Including Weak Lensing Effects

In this paper, we study the cosmological implications of the 100 square degree Weak Lensing survey (the CFHTLS-Wide, RCS, VIRMOS-DESCART and GaBoDS surveys). We combine these weak lensing data with the cosmic microwave background (CMB)…

Astrophysics · Physics 2010-05-07 Hong Li , Jie Liu , Jun-Qing Xia , Lei Sun , Zu-Hui Fan , Charling Tao , Andre Tilquin , Xinmin Zhang

Observational Constraints on the Nature of the Dark Energy: First Cosmological Results from the ESSENCE Supernova Survey

We present constraints on the dark energy equation-of-state parameter, w=P/(rho c^2), using 60 Type Ia supernovae (SNe Ia) from the ESSENCE supernova survey. We derive a set of constraints on the nature of the dark energy assuming a flat…

Astrophysics · Physics 2008-11-26 W. M. Wood-Vasey , G. Miknaitis , C. W. Stubbs , S. Jha , A. G. Riess , P. M. Garnavich , R. P. Kirshner , C. Aguilera , A. C. Becker , J. W. Blackman , S. Blondin , P. Challis , A. Clocchiatti , A. Conley , R. Covarrubias , T. M. Davis , A. V. Filippenko , R. J. Foley , A. Garg , M. Hicken , K. Krisciunas , B. Leibundgut , W. Li , T. Matheson , A. Miceli , G. Narayan , G. Pignata , J. L. Prieto , A. Rest , M. E. Salvo , B. P. Schmidt , R. C. Smith , J. Sollerman , J. Spyromilio , J. L. Tonry , N. B. Suntzeff , A. Zenteno

Is the evidence for dark energy secure?

Several kinds of astronomical observations, interpreted in the framework of the standard Friedmann-Robertson-Walker cosmology, have indicated that our universe is dominated by a Cosmological Constant. The dimming of distant Type Ia…

Astrophysics · Physics 2014-11-18 Subir Sarkar

The Pantheon Sample Analysis of Cosmological Constraints under New Models

In this paper, the cosmological parameters are determined by applying six cosmological models to fit the magnitude-redshift relation of the Pantheon Sample consisting of 1048 Type Ia supernovae (SNe Ia) in the range of $0.01 < z < 2.26$.…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-18 Peifeng Peng , Nigel Metcalfe

Looking beyond lambda

Widening cracks are appearing in the $\Lambda$CDM model and it is becoming increasingly clear that the standard cosmological model struggles to describe the full expansion history of the Universe as revealed by the Cosmic Microwave…

Cosmology and Nongalactic Astrophysics · Physics 2025-09-03 Alexie Leauthaud , Adam Riess

Constraints on cosmological parameters

A cosmological model with total density close to critical (and flat geometry), dominated by dark matter and dark energy of unknown nature, and consistent with the basic predictions of the inflationary scenario is a very good fit to a…

Astrophysics · Physics 2007-05-23 A. Balbi

Present and future evidence for evolving dark energy

We compute the Bayesian evidences for one- and two-parameter models of evolving dark energy, and compare them to the evidence for a cosmological constant, using current data from Type Ia supernova, baryon acoustic oscillations, and the…

Astrophysics · Physics 2008-11-26 Andrew R Liddle , Pia Mukherjee , David Parkinson , Yun Wang

Cyber-infrastructure to Support Science and Data Management for the Dark Energy Survey

The Dark Energy Survey (DES; operations 2009-2015) will address the nature of dark energy using four independent and complementary techniques: (1) a galaxy cluster survey over 4000 deg2 in collaboration with the South Pole Telescope…

Astrophysics · Physics 2007-05-23 C. Ngeow , J. J. Mohr , T. Alam , W. A. Barkhouse , C. Beldica , D. Cai , G. Daues , R. Plante , J. Annis , H. Lin , D. Tucker , R. C. Smith

The Dark Energy Survey: more than dark energy - an overview

This overview article describes the legacy prospect and discovery potential of the Dark Energy Survey (DES) beyond cosmological studies, illustrating it with examples from the DES early data. DES is using a wide-field camera (DECam) on the…

Cosmology and Nongalactic Astrophysics · Physics 2016-11-18 Dark Energy Survey Collaboration , T. Abbott , F. B. Abdalla , J. Aleksic , S. Allam , A. Amara , D. Bacon , E. Balbinot , M. Banerji , K. Bechtol , A. Benoit-Levy , G. M. Bernstein , E. Bertin , J. Blazek , C. Bonnett , S. Bridle , D. Brooks , R. J. Brunner , E. Buckley-Geer , D. L. Burke , G. B. Caminha , D. Capozzi , J. Carlsen , A. Carnero-Rosell , M. Carollo , M. Carrasco-Kind , J. Carretero , F. J. Castander , L. Clerkin , T. Collett , C. Conselice , M. Crocce , C. E. Cunha , C. B. D'Andrea , L. N. da Costa , T. M. Davis , S. Desai , H. T. Diehl , J. P. Dietrich , S. Dodelson , P. Doel , A. Drlica-Wagner , J. Estrada , J. Etherington , A. E. Evrard , J. Fabbri , D. A. Finley , B. Flaugher , R. J. Foley , P. Rosalba , J. Frieman , J. Garcia-Bellido , E. Gaztanaga , D. W. Gerdes , T. Giannantonio , D. A. Goldstein , D. Gruen , R. A. Gruendl , P. Guarnieri , G. Gutierrez , W. Hartley , K. Honscheid , B. Jain , D. J. James , T. Jeltema , S. Jouvel , R. Kessler , A. King , D. Kirk , R. Kron , K. Kuehn , N. Kuropatkin , O. Lahav , T. S. Li , M. Lima , H. Lin , M. A. G. Maia , M. Makler , M. Manera , C. Maraston , J. L. Marshall , P. Martini , R. G. McMahon , P. Melchior , A. Merson , C. J. Miller , R. Miquel , J. J. Mohr , X. Morice-Atkinson , K. Naidoo , E. Neilsen , R. C. Nichol , B. Nord , R. Ogando , F. Ostrovski , A. Palmese , A. Papadopoulos , H. Peiris , J. Peoples , W. J. Percival , A. A. Plazas , S. L. Reed , A. Refregier , A. K. Romer , A. Roodman , A. Ross , E. Rozo , E. S. Rykoff , I. Sadeh , M. Sako , C. Sanchez , E. Sanchez , B. Santiago , V. Scarpine , M. Schubnell , I. Sevilla-Noarbe , E. Sheldon , M. Smith , R. C. Smith , M. Soares-Santos , F. Sobreira , M. Soumagnac , E. Suchyta , M. Sullivan , M. Swanson , G. Tarle , J. Thaler , D. Thomas , R. C. Thomas , D. Tucker , J. D. Vieira , V. Vikram , A. R. Walker , R. H. Wechsler , J. Weller , W. Wester , L. Whiteway , H. Wilcox , B. Yanny , Y. Zhang , J. Zuntz

Integrated cosmological probes: Concordance quantified

Assessing the consistency of parameter constraints derived from different cosmological probes is an important way to test the validity of the underlying cosmological model. In an earlier work [Nicola et al., 2017], we computed constraints…

Cosmology and Nongalactic Astrophysics · Physics 2017-11-01 Andrina Nicola , Adam Amara , Alexandre Refregier