Related papers: The Dark Energy Survey Supernova Program: Light cu…

Photometric Redshifts and Signal-to-Noise

We investigate the impact of photometric signal-to-noise (S/N) on the precision of photometric redshifts in multi-band imaging surveys, using both simulations and real data. We simulate the optical 4-band (BVRz) Deep Lens Survey (DLS,…

Astrophysics · Physics 2009-11-13 V. E. Margoniner , D. M. Wittman

DESI luminous red galaxy samples for cross-correlations

We present two galaxy samples, selected from DESI Legacy Imaging Surveys (LS) DR9, with approximately 20,000 square degrees of coverage and spectroscopic redshift distributions designed for cross-correlations such as with CMB lensing,…

Cosmology and Nongalactic Astrophysics · Physics 2023-12-04 Rongpu Zhou , Simone Ferraro , Martin White , Joseph DeRose , Noah Sailer , Jessica Aguilar , Steven Ahlen , Stephen Bailey , David Brooks , Todd Claybaugh , Kyle Dawson , Axel de la Macorra , Biprateep Dey , Peter Doel , Andreu Font-Ribera , Jaime E. Forero-Romero , Satya Gontcho A Gontcho , Julien Guy , Anthony Kremin , Andrew Lambert , Laurent Le Guillou , Michael Levi , Christophe Magneville , Marc Manera , Aaron Meisner , Ramon Miquel , John Moustakas , Adam D. Myers , Jeffrey A. Newman , Jundan Nie , Will Percival , Mehdi Rezaie , Graziano Rossi , Eusebio Sanchez , David Schlegel , Michael Schubnell , Hee-Jong Seo , Gregory Tarlé , Zhimin Zhou

Cluster Difference Imaging Photometric Survey. I. Light Curves of Stars in Open Clusters from TESS Sectors 6 & 7

The Transiting Exoplanet Survey Satellite (TESS) is providing precise time-series photometry for most star clusters in the solar neighborhood. Using the TESS images, we have begun a Cluster Difference Imaging Photometric Survey (CDIPS), in…

Solar and Stellar Astrophysics · Physics 2019-11-25 L. G. Bouma , J. D. Hartman , W. Bhatti , J. N. Winn , G. Á. Bakos

Gemini Spectroscopy of Supernovae from SNLS: Improving High Redshift SN Selection and Classification

We present new techiques for improving the efficiency of supernova (SN) classification at high redshift using 64 candidates observed at Gemini North and South during the first year of the Supernova Legacy Survey (SNLS). The SNLS is an…

Astrophysics · Physics 2009-11-13 D. A. Howell , M. Sullivan , K. Perrett , T. J. Bronder , I. M. Hook , P. Astier , E. Aubourg , D. Balam , S. Basa , R. G. Carlberg , S. Fabbro , D. Fouchez , J. Guy , H. Lafoux , J. D. Neill , R. Pain , N. Palanque-Delabrouille , C. J. Pritchet , N. Regnault , J. Rich , R. Taillet , R. Knop , R. G. McMahon , S. Perlmutter , N. A. Walton

PS1-STRM: Neural network source classification and photometric redshift catalogue for PS1 $3\pi$ DR1

The Pan-STARRS1 (PS1) $3\pi$ survey is a comprehensive optical imaging survey of three quarters of the sky in the $grizy$ broad-band photometric filters. We present the methodology used in assembling the source classification and…

Astrophysics of Galaxies · Physics 2020-09-09 Róbert Beck , István Szapudi , Heather Flewelling , Conrad Holmberg , Eugene Magnier

The Dark Energy Camera All Data Everywhere cosmic shear project V: Constraints on cosmology and astrophysics from 270 million galaxies across 13,000 deg$^2$ of the sky

We present constraints on models of cosmology and astrophysics using cosmic shear data vectors from three datasets: the northern and southern Galactic cap of the Dark Energy Camera All Data Everywhere (DECADE) project, and the Dark Energy…

Cosmology and Nongalactic Astrophysics · Physics 2025-11-18 D. Anbajagane , C. Chang , A. Drlica-Wagner , C. Y. Tan , M. Adamow , R. A. Gruendl , L. F. Secco , Z. Zhang , M. R. Becker , P. S. Ferguson , N. Chicoine , K. Herron , A. Alarcon , R. Teixeira , D. Suson , A. J. Shajib , J. A. Frieman , A. N. Alsina , A. Amon , F. Andrade-Oliveira , J. Blazek , C. R. Bom , H. Camacho , J. A. Carballo-Bello , A. Carnero Rosell , R. Cawthon , W. Cerny , A. Choi , Y. Choi , S. Dodelson , C. Doux , K. Eckert , J. Elvin-Poole , J. Esteves , M. Gatti , G. Giannini , D. Gruen , W. G. Hartley , K. Herner , E. M. Huff , B. Jain , D. J. James , M. Jarvis , E. Krause , N. Kuropatkin , C. E. Martínez-Vázquez , P. Massana , S. Mau , J. McCullough , G. E. Medina , B. Mutlu-Pakdil , J. Myles , M. Navabi , N. E. D. Noël , A. B. Pace , S. Pandey , A. Porredon , J. Prat , M. Raveri , A. H. Riley , E. S. Rykoff , J. D. Sakowska , S. Samuroff , D. Sanchez-Cid , D. J. Sand , L. Santana-Silva , I. Sevilla-Noarbe , T. Shin , M. Soares-Santos , G. S. Stringfellow , C. To , E. J. Tollerud , A. Tong , M. A. Troxel , A. K. Vivas , M. Yamamoto , B. Yanny , B. Yin , A. Zenteno , Y. Zhang , J. Zuntz

The Dark Energy Spectroscopic Instrument: One-dimensional power spectrum from first Lyman-$\alpha$ forest samples with Fast Fourier Transform

We present the one-dimensional Lyman-$\alpha$ forest power spectrum measurement using the first data provided by the Dark Energy Spectroscopic Instrument (DESI). The data sample comprises $26,330$ quasar spectra, at redshift $z > 2.1$,…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-27 Corentin Ravoux , Marie Lynn Abdul-Karim , Eric Armengaud , Michael Walther , Naim Göksel Karaçaylı , Paul Martini , Julien Guy , Jessica Nicole Aguilar , Steven Ahlen , Stephen Bailey , Julian Bautista , Sergio Felipe Beltran , David Brooks , Laura Cabayol-Garcia , Solène Chabanier , Edmond Chaussidon , Jonás Chaves-Montero , Kyle Dawson , Rodrigo de la Cruz , Axel de la Macorra , Peter Doel , Kevin Fanning , Andreu Font-Ribera , Jaime Forero-Romero , Satya Gontcho A Gontcho , Alma Gonzalez-Morales , Calum Gordon , Hiram Herrera-Alcantar , Klaus Honscheid , Vid Iršič , Mustapha Ishak , Robert Kehoe , Theodore Kisner , Anthony Kremin , Martin Landriau , Laurent Le Guillou , Michael Levi , Zarija Lukić , Christophe Magneville , Aaron Meisner , Ramon Miquel , John Moustakas , Eva-Maria Mueller , Andrea Muñoz-Gutiérrez , Lucas Napolitano , Jundan Nie , Gustavo Niz , Nathalie Palanque-Delabrouille , Will Percival , Ignasi Pérez-Ràfols , Matthew Pieri , Claire Poppett , Francisco Prada , César Ramírez Pérez , Graziano Rossi , Eusebio Sanchez , David Schlegel , Michael Schubnell , Hee-Jong Seo , Francesco Sinigaglia , Ting Tan , Gregory Tarlé , Ben Wang , Benjamin Weaver , Christophe Yèche , Zhimin Zhou

Cosmological Results from the RAISIN Survey: Using Type Ia Supernovae in the Near Infrared as a Novel Path to Measure the Dark Energy Equation of State

Type Ia supernovae (SNe Ia) are more precise standardizable candles when measured in the near-infrared (NIR) than in the optical. With this motivation, from 2012-2017 we embarked on the RAISIN program with the Hubble Space Telescope (HST)…

Cosmology and Nongalactic Astrophysics · Physics 2022-07-22 D. O. Jones , K. S. Mandel , R. P. Kirshner , S. Thorp , P. M. Challis , A. Avelino , D. Brout , C. Burns , R. J. Foley , Y. -C. Pan , D. M. Scolnic , M. R. Siebert , R. Chornock , W. L. Freedman , A. Friedman , J. Frieman , L. Galbany , E. Hsiao , L. Kelsey , G. H. Marion , R. C. Nichol , P. E. Nugent , M. M. Phillips , A. Rest , A. G. Riess , M. Sako , M. Smith , P. Wiseman , W. M. Wood-Vasey

The Dark Energy Survey : Detection of weak lensing magnification of supernovae and constraints on dark matter haloes

The residuals of the distance moduli of Type Ia supernovae (SN Ia) relative to a Hubble diagram fit contain information about the inhomogeneity of the universe, due to weak lensing magnification by foreground matter. By correlating the…

Cosmology and Nongalactic Astrophysics · Physics 2024-06-10 P. Shah , T. M. Davis , D. Bacon , J. Frieman , L. Galbany , R. Kessler , O. Lahav , J. Lee , C. Lidman , R. C. Nichol , M. Sako , D. Scolnic , M. Sullivan , M. Vincenzi , P. Wiseman , S. Allam , T. M. C. Abbott , M. Aguena , O. Alves , F. Andrade-Oliveira , J. Annis , K. Bechtol , E. Bertin , S. Bocquet , D. Brooks , D. Brout , A. Carnero Rosell , J. Carretero , F. J. Castander , L. N. da Costa , M. E. S. Pereira , H. T. Diehl , P. Doel , C. Doux , S. Everett , I. Ferrero , B. Flaugher , D. Friedel , M. Gatti , D. Gruen , R. A. Gruendl , G. Gutierrez , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. Huterer , D. J. James , K. Kuehn , S. Lee , J. L. Marshall , J. Mena-Fernández , R. Miquel , J. Myles , R. L. C. Ogando , A. Palmese , A. Pieres , A. Roodman , E. Sanchez , I. Sevilla-Noarbe , M. Smith , M. Soares-Santos , E. Suchyta , M. E. C. Swanson , G. Tarle , N. Weaverdyck

First Cosmology Results using Type Ia Supernovae from the Dark Energy Survey: Constraints on Cosmological Parameters

We present the first cosmological parameter constraints using measurements of type Ia supernovae (SNe Ia) from the Dark Energy Survey Supernova Program (DES-SN). The analysis uses a subsample of 207 spectroscopically confirmed SNe Ia from…

Cosmology and Nongalactic Astrophysics · Physics 2019-05-13 T. M. C. Abbott , S. Allam , P. Andersen , C. Angus , J. Asorey , A. Avelino , S. Avila , B. A. Bassett , K. Bechtol , G. M. Bernstein , E. Bertin , D. Brooks , D. Brout , P. Brown , D. L. Burke , J. Calcino , A. Carnero Rosell , D. Carollo , M. Carrasco Kind , J. Carretero , R. Casas , F. J. Castander , R. Cawthon , P. Challis , M. Childress , A. Clocchiatti , C. E. Cunha , C. B. D'Andrea , L. N. da Costa , C. Davis , T. M. Davis , J. De Vicente , D. L. DePoy , S. Desai , H. T. Diehl , P. Doel , A. Drlica-Wagner , T. F. Eifler , A. E. Evrard , E. Fernandez , A. V. Filippenko , D. A. Finley , B. Flaugher , R. J. Foley , P. Fosalba , J. Frieman , L. Galbany , J. Garcia-Bellido , E. Gaztanaga , T. Giannantonio , K. Glazebrook , D. A. Goldstein , S. Gonzalez-Gaitan , D. Gruen , R. A. Gruendl , J. Gschwend , R. R. Gupta , G. Gutierrez , W. G. Hartley , S. R. Hinton , D. L. Hollowood , K. Honscheid , J. K. Hoormann , B. Hoyle , D. J. James , T. Jeltema , M. W. G. Johnson , M. D. Johnson , E. Kasai , S. Kent , R. Kessler , A. G. Kim , R. P. Kirshner , E. Kovacs , E. Krause , R. Kron , K. Kuehn , S. Kuhlmann , N. Kuropatkin , O. Lahav , J. Lasker , G. F. Lewis , T. S. Li , C. Lidman , M. Lima , H. Lin , E. Macaulay , M. A. G. Maia , K. S. Mandel , M. March , J. Marriner , J. L. Marshall , P. Martini , F. Menanteau , C. J. Miller , R. Miquel , V. Miranda , J. J. Mohr , E. Morganson , D. Muthukrishna , A. Möller , E. Neilsen , R. C. Nichol , B. Nord , P. Nugent , R. L. C. Ogando , A. Palmese , Y. -C. Pan , A. A. Plazas , M. Pursiainen , A. K. Romer , A. Roodman , E. Rozo , E. S. Rykoff , M. Sako , E. Sanchez , V. Scarpine , R. Schindler , M. Schubnell , D. Scolnic , S. Serrano , I. Sevilla-Noarbe , R. Sharp , M. Smith , M. Soares-Santos , F. Sobreira , N. E. Sommer , H. Spinka , E. Suchyta , M. Sullivan , E. Swann , G. Tarle , D. Thomas , R. C. Thomas , M. A. Troxel , B. E. Tucker , S. A. Uddin , A. R. Walker , W. Wester , P. Wiseman , R. C. Wolf , B. Yanny , B. Zhang , Y. Zhang

The Dark Energy Survey Data Management System: The Processing Framework

The Dark Energy Survey Data Management (DESDM) system will process and archive the data from the Dark Energy Survey (DES) over the five year period of operation. This paper focuses on a new adaptable processing framework developed to…

Instrumentation and Methods for Astrophysics · Physics 2009-05-06 Michelle Gower , Joseph J. Mohr , Darren Adams , Y. Dora Cai , Gregory E. Daues , Tony Darnell , Chow-Choong Ngeow , Shantanu Desai , Cristina Beldica , Mike Freemon , Huan Lin , Eric H. Neilsen , Douglas Tucker , Emmanuel Bertin , Luiz A. Nicolaci da Costa , Leandro Martelli , Ricardo L. C. Ogando , Michael Jarvis , Erin Sheldon

Target Selection and Sample Characterization for the DESI LOW-Z Secondary Target Program

We introduce the DESI LOW-Z Secondary Target Survey, which combines the wide-area capabilities of the Dark Energy Spectroscopic Instrument (DESI) with an efficient, low-redshift target selection method. Our selection consists of a set of…

Astrophysics of Galaxies · Physics 2023-06-13 Elise Darragh-Ford , John F. Wu , Yao-Yuan Mao , Risa H. Wechsler , Marla Geha , Jaime E. Forero-Romero , ChangHoon Hahn , Nitya Kallivayalil , John Moustakas , Ethan O. Nadler , Marta Nowotka , J. E. G. Peek , Erik J. Tollerud , Benjamin Weiner , J. Aguilar , S. Ahlen , D. Brooks , A. P. Cooper , A. de la Macorra , A. Dey , K. Fanning , A. Font-Ribera , S. Gontcho A Gontcho , K. Honscheid , T. Kisner , Anthony Kremin , M. Landriau , Michael E. Levi , P. Martini , Aaron M. Meisner , R. Miquel , Adam D. Myers , Jundan Nie , N. Palanque-Delabrouille , W. J. Percival , F. Prada , D. Schlegel , M. Schubnell , Gregory Tarlé , M. Vargas-Magaña , Zhimin Zhou , H. Zou

Unbiased Estimate of Dark Energy Density from Type Ia Supernova Data

Type Ia supernovae (SNe Ia) are currently the best probes of the dark energy in the universe. To constrain the nature of dark energy in a model-independent manner, we allow the density of dark energy, $\rho_X(z)$, to be an arbitrary…

Astrophysics · Physics 2009-11-07 Yun Wang , Geoffrey Lovelace

Photometric classification of type Ia supernovae in the SuperNova Legacy Survey with supervised learning

In the era of large astronomical surveys, photometric classification of supernovae (SNe) has become an important research field due to limited spectroscopic resources for candidate follow-up and classification. In this work, we present a…

Instrumentation and Methods for Astrophysics · Physics 2016-12-14 A. Möller , V. Ruhlmann-Kleider , C. Leloup , J. Neveu , N. Palanque-Delabrouille , J. Rich , R. Carlberg , C. Lidman , C. Pritchet

The Dark Energy Survey Six-Year Calibration Star Catalog

This Technical Note presents a catalog of calibrated reference stars that was generated by the Forward Calibration Method (FGCM) pipeline (arXiv:1706.01542) as part of the FGCM photometric calibration of the full Dark Energy Survey (DES)…

Instrumentation and Methods for Astrophysics · Physics 2023-05-04 E. S. Rykoff , D. L. Tucker , D. L. Burke , S. S. Allam , K. Bechtol , G. M. Bernstein , D. Brout , R. A. Gruendl , J. Lasker , J. A. Smith , W. C. Wester , B. Yanny , T. M. C. Abbott , M. Aguena , O. Alves , F. Andrade-Oliveira , J. Annis , D. Bacon , E. Bertin , D. Brooks , A. Carnero Rosell , J. Carretero , F. J. Castander , A. Choi , L. N. da Costa , M. E. S. Pereira , T. M. Davis , J. De Vicente , H. T. Diehl , P. Doel , A. Drlica-Wagner , S. Everett , I. Ferrero , J. Frieman , J. García-Bellido , G. Giannini , D. Gruen , G. Gutierrez , S. R. Hinton , D. L. Hollowood , D. J. James , K. Kuehn , O. Lahav , J. L. Marshall , J. Mena-Fernández , F. Menanteau , J. Myles , B. D. Nord , R. L. C. Ogando , A. Palmese , A. Pieres , A. A. Plazas Malagón , M. Raveri , M. Rodgríguez-Monroy , E. Sanchez , B. Santiago , M. Schubnell , I. Sevilla-Noarbe , M. Smith , M. Soares-Santos , E. Suchyta , M. E. C. Swanson , T. N. Varga , M. Vincenzi , A. R. Walker , N. Weaverdyck , P. Wiseman

The DESI Survey Validation: Results from Visual Inspection of Bright Galaxies, Luminous Red Galaxies, and Emission Line Galaxies

The Dark Energy Spectroscopic Instrument (DESI) Survey has obtained a set of spectroscopic measurements of galaxies to validate the final survey design and target selections. To assist in these tasks, we visually inspect (VI) DESI spectra…

Cosmology and Nongalactic Astrophysics · Physics 2024-10-10 Ting-Wen Lan , R. Tojeiro , E. Armengaud , J. Xavier Prochaska , T. M. Davis , David M. Alexander , A. Raichoor , Rongpu Zhou , Christophe Yeche , C. Balland , S. BenZvi , A. Berti , R. Canning , A. Carr , H. Chittenden , S. Cole , M. -C. Cousinou , K. Dawson , Biprateep Dey , K. Douglass , A. Edge , S. Escoffier , A. Glanville , S. Gontcho A Gontcho , J. Guy , C. Hahn , C. Howlett , Ho Seong Hwang , L. Jiang , A. Kovacs , M. Mezcua , S. Moore , S. Nadathur , M. Oh , D. Parkinson , A. Rocher , A. J. Ross , V. Ruhlmann-Kleider , C. G. Sabiu , K. Said , C. Saulder , D. Sierra-Porta , B. Weiner , J. Yu , P. Zarrouk , Y. Zhang , H. Zou , S. Ahlen , S. Bailey , D. Brooks , A. P. Cooper , A. de la Macorra , A. Dey , G. Dhungana , P. Doel , S. Eftekharzadeh , K. Fanning , A. Font-Ribera , L. Garrison , E. Gaztanaga , R. Kehoe , T. Kisner , A. Kremin , M. Landriau , L. Le Guillou , Michael E. Levi , C. Magneville , Aaron M. Meisner , R. Miquel , J. Moustakas , Adam D. Myers , Jeffrey A. Newman , J. D. Nie , N. Palanque-Delabrouille , W. J. Percival , C. Poppett , F. Prada , M. Schubnell , Gregory Tarle , B. A. Weaver , K. Zhang , Zhimin Zhou

The Carnegie Supernova Project: The Low-Redshift Survey

Supernovae are essential to understanding the chemical evolution of the Universe. Type Ia supernovae also provide the most powerful observational tool currently available for studying the expansion history of the Universe and the nature of…

Astrophysics · Physics 2016-08-16 Mario Hamuy , Gastón Folatelli , Nidia I. Morrell , Mark M. Phillips , Nicholas B. Suntzeff , S. E. Persson , Miguel Roth , Sergio Gonzalez , Wojtek Krzeminski , Carlos Contreras , Wendy L. Freedman , D. C. Murphy , Barry F. Madore , P. Wyatt , José Maza , Alexei V. Filippenko , Weidong Li , P. A. Pinto

The Carnegie Supernova Project I: photometry data release of low-redshift stripped-envelope supernovae

The first phase of the Carnegie Supernova Project (CSP-I) was a dedicated supernova follow-up program based at the Las Campanas Observatory that collected science data of young, low-redshift supernovae between 2004 and 2009. Presented in…

High Energy Astrophysical Phenomena · Physics 2018-02-07 M. D. Stritzinger , J. P. Anderson , C. Contreras , E. Heinrich-Josties , N. Morrell , M. M. Phillips , J. Anais , L. Boldt , L. Busta , C. R. Burns , A. Campillay , C. Corco , S. Castellon , G. Folatelli , C. González , S. Holmbo , E. Y. Hsiao , W. Krzeminski , F. Salgado , J. Serón , S. Torres-Robledo , W. L. Freedman , M. Hamuy , K. Krisciunas , B. F. Madore , S. E. Persson , M. Roth , N. B. Suntzeff , F. Taddia , W. Li , A. V. Filippenko

Light Curves and Spectra from a Unimodal Core-Collapse SuperNova

To assess the effectiveness of optical emission as a probe of spatial asymmetry in core-collapse supernovae (CCSNe), we apply the radiative transfer software, \supernu, to a unimodal CCSN model. The \snsph\ radiation-hydrodynamics software…

High Energy Astrophysical Phenomena · Physics 2017-08-30 Ryan T. Wollaeger , Aimee L. Hungerford , Chris L. Fryer , Allan B. Wollaber , Daniel R. van Rossum , Wesley Even

OzDES multifibre spectroscopy for the Dark Energy Survey: Three year results and first data release

We present results for the first three years of OzDES, a six-year programme to obtain redshifts for objects in the Dark Energy Survey (DES) supernova fields using the 2dF fibre positioner and AAOmega spectrograph on the Anglo-Australian…

Cosmology and Nongalactic Astrophysics · Physics 2017-08-16 M. J. Childress , C. Lidman , T. M. Davis , B. E. Tucker , J. Asorey , F. Yuan , T. M. C. Abbott , F. B. Abdalla , S. Allam , J. Annis , M. Banerji , A. Benoit-Levy , S. R. Bernard , E. Bertin , D. Brooks , E. Buckley-Geer , D. L. Burke , A. Carnero Rosell , D. Carollo , M. Carrasco Kind , J. Carretero , F. J. Castander , C. E. Cunha , L. N. da Costa , C. B. D'Andrea , P. Doel , T. F. Eifler , A. E. Evrard , B. Flaugher , R. J. Foley , P. Fosalba , J. Frieman , J. Garcia-Bellido , K. Glazebrook , D. A. Goldstein , D. Gruen , R. A. Gruendl , J. Gschwend , R. R. Gupta , G. Gutierrez , S. R. Hinton , J. K. Hoormann , D. J. James , R. Kessler , A. G. Kim , A. L. King , E. Kovacs , K. Kuehn , S. Kuhlmann , N. Kuropatkin , D. J. Lagattuta , G. F. Lewis , T. S. Li , M. Lima , H. Lin , E. Macaulay , M. A. G. Maia , J. Marriner , M. March , J. L. Marshall , P. Martini , R. G. McMahon , F. Menanteau , R. Miquel , A. Moller , E. Morganson , J. Mould , D. Mudd , D. Muthukrishna , R. C. Nichol , B. Nord , R. L. C. Ogando , F. Ostrovski , D. Parkinson , A. A. Plazas , S. L. Reed , K. Reil , A. K. Romer , E. S. Rykoff , M. Sako , E. Sanchez , V. Scarpine , R. Schindler , M. Schubnell , D. Scolnic , I. Sevilla-Noarbe , N. Seymour , R. Sharp , M. Smith , M. Soares-Santos , F. Sobreira , N. E. Sommer , H. Spinka , E. Suchyta , M. Sullivan , M. E. C. Swanson , G. Tarle , S. A. Uddin , A. R. Walker , W. Wester , B. R. Zhang