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Constraining dust and color variations of high-z SNe using NICMOS on Hubble Space Telescope

We present data from the Supernova Cosmology Project for five high redshift Type Ia supernovae (SNe Ia) that were obtained using the NICMOS infrared camera on the Hubble Space Telescope. We add two SNe from this sample to a rest-frame…

Cosmology and Nongalactic Astrophysics · Physics 2009-08-30 S. Nobili , V. Fadeyev , G. Aldering , R. Amanullah , K. Barbary , M. S. Burns , K. S. Dawson , S. E. Deustua , L. Faccioli , A. S. Fruchter , G. Goldhaber , A. Goobar , I. Hook , D. A. Howell , A. G. Kim , R. A. Knop , C. Lidman , J. Meyers , P. E. Nugent , R. Pain , N. Panagia , S. Perlmutter , D. Rubin , A. L. Spadafora , M. Strovink , N. Suzuki , H. Swift

ZTF SN Ia DR2: Overview

We present the first homogeneous release of several thousand Type Ia supernovae (SNe Ia), all having spectroscopic classification, and spectroscopic redshifts for half the sample. This release, named the "DR2", contains 3628 nearby (z <…

Cosmology and Nongalactic Astrophysics · Physics 2024-12-04 Mickael Rigault , Mathew Smith , Ariel Goobar , Kate Maguire , Georgios Dimitriadis , Umut Burgaz , Suhail Dhawan , Jesper Sollerman , Nicolas Regnault , Marek Kowalski , Melissa Amenouche , Marie Aubert , Chloé Barjou-Delayre , Julian Bautista , Josh S. Bloom , Bastien Carreres , Tracy X. Chen , Yannick Copin , Maxime Deckers , Dominique Fouchez , Christoffer Fremling , Lluis Galbany , Madeleine Ginolin , Matthew Graham , Mancy M. Kasliwal , W. D'Arcy Kenworthy , Young-Lo Kim , Dylan Kuhn , Frank F. Masci , Tomas Müller-Bravo , Adam Miller , Joel Johansson , Jakob Nordin , Peter Nugent , Igor Andreoni , Eric Bellm , Marc Betoule , Mahmoud Osman , Dan Perley , Brodie Popovic , Philippe Rosnet , Damiano Rosselli , Florian Ruppin , Robert Senzel , Ben Rusholme , Tassilo Schweyer , Jacco H. Terwel , Alice Townsend , Andy Tzanidakis , Avery Wold , Josiah Purdum , Yu-Jing Qin , Benjamin Racine , Simeon Reusch , Reed Riddle , Lin Yan

Near Infrared Spectra of Type Ia Supernovae

We report near infrared (NIR) spectroscopic observations of twelve ``Branch-normal'' Type Ia supernovae (SNe Ia) which cover the wavelength region from 0.8-2.5 microns. Our sample more than doubles the number of SNe Ia with published NIR…

Astrophysics · Physics 2009-11-10 G. H. Marion , P. Höflich , W. D. Vacca , J. C. Wheeler

Confirmation of Hostless Type Ia Supernovae Using Hubble Space Telescope Imaging

We present deep Hubble Space Telescope imaging at the locations of four, potentially hostless, long-faded Type Ia supernovae (SNe Ia) in low-redshift, rich galaxy clusters that were identified in the Multi-Epoch Nearby Cluster Survey.…

Astrophysics of Galaxies · Physics 2015-07-15 Melissa L. Graham , David J. Sand , Dennis Zaritsky , Chris J. Pritchet

First-year Sloan Digital Sky Survey-II (SDSS-II) Supernova Results: Hubble Diagram and Cosmological Parameters

We present measurements of the Hubble diagram for 103 Type Ia supernovae (SNe) with redshifts 0.04 < z < 0.42, discovered during the first season (Fall 2005) of the Sloan Digital Sky Survey-II (SDSS-II) Supernova Survey. These data fill in…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Richard Kessler , Andrew Becker , David Cinabro , Jake Vanderplas , Joshua A. Frieman , John Marriner , Tamara M Davis , Benjamin Dilday , Jon Holtzman , Saurabh Jha , Hubert Lampeitl , Masao Sako , Mathew Smith , Chen Zheng , Robert C. Nichol , Bruce Bassett , Ralf Bender , Darren L. Depoy , Mamoru Doi , Ed Elson , Alex V. Filippenko , Ryan J. Foley , Peter M. Garnavich , Ulrich Hopp , Yutaka Ihara , William Ketzeback , W. Kollatschny , Kohki Konishi , Jennifer L. Marshall , Russet J. McMillan , Gajus Miknaitis , Tomoki Morokuma , Edvard M"ortsell , Kaike Pan , Jose Luis Prieto , Michael W. Richmond , Adam G. Riess , Roger Romani , Donald P. Schneider , Jesper Sollerman , Naohiro Takanashi , Kouichi Tokita , Kurt van der Heyden , J. C. Wheeler , Naoki Yasuda , Donald York

Carnegie Supernova Project-II: Near-infrared spectral diversity and template of Type Ia Supernovae

We present the largest and most homogeneous collection of near-infrared (NIR) spectra of Type Ia supernovae (SNe Ia): 339 spectra of 98 individual SNe obtained as part of the Carnegie Supernova Project-II. These spectra, obtained with the…

High Energy Astrophysical Phenomena · Physics 2023-05-10 Jing Lu , Eric Y. Hsiao , Mark M. Phillips , Christopher R. Burns , Chris Ashall , Nidia Morrell , Lawrence Ng , Sahana Kumar , Melissa Shahbandeh , Peter Hoeflich , E. Baron , Syed Uddin , Maximilian D. Stritzinger , Nicholas B. Suntzeff , Charles Baltay , Scott Davis , Tiara R. Diamond , Gaston Folatelli , Francisco Förster , Jonathan Gagné , Lluís Galbany , Christa Gall , Santiago González-Gaitán , Simon Holmbo , Robert P. Kirshner , Kevin Krisciunas , G. H. Marion , Saul Perlmutter , Priscila J. Pessi , Anthony L. Piro , David Rabinowitz , Stuart D. Ryder , David J. Sand

ZTF SN Ia DR2 follow-up: Characterization of subluminous Type Ia supernovae in the ZTF DR2 full sample

The Zwicky Transient Facility Data Release 2 (ZTF DR2) includes a total of 3,628 Type Ia supernovae (SNe~Ia), providing the largest and most complete sample of spectroscopically confirmed SNe~Ia at low redshift to date. In this paper, we…

High Energy Astrophysical Phenomena · Physics 2025-12-25 Alaa Alburai , Lluís Galbany , Umut Burgaz , Georgios Dimitriadis , Joel Johansson , Mat Smith , Ramon Sanfeliu , Sandra Guerra , Tomás Müller-Bravo , Ariel Goobar , Suhail Dhawan , Young-Lo Kim , Jakob Nordin , Alice Townsend , Jesper Sollerman , Madeleine Ginolin , Mickael Rigault , Jacco H. Terwel , Roger Smith , Avery Wold , Tracy X. Chen , Theophile Jegou du Laz

The Extended HST Supernova Survey: The Rate of SNe Ia at z>1.4 Remains Low

We use the HST ACS imaging of the two GOODS fields during Cycles 11, 12, and 13 to derive the Type Ia supernova rate in four redshift intervals in the range 0.2<z<1.8. Compared to our previous results based on Cycle 11 observations only, we…

Astrophysics · Physics 2009-11-13 Tomas Dahlen , Louis-Gregory Strolger , Adam G. Riess

Type Ia Supernova Distances at z > 1.5 from the Hubble Space Telescope Multi-Cycle Treasury Programs: The Early Expansion Rate

We present an analysis of 15 Type Ia supernovae (SNe Ia) at redshift z > 1 (9 at 1.5 < z < 2.3) recently discovered in the CANDELS and CLASH Multi-Cycle Treasury programs using WFC3 on the Hubble Space Telescope. We combine these SNe Ia…

Cosmology and Nongalactic Astrophysics · Physics 2018-02-14 Adam G. Riess , Steven A. Rodney , Daniel M. Scolnic , Daniel L. Shafer , Louis-Gregory Strolger , Henry C. Ferguson , Marc Postman , Or Graur , Dan Maoz , Saurabh W. Jha , Bahram Mobasher , Stefano Casertano , Brian Hayden , Alberto Molino , Jens Hjorth , Peter M. Garnavich , David O. Jones , Robert P. Kirshner , Anton M. Koekemoer , Norman A. Grogin , Gabriel Brammer , Shoubaneh Hemmati , Mark Dickinson , Peter M. Challis , Schuyler Wolff , Kelsey I. Clubb , Alexei V. Filippenko , Hooshang Nayyeri , U Vivian , David C. Koo , Sandra M. Faber , Dale Kocevski , Larry Bradley , Dan Coe

Spectroscopic Studies of Type Ia Supernovae Using LSTM Neural Networks

We present a data-driven method based on long short-term memory (LSTM) neural networks to analyze spectral time series of Type Ia supernovae (SNe Ia). The dataset includes 3091 spectra from 361 individual SNe Ia. The method allows for…

High Energy Astrophysical Phenomena · Physics 2022-05-09 Lei Hu , Xingzhuo Chen , Lifan Wang

LensWatch. II. Improved Photometry and Time-delay Constraints on the Strongly Lensed Type Ia Supernova 2022qmx ("SN Zwicky") with HST Template Observations

Strongly lensed supernovae (SNe) are a rare class of transient that can offer tight cosmological constraints that are complementary to methods from other astronomical events. We present a follow-up study of one recently-discovered strongly…

High Energy Astrophysical Phenomena · Physics 2025-03-12 Conor Larison , Justin D. R. Pierel , Max J. B. Newman , Saurabh W. Jha , Daniel Gilman , Erin E. Hayes , Aadya Agrawal , Nikki Arendse , Simon Birrer , Mateusz Bronikowski , John M. Della Costa , David A. Coulter , Frédéric Courbin , Sukanya Chakrabarti , Jose M. Diego , Kyle A. Dalrymple , Suhail Dhawan , Ariel Goobar , Christa Gall , Jens Hjorth , Xiaosheng Huang , Shude Mao , Rui Marques-Chaves , Paolo A. Mazzali , Anupreeta More , Leonidas A. Moustakas , Ismael Pérez-Fournon , Tanja Petrushevska , Frédérick Poidevin , Armin Rest , Anowar J. Shajib , Raphael Shirley , William Sheu , Louis-Gregory Strolger , Sherry H. Suyu , Tommaso Treu , Yossef Zenati

CfA4: Light Curves for 94 Type Ia Supernovae

We present multi-band optical photometry of 94 spectroscopically-confirmed Type Ia supernovae (SN Ia) in the redshift range 0.0055 to 0.073, obtained between 2006 and 2011. There are a total of 5522 light curve points. We show that our…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Malcolm Hicken , Peter Challis , Robert P. Kirshner , Armin Rest , Claire E. Cramer , W. Michael Wood-Vasey , Gaspar Bakos , Perry Berlind , Warren R. Brown , Nelson Caldwell , Mike Calkins , Thayne Currie , Kathy de Kleer , Gil Esquerdo , Mark Everett , Emilio Falco , Jose Fernandez , Andrew S. Friedman , Ted Groner , Joel Hartman , Matthew J. Holman , Robert Hutchins , Sonia Keys , David Kipping , Dave Latham , George H. Marion , Gautham Narayan , Michael Pahre , Andras Pal , Wayne Peters , Gopakumar Perumpilly , Ben Ripman , Brigitta Sipocz , Andrew Szentgyorgyi , Sumin Tang , Manuel A. P. Torres , Amali Vaz , Scott Wolk , Andreas Zezas

The Carnegie Supernova Project: Analysis of the First Sample of Low-Redshift Type-Ia Supernovae

We present the analysis of the first set of low-redshift Type Ia supernovae (SNe Ia) by the Carnegie Supernova Project. Well-sampled, high-precision optical (ugriBV) and near-infrared (NIR; YJHKs) light curves obtained in a well-understood…

Cosmology and Nongalactic Astrophysics · Physics 2011-04-07 Gaston Folatelli , M. M. Phillips , Christopher R. Burns , Carlos Contreras , Mario Hamuy , W. L. Freedman , S. E. Persson , Maximilian Stritzinger , Nicholas B. Suntzeff , Kevin Krisciunas , Luis Boldt , Sergio Gonzalez , Wojtek Krzeminski , Nidia Morrell , Miguel Roth , Francisco Salgado , Barry F. Madore , David Murphy , Pamela Wyatt , Weidong Li , Alexei V. Filippenko , Nicole Miller

Cosmological Prediction of the CSST Ultra Deep Field Type Ia Supernova Photometric Survey

Type Ia supernova (SN Ia) as a standard candle is an ideal tool to measure cosmic distance and expansion history of the Universe. Here we investigate the SN Ia photometric measurement in the China Space Station Telescope Ultra Deep Field…

Cosmology and Nongalactic Astrophysics · Physics 2024-04-24 Minglin Wang , Yan Gong , Furen Deng , Haitao Miao , Xuelei Chen , Hu Zhan

First Cosmology Results Using Type Ia Supernovae From the Dark Energy Survey: Analysis, Systematic Uncertainties, and Validation

We present the analysis underpinning the measurement of cosmological parameters from 207 spectroscopically classified type Ia supernovae (SNe Ia) from the first three years of the Dark Energy Survey Supernova Program (DES-SN), spanning a…

Cosmology and Nongalactic Astrophysics · Physics 2019-06-04 D. Brout , D. Scolnic , R. Kessler , C. B. D'Andrea , T. M. Davis , R. R. Gupta , S. R. Hinton , A. G. Kim , J. Lasker , C. Lidman , E. Macaulay , A. Möller , R. C. Nichol , M. Sako , M. Smith , M. Sullivan , B. Zhang , P. Andersen , J. Asorey , A. Avelino , B. A. Bassett , P. Brown , J. Calcino , D. Carollo , P. Challis , M. Childress , A. Clocchiatti , A. V. Filippenko , R. J. Foley , L. Galbany , K. Glazebrook , J. K. Hoormann , E. Kasai , R. P. Kirshner , K. Kuehn , S. Kuhlmann , G. F. Lewis , K. S. Mandel , M. March , V. Miranda , E. Morganson , D. Muthukrishna , P. Nugent , A. Palmese , Y. -C. Pan , R. Sharp , N. E. Sommer , E. Swann , R. C. Thomas , B. E. Tucker , S. A. Uddin , W. Wester , T. M. C. Abbott , S. Allam , J. Annis , S. Avila , K. Bechtol , G. M. Bernstein , E. Bertin , D. Brooks , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , C. E. Cunha , L. N. da Costa , C. Davis , J. De Vicente , D. L. DePoy , S. Desai , H. T. Diehl , P. Doel , A. Drlica-Wagner , T. F. Eifler , J. Estrada , E. Fernandez , B. Flaugher , P. Fosalba , J. Frieman , J. García-Bellido , D. Gruen , R. A. Gruendl , G. Gutierrez , W. G. Hartley , D. L. Hollowood , K. Honscheid , B. Hoyle , D. J. James , M. Jarvis , T. Jeltema , E. Krause , O. Lahav , T. S. Li , M. Lima , M. A. G. Maia , J. Marriner , J. L. Marshall , P. Martini , F. Menanteau , C. J. Miller , R. Miquel , R. L. C. Ogando , A. A. Plazas , A. K. Romer , A. Roodman , E. S. Rykoff , E. Sanchez , B. Santiago , V. Scarpine , M. Schubnell , S. Serrano , I. Sevilla-Noarbe , R. C. Smith , M. Soares-Santos , F. Sobreira , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , M. A. Troxel , D. L. Tucker , V. Vikram , A. R. Walker , Y. Zhang

SN 2023adsy: A normal type Ia Supernova at z=2.9

Supernovae (SNe) discovered in high-redshift (z > 2) galaxies by the James Webb Space Telescope (JWST) provide a unique opportunity to extend the Hubble-diagram beyond z~1.5 and constrain the cosmic Star Formation Rate in the early…

High Energy Astrophysical Phenomena · Physics 2025-09-10 Jozsef Vinko , Eniko Regos

Constraining Cosmic Evolution of Type Ia Supernovae

We present the first large-scale effort of creating composite spectra of high-redshift type Ia supernovae (SNe Ia) and comparing them to low-redshift counterparts. Through the ESSENCE project, we have obtained 107 spectra of 88…

Astrophysics · Physics 2014-11-18 Ryan J. Foley , A. V. Filippenko , C. Aguilera , A. C. Becker , S. Blondin , P. Challis , A. Clocchiatti , R. Covarrubias , T. M. Davis , P. M. Garnavich , S. Jha , R. P. Kirshner , K. Krisciunas , B. Leibundgut , W. Li , T. Matheson , A. Miceli , G. Miknaitis , G. Pignata , A. Rest , A. G. Riess , B. P. Schmidt , R. C. Smith , J. Sollerman , J. Spyromilio , C. W. Stubbs , J. L. Tonry , N. B. Suntzeff , W. M. Wood-Vasey , A. Zenteno

Selecting superluminous supernovae in faint galaxies from the first year of the Pan-STARRS1 Medium Deep Survey

The Pan-STARRS1 (PS1) survey has obtained imaging in 5 bands (grizy_P1) over 10 Medium Deep Survey (MDS) fields covering a total of 70 square degrees. This paper describes the search for apparently hostless supernovae (SNe) within the first…

High Energy Astrophysical Phenomena · Physics 2015-06-18 M. McCrum , S. J. Smartt , A. Rest , K. Smith , R. Kotak , S. A. Rodney , D. R. Young , R. Chornock , E. Berger , R. J. Foley , M. Fraser , D. Wright , D. Scolnic , J. L. Tonry , Y. Urata , K. Huang , A. Pastorello , M. T. Botticella , S. Valenti , S. Mattila , E. Kankare , D. J. Farrow , M. E. Huber , C. W. Stubbs , R. P. Kirshner , F. Bresolin , W. S. Burgett , K. C. Chambers , P. W. Draper , H. Flewelling , R. Jedicke , N. Kaiser , E. A. Magnier , N. Metcalfe , J. S. Morgan , P. A. Price , W. Sweeney , R. J. Wainscoat , C. Waters

The Supernova Legacy Survey 3-year sample: Type Ia Supernovae photometric distances and cosmological constraints

We present photometric properties and distance measurements of 252 high redshift Type Ia supernovae (0.15 < z < 1.1) discovered during the first three years of the Supernova Legacy Survey (SNLS). These events were detected and their…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 J. Guy , M. Sullivan , A. Conley , N. Regnault , P. Astier , C. Balland , S. Basa , R. G. Carlberg , D. Fouchez , D. Hardin , I. M. Hook , D. A. Howell , R. Pain , N. Palanque-Delabrouille , K. M. Perrett , C. J. Pritchet , J. Rich , V. Ruhlmann-Kleider , D. Balam , S. Baumont , R. S. Ellis , S. Fabbro , H. K. Fakhouri , N. Fourmanoit , S. Gonzalez-Gaitan , M. L. Graham , E. Hsiao , T. Kronborg , C. Lidman , A. M. Mourao , S. Perlmutter , P. Ripoche , N. Suzuki , E. S. Walker

Supernova Rates and Luminosity Functions from ASAS-SN III: Over a Decade of Type Ia SNe and Their Subtypes

We present volumetric rates and luminosity functions (LFs) of Type Ia supernovae (SNe Ia) from the All-Sky Automated Survey for Supernovae (ASAS-SN), covering the 11-year period from 2014 to 2024. By combining the 2014--2017 $V$-band sample…

High Energy Astrophysical Phenomena · Physics 2026-02-03 Dhvanil D. Desai , Benjamin J. Shappee , Christopher S. Kochanek , Krzysztof Z. Stanek , Chris Ashall , John F. Beacom , Christopher R. Burns , Aaron Do , Subo Dong , Willem B. Hoogendam , Jing Lu , Thallis Pessi , Jose L. Prieto , Todd A. Thompson