Related papers: Testing for Intrinsic Type Ia Supernova Luminosity…

Quantitative comparison between Type Ia supernova spectra at low and high redshifts: A case study

We develop a method to measure the strength of the absorption features in Type Ia supernova (SN Ia) spectra and use it to make a quantitative comparison between the spectra of Type Ia supernovae at low and high redshifts. In this case…

Astrophysics · Physics 2009-11-13 G. Garavini , G. Folatelli , S. Nobili , G. Aldering , R. Amanullah , P. Antilogus , P. Astier , G. Blanc , J. Bronder , M. S. Burns , A. Conley , S. E. Deustua , M. Doi , S. Fabbro , V. Fadeyev , R. Gibbons , G. Goldhaber , A. Goobar , D. E. Groom , I. Hook , D. A. Howell , N. Kashikawa , A. G. Kim , M. Kowalski , N. Kuznetsova , B. C. Lee , C. Lidman , J. Mendez , T. Morokuma , K. Motohara , P. E. Nugent , R. Pain , S. Perlmutter , R. Quimby , J. Raux , N. Regnault , P. Ruiz-Lapuente , G. Sainton , K. Schahmaneche , E. Smith , A. L. Spadafora , V. Stanishev , R. C. Thomas , N. A. Walton , L. Wang , W. M. Wood-Vasey , N. Yasuda. The Supernova Cosmology Project

Measuring the Ejecta Velocities of Type Ia Supernovae from the Pan-STARRS1 Medium Deep Survey

There is growing evidence that Type Ia supernovae (SNe Ia) may originate from multiple explosion channels. Previous studies have indicated that the ejecta velocity of SNe Ia is one powerful tool to discriminate between different channels.…

High Energy Astrophysical Phenomena · Physics 2024-07-01 Y. -C. Pan , Y. -S. Jheng , D. O. Jones , I. -Y. Lee , R. J. Foley , R. Chornock , D. M. Scolnic , E. Berger , P. M. Challis , M. Drout , M. E. Huber , R. P. Kirshner , R. Kotak , R. Lunnan , G. Narayan , A. Rest , S. Rodney , S. Smartt

Diversity of supernovae Ia determined using equivalent widths of Si II 4000

Spectroscopic and photometric properties of low and high-z supernovae Ia (SNe Ia) have been analyzed in order to achieve a better understanding of their diversity and to identify possible SN Ia sub-types. We use wavelet transformed spectra…

Astrophysics · Physics 2009-01-05 V. Arsenijevic , S. Fabbro , A. M. Mourao , A. J. Rica da Silva

A Natural $\gtrsim 100\times$ Telescope: Discovery of the Strongly Lensed Type II SN 2025mkn at $z=1.37$

We present the discovery of SN 2025mkn, a gravitationally lensed Type II supernova. First detected as a blue transient in ZTF, 0.83$^{\prime\prime}$ from a $z=0.42$ elliptical galaxy, follow-up SNIFS/UH2.2m and LRIS/Keck spectra revealed…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-10 Cameron Lemon , Ariel Goobar , Joel Johansson , Edvard Mörtsell , Steve Schulze , Igor Andreoni , Aleksandra Bochenek , Seán J. Brennan , Malte Busmann , Michael Coughlin , Kaustav K. Das , Suhail Dhawan , Christoffer Fremling , Anjasha Gangopadhyay , Daniel Gruen , Xander J. Hall , Anna Y. Q. Ho , Mansi M. Kasliwal , Daniel A. Perley , Mickael Rigault , Genevieve Schroeder , Mathew Smith , Jesper Sollerman , Jean J. Somalwar , Robert Stein , Stephen Thorp , Alice Townsend , Jacob L. Wise , Lin Yan , Nikki Arendse , Eric C. Bellm , Tracy X. Chen , Andrew Drake , Frank J. Masci , Josiah Purdum , Roger Smith , Jason T. Hinkle , T. Emil Rivera-Thorsen , Benjamin J. Shappee , Michael A. Tucker , Jessica Aguilar , Steven Ahlen , Greg Aldering , Segev Benzvi , Davide Bianchi , David Brooks , Todd Claybaugh , Axel de la Macorra , John Della Costa , Arjun Dey , Peter Doel , Brenna Flaugher , Andreu Font-Ribera , Jaime E. Forero-Romero , Enrique Gaztañaga , Satya Gontcho A. Gontcho , Gaston Gutierrez , Dragan Huterer , Mustapha Ishak , Jorge Jimenez , Dick Joyce , Stephanie Juneau , Robert Kehoe , Alex G. Kim , David Kirkby , Theodore Kisner , Anthony Kremin , Ofer Lahav , Martin Landriau , Laurent Le Guillou , Michael E. Levi , Marc Manera , Aaron Meisner , Ramon Miquel , John Moustakas , Seshadri Nadathur , Brendan O'Connor , Nathalie Palanque-Delabrouille , Antonella Palmese , Will J. Percival , Ignasi Pérez-Ràfols , Claire Poppett , Francisco Prada , Graziano Rossi , Eusebio Sanchez , David Schlegel , Michael Schubnell , Arman Shafieloo , Joseph Silber , David Sprayberry , Gregory Tarlé , Benjamin A. Weaver , Hu Zou

Very Early Ultraviolet and Optical Observations of the Type Ia Supernova 2009ig

Supernova (SN) 2009ig was discovered 17 hours after explosion by the Lick Observatory Supernova Search, promptly classified as a normal Type Ia SN (SN Ia), peaked at V = 13.5 mag, and was equatorial, making it one of the foremost supernovae…

Solar and Stellar Astrophysics · Physics 2015-05-30 Ryan J. Foley , P. J. Challis , A. V. Filippenko , M. Ganeshalingam , W. Landsman , W. Li , G. H. Marion , J. M. Silverman , R. L. Beaton , V. N. Bennert , S. B. Cenko , M. Childress , P. Guhathakurta , L. Jiang , J. S. Kalirai , R. P. Kirshner , A. Stockton , E. Tollerud , J. Vinko , J. C. Wheeler , J. -H. Woo

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

No plateau observed in late-time near-infrared observations of the underluminous Type Ia supernova 2021qvv

Near-infrared (NIR) observations of normal Type Ia supernovae (SNe Ia) obtained between 150 to 500 d past maximum light reveal the existence of an extended plateau. Here, we present observations of the underluminous, 1991bg-like SN 2021qvv.…

High Energy Astrophysical Phenomena · Physics 2023-09-27 O. Graur , E. Padilla Gonzalez , J. Burke , M. Deckers , S. W. Jha , L. Galbany , E. Karamenhmetoglu , M. D. Stritzinger , K. Maguire , D. A. Howell , R. Fisher , A. G. Fullard , R. Handberg , D. Hiramatsu , G. Hosseinzadeh , W. E. Kerzendorf , C. McCully , M. Newsome , C. Pellegrino , A. Rest , A. G. Riess , I. R. Seitenzahl , M. M. Shara , K. J. Shen , G. Terreran , D. R. Zurek

A Faint Progenitor System for the Faint Supernova 2024vjm

Type Ia Supernovae (SNe Ia) are well known for their role as standardizable cosmological candles. Their uniformity is credited to their single origin as thermonuclear explosions of White dwarf (WD) stars. Nevertheless, some SNe Ia break…

High Energy Astrophysical Phenomena · Physics 2026-02-12 Erez A. Zimmerman , Avishay Gal-Yam , Paul J. Groot , Eran O. Ofek , Jan van Roestel , Andrea Pastorello , Stefano Valenti , Aravind P. Ravi , Ping Chen , Steve Schulze , Nadejda Blagorodnova , Maxime Wavasseur , Marco A. Gomez-Munoz , Hugo Tranin , Simon de Wet , Giorgos Leloudas , Paul M. Vreeswijk , Lindsey A. Kwok , Michaela Schwab , Saurabh W. Jha , Kate Maguire , David J. Sand , Eric Stringer , Thomas Kupfer , Tamar Faran , Joseph P. Anderson , Jennifer Andrews , Moira Andrews , Avshalom Badash , Steven Bloemen , K. Azalee Bostroem , Ting-Wan Chen , Massimo Della Valle , Georgios Dimitriadis , Yize Dong , Joseph R. Farah , James H. Gillanders , Benjamin Godson , Mariusz Gromadzki , Daichi Hiramatsu , Emily Hoang , D. Andrew Howell , Daryl Janzen , Hanindyo Kuncarayakti , Jiaxuan Li , Joseph D. Lyman , Keiichi Maeda , Mark R. Magee , Curtis McCully , Darshana Mehta , Andrew Milligan , Shane Moran , Yuan Qi Ni , David O'Neill , Jeniveve Pearson , Danielle L. A. Pieterse , Giuliano Pignata , Andrea Reguitti , Daniel E. Reichart , Nicolas Meza Retamal , Rita P. Santos , Simone Scaringi , Manisha Shrestha , Shubham Srivastav , Fiorenzo Stoppa , Bhagya Subrayan , Giorgio Valerin , Xiaofeng Wang , Kathryn Wynn , Ofer Yaron , Weicheng Zang

The Dark Energy Survey: Cosmology Results With ~1500 New High-redshift Type Ia Supernovae Using The Full 5-year Dataset

We present cosmological constraints from the sample of Type Ia supernovae (SN Ia) discovered during the full five years of the Dark Energy Survey (DES) Supernova Program. In contrast to most previous cosmological samples, in which SN are…

Cosmology and Nongalactic Astrophysics · Physics 2025-07-22 DES Collaboration , T. M. C. Abbott , M. Acevedo , M. Aguena , A. Alarcon , S. Allam , O. Alves , A. Amon , F. Andrade-Oliveira , J. Annis , P. Armstrong , J. Asorey , S. Avila , D. Bacon , B. A. Bassett , K. Bechtol , P. H. Bernardinelli , G. M. Bernstein , E. Bertin , J. Blazek , S. Bocquet , D. Brooks , D. Brout , E. Buckley-Geer , D. L. Burke , H. Camacho , R. Camilleri , A. Campos , A. Carnero Rosell , D. Carollo , A. Carr , J. Carretero , F. J. Castander , R. Cawthon , C. Chang , R. Chen , A. Choi , C. Conselice , M. Costanzi , L. N. da Costa , M. Crocce , T. M. Davis , D. L. DePoy , S. Desai , H. T. Diehl , M. Dixon , S. Dodelson , P. Doel , C. Doux , A. Drlica-Wagner , J. Elvin-Poole , S. Everett , I. Ferrero , A. Ferté , B. Flaugher , R. J. Foley , P. Fosalba , D. Friedel , J. Frieman , C. Frohmaier , L. Galbany , J. García-Bellido , M. Gatti , E. Gaztanaga , G. Giannini , K. Glazebrook , O. Graur , D. Gruen , R. A. Gruendl , G. Gutierrez , W. G. Hartley , K. Herner , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. Huterer , B. Jain , D. J. James , N. Jeffrey , E. Kasai , L. Kelsey , S. Kent , R. Kessler , A. G. Kim , R. P. Kirshner , E. Kovacs , K. Kuehn , O. Lahav , J. Lee , S. Lee , G. F. Lewis , T. S. Li , C. Lidman , H. Lin , U. Malik , J. L. Marshall , P. Martini , J. Mena-Fernández , F. Menanteau , R. Miquel , J. J. Mohr , J. Mould , J. Muir , A. Möller , E. Neilsen , R. C. Nichol , P. Nugent , R. L. C. Ogando , A. Palmese , Y. -C. Pan , M. Paterno , W. J. Percival , M. E. S. Pereira , A. Pieres , A. A. Plazas Malagón , B. Popovic , A. Porredon , J. Prat , H. Qu , M. Raveri , M. Rodríguez-Monroy , A. K. Romer , A. Roodman , B. Rose , M. Sako , E. Sanchez , D. Sanchez Cid , M. Schubnell , D. Scolnic , I. Sevilla-Noarbe , P. Shah , J. Allyn. Smith , M. Smith , M. Soares-Santos , E. Suchyta , M. Sullivan , N. Suntzeff , M. E. C. Swanson , B. O. Sánchez , G. Tarle , G. Taylor , D. Thomas , C. To , M. Toy , M. A. Troxel , B. E. Tucker , D. L. Tucker , S. A. Uddin , M. Vincenzi , A. R. Walker , N. Weaverdyck , R. H. Wechsler , J. Weller , W. Wester , P. Wiseman , M. Yamamoto , F. Yuan , B. Zhang , Y. Zhang

Ultraviolet, Optical, and X-Ray Observations of the Type Ia Supernova 2005am with Swift

We present ultraviolet and optical light curves in six broadband filters and grism spectra obtained by Swift's Ultraviolet/Optical Telescope for the Type Ia supernova SN2005am. The data were collected beginning about four days before the…

Astrophysics · Physics 2010-03-19 P. J. Brown , S. T. Holland , C. James , P. Milne , P. W. A. Roming , K. O. Mason , K. L. Page , A. P. Beardmore , D. Burrows , A. Morgan , C. Gronwall , A. J. Blustin , P. Boyd , M. Still , A. Breeveld , M. de Pasquale , S. Hunsberger , M. Ivanushkina , W. Landsman , K. McGowan , T. Poole , S. Rosen , P. Schady , N. Gehrels

Type Iax Supernovae: A New Class of Stellar Explosion

We describe observed properties of the Type Iax class of supernovae (SNe Iax), consisting of SNe observationally similar to its prototypical member, SN 2002cx. The class currently has 25 members, and we present optical photometry and/or…

Solar and Stellar Astrophysics · Physics 2015-06-12 Ryan J. Foley , P. J. Challis , R. Chornock , M. Ganeshalingam , W. Li , G. H. Marion , N. I. Morrell , G. Pignata , M. D. Stritzinger , J. M. Silverman , X. Wang , J. P. Anderson , A. V. Filippenko , W. L. Freedman , M. Hamuy , S. W. Jha , R. P. Kirshner , C. McCully , S. E. Persson , M. M. Phillips , D. E. Reichart , A. M. Soderberg

SN 2020jgb: A Peculiar Type Ia Supernova Triggered by a Helium-Shell Detonation in a Star-Forming Galaxy

The detonation of a thin ($\lesssim$$0.03\,\mathrm{M_\odot}$) helium shell (He-shell) atop a $\sim$$1\,\mathrm{M_\odot}$ white dwarf (WD) is a promising mechanism to explain normal Type Ia supernovae (SNe Ia), while thicker He-shells and…

High Energy Astrophysical Phenomena · Physics 2023-04-11 Chang Liu , Adam A. Miller , Abigail Polin , Anya E. Nugent , Kishalay De , Peter E. Nugent , Steve Schulze , Avishay Gal-Yam , Christoffer Fremling , Shreya Anand , Igor Andreoni , Peter Blanchard , Thomas G. Brink , Suhail Dhawan , Alexei V. Filippenko , Kate Maguire , Tassilo Schweyer , Huei Sears , Yashvi Sharma , Matthew J. Graham , Steven L. Groom , David Hale , Mansi M. Kasliwal , Frank J. Masci , Josiah Purdum , Benjamin Racine , Jesper Sollerman , Shrinivas R. Kulkarni

Constraints on Cosmological Parameters with a Sample of Type Ia Supernovae from JWST

We investigate the potential of using a sample of very high-redshift ($2\lesssim z \lesssim6$) (VHZ) Type Ia supernovae (SNe~Ia) attainable by the James Webb Space Telescope (JWST) on constraining cosmological parameters. At such high…

Cosmology and Nongalactic Astrophysics · Physics 2022-12-21 Jia Lu , Lifan Wang , Xingzhuo Chen , David Rubin , Saul Perlmutter , Dietrich Baade , Jeremy Mould , Jozsef Vinko , Eniko Regos , Anton M. Koekemoer

Snapping Supernovae at z>1.7

We examine the utility of very high redshift Type Ia supernovae for cosmology and systematic uncertainty control. Next generation space surveys such as the Supernova/Acceleration Probe (SNAP) will obtain thousands of supernovae at z>1.7,…

Astrophysics · Physics 2009-11-11 Greg Aldering , Alex G. Kim , Marek Kowalski , Eric V. Linder , Saul Perlmutter

X-ray Observations of Two Type Ia Supernovae with an H$\alpha$ Line in their Optical Spectrum

We report on Chandra X-ray observations of SN 2016jae and SN 2018cqj, both low luminosity Type Ia supernova that showed the presence of a H line in their early optical spectrum. No X-ray emission is detected at the location of either SN.…

High Energy Astrophysical Phenomena · Physics 2024-07-02 Vikram V. Dwarkadas

Optical Observations of the Nearby Type Ia Supernova 2021hpr

We present the optical photometric and spectroscopic observations of the nearby Type Ia supernova (SN) 2021hpr. The observations covered the phase of $-$14.37 to +63.68 days relative to its maximum luminosity in the $B$ band. The evolution…

High Energy Astrophysical Phenomena · Physics 2022-07-19 Yu Zhang , Tianmeng Zhang , Danzengluobu , Zhitong Li , Pinsong Zhao , Bingqing Zhang , Lin Du , Yinan Zhu , Hong Wu

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

LensWatch: I. Resolved HST Observations and Constraints on the Strongly-Lensed Type Ia Supernova 2022qmx ("SN Zwicky")

Supernovae (SNe) that have been multiply-imaged by gravitational lensing are rare and powerful probes for cosmology. Each detection is an opportunity to develop the critical tools and methodologies needed as the sample of lensed SNe…

Cosmology and Nongalactic Astrophysics · Physics 2024-07-24 J. D. R. Pierel , N. Arendse , S. Ertl , X. Huang , L. A. Moustakas , S. Schuldt , A. J. Shajib , Y. Shu , S. Birrer , M. Bronikowski , J. Hjorth , S. H. Suyu , S. Agarwal , A. Agnello , A. S. Bolton , S. Chakrabarti , C. Cold , F. Courbin , J. M. Della Costa , S. Dhawan , M. Engesser , O. D. Fox , C. Gall , S. Gomez , A. Goobar , C. Jimenez , J. Johansson , G. Li , R. Marques-Chaves , S. Mao , P. A. Mazzali , I. Perez-Fournon , T. Petrushevska , F. Poidevin , A. Rest , W. Sheu , R. Shirley , E. Silver , C. Storfer , T. Treu , R. Wojtak , Y. Zenati

Measuring Type Ia Supernova Distances and Redshifts From Their Multi-band Light Curves

The distance and redshift of a type Ia supernova can be determined simultaneously through its multi-band light curves. This fact may be used for imaging surveys that discover and obtain photometry for large numbers of supernovae; so many…

Astrophysics · Physics 2008-11-26 Alex G. Kim , Ramon Miquel

SN2008am: A Super-Luminous Type IIn Supernova

We present observations and interpretation of the Type IIn supernova SN 2008am discovered by the ROTSE Supernova Verification Project (RSVP). SN 2008am peaked at approximately -22.3 mag at a redshift of z=0.2338, giving it a peak luminosity…

High Energy Astrophysical Phenomena · Physics 2015-05-27 E. Chatzopoulos , J. Craig Wheeler , J. Vinko , R. Quimby , E. L. Robinson , A. A. Miller , R. J. Foley , D. A. Perley , F. Yuan , C. Akerlof , J. S. Bloom