Related papers: First-Year Spectroscopy for the SDSS-II Supernova …

Identification of Type Ia Supernovae at Redshift 1.3 and Beyond with the Advanced Camera for Surveys on HST

We present discoveries of SNe Ia at z > 1 and the photometric diagnostic used to discriminate them from other types of SNe detected during the GOODS Hubble Space Telescope Treasury program with the Advanced Camera for Surveys (ACS).…

Astrophysics · Physics 2016-08-30 Adam G. Riess , Louis-Gregory Strolger , John Tonry , Zlatan Tsvetanov , Stefano Casertano , Henry C. Ferguson , Bahram Mobasher , Peter Challis , Nino Panagia , Alexei V. Filippenko , Weidong Li , Ryan Chornock , Robert P. Kirshner , Bruno Leibundgut , Mark Dickinson , Anton Koekemoer , Norman A. Grogin , Mauro Giavalisco

A unified explanation for the supernova rate-galaxy mass dependency based on supernovae discovered in Sloan galaxy spectra

Using a method to discover and classify supernovae (SNe) in galaxy spectra, we detect 91 Type Ia SNe (SNe Ia) and 16 Type II SNe (SNe II) among 740,000 galaxies of all types and 215,000 star-forming galaxies without active galactic nuclei,…

High Energy Astrophysical Phenomena · Physics 2015-06-23 Or Graur , Federica B. Bianco , Maryam Modjaz

SDSS-II Supernova Survey: An Analysis of the Largest Sample of Type Ia Supernovae and Correlations with Host-Galaxy Spectral Properties

Using the largest single-survey sample of Type Ia supernovae (SNe Ia) to date, we study the relationship between properties of SNe Ia and those of their host galaxies, focusing primarily on correlations with Hubble residuals (HR). Our…

Cosmology and Nongalactic Astrophysics · Physics 2016-04-27 Rachel C. Wolf , Chris B. D'Andrea , Ravi R. Gupta , Masao Sako , John A. Fischer , Rick Kessler , Saurabh W. Jha , Marisa C. March , Daniel M. Scolnic , Johanna-Laina Fischer , Heather Campbell , Robert C. Nichol , Matthew D. Olmstead , Michael Richmond , Donald P. Schneider , Mathew Smith

Photometric selection of high-redshift type Ia supernovae

We present a method for selecting high-redshift type Ia supernovae (SNe Ia) located via rolling SN searches. The technique, using both color and magnitude information of events from only 2-3 epochs of multi-band real-time photometry, is…

Astrophysics · Physics 2008-11-26 M. Sullivan , D. A. Howell , K. Perrett , P. Nugent , P. Astier , E. Aubourg , D. Balam , S. Basa , R. Carlberg , A. Conley , S. Fabbro , D. Fouchez , J. Guy , I. Hook , H. Lafoux , J. D. Neill , R. Pain , N. Palanque-Delabrouille , C. Pritchet , N. Regnault , J. Rich , R. Taillet , G. Aldering , S. Baumont , J. Bronder , M. Filiol , R. Knop , S. Perlmutter , C. Tao

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

Optical Spectra of Type Ia Supernovae at z=0.46 and z=1.2

We present optical spectra, obtained with the Keck 10-m telescope, of two high-redshift type Ia supernovae (SNe Ia) discovered by the High-z Supernova Search Team: SN 1999ff at z=0.455 and SN 1999fv at z~1.2, the highest-redshift published…

Astrophysics · Physics 2009-10-31 Alison L. Coil , Thomas Matheson , Alexei V. Filippenko , Douglas C. Leonard , John Tonry , Adam G. Riess , Peter Challis , Alejandro Clocchiatti , Peter M. Garnavich , Craig J. Hogan , Saurabh Jha , Robert P. Kirshner , B. Leibundgut , M. M. Phillips , Brian P. Schmidt , Robert A. Schommer , R. Chris Smith , Alicia M. Soderberg , J. Spyromilio , Christopher Stubbs , Nicholas B. Suntzeff , Patrick Woudt

ZTF SN Ia DR2: The spectral diversity of Type Ia supernovae in a volume-limited sample

More than 3000 spectroscopically confirmed Type Ia supernovae (SNe Ia) are presented in the Zwicky Transient Facility SN Ia Data Release 2 (ZTF DR2). In this paper, we detail the spectral properties of 482 SNe Ia near maximum light, up to a…

High Energy Astrophysical Phenomena · Physics 2025-08-18 U. Burgaz , K. Maguire , G. Dimitriadis , L. Harvey , R. Senzel , J. Sollerman , J. Nordin , L. Galbany , M. Rigault , M. Smith , A. Goobar , J. Johansson , P. Rosnet , M. Amenouche , M. Deckers , S. Dhawan , M. Ginolin , Y. -L. Kim , A. A. Miller , T. E. Muller-Bravo , P. E. Nugent , J. H. Terwel , R. Dekany , A. Drake , M. J. Graham , S. L. Groom , M. M. Kasliwal , S. R. Kulkarni , K. Nolan , G. Nir , R. L. Riddle , B. Rusholme , Y. Sharma

The Hubble Space Telescope Cluster Supernova Survey: VI. The Volumetric Type Ia Supernova Rate

We present a measurement of the volumetric Type Ia supernova (SN Ia) rate out to z ~ 1.6 from the Hubble Space Telescope Cluster Supernova Survey. In observations spanning 189 orbits with the Advanced Camera for Surveys we discovered 29…

Cosmology and Nongalactic Astrophysics · Physics 2019-08-14 K. Barbary , G. Aldering , R. Amanullah , M. Brodwin , N. Connolly , K. S. Dawson , M. Doi , P. Eisenhardt , L. Faccioli , V. Fadeyev , H. K. Fakhouri , A. S. Fruchter , D. G. Gilbank , M. D. Gladders , G. Goldhaber , A. Goobar , T. Hattori , E. Hsiao , X. Huang , Y. Ihara , N. Kashikawa , B. Koester , K. Konishi , M. Kowalski , C. Lidman , L. Lubin , J. Meyers , T. Morokuma , T. Oda , N. Panagia , S. Perlmutter , M. Postman , P. Ripoche , P. Rosati , D. Rubin , D. J. Schlegel , A. L. Spadafora , S. A. Stanford , M. Strovink , N. Suzuki , N. Takanashi , K. Tokita , N. Yasuda

The Supernova Legacy Survey: Measurement of Omega_M, Omega_Lambda and w from the First Year Data Set

We present distance measurements to 71 high redshift type Ia supernovae discovered during the first year of the 5-year Supernova Legacy Survey (SNLS). These events were detected and their multi-color light-curves measured using the…

Astrophysics · Physics 2015-01-27 P. Astier , J. Guy , N. Regnault , R. Pain , E. Aubourg , D. Balam , S. Basa , R. G. Carlberg , S. Fabbro , D. Fouchez , I. M. Hook , D. A. Howell , H. Lafoux , J. D. Neill , N. Palanque-Delabrouille , K. Perrett , C. J. Pritchet , J. Rich , M. Sullivan , R. Taillet , G. Aldering , P. Antilogus , V. Arsenijevic , C. Balland , S. Baumont , J. Bronder , H. Courtois , R. S. Ellis , M. Filiol , A. C. Goncalves , A. Goobar , D. Guide , D. Hardin , V. Lusset , C. Lidman , R. McMahon , M. Mouchet , A. Mourao , S. Perlmutter , P. Ripoche , C. Tao , N. Walton

Quantitative Classification of Type I Supernovae Using Spectroscopic Features at Maximum Brightness

We present a set of new quantitative classification criteria for major subclasses of Type I Supernovae (SNe). We analyze peak spectra of 146 SNe Ia from the Berkeley Supernova Ia Program (BSNIP), 12 SNe Ib, 19 SNe Ic (including 5 SNe Ic-BL)…

High Energy Astrophysical Phenomena · Physics 2017-07-11 Fengwu Sun , Avishay Gal-Yam

Optical Spectroscopy of Type Ia Supernovae

We present 432 low-dispersion optical spectra of 32 Type Ia supernovae (SNe Ia) that also have well-calibrated light curves. The coverage ranges from 6 epochs to 36 epochs of spectroscopy. Most of the data were obtained with the 1.5m…

Astrophysics · Physics 2009-11-13 T. Matheson , R. P. Kirshner , P. Challis , S. Jha , P. M. Garnavich , P. Berlind , M. L. Calkins , S. Blondin , Z. Balog , A. E. Bragg , N. Caldwell , K. Dendy Concannon , E. E. Falco , G. J. M. Graves , J. P. Huchra , J. Kuraszkiewicz , J. A. Mader , A. Mahdavi , M. Phelps , K. Rines , I. Song , B. J. Wilkes

Supernovae in the Subaru Deep Field: the rate and delay-time distribution of type Ia supernovae out to redshift 2

The type Ia supernova (SN Ia) rate, when compared to the cosmic star formation history (SFH), can be used to derive the delay-time distribution (DTD) of SNe Ia, which can distinguish among progenitor models. We present the results of a SN…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Or Graur , Dovi Poznanski , Dan Maoz , Naoki Yasuda , Tomonori Totani , Masataka Fukugita , Alexei V. Filippenko , Ryan J. Foley , Jeffrey M. Silverman , Avishay Gal-Yam , Assaf Horesh , Buell T. Jannuzi

Photo-zSNthesis: Converting Type Ia Supernova Lightcurves to Redshift Estimates via Deep Learning

Upcoming photometric surveys will discover tens of thousands of Type Ia supernovae (SNe Ia), vastly outpacing the capacity of our spectroscopic resources. In order to maximize the science return of these observations in the absence of…

Cosmology and Nongalactic Astrophysics · Physics 2023-09-11 Helen Qu , Masao Sako

Line Profiles of Intermediate Redshift Type Ia Supernovae

We present the temporal evolution of line profiles ranging from near ultraviolet to optical wavelengths by analyzing 59 Subaru telescope spectra of normal Type Ia Supernovae (SNe Ia) in the intermediate redshift range (0.05 < z < 0.4)…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-19 Kohki Konishi , Joshua A. Frieman , Ariel Goobar , John Marriner , Jakob Nordin , Linda Östman , Masao Sako , Donald P. Schneider , Naoki Yasuda

Extracting clean supernova spectra

We use a new technique to extract the spectrum of a supernova from that of the contaminating background of its host galaxy, and apply it to the specific case of high-redshift Type Ia supernova (SN Ia) spectroscopy. The algorithm is based on…

Astrophysics · Physics 2007-05-23 S. Blondin , J. R. Walsh , B. Leibundgut , G. Sainton

The Spectroscopic Diversity of Type Ia Supernovae

We present 2603 spectra of 462 nearby Type Ia supernovae (SN Ia) obtained during 1993-2008 through the Center for Astrophysics Supernova Program. Most of the spectra were obtained with the FAST spectrograph at the FLWO 1.5m telescope and…

Solar and Stellar Astrophysics · Physics 2012-04-24 S. Blondin , T. Matheson , R. P. Kirshner , K. S. Mandel , P. Berlind , M. Calkins , P. Challis , P. M. Garnavich , S. W. Jha , M. Modjaz , A. G. Riess , B. P. Schmidt

The Hubble Higher-Z Supernova Search: Supernovae to z=1.6 and Constraints on Type Ia Progenitor Models

We present results from the Hubble Higher-z Supernova Search, the first space-based open field survey for supernovae (SNe). In cooperation with the Great Observatories Origins Deep Survey, we have used the Hubble Space Telescope with the…

Astrophysics · Physics 2009-11-10 L. -G. Strolger , A. G. Riess , T. Dahlen , M. Livio , N. Panagia , P. Challis , J. L. Tonry , A. V. Filippenko , R. Chornock , H. Ferguson , A. Koekemoer , B. Mobasher , M. Dickinson , M. Giavalisco , S. Casertano , R. Hook , S. Blondin , B. Leibundgut , M. Nonino , P. Rosati , H. Spinrad , C. C. Steidel , D. Stern , P. M. Garnavich , T. Matheson , N. Grogin , A. Hornschemeier , C. Kretchmer , V. G. Laidler , K. Lee , R. Lucas , D. de Mello , L. A. Moustakas , S. Ravindranath , M. Richardson , E. Taylor

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

First Cosmology Results using Type Ia Supernova from the Dark Energy Survey: Simulations to Correct Supernova Distance Biases

We describe catalog-level simulations of Type Ia supernova (SN~Ia) light curves in the Dark Energy Survey Supernova Program (DES-SN), and in low-redshift samples from the Center for Astrophysics (CfA) and the Carnegie Supernova Project…

Cosmology and Nongalactic Astrophysics · Physics 2019-05-13 R. Kessler , D. Brout , C. B. D'Andrea , T. M. Davis , S. R. Hinton , A. G. Kim , J. Lasker , C. Lidman , E. Macaulay , A. Möller , M. Sako , D. Scolnic , M. Smith , M. Sullivan , B. Zhang , P. Andersen , J. Asorey , A. Avelino , J. Calcino , D. Carollo , P. Challis , M. Childress , A. Clocchiatti , S. Crawford , A. V. Filippenko , R. J. Foley , K. Glazebrook , J. K. Hoormann , E. Kasai , R. P. Kirshner , G. F. Lewis , K. S. Mandel , M. March , E. Morganson , D. Muthukrishna , P. Nugent , Y. -C. Pan , N. E. Sommer , E. Swann , R. C. Thomas , B. E. Tucker , S. A. Uddin , T. M. C. Abbott , S. Allam , J. Annis , S. Avila , M. Banerji , K. Bechtol , E. Bertin , D. Brooks , E. Buckley-Geer , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , M. Crocce , L. N. da Costa , C. Davis , J. De Vicente , S. Desai , H. T. Diehl , P. Doel , T. F. Eifler , B. Flaugher , P. Fosalba , J. Frieman , J. Garcia-Bellido , E. Gaztanaga , D. W. Gerdes , D. Gruen , R. A. Gruendl , G. Gutierrez , W. G. Hartley , D. L. Hollowood , K. Honscheid , D. J. James , M. W. G. Johnson , M. D. Johnson , E. Krause , K. Kuehn , N. Kuropatkin , O. Lahav , T. S. Li , M. Lima , J. L. Marshall , P. Martini , F. Menanteau , C. J. Miller , R. Miquel , B. Nord , A. A. Plazas , A. Roodman , E. Sanchez , V. Scarpine , R. Schindler , M. Schubnell , S. Serrano , I. Sevilla-Noarbe , M. Soares-Santos , F. Sobreira , E. Suchyta , G. Tarle , D. Thomas , A. R. Walker , Y. Zhang

Supernova rates from the Southern inTermediate Redshift ESO Supernova Search (STRESS)

To measure the supernova (SN) rates at intermediate redshift we performed the Southern inTermediate Redshift ESO Supernova Search (STRESS). Unlike most of the current high redshift SN searches, this survey was specifically designed to…

Astrophysics · Physics 2009-11-13 M. T. Botticella , M. Riello , E. Cappellaro , S. Benetti , G. Altavilla , A. Pastorello , M. Turatto , L. Greggio , F. Patat , S. Valenti , L. Zampieri , A. Harutyunyan , G. Pignata , S. Taubenberger