pith. machine review for the scientific record. sign in

arxiv: 0708.2749 · v1 · submitted 2007-08-21 · 🌌 astro-ph

Recognition: unknown

The Sloan Digital Sky Survey-II Supernova Survey: Technical Summary

Joshua A. Frieman , B. Bassett , A. Becker , C. Choi , D. Cinabro , F. DeJongh , D. L. DePoy , B. Dilday
show 93 more authors
M. Doi P. M. Garnavich C. J. Hogan J. Holtzman M. Im S. Jha R. Kessler K. Konishi H. Lampeitl J. Marriner J. L. Marshall D. McGinnis G. Miknaitis R. C. Nichol J. L. Prieto A. G. Riess M. W. Richmond R. Romani M. Sako D. P. Schneider M. Smith N. Takanashi K. Tokita K. van der Heyden N. Yasuda C. Zheng J. Adelman-McCarthy J. Annis R. J. Assef J. Barentine R. Bender R. D. Blandford W. N. Boroski M. Bremer H. Brewington C. A. Collins A. Crotts J. Dembicky J. Eastman A. Edge E. Edmondson E. Elson M. E. Eyler A. V. Filippenko R. J. Foley S. Frank A. Goobar T. Gueth J. E. Gunn M. Harvanek U. Hopp Y. Ihara \v{Z}. Ivezi\'c S. Kahn J. Kaplan S. Kent W. Ketzeback S. J. Kleinman W. Kollatschny R. G. Kron J. Krzesi\'nski D. Lamenti G. Leloudas H. Lin D. C. Long J. Lucey R. H. Lupton E. Malanushenko V. Malanushenko R. J. McMillan J. Mendez C. W. Morgan T. Morokuma A. Nitta L. Ostman K. Pan C. M. Rockosi A. K. Romer P. Ruiz-Lapuente G. Saurage K. Schlesinger S. A. Snedden J. Sollerman C. Stoughton M. Stritzinger M. Subbarao D. Tucker P. Vaisanen L. C. Watson S. Watters J. C. Wheeler B. Yanny D. York
Authors on Pith no claims yet
classification 🌌 astro-ph
keywords confirmedfirstobservationsseasonssupernovasurveycurvesdigital
0
0 comments X
read the original abstract

The Sloan Digital Sky Survey-II (SDSS-II) has embarked on a multi-year project to identify and measure light curves for intermediate-redshift (0.05 < z < 0.35) Type Ia supernovae (SNe Ia) using repeated five-band (ugriz) imaging over an area of 300 sq. deg. The survey region is a stripe 2.5 degrees wide centered on the celestial equator in the Southern Galactic Cap that has been imaged numerous times in earlier years, enabling construction of a deep reference image for discovery of new objects. Supernova imaging observations are being acquired between 1 September and 30 November of 2005-7. During the first two seasons, each region was imaged on average every five nights. Spectroscopic follow-up observations to determine supernova type and redshift are carried out on a large number of telescopes. In its first two three-month seasons, the survey has discovered and measured light curves for 327 spectroscopically confirmed SNe Ia, 30 probable SNe Ia, 14 confirmed SNe Ib/c, 32 confirmed SNe II, plus a large number of photometrically identified SNe Ia, 94 of which have host-galaxy spectra taken so far. This paper provides an overview of the project and briefly describes the observations completed during the first two seasons of operation.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. On the Gamma-ray Efficiency of Superluminous Supernovae: Potential Detections and Population-Level Constraints

    astro-ph.HE 2026-04 unverdicted novelty 7.0

    No significant GeV emission from 223 SLSNe constrains GeV-to-optical efficiency to η < 1.3×10^{-3}, with <0.7% of events allowed above 10^{-2}; SN 2017egm shows a ~4σ excess favoring magnetar origin while SN 2018bsz does not.

  2. Empirical estimates of how massive galaxies can be in {\Lambda}CDM

    astro-ph.GA 2026-05 conditional novelty 6.0

    Corrected empirical limits show the most massive galaxies never exceed the theoretical baryonic maximum of 0.16 times halo virial mass, keeping observations consistent with LambdaCDM at all redshifts.

  3. Empirical estimates of how massive galaxies can be in {\Lambda}CDM

    astro-ph.GA 2026-05 unverdicted novelty 5.0

    Empirical upper limits on galaxy stellar masses from extreme value statistics, after correcting for Eddington bias and halo mass scatter, remain below the theoretical baryonic maximum of 0.16 times halo mass at all re...

  4. Cosmology-Independent Constraints on the Etherington Relation and SNeIa Absolute Magnitude Evolution from DESI-DR2

    astro-ph.CO 2026-04 accept novelty 4.0

    DESI-DR2 angular diameter distances and SNeIa luminosity distances are statistically consistent with the Etherington relation, yielding a constraint on SNeIa absolute magnitude evolution of dM/dz = 0.07 ± 0.07.