The Data Release of the Sloan Digital Sky Survey-II Supernova Survey

By M. Sako, Bruce A. Bassett, A. Becker, P. Brown, H. Campbell, R. Wolf, D. Cinabro, C. D'Andrea, K. Dawson, F. Dejongh and 39 more. 2014

189 citations recorded by the source corpus.

This paper describes the data release of the Sloan Digital Sky Survey-II (SDSS-II) Supernova Survey conducted between 2005 and 2007. Light curves, spectra, classifications, and ancillary data are presented for 10,258 variable and transient sources discovered through repeat ugriz imaging of SDSS Stripe 82, a 300 deg2 area along the celestial equator. This data release is comprised of all transient sources brighter than r ≃ 22.5 mag with no history of variability prior to 2004. Dedicated spectroscopic observations were performed on a subset of 889 transients, as well as spectra for thousands of transient host galaxies using the SDSS-III BOSS spectrographs. Photometric classifications are provided for the candidates with good multi-color light curves that were not observed spectroscopically, using host galaxy redshift information when available. From these observations, 4607 transients are either spectroscopically confirmed, or likely to be, supernovae, making this the largest sample of supernova candidates ever compiled. We present a new method for SN host-galaxy identification and derive host-galaxy properties including stellar masses, star formation rates, and the average stellar population ages from our SDSS multi-band photometry. We derive SALT2 distance moduli for a total of 1364 SN Ia with spectroscopic redshifts as well as photometric redshifts for a further 624 purely photometric SN Ia candidates. Using the spectroscopically confirmed subset of the three-year SDSS-II SN Ia sample and assuming a flat ΛCDM cosmology, we determine ΩM = 0.315 ± 0.093 (statistical error only) and detect a non-zero cosmological constant at 5.7σ.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/2d98d39caf5b73619d6bd95085d14857ee0a6181

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Citations in the corpus

Clarifying the Hubble constant tension with a Bayesian hierarchical model of the local distance ladder (2017, methodology): “The Hubble flow SNe are sourced from catalogues compiled by Riess et al. (1999); Jha et al. (2006); Hicken et al. (2009, 2012); Guy et al. (2010); Stritzinger et al. (2011); Rest et al. (2014) and Sako et al. (2014), and calibrated according to Scolnic et al. (2015) and Scolnic & Kessler (2016)7.”
Correcting Type Ia Supernova Distances for Selection Biases and Contamination in Photometrically Identified Samples (2016, methodology): “The second step is to apply the NN method (Sako et al. 2014, hereafter referred to as NN) to further reduce the CC contamination and to determine a Type Ia probability needed for the BBC likelihood (§5).”
PHOTOMETRIC SUPERNOVA CLASSIFICATION WITH MACHINE LEARNING (2016, methodology): “Current photometric supernova classification techniques focus on empirically based template fitting (Sako et al. 2008; Sako et al. 2014).”
Neutron Star Mergers Might Not Be the Only Source of r-process Elements in the Milky Way (2018, background): “Using ∼ 450 classified SNe Ia found in the Sloan Digital Sky Survey-II (SDSS-II) Supernova Survey4 (Sako et al. 2014), between 12 % and 40 % of SNe Ia are found in galaxies with stellar masses above 0.5 − 1.0 × 1011 M (see also Uddin et al. 2017), which is roughly the mass range above which…”
Six months of multiwavelength follow-up of the tidal disruption candidate asassn-14li and implied tde rates from asas-sn (2015, methodology): “Support for JLP is in part provided by FONDECYT through the grant 1151445 and by the Ministry of 4 This is based on 3, 2 and 2 TDE candidates in samples of 550, > 2000 (Jones, Riess & Scolnic 2015), and ∼ 2100 (Sako et al. 2014) Type Ia SNe.”
The Pantheon+ Analysis: The Full Data Set and Light-curve Release (2021, methodology): “We then retrieved images from GALEX (Martin et al. 2005), PS1 (Chambers & et al. 2017), SDSS (Ahumada et al. 2020), and 2MASS (Skrutskie et al. 2006).”
Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Cosmological implications from two decades of spectroscopic surveys at the Apache Point Observatory (2020, background): “…were taken from low redshift surveys (Hicken et al. 2009; Contreras et al. 2010), the SDSS-II Supernova Survey (2005–2007; Frieman et al. 2008; Sako et al. 2018), the Supernova Legacy Survey (SNLS, 2003–2008; Guy et al. 2010; Conley et al. 2011; Sullivan et al. 2011), and high redshift…”
Early-time light curves of Type Ib/c supernovae from the SDSS-II Supernova Survey (2014, methodology): “In this paper we present the light curves of a sample of 20 SNe Ib/c in their photospheric phase obtained by the Sloan Digital Sky Survey (SDSS-II) SN survey (York et al. 2000; Sako et al. 2008; Frieman et al. 2008; Sako et al. 2014).”