CfA4: LIGHT CURVES FOR 94 TYPE Ia SUPERNOVAE
By M. Hicken, P. Challis, R. Kirshner, Armin Rest, C. Cramer, W. M. Wood-Vasey, Gáspár Á. Bakos, P. Berlind, W. Brown, N. Caldwell and 29 more. 2012
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We present multi-band optical photometry of 94 spectroscopically confirmed Type Ia supernovae (SNe Ia) in the redshift range 0.0055–0.073, obtained between 2006 and 2011. There are a total of 5522 light-curve points. We show that our natural-system SN photometry has a precision of ≲ 0.03 mag in BVr′i′, ≲ 0.06 mag in u′, and ≲ 0.07 mag in U for points brighter than 17.5 mag and estimate that it has a systematic uncertainty of 0.014, 0.010, 0.012, 0.014, 0.046, and 0.073 mag in BVr′i′u′U, respectively. Comparisons of our standard-system photometry with published SN Ia light curves and comparison stars reveal mean agreement across samples in the range of ∼0.00–0.03 mag. We discuss the recent measurements of our telescope-plus-detector throughput by direct monochromatic illumination by Cramer et al. This technique measures the whole optical path through the telescope, auxiliary optics, filters, and detector under the same conditions used to make SN measurements. Extremely well characterized natural-system passbands (both in wavelength and over time) are crucial for the next generation of SN Ia photometry to reach the 0.01 mag accuracy level. The current sample of low-z SNe Ia is now sufficiently large to remove most of the statistical sampling error from the dark-energy error budget. But pursuing the dark-energy systematic errors by determining highly accurate detector passbands, combining optical and near-infrared (NIR) photometry and spectra, using the nearby sample to illuminate the population properties of SNe Ia, and measuring the local departures from the Hubble flow will benefit from larger, carefully measured nearby samples.
Subfields: Astronomy and Astrophysics
View Paper: https://www.semanticscholar.org/paper/76e61df4f0abdb0860da7ec422f77853d02e89cf
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Citations in the corpus
- Improved cosmological constraints from a joint analysis of the SDSS-II and SNLS supernova samples (2014, background): “…additional spectroscopically confirmed SNe Ia from the 5 year SNLS sample; extended samples from several low-z experiments (Stritzinger et al. 2011; Hicken et al. 2012); and numerous spectral data samples (Blondin et al. 2012; Silverman et al. 2012; Maguire et al. 2012; Pereira et al. 2013), which…”
- COSMOLOGICAL CONSTRAINTS FROM MEASUREMENTS OF TYPE Ia SUPERNOVAE DISCOVERED DURING THE FIRST 1.5 yr OF THE Pan-STARRS1 SURVEY (2013, methodology): “We also use the SN Ia compiled more recently by CfA3 (Hicken et al. 2009a, 185 SNe), CSP (Contreras et al. 2010, 85 SNe), and CfA4 (Hicken et al. 2012, 94 SNe).”
- TYPE Iax SUPERNOVAE: A NEW CLASS OF STELLAR EXPLOSION (2012, methodology): “Optical and UV photometry of SN 2008ae was also published as part of the CfA4 data release (Hicken et al. 2012) and the Swift photometry compilation (Milne et al. 2010), respectively.”
- The Carnegie Supernova Project. I. Third Photometry Data Release of Low-redshift Type Ia Supernovae and Other White Dwarf Explosions (2017, methodology): “Other useful optical and near-IR observations of Type Ia SNe include the photometry obtained by the Center for Astrophysics group (Hicken et al. 2009, 2012; Friedman et al. 2015).”
- The Complete Light-curve Sample of Spectroscopically Confirmed SNe Ia from Pan-STARRS1 and Cosmological Constraints from the Combined Pantheon Sample (2017, methodology): “Many groups have worked on assembling large sets of low-redshift (0.01<z<0.1) SNe (e.g., CfA1-CfA4, Riess et al. 1999; Jha et al. 2006; Hicken et al. 2009a, 2009b, 2012; CSP, Contreras et al. 2010; Folatelli et al. 2010; Stritzinger et al. 2011; LOSS, Ganeshalingam et al. 2013).”
- The Pantheon+ Analysis: Cosmological Constraints (2022, background): “021; Chen et al. 2020; CSP; Krisciunas et al. 2017b; CfA1; Riess et al. 1999; CfA2; Jha et al. 2006; CfA3; Hicken et al. 2009; CfA4; Hicken et al. 2012; and numerous smaller low-redshift samples1 of one to two SNe given by Milne et al. 2010; Stritzinger et al. 2010; Tsvetkov & Elenin 2010; Zhang et ”
- The Pantheon+ Analysis: The Full Data Set and Light-curve Release (2021, background): “Hicken et al. (2012) Where is the site for the SN data? https://www.cfa.harvard.edu/supernova/CfA4/ What system is the SN in?”
- 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.”
- Measuring Dark Energy Properties with Photometrically Classified Pan-STARRS Supernovae. II. Cosmological Parameters (2017, methodology): “We also include the most recent CfA SN compilation (CfA4; Hicken et al. 2012) and the second CSP data release (Stritzinger et al. 2011), which were not included in the JLA analysis but are used in the Rest et al. (2014) and S17 PS1 cosmological analyses.”
- HIGH-DENSITY CIRCUMSTELLAR INTERACTION IN THE LUMINOUS TYPE IIn SN 2010jl: THE FIRST 1100 DAYS (2013, methodology): “Color-terms and filter response functions were adopted from Hicken et al. (2012) for the FLWO and from Ergon et al. (2013) for the NOT.”
- Testing ΛCDM at the lowest redshifts with SN Ia and galaxy velocities (2016, methodology): “es corrected according to [46]. The sample has 50% more SNe than the JLA sample, primarily due to the addition of the second data release of the CSP SN survey [47] and the addition of the CfA4 survey [48]. The recalibration given in [45] uses the relative consistency of the Pan-STARRS1 photometry ov”