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Title: PHOTOMETRIC ESTIMATES OF REDSHIFTS AND DISTANCE MODULI FOR TYPE Ia SUPERNOVAE

Abstract

Large planned photometric surveys will discover hundreds of thousands of supernovae (SNe), outstripping the resources available for spectroscopic follow-up and necessitating the development of purely photometric methods to exploit these events for cosmological study. We present a light curve fitting technique for type Ia supernova (SN Ia) photometric redshift (photo-z) estimation in which the redshift is determined simultaneously with the other fit parameters. We implement this 'LCFIT+Z' technique within the frameworks of the MLCS2K2 and SALTII light curve fit methods and determine the precision on the redshift and distance modulus. This method is applied to a spectroscopically confirmed sample of 296 SNe Ia from the Sloan Digital Sky Survey-II (SDSS-II) SN Survey and 37 publicly available SNe Ia from the Supernova Legacy Survey (SNLS). We have also applied the method to a large suite of realistic simulated light curves for existing and planned surveys, including the SDSS, SNLS, and the Large Synoptic Survey Telescope. When intrinsic SN color fluctuations are included, the photo-z precision for the simulation is consistent with that in the data. Finally, we compare the LCFIT+Z photo-z precision with previous results using color-based SN photo-z estimates.

Authors:
;  [1];  [2]; ;  [3]; ;  [4];  [5];  [6];  [7];  [8]; ;  [9];  [10];  [11];  [12];  [13]
  1. Department of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637 (United States)
  2. Department of Physics and Astronomy, Wayne State University, Detroit, MI 48202 (United States)
  3. Department of Mathematics and Applied Mathematics, University of Cape Town, Rondebosch 7701 (South Africa)
  4. Department of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, NJ 08854 (United States)
  5. University of Notre Dame, 225 Nieuwland Science, Notre Dame, IN 46556-5670 (United States)
  6. Center for Particle Astrophysics, Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510 (United States)
  7. Institute of Cosmology and Gravitation, Mercantile House, Hampshire Terrace, University of Portsmouth, Portsmouth PO1 2EG (United Kingdom)
  8. Department of Physics and Astronomy, University of Pennsylvania, 203 South 33rd Street, Philadelphia, PA 19104 (United States)
  9. Argonne National Laboratory, 9700 S. Cass Avenue, Lemont, IL 60437 (United States)
  10. Apache Point Observatory, P.O. Box 59, Sunspot, NM 88349 (United States)
  11. Department of Physics, Stockholm University, Albanova University Center, SE-106 91 Stockholm (Sweden)
  12. Department of Astronomy and Astrophysics, The Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802 (United States)
  13. Las Campanas Observatory, Carnegie Observatories, Casilla 601, La Serena (Chile)
Publication Date:
OSTI Identifier:
21452896
Resource Type:
Journal Article
Journal Name:
Astrophysical Journal
Additional Journal Information:
Journal Volume: 717; Journal Issue: 1; Other Information: DOI: 10.1088/0004-637X/717/1/40; Journal ID: ISSN 0004-637X
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; COLOR; DATA ANALYSIS; PHOTOMETRY; RED SHIFT; SIMULATION; SUPERNOVAE; TELESCOPES; BINARY STARS; ERUPTIVE VARIABLE STARS; OPTICAL PROPERTIES; ORGANOLEPTIC PROPERTIES; PHYSICAL PROPERTIES; STARS; VARIABLE STARS

Citation Formats

Kessler, Richard, Frieman, Joshua A, Cinabro, David, Bassett, Bruce, Smith, Mathew, Dilday, Benjamin, Jha, Saurabh, Garnavich, Peter M, Marriner, John, Nichol, Robert C, Sako, Masao, Bernstein, Joseph P, Kuhlmann, Stephen, Bizyaev, Dmitry, Goobar, Ariel, Schneider, Donald P, and Stritzinger, Maximilian. PHOTOMETRIC ESTIMATES OF REDSHIFTS AND DISTANCE MODULI FOR TYPE Ia SUPERNOVAE. United States: N. p., 2010. Web. doi:10.1088/0004-637X/717/1/40.
Kessler, Richard, Frieman, Joshua A, Cinabro, David, Bassett, Bruce, Smith, Mathew, Dilday, Benjamin, Jha, Saurabh, Garnavich, Peter M, Marriner, John, Nichol, Robert C, Sako, Masao, Bernstein, Joseph P, Kuhlmann, Stephen, Bizyaev, Dmitry, Goobar, Ariel, Schneider, Donald P, & Stritzinger, Maximilian. PHOTOMETRIC ESTIMATES OF REDSHIFTS AND DISTANCE MODULI FOR TYPE Ia SUPERNOVAE. United States. https://doi.org/10.1088/0004-637X/717/1/40
Kessler, Richard, Frieman, Joshua A, Cinabro, David, Bassett, Bruce, Smith, Mathew, Dilday, Benjamin, Jha, Saurabh, Garnavich, Peter M, Marriner, John, Nichol, Robert C, Sako, Masao, Bernstein, Joseph P, Kuhlmann, Stephen, Bizyaev, Dmitry, Goobar, Ariel, Schneider, Donald P, and Stritzinger, Maximilian. 2010. "PHOTOMETRIC ESTIMATES OF REDSHIFTS AND DISTANCE MODULI FOR TYPE Ia SUPERNOVAE". United States. https://doi.org/10.1088/0004-637X/717/1/40.
@article{osti_21452896,
title = {PHOTOMETRIC ESTIMATES OF REDSHIFTS AND DISTANCE MODULI FOR TYPE Ia SUPERNOVAE},
author = {Kessler, Richard and Frieman, Joshua A and Cinabro, David and Bassett, Bruce and Smith, Mathew and Dilday, Benjamin and Jha, Saurabh and Garnavich, Peter M and Marriner, John and Nichol, Robert C and Sako, Masao and Bernstein, Joseph P and Kuhlmann, Stephen and Bizyaev, Dmitry and Goobar, Ariel and Schneider, Donald P and Stritzinger, Maximilian},
abstractNote = {Large planned photometric surveys will discover hundreds of thousands of supernovae (SNe), outstripping the resources available for spectroscopic follow-up and necessitating the development of purely photometric methods to exploit these events for cosmological study. We present a light curve fitting technique for type Ia supernova (SN Ia) photometric redshift (photo-z) estimation in which the redshift is determined simultaneously with the other fit parameters. We implement this 'LCFIT+Z' technique within the frameworks of the MLCS2K2 and SALTII light curve fit methods and determine the precision on the redshift and distance modulus. This method is applied to a spectroscopically confirmed sample of 296 SNe Ia from the Sloan Digital Sky Survey-II (SDSS-II) SN Survey and 37 publicly available SNe Ia from the Supernova Legacy Survey (SNLS). We have also applied the method to a large suite of realistic simulated light curves for existing and planned surveys, including the SDSS, SNLS, and the Large Synoptic Survey Telescope. When intrinsic SN color fluctuations are included, the photo-z precision for the simulation is consistent with that in the data. Finally, we compare the LCFIT+Z photo-z precision with previous results using color-based SN photo-z estimates.},
doi = {10.1088/0004-637X/717/1/40},
url = {https://www.osti.gov/biblio/21452896}, journal = {Astrophysical Journal},
issn = {0004-637X},
number = 1,
volume = 717,
place = {United States},
year = {Thu Jul 01 00:00:00 EDT 2010},
month = {Thu Jul 01 00:00:00 EDT 2010}
}