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Title: The Foundation Supernova Survey: Measuring Cosmological Parameters with Supernovae from a Single Telescope

Abstract

Measurements of the dark energy equation-of-state parameter, w, have been limited by uncertaintyin the selection effects and photometric calibration of $z <0.1$ Type Ia supernovae (SNe Ia). The Foundation Supernova Survey is designed to lower these uncertainties by creating a new sample of $z < 0.1$ SNe Ia observed on the Pan-STARRS system. Here, we combine the Foundation sample with SNe from the Pan-STRRS Medium Deep Survey and measure cosmological parameters with 1,338 SNe from a single telescope and a single, well-calibrated photometric system. For the firsttime, both the low-z and high-z data are predominantly discovered by surveys that do not target pre-selected galaxies, reducing selection bias uncertainties. The $z > 0.1$ data include 875 SNe without spectroscopic classifications and we show that we can robustly marginalize over CC SN contamination. We measure Foundation Hubble residuals to be fainter than the pre-existing low-z Hubble residualsby 0.046±0.027 mag (stat+sys). By combining the SN Ia data with cosmic microwave backgroundconstraints, we find w = -0.938±0.053, consistent with $Λ$CDM. With 463 spectroscopically classified SNe Ia alone, we measure w = -0.933±0.061. Using the more homogeneous and better-characterized Foundation sample gives a 55% reduction in the systematic uncertainty attributed to SN Ia sampleselection biases.more » Although use of just a single photometric system at low and high redshift increases the impact of photometric calibration uncertainties in this analysis, previous low-z samples may have correlated calibration uncertainties that were neglected in past studies. The full Foundation sample will observe up to 800 SNe to anchor the LSST and WFIRST Hubble diagrams.« less

Authors:
ORCiD logo [1];  [2];  [1];  [3]; ORCiD logo [2];  [4]; ORCiD logo [5]; ORCiD logo [1];  [6];  [4]; ORCiD logo [5]; ORCiD logo [6];  [7]; ORCiD logo [1];  [8];  [9]; ORCiD logo [10];  [11];  [3];  [5] more »;  [1]; ORCiD logo [4];  [12]; ORCiD logo [5]; ORCiD logo [5]; ORCiD logo [13];  [13]; ORCiD logo [5]; ORCiD logo [5];  [5] « less
  1. Univ. of California, Santa Cruz, CA (United States)
  2. Univ. of Chicago, IL (United States)
  3. Space Telescope Science Inst., Baltimore, MD (United States); Johns Hopkins Univ., Baltimore, MD (United States). Dept. of Physics and Astronomy
  4. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States)
  5. Univ. of Hawaii, Honolulu, HI (United States)
  6. Rutgers Univ., Piscataway, NJ (United States)
  7. Johns Hopkins Univ., Baltimore, MD (United States). Dept. of Physics and Astronomy
  8. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States); Gordon and Betty Moore Foundation, Palo Alto, CA (United States)
  9. Villanova Univ., Villanova, PA (United States)
  10. Space Telescope Science Inst., Baltimore, MD (United States)
  11. Division of Theoretical Astronomy, National Astronomical Observatory of Japan (Japan); Academia Sinica, Taipei (Taiwan)
  12. Ohio Univ., Athens, OH (United States)
  13. Queen's Univ., Belfast, Northern Ireland (United Kingdom)
Publication Date:
Research Org.:
Univ. of Chicago, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1593851
Grant/Contract Number:  
[SC0009924]
Resource Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal (Online)
Additional Journal Information:
[Journal Name: The Astrophysical Journal (Online); Journal Volume: 881; Journal Issue: 1]; Journal ID: ISSN 1538-4357
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; observations; cosmology: dark energy; supernovae: general

Citation Formats

Jones, D. O., Scolnic, D. M., Foley, R. J., Rest, A., Kessler, R., Challis, P. M., Chambers, K. C., Coulter, D. A., Dettman, K. G., Foley, M. M., Huber, M. E., Jha, S. W., Johnson, E., Kilpatrick, C. D., Kirshner, R. P., Manuel, J., Narayan, G., Pan, Y. -C., Riess, A. G., Schultz, A. S. B., Siebert, M. R., Berger, E., Chornock, R., Flewelling, H., Magnier, E. A., Smartt, S. J., Smith, K. W., Wainscoat, R. J., Waters, C., and Willman, M. The Foundation Supernova Survey: Measuring Cosmological Parameters with Supernovae from a Single Telescope. United States: N. p., 2019. Web. doi:10.3847/1538-4357/ab2bec.
Jones, D. O., Scolnic, D. M., Foley, R. J., Rest, A., Kessler, R., Challis, P. M., Chambers, K. C., Coulter, D. A., Dettman, K. G., Foley, M. M., Huber, M. E., Jha, S. W., Johnson, E., Kilpatrick, C. D., Kirshner, R. P., Manuel, J., Narayan, G., Pan, Y. -C., Riess, A. G., Schultz, A. S. B., Siebert, M. R., Berger, E., Chornock, R., Flewelling, H., Magnier, E. A., Smartt, S. J., Smith, K. W., Wainscoat, R. J., Waters, C., & Willman, M. The Foundation Supernova Survey: Measuring Cosmological Parameters with Supernovae from a Single Telescope. United States. doi:10.3847/1538-4357/ab2bec.
Jones, D. O., Scolnic, D. M., Foley, R. J., Rest, A., Kessler, R., Challis, P. M., Chambers, K. C., Coulter, D. A., Dettman, K. G., Foley, M. M., Huber, M. E., Jha, S. W., Johnson, E., Kilpatrick, C. D., Kirshner, R. P., Manuel, J., Narayan, G., Pan, Y. -C., Riess, A. G., Schultz, A. S. B., Siebert, M. R., Berger, E., Chornock, R., Flewelling, H., Magnier, E. A., Smartt, S. J., Smith, K. W., Wainscoat, R. J., Waters, C., and Willman, M. Wed . "The Foundation Supernova Survey: Measuring Cosmological Parameters with Supernovae from a Single Telescope". United States. doi:10.3847/1538-4357/ab2bec. https://www.osti.gov/servlets/purl/1593851.
@article{osti_1593851,
title = {The Foundation Supernova Survey: Measuring Cosmological Parameters with Supernovae from a Single Telescope},
author = {Jones, D. O. and Scolnic, D. M. and Foley, R. J. and Rest, A. and Kessler, R. and Challis, P. M. and Chambers, K. C. and Coulter, D. A. and Dettman, K. G. and Foley, M. M. and Huber, M. E. and Jha, S. W. and Johnson, E. and Kilpatrick, C. D. and Kirshner, R. P. and Manuel, J. and Narayan, G. and Pan, Y. -C. and Riess, A. G. and Schultz, A. S. B. and Siebert, M. R. and Berger, E. and Chornock, R. and Flewelling, H. and Magnier, E. A. and Smartt, S. J. and Smith, K. W. and Wainscoat, R. J. and Waters, C. and Willman, M.},
abstractNote = {Measurements of the dark energy equation-of-state parameter, w, have been limited by uncertaintyin the selection effects and photometric calibration of $z <0.1$ Type Ia supernovae (SNe Ia). The Foundation Supernova Survey is designed to lower these uncertainties by creating a new sample of $z < 0.1$ SNe Ia observed on the Pan-STARRS system. Here, we combine the Foundation sample with SNe from the Pan-STRRS Medium Deep Survey and measure cosmological parameters with 1,338 SNe from a single telescope and a single, well-calibrated photometric system. For the firsttime, both the low-z and high-z data are predominantly discovered by surveys that do not target pre-selected galaxies, reducing selection bias uncertainties. The $z > 0.1$ data include 875 SNe without spectroscopic classifications and we show that we can robustly marginalize over CC SN contamination. We measure Foundation Hubble residuals to be fainter than the pre-existing low-z Hubble residualsby 0.046±0.027 mag (stat+sys). By combining the SN Ia data with cosmic microwave backgroundconstraints, we find w = -0.938±0.053, consistent with $Λ$CDM. With 463 spectroscopically classified SNe Ia alone, we measure w = -0.933±0.061. Using the more homogeneous and better-characterized Foundation sample gives a 55% reduction in the systematic uncertainty attributed to SN Ia sampleselection biases. Although use of just a single photometric system at low and high redshift increases the impact of photometric calibration uncertainties in this analysis, previous low-z samples may have correlated calibration uncertainties that were neglected in past studies. The full Foundation sample will observe up to 800 SNe to anchor the LSST and WFIRST Hubble diagrams.},
doi = {10.3847/1538-4357/ab2bec},
journal = {The Astrophysical Journal (Online)},
number = [1],
volume = [881],
place = {United States},
year = {2019},
month = {8}
}

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