Wendy L. Freedman

John & Marion Sullivan University Professor of Astronomy & Astrophysics, Department of Astronomy and Astrophysics

Ph.D. in Astronomy, University of Toronto, 1984
 
Contact Information
Phone: (773) 834-5651
Location: ERC 535
Email: wfreedmanuchicago.edu
 
Research
Observational cosmology, Hubble constant, dark energy, extragalactic distance scale, supernovae, Cepheids, galaxy evolution, initial mass function.

Ongoing Scientific Projects:
 
Students
GRADUATE STUDENTS

 
Currently in Committees
  • Wednesday Colloquium committee
  • Strategic Policy Team (SPT)

 
KICP Publications
2019 | 2018 | 2017 | 2016


Latest Journal Publications
  1. "New near-infrared JHKs light-curve templates for RR Lyrae variables", Astronomy & Astrophysics, Volume 625, id.A1, 19 pp (May 2019)
  2. "Gravity and Light: Combining Gravitational Wave and Electromagnetic Observations in the 2020s", arXiv:1903.04553 (Mar 2019)
  3. "VizieR Online Data Catalog: The NIR tip of RGB. I. JHK photometry of IC1613 (Madore+, 2018)", VizieR On-line Data Catalog: J/ApJ/858/11. Originally published in: 2018ApJ...858...11M (Mar 2019)
  4. "VizieR Online Data Catalog: RR Lyrae variables NIR light-curve templates (Braga+, 2019)", VizieR On-line Data Catalog: J/A+A/625/A1. Originally published in: 2019A&A...625A...1B (Mar 2019)
  5. "On a New Method to Estimate the Distance, Reddening, and Metallicity of RR Lyrae Stars Using Optical/Near-infrared (B, V, I, J, H, K) Mean Magnitudes: ω Centauri as a First Test Case", The Astrophysical Journal, Volume 870, Issue 2, article id. 115, 21 pp. (2019) (Jan 2019)
  6. "Carnegie Supernova Project-II: Extending the Near-infrared Hubble Diagram for Type Ia Supernovae to z ˜ 0.1", Publications of the Astronomical Society of the Pacific, Volume 131, Issue 995, pp. 014001 (2019) (Jan 2019)
  7. "Carnegie Supernova Project-II: The Near-infrared Spectroscopy Program", Publications of the Astronomical Society of the Pacific, Volume 131, Issue 995, pp. 014002 (2019) (Jan 2019)
  8. "LIGO/Virgo S190425z: Further confirmation for the classification of PS19qp/AT 2019ebq as a supernova.", GRB Coordinates Network, Circular Service, No. 24295, #1 (2019/April-0) (n/a 2019)
  9. "The Carnegie Supernova Project: Absolute Calibration and the Hubble Constant", The Astrophysical Journal, Volume 869, Issue 1, article id. 56, 23 pp. (2018) (Dec 2018)
  10. "The Carnegie-Chicago Hubble Program: Calibration of the Near-infrared RR Lyrae Period-Luminosity Relation with HST", The Astrophysical Journal, Volume 869, Issue 1, article id. 82, 8 pp. (2018) (Dec 2018)
  11. "New Near-Infrared $JHK_s$ light-curve templates for RR Lyrae variables", arXiv:1812.06372 (Dec 2018)
  12. "The Carnegie RR Lyrae Program: mid-infrared period-luminosity relations of RR Lyrae stars in Reticulum", Monthly Notices of the Royal Astronomical Society, Volume 480, Issue 3, p.4138-4153 (Nov 2018)
  13. "SMHASH: a new mid-infrared RR Lyrae distance determination for the Local Group dwarf spheroidal galaxy Sculptor", Monthly Notices of the Royal Astronomical Society, Volume 481, Issue 1, p.578-595 (Nov 2018)
  14. "VizieR Online Data Catalog: RRLs in globulars. V.ω Centauri NIR photometry (Braga+, 2018)", VizieR On-line Data Catalog: J/AJ/155/137. Originally published in: 2018AJ....155..137B (Nov 2018)
  15. "An Independent Determination of the Hubble Constant", HST Proposal. Cycle 26, ID. #15642 (Nov 2018)
  16. "The Carnegie-Chicago Hubble Program. V. The Distances to NGC 1448 and NGC 1316 via the Tip of the Red Giant Branch", The Astrophysical Journal, Volume 866, Issue 2, article id. 145, 9 pp. (2018) (Oct 2018)
  17. "SMHASH: anatomy of the Orphan Stream using RR Lyrae stars", Monthly Notices of the Royal Astronomical Society, Volume 479, Issue 1, p.570-587 (Sep 2018)
  18. "VizieR Online Data Catalog: The CSP (DR3): photometry of low-z SNe Ia (Krisciunas+, 2017)", VizieR On-line Data Catalog: J/AJ/154/211. Originally published in: 2017AJ....154..211K (Aug 2018)
  19. "The Carnegie-Chicago Hubble Program. IV. The Distance to NGC 4424, NGC 4526, and NGC 4356 via the Tip of the Red Giant Branch", The Astrophysical Journal, Volume 861, Issue 2, article id. 104, 10 pp. (2018) (Jul 2018)
  20. "The Near-infrared Tip of the Red Giant Branch. I. A Calibration in the Isolated Dwarf Galaxy IC 1613", The Astrophysical Journal, Volume 858, Issue 1, article id. 11, 10 pp. (2018) (May 2018)

Latest Conference Proceedings
  1. "Multiwavelength Gaia DR2 Calibration of the RR Lyrae Period-Luminosity-Metallicity Relation", American Astronomical Society, AAS Meeting #233, id.#373.02 (Jan 2019)
  2. "Multiwavelength Gaia DR2 Calibration of the RR Lyrae Period-Luminosity-Metallicity Relation", American Astronomical Society, AAS Meeting #233, id.373.02 (Jan 2019)
  3. "Metallicity-Corrected Tip of the Red Giant Branch Distances to M66 and M96", American Astronomical Society, AAS Meeting #232, id. 319.03 (Jun 2018)
  4. "Increasing Accuracy and Increasing Tension in Ho", American Astronomical Society, AAS Meeting #229, id.234.01 (Jan 2017)
  5. "Star Formation as a Function of Neutral Hydrogen Gas Density in Local Group Galaxies", American Astronomical Society, AAS Meeting #228, id.319.04 (Jun 2016)
  6. "Accepted Facts in Observational Cosmology", American Astronomical Society, AAS Meeting #228, id.204.01 (Jun 2016)
  7. "The Next Generation of Optical Telescopes", APS April Meeting 2016, abstract id. Y7.001 (Mar 2016)