A 3% SOLUTION: DETERMINATION OF THE HUBBLE CONSTANT WITH THE HUBBLE SPACE TELESCOPE AND WIDE FIELD CAMERA 3
Space Telescope Science Institute · Johns Hopkins University · +10 more institutions
Abstract
We use the Wide Field Camera 3 (WFC3) on the Hubble Space Telescope to determine the Hubble constant (H0) from optical and infrared observations of over 600 Cepheid variables in the host galaxies of 8 recent Type Ia supernovae (SNe Ia), providing the calibration for a mag-z relation of 253 SNe Ia. Increased precision over past measurements comes from: (1) more than doubling the number of infrared observations of Cepheids in nearby SN hosts; (2) increasing the sample of ideal SN Ia calibrators from six to eight; (3) increasing by 20% the number of Cepheids with infrared observations in the megamaser host NGC 4258; (4) reducing the difference in the mean metallicity of the Cepheid comparison samples from Δlog…
Citation impact
- FWCI
- 127.70
- Percentile
- 100%
- References
- 92
Authors
9- AGAdam G. RiessCorresponding
Space Telescope Science Institute, Johns Hopkins University, Johns Hopkins Medicine, Université Bourgogne Franche-Comté, University of Baltimore
- LMLucas M. Macri
Mitchell Institute, Texas A&M University
- SCStefano Casertano
Space Telescope Science Institute, Université Bourgogne Franche-Comté
- HLHubert Lampeitl
University of Portsmouth
- HCHenry C. Ferguson
Space Telescope Science Institute, Université Bourgogne Franche-Comté
Topics & keywords
- Hubble Ultra-Deep Field
- Hubble Deep Field
- Hubble space telescope
- Physics
- Hubble's law
- Hubble Deep Field South
- Astronomy
- Space (punctuation)