| Full text | |
| Author(s): Show less - |
Riess, Adam G.
[1, 2]
;
Rodney, Steven A.
[3]
;
Scolnic, Daniel M.
;
Shafer, Daniel L.
[2, 4]
;
Strolger, Louis-Gregory
[1]
;
Ferguson, Henry C.
[1]
;
Postman, Marc
[1]
;
Graur, Or
[5, 6]
;
Maoz, Dan
[7]
;
Jha, Saurabh W.
[8]
;
Mobasher, Bahram
[9]
;
Casertano, Stefano
[1]
;
Hayden, Brian
[10, 11]
;
Molino, Alberto
[12]
;
Hjorth, Jens
[13]
;
Garnavich, Peter M.
[14]
;
Jones, David O.
[2]
;
Kirshner, Robert P.
[5]
;
Koekemoer, Anton M.
[1]
;
Grogin, Norman A.
[1]
;
Brammer, Gabriel
[1]
;
Hemmati, Shoubaneh
[15]
;
Dickinson, Mark
[16]
;
Challis, Peter M.
[5]
;
Wolff, Schuyler
[2]
;
Clubb, Kelsey I.
[17]
;
Filippenko, Alexei V.
[17, 18]
;
Nayyeri, Hooshang
[19]
;
Vivian, U.
[19]
;
Koo, David C.
[20]
;
Faber, Sandra M.
[20]
;
Kocevski, Dale
[21]
;
Bradley, Larry
[1]
;
Coe, Dan
[1]
Total Authors: 34
|
| Affiliation: Show less - | [1] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 - USA
[2] Johns Hopkins Univ, Dept Phys & Astron, 3400 North Charles St, Baltimore, MD 21218 - USA
[3] Univ South Carolina, Dept Phys & Astron, 712 Main St, Columbia, SC 29208 - USA
[4] Univ Chicago, Kavli Inst Cosmol Phys, 5640 South Ellis Ave, Chicago, IL 60637 - USA
[5] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 - USA
[6] Amer Museum Nat Hist, Dept Astrophys, Cent Pk West & 79th St, New York, NY 10024 - USA
[7] Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv - Israel
[8] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 - USA
[9] Univ Calif Riverside, Dept Phys & Astron, 900 Univ Ave, Riverside, CA 92521 - USA
[10] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 - USA
[11] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 - USA
[12] Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, BR-05508090 Sao Paulo - Brazil
[13] Univ Copenhagen, Niels Bohr Inst, Dark Cosmol Ctr, Juliane Maries Vej 30, DK-2100 Copenhagen - Denmark
[14] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 - USA
[15] CALTECH, Infrared Proc & Anal Ctr, Pasadena, CA 91125 - USA
[16] Natl Opt Astron Observ, 950 North Cherry Ave, Tucson, AZ 85719 - USA
[17] Univ Calif Berkeley, Dept Astron, 601 Campbell Hall, Berkeley, CA 94720 - USA
[18] Univ Calif Berkeley, Miller Inst Basic Res Sci, Berkeley, CA 94720 - USA
[19] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 - USA
[20] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 - USA
[21] Colby Coll, 4000 Mayflower Hill Dr, Waterville, ME 04901 - USA
Total Affiliations: 21
|
| Document type: | Journal article |
| Source: | ASTROPHYSICAL JOURNAL; v. 853, n. 2 FEB 1 2018. |
| Web of Science Citations: | 38 |
| Abstract | |
We present an analysis of 15 Type Ia supernovae (SNe Ia) at redshift z > 1 (9 at 1.5 < z < 2.3) recently discovered in the CANDELS and CLASH Multi-Cycle Treasury programs using WFC3 on the Hubble Space Telescope. We combine these SNe. Ia with a new compilation of similar to 1050 SNe Ia, jointly calibrated and corrected for simulated survey biases to produce accurate distance measurements. We present unbiased constraints on the expansion rate at six redshifts in the range 0.07 < z < 1.5 based only on this combined SN Ia sample. The added leverage of our new sample at z > 1.5 leads to a factor of similar to 3 improvement in the determination of the expansion rate at z = 1.5, reducing its uncertainty to similar to 20%, a measurement of H(z = 1.5)/H-0 = 2.69(-0.52)(+0.86). We then demonstrate that these six derived expansion rate measurements alone provide a nearly identical characterization of dark energy as the full SN sample, making them an efficient compression of the SN Ia data. The new sample of SNe Ia at z > 1.5 usefully distinguishes between alternative cosmological models and unmodeled evolution of the SN Ia distance indicators, placing empirical limits on the latter. Finally, employing a realistic simulation of a potential Wide-Field Infrared Survey Telescope SN survey observing strategy, we forecast optimistic future constraints on the expansion rate from SNe Ia. (AU) | |
| FAPESP's process: | 14/11806-9 - Challenges for the new generation of wide-field photometric redshift surveys like J-PAS |
| Grantee: | Alberto Molino Benito |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |