The Discovery of the Most Distant Known Type Ia Supernova at Redshift 1.914
Author
Jones, David O.
Rodney, Steven A.
Riess, Adam G.
Mobasher, Bahram
Dahlen, Tomas
McCully, Curtis
Frederiksen, Teddy F.
Casertano, Stefano
Hjorth, Jens
Keeton, Charles R.
Koekemoer, Anton
Strolger, Louis-Gregory
Wiklind, Tommy G.
Challis, Peter
Graur, Or
Hayden, Brian
Patel, Brandon
Weiner, Benjamin J.
Filippenko, Alexei V.
Garnavich, Peter
Jha, Saurabh W.
Kirshner, Robert P.
Ferguson, Henry C.
Grogin, Norman A.
Kocevski, Dale
Published Version
https://doi.org/10.1088/0004-637X/768/2/166Metadata
Show full item recordCitation
Jones, David O., Steven A. Rodney, Adam G. Riess, Bahram Mobasher, Tomas Dahlen, Curtis McCully, Teddy F. Frederiksen, et al. 2013. “THE DISCOVERY OF THE MOST DISTANT KNOWN TYPE Ia SUPERNOVA AT REDSHIFT 1.914.” The Astrophysical Journal 768 (2): 166. https://doi.org/10.1088/0004-637x/768/2/166.Abstract
We present the discovery of a Type Ia supernova (SN) at redshift z = 1.914 from the CANDELS multi-cycle treasury program on the Hubble Space Telescope (HST). This SN was discovered in the infrared using the Wide-Field Camera 3, and it is the highest-redshift Type Ia SN yet observed. We classify this object as a SN Ia by comparing its light curve and spectrum with those of a large sample of Type Ia and core-collapse SNe. Its apparent magnitude is consistent with that expected from the Lambda CDM concordance cosmology. We discuss the use of spectral evidence for classification of z > 1.5 SNe Ia using HST grism simulations, finding that spectral data alone can frequently rule out SNe II, but distinguishing between SNe Ia and SNe Ib/c can require prohibitively long exposures. In such cases, a quantitative analysis of the light curve may be necessary for classification. Our photometric and spectroscopic classification methods can aid the determination of SN rates and cosmological parameters from the full high-redshift CANDELS SN sample.Terms of Use
This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAACitable link to this page
http://nrs.harvard.edu/urn-3:HUL.InstRepos:41399805
Collections
- FAS Scholarly Articles [18172]
Contact administrator regarding this item (to report mistakes or request changes)