The DOI matches its Crossref record; 11 of the 11 references it cites were found in a registry or an index.
SPECTRA AND HUBBLE SPACE TELESCOPE LIGHT CURVES OF SIX TYPE Ia SUPERNOVAE AT 0.511 <z< 1.12 AND THE UNION2 COMPILATION
Open accessAbstract
We report on work to increase the number of well-measured Type Ia supernovae (SNe Ia) at high redshifts. Light curves, including high signal-to-noise Hubble Space Telescope data, and spectra of six SNe Ia that were discovered during 2001, are presented. Additionally, for the two SNe with z > 1, we present ground-based J -band photometry from Gemini and the Very Large Telescope. These are among the most distant SNe Ia for which ground-based near-IR observations have been obtained. We add these six SNe Ia together with other data sets that have recently become available in the literature to the Union compilation. We have made a number of refinements to the Union analysis chain, the most important ones being the refitting of all light curves with the SALT2 fitter and an improved handling of systematic errors. We call this new compilation, consisting of 557 SNe, the Union2 compilation. The flat concordance ΛCDM model remains an excellent fit to the Union2 data with the best-fit constant equation-of-state parameter w = −0.997 +0.050 −0.054 (stat) +0.077 −0.082 (stat + sys together) for a flat universe, or w = −1.038 +0.056 −0.059 (stat) +0.093 −0.097 (stat + sys together) with curvature. We also present improved constraints on w ( z ). While no significant change in w with redshift is detected, there is still considerable room for evolution in w . The strength of the constraints depends strongly on redshift. In particular, at z ≳ 1, the existence and nature of dark energy are only weakly constrained by the data.
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Citations
Cites
Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
Riess, A. G., Filippenko, A. V., Challis, P., Clocchiatti, A., Diercks, A., Garnavich, P. M., Gilliland, R. L., Hogan, C. J., Jha, S., Kirshner, R. P., et al. (1998) · The Astronomical Journal · doi:10.1086/300499 · Cited by 19,704
Measurements of Ω and Λ from 42 High‐Redshift Supernovae
Perlmutter, S., Aldering, G., Goldhaber, G., Knop, R. A., Nugent, P., Castro, P. G., Deustua, S., Fabbro, S., Goobar, A., Groom, D. E., et al. (1999) · The Astrophysical Journal · doi:10.1086/307221 · Cited by 18,062
Self-citationSchlegel, D. J., Finkbeiner, D. P., & Davis, M. (1998) · The Astrophysical Journal · doi:10.1086/305772 · Cited by 15,126
Riess, A. G., Strolger, L., Tonry, J., Casertano, S., Ferguson, H. C., Mobasher, B., Challis, P., Filippenko, A. V., Jha, S., Li, W., et al. (2004) · The Astrophysical Journal · doi:10.1086/383612 · Cited by 4,315 · cited 1×
“…follow-up of SNe discovered from the ground (Knop et al. 2003; Tonry et al. 2003; Barris et al. 2004; Nobili et al. 2009), and, by using the Advanced Camera for Surveys (ACS), to carry out both search and follow-up from space (Riess et al. 2004, 2007; Kuznetsova et al. 2008; Dawson et al. 2009).”
MethodThe Sloan Digital Sky Survey Photometric System
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“However, the SDSS filter system (Fukugita et al. 1996) differs significantly from the filters used in this search except for the SuprimeCam i band.”
MethodInfluentialSelf-citationExploring the Expansion History of the Universe
Linder, E. V. (2003) · Physical Review Letters · doi:10.1103/physrevlett.90.091301 · Cited by 2,526
Self-citationThe absolute magnitudes of Type IA supernovae
Phillips, M. M. (1993) · The Astrophysical Journal · doi:10.1086/186970 · Cited by 2,111
Baryon acoustic oscillations in the Sloan Digital Sky Survey Data Release 7 galaxy sample
Percival, W. J., Reid, B. A., Eisenstein, D. J., Bahcall, N. A., Budavari, T., Frieman, J. A., Fukugita, M., Gunn, J. E., Ivezić, Ž., Knapp, G. R., et al. (2010) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2009.15812.x · Cited by 1,846 · cited 1×
“Percival et al. (2010) measures the position of the BAO peak from the SDSS DR7 and 2dFGRS data, constraining dz ≡ rs(zd)/DV (0.275) to 0.1390 ± 0.0037, where rz(zd) is the comoving sound horizon and DV (z) ≡ [ (1 + z)2D2Acz/H(z) ]1/3 .”
MethodInfluentialRiess, A. G., Strolger, L., Casertano, S., Ferguson, H. C., Mobasher, B., Gold, B., Challis, P. J., Filippenko, A. V., Jha, S., Li, W., et al. (2007) · The Astrophysical Journal · doi:10.1086/510378 · Cited by 1,758 · cited 9×
“Revised HST zero-points and filter curves Since Riess et al. (2007), the reported zero-points of both NICMOS and ACS were revised.”
BackgroundMethodInfluentialThe Palomar Transient Factory: System Overview, Performance, and First Results
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“The Katzman Automatic Imaging Telescope (Filippenko et al. 2001), the Nearby Supernova Factory (Copin et al. 2006), the Center for Astrophysics SN group (Hicken et al. 2009a), the Carnegie Supernova Project (Hamuy et al. 2006; Folatelli et al. 2010), and the Palomar Transient Factory (Law et al. 2009) are conducting s…”
BackgroundInfluentialSelf-citation
Cited by
Bamba, K., Capozziello, S., Nojiri, S., & Odintsov, S. D. (2012) · Astrophysics and Space Science · doi:10.1007/s10509-012-1181-8 · Cited by 2,387
Beyond the cosmological standard model
Joyce, A., Jain, B., Khoury, J., & Trodden, M. (2015) · Physics Reports · doi:10.1016/j.physrep.2014.12.002 · Cited by 1,231
Tully, R. B., Courtois, H. M., & Sorce, J. G. (2016) · The Astronomical Journal · doi:10.3847/0004-6256/152/2/50 · Cited by 513
Metadata
- Authors
- Amanullah, R., Lidman, C., Rubin, D., Aldering, G., Astier, P., Barbary, K., Burns, M. S., Conley, A., Dawson, K. S., Deustua, S. E., Doi, M., Fabbro, S., Faccioli, L., Fakhouri, H. K., Folatelli, G., Fruchter, A. S., Furusawa, H., Garavini, G., Goldhaber, G., Goobar, A., Groom, D. E., Hook, I., Howell, D. A., Kashikawa, N., Kim, A. G., Knop, R. A., Kowalski, M., Linder, E., Meyers, J., Morokuma, T., Nobili, S., Nordin, J., Nugent, P. E., Östman, L., Pain, R., Panagia, N., Perlmutter, S., Raux, J., Ruiz-Lapuente, P., Spadafora, A. L., Strovink, M., Suzuki, N., Wang, L., Wood-Vasey, W. M., Yasuda, N., & The Supernova Cosmology Project
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2010-05-21
- Volume
- 716
- Issue
- 1
- Pages
- 712-738
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2596716325
- Cited by
- 1,352
- References
- 11
- FWCI
- 107.22
- Type
- journal article
- Language
- en
- Open access
- bronze
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- CoChat. (2026). Citation check: SPECTRA AND HUBBLE SPACE TELESCOPE LIGHT CURVES OF SIX TYPE Ia SUPERNOVAE AT 0.511 <z< 1.12 AND THE UNION2 COMPILATION. https://app.cochat.ai/papers/10.1088/0004-637x/716/1/712
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- Amanullah, R., Lidman, C., Rubin, D., Aldering, G., Astier, P., Barbary, K., Burns, M. S., Conley, A., Dawson, K. S., Deustua, S. E., Doi, M., Fabbro, S., Faccioli, L., Fakhouri, H. K., Folatelli, G., Fruchter, A. S., Furusawa, H., Garavini, G., Goldhaber, G., . . . The Supernova Cosmology Project. (2010). SPECTRA AND HUBBLE SPACE TELESCOPE LIGHT CURVES OF SIX TYPE Ia SUPERNOVAE AT 0.511 <z< 1.12 AND THE UNION2 COMPILATION. The Astrophysical Journal. https://doi.org/10.1088/0004-637x/716/1/712
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