Infrared light curves of type Ia supernovae
| Autor: | Phillips, MM, Krisciunas, K, Suntzeff, NB, Roth, M, Germany, L, Candia, P, Gonzalez, S, Hamuy, M, Freedman, WL, Persson, SE, Nugent, PE, Aldering, G, Conley, A |
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| Rok vydání: | 2003 |
| Předmět: | |
| Zdroj: | Phillips, MM; Krisciunas, K; Suntzeff, NB; Roth, M; Germany, L; Candia, P; et al.(2003). Infrared light curves of type Ia supernovae. FROM TWILIGHT TO HIGHLIGHT: THE PHYSICS OF SUPERNOVAE, 193-199. doi: 10.1007/10828549_25. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/8mk6t96r |
| DOI: | 10.1007/10828549_25. |
| Popis: | This paper provides a progress report on a collaborative program at the Las Campanas and Cerro Tololo Observatories to observe the near-IR light curves of Type Ia supernovae. We discuss how the morphologies of the JHK light curves change as a function of the decline rate. Evidence is presented which indicates that the absolute magnitudes in the H band have little or no dependence on the decline rate, suggesting that SNe Ia may be nearly perfect cosmological standard candles in the near-IR. A preliminary Hubble diagram in the H band is presented and compared with a similar diagram in V for the same objects. Finally, observations of two peculiar supernovae, 1999ac and 2001ay, are briefly discussed. 6 pages, 5 figures, to appear in Proc. "From Twilight to Highlight - The Physics of Supernovae" ESO/MPA/MPE Workshop, Garching, July 29 - 31 |
| Databáze: | OpenAIRE |
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