Near-infrared light curves of type Ia supernovae
نویسندگان
چکیده
منابع مشابه
Near-Infrared Properties of Type Ia Supernovae
The photometric properties of Type Ia supernovae (SNe Ia) in the near-infrared as garnered from observations made over the last 30 years are reviewed. During this period, light curves for more than 120 nearby SNe Ia have been published, revealing considerable homogeneity but also some fascinating differences. These data have confirmed that, for all but the fastest declining objects, SNe Ia are ...
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We extend earlier efforts to determine whether the late (t≥60d) light-curves of type Ia SNe are better explained by the escape of positrons from the ejecta or by the complete deposition of positron kinetic energy in a trapping magnetic field. We refine our selection of Ia SNe, using those that have extensive BVRI pho-tometry 35 days or more after maximum light. Assuming all SNe within a given ∆...
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From observations of 7 Type Ia supernovae obtained during the last four years at the Las Campanas and Cerro Tololo Inter-American Observatories, along with previous published data for 9 supernovae, we present JHK Hubble diagrams and derive absolute magnitudes at maximum light of 16 objects out to a redshift of 0.038. On the scale of H0 = 72 km s −1 Mpc we find mean absolute magnitudes at maximu...
متن کاملLate Light Curves of Normal Type Ia Supernovae
We present late-epoch optical photometry (BVRI) of seven normal/superluminous Type Ia supernovae: SN 2000E, SN 2000ce, SN 2000cx, SN 2001C, SN 2001V, SN 2001bg, SN 2001dp. The photometry of these objects was obtained using a template subtraction method to eliminate galaxy light contamination during aperture photometry. We show the optical light curves of these supernovae out to epochs of up to ...
متن کاملLight curves of five type Ia supernovae at intermediate redshift
Aims. We present multi-band light curves and distances for five type Ia supernovae at intermediate redshifts, 0.18 < z < 0.27. Methods. Three telescopes on the Canary Island of La Palma, INT, NOT and JKT, were used for discovery and follow-up of type Ia supernovae in the g and r filters. Supernova fluxes were measured by simultaneously fitting a supernova and host galaxy model to the data, and ...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2012
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201117271