Direct determination of the hubble parameter using type IIn supernovae
نویسندگان
چکیده
منابع مشابه
DETERMINATION OF THE HUBBLE CONSTANT USING A TWO-PARAMETER LUMINOSITY CORRECTION FOR TYPE Ia SUPERNOVAE
In this paper, we make a comprehensive determination of the Hubble constant H0 by using two parameters—the B − V color and the rate of decline ∆m15—to simultaneously standardize the luminosities of all nearby Cepheid-calibrated type Ia supernovae (SNe Ia) and those of a larger, more distant sample of 29 SNe Ia. Each group is treated in as similar a manner as possible in order to avoid systemati...
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Type IIn supernovae (SNe IIn) dominate the brightest supernova events in observed FUV flux (∼1200 − 2000Å). We show that multi-band, multi-epoch optical surveys complete to mr = 27 can detect the FUV emission of ∼25 z > 2 SNe IIn deg yr rest-frame (∼10 SNe IIn deg yr observed-frame) to 4σ using a technique monitoring color-selected galaxies. Moreover, the strength and evolution of the bright em...
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The focus of this review is the work that has been done during the 1990s on using Type Ia supernovae (SNe Ia) to measure the Hubble constant (H0). SNe Ia are well suited for measuring H0. A straightforward maximum–light color criterion can weed out the minority of observed events that are either intrinsically subluminous or substantially extinguished by dust, leaving a majority subsample that h...
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Near-Infrared (NIR) observations are presented for five Type IIn supernovae (SN 1995N, SN 1997ab, SN 1998S, SN 1999Z, and SN 1999el) that exhibit strong infrared excesses at late times (t & 100 d). H and K -band emission from these objects is dominated by a continuum that rises toward longer wavelengths. The data are interpreted as thermal emission from dust, probably situated in a pre-existing...
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The source of the large amounts of dust observed in high redshift galaxies has remained uncertain for nearly 40 years. Despite the success of models in producing dust within supernova explosions, only a handful of supernovae show direct observational evidence for dust condensation, and these examples all yield 2-3 orders of magnitude less dust than predicted by the models. Recent observations s...
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ژورنال
عنوان ژورنال: JETP Letters
سال: 2012
ISSN: 0021-3640,1090-6487
DOI: 10.1134/s0021364012150039