منابع مشابه
ASTRONOMY AND ASTROPHYSICS Epochs of Maximum Light and Bolometric Light Curves of Type Ia Supernovae
We present empirical fits to the UBVRI light curves of type Ia supernovae. These fits are used to objectively evaluate light curve parameters. We find that the relative times of maximum light in the filter passbands are very similar for most objects. Surprisingly the maximum at longer wavelengths is reached earlier than in the B and V light curves. This clearly demonstrates the complicated natu...
متن کاملAstronomy and Astrophysics Do We Really See a Cosmological Constant in the Supernovae Data ?
The magnitude-redshift relation is one of the tools for a direct observational approach to cosmology. The discovery of high redshift Type Ia supernovae (SNIa) and their use as " standard candles " has resurrected interest in this approach. Recently collected data have been used to address the problem of measuring the cosmologi-cal parameters of the universe. Analysed in the framework of homogen...
متن کاملSUPERNOVAE AS THE SITE OF THE r-PROCESS: IMPLICATIONS FOR GAMMA-RAY ASTRONOMY
We discuss how detection of gamma-ray emission from the decay of r-process nuclei can improve our understanding of r-process nucleosynthesis. We Ðnd that a gamma-ray detector with a sensitivity of D10~7c cm~2 s~1 at keV may detect the emission from the decay of 125Sb, 137Cs, 144Ce, Ec B 100È700 155Eu, and 194Os produced in a future Galactic supernova. In addition, such a detector may determine ...
متن کاملRadio Supernovae Radio Supernovae
In this article I will briefly review the current status of radio observations of nearby supernovae and their remnants. This review will initially address observations of the radio light curves of nearby core-collapse supernovae, followed by a more detailed summary of recent Very Long Baseline Interferometric observations of the expansion of nearby supernovae and their remnants. These later sec...
متن کاملPopular astronomy.
The Springer-Praxis Popular Astronomy programme covers the latest observations, techniques and discoveries in astronomy, astrophysics and cosmology, selecting key topics designed to fire the imagination of keen astronomers everywhere. Many of the topics selected for titles in this programme are refreshingly new, and away from the accepted mainstream of titles published in this area. Topics inc...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1978
ISSN: 0028-0836,1476-4687
DOI: 10.1038/274828a0