Broad Baseline Flux Distribution of Planetary Nuclei
نویسندگان
چکیده
منابع مشابه
The Cosmological Signatures and Flux Distribution of Gamma-Ray Bursts with a Broad Luminosity Distribution
The cosmological expansion cannot produce the reported correlations of the gamma-ray burst timescale and spectral energy with peak flux if the burst model reproduces the BATSE 3B peak-flux distribution for a non-evolving burst source density. The required ratios of time dilation and redshift factors are only produced by monoluminous models at peak fluxes below the BATSE threshold, and they are ...
متن کاملBroad Iron Lines in Active Galactic Nuclei
An intrinsically narrow line emitted by an accretion disk around a black hole appears broadened and skewed as a result of the Doppler effect and gravitational redshift. The fluorescent iron line in the X-ray band at 6.4 – 6.9 keV is the strongest such line and is seen in the X-ray spectrum of many active galactic nuclei and, in particular, Seyfert galaxies. It is an important diagnostic with wh...
متن کاملDynamics of the Sharp Edges of Broad Planetary Rings
The following describes a model of a broad planetary ring whose sharp edge is confined by a satellite’s m Lindblad resonance (LR). This model uses the streamline formalism of Borderies et al. (1982, 1985) to calculate the ring’s internal forces, namely, ring gravity, pressure, and viscosity. The model also allows for the possibility of a drag force that can affect small ring particles directly,...
متن کاملReverberation Mapping of Broad Line Regions in Actvie Galactic Nuclei
The time-delay between the emission-line variations and the continuum variations of a quasar or Seyfert galaxy can be used to estimate the distance between the broad line regions (BLRs) and the central source, and this technique is called the emission-line reverberation mapping (RM). Based on the RM observation, a relationship between the size of BLRs (RBLR) and the luminosity of AGNs can be es...
متن کاملParton distribution functions in nuclei
Optimum nuclear parton distributions are determined by an analysis of muon and electron deep inelastic scattering data. Assuming simple A dependence and polynomial functions of x and 1−x for nuclear modification of parton distributions, we determine the initial distributions by a χ 2 analysis. Although valence-quark distributions are relatively well determined except for the small-x region, ant...
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: Symposium - International Astronomical Union
سال: 1989
ISSN: 0074-1809
DOI: 10.1017/s0074180900138562