[PDF] Top 20 A EMISSION LINE IN

... The accuracy of the V/R evaluation is determined by the S/N ratio and the accuracy of drawing the local continuum. It depends further on the definition of the line wing profiles and on the underlying photospheric ... See full document

... in various emission lines. The active region AR10923 was nearly simultaneously observed by the both space born in- struments in November 2006. Here are HeI and HeII lines of chromospheric or lower ... See full document

... the line fit essentially ...when line features are spectrally coincident with sky ...broad line and relatively high resolution - a scenario in which the uncertainties on line re- coverability ... See full document

... unique emission line for measuring both parameters allows a more ef- ficient use of the optical spectrum, which is an important factor for sensor multiplexing using wavelength division multiplexer (WDM) ... See full document

... Binary evolution tells us that the majority of the current CV population should have evolved towards short orbital periods with the mass donor star depleted to a low mass degenerate brown dwarf (e.g. Knigge 2006, Kolb ... See full document

... e emission lines take longer (hundreds of years) to decay, effectively ’holding o n ’ until th e next star passes near th e MBH and th e cycle ...broad line region is tho u g ht to be powered by th e UV ... See full document

... In active galactic nuclei (AGN), the primary physical mechanism for the excitation of the broad emission line regions (BELR) is photoionization by the underlying broad-band continuum (e.g. Osterbrock & ... See full document

... Systems of this last type present an attractive possibility to determine a full set of parameters (i.e., masses, inclination, bi- nary separation), since measuring the gravitational redshift from the H α component on the ... See full document

... rial has the correct velocity to be in Keplerian rotation at the circularization radius. However, it is more problematic to explain why different sections of any enhanced ring of material at this radius would be picked ... See full document

... the emission line variability amplitude, relative to the observed continuum variations, is also signi fi cantly ...UV emission lines ( Section ...the line-emitting gas, as inferred by the ... See full document

... :The radial velocity curve of HR1273:The power spectrum of the combined data of HR1273.. :The residuals from the basic velocity curve of HR1273:The radial velocities of HR1713 plotted ag[r] ... See full document

... The purposes of our survey were {a to begin monitoring this sample of southern, active-chromosphere objects in a manner similar to that employed by several earlier northern radio surveys[r] ... See full document

... We believe that there is no justification for the classification of AG Car and its associated ring nebula (of diameter some W) as a planetary nebula. All of the other objects plotted [r] ... See full document

... important since this will contribute only 14% error to the logarithmic reddening constant or 12% in terms of E(B-V). A more serious correction in the present context is the influence of the [Call] line on the ... See full document

... Of specific relevance to our study are ionized outflows that have been known for several decades to be identifiable using broad and asymmetric emission-line profiles (e.g. Weedman 1970; Stockton 1976; ... See full document

... white dwarf. However, the secondary star in GK Vir receives a much larger irradiating flux to that in SDSS J1212-0123 due to the higher temperature of the white dwarf, therefore a larger number of lines are present and ... See full document

... 3C 459 is identified with a 17.55 V magnitude N-galaxy at a red- shift of 0.2199 (Spinrad et al. 1985; Eracleous & Halpern 1994) and is classified as a narrow-line radio galaxy (Tadhunter et al. 1993), albeit ... See full document

... These programs were designed to meet the criteria de- scribed by Horne et al. (2004) to enable recovery of velocity–delay maps. They were carried out at MDM and partner observatories in 2005 (Bentz et al. 2006a; Denney ... See full document

... dimensional (2D) nature of the spectra, this selection was carried out by the careful visual inspection of each emission line. Subsequent quantitative analysis of the S/N of these lines revealed that in the ... See full document

... Of special interest is the possibility of using short-timescale lags between variations in different continuum bands to map the temperature structure of the accretion disk. The Swift satellite ( Gehrels et al. 2004 ) is ... See full document