... Let us first find out which way -- rise in spectral resolution with some loss in the S/N ratio or increase in the S/N ratio with a fixed spectral resolution -- is better for the purpose of reduction of equivalent width determination errors. ... N -- number of counts for 1 ? ... line equivalent width, . ... Thus if the spectral resolution is managed to be increased (i.e. to decrease )without loss in the number of counts falling at 1 ?, the equivalent width measurement error is then proportional to . ...

... CentralProcessor 0.11 documentation . ... Here we detail the input parameters that cover the overall process control, and the switches to turn on & off different parts of the pipeline. Values for parameters that act as flags (ie. those that accept true/false values) should be given in lower case only , to ensure comparisons work properly. These parameters affect how the slurm jobs are set up and where the output data products go. ... SUBMIT_JOBS . ... User Parameters - Pipeline & job control . ...

Arecibo World Day data description . ... The F-region program covers the altitude range of 140 - 660 km. ... The KINDAT code in the CEDAR database for these parameters is 2010. ... The KINDAT code in the CEDAR database is 2021 for this kind of data. The barker-code program allows the measurement of electron concentration at a height resolution of 0.6 km with a very high S/N. This program typically covers the altitude range of 60 - 500 km. The KINDAT code in the CEDAR database is 2015. ...

XMM-Newton Science Analysis System . ... yes . ... pn source region expression for spectral analysis . ... pn background region expression for spectral analysis . ... mos1 source region expression for spectral analysis . ... mos1 background region expression for spectral analysis . ... mos2 source region expression for spectral analysis . ... pn source region expression for timing analysis . ... mos1 source region expression for timing analysis . ... mos2 source region expression for timing analysis . ...

... mama/ : STIS UV imaging . ... stis_flank/ STIS Flanking Field imaging . ... Directory name: stis_v1catalog/ stis_v1generic.cat Generic parameters (e.g. numbers, positions) from detect image fuv_v1.cat Photometric parameter from FUVMAMA+F25QTZ observation lp_v1.cat Photometric parameter from CCD+F28X50LP observation nuv_v1.cat Photometric parameter from NUVMAMA+F25QTZ observation s50ccd_v1.cat Photometric parameter from CCD+50CCD observation stis_v1catalog.fits Full Catalog in stsdas table format . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The interface between the lower solar atmosphere where energy is generated by subsurface convection and the corona comprises the chromosphere, which is dominated by jet-like, dynamic structures, called mottles when found in quiet regions, fibrils when found in active regions and spicules when observed at the solar limb. ... In addition, how they affect the coronal heating and solar wind need to be further explored. ...

Observed maximum rotation velocity uncorrected for inclination effect. This quantity is calculated from 21-cm line widths at different levels and/or rotation curves (generally in H_alpha). ... These data are characterized by some secondary parameters: telescope, velocity resolution, level of the 21-cm line width and bibliographic reference. ... we start from a standard sample (a set of measurements giving a large and homogeneous sample). ... HyperLeda . ...

Next: Star Formation Rate and Up: No Title Previous: Calculation of Evolutionary Tracks . To start calculations, we choose the distributions of the initial binary parameters: the mass of the primary ZAMS component, , binary mass ratio, , orbital separation a . ... whereas the mass ratio distribution is not. ... The zero assumption often made is that the mass ratio distribution has a flat shape, that is binaries with a high mass ratio occur as frequently as those with equal masses. ...

Static Fourier spectrometers are often used for spectral measurements of the ionosphere emissions. There are two main advantages of Fourier spectrometers (FS) - large geometric factor and high spectral resolution; these parameters are two orders better than for grating spectral instruments. ... In scanning Fourier spectrometer optical and electric modulation of signal is used to avoid this problem, for static Fourier spectrometer there are no such ways. ...

... The value of tile-size, NW , may be thought of as a sixth coordinate axis in the chirplet transform parameter space - TF-area. Including this sixth coordinate axis provides us with a hierarchical (multi-resolution) CCT. ... Various 2- D slices through the multiresolution CCT may correspond to useful tilings of the TF plane with true parallelograms (true to the extent that the DPSS define a truly rectangular region in the TF plane). ...

... 18-Jan-2010 17:22 . ... Apache/2.2.3 (CentOS) Server at www.wdcb.ru Port 80 ...