... The <B> element specifies that the enclosed text should be displayed in a boldface. ... The <I> element specifies that the enclosed text should be displayed, if practical, in an italic font (or slanted). ... The <SMALL> element specifies that the enclosed text should be displayed, if practical, using a small font (compared with normal text). ... The <SUB> element specifies that the enclosed text should be displayed as a subscript, and if practical, using a smaller font (compared with normal text). ...

... Incorrect Resolution Element Used by COS ETC for new G130M Modes . ... HST Overview . ... The resolving power of the two new COS/FUV G130M modes (cenwave=1055 and cenwave=1096) decreases with increasing wavelength, from R ~ 3000 at 950 ? ... Since the ETC uses a 6-pixel resolution element that is 5 and 19 times smaller, respectively, it will overestimate the time required to achieve a certain S/N per 30-pixel or 115-pixel resolution element, while underestimating the S/N obtained for a given time. ...

Sternberg Astronomical Institute, Moscow University, . Moscow, Russia . Supernovae make us brighter .. Search russian astronomical resources . Mirror of International Supernovae Network ( Original site ) . Catalogue of Supernovae Stars . HTTP access to SAI Catalogue of Supernovae Stars . SAI SN Light Curves Online . ... Sternberg Astronomical Institute ( in Russian ) . ... Astronet - Russian Astronomical Network . ... Russian Foundation for Basic Research . ...

Amanda Karakas One of the most important research fields in astrophysics is the study of the origin of the elements. ... Asymptotic Giant Blanch (AGB) Stars: For low and intermediate-mass stars (with initial masses between about 0.8 to 8 solar masses) the most important nucleosynthesis occurs when stars evolve off the main sequence to the giant branches. ... This indicates that these stars obtained their unusual abundances via mass transfer from a previous red giant star, that has long evolved away. ...

... We present data for the additional lines after processing and baseline fitting H91, H92 within this HII region. Integrated line profiles for H90 (top left), H91 (top right) and H92 (bottom left) are all 16MHz bands with a resolution of 512. ... The radio recombination lines of hydrogen H90, H91, H92, helium He91 and carbon C91 were detected from OrionA, and H90, H91, H92 from M17 and NGC3603 at 8GHz. ... The recombination lines from left to right are H90 and H91. ...

... Figure: A dark current CCD exposure with cosmic ray events which are removed with non--linear filters. ... Figure shows a CCD dark current exposure with cosmic ray events. ... Figure: Removal of cosmic ray events on a CCD spectral exposure with different techniques: (A) original, (B) median filter, (C) recursive filter and (D) stack comparison. ... For comparison with non--linear filter techniques, Figure D shows removal of cosmic ray events from the spectral frame discussed above. ...

Note that different students may see different quiz forms.) ... Giant stars are rare because . a) they do not form as often as main sequence stars. b) giant stars are unstable. c) the giant stage is very short compared to the main sequence stage. d) elements heavier than helium are relatively rare. In a color-magnitude diagram of a star cluster, the blue end of the main sequence is useful for defining the age of the cluster because . ... 2) Some idea. 3) Good idea. ...

We have designed the laboratory model of static Fourier spectrometer for onboard usage for spectral study of atmosphere and ionosphere. The gain of model is to simulate onboard FS which will not have any moving elements (all its optical elements will be mounted at fused quartz monolithic construction), to compare experimental results with theoretical estimations and to measure MTF of CCD array. ... This fact connected with low frequency response of CCD array due to small format of it. ...