搜索结果: 16-25 共查到“知识库 基本天体测量学”相关记录25条 . 查询时间(6.031 秒)
Coronagraph feasibility studies on FRIDA。
Multifrequency study of the blue compact Dwarf Haro 2：NIR imaging and optical spectroscopy
blue compact Dwarf Haro 2 NIR imaging optical spectroscopy
2009/6/30
Multifrequency study of the blue compact Dwarf Haro 2：NIR imaging and optical spectroscopy。
Using a semiclassical approach, we have calculated electron−, proton−,
and He III−impact line widths and shifts for 4 Si XI and 61 Si XIII multiplets
as a function of temperature (...
STARK BROADENING PARAMETER TABLES FOR F VI AND Cl VII
BROADENING PARAMETER TABLES F VI Cl VII
2009/3/26
Using a semiclassical approach, we have calculated electron−, proton−,
and He III−impact line widths and shifts for 2 F VI and 10 Cl VII multiplets
as a function of temperature and...
ON THE GEODESICS FOR SPHERICALLY SYMMETRIC DILATON BLACK HOLE
SPHERICALLY SYMMETRIC DILATON BLACK HOLE
2009/3/26
In this paper we shall investigate the timelike geodesics for an
extremal, spherically symmetric, massless dilaton black hole, using an exact solution
obtained by Gary Horowitz.
A set of 71 measurements of double and multiple stars, carried
out with the Large Zeiss Refractor 65/1055 cm of the Belgrade Observatory, is
communicated. The bulk of these measurements, 41 in all, ...
ON THE MODIFICATIONS OF OSCILLATOR STRENGTHS AND DAMPING CONSTANTS OF Fe I SPECTRAL LINES FROM 500 nm TO 510 nm
Atomic data - Line profiles - Techniques spectroscopic
2009/3/6
We modified oscillator strengths and enhancement factors of van
der Waals damping constants for 84 moderately strong and weak neutral iron spec-
tral lines between 500 nm and 510 nm, by fitting the ...
SEMI-ANALYTICAL FORMULAS FOR THE HERTZSPRUNG-RUSSELL DIAGRAM
Stars fundamental parameters-Hertzsprung-Russell (HR) and C-M-Stars general
2009/2/5
The absolute visual magnitude as function of the observed color
(B-V), also named Hertzsprung-Russell diagram, can be described through ¯ve
equations; that when calibrated stars are available m...