Our group calculated the period-luminosity and distance-luminosity relationships for RR Lyrae star EZ Lyr for comparison with previously established results from the GAIA satellite. In collaboration with the Our Solar Siblings program, we requested images of EZ Lyr from the Las Cumbres Observatory's ...
A very strong model independent correlation is found between the 1.2 keV-12 keV X-ray flux 0-4 hr before flare ejections with the peak optically thin 2.3 GHz emission of the flares. This suggests a direct physical connection between the energy in the ejection and the luminosity of the ...
(Astronomy) astronomy any of a class of variable stars with regular cycles of variations in luminosity (most ranging from three to fifty days). There is a relationship between the periods of variation and the absolute magnitudes, which is used for measuring the distance of such stars Collins En...
Relationship between solar activity and luminosity 喜欢 0 阅读量: 23 作者: Claus Frhlich 摘要: Measurements of the solar constant — the total irradiance at mean Sun-Earth distance — during the last 12 years from satellites show variations over time scales from minutes to years and decades. ...
Jesús,Benajes,and,... - 《Applied Thermal Engineering》 被引量: 52发表: 2013年 Experimental Study on RME Blends: Liquid-Phase Fuel Penetration, Chemiluminescence, and Soot Luminosity in Diesel-Like Conditions Energy & Fuels DOI: 10.1021/ef101670v JV Pastor,R Payri,J Gimeno,... - 《Energy...
37. The experimentally accessible mass concentrationscof our suspensions, in wt/wt%, can be converted into effective packing fractionsζ = k × cvia the voluminosityk = 0.08, as shown in ref.37. We estimate the error bar in settingζto about ±3%, see also ref.46. We...
Since these galaxies are all members of Fornax, distance uncertainties do not affect the relationship between their optical magnitude and X-ray luminosity. ... C. JONES,C. STERN,W. FORMAN - 《Astrophysical Journal》 被引量: 149发表: 1997年 Relationship between photonic band structure and emissio...
Both redshift and luminosity distance are directly and independently measured. Independently to the amount that luminosity distance does not contain a redshift correction and so does not correspond to what one would normally call "distance". But, assuming c is constant, distance and time should be...
We find a tight relationship between M_{bol} and log g_{F} in agreement with stellar evolution theory. Combining these new results with previous work on Local Group galaxies we obtain a new flux weighted gravity luminosity relationship (FGLR), which is very well defined and appears to be ...
颜色与波长的关系(Therelationshipbetweencolorand wavelength) Tofacilitatethestudyofthecolorpropertiesoflight,the visiblespectrumissurroundedbyaringanddividedintonine regions(seeFigure),calledthecolorring.Digitalcolorring saidcorrespondinglightwavelength,unit(nm),nanocolorring twoontopofanysectorincolor,arecalled...