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How is the brightness of a Cepheid star calculated by knowing the period?
The brightness of a Cepheid star is determined by its period-luminosity relationship, which is a relationship between the star's variability period and its intrinsic luminosity. By measuring the period of a Cepheid star, astronomers can use the period-luminosity relationship to calculate its luminosity, and from there determine its apparent brightness as observed from Earth.
How do you measure the distance to a cepheid?
Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.
What is the relationship between Luminosity and Temp for main sequence stars?
The relationship between luminosity and temperature for main sequence stars is described by the Hertzsprung-Russell diagram, where luminosity increases with temperature. This correlation follows a power law, specifically L ∝ T^4, meaning that if a star's temperature increases, its luminosity increases dramatically. Consequently, hotter main sequence stars, like O and B types, are much more luminous than cooler stars, such as K and M types. This relationship arises from the processes of nuclear fusion occurring in the star's core, which depend on temperature and pressure.
Which of the following describes the relationship between Jim and Gaston Cleric?
yes
Which type of star best obey mass-luminosity relation?
Main sequence stars best obey the mass-luminosity relation. This empirical relation states that there is a direct relationship between a star's mass and its luminosity. In general, the more massive a main sequence star is, the more luminous it will be.
What describes the relationship between the luminosity of two stars that have the same radius?
The star that is hotter will have a higher luminosity.
Which statement describes the general relationship between temperature and luminosity of main sequence stars?
as surface temperature increases, luminosity increases
Which correctly describes the information flow and relationship between accident and other investigations?
To answer this question we would have to see the answer choices to correctly figure out the information flow and relationship between accident and other investigations.
Which statement correctly describes the relationship between frequency and wavelength?
As the frequency of a wave increases, the shorter its wavelength is.
What correctly describes the information flow and relationship between acci?
The information flow and relationship between acci is determining if a criminal is made by CID. The accident investigation is preceded.
What is the rleationship between luminosity and tempeature for stars on the main sequence?
On a logarithmic scale for luminosity, it is quite close to a negative linear relationship.
How is the brightness of a Cepheid star calculated by knowing the period?
The brightness of a Cepheid star is determined by its period-luminosity relationship, which is a relationship between the star's variability period and its intrinsic luminosity. By measuring the period of a Cepheid star, astronomers can use the period-luminosity relationship to calculate its luminosity, and from there determine its apparent brightness as observed from Earth.
What statement correctly describes the relationship between desert and semiarid regions?
Deserts receive less precipitation than semiarid regions.
How do you measure the distance to a cepheid?
Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.
What statements correctly describes the relationship between row height and font size?
Row height is automatically increased to accommodate an increase in font size.
What correctly describes the flow and relationship between accident and other investigations?
The investigations need to have the proper procedures to be followed. This will help to ensure that nothing is overlooked.
What describes a relationship between several variables in an algebraic equation?
an algebraic equation that describes a relationship between several variables is called a?
