File - the ridgeway ASTRONOMY page
... Now you know a little more about stellar spectroscopy, you will soon get the chance to look at some real spectra from the Liverpool Telescope! Your teacher will supply you with an Excel file containing the 2-D spectral data for 9 stars, each under its own separate tab or page of the worksheet. You a ...
... Now you know a little more about stellar spectroscopy, you will soon get the chance to look at some real spectra from the Liverpool Telescope! Your teacher will supply you with an Excel file containing the 2-D spectral data for 9 stars, each under its own separate tab or page of the worksheet. You a ...
10 Measuring The Stars
... a) distance and surface temperature b) luminosity and surface temperature c) distance and luminosity d) mass and age e) distance and color ...
... a) distance and surface temperature b) luminosity and surface temperature c) distance and luminosity d) mass and age e) distance and color ...
black hole
... accumulates uniformly throughout the star. Thus, the star is not limited only to the fuel in its core. It can use all its hydrogen to prolong its life on the main sequence. ...
... accumulates uniformly throughout the star. Thus, the star is not limited only to the fuel in its core. It can use all its hydrogen to prolong its life on the main sequence. ...
... Griffin – There were some cases in your graphs where some of the modern and supposedly very accurate measurements disagreed with one another. In the case of ADS 4186E, for example, the last two points disagreed by about ten standard deviations. Are they showing real changes of motion? Allen – This i ...
OBJXlab
... reader tries to find one person in a crowd of thousands—you can stare straight at the object you’re looking for, yet fail to find what’s right before your eyes. To appreciate the difficulty of discovering something of interest among the multitude of lights in the sky, consider the following: On a da ...
... reader tries to find one person in a crowd of thousands—you can stare straight at the object you’re looking for, yet fail to find what’s right before your eyes. To appreciate the difficulty of discovering something of interest among the multitude of lights in the sky, consider the following: On a da ...
Xiao Yang Xia
... low redshift follow Mbulge- MBH relation, i.e., the ratio of the star formation rate and the accretion rate is about several hundred for IR QSOs, but decreases with the central black hole mass. This shows that the tight correlation between the stellar mass and the central black hole mass is preserve ...
... low redshift follow Mbulge- MBH relation, i.e., the ratio of the star formation rate and the accretion rate is about several hundred for IR QSOs, but decreases with the central black hole mass. This shows that the tight correlation between the stellar mass and the central black hole mass is preserve ...
Red Objects in the DFBS
... according to its coordinates, finds the position of the Red-Head of the spectrum, compute the local background, finds the spectrum direction and extract the spectrum summing over a 5 pixels wide strip. • Due to the sensitivity function of the emulsion, and the variable dispersion of the prism with w ...
... according to its coordinates, finds the position of the Red-Head of the spectrum, compute the local background, finds the spectrum direction and extract the spectrum summing over a 5 pixels wide strip. • Due to the sensitivity function of the emulsion, and the variable dispersion of the prism with w ...
main sequence stars of a open cluster
... Draw CM diagram of an open cluster, and find out the main sequence. 2. Outline Take apparent magnitude of stars on the vertical axis, and take color (or spectral type) on the horizontal axis. The plot with these axes is called CM (or HR) diagram. In this work, draw CM diagram of an open cluster NGC ...
... Draw CM diagram of an open cluster, and find out the main sequence. 2. Outline Take apparent magnitude of stars on the vertical axis, and take color (or spectral type) on the horizontal axis. The plot with these axes is called CM (or HR) diagram. In this work, draw CM diagram of an open cluster NGC ...
Pulsars: Astronomical Clocks In The Sky
... The light from the pulsar is blue-shifted and red-shifted because the pulsar is moving around another object ...
... The light from the pulsar is blue-shifted and red-shifted because the pulsar is moving around another object ...
Book: Introduction to Matter (in
... of number indicates VERY BRIGHT? 8. If two stars had identical apparent magnitudes, but Star A had an absolute magnitude of -2.8 and Star B had an absolute magnitude of 3.1, which star is further away and why? 9. Describe how color indicates the temperature of a star. What is the class order from ho ...
... of number indicates VERY BRIGHT? 8. If two stars had identical apparent magnitudes, but Star A had an absolute magnitude of -2.8 and Star B had an absolute magnitude of 3.1, which star is further away and why? 9. Describe how color indicates the temperature of a star. What is the class order from ho ...
Temperatures of Stars
... not all stars with Teff = 5800 K are like the Sun other parameters include the chemical composition, more specifically the proportion of heavy elements with respect to hydrogen in astronomical jargon this parameter is called [Fe/H] for the Sun, [Fe/H] = 0. For a star with an abundance of iron and o ...
... not all stars with Teff = 5800 K are like the Sun other parameters include the chemical composition, more specifically the proportion of heavy elements with respect to hydrogen in astronomical jargon this parameter is called [Fe/H] for the Sun, [Fe/H] = 0. For a star with an abundance of iron and o ...
February 2015 - astronomy for beginners
... These belts are mainly different shades of browns with variations from yellow through orange to chocolate brown. There are even reds especially in the famous Great Red Spot although it is in fact more pink than red. The Great Red Spot is a massive storm much larger than the size of the Earth. It has ...
... These belts are mainly different shades of browns with variations from yellow through orange to chocolate brown. There are even reds especially in the famous Great Red Spot although it is in fact more pink than red. The Great Red Spot is a massive storm much larger than the size of the Earth. It has ...
Extragalactic AO Science
... AO systems produce additional background in Near-IR and reduce throughput further making it difficult to observe faint extended sources. Normal galaxy disks only achieve a maximum SB of K~16 mag/sq arcsec and this fades as (1+z)4. This means all normal disks are fainter than 22.5 mag within 0.05x0.0 ...
... AO systems produce additional background in Near-IR and reduce throughput further making it difficult to observe faint extended sources. Normal galaxy disks only achieve a maximum SB of K~16 mag/sq arcsec and this fades as (1+z)4. This means all normal disks are fainter than 22.5 mag within 0.05x0.0 ...
z - STScI
... – Emission line diagnostics, KAB ~33 R ~ 1000, • Star-formation rates • Metallicities/reddening • Kinematics of bound groups/proto Milky Way galaxies ...
... – Emission line diagnostics, KAB ~33 R ~ 1000, • Star-formation rates • Metallicities/reddening • Kinematics of bound groups/proto Milky Way galaxies ...
Ursa Minor
Ursa Minor (Latin: ""Smaller She-Bear"", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the northern sky. Like the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the name Little Dipper. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Ursa Minor has traditionally been important for navigation, particularly by mariners, due to Polaris being the North Star.Polaris, the brightest star in the constellation, is a yellow-white supergiant and the brightest Cepheid variable star in the night sky, ranging from apparent magnitude 1.97 to 2.00. Beta Ursae Minoris, also known as Kochab, is an aging star that has swollen and cooled to become an orange giant with an apparent magnitude of 2.08, only slightly fainter than Polaris. Kochab and magnitude 3 Gamma Ursae Minoris have been called the ""guardians of the pole star"". Planets have been detected orbiting four of the stars, including Kochab. The constellation also contains an isolated neutron star—Calvera—and H1504+65, the hottest white dwarf yet discovered with a surface temperature of 200,000 K.