Midterm 1 Short Answer (+1-3pts) Record the answers to these
... What is the name of another object in our Solar System besides the Earth and Mars that could potentially have liquid water on it? __Europa or Enceladus__________________ What type of object is Pluto now according to the IAU? _____dwarf planet__________________ What is the lunar soil that consists of ...
... What is the name of another object in our Solar System besides the Earth and Mars that could potentially have liquid water on it? __Europa or Enceladus__________________ What type of object is Pluto now according to the IAU? _____dwarf planet__________________ What is the lunar soil that consists of ...
Starbursts – from 30 Doradus to Lyman
... found in, for example, blue compact dwarf galaxies; and extreme or “psychopathic” starbursts, mostly found in distant systems. The evidence that, to first order, we can indeed scale star-formation physics across these ranges is, fortunately, good. This implies that we require only modest (rather tha ...
... found in, for example, blue compact dwarf galaxies; and extreme or “psychopathic” starbursts, mostly found in distant systems. The evidence that, to first order, we can indeed scale star-formation physics across these ranges is, fortunately, good. This implies that we require only modest (rather tha ...
Does size matter (in the SFRs)?
... sented the results on the SFRs of two small spiral galaxies with very similar HI content but with different size. According to Kennicutt (1998) they both should be galaxies are more the same locations of the graph, and have very similar values of the SFRs. On the contrary of course, UGC 5296 is not ...
... sented the results on the SFRs of two small spiral galaxies with very similar HI content but with different size. According to Kennicutt (1998) they both should be galaxies are more the same locations of the graph, and have very similar values of the SFRs. On the contrary of course, UGC 5296 is not ...
Transcript of lecture I
... For these reasons the speaker in these talks prefers speech over writing though he realizes there is a place for each. For the above reasons the speaker does not approve, condone, authorize or encourage transcription, nor does he wish to participate in it. If the speaker wanted written products he w ...
... For these reasons the speaker in these talks prefers speech over writing though he realizes there is a place for each. For the above reasons the speaker does not approve, condone, authorize or encourage transcription, nor does he wish to participate in it. If the speaker wanted written products he w ...
astronomy 31 - UNC Physics
... D. Because Earth rotates, the stars appear to move around the north celestial pole in the northern hemisphere and the south celestial pole in the southern hemisphere. When standing at the north pole, the north celestial pole is directly overhead and when standing at the south pole the south celestia ...
... D. Because Earth rotates, the stars appear to move around the north celestial pole in the northern hemisphere and the south celestial pole in the southern hemisphere. When standing at the north pole, the north celestial pole is directly overhead and when standing at the south pole the south celestia ...
NCEA Level 2 Earth and Space Science (91192) 2015
... So Deneb is very bright and luminous in the night sky, while Sirius B is very dim in the night sky, despite being the same surface temperature. The fact their surface temperature is the same means that both stars are emitting the same amount of energy per square metre. As Deneb has a larger surface ...
... So Deneb is very bright and luminous in the night sky, while Sirius B is very dim in the night sky, despite being the same surface temperature. The fact their surface temperature is the same means that both stars are emitting the same amount of energy per square metre. As Deneb has a larger surface ...
NCEA Level 2 Earth and Space Science (91192) 2015
... So Deneb is very bright and luminous in the night sky, while Sirius B is very dim in the night sky, despite being the same surface temperature. The fact their surface temperature is the same means that both stars are emitting the same amount of energy per square metre. As Deneb has a larger surface ...
... So Deneb is very bright and luminous in the night sky, while Sirius B is very dim in the night sky, despite being the same surface temperature. The fact their surface temperature is the same means that both stars are emitting the same amount of energy per square metre. As Deneb has a larger surface ...
Astronomy (stars, galaxies and the Universe)
... Groups of stars that form a pattern The revolution of the Earth around the Sun cause different constellations to be seen at different times of the year Stars located above the north and south poles, called circumpolar stars, appear to move in circles above the horizon each night Astronomers use cons ...
... Groups of stars that form a pattern The revolution of the Earth around the Sun cause different constellations to be seen at different times of the year Stars located above the north and south poles, called circumpolar stars, appear to move in circles above the horizon each night Astronomers use cons ...
Red Giants - Faculty Web Pages
... Most blue stars are Main Sequence stars. But whereas some red stars in the list are simply tiny, cool Main Sequence stars, other red stars of the exact same color are huge Red Giants! Telling the difference between the Main Sequence red stars and the Red Giant stars involves some complex measurement ...
... Most blue stars are Main Sequence stars. But whereas some red stars in the list are simply tiny, cool Main Sequence stars, other red stars of the exact same color are huge Red Giants! Telling the difference between the Main Sequence red stars and the Red Giant stars involves some complex measurement ...
Stellar Luminosities
... produced in a star and radiated into space in the form of E-M radiation. How do we determine the luminosity of the Sun? 1) Measure the Sun’s apparent brightness 2) Measure the Sun’s distance 3) Use the inverse square law ...
... produced in a star and radiated into space in the form of E-M radiation. How do we determine the luminosity of the Sun? 1) Measure the Sun’s apparent brightness 2) Measure the Sun’s distance 3) Use the inverse square law ...
A-105 Homework 1
... of light). How long would it take to travel from one end of the galaxy to the other moving at warp 9? What about from our solar system to the Galactic center? (Express your answers in the most intuitive units.) ...
... of light). How long would it take to travel from one end of the galaxy to the other moving at warp 9? What about from our solar system to the Galactic center? (Express your answers in the most intuitive units.) ...
The Life And Times Of A Star
... They burn hydrogen to helium in their cores. They have a relationship between mass, temperature, and luminosity: – More massive = bigger (higher R) – More massive = hotter (higher T) – More massive = brighter (higher L) ...
... They burn hydrogen to helium in their cores. They have a relationship between mass, temperature, and luminosity: – More massive = bigger (higher R) – More massive = hotter (higher T) – More massive = brighter (higher L) ...
Earth and Space Test
... 1. Shadows Follow a Daily Pattern when the sun causes a shadow; it follows a daily pattern of changes. The length and the direction of the shadows change. These changes are caused by the apparent position of the sun. An object’s shadow is shortest at noon, when the sun is directly above. As the sun ...
... 1. Shadows Follow a Daily Pattern when the sun causes a shadow; it follows a daily pattern of changes. The length and the direction of the shadows change. These changes are caused by the apparent position of the sun. An object’s shadow is shortest at noon, when the sun is directly above. As the sun ...
1 Dr. Steve Hawley Volume 35 Number 04 APRIL 2009
... The explosion, called supernova SN 2005gl, was seen in the barred-spiral galaxy NGC 266 on October 5, 2005. Pre-explosion pictures from the Hubble archive, taken in 1997, reveal the progenitor as a very luminous point source with an absolute visual magnitude of -10.3. The progenitor was so bright th ...
... The explosion, called supernova SN 2005gl, was seen in the barred-spiral galaxy NGC 266 on October 5, 2005. Pre-explosion pictures from the Hubble archive, taken in 1997, reveal the progenitor as a very luminous point source with an absolute visual magnitude of -10.3. The progenitor was so bright th ...
4B-Astronomer-Notes
... precise instruments available before the invention of the telescope for observing the heavens He charted over 1000 stars in the sky. His observations of planetary motion, particularly that of Mars, provided the crucial data for later astronomers like Kepler to construct our present model of the sola ...
... precise instruments available before the invention of the telescope for observing the heavens He charted over 1000 stars in the sky. His observations of planetary motion, particularly that of Mars, provided the crucial data for later astronomers like Kepler to construct our present model of the sola ...
Astronomy (stars, galaxies and the Universe)
... Groups of stars that form a pattern The revolution of the Earth around the Sun cause different constellations to be seen at different times of the year Stars located above the north and south poles, called circumpolar stars, appear to move in circles above the horizon each night Astronomers use cons ...
... Groups of stars that form a pattern The revolution of the Earth around the Sun cause different constellations to be seen at different times of the year Stars located above the north and south poles, called circumpolar stars, appear to move in circles above the horizon each night Astronomers use cons ...
Star
... • Planets - A moderately large object which orbits a star; it shines by reflected light. Planets may be rocky, icy, or gaseous in composition. • Moons - an object which orbits a planet • Asteroids - A relatively small and rocky object which orbits a star. • Comets -A relatively small and icy object ...
... • Planets - A moderately large object which orbits a star; it shines by reflected light. Planets may be rocky, icy, or gaseous in composition. • Moons - an object which orbits a planet • Asteroids - A relatively small and rocky object which orbits a star. • Comets -A relatively small and icy object ...
Simulating Gravitational Attraction Activity
... d) Does this agree with the fact that Jupiter takes almost 12 times longer than the Earth to go once around the sun? e) In galaxies, the stars further from the galactic center spin with about the same tangential velocity as those closer in, make this apparatus demonstrate this. How can you do this? ...
... d) Does this agree with the fact that Jupiter takes almost 12 times longer than the Earth to go once around the sun? e) In galaxies, the stars further from the galactic center spin with about the same tangential velocity as those closer in, make this apparatus demonstrate this. How can you do this? ...
Some Basic Facts to Know
... • Stars form in dense gas clouds = molecular clouds • Shielded from UV radiation by dust Î atoms are combined into molecules. • H2 …and also H2O, NH3, CO plus much more complex molecules. ...
... • Stars form in dense gas clouds = molecular clouds • Shielded from UV radiation by dust Î atoms are combined into molecules. • H2 …and also H2O, NH3, CO plus much more complex molecules. ...
7.4 Evolution on the Main-Sequence Main-sequence (m
... increasing Tc . This produces a “left hook” in the HRD. The time spent in this phase is very short compared to the m-s phase. Hence very few stars are found in this final phase of m-s evolution. As H is exhausted, the star establishes a H-burning shell source around the core. The m-s lifetime τm−s ∝ ...
... increasing Tc . This produces a “left hook” in the HRD. The time spent in this phase is very short compared to the m-s phase. Hence very few stars are found in this final phase of m-s evolution. As H is exhausted, the star establishes a H-burning shell source around the core. The m-s lifetime τm−s ∝ ...
Talk
... - well understood in terms of single star evolution - nearby and easily accessible with 2-8m telescopes - no mass transfer systems 18 PCEBs identified from RVs SDSS ...
... - well understood in terms of single star evolution - nearby and easily accessible with 2-8m telescopes - no mass transfer systems 18 PCEBs identified from RVs SDSS ...
The Solar Neighborhood
... clusters, you will need to extrapolate the main sequence to magnitudes fainter than have been plotted. Sometimes astronomical photographs don’t reach faint enough stars to detect the bottom portion of the main sequence. Using the HR diagrams, answer the following questions. 1. Which cluster contains ...
... clusters, you will need to extrapolate the main sequence to magnitudes fainter than have been plotted. Sometimes astronomical photographs don’t reach faint enough stars to detect the bottom portion of the main sequence. Using the HR diagrams, answer the following questions. 1. Which cluster contains ...
Motions of the Sky—2 Sep Hipparchus measures the moon’s distance~200BC
... Moon is offset by 1/4 diameter of sun ...
... Moon is offset by 1/4 diameter of sun ...
Astronomy and Survey of Information
... • It is impossible to obtain the complete orbit of a spectroscopic binary unless it is also a visual or an eclipsing binary, so from these objects only a determination of the joint product of mass and the sine of the angle of inclination relative to the line of sight is possible. • Therefore, withou ...
... • It is impossible to obtain the complete orbit of a spectroscopic binary unless it is also a visual or an eclipsing binary, so from these objects only a determination of the joint product of mass and the sine of the angle of inclination relative to the line of sight is possible. • Therefore, withou ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.