Imaging the Universe Robert Mutel A Laboratory Manual for Introductory Astronomy
... because you could barely see 0.04 meters from a 100 meters away, much less from many parsecs. The second piece of advice has to do with the magnitude of numbers. Calculations in astronomy nearly always yield immense numbers. One way to deal with this (which will probably help you remember things) is ...
... because you could barely see 0.04 meters from a 100 meters away, much less from many parsecs. The second piece of advice has to do with the magnitude of numbers. Calculations in astronomy nearly always yield immense numbers. One way to deal with this (which will probably help you remember things) is ...
Specification Topic 1 – Earth, Moon and Sun 1.1 Planet Earth
... 3.2l explain the apparent east-west motion of the night sky 3.2m recall that stars cross the observer’s meridian and culminate when they are due south 3.2n use star data and charts to determine the time at which a star will cross the observer’s meridia n 3.3 Physical Properties of Stars Candidates s ...
... 3.2l explain the apparent east-west motion of the night sky 3.2m recall that stars cross the observer’s meridian and culminate when they are due south 3.2n use star data and charts to determine the time at which a star will cross the observer’s meridia n 3.3 Physical Properties of Stars Candidates s ...
GALEX and Star Formation
... enrichment history of galaxies, and the relation of extinction to local and global galaxy properties such as metallicity and starburst intensity. It is also neccessary to characterize dust extinction in various conditions, in order to interpret integrated properties of distant galaxies such as those ...
... enrichment history of galaxies, and the relation of extinction to local and global galaxy properties such as metallicity and starburst intensity. It is also neccessary to characterize dust extinction in various conditions, in order to interpret integrated properties of distant galaxies such as those ...
here
... eastern sky prior to sunrise for northern hemisphere observers and will be more easily visible at the end of the month, when it brightens to magnitude -0.3. During May, Venus shines prominently in the dawn sky. It decreases in angular diameter from 37.8 arc minutes to 24.8 arc minutes but increases ...
... eastern sky prior to sunrise for northern hemisphere observers and will be more easily visible at the end of the month, when it brightens to magnitude -0.3. During May, Venus shines prominently in the dawn sky. It decreases in angular diameter from 37.8 arc minutes to 24.8 arc minutes but increases ...
High-precision abundances of elements in solar twin stars: Trends
... asteroids) are used to determine very precise (σ ∼ 0.01 dex) differential abundances of elements in order to see how well [X/Fe] is correlated with T C and other parameters such as stellar age. Methods. Abundances of C, O, Na, Mg, Al, Si, S, Ca, Ti, Cr, Fe, Ni, Zn, and Y are derived from equivalent ...
... asteroids) are used to determine very precise (σ ∼ 0.01 dex) differential abundances of elements in order to see how well [X/Fe] is correlated with T C and other parameters such as stellar age. Methods. Abundances of C, O, Na, Mg, Al, Si, S, Ca, Ti, Cr, Fe, Ni, Zn, and Y are derived from equivalent ...
Astronomers` Observing Guides
... significance in the cosmic scheme of things, and the valuable insights they provide into such fundamental matters as stellar masses and the ultimate fate of stars. The more we know about these fascinating objects, the more enjoyment we will ultimately derive from actually viewing them firsthand with b ...
... significance in the cosmic scheme of things, and the valuable insights they provide into such fundamental matters as stellar masses and the ultimate fate of stars. The more we know about these fascinating objects, the more enjoyment we will ultimately derive from actually viewing them firsthand with b ...
- National Optical Astronomy Observatory
... magnetic field lines unless there was an indirect mechanism for their flow, namely, other materials that are directed by the magnetic field. The data seems to indicate that the mechanism for the nickel’s movement is not the flow of iron directed by the magnetic fields. The nickel displays greater va ...
... magnetic field lines unless there was an indirect mechanism for their flow, namely, other materials that are directed by the magnetic field. The data seems to indicate that the mechanism for the nickel’s movement is not the flow of iron directed by the magnetic fields. The nickel displays greater va ...
The Age Distribution of Potential Intelligent Life in the Milky Way
... From this equation we can see that the gas mass lost as it is turned into stars (per parsec squared per year) is proportional to the total mass of gas (per parsec squared) to the power n. Observations of distant galaxies have found this relationship to hold consistently, just with varying values of ...
... From this equation we can see that the gas mass lost as it is turned into stars (per parsec squared per year) is proportional to the total mass of gas (per parsec squared) to the power n. Observations of distant galaxies have found this relationship to hold consistently, just with varying values of ...
I. Constellations
... II. Ecliptic: Over the course of a year, the ___Sun____ changes its relative position in the sky against the background stars. This is due to the orbital motion of the Earth. The yearly __ path ___ the Sun takes across the sky is called the ecliptic. III. Zodiac Constellations: The ___ecliptic____ p ...
... II. Ecliptic: Over the course of a year, the ___Sun____ changes its relative position in the sky against the background stars. This is due to the orbital motion of the Earth. The yearly __ path ___ the Sun takes across the sky is called the ecliptic. III. Zodiac Constellations: The ___ecliptic____ p ...
sections 23-25 powerpoint
... The familiar “tuning fork” diagram developed by Edwin Hubble is an attempt to link the main galaxy types of elliptical (E), spiral (S), barred spiral (SB), and irregular (Ir) classes. The lenticular galaxies (S0, SB0), added later, were a supposed link between spheroidal E galaxies and flattened S a ...
... The familiar “tuning fork” diagram developed by Edwin Hubble is an attempt to link the main galaxy types of elliptical (E), spiral (S), barred spiral (SB), and irregular (Ir) classes. The lenticular galaxies (S0, SB0), added later, were a supposed link between spheroidal E galaxies and flattened S a ...
PP Chapter 28 Text
... We see the Sun’s luminosity as LSun. If we were on a spaceship twice as far away from the Sun, its apparent brightness would appear A. B. C. D. ...
... We see the Sun’s luminosity as LSun. If we were on a spaceship twice as far away from the Sun, its apparent brightness would appear A. B. C. D. ...
Collisions and Encounters of Stellar Systems
... the galaxies are uncorrelated, the rate at which an L! galaxy suffers collisions with similar galaxies is then expected to be of order nΣvp ≈ 10−6 Gyr−1 , so only about one galaxy in 105 would suffer a collision during the age of the universe. Such arguments led astronomers to think of galaxies as i ...
... the galaxies are uncorrelated, the rate at which an L! galaxy suffers collisions with similar galaxies is then expected to be of order nΣvp ≈ 10−6 Gyr−1 , so only about one galaxy in 105 would suffer a collision during the age of the universe. Such arguments led astronomers to think of galaxies as i ...
S1_Testbank
... 26) The constellation shaped like a W is A) Cassiopeia. B) Pegasus. C) Canis Major. D) Taurus. E) Andromeda. Answer: A 27) Which of the following statements about Betelgeuse is not true? A) It is distinctly red in color. B) We now know that it is a very massive star near the end of its life. C) Its ...
... 26) The constellation shaped like a W is A) Cassiopeia. B) Pegasus. C) Canis Major. D) Taurus. E) Andromeda. Answer: A 27) Which of the following statements about Betelgeuse is not true? A) It is distinctly red in color. B) We now know that it is a very massive star near the end of its life. C) Its ...
Neutrinos and Supernovae
... But there is one exception They occur on average to the neutrino’s demure only once every 50 years role. It occurs in the heart of or so within a given massive stars, deep within galaxy. The inhabitants of the stellar core. When a masthe northern hemisphere sive star dies, it does not go have not be ...
... But there is one exception They occur on average to the neutrino’s demure only once every 50 years role. It occurs in the heart of or so within a given massive stars, deep within galaxy. The inhabitants of the stellar core. When a masthe northern hemisphere sive star dies, it does not go have not be ...
Preview Sample 2
... 25) The constellation shaped like a big square (the "great square of . . . ") is A) Cassiopeia. B) Pegasus. C) Canis Major. D) Taurus. E) Andromeda. Answer: B 26) The constellation shaped like a W is A) Cassiopeia. B) Pegasus. C) Canis Major. D) Taurus. E) Andromeda. Answer: A 27) Which of the foll ...
... 25) The constellation shaped like a big square (the "great square of . . . ") is A) Cassiopeia. B) Pegasus. C) Canis Major. D) Taurus. E) Andromeda. Answer: B 26) The constellation shaped like a W is A) Cassiopeia. B) Pegasus. C) Canis Major. D) Taurus. E) Andromeda. Answer: A 27) Which of the foll ...
NSDL_WS_1_Astonomy
... http://www.compadre.org/Astronomy Hubble Space Telescope http://hubblesite.org International Year of Astronomy 2009 http://astronomy2009.us http://astronomy2009.org ...
... http://www.compadre.org/Astronomy Hubble Space Telescope http://hubblesite.org International Year of Astronomy 2009 http://astronomy2009.us http://astronomy2009.org ...
The cosmic origin of fluorine and sulphur
... lutionary stage of their lives, core-collapse supernovae, which are the explosions ending massive stars’ lives, or very massive stars called Wolf-Rayet stars. In the thesis I find that all the fluorine in the solar neighborhood most likely was produced by asymptotic giant branch stars. e picture on t ...
... lutionary stage of their lives, core-collapse supernovae, which are the explosions ending massive stars’ lives, or very massive stars called Wolf-Rayet stars. In the thesis I find that all the fluorine in the solar neighborhood most likely was produced by asymptotic giant branch stars. e picture on t ...
instructor notes: weeks 9/10
... bluer in colour than isolated galaxies, presumably because of the presence of recently-created hot young stars. It is believed that a tidal interaction with another galaxy has induced star formation, although the resulting excess luminosity is hidden behind obscuring clouds of gas and dust. Such gal ...
... bluer in colour than isolated galaxies, presumably because of the presence of recently-created hot young stars. It is believed that a tidal interaction with another galaxy has induced star formation, although the resulting excess luminosity is hidden behind obscuring clouds of gas and dust. Such gal ...
The first carbon-enhanced metal-poor star found in the Sculptor
... patterns that suggest mass transfer from a companion in the AGB phase (Lucatello et al. 2005). Thus the C, N, O, and heavy elements for these stars do not reflect the ISM from which they were formed. The available data for CEMP-s stars is consistent with ∼100% binary fraction and a maximum period of ...
... patterns that suggest mass transfer from a companion in the AGB phase (Lucatello et al. 2005). Thus the C, N, O, and heavy elements for these stars do not reflect the ISM from which they were formed. The available data for CEMP-s stars is consistent with ∼100% binary fraction and a maximum period of ...
the stebbins galaxy: the origins of interstellar medium studies
... 1) The distribution of globular clusters, presumed to be centered around the center of mass of the Galaxy, shows the Sun to be far from that center. 2) The measured distances to globular clusters show the Galaxy to be about 70,000 parsecs (200,000 light-years or so) in diameter (Shapley, 1930a: 221) ...
... 1) The distribution of globular clusters, presumed to be centered around the center of mass of the Galaxy, shows the Sun to be far from that center. 2) The measured distances to globular clusters show the Galaxy to be about 70,000 parsecs (200,000 light-years or so) in diameter (Shapley, 1930a: 221) ...
Populations of Galaxies and their Formation at z < 7
... What could these galaxies be, and are they most of the galaxy population at high redshift? No. ...
... What could these galaxies be, and are they most of the galaxy population at high redshift? No. ...
CHAPTER 1 The Formation and Structure of Stars
... • How do astronomers know there is an interstellar medium, and how do they know its properties? – In some cases, the interstellar medium is easily visible as clouds of gas and dust—as in the case of the Great Nebula in Orion. – Astronomers call such a cloud a nebula—from the Latin word for cloud. – ...
... • How do astronomers know there is an interstellar medium, and how do they know its properties? – In some cases, the interstellar medium is easily visible as clouds of gas and dust—as in the case of the Great Nebula in Orion. – Astronomers call such a cloud a nebula—from the Latin word for cloud. – ...
Carbon, nitrogen, oxygen and lithium abundances of six
... In Table 1 are reported the instrument used, visual magnitude and given in Prévot et al. (1983), and the stellar parameters effective temperature Teff , gravity log g, metallicity [Fe/H] and microturbulent velocity vt obtained in Paper I. In the derivation of stellar parameters, models with log g p ...
... In Table 1 are reported the instrument used, visual magnitude and given in Prévot et al. (1983), and the stellar parameters effective temperature Teff , gravity log g, metallicity [Fe/H] and microturbulent velocity vt obtained in Paper I. In the derivation of stellar parameters, models with log g p ...
Perseus (constellation)
Perseus, named after the Greek mythological hero Perseus, is a constellation in the northern sky. It was one of 48 listed by the 2nd-century astronomer Ptolemy and among the 88 modern constellations defined by the International Astronomical Union (IAU). It is located in the northern celestial hemisphere near several other constellations named after legends surrounding Perseus, including Andromeda to the west and Cassiopeia to the north. Perseus is also bordered by Aries and Taurus to the south, Auriga to the east, Camelopardalis to the north, and Triangulum to the west.The galactic plane of the Milky Way passes through Perseus but is mostly obscured by molecular clouds. The constellation's brightest star is the yellow-white supergiant Alpha Persei (also called Mirfak), which shines at magnitude 1.79. It and many of the surrounding stars are members of an open cluster known as the Alpha Persei Cluster. The best-known star, however, is Algol (Beta Persei), linked with ominous legends because of its variability, which is noticeable to the naked eye. Rather than being an intrinsically variable star, it is an eclipsing binary. Other notable star systems in Perseus include X Persei, a binary system containing a neutron star, and GK Persei, a nova that peaked at magnitude 0.2 in 1901. The Double Cluster, comprising two open clusters quite near each other in the sky, was known to the ancient Chinese. The constellation gives its name to the Perseus Cluster (Abell 426), a massive galaxy cluster located 250 million light-years from Earth. It hosts the radiant of the annual Perseids meteor shower—one of the most prominent meteor showers in the sky.