Unit 1 test review and answer key 16
... ____ 11. Asteroids and comets move along the ecliptic in the same way as the planets do. ____ 12. The Jovian planets are Mars, Jupiter, Uranus, and Neptune. ____ 13. The terrestrial planets are larger in size and have larger orbits than the Jovian planets. ____ 14. The diameter of the Sun is about 1 ...
... ____ 11. Asteroids and comets move along the ecliptic in the same way as the planets do. ____ 12. The Jovian planets are Mars, Jupiter, Uranus, and Neptune. ____ 13. The terrestrial planets are larger in size and have larger orbits than the Jovian planets. ____ 14. The diameter of the Sun is about 1 ...
white dwarfs and the age of the universe
... There is now a broad opinion that the distinction among the character DA and non–DA is inherited (i.e., it is linked to the origin of the white dwarf itself) although a fraction of them can change their external aspect during the evolution [10]. Standard evolution theory predicts that typical field ...
... There is now a broad opinion that the distinction among the character DA and non–DA is inherited (i.e., it is linked to the origin of the white dwarf itself) although a fraction of them can change their external aspect during the evolution [10]. Standard evolution theory predicts that typical field ...
High ions towards white dwarfs: circumstellar line shifts and stellar
... Aims. Our aim is to gain new insights into highly ionized gas towards nearby hot white dwarfs (WDs). The detection of absorption lines of highly ionized interstellar (IS) species in their spectra is the main diagnostic tool of the hot IS gas phase. This requires disentangling IS ions from photospher ...
... Aims. Our aim is to gain new insights into highly ionized gas towards nearby hot white dwarfs (WDs). The detection of absorption lines of highly ionized interstellar (IS) species in their spectra is the main diagnostic tool of the hot IS gas phase. This requires disentangling IS ions from photospher ...
Chapter 1 Telescopes 1.1 Lenses
... area of the virtual image is unchanged. Warning! Never view the Sun using a telescope or directly. The intensity of sunlight entering the eye would damage the retina of the eye and cause blindness. ...
... area of the virtual image is unchanged. Warning! Never view the Sun using a telescope or directly. The intensity of sunlight entering the eye would damage the retina of the eye and cause blindness. ...
The High Eccentricity of the Planet Around 16 Cyg B
... two stars are physically connected. Both features are very intriguing. Prior to the discovery of 16 Cyg B planet, Mazeh, Mayor & Latham (1996) pointed out that the other seven ”planet-candidates” display a correlation between their masses and orbital eccentricities. Companions with masses smaller th ...
... two stars are physically connected. Both features are very intriguing. Prior to the discovery of 16 Cyg B planet, Mazeh, Mayor & Latham (1996) pointed out that the other seven ”planet-candidates” display a correlation between their masses and orbital eccentricities. Companions with masses smaller th ...
Chapter 18 - Astro1010
... star out of equilibrium and it starts to shrink, but it has much heat to dissipate from the Helium Flash. The result is the surface gets smaller as the surface temperature gets higher, causing movement across the graph toward the blue while maintaining nearly the same ...
... star out of equilibrium and it starts to shrink, but it has much heat to dissipate from the Helium Flash. The result is the surface gets smaller as the surface temperature gets higher, causing movement across the graph toward the blue while maintaining nearly the same ...
What CAN You See With a Telescope?
... planets. Since the asteroids were thought to be “minor planets,” it was assumed that they also rotated on their own axes. In 1810, Schröeter 6 thought Juno had a 27hour rotation rate. This is about four times the current value of 7.21 hours. An asteroid’s rotation rate is determined by measurin ...
... planets. Since the asteroids were thought to be “minor planets,” it was assumed that they also rotated on their own axes. In 1810, Schröeter 6 thought Juno had a 27hour rotation rate. This is about four times the current value of 7.21 hours. An asteroid’s rotation rate is determined by measurin ...
A Spitzer mid-infrared spectral survey of mass
... The (M K , J − K ) diagram in Fig. 1(a) shows most of the AGB stars which are known to be mid-IR point sources in the LMC. Also shown is a representative sample of the much more numerous field stars without thick dust shells. The most numerous stars in any stellar population are low-mass stars. In F ...
... The (M K , J − K ) diagram in Fig. 1(a) shows most of the AGB stars which are known to be mid-IR point sources in the LMC. Also shown is a representative sample of the much more numerous field stars without thick dust shells. The most numerous stars in any stellar population are low-mass stars. In F ...
Using time to measure distance - AS-A2
... 11. In the 1920s. Vesto Slipher and Edwin Hubble gathered data that showed that distant galaxies are all moving away from us and that the speed at which they are moving away is directly proportional to their distance. How do cosmologists account for these observations? ...
... 11. In the 1920s. Vesto Slipher and Edwin Hubble gathered data that showed that distant galaxies are all moving away from us and that the speed at which they are moving away is directly proportional to their distance. How do cosmologists account for these observations? ...
PowerSeeker 80 EQ Manual
... If you wear corrective lenses (specifically glasses), you may want to remove them when observing with an eyepiece attached to the telescope. However, when using a camera you should always wear corrective lenses to ensure the sharpest possible focus. If you have astigmatism, corrective lenses must be ...
... If you wear corrective lenses (specifically glasses), you may want to remove them when observing with an eyepiece attached to the telescope. However, when using a camera you should always wear corrective lenses to ensure the sharpest possible focus. If you have astigmatism, corrective lenses must be ...
New results on a Cn2 profiler for GeMS
... are seen in the WFS, producing a light contamination known as the fratricide effect (see figure 5). The right image corresponds to the RMS of the centroid data taken on sky. Sub-apertures affected by the fratricide have a much lower variance than properly illuminated ones. In addition to the fratric ...
... are seen in the WFS, producing a light contamination known as the fratricide effect (see figure 5). The right image corresponds to the RMS of the centroid data taken on sky. Sub-apertures affected by the fratricide have a much lower variance than properly illuminated ones. In addition to the fratric ...
W. M. White Geochemistry Chapter 10: Cosmochemistry
... we learn about the evolution of the Earth by examining old rocks, we can learn about the evolution of the cosmos by looking at old stars. The old stars of Population II are considerably poorer in heavy elements than are young stars. In particular, Population II stars have a Fe/H ratio typically a fa ...
... we learn about the evolution of the Earth by examining old rocks, we can learn about the evolution of the cosmos by looking at old stars. The old stars of Population II are considerably poorer in heavy elements than are young stars. In particular, Population II stars have a Fe/H ratio typically a fa ...
Chap2-RadialVelocity
... mass) defined as where M and a refers to the mass and semi-major axis, respectively. (Notation: subscript p for planet and ★ for the host star; arel is used for a planet orbit relative to the star) Reflex motion results in periodic perturbation of: radial velocity, angular position on the sky, and ...
... mass) defined as where M and a refers to the mass and semi-major axis, respectively. (Notation: subscript p for planet and ★ for the host star; arel is used for a planet orbit relative to the star) Reflex motion results in periodic perturbation of: radial velocity, angular position on the sky, and ...
Document
... Stars in cluster ellipticals are old, there seems little doubt, and they also appear to be assembled into mature galaxies very early. But, cluster ellipticals are rarer than those in lower-density environments -- are these “field” ellipticals really all that different (stellar age, assembly age) fr ...
... Stars in cluster ellipticals are old, there seems little doubt, and they also appear to be assembled into mature galaxies very early. But, cluster ellipticals are rarer than those in lower-density environments -- are these “field” ellipticals really all that different (stellar age, assembly age) fr ...
exoplanet observing for amateurs
... Institute, STScI. The XO project has announced the discovery of three exoplanets, XO-1b, XO-2b and XO-3b. All members of the XO team are co-authors of the announcement publications in the Astrophysical Journal. I have worked with fellow ET members for 2.5 years, and I am familiar with the issues tha ...
... Institute, STScI. The XO project has announced the discovery of three exoplanets, XO-1b, XO-2b and XO-3b. All members of the XO team are co-authors of the announcement publications in the Astrophysical Journal. I have worked with fellow ET members for 2.5 years, and I am familiar with the issues tha ...
Stellar populations in the nuclear regions of nearby radio galaxies
... CuAr+CuNe exposure per spectral region and telescope position was also obtained for all objects. The total integration times for the radio galaxies (from 1–3 hrÞ were split into time intervals of about 1200 or 1800 s in order to diminish the effect of cosmic rays on individual frames and to allow us ...
... CuAr+CuNe exposure per spectral region and telescope position was also obtained for all objects. The total integration times for the radio galaxies (from 1–3 hrÞ were split into time intervals of about 1200 or 1800 s in order to diminish the effect of cosmic rays on individual frames and to allow us ...
Sample pages 1 PDF
... objects outside our galaxy don’t figure much this season, with a few notable exceptions such as the Andromeda Galaxy. Suburban astronomers will find winter a particularly good time of the year for deep sky observing. The objects visible during this season are mostly those that are either unaffected ...
... objects outside our galaxy don’t figure much this season, with a few notable exceptions such as the Andromeda Galaxy. Suburban astronomers will find winter a particularly good time of the year for deep sky observing. The objects visible during this season are mostly those that are either unaffected ...
Stars and Planets Credits and Acknowledgements
... NASA’s exploration of the cosmos is highlighted in multiple lessons along with cuttingedge science. New Horizons is introduced in the Scale Model Solar System lesson and the Kepler Mission, a distribution partner for Stars and Planets, is highlighted in Planet Hunting. Three of the lessons feature s ...
... NASA’s exploration of the cosmos is highlighted in multiple lessons along with cuttingedge science. New Horizons is introduced in the Scale Model Solar System lesson and the Kepler Mission, a distribution partner for Stars and Planets, is highlighted in Planet Hunting. Three of the lessons feature s ...
Lecture 8: Spiral Structure
... more star formation, and so on. A simple analogy is a forest fire, with the flames jumping from one tree to the next. Thus, the formation of new stars is confined to areas where this process is taking place. Now differential rotation enters this picture. Computer analysis shows that at the rate at w ...
... more star formation, and so on. A simple analogy is a forest fire, with the flames jumping from one tree to the next. Thus, the formation of new stars is confined to areas where this process is taking place. Now differential rotation enters this picture. Computer analysis shows that at the rate at w ...
M sin i
... • A few of them transit in front of their parent stars • Importance of transiting extrasolar planets: they give R, i r ...
... • A few of them transit in front of their parent stars • Importance of transiting extrasolar planets: they give R, i r ...
A spectroscopic investigation of the O
... the literature (especially the older papers) often does not specify on which spectral line the radial velocities (RVs) were measured. Therefore, large differences can be observed between RVs measured on two different lines of a presumably single star. This can lead to some overdeterminations of the sp ...
... the literature (especially the older papers) often does not specify on which spectral line the radial velocities (RVs) were measured. Therefore, large differences can be observed between RVs measured on two different lines of a presumably single star. This can lead to some overdeterminations of the sp ...