ph709-10
... et al. 2006; Ikoma et al. 2006). Understanding how the transiting planet massradius relations change as a function of orbital distance, stellar mass, stellar metallicity, or UV flux, will provide insight into the fundamentals of planetary formation, migration, and evolution. The transit method of pl ...
... et al. 2006; Ikoma et al. 2006). Understanding how the transiting planet massradius relations change as a function of orbital distance, stellar mass, stellar metallicity, or UV flux, will provide insight into the fundamentals of planetary formation, migration, and evolution. The transit method of pl ...
m/s
... Conclusion: Photometric space-based observations show evidence for radial and non-radial modes in giant stars ...
... Conclusion: Photometric space-based observations show evidence for radial and non-radial modes in giant stars ...
ppt
... Short period M dwarfs are very active and we would have seen Ca II emission from the binary stars and X-ray emission ...
... Short period M dwarfs are very active and we would have seen Ca II emission from the binary stars and X-ray emission ...
A. Some review questions. There are also four
... 6. What is one surprising result of the planet detections made so far? a. Most of the orbits are so nearly circular. b. The planets are so much more massive than Jupiter. c. So few of the planets are much smaller than Jupiter. d. The orbital sizes (semimajor axes) of many of the planets are so small ...
... 6. What is one surprising result of the planet detections made so far? a. Most of the orbits are so nearly circular. b. The planets are so much more massive than Jupiter. c. So few of the planets are much smaller than Jupiter. d. The orbital sizes (semimajor axes) of many of the planets are so small ...
Document
... the Solar System (Jupiter and Saturn). • In the next 10 years at least 3 space borne missions will open up new horizons in this field. More than 30 are currently underway. ...
... the Solar System (Jupiter and Saturn). • In the next 10 years at least 3 space borne missions will open up new horizons in this field. More than 30 are currently underway. ...
Mamajek
... mass companion” 2M1207b - it is either way too hot or way to dim. Why? We are using MMT/AO + Clio imaging in the thermal IR to search for planets around nearby stars (so far no detections). Apodized phase plate optic is allowing us to probe at smaller orbital radii (~0.5”; ~5 AU @ 10 pc) ...
... mass companion” 2M1207b - it is either way too hot or way to dim. Why? We are using MMT/AO + Clio imaging in the thermal IR to search for planets around nearby stars (so far no detections). Apodized phase plate optic is allowing us to probe at smaller orbital radii (~0.5”; ~5 AU @ 10 pc) ...
Looking for Extra
... Astrometric results are biased towards finding large planets with long periods, but now Doppler methods were biasing towards ‘hot Jupiters’ – large planets with short periods. Theoreticians debated the ‘natural’ progress of solar system evolution. The discovery of retrograde and highly inclined hot- ...
... Astrometric results are biased towards finding large planets with long periods, but now Doppler methods were biasing towards ‘hot Jupiters’ – large planets with short periods. Theoreticians debated the ‘natural’ progress of solar system evolution. The discovery of retrograde and highly inclined hot- ...
Alien Earths Floorplan (3,000 sq. ft) Major Exhibit Areas
... • Since the mass of a star is so much greater than the mass of a planet, the “center of mass” (i.e. “balance point”) is located close to (but not at the center) of the parent star. • This means that stars with planets in orbit around them are not stationary. Rather, they move slightly about this bal ...
... • Since the mass of a star is so much greater than the mass of a planet, the “center of mass” (i.e. “balance point”) is located close to (but not at the center) of the parent star. • This means that stars with planets in orbit around them are not stationary. Rather, they move slightly about this bal ...
Chapter 19 Notes
... Formation and Growth of Planetesimals A. Planet formation starts with clumping together of grains of _______________ matter: Planetesimals B. Planetesimals (few cm to _________ in size) collide to form ______________. C. Planetesimal growth through _________________ (particles of about the same size ...
... Formation and Growth of Planetesimals A. Planet formation starts with clumping together of grains of _______________ matter: Planetesimals B. Planetesimals (few cm to _________ in size) collide to form ______________. C. Planetesimal growth through _________________ (particles of about the same size ...
Universe 8e Lecture Chapter 8 Origin of Our Solar System
... began as rocky protoplanetary cores, similar in character to the terrestrial planets. Gas then accreted onto these cores in a runaway fashion. ...
... began as rocky protoplanetary cores, similar in character to the terrestrial planets. Gas then accreted onto these cores in a runaway fashion. ...
The Origin of Our Solar System II The Origin of Our Solar System II
... began as rocky protoplanetary cores, similar in character to the terrestrial planets. Gas then accreted onto these cores in a runaway fashion. ...
... began as rocky protoplanetary cores, similar in character to the terrestrial planets. Gas then accreted onto these cores in a runaway fashion. ...
Can TMT Image Habitable Planets ?
... Habitable planets can be imaged on ELTs (physics and nature are on our side) ELTs can operate at ~1e-5/1e-6 raw contrast and photon-noise limited detection limit → characterization (spectroscopy) of 1e-8 habitable planets accessible around dozens of nearby stars, mainly near-IR/visible Ideal targets ...
... Habitable planets can be imaged on ELTs (physics and nature are on our side) ELTs can operate at ~1e-5/1e-6 raw contrast and photon-noise limited detection limit → characterization (spectroscopy) of 1e-8 habitable planets accessible around dozens of nearby stars, mainly near-IR/visible Ideal targets ...
Proper Motion of a Star
... Proper motion is generally measured by taking photographs several years apart and measuring the movement of the image of a star with respect to more distant background stars over that time period. Usually decades must elapse between successive photographs before a reliable measurement can be made. T ...
... Proper motion is generally measured by taking photographs several years apart and measuring the movement of the image of a star with respect to more distant background stars over that time period. Usually decades must elapse between successive photographs before a reliable measurement can be made. T ...
Document
... When we look at other star systems, one of the first things we look for is what’s called the “habitable zone”. This is the area in the star system where you’d be just the right distance for water to be liquid. Why? Because it might mean a planet like Earth that we could someday colonize. So what fac ...
... When we look at other star systems, one of the first things we look for is what’s called the “habitable zone”. This is the area in the star system where you’d be just the right distance for water to be liquid. Why? Because it might mean a planet like Earth that we could someday colonize. So what fac ...
The Origin of the Solar System
... is the largest and most massive) Rocky (solid) surface Relatively dense: 3.3 – 5.5 g/cm3 ...
... is the largest and most massive) Rocky (solid) surface Relatively dense: 3.3 – 5.5 g/cm3 ...
Extrasolar Planets - Astrophysikalisches Institut und Universitäts
... around the object. If such an Einstein ring is not resolved spatially due to small mass and/or small angular resolution, one would still see the background object being brightened by the foreground object, the gravitational lense. Such an event is called microlensing. If a binary lense (e.g. a star ...
... around the object. If such an Einstein ring is not resolved spatially due to small mass and/or small angular resolution, one would still see the background object being brightened by the foreground object, the gravitational lense. Such an event is called microlensing. If a binary lense (e.g. a star ...
Meet the Neighbors: Planets Around Nearby Stars
... small to see even with today’s powerful telescopes, the repeated wobbling of the star, backward and forward as it and the planet orbit about their common center of gravity, provides evidence beyond doubt that 51 Pegasi does not wander through the galaxy alone. Like our Sun, it is attended by at leas ...
... small to see even with today’s powerful telescopes, the repeated wobbling of the star, backward and forward as it and the planet orbit about their common center of gravity, provides evidence beyond doubt that 51 Pegasi does not wander through the galaxy alone. Like our Sun, it is attended by at leas ...
Stars in Motion
... The image contains two spectra; the image of one spectrum is horizontally cut in half by the other. The thin, light colored band running down the horizontal centerline of the image is the absorption spectrum of the (spectral type A) star being observed. Dark vertical lines in this band represent abs ...
... The image contains two spectra; the image of one spectrum is horizontally cut in half by the other. The thin, light colored band running down the horizontal centerline of the image is the absorption spectrum of the (spectral type A) star being observed. Dark vertical lines in this band represent abs ...
Dorn_projectF08 - Bowling Green State University
... changing appearance of its surface. The Moon orbits at roughly 380,000 km. distance with a diameter of 3475 km., compared to Earth it is 27% smaller with a reflection magnitude at opposition of -12.7. The best views through a telescope are between the crescent and quarter phases when angled light fr ...
... changing appearance of its surface. The Moon orbits at roughly 380,000 km. distance with a diameter of 3475 km., compared to Earth it is 27% smaller with a reflection magnitude at opposition of -12.7. The best views through a telescope are between the crescent and quarter phases when angled light fr ...
XII. Astronomy: Exoplanets and the Celestial Sphere
... number of planets ---hopefully, even some terrestrial ones. E. The existence of free-floating planets is probable. (However, because they don’t orbit a star, they are not really “planets” in the conventional sense of the word). 1. Some planets are ejected from planetary system during gravitational i ...
... number of planets ---hopefully, even some terrestrial ones. E. The existence of free-floating planets is probable. (However, because they don’t orbit a star, they are not really “planets” in the conventional sense of the word). 1. Some planets are ejected from planetary system during gravitational i ...
Teachers notes - detecting and characterising
... In fact, since we do not know exactly how the plane of the exoplanet system is orientated relative to our telescope, we cannot calculate the exact mass of a planet discovered by the ...
... In fact, since we do not know exactly how the plane of the exoplanet system is orientated relative to our telescope, we cannot calculate the exact mass of a planet discovered by the ...
In this lecture tutorial we will investigate the relationship between
... directly toward us, then the light from the star we observe will be blueshifted. Student 2: I disagree, the light from the star will be redshifted because the star is moving the opposite direction the planet is moving. Do you agree or disagree with either or both of the students? Why? ...
... directly toward us, then the light from the star we observe will be blueshifted. Student 2: I disagree, the light from the star will be redshifted because the star is moving the opposite direction the planet is moving. Do you agree or disagree with either or both of the students? Why? ...
Looking for Other Worlds
... powered by H fusion; formed by gravitational collapse, occur singly or in multiples Brown Dwarf: 13 jup < mass < 80 jup, some initial D fusion, then fade; formation and occurrence as normal stars Planets: < 13 jup, no nuclear power source; formed by accretion from protoplanetary disc left behind ...
... powered by H fusion; formed by gravitational collapse, occur singly or in multiples Brown Dwarf: 13 jup < mass < 80 jup, some initial D fusion, then fade; formation and occurrence as normal stars Planets: < 13 jup, no nuclear power source; formed by accretion from protoplanetary disc left behind ...
Searching for Planets Around Other Stars
... In our Solar System, the planetary orbits have low eccentricities (with the exception of Pluto). This is a natural consequence of planet formation. This is what we expected for other planetary systems. ...
... In our Solar System, the planetary orbits have low eccentricities (with the exception of Pluto). This is a natural consequence of planet formation. This is what we expected for other planetary systems. ...
Tau Ceti
Tau Ceti (τ Cet, τ Ceti) is a star in the constellation Cetus that is spectrally similar to the Sun, although it has only about 78% of the Sun's mass. At a distance of just under 12 light-years from the Solar System, it is a relatively nearby star, and is the closest solitary G-class star. The star appears stable, with little stellar variation, and is metal-deficient.Observations have detected more than ten times as much dust surrounding Tau Ceti as is present in the Solar System. Since December 2012, there has been evidence of possibly five planets orbiting Tau Ceti, with two of these being potentially in the habitable zone. Because of its debris disk, any planet orbiting Tau Ceti would face far more impact events than Earth. Despite this hurdle to habitability, its solar analog (Sun-like) characteristics have led to widespread interest in the star. Given its stability, similarity and relative proximity to the Sun, Tau Ceti is consistently listed as a target for the Search for Extra-Terrestrial Intelligence (SETI), and it appears in some science fiction literature.It can be seen with the unaided eye as a third-magnitude star. As seen from Tau Ceti, the Sun would be a third-magnitude star in the constellation Boötes.