Document
... The glint’s flux difference in the two polarizations is 0.15 photons per second for a 10-m telescope observing Earth-Sun system at 10 pc. Long integrations (days) can pick out the polarized light from an oceanic planet in the glare of the star. One hour integration gives Poisson S/N ~ 20 if star lig ...
... The glint’s flux difference in the two polarizations is 0.15 photons per second for a 10-m telescope observing Earth-Sun system at 10 pc. Long integrations (days) can pick out the polarized light from an oceanic planet in the glare of the star. One hour integration gives Poisson S/N ~ 20 if star lig ...
Mountain Skies
... Finally, to the east is the longest zodiac constellation, Virgo the maiden. We usually envision Virgo as Ceres the goddess of the harvest. We get our English word “cereal” from her name. She holds some wheat or corn i ...
... Finally, to the east is the longest zodiac constellation, Virgo the maiden. We usually envision Virgo as Ceres the goddess of the harvest. We get our English word “cereal” from her name. She holds some wheat or corn i ...
ISO Adds a Critical Ingredient to the Jovian Planet
... How and over what time scales are planets assembled? Until the recent discovery of extrasolar planets by radial velocity techniques, among the strongest cases for planetary systems outside our own were the dusty ‘debris’ disks detected around young stars such as Vega and Pictoris. Now, a team led ...
... How and over what time scales are planets assembled? Until the recent discovery of extrasolar planets by radial velocity techniques, among the strongest cases for planetary systems outside our own were the dusty ‘debris’ disks detected around young stars such as Vega and Pictoris. Now, a team led ...
PISGAH Text by Dr. Bob Hayward ASTRONOMICAL Astronomer
... giant planet as our “Evening Star.” Shortly before 9 p.m. the bright Mars rises in the east. We don’t normally refer to Mars as “bright” although it is a naked eye planet. However, Mars is moving closer to us and on May 30 it will be at its closest for this time around the sun, a mere 46.8 million m ...
... giant planet as our “Evening Star.” Shortly before 9 p.m. the bright Mars rises in the east. We don’t normally refer to Mars as “bright” although it is a naked eye planet. However, Mars is moving closer to us and on May 30 it will be at its closest for this time around the sun, a mere 46.8 million m ...
Doppler spectroscopy as a path to the detection of Earth
... determine precise stellar radial velocities. On the one hand, spectrographs with absorption cells in the beam of the spectrograph (hydrogen-fluoride cell or iodine cell)14,15, and on the other hand, fibre-fed spectrographs with simultaneous calibration provided by a thorium lamp in a parallel fibre1 ...
... determine precise stellar radial velocities. On the one hand, spectrographs with absorption cells in the beam of the spectrograph (hydrogen-fluoride cell or iodine cell)14,15, and on the other hand, fibre-fed spectrographs with simultaneous calibration provided by a thorium lamp in a parallel fibre1 ...
Astronomy Assignment #8 Exoplanets II
... the answer to part c of this series of questions. If HD 166724 b had an Earth-like planet orbiting it at 1.0 AU from the star, its orbit would be very close to the perihelion distance of one of its other planets (assume it is of Jovian mass). This is a very unstable situation and the assumedly small ...
... the answer to part c of this series of questions. If HD 166724 b had an Earth-like planet orbiting it at 1.0 AU from the star, its orbit would be very close to the perihelion distance of one of its other planets (assume it is of Jovian mass). This is a very unstable situation and the assumedly small ...
GAIA and astrometry of giant planets
... Gaia and Extrasolar planets - II Large Double Blind Test campaign on more than 160,000 systems for detection and characterization of planets utilizing only astrometric observations (Casertano, Lattanzi, Sozzetti et al., AA, 2008). Different teams for systems simulation, fitting (especially) , and ...
... Gaia and Extrasolar planets - II Large Double Blind Test campaign on more than 160,000 systems for detection and characterization of planets utilizing only astrometric observations (Casertano, Lattanzi, Sozzetti et al., AA, 2008). Different teams for systems simulation, fitting (especially) , and ...
SeagerGUASAII - Sara Seager
... (for high magnification events) – Actual mass of star and planet, and planet semimajor axis are discernable with high magnification ...
... (for high magnification events) – Actual mass of star and planet, and planet semimajor axis are discernable with high magnification ...
Unit 2 Ecology Chp 4 Ecosystems and Communities
... Below is a diagram of “niche partitioning” or what is also known as the “competitive exclusion principle”. This concept allows one Spruce tree to support 5 different species of Warblers. 13. Using the concept of this principle, explain how the Spruce tree can support 5 different species of birds. ...
... Below is a diagram of “niche partitioning” or what is also known as the “competitive exclusion principle”. This concept allows one Spruce tree to support 5 different species of Warblers. 13. Using the concept of this principle, explain how the Spruce tree can support 5 different species of birds. ...
The Transit Method
... extrasolar planets with both well-determined masses and radii for which the values are less than those for the ice giants of the Solar System. Despite their indistinguishable masses, these two planets probably have very different compositions. Predicted16 radii as a function of mass are shown for as ...
... extrasolar planets with both well-determined masses and radii for which the values are less than those for the ice giants of the Solar System. Despite their indistinguishable masses, these two planets probably have very different compositions. Predicted16 radii as a function of mass are shown for as ...
TrES-1: The transiting planet of a bright K0V star
... low signal-to-noise radial velocity observations. In the next sections we describe the more detailed observations that were carried out on this candidate, that led to the first transiting planet discovered by a wide-field survey. ...
... low signal-to-noise radial velocity observations. In the next sections we describe the more detailed observations that were carried out on this candidate, that led to the first transiting planet discovered by a wide-field survey. ...
Looking inside stars and looking for planets
... a range of ages, masses and luminosities, and on the potential use of colour information. The final talk of the day was by Richard Nelson (Queen Mary, University of London) who spoke about recent theoretical work on the formation of terrestrial and gas-giant planets, and summarized the likely impact ...
... a range of ages, masses and luminosities, and on the potential use of colour information. The final talk of the day was by Richard Nelson (Queen Mary, University of London) who spoke about recent theoretical work on the formation of terrestrial and gas-giant planets, and summarized the likely impact ...
Planet Searches at Caltech (not a review)
... Current approach demonstrably works but achieved precision is 20 m/s Next step: Combine best of both worlds ...
... Current approach demonstrably works but achieved precision is 20 m/s Next step: Combine best of both worlds ...
From Hot Jupiters to Hot Neptunes and Below
... a dimming proportional to the surface of the transiting planet. This offers a very straightforward means of detecting exoplanets and measuring their size. Further radial velocity monitoring can then reveal the other orbital parameters and the planet mass. Detecting transiting exoplanets is therefore ...
... a dimming proportional to the surface of the transiting planet. This offers a very straightforward means of detecting exoplanets and measuring their size. Further radial velocity monitoring can then reveal the other orbital parameters and the planet mass. Detecting transiting exoplanets is therefore ...
New Planet Nine AOW
... Directions: Read the following article carefully and annotate. You need to include at least 1 annotation per paragraph. Be sure to include all of the following in your total annotations. Annotation = Marking the Text + A Note of Explanation 1. Great Idea or Point – Write why you think it is a good i ...
... Directions: Read the following article carefully and annotate. You need to include at least 1 annotation per paragraph. Be sure to include all of the following in your total annotations. Annotation = Marking the Text + A Note of Explanation 1. Great Idea or Point – Write why you think it is a good i ...
ph507-16-1exo3
... planet-metallicity correlation at all stellar masses; this argues that the high metallicities of stars with planets is not likely due to convective envelope "pollution." BUT: Neptune-mass planets form preferentially around metal-poor stars, in contrast to stars with giant planets 3) Some planet have ...
... planet-metallicity correlation at all stellar masses; this argues that the high metallicities of stars with planets is not likely due to convective envelope "pollution." BUT: Neptune-mass planets form preferentially around metal-poor stars, in contrast to stars with giant planets 3) Some planet have ...
Chapter 1 - High Point University
... What are terrestrial planets like on the inside? What causes geological activity? Why do some planetary interiors create magnetic fields? What processes shape planetary surfaces? How do impact craters reveal a surface’s geological age? Why do the terrestrial planets have different geological histori ...
... What are terrestrial planets like on the inside? What causes geological activity? Why do some planetary interiors create magnetic fields? What processes shape planetary surfaces? How do impact craters reveal a surface’s geological age? Why do the terrestrial planets have different geological histori ...
Activity Book Level 3
... Sun’s surface. This energy (heat and light) is what lights our days, drives our weather and allows life on Earth to exist. Sunspots have been observed for hundreds of years and they have given us interesting insights into the Sun’s activity and its long term cycles. Sunspots are cooler regions on th ...
... Sun’s surface. This energy (heat and light) is what lights our days, drives our weather and allows life on Earth to exist. Sunspots have been observed for hundreds of years and they have given us interesting insights into the Sun’s activity and its long term cycles. Sunspots are cooler regions on th ...
HARPS Observes the Earth Transiting the Sun — A Method to
... of long, tangential pathlengths through their atmospheres. Since the fraction of the observed stellar light taking these paths is very small, transit photometric and spectrophotometric measurements of light curves require very high levels of measurement stability, favouring the use of intrinsically ...
... of long, tangential pathlengths through their atmospheres. Since the fraction of the observed stellar light taking these paths is very small, transit photometric and spectrophotometric measurements of light curves require very high levels of measurement stability, favouring the use of intrinsically ...
May 2014 Night Sky - Explore More - At
... Astronomers using a special planet-finding telescope have discovered a distant world orbiting in the “habitable zone” of its star — where temperatures are just right for liquid water. The planet, called Kepler-186f, is thought to be rocky, and a similar size to the Earth. This raises the tantalising ...
... Astronomers using a special planet-finding telescope have discovered a distant world orbiting in the “habitable zone” of its star — where temperatures are just right for liquid water. The planet, called Kepler-186f, is thought to be rocky, and a similar size to the Earth. This raises the tantalising ...
Jupiter WS
... partially permanent feature of the huge planet. This Red Spot is cooler than the areas that look orange and brown. It rotates in an east to west direction once every six days. Small almost oval white spots rotate counterclockwise also. White bands are cooler and less deep than those that appear oran ...
... partially permanent feature of the huge planet. This Red Spot is cooler than the areas that look orange and brown. It rotates in an east to west direction once every six days. Small almost oval white spots rotate counterclockwise also. White bands are cooler and less deep than those that appear oran ...
Young Brown Dwarfs & Giant Planets: Recent Models and
... in star forming regions and around nearby stars. 1988 – Becklin & Zuckerman discover the first L dwarf (GD 165-B), a likely brown dwarf 1990 – First brown dwarf confirmed (Teide 1, SpT M8, Pleiades cluster) 1993 – Wolszczan discovers a planet around a pulsar (PSR 1257+12) 1995+ - Many RV discoveries ...
... in star forming regions and around nearby stars. 1988 – Becklin & Zuckerman discover the first L dwarf (GD 165-B), a likely brown dwarf 1990 – First brown dwarf confirmed (Teide 1, SpT M8, Pleiades cluster) 1993 – Wolszczan discovers a planet around a pulsar (PSR 1257+12) 1995+ - Many RV discoveries ...
Super-Earth
A super-Earth is an extrasolar planet with a mass higher than Earth's, but substantially below the mass of the Solar System's ice giants Uranus and Neptune, which are 15 and 17 Earth masses respectively. The term super-Earth refers only to the mass of the planet, and does not imply anything about the surface conditions or habitability. The alternative term ""gas dwarfs"" may be more accurate for those at the higher end of the mass scale, as suggested by MIT professor Sara Seager, although mini-Neptunes is more common.