Habitable worlds with JWST: transit spectroscopy of the TRAPPIST
... them could have an Earth-like atmosphere. NEMESIS couples a fast correlated-k (Goody & Yung 1989; Lacis & Oinas 1991) radiative transfer model with an optimal estimation retrieval algorithm (Rodgers 2000). It has been extensively used to model both exoplanets and solar system worlds (e.g. Lee et al. ...
... them could have an Earth-like atmosphere. NEMESIS couples a fast correlated-k (Goody & Yung 1989; Lacis & Oinas 1991) radiative transfer model with an optimal estimation retrieval algorithm (Rodgers 2000). It has been extensively used to model both exoplanets and solar system worlds (e.g. Lee et al. ...
Duncan Wright
... To be capable of detecting the <10 m s-1 Doppler amplitudes expected from habitable zone planets around M Dwarfs we need to be able to calibrate the UCLES spectrograph to < 2 m s-1. This is possible with CYCLOPS due to the tremendous amount of position information available when we take a calibratio ...
... To be capable of detecting the <10 m s-1 Doppler amplitudes expected from habitable zone planets around M Dwarfs we need to be able to calibrate the UCLES spectrograph to < 2 m s-1. This is possible with CYCLOPS due to the tremendous amount of position information available when we take a calibratio ...
Solutions3
... Problem 1: The star Mizar in the Big Dipper was the first binary system to be observed (Benedetto Castelli asked Galileo to observe it in 1617, presumably to confirm his observations of this double star)–though not the first where orbital motion was observed. The parallax angle to Mizar is 4.2 × 10− ...
... Problem 1: The star Mizar in the Big Dipper was the first binary system to be observed (Benedetto Castelli asked Galileo to observe it in 1617, presumably to confirm his observations of this double star)–though not the first where orbital motion was observed. The parallax angle to Mizar is 4.2 × 10− ...
Testing
... • We cannot measure an exact mass for a planet without knowing the tilt of its orbit, because Doppler shift tells us only the velocity toward or away from us • Doppler data gives us lower limits on masses ...
... • We cannot measure an exact mass for a planet without knowing the tilt of its orbit, because Doppler shift tells us only the velocity toward or away from us • Doppler data gives us lower limits on masses ...
View PDF - Sara Seager
... liquid surface water at some point in the past. Most exoplanet habitable-zone research that folThe search for exoplanets includes the promise to eventually find and identify habitable worlds. The lowed continued to focus on terrestrial-like planet thousands of known exoplanets and planet candidates ...
... liquid surface water at some point in the past. Most exoplanet habitable-zone research that folThe search for exoplanets includes the promise to eventually find and identify habitable worlds. The lowed continued to focus on terrestrial-like planet thousands of known exoplanets and planet candidates ...
The Solar System Interplanetary Matter and the Birth of the Planets
... condense at the low temperatures Why are they gaseous? – gas and ices are present at that distance Why are they bigger? - accretion onto the planet starts sooner because they are further from the Sun, less affected by solar wind . The collapse of the giant planets produces a core of about 10 Earth’s ...
... condense at the low temperatures Why are they gaseous? – gas and ices are present at that distance Why are they bigger? - accretion onto the planet starts sooner because they are further from the Sun, less affected by solar wind . The collapse of the giant planets produces a core of about 10 Earth’s ...
Return Visit Optimization for Planet Finding
... • In most cases, there is a well defined region, describable by apparent magnitude, where the various strategies cross and one is clearly better than another. For example, at V = 5 better results are consistently achieved when returning after 1 estimated orbital period than after 1/2 period. • While ...
... • In most cases, there is a well defined region, describable by apparent magnitude, where the various strategies cross and one is clearly better than another. For example, at V = 5 better results are consistently achieved when returning after 1 estimated orbital period than after 1/2 period. • While ...
Test - Scioly.org
... This object is one of the most studied objects in the night sky and has been crucial in understanding star and planetary system formation. a. List the number of this object. b. Name two alternate designations of this object. c. What is the name for the four massive stars at the center of this object ...
... This object is one of the most studied objects in the night sky and has been crucial in understanding star and planetary system formation. a. List the number of this object. b. Name two alternate designations of this object. c. What is the name for the four massive stars at the center of this object ...
Proxima b
... Obviously it would need water and a source of energy. Astronomers already knew the luminosity of Proxima Centauri and now the distance to the planet so can work out the temperature on its surface. Assuming that Proxima b reflects as much starlight as Earth does, it would have a global mean surface t ...
... Obviously it would need water and a source of energy. Astronomers already knew the luminosity of Proxima Centauri and now the distance to the planet so can work out the temperature on its surface. Assuming that Proxima b reflects as much starlight as Earth does, it would have a global mean surface t ...
Presentation
... Exoplanets are confirmed by observing several transits that have the same decrease in star light, time to transit the star, and total amount of time between successive transits. It takes ~ 1000 people-hours to confirm an exoplanet ...
... Exoplanets are confirmed by observing several transits that have the same decrease in star light, time to transit the star, and total amount of time between successive transits. It takes ~ 1000 people-hours to confirm an exoplanet ...
View the presentation slides
... • The star wobbles as the planet orbits it. • The star becomes (slightly) dimmer if the planet passes in front of it (“transits” the star). Ideally, we’d like to observe a planet both ways. ...
... • The star wobbles as the planet orbits it. • The star becomes (slightly) dimmer if the planet passes in front of it (“transits” the star). Ideally, we’d like to observe a planet both ways. ...
Document
... data sets give different answers makes me doubt this The other two „planets“ are noise → This is not a robust or confirmed planetary system because a different approach gives an entirely different answer! ...
... data sets give different answers makes me doubt this The other two „planets“ are noise → This is not a robust or confirmed planetary system because a different approach gives an entirely different answer! ...
Habitable Planets Webquest
... http://science.howstuffworks.com/44484-bad-universe-goldilocks-zone-video.htm and answer this question: 1. What happens to the “planet” as it’s moved around the solar system? Step 8 : Search “What Makes a Planer Habitable” from BBC or open up: http://www.bbc.com/news/scienceenvironment-33929851 Answ ...
... http://science.howstuffworks.com/44484-bad-universe-goldilocks-zone-video.htm and answer this question: 1. What happens to the “planet” as it’s moved around the solar system? Step 8 : Search “What Makes a Planer Habitable” from BBC or open up: http://www.bbc.com/news/scienceenvironment-33929851 Answ ...
Is there life in space? Activity 2: Moving Stars and Their Planets
... of stars. Using models, they will experiment with different types of planets, different sizes of planets, and different planetary orbits and learn how to interpret shifting wavelengths of light coming from stars. Please note: there are short videos about how to use the models on several pages. You s ...
... of stars. Using models, they will experiment with different types of planets, different sizes of planets, and different planetary orbits and learn how to interpret shifting wavelengths of light coming from stars. Please note: there are short videos about how to use the models on several pages. You s ...
Closest ever exoplanet is potentially habitable
... Proxima Centauri, the closest star to the Sun, has a rocky, Earth-sized planet located in the star's habitable zone, where liquid water can exist on the surface. This major discovery was made by an international team of researchers including Julien Morin from the Laboratoire Univers et Particules de ...
... Proxima Centauri, the closest star to the Sun, has a rocky, Earth-sized planet located in the star's habitable zone, where liquid water can exist on the surface. This major discovery was made by an international team of researchers including Julien Morin from the Laboratoire Univers et Particules de ...
strange new Worlds - Scholars at Princeton
... revolution in only a few days. By comparison, even fleet-footed Mercury is a slowpoke, taking 88 days to circle the Sun. The discovery of hot Jupiters was a surprise not only because the solar system lacks such a planet, but also because the prevailing theory of planet formation forbade ...
... revolution in only a few days. By comparison, even fleet-footed Mercury is a slowpoke, taking 88 days to circle the Sun. The discovery of hot Jupiters was a surprise not only because the solar system lacks such a planet, but also because the prevailing theory of planet formation forbade ...
ppt
... days for both RV and transit discovered planets. 5. Most transiting giant planets have densities near that of Saturn. It is not known if this is due to their close proximity to the star (i.e. inflated radius) 6. Transiting planets have been discovered around stars fainter than those from radial velo ...
... days for both RV and transit discovered planets. 5. Most transiting giant planets have densities near that of Saturn. It is not known if this is due to their close proximity to the star (i.e. inflated radius) 6. Transiting planets have been discovered around stars fainter than those from radial velo ...
Detectability of Earth-like Planets by Direct Imaging - RIT
... Image credit: NASA/Ames/JPL-Caltech ...
... Image credit: NASA/Ames/JPL-Caltech ...
Searching For Planets Beyond Our Solar System - Cosmos
... of detection demands, of course, an appropriate inclination of the planet's orbit with respect to the line of sight to the star. Such observations have been proposed for a variety of ground- and space-based programmes, for example the proposed NASA FRESIP mission, as a by-product of the STARS astero ...
... of detection demands, of course, an appropriate inclination of the planet's orbit with respect to the line of sight to the star. Such observations have been proposed for a variety of ground- and space-based programmes, for example the proposed NASA FRESIP mission, as a by-product of the STARS astero ...
l`Astrofilo - Astro Publishing
... used in photosynthesis. For G stars, the peak photon flux occurs at a wavelength of approximately 643 nm and for M stars it occurs at 991 nm. It was necessary to measure the photon flux densities at these wavelengths for each star as a sufficient number of photons per unit area per second would need ...
... used in photosynthesis. For G stars, the peak photon flux occurs at a wavelength of approximately 643 nm and for M stars it occurs at 991 nm. It was necessary to measure the photon flux densities at these wavelengths for each star as a sufficient number of photons per unit area per second would need ...
The Search for Another Earth
... main obstacle in detecting a planet is the glare of the star. Because of the brightness of the star, a planet orbiting it is very difficult to see even with a sufficiently large telescope. Another reason is the wave nature of light. If the apparent separation of the star and the planet is too small, the ...
... main obstacle in detecting a planet is the glare of the star. Because of the brightness of the star, a planet orbiting it is very difficult to see even with a sufficiently large telescope. Another reason is the wave nature of light. If the apparent separation of the star and the planet is too small, the ...
26.9 news and views feature mx
... massive as our Sun can maintain sufficiently high temperatures in their interiors to become stars. In comparison, the most massive planet in our Solar System, Jupiter, has less than 0.1% of the mass of the Sun. Various definitions of a planet have been proposed, some based on mass, or the origins of ...
... massive as our Sun can maintain sufficiently high temperatures in their interiors to become stars. In comparison, the most massive planet in our Solar System, Jupiter, has less than 0.1% of the mass of the Sun. Various definitions of a planet have been proposed, some based on mass, or the origins of ...
Clear Skies - Cowichan Valley Starfinders Society
... NASA’s Chandra X-Ray observatory might have observed a brand new kind of supernova, or maybe it’s just an unusually bright supernova. Whatever the case, the explosion of SN 2006gy seems to be the brightest supernova ever observed, flaring with 100 times the energy of a typical exploded star. The tea ...
... NASA’s Chandra X-Ray observatory might have observed a brand new kind of supernova, or maybe it’s just an unusually bright supernova. Whatever the case, the explosion of SN 2006gy seems to be the brightest supernova ever observed, flaring with 100 times the energy of a typical exploded star. The tea ...
Gliese 581
Gliese 581 (/ˈɡliːzə/) is a star of spectral type M3V (a red dwarf) about 20 light years away from Earth in the constellation Libra. Its estimated mass is about a third of that of the Sun, and it is the 89th closest known star to the Sun. Observations suggest that the star has a planetary system consisting of three known planets, designated Gliese 581 b, c, and e and a possibly confirmed planet, d, in order of discovery. Additional outer planets, which received the designations Gliese 581 f, and g have been proposed, but the evidence that led to the discovery claims has been shown to be the result of stellar activity mimicking the radial velocity variations due to orbiting planets.Gliese 581 has been the subject of a ""huge amount of attention"" in the quest to discover the first habitable extrasolar planet; first for c, and then d and g. Gliese 581 c, the first low-mass extrasolar planet found near a habitable zone, was discovered in April 2007. It has since been shown that under known terrestrial planet climate models, Gliese 581 c is likely to have a runaway greenhouse effect, and hence is probably too hot to be habitable, analogous to Venus. The proposed planets Gliese 581 d and Gliese 581 g also received attention as being located within the habitable zone, but their existence has subsequently been put into doubt by some authors.On 27 November 2012, the European Space Agency announced a debris disk, with at least ten times as many comets as the Solar System. This put constraints on possible planets beyond 0.75 AU.