Chap4-Timing
... 1. Planet formed around a normal (massive) star, the pulsar progenitor. Its present existence implying that it must have survived the supernova explosion. 2. Planet formed around another star before being captured by the pulsar through dynamical interaction. 3. ‘’Fallback accretion’’. Planet formed ...
... 1. Planet formed around a normal (massive) star, the pulsar progenitor. Its present existence implying that it must have survived the supernova explosion. 2. Planet formed around another star before being captured by the pulsar through dynamical interaction. 3. ‘’Fallback accretion’’. Planet formed ...
Orbital and Physical Characteristics of Extrasolar Planets Systems
... masses (Figure 5). It is ascertained relatively large number of planets with very low masses (M sin i≤0,2Mj ) (Figure 6). The same conclusion has been made also by the authors of [6–10]; • The previous analyses established that the number of planets increases with the distance from star [1, 9, 11, 1 ...
... masses (Figure 5). It is ascertained relatively large number of planets with very low masses (M sin i≤0,2Mj ) (Figure 6). The same conclusion has been made also by the authors of [6–10]; • The previous analyses established that the number of planets increases with the distance from star [1, 9, 11, 1 ...
A Collection of Curricula for the STARLAB Deep Sky Objects
... 1. If in STARLAB, place the Starfield Cylinder on the projection platform and adjust it for your latitude. Almost any seasonal setting will do. After the students are seated and ready, slowly dim down the side lamps and increase the brightness of the starfield. Begin a discussion of why we see thin ...
... 1. If in STARLAB, place the Starfield Cylinder on the projection platform and adjust it for your latitude. Almost any seasonal setting will do. After the students are seated and ready, slowly dim down the side lamps and increase the brightness of the starfield. Begin a discussion of why we see thin ...
Dec - National Capital Astronomers
... actually discovered in 2015 by the Kepler Spacecraft (NASA) as part of the K2 Mission (Kepler’s “Second Light”). K2-3d is 1.5 times Earth’s size, orbits its star in 45 days and is 150 light years away. Recently, while the planet was in transit across its sun, scientists from the National Astronomica ...
... actually discovered in 2015 by the Kepler Spacecraft (NASA) as part of the K2 Mission (Kepler’s “Second Light”). K2-3d is 1.5 times Earth’s size, orbits its star in 45 days and is 150 light years away. Recently, while the planet was in transit across its sun, scientists from the National Astronomica ...
Anatomy of a Supernova - hrsbstaff.ednet.ns.ca
... like magnesium, silicon, and sulfur. The final act comes when the other hand, waves that start in one density regime can the explosion reaches the star's upper layers. Somewhere travel to another; laboratory experiments routinely show dctoaround 0.7 stellar radius, the environment is no longer dense ...
... like magnesium, silicon, and sulfur. The final act comes when the other hand, waves that start in one density regime can the explosion reaches the star's upper layers. Somewhere travel to another; laboratory experiments routinely show dctoaround 0.7 stellar radius, the environment is no longer dense ...
Eris is Pluto`s Twin This diagram shows the path of a faint star during
... planet to dwarf planet in 2006. Eris is currently three times further from the Sun than Pluto. Studying these dwarf planets can help astrobiologists understand the different types of celestial bodies that can exist in orbit around stars. This information is useful in determining how and where to sea ...
... planet to dwarf planet in 2006. Eris is currently three times further from the Sun than Pluto. Studying these dwarf planets can help astrobiologists understand the different types of celestial bodies that can exist in orbit around stars. This information is useful in determining how and where to sea ...
Powerpoint slides - Earth, Planetary, and Space Sciences
... Note that the planet’s mass is uncertain by a factor of sin i. The Ms+Mp term arises because the star is orbiting the centre of mass of the ...
... Note that the planet’s mass is uncertain by a factor of sin i. The Ms+Mp term arises because the star is orbiting the centre of mass of the ...
rtf
... number by the number of Oort cloud analogues in the Galaxy. Direct detection of such clouds is not yet possible (Jura 2005), although their existence has been inferred by indirect arguments for several star systems (e.g. Beichman et al. 2005, Grady et al. 1997, Melnick et al. 2001). Indeed our curre ...
... number by the number of Oort cloud analogues in the Galaxy. Direct detection of such clouds is not yet possible (Jura 2005), although their existence has been inferred by indirect arguments for several star systems (e.g. Beichman et al. 2005, Grady et al. 1997, Melnick et al. 2001). Indeed our curre ...
Herschel
... The water vapour observed in Jupiter by Herschel has been related with those impacts (Cavalié et al. 2013). The PACS maps provide the covering pattern of water vapour on the planetary disc, whereas HIFI provides the vertical pressure profile. The water observed is located in the stratosphere with a ...
... The water vapour observed in Jupiter by Herschel has been related with those impacts (Cavalié et al. 2013). The PACS maps provide the covering pattern of water vapour on the planetary disc, whereas HIFI provides the vertical pressure profile. The water observed is located in the stratosphere with a ...
Age Aspects of Habitability
... A habitable zone of a star is defined as a range of orbits within which a rocky planet can support liquid water on its surface. The most intriguing question driving the search for habitable planets is whether they host life. But is the age of the planet important for its habitability? If we define h ...
... A habitable zone of a star is defined as a range of orbits within which a rocky planet can support liquid water on its surface. The most intriguing question driving the search for habitable planets is whether they host life. But is the age of the planet important for its habitability? If we define h ...
Chapter 1 Seeing the Light: The Art and Science of Astronomy
... moved across the pattern of stars in the sky. Some moved steadily ahead; others occasionally looped back on their own paths. Nobody knew why. And these spots of light didn’t twinkle like the stars did — no one understood that difference, either. Every culture had a name for those five spots of light ...
... moved across the pattern of stars in the sky. Some moved steadily ahead; others occasionally looped back on their own paths. Nobody knew why. And these spots of light didn’t twinkle like the stars did — no one understood that difference, either. Every culture had a name for those five spots of light ...
A rocky planet transiting a nearby low-mass star
... 219134b (ref. 11) to within 1σ. All of these planets are smaller than 1.6 Earth radii, a transition radius above which most planets require thick hydrogen/helium envelopes to explain their densities22 . At the 1σ lower bound of GJ 1132b’s estimated mass, models23 indicate that replacing only 0.2% of ...
... 219134b (ref. 11) to within 1σ. All of these planets are smaller than 1.6 Earth radii, a transition radius above which most planets require thick hydrogen/helium envelopes to explain their densities22 . At the 1σ lower bound of GJ 1132b’s estimated mass, models23 indicate that replacing only 0.2% of ...
Sky Maps Teacher`s Guide - Northern Stars Planetarium
... degrees as longitude does; instead it measures in hours, minutes, and seconds. As the stars slowly move westward across the sky, it takes one hour for an hour of Right Ascension to pass overhead on the meridian. Sky Lore is a term that refers to the legends, stories, and mythology behind the constel ...
... degrees as longitude does; instead it measures in hours, minutes, and seconds. As the stars slowly move westward across the sky, it takes one hour for an hour of Right Ascension to pass overhead on the meridian. Sky Lore is a term that refers to the legends, stories, and mythology behind the constel ...
Constellation
... Astronomers divide the sky into 88 constellations. Even though the constellations do not represent real groupings of stars, astronomers still find them useful for naming stars and mapping the sky. Astronomers use letters of the Greek alphabet to name stars. They also use a form of the name of the co ...
... Astronomers divide the sky into 88 constellations. Even though the constellations do not represent real groupings of stars, astronomers still find them useful for naming stars and mapping the sky. Astronomers use letters of the Greek alphabet to name stars. They also use a form of the name of the co ...
Kepler`s Search for Exoplanets
... [VE - Go to sunrise; stars fade off] Here we’ve marked stars with confirmed exoplanets. There are over nearly 2000 confirmed exoplanets [update as needed], and we’re still just getting started! Results from Kepler indicate that it’s likely every star we see in the night sky has planets. And it’s jus ...
... [VE - Go to sunrise; stars fade off] Here we’ve marked stars with confirmed exoplanets. There are over nearly 2000 confirmed exoplanets [update as needed], and we’re still just getting started! Results from Kepler indicate that it’s likely every star we see in the night sky has planets. And it’s jus ...
A Question of Planets - Vanderbilt University
... The T Tauri stars also turn out to be strong X-ray sources. Naked T Tauri stars produce more Xray emissions than their dustier, classical cousins. So in recent years, astronomers have been using X-ray telescopes orbiting Earth to search for them, and they’ve found hundreds. Because the “naked” T Tau ...
... The T Tauri stars also turn out to be strong X-ray sources. Naked T Tauri stars produce more Xray emissions than their dustier, classical cousins. So in recent years, astronomers have been using X-ray telescopes orbiting Earth to search for them, and they’ve found hundreds. Because the “naked” T Tau ...
Improving the Gaia planet catch by combining the astrometry with
... (region where the number of Gaia measurements is maximal). We plotted this zone in equatorial coordinates (e.g. fig. 4) and we noticed that there is an interesting region in both hemispheres and they are not close enough to the equator to be both observed by a telescope in the southern hemisphere. T ...
... (region where the number of Gaia measurements is maximal). We plotted this zone in equatorial coordinates (e.g. fig. 4) and we noticed that there is an interesting region in both hemispheres and they are not close enough to the equator to be both observed by a telescope in the southern hemisphere. T ...
Front Matter - Assets - Cambridge University Press
... moon Enceladus; lakes of methane and ethane on Saturn’s moon Titan; the encounter with asteroid Itokawa; and an encounter and sample return from comet Wild 2. The book is further enhanced by hundreds of striking new images of the planets and moons. Written at an introductory level appropriate for hi ...
... moon Enceladus; lakes of methane and ethane on Saturn’s moon Titan; the encounter with asteroid Itokawa; and an encounter and sample return from comet Wild 2. The book is further enhanced by hundreds of striking new images of the planets and moons. Written at an introductory level appropriate for hi ...
Powerpoint slides - Earth & Planetary Sciences
... Note that the planet’s mass is uncertain by a factor of sin i. The Ms+Mp term arises because the star is orbiting the centre of mass of the ...
... Note that the planet’s mass is uncertain by a factor of sin i. The Ms+Mp term arises because the star is orbiting the centre of mass of the ...
The Project Gutenberg EBook of History of Astronomy, by George
... the progress of astronomical discovery, and, by recognising the different points of view of the different ages, to give due credit even to the ancients. No one can expect, in a history of astronomy of limited size, to find a treatise on “practical” or on “theoretical astronomy,” nor a complete “desc ...
... the progress of astronomical discovery, and, by recognising the different points of view of the different ages, to give due credit even to the ancients. No one can expect, in a history of astronomy of limited size, to find a treatise on “practical” or on “theoretical astronomy,” nor a complete “desc ...
Astronomy Timeline
... 130 B.C. - Greek astronomer Hipparchus develops the first accurate star map and star catalogue, and a reliable method to predict solar eclipses 46 B.C. - Julius Caesar, after consulting the astronomer Sosigenes of Alexandria, introduces the Julian Calendar, a regular year of 365 days divided into 12 ...
... 130 B.C. - Greek astronomer Hipparchus develops the first accurate star map and star catalogue, and a reliable method to predict solar eclipses 46 B.C. - Julius Caesar, after consulting the astronomer Sosigenes of Alexandria, introduces the Julian Calendar, a regular year of 365 days divided into 12 ...
Giant planet formation
... • The total time required for planet formation might be longer than the lifetime of the disk • Gap formation in the disk might cut-off the atmospheric accumulation ...
... • The total time required for planet formation might be longer than the lifetime of the disk • Gap formation in the disk might cut-off the atmospheric accumulation ...
New Worlds on the Horizon: Earth-Sized Planets Close to Other Stars.
... frequently. A giant planet like Jupiter occults ~1% of the disk of a Sun-like star, an effect that can be detected by ground-based instruments. It is not known which stars have planets with favorable orbital geometries, and a large number must be monitored, but searches for giant planet transits are ...
... frequently. A giant planet like Jupiter occults ~1% of the disk of a Sun-like star, an effect that can be detected by ground-based instruments. It is not known which stars have planets with favorable orbital geometries, and a large number must be monitored, but searches for giant planet transits are ...