Supernova and Supernova Remnants lec 1-2
... • Need to determine the relationship between distance and redshift – Redshift (‘z’) is the measure of Doppler shift by the expansion of the universe- (1+z)~v/c – In General relativity there are 3 distances of relevance – The proper distance DP that we measure to an object is the distance we would ge ...
... • Need to determine the relationship between distance and redshift – Redshift (‘z’) is the measure of Doppler shift by the expansion of the universe- (1+z)~v/c – In General relativity there are 3 distances of relevance – The proper distance DP that we measure to an object is the distance we would ge ...
11/5/13 Mary Adams Talk - Anthroposophical Society in America
... (earth-centered) to helio-centric (sun-centered). Our own 'speaking to the stars', the astrosophia or 'star wisdom' is introduced by Rudolf Steiner at the beginning of the 20th century and remains a mystery of our becoming consciousness. I used a reference to the Catholic Church's denouncing Galileo ...
... (earth-centered) to helio-centric (sun-centered). Our own 'speaking to the stars', the astrosophia or 'star wisdom' is introduced by Rudolf Steiner at the beginning of the 20th century and remains a mystery of our becoming consciousness. I used a reference to the Catholic Church's denouncing Galileo ...
Document
... Men and women have looked up at the sky and wondered about the things they see up there for as long as humans have lived on our Earth. Long ago, the Sun and Moon were mysterious objects that could be seen in the day and night. But the planets and stars were even more mysterious probably because they ...
... Men and women have looked up at the sky and wondered about the things they see up there for as long as humans have lived on our Earth. Long ago, the Sun and Moon were mysterious objects that could be seen in the day and night. But the planets and stars were even more mysterious probably because they ...
Constellation Guide Book
... Andromeda the Constellation: Facts Symbolism: Chained Maiden, Princess of Ethiopia The best time to view: November Nearest star: Ross 248 (Ross 248 is 10.32 light years away) Brightest star: Alpheratz (visual magnitude of 2.06) Mythology: In Greek mythology, Andromeda was the princess of Ethiopia. ...
... Andromeda the Constellation: Facts Symbolism: Chained Maiden, Princess of Ethiopia The best time to view: November Nearest star: Ross 248 (Ross 248 is 10.32 light years away) Brightest star: Alpheratz (visual magnitude of 2.06) Mythology: In Greek mythology, Andromeda was the princess of Ethiopia. ...
The Search for Exoplanets - Worcester Polytechnic Institute
... 4. Introduction 4.1 What are Exoplanets? In simple terms, the word “exoplanet” (sometimes rendered as “extrasolar planet”) refers to a planetary body that exists outside of the boundaries of our Solar System. The name ultimately derives from the Greek εξώ, meaning “outside”, and πλανήτης, meaning “ ...
... 4. Introduction 4.1 What are Exoplanets? In simple terms, the word “exoplanet” (sometimes rendered as “extrasolar planet”) refers to a planetary body that exists outside of the boundaries of our Solar System. The name ultimately derives from the Greek εξώ, meaning “outside”, and πλανήτης, meaning “ ...
Document
... measure the radial velocities of both stars. This gives you the mass ratio, regardless of the viewing angle (e.g. nearly face-on, nearly edgeon, etc.). This is usually useful information. • If you can find the viewing angle, then you can compute true orbital velocities and use Kepler’s Laws and Newt ...
... measure the radial velocities of both stars. This gives you the mass ratio, regardless of the viewing angle (e.g. nearly face-on, nearly edgeon, etc.). This is usually useful information. • If you can find the viewing angle, then you can compute true orbital velocities and use Kepler’s Laws and Newt ...
MS PowerPoint - National Schools` Observatory
... and because some of the atoms will be moving away from the observer and some moving towards, the overall effect will contain both blue-shift and red-shift components. ...
... and because some of the atoms will be moving away from the observer and some moving towards, the overall effect will contain both blue-shift and red-shift components. ...
ASTR100 Class 01 - University of Maryland Department of
... A moderately large object that orbits a star; it shines by reflected light. Planets may be rocky, icy, or gaseous in ...
... A moderately large object that orbits a star; it shines by reflected light. Planets may be rocky, icy, or gaseous in ...
Studies of young stellar objects (25+5)
... Sequence of images of radio jet at 3.6 cm Curiel et al. (2006) ...
... Sequence of images of radio jet at 3.6 cm Curiel et al. (2006) ...
1 - ESO
... asteroid) into micron-size particles. • Perhaps something analogous to the collision postulated to explain Earth’s moon has occurred within the past few 1000 years in a planetary system at BD+20 307. • BD+20 307 is an excellent target for mid-IR interferometers and, perhaps, for radialvelocity plane ...
... asteroid) into micron-size particles. • Perhaps something analogous to the collision postulated to explain Earth’s moon has occurred within the past few 1000 years in a planetary system at BD+20 307. • BD+20 307 is an excellent target for mid-IR interferometers and, perhaps, for radialvelocity plane ...
Power-point slides for Lecture 2
... For solar metallicity, the maximum mass star that dies with a hydrogen envelope attached is about 35 solar masses. 4) Mass loss – either in a binary or a strong wind – may be necessary to understand the relatively small mass of Type Ib supernova progenitors. In any case it is necessary to remove the ...
... For solar metallicity, the maximum mass star that dies with a hydrogen envelope attached is about 35 solar masses. 4) Mass loss – either in a binary or a strong wind – may be necessary to understand the relatively small mass of Type Ib supernova progenitors. In any case it is necessary to remove the ...
June - Magic Valley Astronomical Society
... The usually minor June Boötid meteor shower, which peaks on the morning of June 27th, is adversely affected by moonlight this year. June Boötids are the slowest of all meteors, travelling at 18 kilometers (11 miles) per second. Browse http://imo.net/files/data/calendar/cal2016.pdf for additional inf ...
... The usually minor June Boötid meteor shower, which peaks on the morning of June 27th, is adversely affected by moonlight this year. June Boötids are the slowest of all meteors, travelling at 18 kilometers (11 miles) per second. Browse http://imo.net/files/data/calendar/cal2016.pdf for additional inf ...
Telescopes: More Than Meets the Eye
... 8. What is the Milky Way? (our galaxy) Are we part of the Milky Way? (yes) 9. Why do the stars appear to move across the sky from east to west? (because Earth is rotating or spinning). Are the stars really moving? (no) What causes day and night? (the rotation of the Earth) 10. Why is the North Star ...
... 8. What is the Milky Way? (our galaxy) Are we part of the Milky Way? (yes) 9. Why do the stars appear to move across the sky from east to west? (because Earth is rotating or spinning). Are the stars really moving? (no) What causes day and night? (the rotation of the Earth) 10. Why is the North Star ...
Procedurally Generating an Artificial Galaxy
... obviously want three dimensions. So we bring in (Z), an integer ranging from -50 to +49. This gives us a three-dimensional grid (X,Y,Z). With one cube at every combination of X, Y and Z, we have 10 000 × 10 000 × 100 = 1010 cubes. The density of stars in every cube is set by its position in the grid ...
... obviously want three dimensions. So we bring in (Z), an integer ranging from -50 to +49. This gives us a three-dimensional grid (X,Y,Z). With one cube at every combination of X, Y and Z, we have 10 000 × 10 000 × 100 = 1010 cubes. The density of stars in every cube is set by its position in the grid ...
Scientific requirements of ALMA, and its capabilities for key
... Solar System Planetary Atmospheres, Surfaces, Comets, Exosolar Planets, … ...
... Solar System Planetary Atmospheres, Surfaces, Comets, Exosolar Planets, … ...
Star Classification and its Connection to Exoplanets.
... Looking at the inferential statistics, one can conclude even more information from the hypothesis testing. The first hypothesis test dealing with a comparison between different star types allows one to decide “there is sufficient evidence at the α level of .10 to conclude that the proportion of sun- ...
... Looking at the inferential statistics, one can conclude even more information from the hypothesis testing. The first hypothesis test dealing with a comparison between different star types allows one to decide “there is sufficient evidence at the α level of .10 to conclude that the proportion of sun- ...
Systematics of Galaxy Properties and Scaling Relations Ay 127
... Virial Theorem connects mass, density, and kinetic temperature, and is thus an equation of a plane in that (theoretical) parameter space. Assumptions about the dynamical structure of ellipticals and their (M/ L) ratios then map the VT into the tilted FP in the observable parameter space of measured ...
... Virial Theorem connects mass, density, and kinetic temperature, and is thus an equation of a plane in that (theoretical) parameter space. Assumptions about the dynamical structure of ellipticals and their (M/ L) ratios then map the VT into the tilted FP in the observable parameter space of measured ...
Weighing a Black Hole
... Astronomers like to measure objects in terms of angular scale (most often very small angular scales); because the objects they observe are very far away. This is done for two reasons, foremost for the practical reason that angular size on the sky is what astronomers can measure from our vantage poin ...
... Astronomers like to measure objects in terms of angular scale (most often very small angular scales); because the objects they observe are very far away. This is done for two reasons, foremost for the practical reason that angular size on the sky is what astronomers can measure from our vantage poin ...
Ursa Minor
Ursa Minor (Latin: ""Smaller She-Bear"", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the northern sky. Like the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the name Little Dipper. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Ursa Minor has traditionally been important for navigation, particularly by mariners, due to Polaris being the North Star.Polaris, the brightest star in the constellation, is a yellow-white supergiant and the brightest Cepheid variable star in the night sky, ranging from apparent magnitude 1.97 to 2.00. Beta Ursae Minoris, also known as Kochab, is an aging star that has swollen and cooled to become an orange giant with an apparent magnitude of 2.08, only slightly fainter than Polaris. Kochab and magnitude 3 Gamma Ursae Minoris have been called the ""guardians of the pole star"". Planets have been detected orbiting four of the stars, including Kochab. The constellation also contains an isolated neutron star—Calvera—and H1504+65, the hottest white dwarf yet discovered with a surface temperature of 200,000 K.