Shocking Truth about Massive Stars Lidia Oskinova Chandra’s First Decade of Discovery
... ’’A very energetic explosion of a massive star is likely to create a ... fireball.... the inner core of a massive, rapidly rotating star collapses into a ~10 M Kerr black hole ... A superstrong ~10 15 G magnetic field is needed to make the object ... a microquasar. Such events must be vary rare...to ...
... ’’A very energetic explosion of a massive star is likely to create a ... fireball.... the inner core of a massive, rapidly rotating star collapses into a ~10 M Kerr black hole ... A superstrong ~10 15 G magnetic field is needed to make the object ... a microquasar. Such events must be vary rare...to ...
SGL 9 NGC Galaxy magnitude 9/10 observing challenge Up for
... you have looked them up on google! Object 3 – Leo triplet (Taki page 50) No not the famous one. Look half way between delta and theta Leo and then a fraction left. This group NGC3605 / NGC 3607 and NGC 3608 are part of the Leo II group of galaxies. NGC 3605 is however in the background and NGC 3607/ ...
... you have looked them up on google! Object 3 – Leo triplet (Taki page 50) No not the famous one. Look half way between delta and theta Leo and then a fraction left. This group NGC3605 / NGC 3607 and NGC 3608 are part of the Leo II group of galaxies. NGC 3605 is however in the background and NGC 3607/ ...
Big Bear Valley Astronomical Society
... over the Bull, which was then placed in the heavens, but for his sacrilege the gods declared that the life of his best friend, Enkidu, should be taken as a forfeit. The chief star, Aldebaran is the 1st magnitude star referred to by Ptolemy as 'the Torch' on account of its bright, rose-colored lumin ...
... over the Bull, which was then placed in the heavens, but for his sacrilege the gods declared that the life of his best friend, Enkidu, should be taken as a forfeit. The chief star, Aldebaran is the 1st magnitude star referred to by Ptolemy as 'the Torch' on account of its bright, rose-colored lumin ...
Standard EPS Shell Presentation
... values for absolute brightness using a source of light called a standard ...
... values for absolute brightness using a source of light called a standard ...
Measuring Distance with Spectroscopic Parallax
... 1. Print out the HR diagram. 2. Using a pen or pencil, draw a smooth best-fit curve that runs through the middle of all of your main sequence stars. Just ignore the red giants and white dwarfs for this activity. Note that this will not be a straight line; it will curve slightly. And, it will not go ...
... 1. Print out the HR diagram. 2. Using a pen or pencil, draw a smooth best-fit curve that runs through the middle of all of your main sequence stars. Just ignore the red giants and white dwarfs for this activity. Note that this will not be a straight line; it will curve slightly. And, it will not go ...
Earth Science 25.2A : Stellar Evolution
... of our sun have relatively short life spans. These stars end in a brilliant explosion called a supernova. During a supernova, a star becomes millions of times brighter than it’s prenova stage. If one of the stars nearest to Earth produced a supernova, it would be brighter than our sun. ...
... of our sun have relatively short life spans. These stars end in a brilliant explosion called a supernova. During a supernova, a star becomes millions of times brighter than it’s prenova stage. If one of the stars nearest to Earth produced a supernova, it would be brighter than our sun. ...
14-1 Reading Questions: Neutron Stars
... 1. A neutron star, containing a little more than _________ solar mass, compressed to a radius of about __________, can be left as a remnant after a type ______ supernova explosion. A neutron star’s density is so high that physicists calculate that this material is stable only as a __________________ ...
... 1. A neutron star, containing a little more than _________ solar mass, compressed to a radius of about __________, can be left as a remnant after a type ______ supernova explosion. A neutron star’s density is so high that physicists calculate that this material is stable only as a __________________ ...
doc - University of Texas Astronomy
... own) are moving very rapidly, orbiting some unseen object. Masses inferred from Newton’s laws are millions to billions of solar masses! supermassive black holes. This was uncertain until a few years ago, but now very accurate observations have confirmed the existence of these "monsters." Understan ...
... own) are moving very rapidly, orbiting some unseen object. Masses inferred from Newton’s laws are millions to billions of solar masses! supermassive black holes. This was uncertain until a few years ago, but now very accurate observations have confirmed the existence of these "monsters." Understan ...
section 17 powerpoint
... Parsec. A measure of distance for an object that has a parallax of 1 arcsecond = 3.26 light years. Magnitude, m. A scale developed by Hipparchus to rank the naked-eye stars in terms of brightness. Luminosity. The rate at which a star emits light, often measured using absolute magnitude. Absolute Mag ...
... Parsec. A measure of distance for an object that has a parallax of 1 arcsecond = 3.26 light years. Magnitude, m. A scale developed by Hipparchus to rank the naked-eye stars in terms of brightness. Luminosity. The rate at which a star emits light, often measured using absolute magnitude. Absolute Mag ...
A New Variable Star in Perseus
... Observatory (TUG) site, Antalya, Turkey. These observations were carried out with the 45 cm robotic telescope operated without filters. A code of Schwarzenberg-Czerny (1989, 1996) was used in order to find the period of variable star. The period of variable star was determined as P=0d.55120.0005 us ...
... Observatory (TUG) site, Antalya, Turkey. These observations were carried out with the 45 cm robotic telescope operated without filters. A code of Schwarzenberg-Czerny (1989, 1996) was used in order to find the period of variable star. The period of variable star was determined as P=0d.55120.0005 us ...
5. cosmic distance ladder ii: standard candles
... An object of known luminosity is called a standard candle. Most stars are not standard candles – their luminosities are not known and consequently their distances cannot be easily calculated. However, some special types of variable and exploding stars do have known, standard luminosities. Consequen ...
... An object of known luminosity is called a standard candle. Most stars are not standard candles – their luminosities are not known and consequently their distances cannot be easily calculated. However, some special types of variable and exploding stars do have known, standard luminosities. Consequen ...
Sky News – March 2015 The Realm of the Galaxies
... west with the onset of darkness, bringing the spring constellations of Leo, Virgo, Coma Bernices and Ursa Major into prominence. It is within these that hosts of galaxies reside. The North Galactic Pole, the point in the sky directly over the centre of our galaxy, is in the constellation Coma Bernic ...
... west with the onset of darkness, bringing the spring constellations of Leo, Virgo, Coma Bernices and Ursa Major into prominence. It is within these that hosts of galaxies reside. The North Galactic Pole, the point in the sky directly over the centre of our galaxy, is in the constellation Coma Bernic ...
Learning Objectives
... An object of known luminosity is called a standard candle. Most stars are not standard candles – their luminosities are not known and consequently their distances cannot be easily calculated. However, some special types of variable and exploding stars do have known, standard luminosities. Consequen ...
... An object of known luminosity is called a standard candle. Most stars are not standard candles – their luminosities are not known and consequently their distances cannot be easily calculated. However, some special types of variable and exploding stars do have known, standard luminosities. Consequen ...
PPTX
... During the day, the Sun moves from east to west across the sky. In which direction do the stars move after the Sun has set? (A) The stars are stationary; they don't move (B) West (C) East ...
... During the day, the Sun moves from east to west across the sky. In which direction do the stars move after the Sun has set? (A) The stars are stationary; they don't move (B) West (C) East ...
Lecture 5: Stars
... We only know the absolute luminosity if we know the distance, but we only know the parallax distances out to about 100 pc (further to some bright stars). The problem is that if we see a star with a surface temperature of 3000K – is it a nearby red dwarf, or a distant red giant? Without more informat ...
... We only know the absolute luminosity if we know the distance, but we only know the parallax distances out to about 100 pc (further to some bright stars). The problem is that if we see a star with a surface temperature of 3000K – is it a nearby red dwarf, or a distant red giant? Without more informat ...
Chapter 12 Stellar Evolution
... elements far beyond carbon in its core, leading to a very different fate. Its path across the H–R diagram is essentially a straight line – it stays at just about the same luminosity as it cools off. Eventually the star dies in a violent explosion called a supernova. ...
... elements far beyond carbon in its core, leading to a very different fate. Its path across the H–R diagram is essentially a straight line – it stays at just about the same luminosity as it cools off. Eventually the star dies in a violent explosion called a supernova. ...
Cassiopeia (constellation)
Cassiopeia is a constellation in the northern sky, named after the vain queen Cassiopeia in Greek mythology, who boasted about her unrivalled beauty. Cassiopeia was one of the 48 constellations listed by the 2nd-century Greek astronomer Ptolemy, and it remains one of the 88 modern constellations today. It is easily recognizable due to its distinctive 'M' shape when in upper culmination but in higher northern locations when near lower culminations in spring and summer it has a 'W' shape, formed by five bright stars. It is bordered by Andromeda to the south, Perseus to the southeast, and Cepheus to the north. It is opposite the Big Dipper.In northern locations above 34ºN latitude it is visible year-round and in the (sub)tropics it can be seen at its clearest from September to early November in its characteristic 'M' shape. Even in low southern latitudes below 25ºS is can be seen low in the North.