The Deaths of Very Massive Stars
... like neutrinos. Heavier stars with less degenerate cores and shells farther out, on the other hand, have a density that declines more slowly. These mantles of heavy elements, where ultimately most of the nucleosynthesis occurs, are more tightly bound and the star is more difficult to blow up. O’Conn ...
... like neutrinos. Heavier stars with less degenerate cores and shells farther out, on the other hand, have a density that declines more slowly. These mantles of heavy elements, where ultimately most of the nucleosynthesis occurs, are more tightly bound and the star is more difficult to blow up. O’Conn ...
chapter17StarStuff
... into space • The Crab Nebula is the remnant of the supernova seen in A.D. 1054, M1, NGC 1952, Taurus A, ~6,300LY away, 3LY radius, optical and radio pulsar ...
... into space • The Crab Nebula is the remnant of the supernova seen in A.D. 1054, M1, NGC 1952, Taurus A, ~6,300LY away, 3LY radius, optical and radio pulsar ...
Injection mechanisms of short-lived radionuclides and their
... (Bizzarro et al., 2007; Quitté and Markowski, 2007), however, did not find the expected excess 60Ni in SAH99555, a basaltic angrite with a well-constrained Pb–Pb age of 4564.55 ± 0.16 Myr (Connelly et al., 2008b) and evidence for live 26Al at the time of its crystallization (Baker et al., 2005). The ...
... (Bizzarro et al., 2007; Quitté and Markowski, 2007), however, did not find the expected excess 60Ni in SAH99555, a basaltic angrite with a well-constrained Pb–Pb age of 4564.55 ± 0.16 Myr (Connelly et al., 2008b) and evidence for live 26Al at the time of its crystallization (Baker et al., 2005). The ...
Does size matter (in the SFRs)?
... -SFR increases for latter type galaxies a factor of 50, being the Sm and Irr those with the larger values. -Moreover, the HII regions for these galaxies are brighter (Kennicutt et al. 1989 ApJ, 435, 22) -In addition, there is a relationship between the disk averaged SFR per area and the average gas ...
... -SFR increases for latter type galaxies a factor of 50, being the Sm and Irr those with the larger values. -Moreover, the HII regions for these galaxies are brighter (Kennicutt et al. 1989 ApJ, 435, 22) -In addition, there is a relationship between the disk averaged SFR per area and the average gas ...
2. The Anatomy of Stellar Life and Death
... nebulae remain fairly massive even as they collapse, and they fail to fragment into smaller, denser and less massive cores. Thus the stars produced from this material tend to be particularly massive, and modeling suggests that this was an important factor in the formation of the first stars in the u ...
... nebulae remain fairly massive even as they collapse, and they fail to fragment into smaller, denser and less massive cores. Thus the stars produced from this material tend to be particularly massive, and modeling suggests that this was an important factor in the formation of the first stars in the u ...
- MNASSA Page
... more than 30 arc minutes. It is a very nice object to study through binoculars. The Magellanic Cloud is home to NGC 2070, also known as Bennett 35, the great looped nebula situated in the south-eastern part of the Cloud and probably one of the most amazing objects in the southern night sky. Known as ...
... more than 30 arc minutes. It is a very nice object to study through binoculars. The Magellanic Cloud is home to NGC 2070, also known as Bennett 35, the great looped nebula situated in the south-eastern part of the Cloud and probably one of the most amazing objects in the southern night sky. Known as ...
E3 – Stellar distances
... Cepheid variables • At distances greater than Mpc, neither parallax nor spectroscopic parallax can be relied upon to measure the distance to a star. • When we observe another galaxy, all of the stars in that galaxy are approximately the same distance away from the earth. What we really need is a li ...
... Cepheid variables • At distances greater than Mpc, neither parallax nor spectroscopic parallax can be relied upon to measure the distance to a star. • When we observe another galaxy, all of the stars in that galaxy are approximately the same distance away from the earth. What we really need is a li ...
Leo Powerpoint
... Hercules plugged one of the openings and entered the den empty-handed from the other. He strangled the lion to his death and using one of his claws tore away his skin, which he later used as an impermeable armor on his body for the remaining 11 tasks that he had to complete. As Hercules came out suc ...
... Hercules plugged one of the openings and entered the den empty-handed from the other. He strangled the lion to his death and using one of his claws tore away his skin, which he later used as an impermeable armor on his body for the remaining 11 tasks that he had to complete. As Hercules came out suc ...
The Life Cycle of Stars: Supernovae in Starbursts by Jason Kezwer
... We have observed the nearest ultraluminous infrared galaxy Arp 220 with a 13 month near-infrared observing program using the Canada France Hawaii Telescope to search for obscured supernovae in this extreme star forming environment. This monitoring program was aimed as a feasibility study to determin ...
... We have observed the nearest ultraluminous infrared galaxy Arp 220 with a 13 month near-infrared observing program using the Canada France Hawaii Telescope to search for obscured supernovae in this extreme star forming environment. This monitoring program was aimed as a feasibility study to determin ...
Chapter 12 Quiz, Nov. 28, 2012, Astro 162, Section 4 12-1
... with ideas of there being more star formation in the arms since many galaxies are observed to have more new stars in the place where the arm should just have moved through). How these density waves are set up is unclear, but it may have to do with interactions (many grand design spirals have smaller ...
... with ideas of there being more star formation in the arms since many galaxies are observed to have more new stars in the place where the arm should just have moved through). How these density waves are set up is unclear, but it may have to do with interactions (many grand design spirals have smaller ...
DTU 8e Chap 17 Quasars and Other Active Galaxies
... radio emissions from Cygnus A come from the radio lobes located on either side of the peculiar galaxy seen in the inset, a Hubble Space Telescope image. Each of the two radio lobes extend about 160,000 light-years from the optical galaxy and contain a brilliant, condensed region of radio emission. I ...
... radio emissions from Cygnus A come from the radio lobes located on either side of the peculiar galaxy seen in the inset, a Hubble Space Telescope image. Each of the two radio lobes extend about 160,000 light-years from the optical galaxy and contain a brilliant, condensed region of radio emission. I ...
What are Messier Objects? - Bowling Green State University
... Throughout the night as the earth rotates our sky changes, and so does the sky where we stand. The information that continues is the results of a Messier marathon. How many Messier objects can you see in one night? The answer is you never know for sure. If you ask yourself that question everyday, yo ...
... Throughout the night as the earth rotates our sky changes, and so does the sky where we stand. The information that continues is the results of a Messier marathon. How many Messier objects can you see in one night? The answer is you never know for sure. If you ask yourself that question everyday, yo ...
Life Stages of High
... • A star’s mass determines its entire life story because it determines its core temperature • High-mass stars with >8MSun have short lives, eventually becoming hot enough to make iron, and end in supernova explosions • Low-mass stars with <2MSun have long lives, never become hot enough to fuse carbo ...
... • A star’s mass determines its entire life story because it determines its core temperature • High-mass stars with >8MSun have short lives, eventually becoming hot enough to make iron, and end in supernova explosions • Low-mass stars with <2MSun have long lives, never become hot enough to fuse carbo ...
Neutron Stars PowerPoint
... • Basic physical process – Energy transferred to electrons from magnetic field • Similar to the Sun’s coronal heating ...
... • Basic physical process – Energy transferred to electrons from magnetic field • Similar to the Sun’s coronal heating ...
Neutron Stars PowerPoint
... • Basic observations – Supernova remnants emit huge amounts of energy – Rotation rate of neutron stars gradually decreases • Energy expended is same as energy emitted by remnant ...
... • Basic observations – Supernova remnants emit huge amounts of energy – Rotation rate of neutron stars gradually decreases • Energy expended is same as energy emitted by remnant ...
24.1 Hubble`s Galaxy Classification
... In hindsight this makes sense, since faster rotation means more galaxy mass, means (on average) a more luminous galaxy. In the example below the Galaxy is spatially resolved, but you could get this from the width of a spectral line if you couldn’t resolve the galaxy. This galaxy is NGC 4603, about 3 ...
... In hindsight this makes sense, since faster rotation means more galaxy mass, means (on average) a more luminous galaxy. In the example below the Galaxy is spatially resolved, but you could get this from the width of a spectral line if you couldn’t resolve the galaxy. This galaxy is NGC 4603, about 3 ...
Chandra Observation of Pulsar Wind Nebula
... on to describe how it rivaled Venus (magnitude -4.6 at the time) and how sharp-eyed “country folk” could spot ...
... on to describe how it rivaled Venus (magnitude -4.6 at the time) and how sharp-eyed “country folk” could spot ...
December - Rose City Astronomers
... Markarian 205, which in turn is tightly wound spiral galaxy with a quasar at its core. Through my scope NGC 4319 was actually the fainter of the group of three NGC galaxies it’s a part of – 4291, 4386 are both brighter. All three galaxies comfortably fit into the same low power field, with 4291 the ...
... Markarian 205, which in turn is tightly wound spiral galaxy with a quasar at its core. Through my scope NGC 4319 was actually the fainter of the group of three NGC galaxies it’s a part of – 4291, 4386 are both brighter. All three galaxies comfortably fit into the same low power field, with 4291 the ...
Student Manual - Gettysburg College
... XMM-Newton is an X-ray satellite launched into Earth’s orbit on December 10, 1999 by the European Space Agency (ESA). XMM-Newton is actually a fully-functioning observatory, carrying three very advanced X-ray telescopes. They each contain 58 highprecision concentric mirrors, nested to offer the larg ...
... XMM-Newton is an X-ray satellite launched into Earth’s orbit on December 10, 1999 by the European Space Agency (ESA). XMM-Newton is actually a fully-functioning observatory, carrying three very advanced X-ray telescopes. They each contain 58 highprecision concentric mirrors, nested to offer the larg ...
The self-enrichment of galactic halo globular clusters: a clue to their
... located on a single straight line with a slope ≃ 1 ending with a clumping at the maximum value of [Ti/Fe] b. looking for correlations including s-process element (e.g. yttrium), two distinct behaviours were found : some stars show a correlation between [Y/Fe] and [Ti/Fe] with a slope smaller than on ...
... located on a single straight line with a slope ≃ 1 ending with a clumping at the maximum value of [Ti/Fe] b. looking for correlations including s-process element (e.g. yttrium), two distinct behaviours were found : some stars show a correlation between [Y/Fe] and [Ti/Fe] with a slope smaller than on ...
Galaxies - senwiki
... that nothing, not even light, can escape. -Why? Black holes have extremely strong gravitational pulls. They can pull in stars and accumulate the mass of the stars. -Where are black holes located? Astronomers believe that each galaxy contains at least one supermassive black hole at its centre. ...
... that nothing, not even light, can escape. -Why? Black holes have extremely strong gravitational pulls. They can pull in stars and accumulate the mass of the stars. -Where are black holes located? Astronomers believe that each galaxy contains at least one supermassive black hole at its centre. ...
Modified True/False - Indicate whether the statement is true or false
... ____ 15. HS-ESS1-1 When a white dwarf star no longer emits energy, it may become a a. Black hole. c. Neutron star. b. Nova. d. Black dwarf. ____ 16. HS-ESS1-1 The process in which smaller atomic nuclei combine into larger atomic nuclei is known as a. Gravitational attraction. c. The Doppler effect. ...
... ____ 15. HS-ESS1-1 When a white dwarf star no longer emits energy, it may become a a. Black hole. c. Neutron star. b. Nova. d. Black dwarf. ____ 16. HS-ESS1-1 The process in which smaller atomic nuclei combine into larger atomic nuclei is known as a. Gravitational attraction. c. The Doppler effect. ...
Question 1
... a) The Sun’s mass and velocity in orbit around the Galactic center b) The rotation of the bulge and disk components c) The Sun’s age and age of the globular cluster stars d) The motion of spiral arms and the mass of the central black hole e) The orbital period and distance from the Galactic center o ...
... a) The Sun’s mass and velocity in orbit around the Galactic center b) The rotation of the bulge and disk components c) The Sun’s age and age of the globular cluster stars d) The motion of spiral arms and the mass of the central black hole e) The orbital period and distance from the Galactic center o ...
History of supernova observation
The known history of supernova observation goes back to 185 CE, when, supernova SN 185 appeared, the oldest appearance of a supernova recorded by humankind. Several additional supernovae within the Milky Way galaxy have been recorded since that time, with SN 1604 being the most recent supernova to be observed in this galaxy.Since the development of the telescope, the field of supernova discovery has expanded to other galaxies. These occurrences provide important information on the distances of galaxies. Successful models of supernova behavior have also been developed, and the role of supernovae in the star formation process is now increasingly understood.