Extra-Solar Life: Habitable Zones
... • Ingredients for life are everywhere • If (a big “if”) we assume that liquid water is important for life, then there is a limited volume of any stellar system where that might exist – the Habitable Zone • If we assume temperature is dominated by sun/starlight, then the HZ can be calculated for any ...
... • Ingredients for life are everywhere • If (a big “if”) we assume that liquid water is important for life, then there is a limited volume of any stellar system where that might exist – the Habitable Zone • If we assume temperature is dominated by sun/starlight, then the HZ can be calculated for any ...
Problem set 2
... (a) You observe a star (Star A) that is bluish in color. You measure its spectrum, and find that the spectrum Fλ reaches a peak at an ultraviolet wavelength of 1500 Å. What is the temperature and spectral type of this star? (b) You observe a star (Star B) that is reddish in color. You measure its s ...
... (a) You observe a star (Star A) that is bluish in color. You measure its spectrum, and find that the spectrum Fλ reaches a peak at an ultraviolet wavelength of 1500 Å. What is the temperature and spectral type of this star? (b) You observe a star (Star B) that is reddish in color. You measure its s ...
Red Giants - Uplift North Hills Prep
... • Mass - hard to figure out, but there are binary stars • Age - exact age is hard, but can estimate ...
... • Mass - hard to figure out, but there are binary stars • Age - exact age is hard, but can estimate ...
Earth in space
... all matter and space was created and moved outward in all directions at the speed of light (300 million m/sec), masses of gas cooled and condensed and… ...
... all matter and space was created and moved outward in all directions at the speed of light (300 million m/sec), masses of gas cooled and condensed and… ...
mslien~1
... Ks band (extinction less at 2.2 m) Stack images Long integration times obtain deep (~18th –19th mag) JHKs images sub-solar – solar mass stars. Error vs magnitude graphs (reliability of data) ...
... Ks band (extinction less at 2.2 m) Stack images Long integration times obtain deep (~18th –19th mag) JHKs images sub-solar – solar mass stars. Error vs magnitude graphs (reliability of data) ...
PHYS 175 Fall 2014 Final Recitation Ch. 16 The Sun
... A white dwarf is the carbon core lefty over from a low mass star at the end of its H- and Heburning life. These objects are supported by electron degeneracy pressure, are very hot and not very luminous due to their small size. A neutron star is smaller than a white dwarf and is made up entirely of n ...
... A white dwarf is the carbon core lefty over from a low mass star at the end of its H- and Heburning life. These objects are supported by electron degeneracy pressure, are very hot and not very luminous due to their small size. A neutron star is smaller than a white dwarf and is made up entirely of n ...
Chapter 16 Lesson 2: What is a Star
... Ribbons of gas called prominence leap out of the chromosphere that can also erupt like a volcano. 1. This is a solar flare which can last for minutes or hours. V. The Life of Stars a. New stars form in a nebula which is a cloud of dust and gas pulled together by gravity. 1. The temperature rises, hy ...
... Ribbons of gas called prominence leap out of the chromosphere that can also erupt like a volcano. 1. This is a solar flare which can last for minutes or hours. V. The Life of Stars a. New stars form in a nebula which is a cloud of dust and gas pulled together by gravity. 1. The temperature rises, hy ...
REVIEW: STAR`S TEST
... List the visible light from longest to shortest wavelengths. Red Orange Yellow Green Blue Indigo Violet What happens to white light as it passes through a prism ? REFRACTS Which color refracts the most and least ? RED What is thought to be at the center of all galaxies ? ____BLACK HOLE______ What is ...
... List the visible light from longest to shortest wavelengths. Red Orange Yellow Green Blue Indigo Violet What happens to white light as it passes through a prism ? REFRACTS Which color refracts the most and least ? RED What is thought to be at the center of all galaxies ? ____BLACK HOLE______ What is ...
Cat`s EyE - Chandra X
... HOW: The spectacular filamentary structures in planetary nebulas come from the outer layers that have been shed by the dying star then sculpted by intense radiation from the hot central star (bright white dot in middle) that will eventually become a white dwarf. WHY: It is important to understand th ...
... HOW: The spectacular filamentary structures in planetary nebulas come from the outer layers that have been shed by the dying star then sculpted by intense radiation from the hot central star (bright white dot in middle) that will eventually become a white dwarf. WHY: It is important to understand th ...
GALILEO
... • He also saw wavy bumps and dark spots on the surface. He then realized the moon had mountains, just like earth ...
... • He also saw wavy bumps and dark spots on the surface. He then realized the moon had mountains, just like earth ...
Teachers Notes - Edinburgh International Science Festival
... Due to the vast distances between Earth and our neighbouring planets, stars and galaxies, the main way that scientists explore our universe is by observing and detecting light with telescopes. Light is emitted and reflected off many objects in space. This light contains information about the object ...
... Due to the vast distances between Earth and our neighbouring planets, stars and galaxies, the main way that scientists explore our universe is by observing and detecting light with telescopes. Light is emitted and reflected off many objects in space. This light contains information about the object ...
19Nov_2014
... • The core collapses, and the layers above fall rapidly toward the center, where they collide with the core material and “bounce” • The “bounced material collides with the remaining infalling gas, raising temperatures high enough to set off a massive fusion reaction. The star then ...
... • The core collapses, and the layers above fall rapidly toward the center, where they collide with the core material and “bounce” • The “bounced material collides with the remaining infalling gas, raising temperatures high enough to set off a massive fusion reaction. The star then ...
The Hidden Lives of Galaxies NSTA 2001
... • Under collapse, protons and electrons combine to form neutrons. • 10 Km across Black Hole (If mass of core > 5 x Solar) • Not even compacted neutrons can support weight of very massive stars. ...
... • Under collapse, protons and electrons combine to form neutrons. • 10 Km across Black Hole (If mass of core > 5 x Solar) • Not even compacted neutrons can support weight of very massive stars. ...
life cycle of stars
... • Under collapse, protons and electrons combine to form neutrons. • 10 Km across Black Hole (If mass of core > 5 x Solar) • Not even compacted neutrons can support weight of very massive stars. ...
... • Under collapse, protons and electrons combine to form neutrons. • 10 Km across Black Hole (If mass of core > 5 x Solar) • Not even compacted neutrons can support weight of very massive stars. ...
The Stars - Department of Physics and Astronomy
... More On Solar Structure • Hydrogen fusion takes place in a core extending from the Sun’s center to about 0.25 solar radius • The core is surrounded by a radiative zone extending to about 0.71 solar radius – In this zone, energy travels outward through radiative diffusion ...
... More On Solar Structure • Hydrogen fusion takes place in a core extending from the Sun’s center to about 0.25 solar radius • The core is surrounded by a radiative zone extending to about 0.71 solar radius – In this zone, energy travels outward through radiative diffusion ...
Document
... They put him and his dogs in the sky as constellations. Then they put all the animals he hunted near him. They placed the scorpion farther away so Orion wouldn’t be hurt by it again. ...
... They put him and his dogs in the sky as constellations. Then they put all the animals he hunted near him. They placed the scorpion farther away so Orion wouldn’t be hurt by it again. ...
Quantum Well Electron Gain Structures and Infrared
... • More: we see major LBV line variability (factors of ~5-6 variation in EW in 1 year) implies that one star is dominant source of ionizing radiation • Thus, even if it is a binary, probable q>1 and mass limit >> 75 M0 • (And … something BIGGER made a neutron star ...
... • More: we see major LBV line variability (factors of ~5-6 variation in EW in 1 year) implies that one star is dominant source of ionizing radiation • Thus, even if it is a binary, probable q>1 and mass limit >> 75 M0 • (And … something BIGGER made a neutron star ...
March 2016 Star Diagonal - Ogden Astronomical Society
... background stars. In the infrared, though, the gas glows brilliantly as it forms new stars inside. Combined nearinfrared and visible light observations, such as those taken by the Hubble Space Telescope, can reveal the structure of the clouds as well as the young stars inside. In the Chameleon cloud ...
... background stars. In the infrared, though, the gas glows brilliantly as it forms new stars inside. Combined nearinfrared and visible light observations, such as those taken by the Hubble Space Telescope, can reveal the structure of the clouds as well as the young stars inside. In the Chameleon cloud ...
Hipparcos
Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993. It was the first space experiment devoted to precision astrometry, the accurate measurement of the positions of celestial objects on the sky. This permitted the accurate determination of proper motions and parallaxes of stars, allowing a determination of their distance and tangential velocity. When combined with radial-velocity measurements from spectroscopy, this pinpointed all six quantities needed to determine the motion of stars. The resulting Hipparcos Catalogue, a high-precision catalogue of more than 118,200 stars, was published in 1997. The lower-precision Tycho Catalogue of more than a million stars was published at the same time, while the enhanced Tycho-2 Catalogue of 2.5 million stars was published in 2000. Hipparcos ' follow-up mission, Gaia, was launched in 2013.The word ""Hipparcos"" is an acronym for High precision parallax collecting satellite and also a reference to the ancient Greek astronomer Hipparchus of Nicaea, who is noted for applications of trigonometry to astronomy and his discovery of the precession of the equinoxes.