![z= 1000 - z= 10](http://s1.studyres.com/store/data/008085586_1-5a9369159d8af6dea1ba0774019cb168-300x300.png)
z= 1000 - z= 10
... imaging with SALT of low extinction part of ACT strip (200 square degrees) Would be a very interesting target for a lensing survey ...
... imaging with SALT of low extinction part of ACT strip (200 square degrees) Would be a very interesting target for a lensing survey ...
TERMS USED IN MANIPULATING A TRANSIT VERNIER
... (i) Set up the theodolite at station point O and level it accurately with reference to the altitude bubble. (ii) Set the zero of vertical vernier exactly to the zero of the vertical circle clamp and tangent screw. (iii) Bring the bubble of the altitude level in the central position by using clip scr ...
... (i) Set up the theodolite at station point O and level it accurately with reference to the altitude bubble. (ii) Set the zero of vertical vernier exactly to the zero of the vertical circle clamp and tangent screw. (iii) Bring the bubble of the altitude level in the central position by using clip scr ...
System Level # Requirements Document
... These broad science goals have motivated a set of science-driven observatory capabilities and requirements that are described in this document, representing the consensus view of the Science Advisory Committee and the Project Scientist, after consultation with many expert engineers and scientists wi ...
... These broad science goals have motivated a set of science-driven observatory capabilities and requirements that are described in this document, representing the consensus view of the Science Advisory Committee and the Project Scientist, after consultation with many expert engineers and scientists wi ...
English version - Richard de Grijs
... Arecibo L-Band Feed Array (or PALFA) Survey. The two recently discovered intermittent pulsars spend most of their time in the OFF state. Three other similar pulsars are also known, but they are mostly ON. ...
... Arecibo L-Band Feed Array (or PALFA) Survey. The two recently discovered intermittent pulsars spend most of their time in the OFF state. Three other similar pulsars are also known, but they are mostly ON. ...
Vision and Voyages for Planetary Science 2013
... Planetary science is a multifaceted enterprise that collectively seeks answers to basic questions—such as how planets form, how they work, and why at least one planet is the abode of life. The fact that researchers can and do address these deceptively simple questions explains, in part, why planetar ...
... Planetary science is a multifaceted enterprise that collectively seeks answers to basic questions—such as how planets form, how they work, and why at least one planet is the abode of life. The fact that researchers can and do address these deceptively simple questions explains, in part, why planetar ...
Galaxies * Island universes
... Gravitationally Settle Down… • …all the detailed delicate structure of the former galaxies has been blender’ed away • It is a blob of stars, more concentrated in the center, but otherwise pretty featureless ...
... Gravitationally Settle Down… • …all the detailed delicate structure of the former galaxies has been blender’ed away • It is a blob of stars, more concentrated in the center, but otherwise pretty featureless ...
12-iim fine-structure emission line and continuum images of G333.6
... Accepted 1997 October 1. Received 1997 June 23; in original form 1996 October 18 ...
... Accepted 1997 October 1. Received 1997 June 23; in original form 1996 October 18 ...
latest Edition - ExoPlanet News
... samples of planet and non-planet hosts. Whether these chemical differences are indeed related to the presence of planets is still strongly debated. Aims. We aim to test whether solar-type stars with debris discs show any chemical peculiarity that could be related to the planet formation process. Met ...
... samples of planet and non-planet hosts. Whether these chemical differences are indeed related to the presence of planets is still strongly debated. Aims. We aim to test whether solar-type stars with debris discs show any chemical peculiarity that could be related to the planet formation process. Met ...
Pre-Lab
... category including gaseous nebulae, planetary nebulae, hazy star clusters, and faint lens-shaped formations. If these objects were nearby, with distances comparable to those of observable stars, they would have to be luminous clouds of gas within our Galaxy. If they were very remote, far beyond the ...
... category including gaseous nebulae, planetary nebulae, hazy star clusters, and faint lens-shaped formations. If these objects were nearby, with distances comparable to those of observable stars, they would have to be luminous clouds of gas within our Galaxy. If they were very remote, far beyond the ...
VisionCare Ophthalmic Technologies, Inc. 14395 Saratoga Avenue
... Vision Loss. Your vision may get worse. The risk of losing more than 2 lines of vision on the eye chart was about 11% over the 5 years following intraocular surgery and about 27% at 8 years after surgery. Also, 48% of the patients in the study reported that their vision-related quality of life eithe ...
... Vision Loss. Your vision may get worse. The risk of losing more than 2 lines of vision on the eye chart was about 11% over the 5 years following intraocular surgery and about 27% at 8 years after surgery. Also, 48% of the patients in the study reported that their vision-related quality of life eithe ...
Abstract - UChicago High Energy Physics
... important role in the nucleosynthesis that takes place in and around disks [6–9]. For example, the wind outflows [10, 11] above disks can be home to nucleosynthesis, including perhaps the r-process, depending on neutrino flavor composition [2, 9, 12–16]. The neutrino flavor composition above the neu ...
... important role in the nucleosynthesis that takes place in and around disks [6–9]. For example, the wind outflows [10, 11] above disks can be home to nucleosynthesis, including perhaps the r-process, depending on neutrino flavor composition [2, 9, 12–16]. The neutrino flavor composition above the neu ...
EX PLANET E - Institute of Physics
... On their worksheet, students are provided with a light curve and asked to sketch curves for a faster and a bigger planet. These are illustrated in figure 1b. A faster exoplanet moves across the face of the star more quickly and so the dip in intensity lasts for a shorter time. A larger exoplanet obs ...
... On their worksheet, students are provided with a light curve and asked to sketch curves for a faster and a bigger planet. These are illustrated in figure 1b. A faster exoplanet moves across the face of the star more quickly and so the dip in intensity lasts for a shorter time. A larger exoplanet obs ...
Hands-On Activities
... Mars: the fourth planet from the Sun in the solar system, named after the Roman god of war (the counterpart of the Greek Ares), on account of its blood red color as viewed in the night sky. Mercury: The innermost and smallest planet in the solar system (since Pluto was re-labeled as a dwarf planet), ...
... Mars: the fourth planet from the Sun in the solar system, named after the Roman god of war (the counterpart of the Greek Ares), on account of its blood red color as viewed in the night sky. Mercury: The innermost and smallest planet in the solar system (since Pluto was re-labeled as a dwarf planet), ...
Debris disks and the search for life in the universe Gianni Cataldi
... medium (ISM). By mass, the ISM consists of 99% gas and 1% dust (Boulanger et al. 2000). The gas is composed of hydrogen (∼70% by mass) and helium (∼28%), the rest being heavier elements referred to as metals in astronomy. The ISM is far from homogeneous. Temperature and density vary considerably for ...
... medium (ISM). By mass, the ISM consists of 99% gas and 1% dust (Boulanger et al. 2000). The gas is composed of hydrogen (∼70% by mass) and helium (∼28%), the rest being heavier elements referred to as metals in astronomy. The ISM is far from homogeneous. Temperature and density vary considerably for ...
The earliest datable observation of the aurora borealis
... occurred close to the vernal equinox, the Sun would have set almost due west. However, the recorded interval of as long as four hours precludes the interpretation of the phenomenon as an extended sunset, caused by scattering of light from volcanic dust in the stratosphere. Moreover, since the colour ...
... occurred close to the vernal equinox, the Sun would have set almost due west. However, the recorded interval of as long as four hours precludes the interpretation of the phenomenon as an extended sunset, caused by scattering of light from volcanic dust in the stratosphere. Moreover, since the colour ...
Introduction: The History and Technique of Stellar Classification
... Introduction: The History and Technique of Stellar Classification Patterns of absorption lines were first observed in the spectrum of the sun by the German physicist Joseph von Fraunhofer early in the 1800’s, but it was not until late in that century that astronomers were able to routinely examine t ...
... Introduction: The History and Technique of Stellar Classification Patterns of absorption lines were first observed in the spectrum of the sun by the German physicist Joseph von Fraunhofer early in the 1800’s, but it was not until late in that century that astronomers were able to routinely examine t ...
Parallax - Georgia State University
... Types of Parallax The ideal case How stars move How the Earth moves Atmospheric effects Telescope effects Van de Kamp Observations The Reference Field Absolute Frame Reduction to Parallax Reduction to Absolute Errors Works Cited ...
... Types of Parallax The ideal case How stars move How the Earth moves Atmospheric effects Telescope effects Van de Kamp Observations The Reference Field Absolute Frame Reduction to Parallax Reduction to Absolute Errors Works Cited ...
previous lectures - Gwynedd Astronomy Society
... The Sun J Thompson Patrick Moore’s introduction to astronomy Star party D Hopkins/I Stokes Solar Suite J Mithan Deep sky observing S Reid Mars D Smith Hubble Space Telescope D Fear Optical Atmospheric phenomena G Williams Why hasn’t ET called yet? D Fear Salty geysers on Enceladus J Thompson Book re ...
... The Sun J Thompson Patrick Moore’s introduction to astronomy Star party D Hopkins/I Stokes Solar Suite J Mithan Deep sky observing S Reid Mars D Smith Hubble Space Telescope D Fear Optical Atmospheric phenomena G Williams Why hasn’t ET called yet? D Fear Salty geysers on Enceladus J Thompson Book re ...
Powerpoint file as used in presentation
... VLTI telescopes in order that the science instrument can coherently integrate (thus obtaining a good SNR on dim targets) and also to obtain visibility phase either with respect to an off-axis reference star or with respect to the target itself at the fringe-tracker's wavelength. Therefore the abilit ...
... VLTI telescopes in order that the science instrument can coherently integrate (thus obtaining a good SNR on dim targets) and also to obtain visibility phase either with respect to an off-axis reference star or with respect to the target itself at the fringe-tracker's wavelength. Therefore the abilit ...
Terrestrial Planets
... the light emanating from a star passes very close to another star on its way to an observer on Earth, the gravity of the intermediary star will slightly bend the light rays from the source star, causing the two stars to appear farther apart than they normally would. This effect was used by Sir Arthu ...
... the light emanating from a star passes very close to another star on its way to an observer on Earth, the gravity of the intermediary star will slightly bend the light rays from the source star, causing the two stars to appear farther apart than they normally would. This effect was used by Sir Arthu ...
What To See Telescope(Jul-Sept) v1 - One
... captured the imagination of stargazers for thousands of years. Ancient Egyptians identified the constellation as the goddess Tawaret. Arabs called these stars the “Mother Camels”. And the Greeks and Romans defined the constellation as a dragon who some say was killed by Minerva (Athena) and hurled i ...
... captured the imagination of stargazers for thousands of years. Ancient Egyptians identified the constellation as the goddess Tawaret. Arabs called these stars the “Mother Camels”. And the Greeks and Romans defined the constellation as a dragon who some say was killed by Minerva (Athena) and hurled i ...
The Sculptor dwarf irregular galaxy SDIG: present and past
... galactic H I (Burstein & Heiles 1984). Given that SDIG is more than 10° away from the Sculptor dwarf spheroidal, a direct measurement is preferable. Thus, the authors adopt the RC3 value, namely E(B - v)gal = 0.00 mag. The internal extinction in SDIG is unknown. Based on model fits to optical surfac ...
... galactic H I (Burstein & Heiles 1984). Given that SDIG is more than 10° away from the Sculptor dwarf spheroidal, a direct measurement is preferable. Thus, the authors adopt the RC3 value, namely E(B - v)gal = 0.00 mag. The internal extinction in SDIG is unknown. Based on model fits to optical surfac ...
Bez nadpisu
... the outer parts of the disk interact from different angles. On the other hand, the depths of the minima are different because the “nose” of the red star, which is turned toward the white dwarf, is heated by radiation from the disk. After an outburst the luminosity of the disk and the spot on it decr ...
... the outer parts of the disk interact from different angles. On the other hand, the depths of the minima are different because the “nose” of the red star, which is turned toward the white dwarf, is heated by radiation from the disk. After an outburst the luminosity of the disk and the spot on it decr ...
Spitzer Space Telescope
![](https://commons.wikimedia.org/wiki/Special:FilePath/Spitzer_space_telescope.jpg?width=300)
The Spitzer Space Telescope (SST), formerly the Space Infrared Telescope Facility (SIRTF), is an infrared space observatory launched in 2003. It is the fourth and final of the NASA Great Observatories program.The planned mission period was to be 2.5 years with a pre-launch expectation that the mission could extend to five or slightly more years until the onboard liquid helium supply was exhausted. This occurred on 15 May 2009. Without liquid helium to cool the telescope to the very low temperatures needed to operate, most of the instruments are no longer usable. However, the two shortest-wavelength modules of the IRAC camera are still operable with the same sensitivity as before the cryogen was exhausted, and will continue to be used in the Spitzer Warm Mission. All Spitzer data, from both the primary and warm phases, are archived at the Infrared Science Archive (IRSA).In keeping with NASA tradition, the telescope was renamed after its successful demonstration of operation, on 18 December 2003. Unlike most telescopes that are named after famous deceased astronomers by a board of scientists, the new name for SIRTF was obtained from a contest open to the general public.The contest led to the telescope being named in honor of astronomer Lyman Spitzer, who had promoted the concept of space telescopes in the 1940s. Spitzer wrote a 1946 report for RAND Corporation describing the advantages of an extraterrestrial observatory and how it could be realized with available or upcoming technology. He has been cited for his pioneering contributions to rocketry and astronomy, as well as ""his vision and leadership in articulating the advantages and benefits to be realized from the Space Telescope Program.""The US$800 million Spitzer was launched from Cape Canaveral Air Force Station, on a Delta II 7920H ELV rocket, Monday, 25 August 2003 at 13:35:39 UTC-5 (EDT).It follows a heliocentric instead of geocentric orbit, trailing and drifting away from Earth's orbit at approximately 0.1 astronomical unit per year (a so-called ""earth-trailing"" orbit). The primary mirror is 85 centimeters (33 in) in diameter, f/12, made of beryllium and is cooled to 5.5 K (−449.77 °F). The satellite contains three instruments that allow it to perform astronomical imaging and photometry from 3 to 180 micrometers, spectroscopy from 5 to 40 micrometers, and spectrophotometry from 5 to 100 micrometers.