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Kidd_Thesis_2015April15_Final.
... Cepheid variable stars can be grouped into several classes, such as fundamental-mode, first-overtone, and second-overtone. Each class has distinctive features, and the light curves of the stars can be analyzed for these features in order to be used in automatic classification. Here, we focus on deve ...
... Cepheid variable stars can be grouped into several classes, such as fundamental-mode, first-overtone, and second-overtone. Each class has distinctive features, and the light curves of the stars can be analyzed for these features in order to be used in automatic classification. Here, we focus on deve ...
Tracing the Evolution and Impact of the Stellar Winds
... There is one section not shown in Figure 1.2 that lies between the termination shock and the heliosphere: the heliosheath. In this region, the solar wind becomes turbulent and continues to slow. The next section of the heliosphere is the heliopause. This is the precise boundary where the winds of th ...
... There is one section not shown in Figure 1.2 that lies between the termination shock and the heliosphere: the heliosheath. In this region, the solar wind becomes turbulent and continues to slow. The next section of the heliosphere is the heliopause. This is the precise boundary where the winds of th ...
Element Segregation in Low Metallicity Stars and the Primordial
... radiative opacities by Iglesias & Rogers (1996), completed with the atomic and molecular opacities by Alexander & Ferguson (1994). The equation of state is described with a set of MHD tables (Mihalas, Hummer & Däppen 1988) specifically calculated for the mass and metallicity domain we study here (C ...
... radiative opacities by Iglesias & Rogers (1996), completed with the atomic and molecular opacities by Alexander & Ferguson (1994). The equation of state is described with a set of MHD tables (Mihalas, Hummer & Däppen 1988) specifically calculated for the mass and metallicity domain we study here (C ...
Chapter 5 - hrsbstaff.ednet.ns.ca
... eclipses of Jupiter’s moons seemed to depend on the relative po sitions of Jupiter and Earth. When Earth was far from Jupiter (that is, near conjunction; see Figure 4-6), the eclipses occurred several minutes later than when Earth was close to Jupiter (near opposition). Rømer realized that this puzz ...
... eclipses of Jupiter’s moons seemed to depend on the relative po sitions of Jupiter and Earth. When Earth was far from Jupiter (that is, near conjunction; see Figure 4-6), the eclipses occurred several minutes later than when Earth was close to Jupiter (near opposition). Rømer realized that this puzz ...
Homework #2, AST 1002, Fall 2015
... obstacle. (c) White is defined as as an equal amount of all wavelengths. The correct answer(s) is(are) ____________. ...
... obstacle. (c) White is defined as as an equal amount of all wavelengths. The correct answer(s) is(are) ____________. ...
Absolute magnitudes and kinematics of barium
... Mayor 1988; McClure & Woodsworth 1990). Orbital elements determinations show long periods ranging from 1 to about 18 years and suggest an average mass of 1.5 M with a probable mass range of 1 to 4 M (Culver & Ianna 1976, 1980; Culver et al. 1977). Abundance anomalies are explained via the mass tra ...
... Mayor 1988; McClure & Woodsworth 1990). Orbital elements determinations show long periods ranging from 1 to about 18 years and suggest an average mass of 1.5 M with a probable mass range of 1 to 4 M (Culver & Ianna 1976, 1980; Culver et al. 1977). Abundance anomalies are explained via the mass tra ...
21. Galaxy Evolution Agenda The Monty Hall Problem/Paradox 21.1
... • Schmidt realized that the emission lines belonged to Hydrogen, but they were highly redshifted. • This object is very (> 1010 light years) far away. • other such objects were subsequently discovered • they were called quasi-stellar radio sources or quasars for short ...
... • Schmidt realized that the emission lines belonged to Hydrogen, but they were highly redshifted. • This object is very (> 1010 light years) far away. • other such objects were subsequently discovered • they were called quasi-stellar radio sources or quasars for short ...
The Clouds
... stars has been forming for about 7 Myr just on the right edge of the cloud, region 1b, sweeping up and disrupting the cloud in the process. Some stars are now visible while others remain embedded. The latest generation only began about 3 Myr in location 1c. All these objects are still embedded and s ...
... stars has been forming for about 7 Myr just on the right edge of the cloud, region 1b, sweeping up and disrupting the cloud in the process. Some stars are now visible while others remain embedded. The latest generation only began about 3 Myr in location 1c. All these objects are still embedded and s ...
Catch an Asteroid - Odysseus Contest
... one night and measured its equatorial coordinates. We sent these data to the Mino Planet Center in Harvard, where the asteroids’ astrometric observations are gathered. Measuring the change of the asteroids’ radiance we found his most important physical characteristic – its rotation period, which is ...
... one night and measured its equatorial coordinates. We sent these data to the Mino Planet Center in Harvard, where the asteroids’ astrometric observations are gathered. Measuring the change of the asteroids’ radiance we found his most important physical characteristic – its rotation period, which is ...
4-H Astronomy Project
... Background: If you are considering purchasing a telescope it is a good idea to ensure that it is the best possible quality at the cheapest price. As mentioned in the reference book you should look for a telescope with the most light gathering power rather than magnification. In other words you want ...
... Background: If you are considering purchasing a telescope it is a good idea to ensure that it is the best possible quality at the cheapest price. As mentioned in the reference book you should look for a telescope with the most light gathering power rather than magnification. In other words you want ...
Document
... separated by enormous voids. By looking back in time at very distant galaxies and clusters, we can study how they formed and evolved. Surprisingly, we now know that all these enormous structures consist largely of “dark matter” that emits little or no electromagnetic radiation. ...
... separated by enormous voids. By looking back in time at very distant galaxies and clusters, we can study how they formed and evolved. Surprisingly, we now know that all these enormous structures consist largely of “dark matter” that emits little or no electromagnetic radiation. ...
Star formation rates from young-star counts and the structure of the
... (within 1 kpc from the Sun) Milky Way star-forming sites (Evans et al. 2009; Heiderman et al. 2010; Lada, Lombardi & Alves 2010; Wu et al. 2010; Gutermuth et al. 2011). These studies have consistently shown that when one considers the immediate dense environment (on a few parsec scales) surrounding ...
... (within 1 kpc from the Sun) Milky Way star-forming sites (Evans et al. 2009; Heiderman et al. 2010; Lada, Lombardi & Alves 2010; Wu et al. 2010; Gutermuth et al. 2011). These studies have consistently shown that when one considers the immediate dense environment (on a few parsec scales) surrounding ...
Ch 33) Astrophysics and Cosmology
... we are looking. For example, if we saw Proxima Centauri explode into a supernova today, then the event would have really occurred about 4.2 years ago. The most distant galaxies emitted the light we see now roughly 13 * 109 years ago. What we see was how they were then, 13 * 109 yr ago. EXERCISE A Su ...
... we are looking. For example, if we saw Proxima Centauri explode into a supernova today, then the event would have really occurred about 4.2 years ago. The most distant galaxies emitted the light we see now roughly 13 * 109 years ago. What we see was how they were then, 13 * 109 yr ago. EXERCISE A Su ...
ULXs: General Properties and Variability - X
... Association of radio and ULXslog L(x) ~39.7(.3-10 keV) fit model kT diskbb =1.2 keV, N(H)=2.6x1022 • same place as CO wind :Rand (1999) argue that it implies 1054 ergs of KE • brightest source (to the west- not in the image above) F(x)= 2.610-12 (0.02-200 kev) Lbol ~3.8x1040- well fit by simple powe ...
... Association of radio and ULXslog L(x) ~39.7(.3-10 keV) fit model kT diskbb =1.2 keV, N(H)=2.6x1022 • same place as CO wind :Rand (1999) argue that it implies 1054 ergs of KE • brightest source (to the west- not in the image above) F(x)= 2.610-12 (0.02-200 kev) Lbol ~3.8x1040- well fit by simple powe ...
FIELD ASTRONOMY
... related to specific time. Therefore, accurate time becomes a highly significant consideration in astro survey operations. ...
... related to specific time. Therefore, accurate time becomes a highly significant consideration in astro survey operations. ...
Stellar populations in the nuclear regions of nearby radio galaxies
... necessary to resolve the Mg b and CaT features and, at the same at 5.1-Å time, offers a wide spectral span: l3350–6000 A at 3.5-Å resolution in resolution in the blue and l7900–9400 A the red. In the 1997 run, in which we assessed the viability of the project, we used the R600B and R600R grati ...
... necessary to resolve the Mg b and CaT features and, at the same at 5.1-Å time, offers a wide spectral span: l3350–6000 A at 3.5-Å resolution in resolution in the blue and l7900–9400 A the red. In the 1997 run, in which we assessed the viability of the project, we used the R600B and R600R grati ...
Laser guide star adaptive optics at the Keck Observatory
... First corrected images on NIRC2 with laser LGS AO facility operable by AO experts First LGS AO engineering science LGS AO observing strategy decision First shared-risk science First light engineering science paper LGS AO facility operable for science by OA and one expert First queue/non-shared scien ...
... First corrected images on NIRC2 with laser LGS AO facility operable by AO experts First LGS AO engineering science LGS AO observing strategy decision First shared-risk science First light engineering science paper LGS AO facility operable for science by OA and one expert First queue/non-shared scien ...
Course Outline - Tony Bacigalupo
... This is three times more than was in the visible part of the Galaxy ...
... This is three times more than was in the visible part of the Galaxy ...
Laboratory Exercises in Physics 2
... Calculate the diffraction angles of the calibration lines in the first-order from the expression derived in exercise 1 by using the angles measured on the both sides. If you have observed also the second-order repeat the calculations for it, too. Determine the grating spacing d from Eq. (1) for each ...
... Calculate the diffraction angles of the calibration lines in the first-order from the expression derived in exercise 1 by using the angles measured on the both sides. If you have observed also the second-order repeat the calculations for it, too. Determine the grating spacing d from Eq. (1) for each ...
Stars: Intro & Classification Astronomy 1 — Elementary Astronomy LA Mission College
... LA Mission College Spring F2015 ...
... LA Mission College Spring F2015 ...
Event Booklet - Exoplanets I Conference
... at Kitt Peak National Observatory (the latter which had time allocated through the NN-EXPLORE program). These observations aid the confirmation and characterization of these new exoplanets, many which are smaller than Neptune, orbit cool, nearby stars, and are amenable to detailed atmospheric charac ...
... at Kitt Peak National Observatory (the latter which had time allocated through the NN-EXPLORE program). These observations aid the confirmation and characterization of these new exoplanets, many which are smaller than Neptune, orbit cool, nearby stars, and are amenable to detailed atmospheric charac ...
JWST Project Report to the PMC
... 1.) Orbit that assures thermal stability and low background 2.) Orbit that assures long dwell times 3.) A stable PSF and excellent pointing 4.) Infrared sensitivity (planetary temperatures; molecules) 5.) Aperture sufficient to permit medium resolution spectroscopy These are obtained with a large ap ...
... 1.) Orbit that assures thermal stability and low background 2.) Orbit that assures long dwell times 3.) A stable PSF and excellent pointing 4.) Infrared sensitivity (planetary temperatures; molecules) 5.) Aperture sufficient to permit medium resolution spectroscopy These are obtained with a large ap ...
PPT presentation
... Contamination of the PN samples The contamination increases with distance to the galaxy. It is negligible for distances < 10 Mpc, as we just saw. At the distance of the Virgo cluster the luminosity function of the contaminants imitates the PNLF of a low-surfacedensity PN population at that distance ...
... Contamination of the PN samples The contamination increases with distance to the galaxy. It is negligible for distances < 10 Mpc, as we just saw. At the distance of the Virgo cluster the luminosity function of the contaminants imitates the PNLF of a low-surfacedensity PN population at that distance ...
International Ultraviolet Explorer
![](https://en.wikipedia.org/wiki/Special:FilePath/International_Ultraviolet_Explorer.gif?width=300)
The International Ultraviolet Explorer (IUE) was an astronomical observatory satellite primarily designed to take ultraviolet spectra. The satellite was a collaborative project between NASA, the UK Science Research Council and the European Space Agency (ESA). The mission was first proposed in early 1964, by a group of scientists in the United Kingdom, and was launched on January 26, 1978 aboard a NASA Delta rocket. The mission lifetime was initially set for 3 years, but in the end it lasted almost 18 years, with the satellite being shut down in 1996. The switch-off occurred for financial reasons, while the telescope was still functioning at near original efficiency.It was the first space observatory to be operated in real time by astronomers who visited the groundstations in the United States and Europe. Astronomers made over 104,000 observations using the IUE, of objects ranging from solar system bodies to distant quasars. Among the significant scientific results from IUE data were the first large scale studies of stellar winds, accurate measurements of the way interstellar dust absorbs light, and measurements of the supernova SN1987A which showed that it defied stellar evolution theories as they then stood. When the mission ended, it was considered the most successful astronomical satellite ever.