Astron 104 Laboratory #9 Cepheid Variable Stars
... Figure 1: How a Cepheid star changes brightness with time. function of time. Note that the vertical axis represents the apparent magnitude, which can be easily measured, not the absolute magnitude. Click anywhere on the plot to return to the view of the sky. To assist you in making accurate readings ...
... Figure 1: How a Cepheid star changes brightness with time. function of time. Note that the vertical axis represents the apparent magnitude, which can be easily measured, not the absolute magnitude. Click anywhere on the plot to return to the view of the sky. To assist you in making accurate readings ...
GALEX and Star Formation
... enabling e.g. to discern O-types from late-O/early-B, while optical colors are saturated in this regime (e.g. Bianchi 2007), and (ii) UV colors provide precise agedating of integrated stellar populations for ages less than 1Gyr. UV images give therefore an instant snapshot of young star-forming site ...
... enabling e.g. to discern O-types from late-O/early-B, while optical colors are saturated in this regime (e.g. Bianchi 2007), and (ii) UV colors provide precise agedating of integrated stellar populations for ages less than 1Gyr. UV images give therefore an instant snapshot of young star-forming site ...
Characterization and Subtraction of Well
... using cubic convolution interpolation (Park & Schowengerdt 1983), which approximates sinc interpolation. This is performed using the INTERPOLATE function in IDL with the CUBIC option. This method produces results superior to those of bilinear interpolation by preserving higher spatial frequencies, t ...
... using cubic convolution interpolation (Park & Schowengerdt 1983), which approximates sinc interpolation. This is performed using the INTERPOLATE function in IDL with the CUBIC option. This method produces results superior to those of bilinear interpolation by preserving higher spatial frequencies, t ...
TELESCOPES - GeoEcoGeo.com
... Students can illustrate the inner workings and parts of both types of optical telescopes and can explain why the image that is seen in an optical telescope is upside-down. Students understand the problems with building large lenses/mirrors. Students know which types of electromagnetic radiation are ...
... Students can illustrate the inner workings and parts of both types of optical telescopes and can explain why the image that is seen in an optical telescope is upside-down. Students understand the problems with building large lenses/mirrors. Students know which types of electromagnetic radiation are ...
A New Science Strategy for Space Astronomy and Astrophysics
... NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The members of the committee ...
... NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The members of the committee ...
tut35 Magnitudes
... Where ∆ and r are distances in AU from the Earth and Sun, respectively. The IAU has defined a plutoid as a “dwarf planet” with a semi-major axis greater than Neptune. It is usually impossible to optically determine if distant KBOs are in hydrostatic equilibrium (round). The IAU assumes an object is ...
... Where ∆ and r are distances in AU from the Earth and Sun, respectively. The IAU has defined a plutoid as a “dwarf planet” with a semi-major axis greater than Neptune. It is usually impossible to optically determine if distant KBOs are in hydrostatic equilibrium (round). The IAU assumes an object is ...
Cassiopeia Kelly Pearce
... New General Catalogue objects and Messier objects. New General Catalogue is a catalogue of recorded deep sky objects and is referred to as NGC (SEDS, The Messier Catalog, 2010). The first of these objects, NGC 457, is also called the Skiing Cluster, the Owl Cluster or the ET cluster, depending on ho ...
... New General Catalogue objects and Messier objects. New General Catalogue is a catalogue of recorded deep sky objects and is referred to as NGC (SEDS, The Messier Catalog, 2010). The first of these objects, NGC 457, is also called the Skiing Cluster, the Owl Cluster or the ET cluster, depending on ho ...
Observations, Modeling and Theory of Debris Disks
... Universidad Autónoma de Madrid Main sequence stars, like the Sun, are often found to be orbited by circumstellar material that can be categorized into two groups, planets and debris. The latter is made up of asteroids and comets, as well as the dust and gas derived from them, which makes debris dis ...
... Universidad Autónoma de Madrid Main sequence stars, like the Sun, are often found to be orbited by circumstellar material that can be categorized into two groups, planets and debris. The latter is made up of asteroids and comets, as well as the dust and gas derived from them, which makes debris dis ...
Astronomers` Observing Guides
... darkness of night to dazzle and delight you. This is actually two books in one. The first part surveys the current state of knowledge about double stars – how they are born, evolve and interact, their significance in the cosmic scheme of things, and the valuable insights they provide into such fundame ...
... darkness of night to dazzle and delight you. This is actually two books in one. The first part surveys the current state of knowledge about double stars – how they are born, evolve and interact, their significance in the cosmic scheme of things, and the valuable insights they provide into such fundame ...
The Korean 1592--1593 Record of a Guest Star: Animpostor`of the
... 2012 occurred 3 yrs later than its precursor. However, such an outburst can occur at anytime before the SN explosion in principle, in particular if binary interactions are responsible for it. The case of SN 2014C is particularly relevant in this regard. The recent study on SN 2014C, which appeared a ...
... 2012 occurred 3 yrs later than its precursor. However, such an outburst can occur at anytime before the SN explosion in principle, in particular if binary interactions are responsible for it. The case of SN 2014C is particularly relevant in this regard. The recent study on SN 2014C, which appeared a ...
PPT presentation
... of Local Group dwarf galaxies for PNe. They found that the number of PN per unit stellar luminosity appears to decline steeply for metallicities below 0.1 solar. ...
... of Local Group dwarf galaxies for PNe. They found that the number of PN per unit stellar luminosity appears to decline steeply for metallicities below 0.1 solar. ...
SciPoster_Jan2009
... that could contain regions of active star formation within them; both are associated with IRAS sources, and based on prior shallow surveys, they both have a YSO candidate in the neighborhood. Spitzer observations with IRAC and MIPS allowed us to see deep inside the cloud, deeper than any prior obser ...
... that could contain regions of active star formation within them; both are associated with IRAS sources, and based on prior shallow surveys, they both have a YSO candidate in the neighborhood. Spitzer observations with IRAC and MIPS allowed us to see deep inside the cloud, deeper than any prior obser ...
R585 EXPLORERS OF THE SOUTHERN SKY
... 527 - history of astronomy This well-illustrated volume is the most conprehensive account of Australian astronomy to date. It is both an indispensabel reference book on the history of astronomy in Australia and a highly readable study of a scientific discipline in the context of emerging nationhood. ...
... 527 - history of astronomy This well-illustrated volume is the most conprehensive account of Australian astronomy to date. It is both an indispensabel reference book on the history of astronomy in Australia and a highly readable study of a scientific discipline in the context of emerging nationhood. ...
Stellarium User Guide - Skolekonsulenterne.dk
... planetarium. It will calculate the positions of the Sun and Moon, planets and stars, and draw how the sky would look to an observer depending on their location and the time. It can also draw the constellations and simulate astronomical phenomena such as meteor showers, and solar or lunar eclipses. S ...
... planetarium. It will calculate the positions of the Sun and Moon, planets and stars, and draw how the sky would look to an observer depending on their location and the time. It can also draw the constellations and simulate astronomical phenomena such as meteor showers, and solar or lunar eclipses. S ...
Parallax - Georgia State University
... • No longer reliant on specific types but assumes all are mainsequence General Definition 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 ...
... • No longer reliant on specific types but assumes all are mainsequence General Definition 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 ...
PH607lec12
... simulations using simple prescriptive formulae, to generate socalled: "semi-analytic models" (see figure). ...
... simulations using simple prescriptive formulae, to generate socalled: "semi-analytic models" (see figure). ...
DUSTiNGS III: Distribution of Intermediate
... in the near-infrared, carbon-rich AGB stars were photometrically separated from the RGB population in a few Local Group dwarf galaxies (Albert et al. 2000; Battinelli & Demers 2000; Demers & Battinelli 2002; Letarte et al. 2002; Demers et al. 2004; Battinelli & Demers 2004c,b,a). Based on comparison ...
... in the near-infrared, carbon-rich AGB stars were photometrically separated from the RGB population in a few Local Group dwarf galaxies (Albert et al. 2000; Battinelli & Demers 2000; Demers & Battinelli 2002; Letarte et al. 2002; Demers et al. 2004; Battinelli & Demers 2004c,b,a). Based on comparison ...
neutron star
... THOUGHT QUESTION According to the conservation of angular momentum, what would happen if a star orbiting in a direction opposite the neutron’s star rotation fell onto a neutron star? ...
... THOUGHT QUESTION According to the conservation of angular momentum, what would happen if a star orbiting in a direction opposite the neutron’s star rotation fell onto a neutron star? ...
Star Formation in the Rosette Complex
... ship for a total of 30 cluster sources and to extend the list of known PMS candidates to 21. They subsequently identified members coincident with ROSAT point source catalogs and compared their properties to the rest of the sample. Six of the PMS candidates were confirmed as X-ray sources. In Figure ...
... ship for a total of 30 cluster sources and to extend the list of known PMS candidates to 21. They subsequently identified members coincident with ROSAT point source catalogs and compared their properties to the rest of the sample. Six of the PMS candidates were confirmed as X-ray sources. In Figure ...
