Spectral Analysis Lab
... same color. Scientists have found that they can learn a great deal about a star’s temperature and composition by analyzing the light it emits. How is this possible? When white light passes through a prism, it appears as a continuous band of colors ranging from violet to red. These bands of color are ...
... same color. Scientists have found that they can learn a great deal about a star’s temperature and composition by analyzing the light it emits. How is this possible? When white light passes through a prism, it appears as a continuous band of colors ranging from violet to red. These bands of color are ...
Measuring the Milky Way
... These objects are very close to the Galactic center. The orbit on the right is the best fit; it assumes a central black hole of 3.7 million solar masses. ...
... These objects are very close to the Galactic center. The orbit on the right is the best fit; it assumes a central black hole of 3.7 million solar masses. ...
chapter 26 instructor notes
... abundant than spirals in rich clusters of galaxies, for example. Computer simulations have confirmed the possibility of such a mechanism, but keep in mind that computer simulations have reproduced a variety of possible galaxy scenarios, some of which have not yet been observed. ...
... abundant than spirals in rich clusters of galaxies, for example. Computer simulations have confirmed the possibility of such a mechanism, but keep in mind that computer simulations have reproduced a variety of possible galaxy scenarios, some of which have not yet been observed. ...
Dear Leif - LEIF.org
... The paper by Wolff and Patrone narrates one of those fairy tales that has not gripped me sufficiently to read beyond the first few pages. It appears to be an example of the product of certain undergraduate physics courses, against which I have (successfully) fought in my university, in which student ...
... The paper by Wolff and Patrone narrates one of those fairy tales that has not gripped me sufficiently to read beyond the first few pages. It appears to be an example of the product of certain undergraduate physics courses, against which I have (successfully) fought in my university, in which student ...
Dear Leif - LEIF.org
... The paper by Wolff and Patrone narrates one of those fairy tales that has not gripped me sufficiently to read beyond the first few pages. It appears to be an example of the product of certain undergraduate physics courses, against which I have (successfully) fought in my university, in which student ...
... The paper by Wolff and Patrone narrates one of those fairy tales that has not gripped me sufficiently to read beyond the first few pages. It appears to be an example of the product of certain undergraduate physics courses, against which I have (successfully) fought in my university, in which student ...
Infrared Instrumentation & Observing Techniques
... The small and large scale radio source are aligned to within about 10 deg. The radio sources are aligned to within a few degrees of perpendicular to the “inner" (1 kpc) dust disk but are poorly aligned with the perpendicular to the larger dust lane. The Bardeen-Petterson effect will cause the b ...
... The small and large scale radio source are aligned to within about 10 deg. The radio sources are aligned to within a few degrees of perpendicular to the “inner" (1 kpc) dust disk but are poorly aligned with the perpendicular to the larger dust lane. The Bardeen-Petterson effect will cause the b ...
In This Issue The Hottest Planet in the Solar System President`s Article
... degrees. Additionally, our average surface temperature would be significantly colder, at around 0 °F (-18 °C), as our atmosphere functions like a blanket: trapping a portion of the heat radiated by our planet and making the entire atmosphere more uniform in temperature. But it's the second planet f ...
... degrees. Additionally, our average surface temperature would be significantly colder, at around 0 °F (-18 °C), as our atmosphere functions like a blanket: trapping a portion of the heat radiated by our planet and making the entire atmosphere more uniform in temperature. But it's the second planet f ...
Lecture 2: Gravitational wave sources
... single frequency for a long time, so the signal builds up in a narrow frequency bin. As a result, particularly for high frequencies observable with ground-based detectors, continuous-wave sources are interesting because they can in principle be seen even at relatively low amplitudes. • Bursts. These ...
... single frequency for a long time, so the signal builds up in a narrow frequency bin. As a result, particularly for high frequencies observable with ground-based detectors, continuous-wave sources are interesting because they can in principle be seen even at relatively low amplitudes. • Bursts. These ...
laboratory 1: digital imaging with ds9
... We are interested in the open clusters, which typically are “closer” to Earth than the other “globular” clusters. The stars in an open cluster are gravitationally linked and “move” as a group, but the angular separations between individual stars are still rather large so that the individual stars ma ...
... We are interested in the open clusters, which typically are “closer” to Earth than the other “globular” clusters. The stars in an open cluster are gravitationally linked and “move” as a group, but the angular separations between individual stars are still rather large so that the individual stars ma ...
A billion pixels, a billion stars
... stars within that telescope’s field of view (figure 1a). However, with two telescopes that are separated by a (very precisely known) large angle, and that each feed light into a single optical camera, it is possible to measure parallaxes absolutely (figure 1b). This two-telescope method of measuring ...
... stars within that telescope’s field of view (figure 1a). However, with two telescopes that are separated by a (very precisely known) large angle, and that each feed light into a single optical camera, it is possible to measure parallaxes absolutely (figure 1b). This two-telescope method of measuring ...
GRB Effects
... The late Ordovician is unusual in that many groups like the trilobites, important Ordovician animal groups in terms of their relative abundance, diversity, and geographic range, go extinct while the more restricted groups persist. ...
... The late Ordovician is unusual in that many groups like the trilobites, important Ordovician animal groups in terms of their relative abundance, diversity, and geographic range, go extinct while the more restricted groups persist. ...
L5 Protoplanetary disks Part I
... Spectral features Before direct images of disks were made, it was noted that some stars have peculiarities in their spectra which were attributed to the presence of material in orbit. 1) Infrared excess ...
... Spectral features Before direct images of disks were made, it was noted that some stars have peculiarities in their spectra which were attributed to the presence of material in orbit. 1) Infrared excess ...
IMR_Star Theater
... walls and ceiling works best. A room that is roughly square and no larger than 12 x 12 feet provides the best projection quality. Star Theater works best when it is located two to six feet from the projection surface. 2. Date selector is located on the light wand. To set your planetarium for the beg ...
... walls and ceiling works best. A room that is roughly square and no larger than 12 x 12 feet provides the best projection quality. Star Theater works best when it is located two to six feet from the projection surface. 2. Date selector is located on the light wand. To set your planetarium for the beg ...
R136a1
RMC 136a1 (usually abbreviated to R136a1) is a Wolf-Rayet star located at the center of R136, the central condensation of stars of the large NGC 2070 open cluster in the Tarantula Nebula. It lies at a distance of about 50 kiloparsecs (163,000 light-years) in the Large Magellanic Cloud. It has the highest mass and luminosity of any known star, at 265 M☉ and 8.7 million L☉, and also one of the hottest at over 50,000 K.