Stars and Light
... • Material for problem about Kepler satellite was not adequately covered, so everyone was given 4 points for this problem. • Your answers, the answer key, and the test are all on ICON. • Office hours this Tuesday will be 1-2 pm. ...
... • Material for problem about Kepler satellite was not adequately covered, so everyone was given 4 points for this problem. • Your answers, the answer key, and the test are all on ICON. • Office hours this Tuesday will be 1-2 pm. ...
File
... Color and Temperature Thermal Radiation (heat) at the surface depends on the average energy emitted from the surface. • Temperature can be deduced from the color of its emitted light. • In general, hot stars emit blue light; cooler stars emit red ...
... Color and Temperature Thermal Radiation (heat) at the surface depends on the average energy emitted from the surface. • Temperature can be deduced from the color of its emitted light. • In general, hot stars emit blue light; cooler stars emit red ...
TNO Time Allocation Committee
... Previous observations of SDSS J1021+1744 at TNO were part of the proposal “White Dwarf Binaries: Follow-up on three eclipsing WDMS binaries” with N. Sanguansak as the PI. The proposal was awarded three nights of observations using ULTRASPEC. Our target star was also observed several times during the ...
... Previous observations of SDSS J1021+1744 at TNO were part of the proposal “White Dwarf Binaries: Follow-up on three eclipsing WDMS binaries” with N. Sanguansak as the PI. The proposal was awarded three nights of observations using ULTRASPEC. Our target star was also observed several times during the ...
charts_set_9
... 1) All stars in a cluster formed at about same time (so all have same age) 2) All stars are at about the same distance 3) All stars have same chemical composition ...
... 1) All stars in a cluster formed at about same time (so all have same age) 2) All stars are at about the same distance 3) All stars have same chemical composition ...
Document
... Elements heavier than Lead are produced in the explosion and ejected into space. Stars do recycle. The ejected material often attain speeds of 100,000 km/sec. Close to 150 supernova remnants have been detected in the Milky Way. There are smaller numbers of massive stars and so smaller amount of exp ...
... Elements heavier than Lead are produced in the explosion and ejected into space. Stars do recycle. The ejected material often attain speeds of 100,000 km/sec. Close to 150 supernova remnants have been detected in the Milky Way. There are smaller numbers of massive stars and so smaller amount of exp ...
Slide 1
... system. You can see the vertical green plasma jet which is guided by the star’s magnetic field. The white zones are gas and dust, being illuminated from inside by the young star. The dark central zone is where the dust is so optically thick that the light is not being transmitted. ...
... system. You can see the vertical green plasma jet which is guided by the star’s magnetic field. The white zones are gas and dust, being illuminated from inside by the young star. The dark central zone is where the dust is so optically thick that the light is not being transmitted. ...
Separating Stars and Galaxies Based on Color
... can be thought of as a very low resolution spectrum. We define an object’s color as the (log) ratio of the fluxes in two filters. Due to the limited number of such filters, ambiguities between object types appear, as objects with very different spectra can have very similar colors. The Deep Lens Sur ...
... can be thought of as a very low resolution spectrum. We define an object’s color as the (log) ratio of the fluxes in two filters. Due to the limited number of such filters, ambiguities between object types appear, as objects with very different spectra can have very similar colors. The Deep Lens Sur ...
VLT/FORS Surveys of Wolf-Rayet Stars beyond the
... star leaves the main sequence and becomes a blue supergiant, and ultimately a red supergiant (RSG) for stars with initial mass up to perhaps 20–30 MA. Observationally, there is an absence of luminous RSGs, known as the Humphreys-Davidson limit, such that initially more massive stars circumvent the R ...
... star leaves the main sequence and becomes a blue supergiant, and ultimately a red supergiant (RSG) for stars with initial mass up to perhaps 20–30 MA. Observationally, there is an absence of luminous RSGs, known as the Humphreys-Davidson limit, such that initially more massive stars circumvent the R ...
Nebulae - Innovative Teachers BG
... Planetary Nebulae Planetary nebulae in their Photography by Emil Ivanov physical nature are different from nebulae discussed above and being essentially gas-dust clouds. Planetary nebula is an evolution phase of stars with masses 7-8 solar masses and greater. When a star forward in its evolution, l ...
... Planetary Nebulae Planetary nebulae in their Photography by Emil Ivanov physical nature are different from nebulae discussed above and being essentially gas-dust clouds. Planetary nebula is an evolution phase of stars with masses 7-8 solar masses and greater. When a star forward in its evolution, l ...
Exploring The Universe
... • Spectral lines reveal the composition of stars. • The spectra of most stars have dark lines caused by gases in the outer layers that absorb light at that wavelength. • Each element produces a unique pattern of spectral lines. ...
... • Spectral lines reveal the composition of stars. • The spectra of most stars have dark lines caused by gases in the outer layers that absorb light at that wavelength. • Each element produces a unique pattern of spectral lines. ...
PHY2083
... Luminosity does NOT depend on distance, but flux does. If a star appears faint, is it because it is really (i.e. intrinsically) faint, or because it is very far away [or ...
... Luminosity does NOT depend on distance, but flux does. If a star appears faint, is it because it is really (i.e. intrinsically) faint, or because it is very far away [or ...
Disk-planet interaction
... eccentricity is strongly damped. Only if and when the gap becomes so wide that the near-lying LRs are eliminated, eccentricity is excited. (==> planets larger than 10 m_jup were predicted to be on eccentric orbits (Artymowicz 1992). In practice, this may account for intermediate-e exoplanets. For ex ...
... eccentricity is strongly damped. Only if and when the gap becomes so wide that the near-lying LRs are eliminated, eccentricity is excited. (==> planets larger than 10 m_jup were predicted to be on eccentric orbits (Artymowicz 1992). In practice, this may account for intermediate-e exoplanets. For ex ...
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... • Stars of given type of spectrum and the same colors have the same absolute magnitude (99.9%) • Stars have different apparent magnitudes depending on their distance. • Stars behind dust clouds look redder than they are intrinsically, so… m-M=5 log d1 –5+ A(l) (i.e., the star looks fainter) ...
... • Stars of given type of spectrum and the same colors have the same absolute magnitude (99.9%) • Stars have different apparent magnitudes depending on their distance. • Stars behind dust clouds look redder than they are intrinsically, so… m-M=5 log d1 –5+ A(l) (i.e., the star looks fainter) ...
6.2 Measuring the Planets
... Some were left with extremely eccentric orbits and appear in the inner solar system as comets. ...
... Some were left with extremely eccentric orbits and appear in the inner solar system as comets. ...
DTU9ePPTChap13 - Faculty Lounge : Astronomy
... stars. (b) When the progenitor star of SN 1987A was still a red supergiant, a slowly moving wind from the star filled the surrounding space with a thin gas. When the star contracted into a blue supergiant, it produced a faster-moving stellar wind. The interaction between the fast and slow winds some ...
... stars. (b) When the progenitor star of SN 1987A was still a red supergiant, a slowly moving wind from the star filled the surrounding space with a thin gas. When the star contracted into a blue supergiant, it produced a faster-moving stellar wind. The interaction between the fast and slow winds some ...
Transit surveys for Earths in the habitable zones of white dwarfs
... requires that at least three epochs fall within transit with two points each detected at >7σ. The LSST survey will be biased toward detecting shorter period (∝ P −4/3 ) and large-size planets that have yet to enter the WDHZ since their stars are hotter. This could be improved by either continuously ...
... requires that at least three epochs fall within transit with two points each detected at >7σ. The LSST survey will be biased toward detecting shorter period (∝ P −4/3 ) and large-size planets that have yet to enter the WDHZ since their stars are hotter. This could be improved by either continuously ...
Color and Temperature of Stars
... radiation that has the amount of energy corresponding to the line. For example, the spectrum of the visible light coming from the sun has a group of absorption lines in the green part of the spectrum. Calcium in an outer layer of the sun absorbs light rays that would have produced the corresponding ...
... radiation that has the amount of energy corresponding to the line. For example, the spectrum of the visible light coming from the sun has a group of absorption lines in the green part of the spectrum. Calcium in an outer layer of the sun absorbs light rays that would have produced the corresponding ...