! • Supermassive Black Holes (SMBH) at Work: Effects of
... type galaxies – Detect onset of winds – decrease in SZ signal – Detect hot halos of spirals!! see Andersen+11;Bogdan+13a,13b ...
... type galaxies – Detect onset of winds – decrease in SZ signal – Detect hot halos of spirals!! see Andersen+11;Bogdan+13a,13b ...
(massive) binary stars
... general trend are highlighted by shaded regions. for single stars in the same mass/spectral type range. We will confront our results to those of Hunter et al. (2008) and Aerts et al. (2014) to 1) check whether any of the announced correlations are found in our sample, and 2) see whether the differen ...
... general trend are highlighted by shaded regions. for single stars in the same mass/spectral type range. We will confront our results to those of Hunter et al. (2008) and Aerts et al. (2014) to 1) check whether any of the announced correlations are found in our sample, and 2) see whether the differen ...
Stellar Masses and the Main Sequence
... ~ 10 Gyr = Main sequence lifetime of the Sun ~ 2 × 1033 gm = Mass of the Sun ~ 4 × 1033 ergs/sec = Luminosity of the Sun ~ 7 × 1010 cm = Radius of the Sun ~ 6.3 × 1018 ergs/gm = Energy from hydrogen fusion ~ 27 MeV = mass defect for hydrogen fusion ~ 0.7% = percent mass defect for hydrogen fusion ~ ...
... ~ 10 Gyr = Main sequence lifetime of the Sun ~ 2 × 1033 gm = Mass of the Sun ~ 4 × 1033 ergs/sec = Luminosity of the Sun ~ 7 × 1010 cm = Radius of the Sun ~ 6.3 × 1018 ergs/gm = Energy from hydrogen fusion ~ 27 MeV = mass defect for hydrogen fusion ~ 0.7% = percent mass defect for hydrogen fusion ~ ...
Lecture 15 (pdf from the powerpoint)
... • B) As the outer layers expand, the star they become more diffuse, exposing moe hot inner layers. • C) As the atmosphere expands, the core shrinks and heats up, becoming bluer. • D) Planetary nebula are fast moving particles that heat the “inter stellar medium”. ...
... • B) As the outer layers expand, the star they become more diffuse, exposing moe hot inner layers. • C) As the atmosphere expands, the core shrinks and heats up, becoming bluer. • D) Planetary nebula are fast moving particles that heat the “inter stellar medium”. ...
hot
... (very close to Gamow’s prediction). The universe was clearly hot in its earliest phases. Gamow was right to suggest that possibility, even if (in fact) it did not lead to his proposed result of creating all the heavy elements. ...
... (very close to Gamow’s prediction). The universe was clearly hot in its earliest phases. Gamow was right to suggest that possibility, even if (in fact) it did not lead to his proposed result of creating all the heavy elements. ...
Prime Focus - Tri-City Astronomy Club
... Without conclusively identifying and characterizing the foreground star, however, astronomers have had a difficult time determining the properties of the accompanying planet. Using Hubble and the Keck Observatory, two teams of astronomers have now found that the system consists of a Uranus-sized pl ...
... Without conclusively identifying and characterizing the foreground star, however, astronomers have had a difficult time determining the properties of the accompanying planet. Using Hubble and the Keck Observatory, two teams of astronomers have now found that the system consists of a Uranus-sized pl ...
Document
... for example FIP: species with low first ionization potential are enhanced in respect to photosphere possibly because of fractionation between ions and neutral atoms ...
... for example FIP: species with low first ionization potential are enhanced in respect to photosphere possibly because of fractionation between ions and neutral atoms ...
Herschel Space Observatory - Science and Technology Facilities
... in our Galaxy, shown in red, as well as the material thrown out by the supernova itself. The ring of gas and dust contains enough material to form 25,000 Earths, but this is still only a fraction of the mass of the Sun. Supernovae are one possible source of all the dust we see. The star “CW Leonis” ...
... in our Galaxy, shown in red, as well as the material thrown out by the supernova itself. The ring of gas and dust contains enough material to form 25,000 Earths, but this is still only a fraction of the mass of the Sun. Supernovae are one possible source of all the dust we see. The star “CW Leonis” ...
ch.16_18 vocabulary
... distance behind the mirror as the object is in front Object-source of diverging light rays; may be luminous or illuminated Image-reproduction of object formed with mirrors or lenses Virtual image-point from which light rays appear to diverge without actually doing so Erect image-mirror image that po ...
... distance behind the mirror as the object is in front Object-source of diverging light rays; may be luminous or illuminated Image-reproduction of object formed with mirrors or lenses Virtual image-point from which light rays appear to diverge without actually doing so Erect image-mirror image that po ...
MHD Simulations of Line-Driven Hot-Star Winds
... magnetic equator wind collision heating of the gas (see below) X-ray. Wind material stagnated after the shock: dense and slow radiative force inefficient gravity wins: infall of wind material in the form of dense knots onto the stellar surface. Infall of dense knots: semi-regular, about every 20 ...
... magnetic equator wind collision heating of the gas (see below) X-ray. Wind material stagnated after the shock: dense and slow radiative force inefficient gravity wins: infall of wind material in the form of dense knots onto the stellar surface. Infall of dense knots: semi-regular, about every 20 ...
4.Bending Light PhET
... Click the “Download Now!” button. In the last unit, you learned that reflection occurs when light bounces off of a surface. Refraction occurs when light changes direction (bends) when entering a new medium. The laser is pointing towards water. Push the red button on the laser to turn it on. You will ...
... Click the “Download Now!” button. In the last unit, you learned that reflection occurs when light bounces off of a surface. Refraction occurs when light changes direction (bends) when entering a new medium. The laser is pointing towards water. Push the red button on the laser to turn it on. You will ...
Interstellar Astrophysics Summary notes: Part 5
... associated with dark nebulae (like the Horsehead nebula or Barnard objects – see Fig. ...
... associated with dark nebulae (like the Horsehead nebula or Barnard objects – see Fig. ...
Stellar Masses and the Main Sequence
... ~ 10 Gyr = Main sequence lifetime of the Sun ~ 2 × 1033 gm = Mass of the Sun ~ 4 × 1033 ergs/sec = Luminosity of the Sun ~ 7 × 1010 cm = Radius of the Sun ~ 6.3 × 1018 ergs/gm = Energy from hydrogen fusion ~ 27 MeV = mass defect for hydrogen fusion ~ 0.7% = percent mass defect for hydrogen fusion ~ ...
... ~ 10 Gyr = Main sequence lifetime of the Sun ~ 2 × 1033 gm = Mass of the Sun ~ 4 × 1033 ergs/sec = Luminosity of the Sun ~ 7 × 1010 cm = Radius of the Sun ~ 6.3 × 1018 ergs/gm = Energy from hydrogen fusion ~ 27 MeV = mass defect for hydrogen fusion ~ 0.7% = percent mass defect for hydrogen fusion ~ ...
Turning AGN Microlensing From a Curiosity Into a Tool
... “Einstein Ring” image of quasar host galaxy lens galaxy ...
... “Einstein Ring” image of quasar host galaxy lens galaxy ...
Article Reference - Archive ouverte UNIGE
... are located in Table 1. The mass function f(m) and the log gp are directly obtained from fitting the data. They indicate we have discovered a new transiting planet. Using the stellar mass we obtain a mass and radius for our object and find 0.55 ± 0.04 Mjup and 0.95 ± 0.03 Rjup . The Rossiter-McLaugh ...
... are located in Table 1. The mass function f(m) and the log gp are directly obtained from fitting the data. They indicate we have discovered a new transiting planet. Using the stellar mass we obtain a mass and radius for our object and find 0.55 ± 0.04 Mjup and 0.95 ± 0.03 Rjup . The Rossiter-McLaugh ...
Stellar Nebulae
... usually do not radiate their own visible light and appear dark when viewed with an optical telescope. In these cold, dense environments, many atoms can combine into molecules. Giant molecular clouds can last for 10 to 100 million years before they dissipate, due to the heat and stellar winds from ne ...
... usually do not radiate their own visible light and appear dark when viewed with an optical telescope. In these cold, dense environments, many atoms can combine into molecules. Giant molecular clouds can last for 10 to 100 million years before they dissipate, due to the heat and stellar winds from ne ...
Document
... Earth. It is made up of very hot gases with the center of the Sun measuring about 15 million °C!!! ...
... Earth. It is made up of very hot gases with the center of the Sun measuring about 15 million °C!!! ...
Red Supergiants as the Progenitors of Type IIP Supernova
... shock as it propagates through the inner regions of the hydrogen layer (in which case the helium “wall” below the He/H interface builds up), Kifonidis et al. (2003) could not observe any metal clumps that achieve to penetrate into the hydrogen envelope, in contrast to what was observed in the case o ...
... shock as it propagates through the inner regions of the hydrogen layer (in which case the helium “wall” below the He/H interface builds up), Kifonidis et al. (2003) could not observe any metal clumps that achieve to penetrate into the hydrogen envelope, in contrast to what was observed in the case o ...
Black Holes - Physics and Astronomy
... A: The two clocks will show the same amount of time has passed. B: The mountain clock will be slightly ahead (fast) C: The mountain clock will be slightly behind ...
... A: The two clocks will show the same amount of time has passed. B: The mountain clock will be slightly ahead (fast) C: The mountain clock will be slightly behind ...
Astronomical spectroscopy
Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other hot celestial objects. Spectroscopy can be used to derive many properties of distant stars and galaxies, such as their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using Doppler shift measurements.