the harps-terra project. i. description of the algorithms, performance
... by the calibration fiber are typically smaller than 0.5 m s−1 . Long exposures (t >200 s) using the calibration fiber cause leaks of the Th/Ar spectrum on the science spectrum, so the calibration fiber is only used when observing very bright targets and when extreme RV precision is required. The lis ...
... by the calibration fiber are typically smaller than 0.5 m s−1 . Long exposures (t >200 s) using the calibration fiber cause leaks of the Th/Ar spectrum on the science spectrum, so the calibration fiber is only used when observing very bright targets and when extreme RV precision is required. The lis ...
Electrically Excited Inverse Electron Spin Resonance in a Split
... The excitation condition for the ESR signal in GGG is not fulfilled. • black curve for 86 GHz • green curve for 110 GHz ...
... The excitation condition for the ESR signal in GGG is not fulfilled. • black curve for 86 GHz • green curve for 110 GHz ...
Mindfiesta Page 1 CHAPTER – 10 WAVE OPTICS EXPERTS TIPS
... (45) There are two values of the angle of incidence, for which a ray passing through a prism deviates through a given angle. (46) A prism always deviates a ray of light towards its base. When a prism, made of material of refractive index// is placed in a medium of refractive index ’ (’<), the pri ...
... (45) There are two values of the angle of incidence, for which a ray passing through a prism deviates through a given angle. (46) A prism always deviates a ray of light towards its base. When a prism, made of material of refractive index// is placed in a medium of refractive index ’ (’<), the pri ...
Near-uniform internal rotation of the main sequence γ Doradus
... Kepler observations show that the problem already exists on the main sequence. Two asteroseismic studies of rotation in main-sequence A stars have yielded uniform profiles, with core-to-surface rotation period ratios Pcore /Psurface = 0.93 (KIC 11145123, Kurtz et al. 2014) and 0.97 (KIC 9244992, Sai ...
... Kepler observations show that the problem already exists on the main sequence. Two asteroseismic studies of rotation in main-sequence A stars have yielded uniform profiles, with core-to-surface rotation period ratios Pcore /Psurface = 0.93 (KIC 11145123, Kurtz et al. 2014) and 0.97 (KIC 9244992, Sai ...
Recen t Scien ti c
... transients (SXT) and Be/X-ray binaries seen in the Milky Way Galaxy. We have observed some of these transient sources with the HST when they are X-ray bright, and again when they become X-ray dim to look for corresponding changes in the optical band to help identify these objects and con rm their cl ...
... transients (SXT) and Be/X-ray binaries seen in the Milky Way Galaxy. We have observed some of these transient sources with the HST when they are X-ray bright, and again when they become X-ray dim to look for corresponding changes in the optical band to help identify these objects and con rm their cl ...
Complete set of notes, one file
... directionality involved other than if the energy impinges on the area from `above' or `below'. It's therefore often convenient to divide the contributions to the ux into the `upward' ...
... directionality involved other than if the energy impinges on the area from `above' or `below'. It's therefore often convenient to divide the contributions to the ux into the `upward' ...
A breath of oxygen for the Sun
... The present detailed analysis reveals that the decrease in the derived solar oxygen abundance from the value of about A(O)=8.9 to the one of Holweger (2001), A(O) = 8.73, is due to an improvement in the atomic data and a result of taking into account deviations from local thermodynamic equilibrium ( ...
... The present detailed analysis reveals that the decrease in the derived solar oxygen abundance from the value of about A(O)=8.9 to the one of Holweger (2001), A(O) = 8.73, is due to an improvement in the atomic data and a result of taking into account deviations from local thermodynamic equilibrium ( ...
Nikolic_Silvana
... ratio of two radiatively decoupled gas phase components of equal surface filling factors show that the majority of the clouds can be classified as either of ”hot core” type, i.e., the warmer gas component is the denser one, or ”hot envelope” objects, where the warmer gas phase is more diffuse. ...
... ratio of two radiatively decoupled gas phase components of equal surface filling factors show that the majority of the clouds can be classified as either of ”hot core” type, i.e., the warmer gas component is the denser one, or ”hot envelope” objects, where the warmer gas phase is more diffuse. ...
Chapter 5 Nuclear reactions in stars
... energy transport. The term ∆∇ is the superadiabaticity of the temperature gradient that must follow from a theory of convection (in practice, the mixing length theory); for the interior one can take ∆∇ = 0 except in the outermost layers of a star. Finally, eq. (6.5) has been modified to add ‘mixing ...
... energy transport. The term ∆∇ is the superadiabaticity of the temperature gradient that must follow from a theory of convection (in practice, the mixing length theory); for the interior one can take ∆∇ = 0 except in the outermost layers of a star. Finally, eq. (6.5) has been modified to add ‘mixing ...
Chapter 25 - apel slice
... television show can be carried by a wave. The answer is rather interesting. When radio waves are transmitted, one of two characteristics of the wave can be varied---either the amplitude of the wave or the frequency of the wave. The variation in either amplitude or frequency of a wave is called modul ...
... television show can be carried by a wave. The answer is rather interesting. When radio waves are transmitted, one of two characteristics of the wave can be varied---either the amplitude of the wave or the frequency of the wave. The variation in either amplitude or frequency of a wave is called modul ...
First Results from the WISE Enhanced Resolution Galaxy Atlas
... archive and public release catalogs have either completely missed nearby galaxies or, even worse, their integrated fluxes are systematically underestimated (because they are measured as point sources) and often chopped into smaller pieces. However, the WISE public-release imaging products do capture ...
... archive and public release catalogs have either completely missed nearby galaxies or, even worse, their integrated fluxes are systematically underestimated (because they are measured as point sources) and often chopped into smaller pieces. However, the WISE public-release imaging products do capture ...
Black Hole
... The event horizon defines a black hole: a black hole is any object contained within its event horizon, that is, any object with a high enough density so that light cannot escape from the gravity surrounding that object. There is an event horizon radius for objects of any mass, not simply objects of ...
... The event horizon defines a black hole: a black hole is any object contained within its event horizon, that is, any object with a high enough density so that light cannot escape from the gravity surrounding that object. There is an event horizon radius for objects of any mass, not simply objects of ...
AST1100 Lecture Notes
... When the hydrogen in the core has been exhausted, the forces of pressure are not any longer strong enough to sustain the forces of gravity. The hydrostatic equilibrium is lost and the core starts contracting. During the core contraction, the temperature in and around the core increases. The tempera ...
... When the hydrogen in the core has been exhausted, the forces of pressure are not any longer strong enough to sustain the forces of gravity. The hydrostatic equilibrium is lost and the core starts contracting. During the core contraction, the temperature in and around the core increases. The tempera ...
Highligh in Physics 2005
... (outbursts). While T Tauri stars usually have rather low accretion rates (of the order of 10-8 M/yr), during the outburst the accretion rate can reach a few times 10-4 M/yr. Even if the spread in outburst properties is rather large, they are supposed to last for a few thousand years. Most of the m ...
... (outbursts). While T Tauri stars usually have rather low accretion rates (of the order of 10-8 M/yr), during the outburst the accretion rate can reach a few times 10-4 M/yr. Even if the spread in outburst properties is rather large, they are supposed to last for a few thousand years. Most of the m ...
space research in slovakia - Astronomical Institute WWW Homepage
... model to ultraviolet spectra of other symbiotics demonstrated their peculiar profile [17]. High resolution UV spectrum of the emission line He II 1640 A from the HST (Hubble Space Telescope) archive was analysed to study accretion process in the symbiotic star EG And [6]. Investigation of the space ...
... model to ultraviolet spectra of other symbiotics demonstrated their peculiar profile [17]. High resolution UV spectrum of the emission line He II 1640 A from the HST (Hubble Space Telescope) archive was analysed to study accretion process in the symbiotic star EG And [6]. Investigation of the space ...
microscopy DAMOP poster - Yavuz Lab!
... Over the last two decades, nanoscale optical microscopy has been the subject of intense research [1]. While it is well known that the Abbe Limit physically constrains how well a beam of light can resolve a sample, several techniques are being investigated and employed which work around this limit: J ...
... Over the last two decades, nanoscale optical microscopy has been the subject of intense research [1]. While it is well known that the Abbe Limit physically constrains how well a beam of light can resolve a sample, several techniques are being investigated and employed which work around this limit: J ...
626KB - NZQA
... The top of the mirror needs to be just above eye level to be able to see her head. AND The light from her feet is reflected off the mirror at the midpoint between the floor and the eye level to be able to see her feet is supported by the ray diagram (although this may not ...
... The top of the mirror needs to be just above eye level to be able to see her head. AND The light from her feet is reflected off the mirror at the midpoint between the floor and the eye level to be able to see her feet is supported by the ray diagram (although this may not ...
NCEA Level 1 Physics (90938) 2012
... exactly what proportion is not marked) because loudness depends on amplitude. A pulse is a single disturbance / crest / trough that moves through a medium from one point to the next point. OR A pulse transfers a small amount of energy from one point to the next point in the medium. ...
... exactly what proportion is not marked) because loudness depends on amplitude. A pulse is a single disturbance / crest / trough that moves through a medium from one point to the next point. OR A pulse transfers a small amount of energy from one point to the next point in the medium. ...
Accurate determination of the rotational constants of ultracold
... from precision mmeasurement to quantum information storage and processing [1–3]. Photoassociation (PA) of the ultracold atoms has been established as a versatile tool in the formation of the ultracold molecules [4]. The PA process is dependent on the collisional interaction properties. On the other ...
... from precision mmeasurement to quantum information storage and processing [1–3]. Photoassociation (PA) of the ultracold atoms has been established as a versatile tool in the formation of the ultracold molecules [4]. The PA process is dependent on the collisional interaction properties. On the other ...
PDF: 27 pages, 167 KB - Quantum aspects of the world
... This shows that when time changes by the amount 1 ê n, the phase again changes by 2 p; that is, one wave cycle moves past a fixed point in time 1 ê n . The number of cycles (of spatial length l) which pass by per second which is the reciprocal of the time required for one cycle to pass by. This is c ...
... This shows that when time changes by the amount 1 ê n, the phase again changes by 2 p; that is, one wave cycle moves past a fixed point in time 1 ê n . The number of cycles (of spatial length l) which pass by per second which is the reciprocal of the time required for one cycle to pass by. This is c ...
Interactive 4 - Hertzsprung-Russell Diagram Explorer
... https://www.youtube.com/watch?v=mkktE_fs4NA Science Channel: How the Universe Works - A Star is Born 2. The life cycle of stars and nuclear fusion https://www.youtube.com/watch?v=PM9CQDlQI0A Institute of Physics: The Life Cycle of Stars 3. Nuclear fusion https://www.youtube.com/watch?v=Ux33-5k8cjg V ...
... https://www.youtube.com/watch?v=mkktE_fs4NA Science Channel: How the Universe Works - A Star is Born 2. The life cycle of stars and nuclear fusion https://www.youtube.com/watch?v=PM9CQDlQI0A Institute of Physics: The Life Cycle of Stars 3. Nuclear fusion https://www.youtube.com/watch?v=Ux33-5k8cjg V ...
March 2016 BRAS Addendum Newsletter
... concentration of stars; large range in brightness; very large, bright. M 41contains contrasting blue, yellow, and orange stars with a giant reddish star (12 CMa) at mag. 6.93 in its center and a lot of bright blue giant stars in the cluster. M 41 is located 4° south and ½° east of Sirius. There are ...
... concentration of stars; large range in brightness; very large, bright. M 41contains contrasting blue, yellow, and orange stars with a giant reddish star (12 CMa) at mag. 6.93 in its center and a lot of bright blue giant stars in the cluster. M 41 is located 4° south and ½° east of Sirius. There are ...
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.