McDonald I....Tisserand, P. et al ExELS an
... ExELS will provide a more distant sample of hot, transiting exoplanets than obtained from the current and planned large-scale dedicated transit surveys. Yet, we will show that a space-based survey should produce many more transits than those detected by bulge-staring surveys like OGLE and SWEEPS. Th ...
... ExELS will provide a more distant sample of hot, transiting exoplanets than obtained from the current and planned large-scale dedicated transit surveys. Yet, we will show that a space-based survey should produce many more transits than those detected by bulge-staring surveys like OGLE and SWEEPS. Th ...
Associated Spectral and Temporal State Transition of the
... hole systems, the spectral nature of the ULX is distinct in having a lower temperature (∼ 2 keV) of the hot Comptonizing plasma and higher optical depth (∼ 15) than what is observed for the Galactic ones. Key words: Accretion, Accretion Discs, Black Hole Physics, X-Rays: Binaries, XRays: Galaxies, X ...
... hole systems, the spectral nature of the ULX is distinct in having a lower temperature (∼ 2 keV) of the hot Comptonizing plasma and higher optical depth (∼ 15) than what is observed for the Galactic ones. Key words: Accretion, Accretion Discs, Black Hole Physics, X-Rays: Binaries, XRays: Galaxies, X ...
Optics Refraction Dispersion
... of incidence u1 increases, The angle of incidence producing refraction u2 increases an angle of refraction equal to 90! ! (ray 4). The dashed line is the critical angle uc . For angles The critical angle,greater ...
... of incidence u1 increases, The angle of incidence producing refraction u2 increases an angle of refraction equal to 90! ! (ray 4). The dashed line is the critical angle uc . For angles The critical angle,greater ...
High spectral resolution imaging of the dynamical atmosphere of the
... the structure and dynamics of the outer atmosphere. Methods. Antares was observed between 2.28 μm and 2.31 μm with VLTI/AMBER with spectral resolutions of up to 12 000 and angular resolutions as high as 7.2 mas at two epochs with a time interval of one year. Results. The reconstructed images in indi ...
... the structure and dynamics of the outer atmosphere. Methods. Antares was observed between 2.28 μm and 2.31 μm with VLTI/AMBER with spectral resolutions of up to 12 000 and angular resolutions as high as 7.2 mas at two epochs with a time interval of one year. Results. The reconstructed images in indi ...
Star Clusters - Caltech Astronomy
... Definition of a star cluster—cluster catalogs Just what is a cluster? How many stars does it take to make a cluster? Trumpler in 1930 defined open clusters as ‘Star groupings which undoubtedly form physical systems (stars situated at the same distance and probably of the same origin) and which at th ...
... Definition of a star cluster—cluster catalogs Just what is a cluster? How many stars does it take to make a cluster? Trumpler in 1930 defined open clusters as ‘Star groupings which undoubtedly form physical systems (stars situated at the same distance and probably of the same origin) and which at th ...
Chapter 22: Reflection and Refraction of Light
... o Specular reflection produces a discernible image that can be identified Reflection from a rough surface such as cloth or wood is often called diffuse reflection. For our studies, we will assume all reflection is specular in nature unless told otherwise. The Law of Reflection From observation ...
... o Specular reflection produces a discernible image that can be identified Reflection from a rough surface such as cloth or wood is often called diffuse reflection. For our studies, we will assume all reflection is specular in nature unless told otherwise. The Law of Reflection From observation ...
Science
... Science 5- Graduated cylinder is the tool that is used to measure the volume of orange juice. 6- The units of measuring the volume of body are cubic centimeter and litre. 7- Balance scales is the tool that is used to measure the mass of vegetables. 6- Give reason for each of the following:1- The ca ...
... Science 5- Graduated cylinder is the tool that is used to measure the volume of orange juice. 6- The units of measuring the volume of body are cubic centimeter and litre. 7- Balance scales is the tool that is used to measure the mass of vegetables. 6- Give reason for each of the following:1- The ca ...
new challenges in thermo-fluiddynamic research by advanced
... availability of new equipment like high energy light sources, intensified electronical camera systems, and electronic devices as well as new software. This fact allows to reduce the time of data processing which has been very time consuming in the past. It can be distinguished between imaging and no ...
... availability of new equipment like high energy light sources, intensified electronical camera systems, and electronic devices as well as new software. This fact allows to reduce the time of data processing which has been very time consuming in the past. It can be distinguished between imaging and no ...
Discovery of Kilohertz Quasi-periodic Oscillations from 4U 1820
... magnetospheric beat frequency model nor the sonic point model of HF QPOs provides a perfect explanation of the phenomenology we observe. These results represent the first detection of kilohertz QPO activity in a globular cluster X-ray binary, and provide a new method of directly comparing the proper ...
... magnetospheric beat frequency model nor the sonic point model of HF QPOs provides a perfect explanation of the phenomenology we observe. These results represent the first detection of kilohertz QPO activity in a globular cluster X-ray binary, and provide a new method of directly comparing the proper ...
The extended structure of the dwarf irregular galaxies Sextans A and
... Sanna et al. 2010 in IC10). These weak but extended structures record crucial information on the formation and evolution of these galaxies, and provide the precious stellar test-particles to study the dynamics of these systems at large distances from their centres, thus probing their dark matter (DM ...
... Sanna et al. 2010 in IC10). These weak but extended structures record crucial information on the formation and evolution of these galaxies, and provide the precious stellar test-particles to study the dynamics of these systems at large distances from their centres, thus probing their dark matter (DM ...
Star Wreck
... Electrically Charged Solitons (SECS) [3]. In a neutron star, where all nucleons are electrically neutral, there is no difference between SENS and SECS. However, when we discuss the fate of the white dwarfs, we will have to make a distinction between the two types. When a neutron star is born in a su ...
... Electrically Charged Solitons (SECS) [3]. In a neutron star, where all nucleons are electrically neutral, there is no difference between SENS and SECS. However, when we discuss the fate of the white dwarfs, we will have to make a distinction between the two types. When a neutron star is born in a su ...
Microscopes
... Fluorescent Microscopy • One of the most prevalent techniques • Allows (requires) a probe specific to molecule of interest • BUT: you are visualizing the probe, not the object of study – This is even true of GFP-labeled proteins the GFP moiety is often considerably smaller than the protein ...
... Fluorescent Microscopy • One of the most prevalent techniques • Allows (requires) a probe specific to molecule of interest • BUT: you are visualizing the probe, not the object of study – This is even true of GFP-labeled proteins the GFP moiety is often considerably smaller than the protein ...
The Big Bang Theory
... a distant galaxy moving away from us is proportional to its distance from us. - Therefore, we conclude that the universe is expanding uniformly V = H×r , where H= Hubble’s constant ~ 50-100 km/secMPc, r = Distance of galaxy from us and V= velocity ...
... a distant galaxy moving away from us is proportional to its distance from us. - Therefore, we conclude that the universe is expanding uniformly V = H×r , where H= Hubble’s constant ~ 50-100 km/secMPc, r = Distance of galaxy from us and V= velocity ...
Quasi Light Fields: A Model of Coherent Image Formation
... The light field represents radiance as a function of position and direction, thereby decomposing optical power flow along rays. The light field is an important tool in incoherent imaging applications, where it is used to dynamically generate different viewpoints for computer graphics rendering, comp ...
... The light field represents radiance as a function of position and direction, thereby decomposing optical power flow along rays. The light field is an important tool in incoherent imaging applications, where it is used to dynamically generate different viewpoints for computer graphics rendering, comp ...
Radiation feedback in star formation simulations
... ● How do supernovae interact with HII regions and clouds? ● How do supernovae interact with HII regions and clouds? ● Can we explain self-regulation of star formation? ● Can we explain self-regulation of star formation? ● Interaction between observational techniques and simulations ● Interaction bet ...
... ● How do supernovae interact with HII regions and clouds? ● How do supernovae interact with HII regions and clouds? ● Can we explain self-regulation of star formation? ● Can we explain self-regulation of star formation? ● Interaction between observational techniques and simulations ● Interaction bet ...
00 Fourier optics – 4f Arrangement – Filtering and reconstruction
... and of evaporation of the liquid!) – intermediate level adjustment – a standing sound field is generated in the glass cell. It serves as a phase grid for the light wave which is incident perpendicular to it (see theory). In this state also, one notices no change of any kind on the observation screen ...
... and of evaporation of the liquid!) – intermediate level adjustment – a standing sound field is generated in the glass cell. It serves as a phase grid for the light wave which is incident perpendicular to it (see theory). In this state also, one notices no change of any kind on the observation screen ...
Low frequency radio observations of gamma-ray binaries
... new ideas and new theoretical perspectives are taken into account in order to maintain a consistent model which explains the observations of high energy sources. High-Energy Astrophysics is the study of those astrophysical systems displaying X-ray or gamma-ray emission, but also those which emits ne ...
... new ideas and new theoretical perspectives are taken into account in order to maintain a consistent model which explains the observations of high energy sources. High-Energy Astrophysics is the study of those astrophysical systems displaying X-ray or gamma-ray emission, but also those which emits ne ...
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.