arXiv:astro-ph/9510089 v1 17 Oct 95
... In conclusion, the observational evidence for large amounts of dark matter on galactic halo scales is overwhelming. On larger scales, the observational evidence for Ω in the 0.1 to 0.2 range is strong. On the largest scales, substantial observational evidence exists for Ω > 0.3, and some evidence fo ...
... In conclusion, the observational evidence for large amounts of dark matter on galactic halo scales is overwhelming. On larger scales, the observational evidence for Ω in the 0.1 to 0.2 range is strong. On the largest scales, substantial observational evidence exists for Ω > 0.3, and some evidence fo ...
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... tomography (OCT), infrared thermography, electrical impedance, and vibrational spectroscopy have been tested for detection of melanoma [9,10]. Dermoscopy involves the use of a handheld microscope with a magnification lens and polarized light to examine the suspect lesion down to the deeper dermis st ...
... tomography (OCT), infrared thermography, electrical impedance, and vibrational spectroscopy have been tested for detection of melanoma [9,10]. Dermoscopy involves the use of a handheld microscope with a magnification lens and polarized light to examine the suspect lesion down to the deeper dermis st ...
View - ESA
... techniques make use of Dynamical Systems Theory and have been recently given some publicity under the general term of “Interplanetary Superhighways” (Koon et al., 2001; Howell et al., 1997). The main advantage of these new techniques is that they exploit the dynamical characteristics of multi-body s ...
... techniques make use of Dynamical Systems Theory and have been recently given some publicity under the general term of “Interplanetary Superhighways” (Koon et al., 2001; Howell et al., 1997). The main advantage of these new techniques is that they exploit the dynamical characteristics of multi-body s ...
JRASC, June 2014 Issue (PDF, low resolution)
... “Even these early first-light images are almost a factor of 10 better than the previous generation of instruments,” said Bruce Macintosh of LLNL, who led the team that built the instrument. “In one minute, we were seeing planets that used to take us an hour to detect.” GPI is the first fully optimiz ...
... “Even these early first-light images are almost a factor of 10 better than the previous generation of instruments,” said Bruce Macintosh of LLNL, who led the team that built the instrument. “In one minute, we were seeing planets that used to take us an hour to detect.” GPI is the first fully optimiz ...
A Starscape in Red and Blue - Royal Astronomical Society of Canada
... “Even these early first-light images are almost a factor of 10 better than the previous generation of instruments,” said Bruce Macintosh of LLNL, who led the team that built the instrument. “In one minute, we were seeing planets that used to take us an hour to detect.” GPI is the first fully optimiz ...
... “Even these early first-light images are almost a factor of 10 better than the previous generation of instruments,” said Bruce Macintosh of LLNL, who led the team that built the instrument. “In one minute, we were seeing planets that used to take us an hour to detect.” GPI is the first fully optimiz ...
A to B - ScienceScene
... 1. The only purpose for having two eyes is to give a wide field of vision. 2. Memory plays an important role in the process of visual perception. 3. The eye-brain system can retain an image a for long time after the stimulus is removed. 4. The perception of depth occurs mainly within our brain. 5. V ...
... 1. The only purpose for having two eyes is to give a wide field of vision. 2. Memory plays an important role in the process of visual perception. 3. The eye-brain system can retain an image a for long time after the stimulus is removed. 4. The perception of depth occurs mainly within our brain. 5. V ...
Uncovering the nucleus candidate for NGC 253
... whether or not proximity implies a physical connection, but a mechanism for forming a supermassive black hole (and subsequent AGN) certainly could involve a circumnuclear starburst, given that it can process as much as ~1010 Mʘ of material in 107 − 108 years (Norman & Scoville 1988). Nevertheless, e ...
... whether or not proximity implies a physical connection, but a mechanism for forming a supermassive black hole (and subsequent AGN) certainly could involve a circumnuclear starburst, given that it can process as much as ~1010 Mʘ of material in 107 − 108 years (Norman & Scoville 1988). Nevertheless, e ...
L29 DISCOVERY OF A 500 PARSEC SHELL IN THE NUCLEUS OF
... tracting a linear fit to the background emission on either side of the shell, we measure peak surface brightnesses in the shell of 2.5, 10, and 10 MJy sr⫺1 at 5.8, 8.0, and 24 mm, respectively. These measurements are approximate (uncertain by a factor of 50%) because of the uncertainty in the fit to ...
... tracting a linear fit to the background emission on either side of the shell, we measure peak surface brightnesses in the shell of 2.5, 10, and 10 MJy sr⫺1 at 5.8, 8.0, and 24 mm, respectively. These measurements are approximate (uncertain by a factor of 50%) because of the uncertainty in the fit to ...
Star formation bursts in isolated spiral galaxies
... Accepted 2006 May 18. Received 2006 May 10; in original form 2005 July 19 ...
... Accepted 2006 May 18. Received 2006 May 10; in original form 2005 July 19 ...
Bez nadpisu
... are different because we view the region where the stream and the outer parts of the disk interact from different angles. On the other hand, the depths of the minima are different because the “nose” of the red star, which is turned toward the white dwarf, is heated by radiation from the disk. After ...
... are different because we view the region where the stream and the outer parts of the disk interact from different angles. On the other hand, the depths of the minima are different because the “nose” of the red star, which is turned toward the white dwarf, is heated by radiation from the disk. After ...
Astronomy - San Diego State University
... Joint faculty and student research activities are principally in the area of observational astrophysics. These include ongoing investigations of cosmology, eclipsing binary stars, low mass stars, planetary nebulae, galactic clusters, exterior galaxies, and extrasolar planets. Much of this work is do ...
... Joint faculty and student research activities are principally in the area of observational astrophysics. These include ongoing investigations of cosmology, eclipsing binary stars, low mass stars, planetary nebulae, galactic clusters, exterior galaxies, and extrasolar planets. Much of this work is do ...
Brown Dwarfs - The University of Toledo
... Fusion begins, but degeneracy lowers temperature: transition object M ~ 0.075 M Fusion never becomes a significant source of energy: M < 0.07 M. BD is produced. ...
... Fusion begins, but degeneracy lowers temperature: transition object M ~ 0.075 M Fusion never becomes a significant source of energy: M < 0.07 M. BD is produced. ...
No - arpdcworkshops
... Star, spectrum, spectra, astronomy, earth, science, light, color, wave, wavelength, nebula, galaxy, planet, red, shift, Hubble, telescope, binary, bang, Analyze the spectra of a variety of stars. Determine the elements that giant, dwarf, nova, supernova, are represented in each spectrum, and use thi ...
... Star, spectrum, spectra, astronomy, earth, science, light, color, wave, wavelength, nebula, galaxy, planet, red, shift, Hubble, telescope, binary, bang, Analyze the spectra of a variety of stars. Determine the elements that giant, dwarf, nova, supernova, are represented in each spectrum, and use thi ...
Paper
... epoch of the universe the temperature decreased from 105 to 3000 K, decreasing the viscosity ν for the baryonic matter if its expansion were gravitationally arrested (ρ ≈ const), and decreasing the viscous Schwarz scale LSV of condensation due to decreases in both ν and γ . The final condensation ma ...
... epoch of the universe the temperature decreased from 105 to 3000 K, decreasing the viscosity ν for the baryonic matter if its expansion were gravitationally arrested (ρ ≈ const), and decreasing the viscous Schwarz scale LSV of condensation due to decreases in both ν and γ . The final condensation ma ...
UK Exoplanet community meeting 2017
... Earth is the best studied planet we know. A century’s work on terrestrial samples has interrogated 90% of its history, and revealed the physics of processes from the formation of the core to the rise of atmospheric oxygen. This detailed understanding can benefit our perspective of exo-planetary syst ...
... Earth is the best studied planet we know. A century’s work on terrestrial samples has interrogated 90% of its history, and revealed the physics of processes from the formation of the core to the rise of atmospheric oxygen. This detailed understanding can benefit our perspective of exo-planetary syst ...
ONE- AND MULTI- ZONE MODELS: Chemical properties
... 4. the gas is chemically homogeneous at all times. The model based on these assumptions is named \simple closed-box model". When this model is applied to study the chemical history of the solar vicinity it fails to explain the metallicity distribution observed among the old eld stars. While the obs ...
... 4. the gas is chemically homogeneous at all times. The model based on these assumptions is named \simple closed-box model". When this model is applied to study the chemical history of the solar vicinity it fails to explain the metallicity distribution observed among the old eld stars. While the obs ...
Collisions and close encounters involving massive main
... We study close encounters involving massive main-sequence stars and the evolution of the exotic products of these encounters as common-envelope systems or possible hypernova progenitors. We show that parabolic encounters between low- and high-mass stars and between two high-mass stars with small per ...
... We study close encounters involving massive main-sequence stars and the evolution of the exotic products of these encounters as common-envelope systems or possible hypernova progenitors. We show that parabolic encounters between low- and high-mass stars and between two high-mass stars with small per ...
A brief review of double-pulsar system PSR J0737-3039
... window of B’s rotational phase into four equal regions, they calculated averaged light curves for each region (bottom fig.). → smooth light curves Symmetric when B axis of B phases us or A. ...
... window of B’s rotational phase into four equal regions, they calculated averaged light curves for each region (bottom fig.). → smooth light curves Symmetric when B axis of B phases us or A. ...
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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.