SPT 0538−50: PHYSICAL CONDITIONS IN THE ISM OF A STRONGLY... GALAXY AT Z=2.8
... In recent years, the study of lensed starburst systems at high redshift has offered invaluable insight into the behavior and physics of these dust-obscured systems. Strong gravitational lensing provides an effective boost in both sensitivity and angular resolution, allowing highly detailed analyses ...
... In recent years, the study of lensed starburst systems at high redshift has offered invaluable insight into the behavior and physics of these dust-obscured systems. Strong gravitational lensing provides an effective boost in both sensitivity and angular resolution, allowing highly detailed analyses ...
Investigating the Spectral Energy Distribution TARA JILL PARKIN
... photons. All stars enrich the ISM with their ejecta through this feedback effect, and impact how a galaxy evolves. Material (i.e. gas and dust) from the outer layers of evolved stars mixes with the contents of the ISM already present, changing the chemical make-up of the ISM over time. The abundance ...
... photons. All stars enrich the ISM with their ejecta through this feedback effect, and impact how a galaxy evolves. Material (i.e. gas and dust) from the outer layers of evolved stars mixes with the contents of the ISM already present, changing the chemical make-up of the ISM over time. The abundance ...
Astronomy, Astrophysics, and Cosmology
... Star formation Stars are born when gaseous clouds (mostly hydrogen) contract due to pull of gravity Huge gas cloud fragments into numerous contracting masses Each mass is centered in area where density is only slightly greater than @ nearby points Once such “globules” formed gravity would cause each ...
... Star formation Stars are born when gaseous clouds (mostly hydrogen) contract due to pull of gravity Huge gas cloud fragments into numerous contracting masses Each mass is centered in area where density is only slightly greater than @ nearby points Once such “globules” formed gravity would cause each ...
Night Sky Observations
... England; it is the same everywhere, anytime! South African Standard Time: GMT +2 hours. If the GMT is 15h00, SAST will be 17h00. Constellation: A pattern of stars connected with imaginary lines to form a figure in the sky. Constellation boundary: The whole sky is divided into 88 official “patches” a ...
... England; it is the same everywhere, anytime! South African Standard Time: GMT +2 hours. If the GMT is 15h00, SAST will be 17h00. Constellation: A pattern of stars connected with imaginary lines to form a figure in the sky. Constellation boundary: The whole sky is divided into 88 official “patches” a ...
Mendes, M. J., et al., Design of optimized wave
... employed to model the electric-field distribution produced in the structures considered here. Recently, current enhancement in solar cells has been demonstrated by coating their front TCO layer with a monolayer of dielectric wavelength-sized particles such as arrays of close-packed silica spheres [16 ...
... employed to model the electric-field distribution produced in the structures considered here. Recently, current enhancement in solar cells has been demonstrated by coating their front TCO layer with a monolayer of dielectric wavelength-sized particles such as arrays of close-packed silica spheres [16 ...
Testing - uwyo.edu
... temperature rises above 107 K. • Thermal pressure cannot stop contraction because the star is constantly losing thermal energy from its surface through radiation. • Is there another form of pressure that can stop ...
... temperature rises above 107 K. • Thermal pressure cannot stop contraction because the star is constantly losing thermal energy from its surface through radiation. • Is there another form of pressure that can stop ...
Supernovae
... to the level where the thermal and degenerate-electron pressure components become comparable and the material begins to expand, but at that time, the expansion is unable to quench the fast thermonuclear burning of carbon that is ignited in the center of a white dwarf. Ignition starts a supernova Ia ...
... to the level where the thermal and degenerate-electron pressure components become comparable and the material begins to expand, but at that time, the expansion is unable to quench the fast thermonuclear burning of carbon that is ignited in the center of a white dwarf. Ignition starts a supernova Ia ...
Analyzing optical spectra by computer simulation
... The last steps of spectrum analysis by computer simulation are the selection and adjustment of those model parameters which are to be determined by the method. Since the total fit deviation will depend on the fit parameter values in a very nonlinear and in most cases unpredictable way, there may be ...
... The last steps of spectrum analysis by computer simulation are the selection and adjustment of those model parameters which are to be determined by the method. Since the total fit deviation will depend on the fit parameter values in a very nonlinear and in most cases unpredictable way, there may be ...
Get PDF - OSA Publishing
... + 兩兩2 cos2共 / 2兲兴1/2. Slow-light propagation can be observed due to the reduction of the normalized group velocity 共vg = d / d兲 when the pulse frequency is tuned close to the bandgap edge, where the propagating waves with real  are absent. We find that different regimes of slow light can be rea ...
... + 兩兩2 cos2共 / 2兲兴1/2. Slow-light propagation can be observed due to the reduction of the normalized group velocity 共vg = d / d兲 when the pulse frequency is tuned close to the bandgap edge, where the propagating waves with real  are absent. We find that different regimes of slow light can be rea ...
The SCUBA-2 Cosmology Legacy Survey: blank
... by each bolometer is then assumed to be a linear combination of: (a) a common mode signal dominated by atmospheric water and ambient thermal emission; (b) the astronomical signal (attenuated by atmospheric extinction) and finally (c) a noise term, taken to be the combination of any additional signal ...
... by each bolometer is then assumed to be a linear combination of: (a) a common mode signal dominated by atmospheric water and ambient thermal emission; (b) the astronomical signal (attenuated by atmospheric extinction) and finally (c) a noise term, taken to be the combination of any additional signal ...
Difficulties associated with working with UV and IR optics
... Reflective coatings are limited to wavelengths greater than 0.15 microns if they are to be broadband, though narrow bandwidth filters can be designed for lower wavelengths [1]. One of the difficulties associated with coating UV optics is that coatings are applied at high temperatures, so stress is i ...
... Reflective coatings are limited to wavelengths greater than 0.15 microns if they are to be broadband, though narrow bandwidth filters can be designed for lower wavelengths [1]. One of the difficulties associated with coating UV optics is that coatings are applied at high temperatures, so stress is i ...
Plasma Sources and Feedback Control in Pretreatment Web
... the nature of polymers as well as humidity, the process needs to be controlled in order to maintain these “clean” conditions. By controlling the chromium emission intensity as shown in Figure 8, these processes can be kept constant. It is also critical that the process be controlled so that no exces ...
... the nature of polymers as well as humidity, the process needs to be controlled in order to maintain these “clean” conditions. By controlling the chromium emission intensity as shown in Figure 8, these processes can be kept constant. It is also critical that the process be controlled so that no exces ...
Edge-enhanced imaging with polyvinyl alcohol/acrylamide photopolymer gratings 1510
... of the imaging system, facilitating spatial filtering operations with no need for a physical Fourier plane. We demonstrate that Kogelnik’s coupled-wave theory can be used to calculate the transfer function for the transmitted and the diffracted orders. The experimental and simulated results agree, a ...
... of the imaging system, facilitating spatial filtering operations with no need for a physical Fourier plane. We demonstrate that Kogelnik’s coupled-wave theory can be used to calculate the transfer function for the transmitted and the diffracted orders. The experimental and simulated results agree, a ...
The (galaxy-wide) IMF in giant elliptical galaxies: from top to bottom
... Accepted 2013 August 1. Received 2013 July 30; in original form 2013 June 12 ...
... Accepted 2013 August 1. Received 2013 July 30; in original form 2013 June 12 ...
The Formation of Primordial Luminous Objects - SLAC
... the first structure which formed in the early Universe were Earth-mass dark-matter haloes (but see also Zhao et al. 2005 for criticism about this result); (ii) Growth rate changes: in general, perturbations grow because of gravity; however, the details of the process change with time, leaving an imp ...
... the first structure which formed in the early Universe were Earth-mass dark-matter haloes (but see also Zhao et al. 2005 for criticism about this result); (ii) Growth rate changes: in general, perturbations grow because of gravity; however, the details of the process change with time, leaving an imp ...
Online_Review
... An asteroid is an irregularly shaped celestial object made up of rock or metal. They are smaller than planets and have irregular shapes rather than spherical shapes. A comet is a celestial object made up of ice, rock, and dust that has a very long orbit around the sun. As they move closer to the sun ...
... An asteroid is an irregularly shaped celestial object made up of rock or metal. They are smaller than planets and have irregular shapes rather than spherical shapes. A comet is a celestial object made up of ice, rock, and dust that has a very long orbit around the sun. As they move closer to the sun ...
supplemental_material
... Illumination is from the nanostructured b-Si side of the sample. In order to estimate the rear mirror effect, additional measurements were conducted, in which the sample was flipped; such that illumination is from the polished, PtSi coated sample side (Figure 2). These spectra will be denoted with t ...
... Illumination is from the nanostructured b-Si side of the sample. In order to estimate the rear mirror effect, additional measurements were conducted, in which the sample was flipped; such that illumination is from the polished, PtSi coated sample side (Figure 2). These spectra will be denoted with t ...
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.