Constraints on the physical properties and chemical evolution of star
... The emission from interstellar gas heated by young stars in galaxies contains valuable clues about both the nature of these stars and the physical conditions in the interstellar medium. In particular, prominent emission lines produced by H ii regions, diffuse ionized gas and a potential active galac ...
... The emission from interstellar gas heated by young stars in galaxies contains valuable clues about both the nature of these stars and the physical conditions in the interstellar medium. In particular, prominent emission lines produced by H ii regions, diffuse ionized gas and a potential active galac ...
A Collection of Curricula for the STARLAB Polynesian Voyaging
... The kahako, the little dash over a vowel, denotes a stressed vowel sound. The ‘okina (‘), or glottal stop, signals a halting of breath before a vowel. Many centuries ago people looked up at the sky at night and thought that groups of stars formed figures. To these figures they gave names to honor ch ...
... The kahako, the little dash over a vowel, denotes a stressed vowel sound. The ‘okina (‘), or glottal stop, signals a halting of breath before a vowel. Many centuries ago people looked up at the sky at night and thought that groups of stars formed figures. To these figures they gave names to honor ch ...
Sample Final Exam - atmo.arizona.edu
... c. less sunlight is absorbed by the cloud d. more light is scattered by the cloud ____ 14. Red sunsets, blue moons, and milky-white skies are mainly the result of a. refraction. b. dispersion. c. reflection. d. scattering. e. diffraction. ____ 15. Which of the following would be true if the earth di ...
... c. less sunlight is absorbed by the cloud d. more light is scattered by the cloud ____ 14. Red sunsets, blue moons, and milky-white skies are mainly the result of a. refraction. b. dispersion. c. reflection. d. scattering. e. diffraction. ____ 15. Which of the following would be true if the earth di ...
Chapter two_part B
... Intrinsic Absorption: Caused by interaction with one or more of the components of the glass. ...
... Intrinsic Absorption: Caused by interaction with one or more of the components of the glass. ...
Michelson Interferometry and Measurement of the Sodium Doublet Splitting
... the two sets of fringes coincide (bright regions overlapping bright regions), and the total intensity pattern observed is a bulls-eye pattern of moderately high contrast (a “sharpening coincidence”). When the M1 is moved, the two sets of fringes evolve slightly differently, and at some setting will ...
... the two sets of fringes coincide (bright regions overlapping bright regions), and the total intensity pattern observed is a bulls-eye pattern of moderately high contrast (a “sharpening coincidence”). When the M1 is moved, the two sets of fringes evolve slightly differently, and at some setting will ...
High-resolution Measurement of Refractive Index Based on Resonant Tunneling Effect
... The PC ( HL)m provides a photonic band gap (PBG), in which the propagation of electromagnetic (EM) waves or photons is strongly inhibited. Although there are no photon modes in the PBG, the defect modes (sharp peaks) could be induced by breaking its periodicity due to change of the interference beha ...
... The PC ( HL)m provides a photonic band gap (PBG), in which the propagation of electromagnetic (EM) waves or photons is strongly inhibited. Although there are no photon modes in the PBG, the defect modes (sharp peaks) could be induced by breaking its periodicity due to change of the interference beha ...
IASI level 0 and 1 processing algorithms description
... position of some characteristic features in atmospheric spectra and their measured spectral position by the four pixels. Roughly speaking this will place the interferometric axis on circles centred on the pixels centre so the problem is solved in principle (see section on level 1a processing, 3 rd b ...
... position of some characteristic features in atmospheric spectra and their measured spectral position by the four pixels. Roughly speaking this will place the interferometric axis on circles centred on the pixels centre so the problem is solved in principle (see section on level 1a processing, 3 rd b ...
Modelling the Ultra-Faint Dwarf Galaxies and Tidal
... Before(A), while (B) Both models show high velocity dispersion after dissolution [c] C:&no density enhancement, low , C Mean vrad is patchy with gradient (B) vs. constant within object (D) gradient in vrad D ...
... Before(A), while (B) Both models show high velocity dispersion after dissolution [c] C:&no density enhancement, low , C Mean vrad is patchy with gradient (B) vs. constant within object (D) gradient in vrad D ...
X-ray and Gamma-ray Studies of the Millisecond Pulsar and
... accretion- and rotation-powered states of PSR J1824–2452I in the globular cluster M28 (Papitto et al. 2013) strongly supports the claim that redback systems are recently activated radio MSPs, but which may still sporadically revert to an accreting X-ray binary state. At a distance ∼750 pc, based on ...
... accretion- and rotation-powered states of PSR J1824–2452I in the globular cluster M28 (Papitto et al. 2013) strongly supports the claim that redback systems are recently activated radio MSPs, but which may still sporadically revert to an accreting X-ray binary state. At a distance ∼750 pc, based on ...
THE PHOTOSYNTHETIC EFFICIENCY OF PHYCOCYANIN IN
... than the back window of the absorption cell. The distance between active surface and absorption cell window was less than a millimeter. Thus even light which had been scattered through a considerable angle was registered by the photronic cell at nearly its full value. The incident intensity was meas ...
... than the back window of the absorption cell. The distance between active surface and absorption cell window was less than a millimeter. Thus even light which had been scattered through a considerable angle was registered by the photronic cell at nearly its full value. The incident intensity was meas ...
Pulsar scintillations from corrugated reconnection sheets in the ISM
... the ambient warm ISM (REFERENCE?); no conventional physical mechanism has been proposed for how such regions may be formed. Radio-wave scattering by non-turbulent large-scale refractive structures has been previously considered by Ro- ...
... the ambient warm ISM (REFERENCE?); no conventional physical mechanism has been proposed for how such regions may be formed. Radio-wave scattering by non-turbulent large-scale refractive structures has been previously considered by Ro- ...
Ultrahigh-resolution full-field optical coherence microscopy using
... ranges, we built another FFOCM system with a silicon CCD camera (DS-12-16K5H, 128 × 128 pixels, 12 bits, 490 Hz, Dalsa) using the same objective lenses (OFR-LMO 20x). The shorter-wavelength, Si FFOCM system operated in the 0.65 - 0.95 µm wavelength range. A tungsten-halogen lamp (Oriel 6333) was use ...
... ranges, we built another FFOCM system with a silicon CCD camera (DS-12-16K5H, 128 × 128 pixels, 12 bits, 490 Hz, Dalsa) using the same objective lenses (OFR-LMO 20x). The shorter-wavelength, Si FFOCM system operated in the 0.65 - 0.95 µm wavelength range. A tungsten-halogen lamp (Oriel 6333) was use ...
EQUATION OF STATE AND OPACITIES FOR HYDROGEN
... According to these studies, an atom moving across the strong magnetic field acquires a constant dipole moment parallel to rc . Those radiative transitions, which were dipole forbidden for an atom at rest because of conservation of the z-projection of the angular momentum, become allowed and should b ...
... According to these studies, an atom moving across the strong magnetic field acquires a constant dipole moment parallel to rc . Those radiative transitions, which were dipole forbidden for an atom at rest because of conservation of the z-projection of the angular momentum, become allowed and should b ...
Gaia - STScI
... Huge impact on most other astronomical disciplines. But – Game Over! when Gaia publishes Intermediate catalog. • Anticipate mas astrometry, mmag photometry over all sky. • Guess: Release is politically and scientifically important. • Guess: As early as is reasonable – 2015 or 2016. ...
... Huge impact on most other astronomical disciplines. But – Game Over! when Gaia publishes Intermediate catalog. • Anticipate mas astrometry, mmag photometry over all sky. • Guess: Release is politically and scientifically important. • Guess: As early as is reasonable – 2015 or 2016. ...
KIC 8462852 Faded Throughout the Kepler Mission
... of 1.5 pixels in diameter. However, due to the location of KIC 8462852 in the corner of the Kepler field, the Schmidt optics of the telescope produce a non-Gaussian and asymmetric PSF for each star (Bryson et al. 2010). As can be seen in Figure 2, these PSFs are several pixels in size and extend wel ...
... of 1.5 pixels in diameter. However, due to the location of KIC 8462852 in the corner of the Kepler field, the Schmidt optics of the telescope produce a non-Gaussian and asymmetric PSF for each star (Bryson et al. 2010). As can be seen in Figure 2, these PSFs are several pixels in size and extend wel ...
Excess Optical Enhancement Observed with ARCONS for Early
... MKIDs do not suffer from read noise or dark current. This instrument provides vast improvements over traditional CCD detectors when observing transient events, such as giant pulses. The MKID array used for these observations consisted of 2024 (46x44) pixels. The instrument’s plate scale is 0.45”/pixe ...
... MKIDs do not suffer from read noise or dark current. This instrument provides vast improvements over traditional CCD detectors when observing transient events, such as giant pulses. The MKID array used for these observations consisted of 2024 (46x44) pixels. The instrument’s plate scale is 0.45”/pixe ...
Galactic sources science with AGILE The case of the Carina Region
... nebular structures. An extremely peculiar system in the region and one of the most interesting objects of our Galaxy is the Z Carinae binary [5,6], where the primary star is a massive ( 100 solar masses) luminous blue variable (LBV) star orbiting in a very eccentric binary ðe 0:9Þ with a compani ...
... nebular structures. An extremely peculiar system in the region and one of the most interesting objects of our Galaxy is the Z Carinae binary [5,6], where the primary star is a massive ( 100 solar masses) luminous blue variable (LBV) star orbiting in a very eccentric binary ðe 0:9Þ with a compani ...
Unit 2―The Stars and Their Diurnal Motion
... also known as Alpha Ursa Minoris to indicate it is the brightest star in the constellation of Ursa Minor. Stars as “Friends:” Sometimes learning the most trivial thing about a star can seem to make you “identify” with that star as very few other people know that fact. Turn a small telescope or binoc ...
... also known as Alpha Ursa Minoris to indicate it is the brightest star in the constellation of Ursa Minor. Stars as “Friends:” Sometimes learning the most trivial thing about a star can seem to make you “identify” with that star as very few other people know that fact. Turn a small telescope or binoc ...
Template for Electronic Submission to ACS Journals
... passive optical devices.1 Such structures, also known as distributed Bragg reflectors, acquire their optical properties through the periodic modulation of the refractive index, so they are also classified as one-dimensional photonic crystals (1DPC). Many applications of these materials can be found ...
... passive optical devices.1 Such structures, also known as distributed Bragg reflectors, acquire their optical properties through the periodic modulation of the refractive index, so they are also classified as one-dimensional photonic crystals (1DPC). Many applications of these materials can be found ...
thick disk - asteroSTEP
... Look at the HR1614 group (age ~ 2 Gyr, [Fe/H] = +0.2) which appears to be a relic of a dispersed star forming event. Its stars are scattered all around us. This group has not lost its dynamical identity despite its age. De Silva et al (2007) measured accurate differential abundances for many elemen ...
... Look at the HR1614 group (age ~ 2 Gyr, [Fe/H] = +0.2) which appears to be a relic of a dispersed star forming event. Its stars are scattered all around us. This group has not lost its dynamical identity despite its age. De Silva et al (2007) measured accurate differential abundances for many elemen ...
Dark matter, neutron stars and strange quark matter
... to emphasize that so far the lack of knowledge of DM properties prevents us from making any definite statement on the WIMP mass other than excluded regions, but this work presents a scenario compatible with current experimental direct and indirect searches. Two important pieces of observational inf ...
... to emphasize that so far the lack of knowledge of DM properties prevents us from making any definite statement on the WIMP mass other than excluded regions, but this work presents a scenario compatible with current experimental direct and indirect searches. Two important pieces of observational inf ...
Paper
... With the realization of coherent, laserlike atoms in the form of Bose-Einstein condensates it has become possible to explore matter-wave amplification, a process in which the number of atoms in a quantum state is amplified due to bosonic stimulation. Stimulation has been observed in the formation of ...
... With the realization of coherent, laserlike atoms in the form of Bose-Einstein condensates it has become possible to explore matter-wave amplification, a process in which the number of atoms in a quantum state is amplified due to bosonic stimulation. Stimulation has been observed in the formation of ...
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.