15
15
Dec 25, 2020
12/20
by
Center for Accessible Technology in Sign
movies
eye 15
favorite 0
comment 0
ASL vocabulary
Topic: luminosity
11
11
Sep 8, 2020
09/20
by
Center for Accessible Technology in Sign
movies
eye 11
favorite 0
comment 0
ASL vocabulary
Topic: luminous,luminosity
205
205
Jun 18, 2010
06/10
by
Antonov-Romanovskiy, V. V.; Epshteyn, M. I
texts
eye 205
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comment 0
Absolute luminosity yield measurements of powdered phosphors
Topics: ELECTROMAGNETIC ABSORPTION, LUMINOSITY, PHOSPHORS, LIGHT ABSORPTION, LUMINOSITY, PHOSPHOR
206
206
May 30, 2010
05/10
by
Pskovskiy, Yu. P
texts
eye 206
favorite 0
comment 0
Luminosity functions of normal galaxies in photoranges and radiobands
Topics: COMPUTATION, GALAXIES, LUMINOSITY, RADIO FREQUENCIES, GALAXY, LUMINOSITY, RADIO FREQUENCY
309
309
Jul 6, 2010
07/10
by
KUBOTA, H
texts
eye 309
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comment 0
A DIRECT AND RAPID METHOD OF CALCULATING SUBLIMATION ABLATION FOR A HYPERSONIC HEAT-SHIELDING DEVICE IS PRESENTED. THIS IS BASED ON A NUMERICAL ANALYSIS OF THE HARTREE-WOMERSLEY METHOD WHICH REDUCES A PARABOLIC PARTIAL DIFFERENTIAL EQUATION TO A CORRESPONDING ORDINARY ONE BY MEANS OF A KIND OF IMPLICIT SCHEME.
Topics: COMETS, STELLAR LUMINOSITY, BRIGHTNESS
6
6.0
texts
eye 6
favorite 0
comment 0
Topics: manuallib, manuals, HIGH-LUMINOSITY
222
222
Jun 18, 2010
06/10
by
Stothers, R
texts
eye 222
favorite 0
comment 0
Theory of evolution of completely mixed stars with mass loss - prediction of luminosity function
Topics: LOSSES, LUMINOSITY, STAR CLUSTERS, STELLAR EVOLUTION, LUMINOSITY, STAR CLUSTER, STELLAR EVOLUTION
1
1.0
web
eye 1
favorite 0
comment 0
Luminosity Text Based Survivor Wiki dumped with WikiTeam tools.
Topics: wiki, wikiteam, MediaWiki, Luminosity Text Based Survivor Wiki,...
Dumonde @ Luminosity Beach Festival 18 08 2013
Topic: Dumonde @ Luminosity Beach Festival 18 08 2013
The reported research elaborates illumination schemes employed in the domestic applications. A unit of energy saved is equivalent to three units of generation, hence it is also important to optimally utilize the available power rather than increasing the generation capabilities. Illumination is of prime importance during off sunshine hours in industrial as well as domestic applications; hence the need for energy efficient illumination systems has been exponentially increasing with demand. Since...
Topics: LED, CFL, Incandescent, Luminosity, Illumination & Efficient Illumination
Flutlicht @ Luminosity 2013 Pre Recorded Studio DJ Mix
Topic: Flutlicht @ Luminosity 2013 Pre Recorded Studio DJ Mix
134
134
Jul 21, 2010
07/10
by
Bregman, J.; Witteborn, F. C.; Tielens, Alexander G. G. M.; Allamandola, Louis J
texts
eye 134
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Interstellar molecular grain mantles are an important component of the interstellar dust inside dense molecular clouds as evidenced by the detection of absorption bands at 2.97, 3.08, 4.61, 6.0 and 6.8 microns. Mantles may also be the precursors of more complex grain mantles in the diffuse interstellar medium. The molecular composition of these icy grain mantles were calculated employing gas phase as well as grain surface reactions. The calculated mixtures consist mainly of the molecules H2O,...
Topics: EMISSION SPECTRA, GRAPHITE, NEBULAE, PHOSPHORESCENCE, ABUNDANCE, LIGHT SCATTERING, LUMINOSITY
494
494
Jun 21, 2010
06/10
by
Petit, P. H
texts
eye 494
favorite 0
comment 0
Applications of advanced composite materials to C-130 center wing box
Topics: CATALOGS (PUBLICATIONS), INTERSTELLAR MATTER, NEBULAE, STAR DISTRIBUTION, STELLAR LUMINOSITY
214
214
Jul 6, 2010
07/10
by
ISTVAN, M. S
texts
eye 214
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comment 0
THE SUBTERRANEAN EXPLOSION IS DISCUSSED OF PETROLEUM OR NATURAL GAS PROVOKED BY A SPARK WHICH MAY CAUSE EARTHQUAKES, LANDSLIPS, AND WHERE THE TECTONIC STRUCTURE OF THE EARTH'S CRUST MAKES IT POSSIBLE, VOLCANIC ACTIVITY. THE FREE MOLECULES OF OXYGEN AND PEROXIDE ARE OF GREAT IMPORTANCE IN THE CASE WHEN A QUALITATIVE AND QUANTITATIVE DISCREPANCY IN THE ELECTRIC CHARGE OF THE WALLS OF THE CAVES FILLED WITH PETROLEUM OR GAS ALLOWS THE GENERATION OF AN ELECTRIC SPARK. IN SUBTERRANEAN CAVES...
Topics: COLOR VISION, IMAGE CONTRAST, LUMINOSITY, CHARACTER RECOGNITION, TRANSPARENCE, VISION
304
304
May 30, 2011
05/11
by
Mineck, R. E
texts
eye 304
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comment 0
The influence of Reynolds number on the performance of outboard spoilers and ailerons was investigated on a generic subsonic transport configuration in the National Transonic Facility over a chord Reynolds number range from 3 to 30 million and a Mach number range from 0.70 to 0.94. Spoiler deflection angles of 0, 10, and 20 degrees and aileron deflection angles of -10, 0, and 10 degrees were tested. Aeroelastic effects were minimized by testing at constant normalized dynamic pressure conditions...
Topics: AURORAS, ELECTRON PRECIPITATION, ION EMISSION, HEAVY IONS, LUMINOSITY, POLAR REGIONS
85
85
texts
eye 85
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A new cosmological model is considered which doesn’t require dark energy. The expansion of the universe is reinterpreted as a ‘rescaling’ whereby the whole universe can change scale, yet appear static. Rescaling is a symmetry whereby there is a simultaneous change of every length in the universe and all physical constants which contain length dimensions. It is shown that this interpretation of expansion of the universe, can lead to a Hubble law, due to changing of Hubble constant with...
Topics: Cosmology, Hubble Law, Red-Shift, Distance Scale, Luminosity Distance, Dark Energy
9
9.0
Dec 7, 2021
12/21
by
Schaaf, Fred
texts
eye 9
favorite 2
comment 0
v, 281 p. : 24 cm
Topics: Stars -- Luminosity function -- Amateurs' manuals, Stars -- Amateurs' manuals, Astronomy --...
The lowest luminosity stars and brown dwarfs are among the most useful probes of planetary, stellar, and Galactic processes. With hydrogen-burning lifetimes far in excess of a Hubble time and space densities that exceed those of hotter stars, low-mass dwarfs are ubiquitous in the disk, thick-disk, and halo populations and may host the bulk of terrestrial planets in the Galaxy. The steady cooling of brown dwarfs over time makes them useful chronometers for coeval clusters. Observations of cool...
Topics: DTIC Archive, NAVAL OBSERVATORY FLAGSTAFF AZ, *DWARF STARS, *LUMINOSITY, J BAND, PHOTOMETRY
207
207
May 29, 2011
05/11
by
Maestrello, Luci
texts
eye 207
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Three unrelated experiments are discussed; each was extremely sensitive to initial conditions. The initial conditions are the beginnings of the origins of the information that nonlinearity displays. Initial conditions make the phenomenon unstable and unpredictable. With the knowledge of the initial conditions, active control requires far less power than that present in the system response. The first experiment is on the control of shocks from an axisymmetric supersonic jet; the second, control...
Topics: X RAYS, EMISSION, IONIZATION, ACTIVE GALACTIC NUCLEI, SEYFERT GALAXIES, LUMINOSITY, NUCLEAR...
Determining the distance to the open cluster M29 (NGC 6913) has proven difficult, with distances determined by various authors differing by a factor of two or more. To solve this problem, we have initiated a new photometric investigation of the cluster in the Vilnius seven-color photometric system, supplementing it with available data in the BV and JHKs photometric systems and spectra of the nine brightest stars of spectral classes O and B. Photometric spectral classes and luminosities of 260...
Topics: DTIC Archive, NAVAL OBSERVATORY FLAGSTAFF AZ, *STARS, LUMINOSITY, PHOTOMETRY, RANGE(DISTANCE),...
293
293
Jun 13, 2011
06/11
by
Gupta, Pramod; Guenther, Kurt; Hodgkinson, John; Jacklin, Stephen; Richard, Michael; Schumann, Johann; Soares, Fol
texts
eye 293
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Modern exploration missions require modern control systems-control systems that can handle catastrophic changes in the system's behavior, compensate for slow deterioration in sustained operations, and support fast system ID. Adaptive controllers, based upon Neural Networks have these capabilities, but they can only be used safely if proper verification & validation (V&V) can be done. In this paper we present our V & V approach and simulation result within NASA's Intelligent Flight...
Topics: TAURID METEOROIDS, LUNAR SURFACE, PHOTOMETRY, LUMINOSITY, COSMIC RAYS, CHARGE COUPLED DEVICES, MOON
485
485
May 23, 2011
05/11
by
Kreider, Kevin L.; Baumeister, Kenneth J
texts
eye 485
favorite 0
comment 0
An explicit finite difference real time iteration scheme is developed to study harmonic sound propagation in aircraft engine nacelles. To reduce storage requirements for future large 3D problems, the time dependent potential form of the acoustic wave equation is used. To insure that the finite difference scheme is both explicit and stable for a harmonic monochromatic sound field, a parabolic (in time) approximation is introduced to reduce the order of the governing equation. The analysis begins...
Topics: QUASARS, HUBBLE SPACE TELESCOPE, SPACEBORNE ASTRONOMY, GALAXIES, SENSITIVITY, LUMINOSITY,...
231
231
Jul 11, 2010
07/10
by
NON
texts
eye 231
favorite 0
comment 0
Two models of cost benefit analysis are illustrated and the application of these models to assessing the economic scope of space applications programs was discussed. Four major areas cited as improvable through space derived information - food supply and distribution, energy sources, mineral reserves, and communication and navigation were - discussed. Specific illustrations are given for agriculture and maritime traffic.
Topics: COMETS, SOLAR SYSTEM, ASTRONOMY, COMET TAILS, LUMINOSITY, OSCILLATIONS, PARTICLES, SOLAR ORBITS, SUN
We present photometric and spectroscopic observations of a luminous Type IIP Supernova (SN) 2009kf discovered by the Pan-STARRS 1 (PS1) survey and also detected by the Galaxy Evolution Explorer. The SN shows a plateau in its optical and bolometric light curves, lasting approximately 70 days in the rest frame, with an absolute magnitude of Mv = -18.4 mag. The P-Cygni profiles of hydrogen indicate expansion velocities of 9000 km/s at 61 days after discovery which is extremely high for a Type IIP...
Topics: DTIC Archive, NAVAL OBSERVATORY FLAGSTAFF AZ, *SUPERNOVAE, LUMINOSITY, PHOTOMETRY, REPRINTS,...
A large sample of cool white dwarfs from the Sloan Digital Sky Survey has been used to construct a luminosity function (LF), with the selection based on the method of reduced proper motion. While the sample is 60 times larger than that from our Luyten Half Second proper motion survey, its sensitivity to the region past the peak of the LF is severely limited by the necessity to match positions with detections from Palomar plates. A new survey to realize the full limiting magnitudes of the SDSS...
Topics: DTIC Archive, Liebert, James, STEWARD OBSERVATORY TUCSON AZ, *DWARF STARS, LUMINOSITY, WORKSHOPS
Recent searches by unbiased, wide-field surveys have uncovered a group of extremely luminous optical transients. The initial discoveries of SN 2005ap by the Texas Supernova Search and SCP-06F6 in a deep Hubble pencil beam survey were followed by the Palomar Transient Factory confirmation of host redshifts for other similar transients. The transients share the common properties of high optical luminosities (peak magnitudes -21 to -23), blue colors, and a lack of H or He spectral features. The...
Topics: DTIC Archive, NAVAL OBSERVATORY FLAGSTAFF AZ, *SUPERNOVAE, LUMINOSITY, PHOTOMETRY, REPRINTS,...
204
204
Jun 1, 2010
06/10
by
Verniani, F
texts
eye 204
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Computation of ratio of photographic luminous efficiency to square of density for 400 Super-Schmidt meteors from observational data
Topics: DENSITY MEASUREMENT, FRAGMENTATION, LUMINOSITY, LUMINOUS INTENSITY, METEOROIDS, PHOTOGRAPHS,...
361
361
May 24, 2011
05/11
by
Adams, Milton; Kolitz, Stephan; Milner, Joseph; Odoni, Amede
texts
eye 361
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Alternative concepts for modifying the policies and procedures under which the air traffic flow management system operates are described, and an approach to the evaluation of those concepts is discussed. Here, air traffic flow management includes all activities related to the management of the flow of aircraft and related system resources from 'block to block.' The alternative concepts represent stages in the evolution from the current system, in which air traffic management decision making is...
Topics: CHARGE COUPLED DEVICES, ASTRONOMICAL PHOTOMETRY, ERRORS, PRECISION, EXPERIMENTATION, DATA...
386
386
Jul 9, 2010
07/10
by
SVENSSON, H
texts
eye 386
favorite 0
comment 0
THE ERTS-1 EXPERIMENT IS BRIEFLY PRESENTED. BASED ON ERTS IMAGES OF THE SOUTHWESTERN PART OF SWEDEN AND THE ADJACENT COAST AREA OF NORWAY THE DETECTION OF TERMINAL MORAINES FROM THE DEGLACIATION PERIOD OF THE LAST GLACIATION IS DISCUSSED. THE MORAINE LINE OF THE RA-SUBSTAGE (YOUNGER DRYAS) IS ESPECIALLY OBSERVABLE.
Topics: HIGH VOLTAGES, JUNCTION DIODES, SOLAR CELLS, LIGHT TRANSMISSION, LUMINOSITY, PERFORMANCE TESTS,...
201
201
Jun 2, 2011
06/11
by
Decker, William A.; Simmons, Rickey C
texts
eye 201
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Civil tiltrotor transports have the potential to relieve the growing congestion around the Nation's conventional airport runways. Operating as regional transports, civil tiltrotors can operate from airport vertipads, from short, unused runway segments, or directly from urban vertiports located near population and business centers. Safe, all-weather, low-noise terminal-area operations are needed to realize the tiltrotor's potential for improving the capacity of the air transportation system....
Topics: PHOTOSPHERE, STELLAR SPECTRA, ATMOSPHERIC CHEMISTRY, ASTROPHYSICS, INFRARED RADIATION, DIPOLE...
435
435
Jul 12, 2010
07/10
by
Bell, P. R
texts
eye 435
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The detection of the combined presence of the Hale magnetic sunspot cycle (22.28 years) and the lunar nodal tidal cycle (18.61 years) in both the Eastern North American January air temperatures and the Western U.S. High Plains drought series led to an extended analysis of the Drought Area Index time series. This analysis indicated that the mean dominant period of the drought series should be 20.0 to 20.5 years and that the principal period should be resolvable into two components of about 22.28...
Topics: LIMB DARKENING, SOLAR DIAMETER, STELLAR LUMINOSITY, VARIATIONS, CHROMOSPHERE, PHOTOSPHERE, SOLAR...
Galaxy Formation And Evolution
Topics: galaxies, galaxy, redshift, lya, density, universe, luminosity, emission, cosmological, evolution,...
355
355
May 23, 2011
05/11
by
Heidmann, James Davi
texts
eye 355
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comment 0
The effect of upstream blade row wake passing on the showerhead film cooling performance of a downstream turbine blade has been investigated through a combination of experimental and computational studies. The experiments were performed in a steady-flow annular turbine cascade facility equipped with an upstream rotating row of cylindrical rods to produce a periodic wake field similar to that found in an actual turbine. Spanwise, chordwise, and temporal resolution of the blade surface...
Topics: WHITE DWARF STARS, MAGNETIC STARS, X RAY SOURCES, ROSAT MISSION, PHOTOSPHERE, LUMINOSITY,...
559
559
May 29, 2011
05/11
by
NON
texts
eye 559
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comment 0
This report lists reports, articles and other documents recently announced in the NASA STI Database. Several thousand inventions result each year from the aeronautical and space research supported by the National Aeronautics and Space Administration. The inventions having important use in government programs or significant commercial potential are usually patented by NASA. These inventions cover practically all fields of technology and include many that have useful and valuable commercial...
Topics: METEOROIDS, CURVATURE, GLUES, HIGH RESOLUTION, IMPINGEMENT, LUMINOSITY, COLLISIONS, FRAGMENTS,...
172
172
Jul 21, 2010
07/10
by
Anderson, H. R
texts
eye 172
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In January 1984, a proposal was submitted to NASA Headquarters entitled The Shuttle Glow: A Program to Determine the Physics of the Ram induced Phenomena. This proposal included the following elements in a shuttlebased experiment: (1) The use of a special flat generating surface 1 x 3 m on which the glow can be produced and observed. This surface will be maneuvered to vary the orientation of ram flow and of projected component of geomagnetic field. (2) Remotely mounted optical instruments to...
Topics: CHEMILUMINESCENCE, DESORPTION, LUMINOSITY, RECOMBINATION REACTIONS, SPACECRAFT ORBITS, EARTH...
787
787
Jul 25, 2010
07/10
by
NON
texts
eye 787
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This bibliography lists 127 reports, articles and other documents introduced into the NASA Scientific and Technical Information System during August, 1989. Subject coverage includes: aerospace medicine and psychology, life support systems and controlled environments, safety equipment, exobiology and extraterrestrial life, and flight crew behavior and performance.
Topics: GALACTIC HALOS, GALAXIES, HALOS, NEUTRON STARS, STELLAR EVOLUTION, WHITE DWARF STARS, HELIUM,...
A new era in astronomy will begin when the gravitational wave window onto the universe opens in approx. 5 years, as ground-based detectors make the first detections in the high-frequency regime. Since the universe is nearly transparent to gravitational waves, these signals carry direct information about their sources - such as masses, spins, luminosity distances, and orbital parameters - through dense, obscured regions across cosmic time. This talk will explore gravitational waves as cosmic...
Topics: NASA Technical Reports Server (NTRS), GRAVITATIONAL WAVES, TRANSPARENCE, LUMINOSITY, ASTROPHYSICS,...
A new era in time-domain astronomy will begin when the gravitational wave window onto the universe opens in approx. 5 years, as ground-based detectors make the first detections in the high-frequency regime. Since the universe is nearly transparent to gravitational waves, these signals carry direct information about their sources - such as masses, spins, luminosity distances, and orbital parameters through dense, obscured regions across cosmic time. This talk will explore gravitational waves as...
Topics: NASA Technical Reports Server (NTRS), GRAVITATIONAL WAVES, LUMINOSITY, TRANSPARENCE, ASTROPHYSICS,...
278
278
texts
eye 278
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No Abstract Available
Topics: INTERPLANETARY DUST, METEOROID DUST CLOUDS, SPACECRAFT ENVIRONMENTS, STELLAR MASS, SOLAR SYSTEM,...
438
438
Jul 12, 2010
07/10
by
Mitchell, M
texts
eye 438
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Near threshold fatigue crack propagation in pipeline steels in high pressure environments was studied. The objective was to determine the level of threshold stress intensity for fatigue crack growth rate behavior in a high strength low alloy X60 pipeline-type steel. Complete results have been generated for gaseous hydrogen at ambient pressure, laboratory air at ambient pressure and approximately 60% relative humidity as well as vacuum of 0.000067 Pa ( 0.0000005 torr) at R-ratios = K(min)/K(max)...
Topics: LUMINOSITY, THEORETICAL PHYSICS, SEISMOLOGY, SOLAR ATMOSPHERE, SOLAR CONSTANT, VARIATIONS,...
We present a hot white dwarf (WD) luminosity function (LF) using data taken from the Sloan Digital Sky Survey (SDSS) Data Release 4. We present and discuss a combined LF, along with separate DA and non-DA as LFs. We explore the completeness of our LFs and interpret a sudden drop in the non-DA LF near 2 Mbol as a transition of the non-DA WD atmosphere into the DA one during WD evolution. Our LF should now be useful for estimates of recent star formation and for studies of neutrino and other...
Topics: DTIC Archive, NAVAL OBSERVATORY FLAGSTAFF AZ, *LUMINOSITY, *SURVEYS, *DIGITAL SYSTEMS, ATMOSPHERE...
We have a fruitful observing program underway which has significantly increased the number of lunar impacts observed. We have done initial test shots at the Ames Vertical Gun Range obtained preliminary luminous efficiency values. More shots and better diagnostics are needed to determine ejecta properties. We are working to have a more accurate ejecta. environment definition to support lunar lander, habitat, and EVA design. Data also useful for validation of sporadic model at large size range.
Topics: NASA Technical Reports Server (NTRS), LUNAR PROGRAMS, EJECTA, EXTRAVEHICULAR ACTIVITY, HABITATS,...
An in-progress investigation aimed at characterizing the X-ray luminosity of very faint QSOs is described. More than 100 faint, previously uncataloged QSOs which lie in areas imaged in X rays at very high sensitivity were discovered.
Topics: NASA Technical Reports Server (NTRS), HEAO 2, LUMINOSITY, X RAYS, IMAGING TECHNIQUES, QUASARS,...
LibriVox recording of Short Nonfiction Collection, Vol. 072 by Various. Read iby LibriVox Volunteers Twenty short nonfiction works, individually chosen by the readers. "The ground rose and fell in successive furrows, like the ruffled waters of a lake, and I became bewildered in my ideas..." John James Audubon's vivid recollection of the 1812 New Madrid earthquake is one of several Vol. 072 selections with a scientific focus. Others include Luminous Plants; The Sunbeam and the...
Topics: librivox, audiobooks, rome, slavery, murder, Titanic, Fulton, aristotle, earthquake, spectroscope,...
The magnitude brightness variation due to binary star reflection effect is considered, along with tidal distortion effects. The flat region in the Milne-Sen Law is also reviewed, including the nonfit observations. Several studies are included in this binary star program investigation.
Topics: NASA Technical Reports Server (NTRS), REFLECTION, STELLAR LUMINOSITY, BINARY STARS,...
MOCAGH.ORG: Electronic Arts: archon refcard
Topics: key, press, warranty, movement, color, joystick, electronic, luminosity, default, cycle, fire key,...
244
244
Jul 21, 2010
07/10
by
Kofsky, I. L.; Barrett, J. L
texts
eye 244
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Infrared photons from the radiative cascade accompany both the gas phase NO2 continuum chemiluminescence (which originates from its 2B2 and 2B1 states) and the NO beta bands. When these upper electronic states are excited by recombination/desorption at surfaces of low Earth orbiting spacecraft, similar IR emission spectrums will be observed. The principal NO2 features (other than the long wavelength tail of its electronic transitions) are the nu sub 3 fundamental sequence near 6.2 microns and...
Topics: EARTH ORBITS, RADIANCE, SPACECRAFT GLOW, LUMINOSITY, SPACE SHUTTLES, SPACECRAFT ORBITS, AIRGLOW,...
317
317
May 24, 2011
05/11
by
Palosz, W.; George, M. A.; Collins, E. E.; Chen, K.-T.; Zhang, Y.; Burger, A
texts
eye 317
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Crystals of Cd(1-x)Zn(x)Te with x = 0.2 and 40 g in weight were grown on monocrystalline cadmium-zinc telluride seeds by closed-ampoule physical vapor transport with or without excess (Cd Zn) in the vapor phase. Two post-growth cool-down rates were used. The crystals were characterized using low temperature photoluminescence, atomic force microscopy, chemical etching, X-ray diffraction and electrical measurements. No formation of a second, ZnTe-rich phase was observed.
Topics: PROTOSTARS, COLLAPSE, MOLECULAR CLOUDS, FAR INFRARED RADIATION, LINE SPECTRA, STELLAR MASS, STELLAR...
106
106
Jul 21, 2010
07/10
by
Torr, M. R
texts
eye 106
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A possible opportunity for study of surface glow exists during the Environmental Observation Mission (EOM) 1-2 mission scheduled for launch on September 3, 1986. The EOM 1-2 payload includes spectroscopic and photometric instruments which operate in wavelength regions of great interest to the glow assessment activity. However, as in the case of many remote sensing instruments, these are located in the payload bay in such a way as to avoid viewing any shuttle or payload surfaces. If these...
Topics: AEROSPACE ENVIRONMENTS, LUMINOSITY, SPACE PLASMAS, SPACECRAFT ORBITS, EARTH ORBITS, GASES, LOW...
We investigate the low-mass population of the young cluster IC 348 down to the deuterium-burning limit, a fiducial boundary between brown dwarf and planetary mass objects, using a new and innovative method for the spectral classification of late-type objects. Using photometric indices, constructed from HST/NICMOS narrowband imaging, that measure the strength of the 1.9 micron water band, we determine the spectral type and reddening for every M-type star in the field, thereby separating cluster...
Topics: DTIC Archive, Najita, Joan R, NATIONAL OPTICAL ASTRONOMY OBSERVATORIES TUCSON AZ, *DWARF STARS,...
