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line profiles

Asymmetric Line Profiles in Dense Molecular Clumps Observed in MALT90: Evidence for Global Collapse

Asymmetric Line Profiles in Dense Molecular Clumps Observed in MALT90: Evidence for Global Collapse

... At the time of data collection, the Mopra radio telescope used for the MALT90 survey was operated by the Australia Telescope National Facility which is funded by the Australian Government for operation as a National ...

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Investigating the origin of the spectral line profiles of the Hot Wolf-Rayet Star WR 2

Investigating the origin of the spectral line profiles of the Hot Wolf-Rayet Star WR 2

... significant line dilution from a companion (Crowther ...its line profiles, unless it was folded with a rotation profile near break-up velocity, with an equatorial rotation speed of 1900 km s −1 ...

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Non LTE modelling of prominence fine structures using hydrogen Lyman line profiles

Non LTE modelling of prominence fine structures using hydrogen Lyman line profiles

... thread can be seen. In contrast, the optical thickness in peaks is much lower and thus also the radiation from the threads farther away from the observer contributes to the measured intensities. This effect is more ...

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Theoretical Model of Diffraction Line Profiles as Combinations of Gaussian and Cauchy Distributions

Theoretical Model of Diffraction Line Profiles as Combinations of Gaussian and Cauchy Distributions

... Diffraction line profiles due to polycrystalline materials have long been recognized to be caused by physical pa- rameters like sizes of and defects in constituent powder ...of line profile, Fourier ...

12

The W Ursae Majoris systems : interpretation of light curves and line profiles

The W Ursae Majoris systems : interpretation of light curves and line profiles

... li'or cal;rulating light curves and line profiles, the surface is broken up into one to four thousand elements of area, the nU1J1ber depending on the accuracy desired... elements of area[r] ...

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CO Spectral Line Formation in the Sun: Convective Simulation, Line Profiles and Isotopic Abundance Measures

CO Spectral Line Formation in the Sun: Convective Simulation, Line Profiles and Isotopic Abundance Measures

... The solar UV flux has always been lower than that predicted by various atmospheric mod- els (e.g. Vernazza et al. 1976). As yet unquantified metal absorption lines were in the past typically invoked as explanation of ...

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Herschel-HIFI observations of high-J CO and isotopologues in star-forming regions: from low to high mass

Herschel-HIFI observations of high-J CO and isotopologues in star-forming regions: from low to high mass

... served with the James Clerk Maxwell Telescope (JCMT) are in- cluded in the analysis in order to use CO to its full diagnostic potential and extend the analysis to di ff erent regions of the proto- stellar environment with ...

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Additional ultra high resolution observations of Ca+ ions in the local interstellar medium

Additional ultra high resolution observations of Ca+ ions in the local interstellar medium

... K line towards seven nearby ...the line profiles fully, thereby enabling us to detect hitherto unresolved velocity components, and to obtain accurate measurements of the velocity dispersions (b ...

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The KMOS AGN Survey at High redshift (KASHz): the prevalence and drivers of ionized outflows in the host galaxies of X-ray AGN

The KMOS AGN Survey at High redshift (KASHz): the prevalence and drivers of ionized outflows in the host galaxies of X-ray AGN

... emission-line profiles which are dominated by these extreme gas kinematics and lower level outflows or highly turbu- lent material could be even more ...

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Imaging chemical differentiation around the low-mass protostar L483-mm

Imaging chemical differentiation around the low-mass protostar L483-mm

... the line wings is indeed least subject to resolving out compared to the emission close to the systemic velocity, but in general the observed line profiles appear similar from both single-dish and ...

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THE CHROMOSPHERIC MAGNETIC FIELD IN ACTIVE REGIONS DERIVED FROM SPECTROPOLARIMETRY OF CA II 8542

THE CHROMOSPHERIC MAGNETIC FIELD IN ACTIVE REGIONS DERIVED FROM SPECTROPOLARIMETRY OF CA II 8542

... IQUV profiles using for measurements of the magnetic field on the ...spectral line profiles of full Stokes taken by Spectro-polarimeter and Stokes I and V images obtained by the Narrowband Filter ...

5

521dba3fe1c07fc9b1e517022816d41fdb5a5672.pdf

521dba3fe1c07fc9b1e517022816d41fdb5a5672.pdf

... Hα line). Another feature of the Balmer line profiles is a blue-shifted ab- sorption component which also varies in shape and posi- ...complicated profiles, such as a central peak in the Hα ...

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Alma Imaging of Hcn, Cs, and Dust in Arp 220 and Ngc 6240

Alma Imaging of Hcn, Cs, and Dust in Arp 220 and Ngc 6240

... HCN line profiles mapped over the area of the ...observed line profiles seen in HCN (4–3) across Arp 220 east and west and NGC ...observed line profiles, and to see if this ...

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Variability in the CO ro vibrational lines from HD163296

Variability in the CO ro vibrational lines from HD163296

... For comparison we use high-resolution spectra (R ∼ 25 000) of HD 163296 collected with NIRSPEC (McLean et al. 1998) on the Keck II telescope. These observations are collected during the period 2001–2002. The spectra from ...

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Tissue specific signatures in tick cell line MS profiles

Tissue specific signatures in tick cell line MS profiles

... MS profiles was highly improved after introduction of FA/SA mixtures, allowing recognition of three distinct clusters by ...Cell line IRE/CTVM19 was clustered separately from the other IRE cells, and the ...

12

Molecular Line Emission Towards High-Mass Clumps: The MALT90 Catalogue

Molecular Line Emission Towards High-Mass Clumps: The MALT90 Catalogue

... the profiles are clearly non-Gaussian, so while a single com- ponent was found to be the ‘best fit’ to these profiles, there are clearly significant residuals remaining in the spectrum: in these cases, the ...

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Warping, dust settling and dynamics of protoplanetary disks

Warping, dust settling and dynamics of protoplanetary disks

... molecular line transition code has been applied to predict CO line profiles in the complex 3D density and velocity structure of a self gravitating, massive circumstellar ...molecular line ...

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A spectroscopic investigation of the hydro deficient binary Upsilon Sgr, and related objects

A spectroscopic investigation of the hydro deficient binary Upsilon Sgr, and related objects

... Gravity is determined by looking at many line profiles and their theoretical equivalents to determine a gravity for a given model temperature c.. Finally the temperature and.[r] ...

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Characterization of Active R2 Retrotransposition in the rDNA Locus of Drosophila simulans

Characterization of Active R2 Retrotransposition in the rDNA Locus of Drosophila simulans

... The rRNA gene (rDNA) loci of all arthropod lineages contain non-LTR retrotransposable elements that have evolved to specifically insert into the 28S rRNA genes. Extensive in vitro experiments have been conducted to ...

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Photospheric parameters of early type stars

Photospheric parameters of early type stars

... No calculations are avmlable as yet which remove both these approxim ations sim ul­ taneously. In this study the predictions o f models which remove one or other o f the two approxim ations are c ritic a lly compared w ...

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