Results 1 to 10 of about 497,177 (252)

Charge identification for spectral lines in nitrogen [PDF]

Journal of Physics B: Atomic and Molecular Physics, 1971
Spectral line emission from nitrogen ions, identifying charge by Doppler shift technique application to beam foil light ...
C Bashkin, G W Carriveau, H J Hay
openaire   +1 more source

Spectral Line Identification in Photoionized Silicon Plasma Emission.

Proposed for presentation at the APS DPP 2020 held November 9-13, 2020 in Albuquerque, NM., 2020
Photoionized silicon plasma experiments were performed using the Z machine at Sandia National Laboratories. A spectrometer with high spectral resolution (λ/δλ~9200) was conceived to record emission from the expanding plasma. The data resolution is unprecedented for plasma emission and include detections of many previously unobserved spectral lines. The
Patricia B. Cho, Guillaume P. Loisel
openaire   +3 more sources

New spectral line identifications in high-temperature flares [PDF]

Monthly Notices of the Royal Astronomical Society, 1987
Spectres d'une eruption solaire entre 7,8 et 10,0 A enregistres par le satellite SMM le 2 juillet ...
Fawcett, B, Jordan, C, Lemen, J, Phillips, K   +3 more
openaire   +2 more sources

New identifications of Fe XVII spectral lines in solar flares [PDF]

Monthly Notices of the Royal Astronomical Society, 1985
The identifications of Fe XVII transitions between the 2s(2)2p(5)3s, 3p, and 3d configurations published by Jupen (1984) are reviewed. The review is based on examining spectroheliograms of solar flares obtained by a Naval Research Laboratory instrument on Skylab (S082-A).
U. Feldman, G. A. Doschek, J. F. Seely
openaire   +1 more source

Line-of-sight geometrical and instrumental resolution effects on intensity perturbations by sausage modes [PDF]

, 2013
Diagnostics of MHD waves in the solar atmosphere is a topic which often encounters problems of interpretation, due partly to the high complexity of the solar atmospheric medium.
Antolin, Patrick, Van Doorsselaere, Tom
core   +2 more sources

Ultraviolet Line Identifications and Spectral Formation Near Max Light in Type Ia Supernova 2011fe [PDF]

The Astrophysical Journal, 2020
Abstract We present ultraviolet line identifications of near maximum-light Hubble Space Telescope observations of SN 2011fe using synthetic spectra generated from both SYNOW and PHOENIX. We find the spectrum to be dominated by blends of iron group elements Fe, Co, and Ni (as expected due to heavy line blanketing by these elements in the ...
James M. DerKacy, E. Baron, David Branch, Peter Hoeflich, Peter Hauschildt, Peter J. Brown, Lifan Wang   +6 more
openaire   +2 more sources

New H2 collision-induced absorption and NH3 opacity and the spectra of the coolest brown dwarfs [PDF]

, 2012
We present new cloudy and cloudless model atmospheres for brown dwarfs using recent ab initio calculations of the line list of ammonia (NH3) and of the collision-induced absorption of molecular hydrogen (H2).
Ackerman, Allard, Allard, Allende Prieto, Bochanski, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burrows, Burrows, Burrows, Cushing, Cushing, Cushing, Cushing, Dahn, Didier Saumon, Dulick, Fegley, Freedman, Frommhold, Geballe, Geballe, Grevesse, Hargreaves, Hubeny, Jorgensen, Kirkpatrick, Kirkpatrick, Kirkpatrick, Knapp, Leggett, Leggett, Leggett, Leggett, Leggett, Leggett, Liu, Liu, Lodders, Lodders, Lodders, Lothar Frommhold, Luhman, Mainzer, Mark S. Marley, Marley, Marley, Martin Abel, Noll, Partridge, Perryman, Plez, Richard, Richard S. Freedman, Roellig, Saumon, Saumon, Saumon, Saumon, Sharp, Stephens, Tinney, Vrba   +69 more
core   +2 more sources

The Herschel SPIRE Fourier Transform Spectrometer Spectral Feature Finder II. Estimating Radial Velocity of SPIRE Spectral Observation Sources

, 2020
The Herschel SPIRE FTS Spectral Feature Finder (FF) detects significant spectral features within SPIRE spectra and employs two routines, and external references, to estimate source radial velocity.
Benson, Chris S., Hladczuk, Natalia, Hopwood, Rosalind, Scott, Jeremy P., Spencer, Locke D., Valtchanov, Ivan   +5 more
core   +1 more source

Line identification in the Ca II K spectral region of sharp-lined B-type stars [PDF]

Astronomy & Astrophysics, 2001
Previous Ca ii K observations of the B-type star HD 83206 have revealed putative high-velocity interstellar clouds (HVCs) at Local Standard of Rest (LSR) velocities of −80 and −110 km s−1. Similar results were also found for the sightline towards HD 135485.
N. Lehner, C. Trundle, F. P. Keenan, K. R. Sembach, D. L. Lambert   +4 more
openaire   +1 more source

The Fourth Positive System of Carbon Monoxide in the Hubble Space Telescope Spectra of Comets [PDF]

, 2007
The rich structure of the Fourth Positive System (A-X) of carbon monoxide accounts for many of the spectral features seen in long slit HST-STIS observations of comets 153P/Ikeya-Zhang, C/2001 Q4 (NEAT), and C/2000 WM1 (LINEAR), as well as in the HST-GHRS
Beegle L. W., Durrance S. T., Eidelsberg M., Feldman P. D., Feldman P. D., Gian‐Paolo Tozzi, Harold A. Weaver, Haser L., Kassal T. T., Le Floch A., Paul D. Feldman, Roxana E. Lupu, Tozzi G. P., Woods T. N.   +13 more
core   +1 more source