Results 111 to 120 of about 1,003,872 (220)
, 1975 $^{1}$ J. A. Duardo, Interstellar $H_{2}$ Narrow and Diffuse Line Absorption"", Twenty-Ninth Symposium on Molecular Structure and Spectroscopy, The Ohio State University, June, 1974.""""Author Institution: Xerox Electro-Optical SystemsA total of fourteen
Duardo, J. A.
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Analysis of the 3.2–3.3 μm Interstellar Absorption Feature on Three Milky Way Sightlines
The Astrophysical JournalWe report new analyses of spectra of the 3.2–3.3 μ m absorption feature observed in the diffuse interstellar medium toward three Milky Way sources: 2MASS J 17470898 − 2829561 (2M1747) and the Quintuplet Cluster, both located in the Galactic center, and ...
L. S. Bernstein, T. R. Geballe
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The Astrophysical JournalNewly computed collisional rate coefficients for the excitation of C _2 in collisions with H _2 , presented recently by Najar & Kalugina, are significantly larger than the values adopted previously in models for the excitation of the C _2 molecule, a ...
David A. Neufeld +9 more
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Carbon onions: Carriers of the 217.5 nm interstellar absorption feature
, 2003 The UV-VIS characteristics of carbon ions fabricated by an arch discharge in water or liquid nitrogen show characteristics that are similar to the interstellar absorption feature.
Wang, H +6 more
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Investigation of diffuse interstellar bands of organic molecules in the spectra of cepheid stars
, 2015 We describe an effective method of investigation of the Diffuse Interstellar Bands (DIBs) in the spectra of Cepheid stars. DIBs are believed to originate from the absorption of such carriers as polycyclic aromatic hydrocarbons in the interstellar ...
Andrievsky, Serhii M. +7 more
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Revisiting the Ultraviolet Spectroscopy of the η Tel Edge-on Debris Disk
The Astronomical JournalWe revisit the ultraviolet absorption spectroscopy of the edge-on debris disk surrounding the A0V star η Telescopii. Previous work found absorption components at four velocities (∼−23, −18, −10, −1 km s ^−1 ), with the most blueshifted component (−23 km
Allison Youngblood +6 more
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, 2014 Dust in the interstellar medium is important to astronomers because it absorbs light from more distant objects and because it provides the raw material from which planets form. One of the main components of interstellar dust is silicates.
Megan M. Bagley (10081498)
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Equivalent Width of the Interstellar Na i D1 and D2 Absorption Lines for Stars with E(B−V) < 0.15
New measurements of the equivalent width of the interstellar Na i D1 and D2 absorption lines for 62 bright B-type stars with E(B − V) < 0.15 are used to recalibrate the relation between these quantities in this low-reddening regime, and to quantify the ...
Maxted, Pierre F. L.
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A survey of local interstellar hydrogen from OAO-2 observations of Lyman alpha absorption [PDF]
, 1972 The Wisconsin far ultraviolet spectrometer aboard OAO-2 observed the wavelength region near 1216 A for 69 stars of spectral type B2 or earlier. From the strength of the observed interstellar L sub alpha absorption, atomic hydrogen column densities were ...
Savage, B. D., Jenkins, E. B.
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The interstellar absorption in selected area 47.
The Astronomical Journal, 1970 Abstract : A study of the obscuration in the direction of Selected Area 47 (1(II) = 159 degrees, b(II) = -21 degrees) has been made. An absorbing cloud was found at a distance of 300 pc with a total visual absorption of 2.0 magnitudes. (Author)
openaire +1 more source