Small-scale structure in the interstellar medium: time-varying interstellar absorption towards κ Velorum [PDF]
, 2012 Ultra-high spectral resolution observations of time-varying interstellar absorption towards κ Vel are reported, using the Ultra-High Resolution Facility on the Anglo-Australian Telescope.
Keith T. Smith +15 more
semanticscholar +1 more source
INVESTIGATION OF DIFFUSE INTERSTELLAR BANDS OF ORGANIC MOLECULES IN THE SPECTRA OF CEPHEID STARS
Odessa Astronomical Publications, 2016 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 gaseous
S. V. Kashuba +5 more
doaj +1 more source
High‐Pressure Carbonaceous Phases as Minerals
Geophysical Monograph Series, Page 11-23., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Oliver Tschauner
wiley +1 more source
Vacuum-UV spectroscopy of interstellar ice analogs - I. Absorption cross-sections of polar-ice molecules [PDF]
, 2014 Context. The vacuum-UV (VUV) absorption cross sections of most molecular solids present in interstellar ice mantles with the exception of H2O, NH3 ,a nd CO 2 have not been reported yet.
G. Cruz-Diaz +3 more
semanticscholar +1 more source
[C II] absorption and emission in the diffuse interstellar medium across the Galactic plane [PDF]
, 2014 Aims. Ionized carbon is the main gas-phase reservoir of carbon in the neutral diffuse interstellar medium (ISM) and its 158 μm fine structure transition [C ii] is the most important cooling line of the diffuse ISM.
M. Gerin +19 more
semanticscholar +1 more source
New 3D gas density maps of NaI and CaII interstellar absorption within 300 pc [PDF]
, 2009 Aims. We present new high resolution (R > 50 000) absorption measurements of the NaI doublet (5889-5895 A) along 482 nearby sight-lines, in addition to 807 new measurements of the CaII K (3933 A) absorption line.
B. Welsh +3 more
semanticscholar +1 more source
Diffuse Interstellar Bands – The Unidentified Part of the Interstellar Absorption Spectrum [PDF]
Symposium - International Astronomical Union, 1989 The unidentified (since 1921) diffuse interstellar bands (DIBs) are discussed together with their relations to other interstellar absorptions sucn as: continuous extinction, polarization and atomic or molecular absorption lines. It is shown that DIBs do not form the absorption spectrum of one agent, but probably of several (3 or more).
openaire +1 more source
A Reexamination of Phosphorus and Chlorine Depletions in the Diffuse Interstellar Medium
The Astrophysical Journal, 2023 We present a comprehensive examination of interstellar P and Cl abundances based on an analysis of archival spectra acquired with the Space Telescope Imaging Spectrograph of the Hubble Space Telescope and the Far Ultraviolet Spectroscopic Explorer ...
Adam M. Ritchey +3 more
doaj +1 more source
CO TO H2 RATIO OF INTERSTELLAR MOLECULAR CLOUDS IN THE DIRECTIONS OF EARLY TYPE STARS [PDF]
Journal of Astronomy and Space Sciences, 2004 We present measurements of interstellar CO absorption lines in the spectra of 7 early-type stars that were observed with the FUSE(Far Ultraviolet Spectroscopic Explorer).
Jae-Woo Park +2 more
doaj +1 more source
Interstellar Matter Structure along the Line of Sight to Cyg X-1
Open Astronomy, 2015 High-resolution spectra (R = 60 000) of Cyg X-1 = V1357 Cyg obtained with the NES echelle spectrograph of the Russian 6 meter telescope (3950–6690 Å) were used to study narrow interstellar absorption lines.
Bochkarev N. G. +3 more
doaj +1 more source