Results 1 to 10 of about 5,560 (224)

INTERSTELLAR ABSORPTION IN SOME DIRECTIONS

open access: yesOdessa Astronomical Publications, 2017
Interstellar absorption has been investigated towards Captain Areas KA-64, KA-65, KA-86, KA-87, KA- 88, KA-98 by the method of a colour excess. The star magnitudes V and colour indexes (B-V) of stars were received by Yasinskaya et al.
M. P. Yasinskaya, A. V. Dragunova
doaj   +3 more sources

INTERSTELLAR MEDIUM AND DECAMETER RADIO SPECTROSCOPY [PDF]

open access: yesRadio Physics and Radio Astronomy, 2021
Purpose: The analytical review of the main results of research in the new direction of the low-frequency radio astronomy, the interstellar medium radio spectroscopy at decameter waves, which had led to astrophysical discovery, recording of the radio ...
S. V. Stepkin   +3 more
doaj   +1 more source

How catching the interstellar wind in the inner solar system led the way on a road to interdisciplinary research between heliophysics and astrophysics

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Combined in situ observations of the interstellar wind through the solar system and of its pickup ions (PUIs), implanted after ionization in the solar wind, explain, in comparison with interstellar absorption lines of nearby stars, that the Sun is in an ...
Eberhard Möbius
doaj   +1 more source

Presumed Detection of C5 Molecule in the Interstellar Medium

open access: yesThe Astrophysical Journal, 2022
The paper suggests the presence of the carbon chain C _5 molecule in translucent, interstellar H i clouds. This species, the only five atom interstellar molecule, observable in dark, translucent clouds, seems to be observable in reasonably dense clouds ...
J. Krełowski, R. Hakalla, W. Szajna
doaj   +1 more source

Turbulence in the interstellar medium [PDF]

open access: yes, 2014
Turbulence is ubiquitous in the insterstellar medium and plays a major role in several processes such as the formation of dense structures and stars, the stability of molecular clouds, the amplification of magnetic fields, and the re-acceleration and ...
Chian, A. C. -L.   +9 more
core   +1 more source

INVESTIGATION OF DIFFUSE INTERSTELLAR BANDS OF ORGANIC MOLECULES IN THE SPECTRA OF CEPHEID STARS

open access: yesOdessa 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

Electronic spectroscopy of cold ions in a radio-frequency trap [PDF]

open access: yes, 2010
The low density of ions in mass spectrometers generally precludes direct absorption measurements. The spectrum of ions can nonetheless be obtained by using resonance two-color photofragmentation or multiphoton photofragmentation techniques.
Rudnev, Vitaly S.
core   +1 more source

Electronic spectroscopy of open-chain and aromatic hydrocarbon cations in neon matrices [PDF]

open access: yes, 2012
Considerable scientific interest has been devoted to the so-called diffuse interstellar bands (DIBs)—hundreds of absorption features of different strength and width, located in the visible and near infrared, and arising from the interstellar medium ...
Nagy, Adam
core   +1 more source

Electronic spectroscopy of cold cations in a 22-pole trap by indirect methods [PDF]

open access: yes, 2013
The confining capabilities of a 22-pole ion trap have been employed to mea- sure electronic spectra of cations of astrophysical relevance. The ion trap sits on the head of a closed cycle cryostat, enabling collisional cooling of the confined ions with
Chakrabarty, Satrajit
core   +1 more source

A Reexamination of Phosphorus and Chlorine Depletions in the Diffuse Interstellar Medium

open access: yesThe 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

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