Cited by 17Dark Matter and Cosmic PhenomenaStellar, planetary, and galactic studiesAdaptive optics and wavefront sensing

Does transparent hidden matter generate optical scintillation?

Open access
Moniez, M.·2003·Astronomy & Astrophysics

Abstract

Stars twinkle because their light goes through the atmosphere. The same phenomenon is expected when the light of extra-galactic stars goes through a Galactic – disk or halo – refractive medium. Because of the large distances involved here, the length and time scales of the optical intensity fluctuations resulting from the wave distortions are accessible to current technology. In this paper, we discuss the different possible scintillation regimes and we focus on the so-called strong diffractive regime that is likely to produce large intensity contrasts. The critical relationship between the source angular size and the intensity contrast in optical wavelengths is also discussed in detail. We propose to monitor small extra-galactic stars every ~10 s to search for intensity scintillation produced by molecular hydrogen clouds. We discuss means to discriminate such hidden matter signals from the foreground effects on light propagation. Appropriate observation of the scintillation process described here should allow one to detect column density stochastic variations in Galactic molecular clouds of the order of ~, that is per ~ transverse distance.

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Crossref · 10.1051/0004-6361:20031478

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  • The individual sequences would be sensitive to 1% variability on subminute timescales, allowing discovery of planetary eclipses and interstellar scintillation effects.

    “The individual sequences would be sensitive to 1% variability on subminute timescales, allowing discovery of planetary eclipses and of interstellar scintillation effects, expected when the light of a background star propagates through a turbulent gas medium ( Moniez 2003; Habibi et al. 2011 ) .”

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Research works printed but not linked: 5

  1. Elson, R. A. W., Gilmore, G. F., & Santiago, B. X. 1997 [astro-ph/9705149] · arXiv
  2. O. R. Frisch (Pergamon Press)
  3. Lyne, A. G., & Graham-Smith., F. 1998, Pulsar Astronomy (Cambridge University Press)
  4. Narayan, R. 1992, Phil. Trans. R. Soc. Lond. A, 341, 151
  5. Sommerfeld, A. 1954, Optics (New York Academic Press Inc.)

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Authors
Moniez, M.
Affiliations
Université Paris-Sud (FR)
Corresponding author
Moniez, M.
Venue
Astronomy & Astrophysics
Publisher
EDP Sciences
Published
2003-11-25
Volume
412
Issue
1
Pages
105-120
ISSN
  • 0004-6361 (ISSN-L)
  • 1432-0746
OpenAlex
W2122779161
Cited by
17
References
27
Citations by year
2023: 2 · 2020: 1 · 2019: 1 · 2016: 3 · 2014: 1 · 2013: 2 · 2012: 2
FWCI
0.17
Type
journal article
Language
en
Open access
Locations
  • Astronomy and Astrophysics (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • Springer Link (Chiba Institute of Technology) (submittedVersion)
  • HAL (submittedVersion)
  • CERN Document Server (European Organization for Nuclear Research) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Dark Matter and Cosmic Phenomena
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Adaptive optics and wavefront sensing
Keywords
optical scintillation, stellar scintillation, Galactic halo, Galactic disk, intensity contrast, interstellar medium, wavefront distortion

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