Cited by 270Stellar, planetary, and galactic studiesDark Matter and Cosmic PhenomenaGalaxies: Formation, Evolution, Phenomena

STARS, GAS, AND DARK MATTER IN THE SOLAR NEIGHBORHOOD

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McKee, Christopher F., Parravano, Antonio, Hollenbach, David J.·2015·The Astrophysical Journal

Abstract

We reanalyze data on the surface densities and vertical distribution of baryonic matter in the solar neighborhood and tabulate the results. We find a local total surface density of M dwarfs of , whcih is significantly higher than previous values. Our result for the total local surface density of visible stars (main-sequence stars and giants), , is close to previous estimates due to a cancellation of opposing effects: more mass in M dwarfs, less mass in the others. The total local surface density in white dwarfs is ; in brown dwarfs, it is , but with considerable uncertainty. We find that the total local surface density of stars and stellar remnants is , which is somewhat less than previous estimates but within the errors of many of them. We analyze data on 21 cm emission and absorption and obtain good agreement with recent results on the local amount of neutral atomic hydrogen obtained with the Planck satellite. The local surface density of gas is . The total baryonic mass surface density that we derive for the solar neighborhood is ( within 1.1 kpc of the midplane). Combining these results with others' measurements of the total surface density of matter within 1–1.1 kpc of the plane, we find that the local density of dark matter is GeV cm . The local density of all matter is . We discuss limitations on the properties of a possible thin disk of dark matter.

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  • The two recent determinations of Read (2014) and McKee et al. (2015) favour the contracted halo model; however, due to large uncertainties, the pure NFW model cannot be ruled out.

    “The two recent determinations of Read (2014) and McKee et al. (2015) favour the contracted halo model; however, due to large uncertainties, the pure NFW model cannot be ruled out.”

    From The milky way total mass profile as inferred from Gaia DR2 (2020) · cites this paper as McKee et al. (2015)

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  • The local total surface mass density Σ is given by McKee et al. (2015).

    “which is given by (McKee et al. 2015)”

    From The milky way total mass profile as inferred from Gaia DR2 (2020) · cites this paper as McKee et al. 2015

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Research works printed but not linked: 7

  1. Fritz, T. K., Chatzopoulos, S., Gerhard, O., et al. 2014, arXiv:1406.7568 · arXiv
  2. Jahreiß, H., & Wielen, R. 1997, in ESA Special Publication, Vol.402, The impact of HIPPARCOS on the Catalogue of Nearby Stars, ed. B. Battrick, M. A. C. Perryman & P. L. Bernacca (Noordwijk: ESA), 675
  3. Kramer, E. D., & Randall, L. 2015, preprint
  4. Kulkarni, S. R., & Fich, M. 1985, ApJ, 289, 792 · DOI · Paper page
  5. Randall, L., & Reece, M. 2014, PhRvL, 112, 161301 · DOI · Paper page
  6. Reach, W. T., Heiles, C., & Bernard, J.-P. 2015, arXiv:1508.07889 · arXiv
  7. Read, J. I. 2014, JPhG, 41, 063101 · DOI · Paper page

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Authors
McKee, C. F., Parravano, A., & Hollenbach, D. J.
Affiliations
  • University of California, Berkeley (US)
  • Universidad de Los Andes (VE)
  • Search for Extraterrestrial Intelligence (US)
Venue
The Astrophysical Journal
Published
2015-11-12
Volume
814
Issue
1
Pages
13
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
OpenAlex
W1864516950
Cited by
270
References
129
Citations by year
2026: 10 · 2025: 32 · 2024: 24 · 2023: 19 · 2022: 31 · 2021: 44 · 2020: 31 · 2019: 14 · 2018: 23 · 2017: 16 · 2016: 26
FWCI
12.33
Type
journal article
Language
en
Open access
Locations
  • The Astrophysical Journal (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
  • Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Dark Matter and Cosmic Phenomena
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
Keywords
solar neighborhood, baryonic surface density, dark matter density, M dwarfs, white dwarfs, brown dwarfs, stellar remnants, neutral hydrogen, HI 21 cm emission, Planck, local matter density

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