English

Average Star Formation Parameters in the Local Volume of the Universe

Astrophysics of Galaxies 2024-07-02 v1

Abstract

Based on the fluxes of 1400 nearby galaxies observed in far ultraviolet (FUV{\rm FUV}) and in the Hα\alpha line, we determined the global star formation rate per unit Universe volume, jSFR=(1.34±0.16)102Mj_{\rm SFR}=(1.34\pm0.16) 10^{-2}\,M_{\odot} yr1^{-1} Mpc3^{-3}. With the current star formation rate (SFR), (65±4)65\pm4)% of the observed stellar mass is reproduced in the cosmological time of 13.8 billion years. The neutral gas reserves in the Local Volume with a radius of 11 Mpc will facilitate the current SFR on a scale of approximately another 5 billion years.

Keywords

Cite

@article{arxiv.2407.01287,
  title  = {Average Star Formation Parameters in the Local Volume of the Universe},
  author = {I. D. Karachentsev and A. A. Popova},
  journal= {arXiv preprint arXiv:2407.01287},
  year   = {2024}
}

Comments

Accepted by Astrophysical Bulletin (v.79, No.2), 12 pages, 9 figures, 1 table