SIMBAD references

2017MNRAS.470..606B - Mon. Not. R. Astron. Soc., 470, 606-611 (2017/September-1)

X-rays from Green Pea analogues.


Abstract (from CDS):

X-ray observations of two metal-deficient luminous compact galaxies (LCG; SHOC 486 and SDSS J084220.94+115000.2) with properties similar to the so-called Green Pea galaxies were obtained using the Chandra X-ray Observatory. Green Pea galaxies are relatively small, compact (a few kpc across) galaxies that get their green colour from strong [O III] λ5007 Å emission, an indicator of intense, recent star formation. These two galaxies were predicted to have the highest observed count rates, using the X-ray luminosity-star formation rate (LX-SFR) relation for X-ray binaries, from a statistically complete sample drawn from optical criteria. We determine the X-ray luminosity relative to SFR and metallicity for these two galaxies. Neither exhibits any evidence of active galactic nuclei, and we suspect that the X-ray emission originates from unresolved populations of high-mass X-ray binaries. We discuss the LX-SFR-metallicity plane for star-forming galaxies and show that the two LCGs are consistent with the prediction of this relation. This is the first detection of Green Pea analogues in X-rays.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: starburst - X-rays: binaries - X-rays: galaxies - X-rays: galaxies

Nomenclature: Table 1: [BK2017] SHOC 486 X-1 N=1, [BK2017] J0842 X-N (Nos 1-2).

Status at CDS:  

Simbad objects: 4

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