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EXPLORING THE OVERABUNDANCE OF ULXs IN METAL- AND DUST-POOR LOCAL LYMAN BREAK ANALOGS

  • Authors: Antara R. Basu-Zych, Bret Lehmer, Tassos Fragos, Ann Hornschemeier, Mihoko Yukita, Andreas Zezas, and Andy Ptak

2016 The Astrophysical Journal 818 140.

  • Provider: AAS Journals

Caption: Figure 3.

We measure the cumulative number counts for VV 114 (red) and Haro 11 (blue) and compare with the star-forming galaxy XLF from Mineo et al. (2012, shown in gray). Based on our observations of these two LBAs (black curve shows the combined XLF from both galaxies), we find that low-metallicity LBAs appear to have more ULXs at ﹩{L}_{\mathrm{HX}}﹩ ﹩\gt \;{10}^{40}﹩ erg s−1 than expected.

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