Optical counterparts of ULXs in two dwarf galaxies: NGC 4861 and NGC 4449

ABSTRACT We present the results of a search for optical candidates of ultraluminous X-ray sources (ULXs) in two dwarf galaxies, NGC 4861 and NGC 4449, using Hubble Space Telescope (HST) archival data. With precise astrometry, we confirm that NGC 4861 X1 is associated with an H ii complex and we conc...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2021-07, Vol.505 (1), p.771-782
Hauptverfasser:	Ela, M Ozdogan, Akyuz, A, Aksaker, N, Avdan, S, Oralhan, I Akkaya, Vinokurov, A, Allak, S, Solovyeva, Y, Atapin, K, Bizyaev, D
Format:	Artikel
Sprache:	eng
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