Nwaokoro, E.E.NwaokoroPhillipps, S.S.PhillippsYoung, A. J.A. J.YoungBaldry, I.I.BaldryBONGIORNO, ANGELAANGELABONGIORNOBremer, M. N.M. N.BremerBrown, M. J.I.M. J.I.BrownCHIAPPETTI, LUCIOLUCIOCHIAPPETTIDe Propris, R.R.De ProprisDriver, S. P.S. P.DriverElyiv, A.A.ElyivFotopoulou, S.S.FotopoulouGiles, P. A.P. A.GilesHopkins, A. M.A. M.HopkinsMaughan, B.B.MaughanMcGee, S.S.McGeePacaud, F.F.PacaudPierre, M.M.PierrePlionis, M.M.PlionisPOGGIANTI, Bianca MariaBianca MariaPOGGIANTIVignali, C.C.Vignali2022-03-292022-03-2920210035-8711http://hdl.handle.net/20.500.12386/32060Relatively few X-ray sources are known that have low-mass galaxies as hosts. This is an important restriction on studies of active galactic nuclei (AGNs), hence black holes, and of X-ray binaries (XRBs) in low-mass galaxies; addressing it requires very large samples of both galaxies and X-ray sources. Here, we have matched the X-ray point sources found in the XXL-N field of the XXL survey (with an X-ray flux limit of ∼6 × 10-15 erg s-1 cm-2 in the [0.5-2] keV band) to galaxies with redshifts from the Galaxy And Mass Assembly (GAMA) G02 survey field (down to a magnitude limit r = 19.8) in order to search for AGNs and XRBs in GAMA galaxies, particularly those of low optical luminosity or stellar mass (fainter than Mr =-19 or M∗ ≲ 109.5, M⊙). Out of a total of 1200 low-mass galaxies in the overlap region, we find a total of 28 potential X-ray source hosts, though this includes possible background contaminants. From a combination of photometry (optical and infrared colours), positional information, and optical spectra, we deduce that most of the ∼20 X-ray sources genuinely in low-mass galaxies are high-mass X-ray binaries in star-forming galaxies. None of the matched sources in a low-mass galaxy has a BPT classification as an AGN, and even ignoring this requirement, none passes both criteria of close match between the X-ray source position and optical galaxy centre (separation ≤3 arcsec) and high [O iii] line luminosity (above 1040.3 erg s-1).STAMPAenArticle10.1093/mnras/stab2422-s2.0-85117495319https://api.elsevier.com/content/abstract/scopus_id/85117495319https://academic.oup.com/mnras/article/502/2/3101/6123886?login=trueFIS/05 - ASTRONOMIA E ASTROFISICA