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The Small Magellanic Cloud (SMC) hosts a large number of Be/X-ray binaries,however no Be/white dwarf system is known so far, although population synthesiscalculations predict that they might be more frequent than Be/neutron starsystems. XMMUJ010147.5-715550 was found as a new faint super-soft X-ray source(SSS) with a likely Be star optical counterpart. We investigate the nature ofthis system and search for further high-absorbed candidates in the SMC. Weanalysed the XMM-Newton X-ray spectrum and light curve, optical photometry, andthe I-band OGLE III light curve. The X-ray spectrum is well represented byblack-body and white dwarf atmosphere models with highly model-dependenttemperature between 20 and 100 eV. The likely optical counterpart AzV 281showed low near infrared emission during X-ray activity, followed by abrightening in the I-band afterwards. We find further candidates forhigh-absorbed SSSs with a blue star as counterpart. We discussXMMUJ010147.5-715550 as the first candidate for a Be/white dwarf binary systemin the SMC.

A new super-soft X-ray source in the Small Magellanic Cloud: Discovery of the first Be/white dwarf system in the SMC?