Browsing Research publications by Author "Gebran, M."

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    • A and F stars as probes of outer Galactic disc kinematics 

      Harris, A.; Drew, J. E.; Farnhill, H. J.; Monguió, M.; Gebran, M.; Wright, N. J.; Drake, J. J.; Sale, S. E. (2018-04-01)
      Previous studies of the rotation law in the outer Galactic disc have mainly used gas tracers or clump giants. Here, we explore A and F stars as alternatives: these provide a much denser sampling in the outer disc than gas ...

    • The Gaia spectrophotometric standard stars survey. I. Preliminary results 

      Pancino, E.; Altavilla, G.; Marinoni, S.; Cocozza, G.; Carrasco, J. M.; Bellazzini, M.; Bragaglia, A.; Federici, L.; Rossetti, E.; Cacciari, C.; Nunez, L. Balaguer; Castro, A.; Figueras, F.; Pecci, F. Fusi; Galleti, S.; Gebran, M.; Jordi, C.; Lardo, C.; Masana, E.; Monguio Montells, Maria; Montegriffo, P.; Ragaini, S.; Schuster, W.; Trager, S.; Vilardell, F.; Voss, H. (2012-11-01)
      We describe two ground based observing campaigns aimed at building a grid of approximately 200 spectrophotometric standard stars (SPSS), with an internal ~1% precision and tied to Vega within ~3%, for the absolute flux ...