First detection of a gravitational microlensing candidate toward the Small Magellanic Cloud

C. Alcock, R. A. Allsman, D. Alves, T. S. Axelrod, A. C. Becker, D. P. Bennett, K. H. Cook, K. C. Freeman, K. Griest, M. J. Keane, M. J. Lehner, S. L. Marshall, D. Minniti, B. A. Peterson, M. R. Pratt, P. J. Quinn, A. W. Rodgers, C. W. Stubbs, W. Sutherland, A. B. TomaneyT. Vandehei, D. Welch

Resultado de la investigación: Contribución a una revistaArtículo

43 Citas (Scopus)

Resumen

We report the first discovery of a gravitational microlensing candidate toward a new population of source stars, the Small Magellanic Cloud (SMC). The candidate event's light curve shows no variation for 3 yr before an upward excursion lasting ∼217 days that peaks around 1997 January 11 at a magnification of ∼2.1. Microlensing events toward the Large Magellanic Cloud and the Galactic bulge have allowed important conclusions to be reached on the stellar and dark matter content of the Milky Way. The SMC gives a new line of sight through the Milky Way and is expected to prove useful in determining the flattening of the Galactic halo.

Idioma originalInglés
Páginas (desde-hasta)L11-L13
PublicaciónAstrophysical Journal
Volumen491
N.º1 PART II
DOI
EstadoPublicada - 1997

Áreas temáticas de ASJC Scopus

  • Astronomía y astrofísica
  • Ciencias planetarias y espacial

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    Alcock, C., Allsman, R. A., Alves, D., Axelrod, T. S., Becker, A. C., Bennett, D. P., Cook, K. H., Freeman, K. C., Griest, K., Keane, M. J., Lehner, M. J., Marshall, S. L., Minniti, D., Peterson, B. A., Pratt, M. R., Quinn, P. J., Rodgers, A. W., Stubbs, C. W., Sutherland, W., ... Welch, D. (1997). First detection of a gravitational microlensing candidate toward the Small Magellanic Cloud. Astrophysical Journal, 491(1 PART II), L11-L13. https://doi.org/10.1086/311053