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: Article

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 originalEnglish
PublicaciónAstrophysical Journal
Volumen491
N.º1 PART II
EstadoPublished - 1 ene 1997

Huella dactilar

Magellanic clouds
galactic bulge
galactic halos
flattening
magnification
line of sight
light curve
dark matter
stars
detection

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Citar esto

Alcock, C., Allsman, R. A., Alves, D., Axelrod, T. S., Becker, A. C., Bennett, D. P., ... Welch, D. (1997). First detection of a gravitational microlensing candidate toward the Small Magellanic Cloud. Astrophysical Journal, 491(1 PART II).
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. ; Tomaney, A. B. ; Vandehei, T. ; Welch, D. / First detection of a gravitational microlensing candidate toward the Small Magellanic Cloud. En: Astrophysical Journal. 1997 ; Vol. 491, N.º 1 PART II.
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title = "First detection of a gravitational microlensing candidate toward the Small Magellanic Cloud",
abstract = "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.",
keywords = "Galaxies: individual (Small Magellanic Cloud), Galaxy: halo, Gravitational lensing",
author = "C. Alcock and Allsman, {R. A.} and D. Alves and Axelrod, {T. S.} and Becker, {A. C.} and Bennett, {D. P.} and Cook, {K. H.} and Freeman, {K. C.} and K. Griest and Keane, {M. J.} and Lehner, {M. J.} and Marshall, {S. L.} and D. Minniti and Peterson, {B. A.} and Pratt, {M. R.} and Quinn, {P. J.} and Rodgers, {A. W.} and Stubbs, {C. W.} and W. Sutherland and Tomaney, {A. B.} and T. Vandehei and D. Welch",
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Alcock, C, Allsman, RA, Alves, D, Axelrod, TS, Becker, AC, Bennett, DP, Cook, KH, Freeman, KC, Griest, K, Keane, MJ, Lehner, MJ, Marshall, SL, Minniti, D, Peterson, BA, Pratt, MR, Quinn, PJ, Rodgers, AW, Stubbs, CW, Sutherland, W, Tomaney, AB, Vandehei, T & Welch, D 1997, 'First detection of a gravitational microlensing candidate toward the Small Magellanic Cloud', Astrophysical Journal, vol. 491, n.º 1 PART II.

First detection of a gravitational microlensing candidate toward the Small Magellanic Cloud. / 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.; Tomaney, A. B.; Vandehei, T.; Welch, D.

En: Astrophysical Journal, Vol. 491, N.º 1 PART II, 01.01.1997.

Resultado de la investigación: Article

TY - JOUR

T1 - First detection of a gravitational microlensing candidate toward the Small Magellanic Cloud

AU - Alcock, C.

AU - Allsman, R. A.

AU - Alves, D.

AU - Axelrod, T. S.

AU - Becker, A. C.

AU - Bennett, D. P.

AU - Cook, K. H.

AU - Freeman, K. C.

AU - Griest, K.

AU - Keane, M. J.

AU - Lehner, M. J.

AU - Marshall, S. L.

AU - Minniti, D.

AU - Peterson, B. A.

AU - Pratt, M. R.

AU - Quinn, P. J.

AU - Rodgers, A. W.

AU - Stubbs, C. W.

AU - Sutherland, W.

AU - Tomaney, A. B.

AU - Vandehei, T.

AU - Welch, D.

PY - 1997/1/1

Y1 - 1997/1/1

N2 - 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.

AB - 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.

KW - Galaxies: individual (Small Magellanic Cloud)

KW - Galaxy: halo

KW - Gravitational lensing

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M3 - Article

AN - SCOPUS:21944456201

VL - 491

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 1 PART II

ER -

Alcock C, Allsman RA, Alves D, Axelrod TS, Becker AC, Bennett DP y otros. First detection of a gravitational microlensing candidate toward the Small Magellanic Cloud. Astrophysical Journal. 1997 ene 1;491(1 PART II).