Transiting extrasolar planetary candidates in the Galactic bulge

Kailash C. Sahu, Stefano Casertano, Howard E. Bond, Jeff Valenti, T. Ed Smith, Dante Minniti, Manuela Zoccali, Mario Livio, Nino Panagia, Nikolai Piskunov, Thomas M. Brown, Timothy Brown, Alvio Renzini, R. Michael Rich, Will Clarkson, Stephen Lubow

Resultado de la investigación: Article

72 Citas (Scopus)

Resumen

More than 200 extrasolar planets have been discovered around relatively nearby stars, primarily through the Doppler line shifts owing to reflex motions of their host stars, and more recently through transits of some planets across the faces of the host stars. The detection of planets with the shortest known periods, 1.2-2.5 days, has mainly resulted from transit surveys which have generally targeted stars more massive than 0.75M⊙, where M⊙ is the mass of the Sun. Here we report the results from a planetary transit search performed in a rich stellar field towards the Galactic bulge. We discovered 16 candidates with orbital periods between 0.4 and 4.2 days, five of which orbit stars of masses in the range 0.44-0.75M⊙. In two cases, radial-velocity measurements support the planetary nature of the companions. Five candidates have orbital periods below 1.0 day, constituting a new class of ultra-short-period planets, which occur only around stars of less than 0.88M⊙. This indicates that those orbiting very close to more-luminous stars might be evaporatively destroyed or that jovian planets around stars of lower mass might migrate to smaller radii.

Idioma originalEnglish
Páginas (desde-hasta)534-540
Número de páginas7
PublicaciónNature
Volumen443
N.º7111
DOI
EstadoPublished - 5 oct 2006

Huella dactilar

Planets
Doppler Effect
Orbit
Reflex

ASJC Scopus subject areas

  • Medicine(all)
  • General

Citar esto

Sahu, K. C., Casertano, S., Bond, H. E., Valenti, J., Smith, T. E., Minniti, D., ... Lubow, S. (2006). Transiting extrasolar planetary candidates in the Galactic bulge. Nature, 443(7111), 534-540. https://doi.org/10.1038/nature05158
Sahu, Kailash C. ; Casertano, Stefano ; Bond, Howard E. ; Valenti, Jeff ; Smith, T. Ed ; Minniti, Dante ; Zoccali, Manuela ; Livio, Mario ; Panagia, Nino ; Piskunov, Nikolai ; Brown, Thomas M. ; Brown, Timothy ; Renzini, Alvio ; Rich, R. Michael ; Clarkson, Will ; Lubow, Stephen. / Transiting extrasolar planetary candidates in the Galactic bulge. En: Nature. 2006 ; Vol. 443, N.º 7111. pp. 534-540.
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abstract = "More than 200 extrasolar planets have been discovered around relatively nearby stars, primarily through the Doppler line shifts owing to reflex motions of their host stars, and more recently through transits of some planets across the faces of the host stars. The detection of planets with the shortest known periods, 1.2-2.5 days, has mainly resulted from transit surveys which have generally targeted stars more massive than 0.75M⊙, where M⊙ is the mass of the Sun. Here we report the results from a planetary transit search performed in a rich stellar field towards the Galactic bulge. We discovered 16 candidates with orbital periods between 0.4 and 4.2 days, five of which orbit stars of masses in the range 0.44-0.75M⊙. In two cases, radial-velocity measurements support the planetary nature of the companions. Five candidates have orbital periods below 1.0 day, constituting a new class of ultra-short-period planets, which occur only around stars of less than 0.88M⊙. This indicates that those orbiting very close to more-luminous stars might be evaporatively destroyed or that jovian planets around stars of lower mass might migrate to smaller radii.",
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Sahu, KC, Casertano, S, Bond, HE, Valenti, J, Smith, TE, Minniti, D, Zoccali, M, Livio, M, Panagia, N, Piskunov, N, Brown, TM, Brown, T, Renzini, A, Rich, RM, Clarkson, W & Lubow, S 2006, 'Transiting extrasolar planetary candidates in the Galactic bulge', Nature, vol. 443, n.º 7111, pp. 534-540. https://doi.org/10.1038/nature05158

Transiting extrasolar planetary candidates in the Galactic bulge. / Sahu, Kailash C.; Casertano, Stefano; Bond, Howard E.; Valenti, Jeff; Smith, T. Ed; Minniti, Dante; Zoccali, Manuela; Livio, Mario; Panagia, Nino; Piskunov, Nikolai; Brown, Thomas M.; Brown, Timothy; Renzini, Alvio; Rich, R. Michael; Clarkson, Will; Lubow, Stephen.

En: Nature, Vol. 443, N.º 7111, 05.10.2006, p. 534-540.

Resultado de la investigación: Article

TY - JOUR

T1 - Transiting extrasolar planetary candidates in the Galactic bulge

AU - Sahu, Kailash C.

AU - Casertano, Stefano

AU - Bond, Howard E.

AU - Valenti, Jeff

AU - Smith, T. Ed

AU - Minniti, Dante

AU - Zoccali, Manuela

AU - Livio, Mario

AU - Panagia, Nino

AU - Piskunov, Nikolai

AU - Brown, Thomas M.

AU - Brown, Timothy

AU - Renzini, Alvio

AU - Rich, R. Michael

AU - Clarkson, Will

AU - Lubow, Stephen

PY - 2006/10/5

Y1 - 2006/10/5

N2 - More than 200 extrasolar planets have been discovered around relatively nearby stars, primarily through the Doppler line shifts owing to reflex motions of their host stars, and more recently through transits of some planets across the faces of the host stars. The detection of planets with the shortest known periods, 1.2-2.5 days, has mainly resulted from transit surveys which have generally targeted stars more massive than 0.75M⊙, where M⊙ is the mass of the Sun. Here we report the results from a planetary transit search performed in a rich stellar field towards the Galactic bulge. We discovered 16 candidates with orbital periods between 0.4 and 4.2 days, five of which orbit stars of masses in the range 0.44-0.75M⊙. In two cases, radial-velocity measurements support the planetary nature of the companions. Five candidates have orbital periods below 1.0 day, constituting a new class of ultra-short-period planets, which occur only around stars of less than 0.88M⊙. This indicates that those orbiting very close to more-luminous stars might be evaporatively destroyed or that jovian planets around stars of lower mass might migrate to smaller radii.

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VL - 443

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JO - Nature

JF - Nature

SN - 0028-0836

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Sahu KC, Casertano S, Bond HE, Valenti J, Smith TE, Minniti D y otros. Transiting extrasolar planetary candidates in the Galactic bulge. Nature. 2006 oct 5;443(7111):534-540. https://doi.org/10.1038/nature05158