High cadence near infrared timing observations of extrasolar planets

C. Cáceres, V. D. Ivanov, D. Minniti, D. Naef, C. Melo, E. Mason, F. Selman, G. Pietrzynski

Resultado de la investigación: Article

27 Citas (Scopus)

Resumen

Currently the only technique sensitive to Earth mass planets around nearby stars (that are too close for microlensing) is the monitoring of the transit time variations. We search for additional planets in the systems of the hot Neptune GJ 436b, and the hot-Jupiter XO-1b, using high cadence observations in the J and KS bands. New high-precision transit timing measurements are reported: GJ 436b TC = 2 454 238.47898 ± 0.00046 HJD; XO-1b TC(A) = 2 454 218.83331 ± 0.00114 HJD, TC(B) = 2 454 222.77539 ± 0.00036 HJD, TC(C) = 2 454 222.77597 ± 0.00039 HJD, TC(D) = 2 454 226.71769 ± 0.00034 HJD, and they were used to derive new ephemeris values. We also determined depths for these transits. No statistically significant timing deviations were detected. We demonstrate that the high cadence, ground based near-infrared observations are successful in constraining the mean transit time to ̃ 30 s, and are a viable alternative to space missions.

Idioma originalEnglish
Páginas (desde-hasta)481-486
Número de páginas6
PublicaciónAstronomy and Astrophysics
Volumen507
N.º1
DOI
EstadoPublished - 3 nov 2009

Huella dactilar

transit time
extrasolar planets
transit
planets
near infrared
planet
time measurement
Neptune (planet)
Neptune
space missions
Jupiter (planet)
Jupiter
deviation
stars
monitoring

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Citar esto

Cáceres, C. ; Ivanov, V. D. ; Minniti, D. ; Naef, D. ; Melo, C. ; Mason, E. ; Selman, F. ; Pietrzynski, G. / High cadence near infrared timing observations of extrasolar planets. En: Astronomy and Astrophysics. 2009 ; Vol. 507, N.º 1. pp. 481-486.
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title = "High cadence near infrared timing observations of extrasolar planets",
abstract = "Currently the only technique sensitive to Earth mass planets around nearby stars (that are too close for microlensing) is the monitoring of the transit time variations. We search for additional planets in the systems of the hot Neptune GJ 436b, and the hot-Jupiter XO-1b, using high cadence observations in the J and KS bands. New high-precision transit timing measurements are reported: GJ 436b TC = 2 454 238.47898 ± 0.00046 HJD; XO-1b TC(A) = 2 454 218.83331 ± 0.00114 HJD, TC(B) = 2 454 222.77539 ± 0.00036 HJD, TC(C) = 2 454 222.77597 ± 0.00039 HJD, TC(D) = 2 454 226.71769 ± 0.00034 HJD, and they were used to derive new ephemeris values. We also determined depths for these transits. No statistically significant timing deviations were detected. We demonstrate that the high cadence, ground based near-infrared observations are successful in constraining the mean transit time to ̃ 30 s, and are a viable alternative to space missions.",
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Cáceres, C, Ivanov, VD, Minniti, D, Naef, D, Melo, C, Mason, E, Selman, F & Pietrzynski, G 2009, 'High cadence near infrared timing observations of extrasolar planets', Astronomy and Astrophysics, vol. 507, n.º 1, pp. 481-486. https://doi.org/10.1051/0004-6361/200810908

High cadence near infrared timing observations of extrasolar planets. / Cáceres, C.; Ivanov, V. D.; Minniti, D.; Naef, D.; Melo, C.; Mason, E.; Selman, F.; Pietrzynski, G.

En: Astronomy and Astrophysics, Vol. 507, N.º 1, 03.11.2009, p. 481-486.

Resultado de la investigación: Article

TY - JOUR

T1 - High cadence near infrared timing observations of extrasolar planets

AU - Cáceres, C.

AU - Ivanov, V. D.

AU - Minniti, D.

AU - Naef, D.

AU - Melo, C.

AU - Mason, E.

AU - Selman, F.

AU - Pietrzynski, G.

PY - 2009/11/3

Y1 - 2009/11/3

N2 - Currently the only technique sensitive to Earth mass planets around nearby stars (that are too close for microlensing) is the monitoring of the transit time variations. We search for additional planets in the systems of the hot Neptune GJ 436b, and the hot-Jupiter XO-1b, using high cadence observations in the J and KS bands. New high-precision transit timing measurements are reported: GJ 436b TC = 2 454 238.47898 ± 0.00046 HJD; XO-1b TC(A) = 2 454 218.83331 ± 0.00114 HJD, TC(B) = 2 454 222.77539 ± 0.00036 HJD, TC(C) = 2 454 222.77597 ± 0.00039 HJD, TC(D) = 2 454 226.71769 ± 0.00034 HJD, and they were used to derive new ephemeris values. We also determined depths for these transits. No statistically significant timing deviations were detected. We demonstrate that the high cadence, ground based near-infrared observations are successful in constraining the mean transit time to ̃ 30 s, and are a viable alternative to space missions.

AB - Currently the only technique sensitive to Earth mass planets around nearby stars (that are too close for microlensing) is the monitoring of the transit time variations. We search for additional planets in the systems of the hot Neptune GJ 436b, and the hot-Jupiter XO-1b, using high cadence observations in the J and KS bands. New high-precision transit timing measurements are reported: GJ 436b TC = 2 454 238.47898 ± 0.00046 HJD; XO-1b TC(A) = 2 454 218.83331 ± 0.00114 HJD, TC(B) = 2 454 222.77539 ± 0.00036 HJD, TC(C) = 2 454 222.77597 ± 0.00039 HJD, TC(D) = 2 454 226.71769 ± 0.00034 HJD, and they were used to derive new ephemeris values. We also determined depths for these transits. No statistically significant timing deviations were detected. We demonstrate that the high cadence, ground based near-infrared observations are successful in constraining the mean transit time to ̃ 30 s, and are a viable alternative to space missions.

KW - Methods: observational

KW - Stars: individual: GJ 436

KW - Stars: individual: XO-1b

KW - Stars: planetary systems

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DO - 10.1051/0004-6361/200810908

M3 - Article

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VL - 507

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JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

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