J/A+A/582/A33 K2-19b light curve (Armstrong+, 2015)
One of the closest exoplanet pairs to the 3:2 mean motion resonance:
K2-19b and c.
Armstrong D.J., Santerne A., Veras D., Barros S.C.C., Demangeon O.,
Lillo-Box J., McCormac J., Osborn H.P., Tsantaki M., Almenara J.-M.,
Barrado D., Boisse I., Bonomo A.S., Brown D.J.A., Bruno G., Rey Cerda J.,
Courcol B., Deleuil M., Diaz R.F., Doyle A.P., Hebrard G., Kirk J.,
Lam K.W.F., Pollacco D.L., Rajpurohit A., Spake J., Walker S.R.
<Astron. Astrophys. 582, A33 (2015)>
=2015A&A...582A..33A 2015A&A...582A..33A (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Planets
Keywords: planets and satellites: individual: EPIC201505350c -
planets and satellites: detection -
planets and satellites: general -
planets and satellites: dynamical evolution and stability -
planets and satellites: individual: EPIC201505350b
Abstract:
The K2 mission has recently begun to discover new and diverse
planetary systems. In December 2014 Campaign 1 data from the mission
was released, providing high-precision photometry for ∼22000 objects
over an 80 day timespan. We searched these data with the aim of
detecting further important new objects.
Our search through two separate pipelines led to the independent
discovery of K2-19b & c, a two-planet system of Neptune sized objects
(4.2 and 7.2R{earth}), orbiting a K dwarf extremely close to the 3:2
mean motion resonance. The two planets each show transits, sometimes
simultaneously due to their proximity to resonance and alignment of
conjunctions.
Description:
The Near Infrared Transiting ExoplanetS (NITES) Telescope is a
semi-robotic 0.4m (f/10) Meade LX200GPS Schmidt-Cassegrain telescope
installed at the ORM, La Palma.
One transit of K2-19b was observed on 2015 Feb 28. The telescope was
defocused slightly to 3.3 FWHM and 814 images of 20s exposure time
were obtained with 5s dead time between each. Observations were
obtained without a filter.
The table presents data taken with the NITES telescope shown in Figure
1 of the publication.
Objects:
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RA (2000) DE Designation(s)
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11 39 50.576 +00 36 12.87 K2-19 (EPIC 201505350)
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
nites.dat 32 814 K2-19b data taken with the NITES telescope
plotted in Figure 1
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See also:
J/A+A/579/A19 : K2 Variable Catalogue (Armstrong+, 2015)
Byte-by-byte Description of file: nites.dat
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Bytes Format Units Label Explanations
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1- 16 F16.8 d HJD Heliocentric Julian date
18- 24 F7.5 --- RFlux Relative flux
26- 32 F7.5 --- e_RFlux Relative flux error
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Acknowledgements:
David J. Armstrong, d.j.armstrong(at)warwick.ac.uk
(End) Patricia Vannier [CDS] 21-Aug-2015