HATS-43b, HATS-44b, HATS-45b, and HATS-46b: four short period transiting giant planets in the Neptune Jupiter mass range
Author
dc.contributor.author
Brahm, R.
Author
dc.contributor.author
Hartman, J. D.
Author
dc.contributor.author
Jordan, A.
Author
dc.contributor.author
Díaz, M.
Admission date
dc.date.accessioned
2018-07-26T20:46:48Z
Available date
dc.date.available
2018-07-26T20:46:48Z
Publication date
dc.date.issued
2018
Cita de ítem
dc.identifier.citation
The Astronomical Journal, 155: 112 (18pp), 2018
es_ES
Identifier
dc.identifier.other
10.3847/1538-3881/aaa898
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/150354
Abstract
dc.description.abstract
We report the discovery of four short-period extrasolar planets transiting moderately bright stars from photometric measurements of the HATSouth network coupled to additional spectroscopic and photometric follow-up observations. While the planet masses range from 0.26 to 0.90 M-J, the radii are all approximately a Jupiter radii, resulting in a wide range of bulk densities. The orbital period of the planets ranges from 2.7 days to 4.7 days, with HATS-43b having an orbit that appears to be marginally non-circular (e = 0.173 +/- 0.089). HATS-44 is notable for having a high metallicity ([Fe/H]= 0.320 +/- 0.071). The host stars spectral types range from late F to early K, and all of them are moderately bright (13.3 < V < 14.4), allowing the execution of future detailed follow-up observations. HATS-43b and HATS-46b, with expected transmission signals of 2350 ppm and 1500 ppm, respectively, are particularly well suited targets for atmospheric characterization via transmission spectroscopy.
es_ES
Patrocinador
dc.description.sponsorship
NSF MRI
NSF/AST-0723074
NASA
NNX09AB29G
NNX12AH91H
NNX17AB61G
NNX14AE87G
FONDECYT
1171208
BASAL CATA
PFB-06
project "Millennium Institute of Astrophysics (MAS)" of the Millennium Science Initiative, Chilean Ministry of Economy
IC120009
Robert Martin Ayers Sciences Fund
NSF/AST-1108686