SIMBAD references

2020A&A...639A.130O - Astronomy and Astrophysics, volume 639A, 130-130 (2020/7-1)

Following the TraCS of exoplanets with Pan-Planets: Wendelstein-1b and Wendelstein-2b.

OBERMEIER C., STEUER J., KELLERMANN H., SAGLIA R.P., HENNING T., RIFFESER A., HOPP U., STEFANSSON G., CANAS C., NINAN J., MAHADEVAN S., ISAACSON H., HOWARD A.W., LIVINGSTON J., KOPPENHOEFER J. and BENDER R.

Abstract (from CDS):

Hot Jupiters seem to get rarer with decreasing stellar mass. The goal of the Pan-Planets transit survey was the detection of such planets and a statistical characterization of their frequency. Here, we announce the discovery and validation of two planets found in that survey, Wendelstein-1b and Wendelstein-2b, which are two short-period hot Jupiters that orbit late K host stars. We validated them both by the traditional method of radial velocity measurements with the HIgh Resolution Echelle Spectrometer and the Habitable-zone Planet Finder instruments and then by their Transit Color Signature (TraCS). We observed the targets in the wavelength range of 4000-24000Å and performed a simultaneous multiband transit fit and additionally determined their thermal emission via secondary eclipse observations. Wendelstein-1b is a hot Jupiter with a radius of 1.0314–0.0061+0.0061RJ and mass of 0.592–0.129+0.0165MJ, orbiting a K7V dwarf star at a period of 2.66d, and has an estimated surface temperature of about 1727–90+78K. Wendelstein-2b is a hot Jupiter with a radius of 1.1592–0.0210+0.0204RJ and a mass of 0.731–0.311+0.0541MJ, orbiting a K6V dwarf star at a period of 1.75 d, and has an estimated surface temperature of about 1852–140+120K. With this, we demonstrate that multiband photometry is an effective way of validating transiting exoplanets, in particular for fainter targets since radial velocity follow-up becomes more and more costly for those targets.

Abstract Copyright: © C. Obermeier et al. 2020

Journal keyword(s): planets and satellites: detection - planets and satellites: gaseous planets - stars: low-mass - techniques: image processing - techniques: photometric - occultations

Simbad objects: 8

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