WASP-74 griz_s_ light curves

DOI

We present new transit observations of the hot Jupiter WASP-74 b (Teq~1860K) using the high-resolution spectrograph HARPS-N and the multi-colour simultaneous imager MuSCAT2. We refined the orbital properties of the planet and its host star and measured its obliquity for the first time. The measured sky-projected angle between the stellar spin-axis and the orbital axis of the planet is compatible with an orbit that is well-aligned with the equator of the host star ({lambda}=0.77+/-0.99{deg}). We are not able to detect any absorption feature of H{alpha} or any other atomic spectral features in the high-resolution transmission spectra of this source owing to low S/N at the line cores. Despite previous claims regarding the presence of strong optical absorbers such as TiO and VO gases in the atmosphere of WASP-74 b, new ground-based photometry combined with a reanalysis of previously reported observations from the literature show a slope in the low-resolution transmission spectrum that is steeper than expected from Rayleigh scattering alone.

Identifier
DOI http://doi.org/10.26093/cds/vizier.36420050
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/A+A/642/A50
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/642/A50
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/642/A50
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/A+A/642/A50
Provenance
Creator Luque R.; Casasayas-Barris N.; Parviainen H.; Chen G.; Palle E.,Livingston J.; Bejar V.J.S.; Crouzet N.; Esparza-Borges E.; Fukui A.,Hidalgo D.; Kawashima Y.; Kawauchi K.; Klagyivik P.; Kurita S.; Kusakabe N.,de Leon J.P.; Madrigal-Aguado A.; Montanes-Rodriguez P.; Mori M.; Murgas F.,Narita N.; Nishiumi T.; Nowak G.; Oshagh M.; Sanchez-Benavente M.,Stangret M.; Tamura M.; Terada Y.; Watanabe N.
Publisher CDS
Publication Year 2020
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Exoplanet Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy