J/ApJ/926/L8ivo://CDS.VizieR/J/ApJ/926/L8doi:10.26093/cds/vizier.19269008CDSWang X.-Y.Rice M.Wang S.Pu B.Stefansson G.Mahadevan S.,Radzom B.Giacalone S.Wu Z.-Y.Esposito T.M.Dalba P.A.Avsar A.,Holden B.Skiff B.Polakis T.Voeller K.Logsdon S.E.Klusmeyer J.,Schweiker H.Wu D.-H.Beard C.Dai F.Lubin J.Weiss L.M.,Bender C.F.Blake C.H.Dressing C.D.Halverson S.Hearty F.,Howard A.W.Huber D.Isaacson H.Jackman J.A.G.Llama J.,McElwain M.W.Rajagopal J.Roy A.Robertson P.Schwab C.,Shkolnik E.L.Wright J.T.Laughlin G.2026-07-02T11:58:33Z2023-12-04T15:25:53ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frvisible-astronomyspectroscopyradial-velocityphotometryexoplanetsWe present spectroscopic measurements of the Rossiter-McLaughlin effect for WASP-148b, the only known hot Jupiter with a nearby warm-Jupiter companion, from the WIYN/NEID and Keck/HIRES instruments. This is one of the first scientific results reported from the newly commissioned NEID spectrograph, as well as the second obliquity constraint for a hot Jupiter system with a close-in companion, after WASP-47. WASP-148b is consistent with being in alignment with the sky-projected spin axis of the host star, with {lambda}=-8.2{deg}_-9.7_^+8.7^. The low obliquity observed in the WASP-148 system is consistent with the orderly-alignment configuration of most compact multi-planet systems around cool stars with obliquity constraints, including our solar system, and may point to an early history for these well-organized systems in which migration and accretion occurred in isolation, with relatively little disturbance. By contrast, previous results have indicated that high-mass and hot stars appear to more commonly host a wide range of misaligned planets: not only single hot Jupiters, but also compact systems with multiple super-Earths. We suggest that, to account for the high rate of spin-orbit misalignments in both compact multi-planet and isolated-hot-Jupiter systems orbiting high-mass and hot stars, spin-orbit misalignments may be caused by distant giant planet perturbers, which are most common around these stellar types.2022ApJ...926L...8Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/926/L8CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/ApJS/159/141 : Spectroscopic properties of cool stars. I. (Valenti+, 2005)J/ApJ/707/446 : HAT-P-13 photometry follow-up (Bakos+, 2009)J/ApJ/757/18 : Rvels for 16 hot Jupiter host stars (Albrecht+, 2012)J/MNRAS/436/1883 : Properties of KOI host stars (Walkowicz+, 2013)J/ApJ/792/L31 : HARPS and HARPS-N 55 Cnc Rvels (Lopez-Morales+, 2014)J/ApJ/808/16 : Cannon: a new approach to determine abundances (Ness+, 2015)J/ApJ/834/17 : Mass & radius of planets & low mass stars (Chen+, 2017)J/AJ/155/255 : Rvel and activity measurements of HAT-P-11 (Yee+, 2018)J/AJ/157/52 : Radial velocity obs. in super-Earth systems (Bryan+, 2019)J/A+A/640/A32 : WASP-148 velocity curve (Hebrard+, 2020)J/AcA/70/203 : WASP-148 Ground-based Phot. Obs. (Maciejewski+, 2020)J/ApJ/898/119 : Archival Keck HIRES sp. analyzed with Cannon (Rice+, 2020)J/AJ/159/100 : Flux & RVs of G9-40 with K2 & HPF (Stefansson+, 2020)J/AJ/161/68 : Obliquities of 150 hot Kepler hosting stars (Louden+, 2021)J/AJ/162/89 : HIRES Rvel follow up for Kepler-129 (Zhang+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/926/L8https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/926/L8http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/926/L8https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/926/L8https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/926/L8http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/926/L8GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/ApJ/926/L8/rvSpectroscopic radial velocities of WASP-148 (Data behind Figure 1)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarcentric Julian Date; TBDdtime.epochdoubleRVel[-5651/15] Radial velocitym/sphys.veloc;pos.heliocentricdoublee_RVel[1.5/12] Internal uncertainty in RVelm/sstat.error;spect.dopplerVelocfloatInstInstrument used ("HIRES", "NEID")meta.id;instrcharJ/ApJ/926/L8/lcPhotometric transit observations of WASP-148 (Data behind Figure 2)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarcentric Julian Date; TBDdtime.epochdoubleNFlux[0.97/1.01] Normalized fluxm/sphot.flux;arith.ratiodoublee_NFlux[0.0008/0.013] Uncertainty in NFluxm/sstat.errordoubleInstInstrument used (1)instr.setupchar