Detection of Na and K in the atmosphere of the hot Jupiter HAT-P-1b with P200/DBSP
arXiv:2207.12563 · doi:10.3847/1538-3881/ac8df6
Abstract
We present a new optical transmission spectrum of the hot Jupiter HAT-P-1b based on two transits observed with the Double Spectrograph (DBSP) on the Palomar 200-inch (P200) telescope. The DBSP transmission spectrum, covering a wavelength range from 3250 to 10007 Å, is consistent with that observed with the Hubble Space Telescope (HST), but the former has a finer spectral resolution. The DBSP spectrum alone reveals the presence of a pressure broadened line wing for Na, the line cores for both Na and K, and tentative evidence for HO. We obtain consistent results from the spectral retrieval analyses performed on the DBSP-only dataset and the DBSP, HST, and Spitzer combined dataset. Our retrievals suggest a mostly clear atmosphere for HAT-P-1b, with a cloud coverage of % that is dominated by enhanced haze. We derive subsolar abundances for Na, K, and C, and subsolar-to-solar for O. Future observations with James Webb Space Telescope and ground-based high-resolution spectrographs should be able to not only confirm the presence of these species but also stringently constrain the formation and migration pathways for HAT-P-1b.
arXiv comment24 pages, 14 figures. Accepted for publication in AJ
References in corpus (61)
- emcee: The MCMC Hammer
- The chemical composition of the Sun
- MultiNest: an efficient and robust Bayesian inference tool for cosmology and particle physics
- X-ray spectral modelling of the AGN obscuring region in the CDFS: Bayesian model selection and catalogue
- The VizieR database of Astronomical Catalogues
- Detection of Planetary Transits Across a Sun-like Star
- Detection of an Extrasolar Planet Atmosphere
- Bayes in the sky: Bayesian inference and model selection in cosmology
- batman: BAsic Transit Model cAlculatioN in Python
- A continuum from clear to cloudy hot-Jupiter exoplanets without primordial water depletion
- Achieving better than 1 minute accuracy in the Heliocentric and Barycentric Julian Dates
- Homogeneous studies of transiting extrasolar planets. IV. Thirty systems with space-based light curves
- C/O ratio as a Dimension for Characterizing Exoplanetary Atmospheres
- Exoplanetary Atmospheres: Key Insights, Challenges and Prospects
- How to Distinguish between Cloudy Mini-Neptunes and Water/Volatile-Dominated Super-Earths
- A Gaussian process framework for modelling instrumental systematics: application to transmission spectroscopy
- HD 209458b in New Light: Evidence of Nitrogen Chemistry, Patchy Clouds and Sub-Solar Water
- Towards Chemical Constraints on Hot Jupiter Migration
- Limb darkening and exoplanets: testing stellar model atmospheres and identifying biases in transit parameters
- Equilibrium chemistry down to 100 K - Impact of silicates and phyllosilicates on carbon/oxygen ratio
- HAT-P-1b: A Large-Radius, Low-Density Exoplanet Transiting one Member of a Stellar Binary
- Mass-Metallicity Trends in Transiting Exoplanets from Atmospheric Abundances of HO, Na, and K
- HO abundances and cloud properties in ten hot giant exoplanets
- HST hot Jupiter Transmission Spectral Survey: A detection of Na and strong optical absorption in HAT-P-1b
- A consistent retrieval analysis of 10 Hot Jupiters observed in transmission
- An absolute sodium abundance for a cloud-free 'hot Saturn' exoplanet
- Gran Telescopio Canarias OSIRIS Transiting Exoplanet Atmospheric Survey: Detection of potassium in XO-2b from narrowband spectrophotometry
- Hubble Space Telescope hot Jupiter Transmission Spectral Survey: detection of water in HAT-P-1b from Wide Field Camera 3 near-infrared spatial scan observations
- Forward modelling and retrievals with PLATON, a fast open source tool
- Uniform Atmospheric Retrieval Analysis of Ultracool Dwarfs II: Properties of 11 T-dwarfs
- Exo-Transmit: An Open-Source Code for Calculating Transmission Spectra for Exoplanet Atmospheres of Varied Composition
- The Transit Light Curve Project. VII. The Not-So-Bloated Exoplanet HAT-P-1b
- Ground-based near-UV observations of 15 transiting exoplanets: Constraints on their atmospheres and no evidence for asymmetrical transits
- PLATON II: New Capabilities And A Comprehensive Retrieval on HD 189733b Transit and Eclipse Data
- A New Window into Planet Formation and Migration: Refractory-to-Volatile Elemental Ratios in Ultra-hot Jupiters
- The GTC exoplanet transit spectroscopy survey IX. Detection of Haze, Na, K, and Li in the super-Neptune WASP-127b
- On degeneracies in retrievals of exoplanetary transmission spectra
- Five key exoplanet questions answered via the analysis of 25 hot Jupiter atmospheres in eclipse
- A high precision chemical abundance analysis of the HAT-P-1 stellar binary: constraints on planet formation
- Measurement of the Spin-Orbit Angle of Exoplanet HAT-P-1b
- Spitzer IRAC Secondary Eclipse Photometry of the Transiting Extrasolar Planet HAT-P-1b
- Wind of Change: retrieving exoplanet atmospheric winds from high-resolution spectroscopy
- Into the Storm: Diving into the winds of the ultra hot Jupiter WASP-76 b with HARPS and ESPRESSO
- The GTC exoplanet transit spectroscopy survey. VII. Detection of sodium in WASP-52b's cloudy atmosphere
- A Model of the H and Na Transmission Spectrum of HD 189733b
- High-resolution transmission spectroscopy study of ultra-hot Jupiters HAT-P-57b, KELT-17b, KELT-21b, KELT-7b, MASCARA-1b, and WASP-189b
- The GTC exoplanet transit spectroscopy survey. VI. A spectrally-resolved Rayleigh scattering slope in GJ 3470b
- GTC OSIRIS transiting exoplanet atmospheric survey: detection of potassium in HAT-P-1b from narrowband spectrophotometry
- The GROUSE project II: Detection of the Ks-band secondary eclipse of exoplanet HAT-P-1b
- Further constraints on the optical transmission spectrum of HAT-P-1b
- LRG-BEASTS: sodium absorption and Rayleigh scattering in the atmosphere of WASP-94A b using NTT/EFOSC2
- Detection of Na in WASP-21b's lower and upper atmosphere
- Solar-to-supersolar sodium and oxygen absolute abundances for a "hot Saturn" orbiting a metal-rich star
- Evidence of a Clear Atmosphere for WASP-62b: the Only Known Transiting Gas Giant in the JWST Continuous Viewing Zone
- An enhanced slope in the transmission spectrum of the hot Jupiter WASP-104b
- Evidence for TiO in the atmosphere of the hot Jupiter HAT-P-65 b
- A large range of haziness conditions in hot-Jupiter atmospheres
- Ground-based Spectroscopy of the Exoplanet XO-2b using a Systematic Wavelength Calibration
- Revealing the Vertical Cloud Structure of a young low-mass Brown Dwarf, an analog to the beta-Pictoris b directly-imaged exoplanet, through Keck I/MOSFIRE spectro-photometric variability
- Characterizing The Cloud Decks of Luhman 16AB with Medium-Resolution Spectroscopic Monitoring
- Benchmark tests of transmission spectroscopy using transiting white dwarfs
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