Transmission spectroscopy of MASCARA-1b with ESPRESSO: Challenges of overlapping orbital and Doppler tracks

Abstract

Atmospheric studies at high spectral resolution have shown the presence of molecules, neutral and ionised metals, and hydrogen in the transmission spectrum of ultra-hot Jupiters, and have started to probe the dynamics of their atmospheres. We analyse the transmission spectrum of MASCARA-1b, one of the densest ultra-hot Jupiters orbiting a bright (V=8.3) star. We focus on the CaII H&K, NaI, LiI, H$\alpha$, and KI D1 spectral lines and on the cross-correlated FeI, FeII, CaI, YI, VI, VII, CaH, and TiO lines. For those species that are not present in the stellar spectrum, no detections are reported, but we measure upper limits with an excellent precision ($\sim 10$ ppm for particular species). For those species that are present in the stellar spectrum and whose planet-occulted spectral lines induce spurious features in the planetary transmission spectrum, an accurate modelling of the Rossiter-McLaughlin effect (RM) and centre-to-limb variations (CLV) is necessary to recover possible atmospheric signals. In the case of MASCARA-1b, this is difficult due to the overlap between the radial velocities of the stellar surface regions occulted by MASCARA-1b and the orbital track along which the planet atmospheric signal is expected to be found. To try to disentangle a possible planetary signal, we compare our results with models of the RM and CLV effects, and estimate the uncertainties of our models depending on the different system parameters. Unfortunately, more precise measurements of the spin-orbit angle are necessary to better constrain the planet-occulted track and correct for the transit effects in the transmission spectrum with enough precision to be able to detect or discard possible planetary absorptions. Finally, we discuss the possibility that non-detections are related to the low absorption expected for a high surface gravity planet such as MASCARA-1b.

arXiv commentAccepted

References in corpus (57)

• A grid of MARCS model atmospheres for late-type stars I. Methods and general properties
• petitRADTRANS: a Python radiative transfer package for exoplanet characterization and retrieval
• Homogeneous studies of transiting extrasolar planets. IV. Thirty systems with space-based light curves
• The ExoMol database: molecular line lists for exoplanet and other hot atmospheres
• ESPRESSO@VLT -- On-sky performance and first results
• Spectroscopy Made Easy: Evolution
• From thermal dissociation to condensation in the atmospheres of ultra hot Jupiters: WASP-121b in context
• Spectrally resolved detection of sodium in the atmosphere of HD189733b with the HARPS spectrograph
• Nightside condensation of iron in an ultra-hot giant exoplanet
• H- Opacity and Water Dissociation in the Dayside Atmosphere of the Very Hot Gas Giant WASP-18 b
• The CHEOPS mission
• ExoMol Molecular linelists -- XXXIII. The spectrum of Titanium Oxide
• Retrieving Temperatures and Abundances of Exoplanet Atmospheres with High-Resolution Cross-Correlation Spectroscopy
• Atomic iron and titanium in the atmosphere of the exoplanet KELT-9b
• Rotation and winds of exoplanet HD 189733 b measured with high-dispersion transmission spectroscopy
• PyTransit: Fast and Easy Exoplanet Transit Modelling in Python
• A spectral survey of an ultra-hot Jupiter: Detection of metals in the transmission spectrum of KELT-9 b
• An extended hydrogen envelope of the extremely hot giant exoplanet KELT-9b
• Atmospheric characterization of the ultra-hot Jupiter MASCARA-2b/KELT-20b
• Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) IV. A spectral inventory of atoms and molecules in the high-resolution transmission spectrum of WASP-121 b
• Transit Lightcurves of Extrasolar Planets Orbiting Rapidly-Rotating Stars
• Atmospheric Rossiter-McLaughlin effect and transmission spectroscopy of WASP-121b with ESPRESSO
• Neutral Iron Emission Lines From The Day-side Of KELT-9b -- The GAPS Programme With HARPS-N At TNG XX
• A candidate short-period sub-Earth orbiting Proxima Centauri
• Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) - II. A broadened sodium feature on the ultra-hot giant WASP-76b
• Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) III. Atmospheric structure of the misaligned ultra-hot Jupiter WASP-121b
• Ionized calcium in the atmospheres of two ultra-hot exoplanets WASP-33b and KELT-9b
• Titanium oxide and chemical inhomogeneity in the atmosphere of the exoplanet WASP-189b
• ESPRESSO high resolution transmission spectroscopy of WASP-76b
• Decomposing the Iron Cross-Correlation Signal of the Ultra-Hot Jupiter WASP-76b in Transmission using 3D Monte-Carlo Radiative Transfer
• An Atomic Spectral Survey of WASP-76b: Resolving Chemical Gradients and Asymmetries
• Na I and H$\alpha$ absorption features in the atmosphere of MASCARA-2b/KELT-20b
• Search for water vapor in the high-resolution transmission spectrum of HD189733b in the visible
• Non-detection of TiO and VO in the atmosphere of WASP-121b using high-resolution spectroscopy
• The effect of the stellar absorption line centre-to-limb variation on exoplanet transmission spectrum observations
• Detection of Na, K, and H$\alpha$ absorption in the atmosphere of WASP-52b using ESPRESSO
• The atmosphere of HD 209458b seen with ESPRESSO. No detectable planetary absorptions at high resolution
• Confirmation of Asymmetric Iron Absorption in WASP-76b with HARPS
• A temperature inversion with atomic iron in the ultra-hot dayside atmosphere of WASP-189b
• ARES II: Characterising the Hot Jupiters WASP-127 b, WASP-79 b and WASP-62 b with HST
• Detection of Fe and evidence for TiO in the dayside emission spectrum of WASP-33b
• Detection of Fe I and Fe II in the atmosphere of MASCARA-2b using a cross-correlation method
• No umbrella needed: Confronting the hypothesis of iron rain on WASP-76b with post-processed general circulation models
• Detection of Fe\,{\sc i} Emission in the Day-side Spectrum of WASP-33b
• A Comprehensive Reanalysis of $\text{Spitzer}$'s 4.5 $\mu$m Phase Curves, and the Phase Variations of the Ultra-hot Jupiters MASCARA-1b and KELT-16b
• WASP-127b: A misaligned planet with a partly cloudy atmosphere and tenuous sodium signature seen by ESPRESSO
• High-resolution transmission spectroscopy study of ultra-hot Jupiters HAT-P-57b, KELT-17b, KELT-21b, KELT-7b, MASCARA-1b, and WASP-189b
• MASCARA-1 b: A hot Jupiter transiting a bright $m_V=8.3$ A-star in a misaligned orbit
• Spi-OPS: Spitzer and CHEOPS confirm the near-polar orbit of MASCARA-1 b and reveal a hint of dayside reflection
• High-resolution detection of neutral oxygen and non-LTE effects in the atmosphere of KELT-9b
• A Search for FeH in Hot-Jupiter Atmospheres with High-Dispersion Spectroscopy
• Planet and star synergy at high spectral resolution. A rationale for the characterisation of exoplanet atmospheres. I. The Infrared
• Broadband transmission spectroscopy of HD209458b with ESPRESSO: Evidence for Na, TiO, or both
• Evidence for chromium hydride in the atmosphere of Hot Jupiter WASP-31b
• Chromatic line-profile tomography to reveal exoplanetary atmospheres: application to HD 189733b
• Retrieving the transmission spectrum of HD 209458b using CHOCOLATE: A new chromatic Doppler tomography technique
• CARMENES detection of the CaII infrared triplet and possible evidence of HeI in the atmosphere of WASP-76b

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• Time-resolved transmission spectroscopy of the ultra-hot Jupiter WASP-189 b
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• High-resolution emission spectroscopy retrievals of MASCARA-1b with CRIRES+: Strong detections of CO, H${}_2$O and Fe emission lines and a C$/$O consistent with solar
• Transmission spectroscopy of the lowest-density gas giant: metals and a potential extended outflow in HAT-P-67b
• Combined analysis of stellar and planetary absorption lines via global forward-transit simulations
• The PEPSI Exoplanet Transit Survey. III: The detection of FeI, CrI and TiI in the atmosphere of MASCARA-1 b through high-resolution emission spectroscopy
• Detection of rubidium and samarium in the atmosphere of the ultra-hot Jupiter MASCARA-4b
• Hydride ion continuum hides absorption signatures in the NIRPS near-infrared transmission spectrum of the ultra-hot gas giant WASP-189b
• TOI-2005b: An Eccentric Warm Jupiter in Spin-Orbit Alignment
• PEPSI Investigation, Retrieval, and Atlas of Numerous Giant Atmospheres (PIRANGA). III. Composition and winds in the atmosphere of TOI-1518 b
• The GAPS programme at TNG -- LXIII. Photo-evaporating puzzle: Exploring the enigmatic nature of TOI-5398 b atmospheric signal
• Atmospheric composition of WASP-85Ab with ESPRESSO/VLT observations
• Revisiting the atmosphere of HAT-P-70b with CARMENES high-resolution transmission spectroscopy
• Assessing robustness and bias in 1D retrievals of 3D Global Circulation Models at high spectral resolution: a WASP-76 b simulation case study in emission
• First Results from WINERED: Detection of Emission Lines from Neutral Iron and a Combined Set of Trace Species on the Dayside of WASP-189 b
• Low-resolution Transit Spectroscopy of Three Hot Jupiters Using the 2m Himalayan Chandra Telescope