Poster Previews for Conference 9904: Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave

MacEwen, Howard A.; Fazio, G. G.; Lystrup, Makenzie

doi:10.1117/12.2248377

Cited by 10 publications

(12 citation statements)

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“…Euclid's Visible instrument (Cropper et al 2016) (VIS) has a mosaic of 36 Charge Coupled Devices (CCDs), each with 4,096

\times

4,096 pixels, for a total of approximately 604 million pixels (Figure 13). The CCDs were produced by Teledyne e2v Space Imaging in Chelmsford, England.…”

Section: Euclid Dark Universe Missionmentioning

confidence: 99%

Teledyne imaging sensors' recent contributions to astronomy, earth science, and planetary science

Beletic,

Auyeung,

Pan

et al. 2023

Astron Nachr

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Teledyne Imaging Sensors (TIS) is the leading supplier of infrared focal plane arrays (FPAs) to astronomy and TIS plays a strong role in providing image sensors for Earth and Planetary Science. This article starts with a brief introduction to TIS' technologies and image sensor products. We then present some of TIS' deliveries to space missions and ground‐based telescopes. The space missions include ESA's Euclid Dark Universe mission and several NASA missions (James Webb Space Telescope, Roman Space Telescope, SPHEREx, EMIT). TIS continues to serve ground‐based astronomy by providing the H2RG and the world's largest high‐performance infrared astronomy FPA, the H4RG‐15, to several ground‐based observatories. Active programs will be described. Ongoing work includes NASA's NEO Surveyor asteroid surveillance mission, ESA's Ariel exo‐planet spectroscopy mission, and deliveries to the European Southern Observatory's Extremely Large Telescope.

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“…Euclid's Visible instrument (Cropper et al 2016) (VIS) has a mosaic of 36 Charge Coupled Devices (CCDs), each with 4,096

\times

4,096 pixels, for a total of approximately 604 million pixels (Figure 13). The CCDs were produced by Teledyne e2v Space Imaging in Chelmsford, England.…”

Section: Euclid Dark Universe Missionmentioning

confidence: 99%

Teledyne imaging sensors' recent contributions to astronomy, earth science, and planetary science

Beletic,

Auyeung,

Pan

et al. 2023

Astron Nachr

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“…JWST has observed three hot gas giant planets (WASP-18b, WASP-39b, and WASP-43b) as part of the Early Release Science (ERS) programme (Bean et al 2018) across its broad wavelength range capabilities in an effort to assess the chemical inventory of these atmospheres in detail. In conjunction, during JWST's lifetime, the near-future ARIEL mission (Tinetti et al 2016;Charnay et al 2021;Tinetti et al 2021) will characterise hundreds to thousands of exoplanet atmospheres during its operational lifetime and enable statistical studies of the exoplanet population.…”

Section: Introductionmentioning

confidence: 99%

A mini-chemical scheme with net reactions for 3D general circulation models

Lee

Tsai

Hammond

et al. 2023

A&A

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Context. The chemical inventory of hot Jupiter (HJ) exoplanet atmospheres continues to be observed by various ground-and spacebased instruments in increasing detail and precision. It is expected for some HJs to exhibit strong non-equilibrium chemistry characteristics in their atmospheres, which might be inferred from spectral observations. Aims. We aim to model the 3D thermochemical non-equilibrium chemistry in the atmospheres of the HJs WASP-39b and HD 189733b. Methods. We coupled a lightweight, reduced chemical network 'mini-chem' that utilises net reaction rate tables to the Exo-FMS general circulation model (GCM). We performed GCM models of the exoplanets WASP-39b and HD 189733b as case studies of the coupled mini-chem scheme. The GCM results were then post-processed using the 3D radiative-transfer model gCMCRT to produce transmission and emission spectra to assess the impact of non-equilibrium chemistry on their observable properties. Results. Both simulations show significant departures from chemical equilibrium (CE) due to the dynamical motions of the atmosphere. The spacial distribution of species generally closely follows the dynamical features of the atmosphere rather than the temperature field. Each molecular species exhibits a different quench level in the simulations, which is also dependent on the latitude of the planet. Major differences are seen in the transmission and emission spectral features between the CE and kinetic models. Conclusions. Our simulations indicate that considering the 3D kinetic chemical structures of HJ atmospheres has an important impact on the physical interpretation of observational data. Drawing bulk atmospheric parameters from fitting feature strengths may lead to an inaccurate interpretation of chemical conditions in the atmosphere of HJs. Our open source mini-chem module is simple to couple with contemporary HJ GCM models without substantially increasing required computational resources.

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“…JWST has observed three hot gas giant planets (WASP-18b, WASP-39b and WASP-43b) as part of the Early Release Science (ERS) program (Bean et al 2018) across its broad wavelength range capabilities in an effort to assess in detail the chemical inventory of these atmospheres. In conjunction during JWST's lifetime, the near-future ARIEL mission (Tinetti et al 2016;Charnay et al 2021;Tinetti et al 2021) will characterise 100s to 1000s of exoplanet atmospheres during its operational lifetime and enable statistical studies of the exoplanet population.…”

Section: Introductionmentioning

confidence: 99%

A Mini-Chemical Scheme with Net Reactions for 3D GCMs II. 3D thermochemical modelling of WASP-39b and HD 189733b

Lee¹,

Tsai²,

Hammond³

et al. 2023

Preprint

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Context. The chemical inventory of hot Jupiter (HJ) exoplanets atmospheres continue to be observed by various ground and space based instruments in increasing detail and precision. It is expected that some HJs will exhibit strong non-equilibrium chemistry characteristics in their atmospheres, which might be inferred from spectral observations. Aims. We aim to model the three dimensional thermochemical non-equilibrium chemistry in the atmospheres of the HJs WASP-39b and HD 189733b. Methods. We couple a lightweight, reduced chemical network 'mini-chem' that utilises net reaction rate tables to the Exo-FMS General Circulation Model (GCM). We perform GCM models of the exoplanets WASP-39b and HD 189733b as case studies of the coupled mini-chem scheme. The GCM results are then post-processed using the 3D radiative-transfer model gCMCRT to produce transmission and emission spectra to assess the impact of non-equilibrium chemistry on their observable properties. Results. Both simulations show significant departures from chemical equilibrium (CE) due to the dynamical motions of the atmosphere. The spacial distribution of species generally follows closely the dynamical features of the atmosphere rather than the temperature field. Each molecular species exhibits a different quench level in the simulations, also dependent on the latitude of the planet. Major differences are seen in the transmission and emission spectral features between the CE and kinetic models. Conclusions. Our simulations indicate that considering the 3D kinetic chemical structures of HJ atmospheres has an important impact on physical interpretation of observational data. Drawing bulk atmospheric parameters from fitting feature strengths may lead to inaccurate interpretation of chemical conditions in the atmosphere of HJs. Our open source mini-chem module is simple to couple with contemporary HJ GCM models without substantially increasing required computational resources.

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Poster Previews for Conference 9904: Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave

Cited by 10 publications

References 0 publications

Teledyne imaging sensors' recent contributions to astronomy, earth science, and planetary science

Teledyne imaging sensors' recent contributions to astronomy, earth science, and planetary science

A mini-chemical scheme with net reactions for 3D general circulation models

A Mini-Chemical Scheme with Net Reactions for 3D GCMs II. 3D thermochemical modelling of WASP-39b and HD 189733b

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