Dr. Christina Carina Thöne Profile

Dr. Christina Carina Thöne

Affiliated Scientist at ASU-CAS

SPIE Involvement:

Author

Publications (9)

Proceedings Article | 31 August 2022 Presentation + Paper

Quick Ultra-VIolet Kilonova surveyor (QUVIK)

N. Werner, J. Řípa, F. Münz, F. Hroch, M. Jelínek, J. Krtička, M. Zajaček, M. Topinka, V. Dániel, J. Gromeš, J. Václavík, L. Steiger, V. Lédl, J. Seginak, J. Benáček, J. Budaj, N. Faltová, R. Gális, D. Jadlovský, J. Janík, M. Kajan, V. Karas, D. Korčáková, M. Kosiba, I. Krtičková, J. Kubát, B. Kubátová, P. Kurfürst, M. Labaj, Z. Mikulášek, A. Pál, E. Paunzen, M. Piecka, M. Prišegen, T. Ramezani, M. Skarka, G. Szász, C. Thöne, M. Zejda

Proceedings Volume 12181, 121810B (2022) https://doi.org/10.1117/12.2629531

KEYWORDS: Ultraviolet radiation, Stars, Near ultraviolet, Satellites, Astronomy, Space telescopes

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Proceedings Article | 29 August 2022 Presentation + Paper

EIFIS: a modular extreme integral field spectrograph for the 10.4m GTC

Christina Thöne, Antonio de Ugarte Postigo, Marisa García Vargas, José Feliciano Agüí Fernández, Ana Pérez Calpena, Ernesto Sánchez Blanco, Manuel Maldonado

Proceedings Volume 12184, 121840H (2022) https://doi.org/10.1117/12.2629376

KEYWORDS: Spectrographs, Cameras, Sensors, Telescopes, Spectral resolution, Optical design, Reflectivity, Stars, Mirrors, Galactic astronomy

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Proceedings Article | 13 December 2020 Presentation + Paper

GRBSpec and GRBPhot: social networks to share gamma ray burst data

Martin Blažek, A. de Ugarte Postigo, D. Kann, C. C. Thöne, J. Agüı́ Fernández, L. Izzo

Proceedings Volume 11452, 1145218 (2020) https://doi.org/10.1117/12.2562420

KEYWORDS: Gamma radiation, Social networks, Geometrical optics, Databases, High energy astrophysics, Explosives, Aerospace engineering, Satellites, X-ray telescopes, Large telescopes

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Proceedings Article | 13 December 2020 Poster + Paper

GATOS: A fast multi-channel imager and spectrograph for the Gran Telescopio Canarias

A. de Ugarte Postigo, C. Thöne, T. Muñoz-Darias, A. Labiano, A. Gil de Paz, M. L. García Vargas, V. Dhillon, L. Izzo, D. A. Kann, A. Pérez, J. Piqueras López, J. F. Agüí Fernández, A. Alonso Herrero, D. Barrado, M. Blazek, J. Casares, M. Fernández, J. García Rojas, A. Gardini, R. Garrido, R. González Delgado, N. Huélamo, N. Lodieu, M. Maldonado, J. L. Ortiz, C. Ramos Almeida, E. Sánchez Blanco, Sergio Simón-Díaz, A. M. Watson

Proceedings Volume 11447, 114476Z (2020) https://doi.org/10.1117/12.2561588

KEYWORDS: Near infrared, Sensors, Imaging spectroscopy, Spectrographs, Spectral resolution, Imaging systems, Spectroscopes, Quantum efficiency, Modulators, Stars

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Proceedings Article | 10 July 2018 Paper

The advanced image slicers of OCTOCAM

Robert Content, Antonio de Ugarte Postigo, Christina Thöne, Andrew Sheinis

Proceedings Volume 10706, 107066L (2018) https://doi.org/10.1117/12.2314424

KEYWORDS: Mirrors, Spectrographs, Near infrared, Adaptive optics, Telescopes, Gemini Observatory, Sensors, Cameras

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OCTOCAM is the new large Gemini instrument in building. It is an imaging spectrograph with 8 cameras covering the range 370 nm to 2350 nm at a typical resolution of 3000-4000. It will have 2 IFUs, one for normal operation over all wavelengths, the other for AO in the NIR only and with a smaller field but a higher spectral resolution. Currently, no IFU exists that covers the entire range of VIS and NIR in a single observation. Such an IFU would have a number of applications: It can be used for resolved studies of HII regions over a broad wavelength range and emission line galaxies over a broad redshift range using the same set of emission lines. Another application is to observe transients with only arcseconds localization very early without waiting for a sub-arcsecond position, hence allowing to obtain very valuable early data. For bright transients such as SNe and GRBs we can study the immediate environment in detail, and even use the actual transient as AO tip-tilt star to study the environment at high spectral and very high angular resolutions. The IFUs will be Advanced Image Slicers, a proven concept now in use in many instruments around the world including Gemini NIFS, VLT MUSE and KMOS, and JWST NIRSpec. The normal operation slicer will have a field of 9.7" x 6.8" with 17 slices 0.4" wide giving 0.18" x 0.4" spaxels. The slices are smaller than the standard slit size of 0.54" (3 pixels) so will deliver higher spectral resolution. This IFU will deliver much higher performances than the GMOS IFU and NIFS with a larger field of view and spectral range but also considerably fewer pixels per arsec² then reducing the readout noise. With its wavelength range starting at 370 nm, diamond machining cannot be used. A glass slicer system will have to be used as in MUSE. The wavelength range will however be much larger covering the whole VIS and NIR range. Modern reflection coatings as UV enhanced silver can be used but a trade-off may be better by starting at a longer wavelength to get higher transmission. Special consideration is necessary for the fore-optics which cannot be diamond machined and for the overall design due to the limited space envelope. The AO slicer will have a field of 2.5" x 3.6" with 31 slices 0.08" wide imaged on 2 pixels in the spectral direction to get proper sampling. The fore-optics will magnify the beam in both directions but with different magnifications to get spaxels of 0.08" x 0.08". The smaller slice image width will give a spectral resolution of about 5000 including aberrations, about the same than NIFS but covering all 4 NIR bands at once. This slicer uses a slit 60% longer than OCTOCAM is designed for. It is possible because the magnification reduces the beam size so the aberrations and vignetting.

Proceedings Article | 9 July 2018 Presentation

The OCTOCAM instrument concept at Gemini and beyond (Conference Presentation)

Antonio de Ugarte Postigo, Christina Thöne

Proceedings Volume 10702, 107020G (2018) https://doi.org/10.1117/12.2309465

KEYWORDS: Telescopes, Astronomy, Astronomical telescopes, Gemini Observatory, Large Synoptic Survey Telescope, Imaging systems, Spectrographs, Imaging spectroscopy, Spectroscopes, Image resolution

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Proceedings Article | 9 August 2016 Paper

Science with OCTOCAM: a new workhorse instrument proposed for Gemini

Christina Thöne, Antonio de Ugarte Postigo, Alexander van der Horst, Pete Roming

Proceedings Volume 9908, 990843 (2016) https://doi.org/10.1117/12.2232026

KEYWORDS: Imaging spectroscopy, Gemini Observatory, Spectroscopes, Stars, Electroluminescent displays, X-rays, Planets, X-ray optics, Large Synoptic Survey Telescope, Exoplanets

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Proceedings Article | 9 August 2016 Paper

OCTOCAM: a fast multi-channel imager and spectrograph proposed for the Gemini Observatory

A. de Ugarte Postigo, P. Roming, C. Thöne, A. van der Horst, S. Pope, M. L. García Vargas, E. Sánchez-Blanco, M. Maldonado Medina, R. Content, F. Snik, R. Killough, G. Winters, K. Persson, S. Jeffers, A. Riva, A. Bianco, A. Zanutta

Proceedings Volume 9908, 990840 (2016) https://doi.org/10.1117/12.2231862

KEYWORDS: Imaging systems, Spectrographs, Gemini Observatory, Spectroscopes, Sensors, Imaging spectroscopy, Telescopes, Near infrared, James Webb Space Telescope, Space telescopes

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Proceedings Article | 18 July 2014 Paper

GRBSpec: a multi-observatory database for gamma-ray burst spectroscopy

Antonio de Ugarte Postigo, Martin Blazek, Petr Janout, Pierre Sprimont, Christina Thöne, Javier Gorosabel, Rubén Sánchez-Ramírez

Proceedings Volume 9152, 91520B (2014) https://doi.org/10.1117/12.2055774

KEYWORDS: Databases, Stars, Gamma radiation, Spectroscopy, Visualization, Calibration, Observatories, Absorption, Satellites, Advanced distributed simulations

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Showing 5 of 9 publications

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