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Your search keyword '"Böker, T."' showing total 3 results
Start Over Author "Böker, T." Topic astrophysics - instrumentation and methods for astrophysics
3 results on '"Böker, T."'

1. In-orbit Performance of the Near-infrared Spectrograph NIRSpec on the James Webb Space Telescope

Author

T. Böker, T. L. Beck, S. M. Birkmann, G. Giardino, C. Keyes, N. Kumari, J. Muzerolle, T. Rawle, P. Zeidler, Y. Abul-Huda, C. Alves de Oliveira, S. Arribas, K. Bechtold, R. Bhatawdekar, N. Bonaventura, A. J. Bunker, A. J. Cameron, S. Carniani, S. Charlot, M. Curti, N. Espinoza, P. Ferruit, M. Franx, P. Jakobsen, D. Karakla, M. López-Caniego, N. Lützgendorf, R. Maiolino, E. Manjavacas, A. P. Marston, S. H. Moseley, P. Ogle, M. Perna, M. Peña-Guerrero, N. Pirzkal, R. Plesha, C. R. Proffitt, B. J. Rauscher, H.-W. Rix, B. Rodríguez del Pino, Z. Rustamkulov, E. Sabbi, D. K. Sing, M. Sirianni, M. te Plate, L. Úbeda, G. M. Wahlgren, E. Wislowski, R. Wu, Chris J. Willott, Böker, T., Beck, T. L., Birkmann, S. M., Giardino, G., Keyes, C., Kumari, N., Muzerolle, J., Rawle, T., Zeidler, P., Abul-Huda, Y., de Oliveira, C. A., Arribas, S., Bechtold, K., Bhatawdekar, R., Bonaventura, N., Bunker, A. J., Cameron, A. J., Carniani, S., Charlot, S., Curti, M., Espinoza, N., Ferruit, P., Franx, M., Jakobsen, P., Karakla, D., López-Caniego, M., Lützgendorf, N., Maiolino, R., Manjavacas, E., Marston, A. P., Moseley, S. H., Ogle, P., Perna, M., Peña-Guerrero, M., Pirzkal, N., Plesha, R., Proffitt, C. R., Rauscher, B. J., Rix, H. W., del Pino, B. R., Rustamkulov, Z., Sabbi, E., Sing, D. K., Sirianni, M., Plate, M. t., Úbeda, L., Wahlgren, G. M., Wislowski, E., Wu, R., Willott, C. J., Böker, T [0000-0002-5666-7782], Beck, TL [0000-0002-6881-0574], Birkmann, SM [0000-0001-7058-1726], Giardino, G [0000-0002-9262-7155], Keyes, C [0000-0002-4834-369X], Kumari, N [0000-0002-5320-2568], Rawle, T [0000-0002-7028-5588], Zeidler, P [0000-0002-6091-7924], de Oliveira, CA [0000-0003-2896-4138], Arribas, S [0000-0001-7997-1640], Bechtold, K [0000-0002-7722-6900], Bhatawdekar, R [0000-0003-0883-2226], Bonaventura, N [0000-0001-8470-7094], Cameron, AJ [0000-0002-0450-7306], Carniani, S [0000-0002-6719-380X], Charlot, S [0000-0003-3458-2275], Curti, M [0000-0002-2678-2560], Espinoza, N [0000-0001-9513-1449], Ferruit, P [0000-0001-8895-0606], Jakobsen, P [0000-0002-6780-2441], López-Caniego, M [0000-0003-1016-9283], Lützgendorf, N [0000-0002-4034-0080], Maiolino, R [0000-0002-4985-3819], Manjavacas, E [0000-0003-0192-6887], Marston, AP [0000-0001-5788-5258], Ogle, P [0000-0002-3471-981X], Perna, M [0000-0002-0362-5941], Peña-Guerrero, M [0000-0003-2314-3453], Plesha, R [0000-0002-2509-3878], Proffitt, CR [0000-0001-7617-5665], Rauscher, BJ [0000-0003-2662-6821], del Pino, BR [0000-0001-5171-3930], Sabbi, E [0000-0003-2954-7643], Sing, DK [0000-0001-6050-7645], Sirianni, M [0000-0002-7626-6361], Úbeda, L [0000-0001-7130-2880], Wahlgren, GM [0000-0002-6570-4776], Willott, CJ [0000-0002-4201-7367], and Apollo - University of Cambridge Repository

Subjects
Spectrometers (1554), Settore FIS/05 - Astronomia e Astrofisica, Space and Planetary Science, DETECTORS, FOS: Physical sciences, Spectroscopy (1558), Space telescopes (1547), Astronomy and Astrophysics, 5109 Space Sciences, Space vehicle instruments (1548) [Unified Astronomy Thesaurus concepts], Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), 51 Physical Sciences
Abstract

The Near-Infrared Spectrograph (NIRSpec) is one of the four focal plane instruments on the James Webb Space Telescope. In this paper, we summarize the in-orbit performance of NIRSpec, as derived from data collected during its commissioning campaign and the first few months of nominal science operations. More specifically, we discuss the performance of some critical hardware components such as the two NIRSpec Hawaii-2RG (H2RG) detectors, wheel mechanisms, and the micro-shutter array. We also summarize the accuracy of the two target acquisition procedures used to accurately place science targets into the slit apertures, discuss the current status of the spectro-photometric and wavelength calibration of NIRSpec spectra, and provide the as measured sensitivity in all NIRSpec science modes. Finally, we point out a few important considerations for the preparation of NIRSpec science programs., accepted by PASP for special issue on JWST in-orbit performance

Published
2023

2. The Near-Infrared Spectrograph (NIRSpec) on the James Webb Space Telescope III. Integral-field spectroscopy

Author

T. Böker, S. Arribas, N. Lützgendorf, C. Alves de Oliveira, T. L. Beck, S. Birkmann, A. J. Bunker, S. Charlot, G. de Marchi, P. Ferruit, G. Giardino, P. Jakobsen, N. Kumari, M. López-Caniego, R. Maiolino, E. Manjavacas, A. Marston, S. H. Moseley, J. Muzerolle, P. Ogle, N. Pirzkal, B. Rauscher, T. Rawle, H.-W. Rix, E. Sabbi, B. Sargent, M. Sirianni, M. te Plate, J. Valenti, C. J. Willott, P. Zeidler, Böker, T [0000-0002-5666-7782], Arribas, S [0000-0001-7997-1640], Lützgendorf, N [0000-0001-6126-5238], Alves De Oliveira, C [0000-0003-2896-4138], Birkmann, S [0000-0001-7058-1726], Charlot, S [0000-0003-3458-2275], De Marchi, G [0000-0001-7906-3829], Giardino, G [0000-0002-9262-7155], and Apollo - University of Cambridge Repository

Subjects
Space and Planetary Science, techniques: imaging spectroscopy, FOS: Physical sciences, Astronomy and Astrophysics, space vehicles: instruments, methods: observational, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), instrumentation: spectrographs
Abstract

The Near-Infrared Spectrograph (NIRSpec) on the James Webb Space Telescope (JWST) offers the first opportunity to use integral-field spectroscopy from space at near-infrared wavelengths. More specifically, NIRSpec's integral-field unit can obtain spectra covering the wavelength range $0.6 - 5.3~\mu$m for a contiguous 3.1 arcsec $\times$ 3.2 arcsec sky area at spectral resolutions of $R \approx 100$, 1000, and 2700. In this paper we describe the optical and mechanical design of the NIRSpec integral-field spectroscopy mode, together with its expected performance. We also discuss a few recommended observing strategies, some of which are driven by the fact that NIRSpec is a multipurpose instrument with a number of different observing modes, which are discussed in companion papers. We briefly discuss the data processing steps required to produce wavelength- and flux-calibrated data cubes that contain the spatial and spectral information. Lastly, we mention a few scientific topics that are bound to benefit from this highly innovative capability offered by JWST/NIRSpec., Comment: Accepted for publication in A&A. 13 pages, 14 figures

Published
2022
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3. The Near-Infrared Spectrograph (NIRSpec) on the James Webb Space Telescope - I. Overview of the instrument and its capabilities

Author

P. Jakobsen, P. Ferruit, C. Alves de Oliveira, S. Arribas, G. Bagnasco, R. Barho, T. L. Beck, S. Birkmann, T. Böker, A. J. Bunker, S. Charlot, P. de Jong, G. de Marchi, R. Ehrenwinkler, M. Falcolini, R. Fels, M. Franx, D. Franz, M. Funke, G. Giardino, X. Gnata, W. Holota, K. Honnen, P. L. Jensen, M. Jentsch, T. Johnson, D. Jollet, H. Karl, G. Kling, J. Köhler, M.-G. Kolm, N. Kumari, M. E. Lander, R. Lemke, M. López-Caniego, N. Lützgendorf, R. Maiolino, E. Manjavacas, A. Marston, M. Maschmann, R. Maurer, B. Messerschmidt, S. H. Moseley, P. Mosner, D. B. Mott, J. Muzerolle, N. Pirzkal, J.-F. Pittet, A. Plitzke, W. Posselt, B. Rapp, B. J. Rauscher, T. Rawle, H.-W. Rix, A. Rödel, P. Rumler, E. Sabbi, J.-C. Salvignol, T. Schmid, M. Sirianni, C. Smith, P. Strada, M. te Plate, J. Valenti, T. Wettemann, T. Wiehe, M. Wiesmayer, C. J. Willott, R. Wright, P. Zeidler, C. Zincke, Jakobsen, P [0000-0002-6780-2441], Ferruit, P [0000-0001-8895-0606], Alves De Oliveira, C [0000-0003-2896-4138], Arribas, S [0000-0001-7997-1640], Birkmann, S [0000-0001-7058-1726], Böker, T [0000-0002-5666-7782], Charlot, S [0000-0003-3458-2275], De Marchi, G [0000-0001-7906-3829], Franx, M [0000-0002-8871-3026], Giardino, G [0000-0002-9262-7155], Kumari, N [0000-0002-5320-2568], Lützgendorf, N [0000-0001-6126-5238], Manjavacas, E [0000-0003-0192-6887], Marston, A [0000-0001-5788-5258], Muzerolle, J [0000-0002-5943-1222], Pirzkal, N [0000-0003-3382-5941], Rawle, T [0000-0002-7028-5588], Rix, HW [0000-0003-4996-9069], and Apollo - University of Cambridge Repository

Subjects
Astrophysics - instrumentation and methods for astrophysics, Space and Planetary Science, Spectrographs, Space vehicles - instruments, FOS: Physical sciences, Astronomy and Astrophysics, space vehicles: instruments, Instrumentation and Methods for Astrophysics (astro-ph.IM), Instrumentation, instrumentation: spectrographs
Abstract

We provide an overview of the design and capabilities of the near-infrared spectrograph (NIRSpec) onboard the James Webb Space Telescope. NIRSpec is designed to be capable of carrying out low-resolution ($R\!=30\!-330$) prism spectroscopy over the wavelength range $0.6-5.3\!~\mu$m and higher resolution ($R\!=500\!-1340$ or $R\!=1320\!-3600$) grating spectroscopy over $0.7-5.2\!~\mu$m, both in single-object mode employing any one of five fixed slits, or a 3.1$\times$3.2 arcsec$^2$ integral field unit, or in multiobject mode employing a novel programmable micro-shutter device covering a 3.6$\times$3.4~arcmin$^2$ field of view. The all-reflective optical chain of NIRSpec and the performance of its different components are described, and some of the trade-offs made in designing the instrument are touched upon. The faint-end spectrophotometric sensitivity expected of NIRSpec, as well as its dependency on the energetic particle environment that its two detector arrays are likely to be subjected to in orbit are also discussed., Comment: Accepted for publication in A&A. 22 pages, 19 figures

Published
2022
Full Text
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