Galaxy formation and evolution

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A solar metallicity galaxy at z > 7? Possible detection of the [N ii] 122 μm and [O iii] 52 μm lines

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 521:2 (2023) 2526-2534

Authors:

Meghana Killi, Darach Watson, Seiji Fujimoto, Hollis Akins, Kirsten Knudsen, Johan Richard, Yuichi Harikane, Dimitra Rigopoulou, Francesca Rizzo, Michele Ginolfi, Gergö Popping, Vasily Kokorev
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Dynamical Masses and Ages of Sirius-like Systems

ArXiv 2303.08198 (2023)

Authors:

Hengyue Zhang, Timothy D Brandt, Rocio Kiman, Alexander Venner, Qier An, Minghan Chen, Yiting Li
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On the functional form of the radial acceleration relation

(2023)

Authors:

Harry Desmond, Deaglan J Bartlett, Pedro G Ferreira
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The ionising photon production efficiency at z~6 for Lyman-alpha emitters using JEMS and MUSE

(2023)

Authors:

Charlotte Simmonds, Sandro Tacchella, Michael V Maseda, Christina Williams, William M Baker, Callum Witten, Benjamin D Johnson, Brant Robertson, Aayush Saxena, Fengwu Sun, Joris Witstok, Rachana Bhatawdekar, Kristan Boyett, Andrew J Bunker, Stephane Charlot, Emma Curtis-Lake, Eiichi Egami, Daniel J Eisenstein, Zhiyuan Ji, Roberto Maiolino, Lester Sandles, Renske Smit, Hannah Übler, Chris Willott
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In-orbit Performance of the Near-infrared Spectrograph NIRSpec on the James Webb Space Telescope

Publications of the Astronomical Society of the Pacific IOP Publishing 135:1045 (2023) 038001-038001

Authors:

T Böker, TL Beck, SM 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, AJ Bunker, AJ Cameron, S Carniani, S Charlot, M Curti, N Espinoza, P Ferruit, M Franx, P Jakobsen, D Karakla

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 detectors, wheel mechanisms, and the microshutter 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 spectrophotometric 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
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