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The Physical Conditions of Emission-line Galaxies at Cosmic Dawn from JWST/NIRSpec Spectroscopy in the SMACS 0723 Early Release Observations

التفاصيل البيبلوغرافية
العنوان: The Physical Conditions of Emission-line Galaxies at Cosmic Dawn from JWST/NIRSpec Spectroscopy in the SMACS 0723 Early Release Observations
المؤلفون: Trump, JR, Haro, PA, Simons, RC, Backhaus, BE, Amorín, RO, Dickinson, M, Fernández, V, Papovich, C, Nicholls, DC, Kewley, LJ, Brunker, SW, Salzer, JJ, Wilkins, SM, Almaini, O, Bagley, MB, Berg, DA, Bhatawdekar, R, Bisigello, L, Buat, V, Burgarella, D, Calabrò, A, Casey, CM, Ciesla, L, Cleri, NJ, Cole, JW, Cooper, MC, Cooray, AR, Costantin, L, Croton, D, Ferguson, HC, Finkelstein, SL, Fujimoto, S, Gardner, JP, Gawiser, E, Giavalisco, M, Grazian, A, Grogin, NA, Hathi, NP, Hirschmann, M, Holwerda, BW, Huertas-Company, M, Hutchison, TA, Jogee, S, Juneau, S, Jung, I, Kartaltepe, JS, Kirkpatrick, A, Kocevski, DD, Koekemoer, AM, Lotz, JM, Lucas, RA, Magnelli, B, Matharu, J, Pérez-González, PG, Pirzkal, N, Rafelski, M, Rose, C, Seillé, LM, Somerville, RS, Straughn, AN, Tacchella, S, Vanderhoof, BN, Weiner, BJ, Wuyts, S, Aaron Yung, LY, Zavala, JA
بيانات النشر: American Astronomical Society
//dx.doi.org/10.3847/1538-4357/acba8a
Astrophysical Journal
سنة النشر: 2023
المجموعة: Apollo - University of Cambridge Repository
مصطلحات موضوعية: 5101 Astronomical Sciences, 51 Physical Sciences
الوصف: Abstract We present rest-frame optical emission-line flux ratio measurements for five z > 5 galaxies observed by the James Webb Space Telescope Near-Infared Spectrograph (NIRSpec) in the SMACS 0723 Early Release Observations. We add several quality-control and post-processing steps to the NIRSpec pipeline reduction products in order to ensure reliable relative flux calibration of emission lines that are closely separated in wavelength, despite the uncertain absolute spectrophotometry of the current version of the reductions. Compared to z ∼ 3 galaxies in the literature, the z > 5 galaxies have similar [O iii]λ5008/Hβ ratios, similar [O iii]λ4364/Hγ ratios, and higher (∼0.5 dex) [Ne III]λ3870/[O II]λ3728 ratios. We compare the observations to MAPPINGS V photoionization models and find that the measured [Ne III]λ3870/[O II]λ3728, [O iii]λ4364/Hγ, and [O iii]λ5008/Hβ emission-line ratios are consistent with an interstellar medium (ISM) that has very high ionization ( ...
نوع الوثيقة: article in journal/newspaper
وصف الملف: text/xml; application/pdf
اللغة: English
العلاقة: https://www.repository.cam.ac.uk/handle/1810/361949Test
الإتاحة: https://www.repository.cam.ac.uk/handle/1810/361949Test
رقم الانضمام: edsbas.FEA46D83
قاعدة البيانات: BASE
الوصف
الوصف غير متاح.