Academic Journal
The ALPINE-ALMA [C II] survey: Investigation of 10 galaxies at z 4.5 with [O II] and [C II] line emission - ISM properties and [O II]-SFR relation
| العنوان: | The ALPINE-ALMA [C II] survey: Investigation of 10 galaxies at z 4.5 with [O II] and [C II] line emission - ISM properties and [O II]-SFR relation |
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| المؤلفون: | Brittany N Vanderhoof, A L Faisst, L Shen, B C Lemaux, M B??thermin, P L Capak, P Cassata, O Le??F??vre, D Schaerer, J Silverman, L Yan, M Boquien, R Gal, J Kartaltepe, L M Lubin, M Dessauges-Zavadsky, Y Fudamoto, M Ginolfi, N P Hathi, G C Jones, A M Koekemoer, D Narayanan, M Romano, M Talia, D Vergani, G Zamorani |
| المساهمون: | Brittany N Vanderhoof, A L Faisst, L Shen, B C Lemaux, M B??thermin, P L Capak, P Cassata, O Le??F??vre, D Schaerer, J Silverman, L Yan, M Boquien, R Gal, J Kartaltepe, L M Lubin, M Dessauges-Zavadsky, Y Fudamoto, M Ginolfi, N P Hathi, G C Jone, A M Koekemoer, D Narayanan, M Romano, M Talia, D Vergani, G Zamorani |
| سنة النشر: | 2022 |
| المجموعة: | IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) |
| مصطلحات موضوعية: | galaxies: evolution, galaxies: high-redshift, galaxies: ISM |
| الوصف: | We present 10 main-sequence ALPINE galaxies (log (M/M-circle dot) = 9.2-11.1 and SFR = 23 - 190 M-circle dot yr(-1)) at z similar to 4.5 with optical [O II] measurements from Keck/MOSFIRE spectroscopy and Subaru/MOIRCS narrow-band imaging. This is the largest such multiwavelength sample at these redshifts, combining various measurements in the ultraviolet, optical, and far-infrared including [C II]158 mu m line emission and dust continuum from ALMA and H alpha emission from Spitzer photometry.For the first time, this unique sample allows us to analyse the relation between [O II] and total star-formation rate (SFR) and the interstellar medium (ISM) properties via [O II]/[C II] and [O II]/H alpha luminosity ratios at z similar to 4.5. The [O II]-SFR relation at z similar to 4.5 cannot be described using standard local descriptions, but is consistent with a metal-dependent relation assuming metallicities around 50 per cent solar. To explain the measured dust-corrected luminosity ratios of log(L-[OII]/L-[CII]) similar to 0.98(-0.22)(+0.21) and log(L-[OII]/L-H alpha) similar to -0.22(-0.15)(+0.13) for our sample, ionization parameters log (U) < -2 and electron densities log(ne/[cm(-3)])similar to 2.5 - 3 are required. The former is consistent with galaxies at z similar to 2-3, however lower than at z > 6. The latter may be slightly higher than expected given the galaxies' specific SFR. The analysis of this pilot sample suggests that typical log (M/M-circle dot) > 9 galaxies at z similar to 4.5 to have broadly similar ISM properties as their descendants at z similar to 2 and suggest a strong evolution of ISM properties since the epoch of reionization at z > 6. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | STAMPA |
| اللغة: | English |
| Relation: | info:eu-repo/semantics/altIdentifier/wos/WOS:000770034000006; volume:511; issue:1; firstpage:1303; lastpage:1316; numberofpages:14; journal:MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY; https://hdl.handle.net/11585/905570; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85128269434; https://academic.oup.com/mnras/article/511/1/1303/6507585?login=false |
| DOI: | 10.1093/mnras/stac071 |
| الاتاحة: | https://hdl.handle.net/11585/905570 https://doi.org/10.1093/mnras/stac071 https://academic.oup.com/mnras/article/511/1/1303/6507585?login=false |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.E45C597A |
| قاعدة البيانات: | BASE |
| DOI: | 10.1093/mnras/stac071 |
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