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LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00005427naa a2200553 4500
001oai:DiVA.org:kth-243504
003SwePub
008190211s2017 | |||||||||||000 ||eng|
009oai:DiVA.org:su-148892
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-2435042 URI
0247 a https://doi.org/10.1051/0004-6361/2016303662 DOI
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-1488922 URI
040 a (SwePub)kthd (SwePub)su
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Carniani, S.u Univ Cambridge, Cavendish Lab, 19 JJ Thomson Ave, Cambridge CB3 0HE, England.;Univ Cambridge, Kavli Inst Cosmol, Madingley Rd, Cambridge CB3 0HA, England.4 aut
2451 0a Extended ionised and clumpy gas in a normal galaxy at z=7.1 revealed by ALMA
264 c 2017-09-06
264 1b EDP Sciences,c 2017
338 a print2 rdacarrier
500 a QC 20190211
520 a We present new ALMA observations of the [O III] 88 mu m line and high angular resolution observations of the [C II] 158 mu m line in a normal star forming galaxy at z = 7.1. Previous [C II] observations of this galaxy had detected [C II] emission consistent with the Ly alpha redshift but spatially slightly off set relative to the optical (UV-rest frame) emission. The new [C II] observations reveal that the [C II] emission is partly clumpy and partly diffuse on scales larger than about 1 kpc. [O III] emission is also detected at high significance, off set relative to the optical counterpart in the same direction as the [C II] clumps, but mostly not overlapping with the bulk of the [C II] emission. The off set between different emission components (optical/UV and different far-IR tracers) is similar to that which is observed in much more powerful starbursts at high redshift. We show that the [O III] emitting clump cannot be explained in terms of diffuse gas excited by the UV radiation emitted by the optical galaxy, but it requires excitation by in-situ (slightly dust obscured) star formation, at a rate of about 7 M circle dot yr(-1). Within 20 kpc from the optical galaxy the ALMA data reveal two additional [O III] emitting systems, which must be star forming companions. We discuss that the complex properties revealed by ALMA in the z similar to 7.1 galaxy are consistent with expectations by recent models and cosmological simulations, in which differential dust extinction, differential excitation and different metal enrichment levels, associated with different subsystems assembling a galaxy, are responsible for the various appearance of the system when observed with distinct tracers.
650 7a NATURVETENSKAPx Fysik0 (SwePub)1032 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciences0 (SwePub)1032 hsv//eng
653 a galaxies: evolution
653 a galaxies: ISM
653 a galaxies: high-redshift
653 a infrared: general
7001 a Maiolino, R.u Univ Cambridge, Cavendish Lab, 19 JJ Thomson Ave, Cambridge CB3 0HE, England.;Univ Cambridge, Kavli Inst Cosmol, Madingley Rd, Cambridge CB3 0HA, England.4 aut
7001 a Pallottini, A.u Univ Cambridge, Cavendish Lab, 19 JJ Thomson Ave, Cambridge CB3 0HE, England.;Univ Cambridge, Kavli Inst Cosmol, Madingley Rd, Cambridge CB3 0HA, England.;Scuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, Italy.4 aut
7001 a Vallini, Liviau Stockholms universitet,Nordiska institutet för teoretisk fysik (Nordita),Nordita SU4 aut0 (Swepub:su)lvall
7001 a Pentericci, L.u INAF Osservatorio Astron Roma, Via Frascati 33, I-00040 Monte Porzio Catone, Italy.4 aut
7001 a Ferrara, A.u Scuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, Italy.4 aut
7001 a Castellano, M.u INAF Osservatorio Astron Roma, Via Frascati 33, I-00040 Monte Porzio Catone, Italy.4 aut
7001 a Vanzella, E.u INAF Bologna Astron Observ, Via Ranzani 1, I-40127 Bologna, Italy.4 aut
7001 a Grazian, A.u INAF Osservatorio Astron Roma, Via Frascati 33, I-00040 Monte Porzio Catone, Italy.4 aut
7001 a Gallerani, S.u Scuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, Italy.4 aut
7001 a Santini, P.u INAF Osservatorio Astron Roma, Via Frascati 33, I-00040 Monte Porzio Catone, Italy.4 aut
7001 a Wagg, J.u Sq Kilometre Array Org, Jodrell Bank Observ, Macclesfield SK11 9DL, Cheshire, England.4 aut
7001 a Fontana, A.u INAF Osservatorio Astron Roma, Via Frascati 33, I-00040 Monte Porzio Catone, Italy.4 aut
7102 a Univ Cambridge, Cavendish Lab, 19 JJ Thomson Ave, Cambridge CB3 0HE, England.;Univ Cambridge, Kavli Inst Cosmol, Madingley Rd, Cambridge CB3 0HA, England.b Univ Cambridge, Cavendish Lab, 19 JJ Thomson Ave, Cambridge CB3 0HE, England.;Univ Cambridge, Kavli Inst Cosmol, Madingley Rd, Cambridge CB3 0HA, England.;Scuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, Italy.4 org
7730 t Astronomy and Astrophysicsd : EDP Sciencesg 605q 605x 0004-6361x 1432-0746
8564 u https://doi.org/10.1051/0004-6361/201630366y Fulltext
8564 u https://www.aanda.org/articles/aa/pdf/2017/09/aa30366-16.pdf
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-243504
8564 8u https://doi.org/10.1051/0004-6361/201630366
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-148892

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