Sökning: id:"swepub:oai:DiVA.org:uu-320466" >
The Spectral Evolut...
The Spectral Evolution of the First Galaxies. III. Simulated James Webb Space Telescope Spectra of Reionization-epoch Galaxies with Lyman-continuum Leakage
-
- Zackrisson, Erik (författare)
- Uppsala universitet,Observationell astrofysik
-
- Binggeli, Christian (författare)
- Uppsala universitet,Observationell astrofysik
-
- Finlator, Kristian (författare)
- New Mexico State Univ, MSC 4500, Las Cruces, NM 88003 USA.
-
visa fler...
-
- Gnedin, Nickolay Y. (författare)
- Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA.;Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA.;Univ Chicago, Kavli Inst Cosmol Phys & Enrico Fermi Inst, Chicago, IL 60637 USA.
-
- Paardekooper, Jan-Pieter (författare)
- Heidelberg Univ, Zentrum Astronomie, Inst Theoret Astrophys, Albert Ueberle Str 2, D-69120 Heidelberg, Germany.
-
- Shimizu, Ikkoh (författare)
- Osaka Univ, Dept Earth & Space Sci, 1-1 Machikaneyama, Toyonaka, Osaka 565, Japan.
-
- Inoue, Akio K. (författare)
- Osaka Sangyo Univ, Coll Gen Educ, 3-1-1,Nakagaito, Daito 5748530, Japan.
-
- Jensen, Hannes (författare)
- Uppsala universitet,Observationell astrofysik
-
- Micheva, Genoveva (författare)
- Univ Michigan, Dept Astron, 311 West Hall,1085 S. Univ Ave, Ann Arbor, MI 48109 USA.
-
- Khochfar, Sadegh (författare)
- Univ Edinburgh, Inst Astron, Edinburgh EH9 3HJ, Midlothian, Scotland.
-
- Dalla Vecchia, Claudio (författare)
- Inst Astrofis Canarias, C Via Lactea S-N, E-38205 Tenerife, Spain.;Univ La Laguna, Dept Astrofis, Av Astrofis Francisco Sanchez S-N, E-38206 San Cristobal la Laguna, Spain.
-
visa färre...
-
(creator_code:org_t)
- 2017-02-09
- 2017
- Engelska.
-
Ingår i: Astrophysical Journal. - : Institute of Physics Publishing (IOPP). - 0004-637X .- 1538-4357. ; 836:1
- Relaterad länk:
-
http://arxiv.org/pdf...
-
visa fler...
-
https://urn.kb.se/re...
-
https://doi.org/10.3...
-
visa färre...
Abstract
Ämnesord
Stäng
- Using four different suites of cosmological simulations, we generate synthetic spectra for galaxies with different Lyman-continuum escape fractions (f(esc)) at redshifts z approximate to 7-9, in the rest-frame wavelength range relevant for the James Webb Space Telescope (JWST) NIRSpec instrument. By investigating the effects of realistic star formation histories and metallicity distributions on the EW(H beta)-beta diagram (previously proposed as a tool for identifying galaxies with very high f(esc)), we find that neither of these effects are likely to jeopardize the identification of galaxies with extreme Lyman-continuum leakage. Based on our models, we expect that essentially all z approximate to 7-9 galaxies that exhibit rest-frame EW(Hb). 30 angstrom to have f(esc) > 0.5. Incorrect assumptions concerning the ionizing fluxes of stellar populations or the dust properties of z > 6 galaxies can in principle bias the selection, but substantial model deficiencies of this type should at the same time be evident from offsets in the observed distribution of z > 6 galaxies in the EW(H beta)-beta diagram compared to the simulated distribution. Such offsets would thereby allow JWST/NIRSpec measurements of these observables to serve as input for further model refinement.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Nyckelord
- dark ages
- reionization
- first stars
- galaxies: high-redshift
- techniques: spectroscopic
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
-
Zackrisson, Erik
-
Binggeli, Christ ...
-
Finlator, Kristi ...
-
Gnedin, Nickolay ...
-
Paardekooper, Ja ...
-
Shimizu, Ikkoh
-
visa fler...
-
Inoue, Akio K.
-
Jensen, Hannes
-
Micheva, Genovev ...
-
Khochfar, Sadegh
-
Dalla Vecchia, C ...
-
visa färre...
- Om ämnet
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Fysik
-
och Astronomi astrof ...
- Artiklar i publikationen
-
Astrophysical Jo ...
- Av lärosätet
-
Uppsala universitet