Journal article

On the Observability of Individual Population III Stars and Their Stellar-mass Black Hole Accretion Disks through Cluster Caustic Transits

Rogier A Windhorst, FX Timmes, J Stuart B Wyithe, Mehmet Alpaslan, Stephen K Andrews, Daniel Coe, Jose M Diego, Mark Dijkstra, Simon P Driver, Patrick L Kelly, Duho Kim

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | IOP PUBLISHING LTD | Published : 2018

Abstract

We summarize panchromatic Extragalactic Background Light data to place upper limits on the integrated near-infrared surface brightness (SB) that may come from Population III stars and possible accretion disks around their stellar-mass black holes (BHs) in the epoch of First Light, broadly taken from z ≃ 7-17. Theoretical predictions and recent near-infrared power spectra provide tighter constraints on their sky signal. We outline the physical properties of zero-metallicity Population III stars from MESA stellar evolution models through helium depletion and of BH accretion disks at z ≳ 7. We assume that second-generation non-zero-metallicity stars can form at higher multiplicity, so that BH a..

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University of Melbourne Researchers

Grants

Awarded by NASA JWST from GSFC


Awarded by NASA under the Theoretical and Computational Astrophysics Networks (TCAN)


Awarded by NSF under the Software Infrastructure for Sustained Innovation (SI2)


Awarded by MINECO/FEDER, UE


Awarded by Ministerio de Economia y Competitividad of Spain



Funding Acknowledgements

This work was funded by NASA JWST Interdisciplinary Scientist grants NAG5-12460, NNX14AN10G, and 80NSSC18 K0200 to R.A.W. from GSFC. F.X.T. acknowledges support from NASA under the Theoretical and Computational Astrophysics Networks (TCAN) grant NNX14AB53G and by NSF under the Software Infrastructure for Sustained Innovation (SI<SUP>2</SUP>) grant 1339600 and grant PHY-1430152 for the Physics Frontier Center "Joint Institute for Nuclear Astrophysics-Center for the Evolution of the Elements" (JINA-CEE). J.S.B.W. acknowledges the support of the Australian Research Council. J.M.D. acknowledges the support of projects AYA2015-64508-P (MINECO/FEDER, UE), AYA2012-39475-C02-01, and Consolider Project CSD2010-00064 funded by the Ministerio de Economia y Competitividad of Spain.