The UvA-LINKER will give you a range of other options to find the full text of a publication (including a direct link to the full-text if it is located on another database on the internet).
De UvA-LINKER biedt mogelijkheden om een publicatie elders te vinden (inclusief een directe link naar de publicatie online als deze beschikbaar is in een database op het internet).

Zoekresultaten

Zoekopdracht: journal id: "astrophysicalxjournal"

AuteursA.E. Ruiz-Velasco, H. Swan, E. Troja, D. Malesani, J.P.U. Fynbo, R.L.C. Starling, D. Xu, F. Aharonian, C. Akerlof, M.I. Andersen, M.C.B. Ashley, S.D. Barthelmy, D.F. Bersier, J.M. Cerón, A.J. Castro-Tirado, N. Gehrels, E. Gögüs, J. Gorosabel, C. Guidorzi, T. Güver, J. Hjorth, D. Horns, K.Y. Huang, P. Jakobsson, B.L. Jensen, Ü. Kiziloglu, C. Kouveliotou, H.A. Krimm, C. Ledoux, A.J. Levan, T. Marsh, T. McKay, A. Melandri, B. Milvang-Jensen, C.G. Mundell, P.T. O'Brien, M. Özel, A. Phillips, R. Quimby, G. Rowell, W. Rujopakarn, E.S. Rykoff, B.E. Schaefer, J. Sollerman, N.R. Tanvir, C.C. Thöne, Y. Urata, W.T. Vestrand, P.M. Vreeswijk, D. Watson, J.C. Wheeler, R.A.M.J. Wijers, J. Wren, S.A. Yost, F. Yuan, M. Zhai, W.K. Zheng
TitelDetection of GRB 060927 at z = 5.47: Implications for the Use of Gamma-Ray Bursts as Probes of the End of the Dark Ages
TijdschriftAstrophysical Journal
Jaargang669
Jaar2007
Pagina's1-9
ISSN0004637X
FaculteitFaculteit der Natuurwetenschappen, Wiskunde en Informatica
Instituut/afd.FNWI: Astronomical Institute Anton Pannekoek (IAP)
SamenvattingWe report on follow-up observations of the gamma-ray burst GRB 060927 using the robotic ROTSE-IIIa telescope and a suite of larger aperture ground-based telescopes. An optical afterglow was detected 20 s after the burst, the earliest rest-frame detection of optical emission from any GRB. Spectroscopy performed with the VLT about 13 hr after the trigger shows a continuum break at lambda~8070 Å, produced by neutral hydrogen absorption at z~5.6. We also detect an absorption line at 8158 Å, which we interpret as Si II lambda1260 at z=5.467. Hence, GRB 060927 is the second most distant GRB with a spectroscopically measured redshift. The shape of the red wing of the spectral break can be fitted by a damped Lyalpha profile with a column density with log(N<SUB>H</SUB>/cm<SUP>-2</SUP>)=22.50+/-0.15. We discuss the implications of this work for the use of GRBs as probes of the end of the dark ages and draw three main conclusions: (1) GRB afterglows originating from z>~6 should be relatively easy to detect from the ground, but rapid near-infrared monitoring is necessary to ensure that they are found; (2) the presence of large H I column densities in some GRB host galaxies at z>5 makes the use of GRBs to probe the reionization epoch via spectroscopy of the red damping wing challenging; and (3) GRBs appear crucial to locate typical star-forming galaxies at z>5, and therefore the type of galaxies responsible for the reionization of the universe. Partly based on observations carried out with the ESO telescopes under programs 077.D-0661, 077.A-0667, 078.D-0416, and the large program 177.A-f0591.
Soort documentArtikel
Document finderUvA-Linker