Jens Hjorth

Jens Hjorth

Professor

ORCID: 0000-0002-4571-2306

Introductory remarks on publicationslist

> 300 refereed publications with > 20000 citations listed in the Astrophysics Data System
~20 scientific papers in Nature or Science
Most cited paper: J. Hjorth et al. Nature 423, 847–850 (2003): > 1000 citations
h-index (number of publications with more than h citations): 79


Publication year:
All
301 - 350 out of 555Page size: 50
  1. 2007
  2. Published

    Rapid-response mode VLT/UVES spectroscopy of GRB 060418- Conclusive evidence for UV pumping from the time evolution of Fe II and Ni II excited-and metastable-level populations

    Wreeswijk, P. M., Ledoux, C., Smette, A., Ellison, S. L., Jaunsen, A. O., Andersen, M. I., Fruchter, A. S., Fynbo, Johan Peter Uldall, Hjorth, Jens, Kaufer, A., Møller, P., Petitjean, P., Savaglio, S. & Wijers, R. A. M. J., 2007, In: Astronomy & Astrophysics. 468, 1, p. 83-96 14 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  3. Published

    The nature of the x-ray flash of August 24 2005: Photometric evidence for an on-axis z= 0.83 burst with continuous energy injection and an associated supernova ?

    Sollerman, J. O., Fynbo, J. P. U., Gorosabel, J., Halpern, J., Hjorth, J., Jakobsson, P., Mirabal, N., Watson, D. J., Xu, D., Castro-Tirado, A. J., Féron, C., Jaunsen, A. O., Jelinek, M., Jensen, B. L., Kann, D. A., Osvaldsen, J. E., Pozanenko, A., Stritzinger, M. D., Thöne, C., de Ugarte Postigo, A. & 6 others, Guziy, S., Ibrahimov, M., Järvinen, S. P., Levan, A., Rumyantsev, V. & Tanvir, N., 2007, In: Astronomy & Astrophysics. 466, 3, p. 839-846 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  4. Published

    Very different x-ray-to-optical column density ratios in ¿-ray burst afterglows: ionization in GRB environments

    Watson, Darach Jafar, Hjorth, Jens, Fynbo, Johan Peter Uldall, Jakobsson, P., Foley, S., Sollerman, J. O. & Wijers, R. A. M. J., 2007, In: Astrophysical Journal. 660, 2, p. L101-L104 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  5. 2008
  6. Published

    GRB 070306: a highly extinguished afterglow

    Jaunsen, A. O., Rol, E., Watson, Darach Jafar, Malesani, Daniele Bjørn, Ovaldsen, J. -., Fynbo, Johan Peter Uldall, Milvang-Jensen, B., Hjorth, Jens, Vreeswijk, P. M., Wiersema, K., Tanvir, N. R., Levan, A., Schirmer, M. & Castro-Tirado, A. J., 2008, In: Astrophysical Journal. 681, 1, p. 453-461 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  7. Published

    GRB 080913: VLT redshift

    Vreeswijk, P. M., Fynbo, Johan Peter Uldall, Malesani, Daniele Bjørn, Hjorth, Jens & de Ugarte Postigo, A., 2008, USA

    Research output: Other contribution › Research

  8. Published

    GRB080916A: spectroscopic redshift

    Fynbo, Johan Peter Uldall, Malesani, Daniele Bjørn, Hjorth, Jens, Sollerman, J. O. & Thöne, C., 2008, In: GCN circulars. 8254, p. 1

    Research output: Contribution to journal › Journal article › Research

  9. Published

    Hot GRB-selected submillimeter galaxies: Conference on Pathways Through and Eclectic UniverseSantiago del Teide, SPAIN, APR 23-27, 2007 , Book Series: ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES    Volume: 390    Pages: 493-494    Published: 2008

    Michalowski, M., Hjorth, Jens, Castro Cerón, J. M. & Watson, Darach Jafar, 2008, ASP Conference Series,  vol.390: Pathways Through an Eclectic Universe. Vol. 390.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

  10. Published

    Mildly relativistic X-ray transient 080109 and SN 2008D: towards a continuum from energetic GRB/XRF to ordinary Ibc SN

    Xu, D., Watson, Darach Jafar, Fynbo, Johan Peter Uldall, Fan, Y., Zou, Y. & Hjorth, Jens, 2008.

    Research output: Contribution to conference › Poster › Research

  11. Published

    On the nature of the short-duration GRB 050906

    Levan, A., Tanvir, N., Jakobsson, P., Chapman, R., Hjorth, Jens, Priddey, R., Fynbo, Johan Peter Uldall, Hurley, K., Jensen, B., Johnson, R., Gorosabel, J., Castro-Tirado, A., Jarvis, M., Watson, Darach Jafar & Wiersema, K., 2008, In: Monthly Notices of the Royal Astronomical Society. 384, 2, p. 541-547 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  12. Published

    Simulated dark-matter halos as a test of nonextensive statistical mechanics

    Féron, C. & Hjorth, Jens, 2008, In: Physical Review E (Statistical, Nonlinear, and Soft Matter Physics). 77 (Part 1), 2, p. 022106

    Research output: Contribution to journal › Journal article › Research › peer-review

  13. Published

    Spatially resolved properties of the GRB 060505 host: Implications for the nature of the progenitor

    Thöne, C., Fynbo, Johan Peter Uldall, Östlin, G., Milvang-Jensen, B., Wiersema, K., Malesani, Daniele Bjørn, Della M. F., D., Gorosabel, J., Kann, D. A., Watson, Darach Jafar, Michalowski, M. J., Fruchter, A. S., Levan, A. J., Hjorth, Jens & Sollerman, J. O., 2008, In: Astrophysical Journal. 678, 2, p. 1151-1161 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  14. Published

    Spectroscopy and multiband photometry of the afterglow of intermediate duration ¿-ray burst GRB 040924 and its host galaxy

    Wiersema, K., Wiersema, A., Kann, A., Rol, E., Starling, R., Curran, P., Gorosabel, J., Levan, A., Fynbo, J. P. U., de Ugarte Postigo, A., Wijers, R., Castro-Tirado, A., Guziy, S., Hornstrup, A., Hjorth, J., Jelínek, M., Jensen, B., Kidger, M., Martin-Luis, F., Tanvir, N. & 2 others, Tristam, P. & Vreeswijk, P. M., 2008, In: Astronomy & Astrophysics. 481, 2, p. 319-326 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  15. Published

    The extreme, red afterglow of GRB 060923A: distance or dust?

    Tanvir, N., Levan, A., Rol, E., Starling, R., Gorosabel, J., Priddey, R., Malesani, D., Jakobsson, P., O'Brien, P., Jaunsen, A., Hjorth, Jens, Fynbo, Johan Peter Uldall, Melandri, A., Gomboc, A., Milvang-Jensen, B., Fruchter, A., Jarvis, M., Fernandes, C. & Wold, T., 2008, In: Monthly Notices of the Royal Astronomical Society. 388, 4, p. 1743-1750 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  16. Published

    The nature of GRB-selected submillimeter galaxies: hot and young

    Michalowski, M., Hjorth, Jens, Castro Cerón, J. M. & Watson, Darach Jafar, 2008, In: Astrophysical Journal. 672, 2, p. 817-824

    Research output: Contribution to journal › Journal article › Research › peer-review

  17. Published

    GRB080603: NOT redshift

    Fynbo, Johan Peter Uldall, Quirion, P., Malesani, Daniele Bjørn, Malesani, Daniele Bjørn, Thöne, C., Hjorth, Jens, Milvang-Jensen, B. & Jakobsson, P., 3 Jun 2008, USA

    Research output: Other contribution › Research

  18. Published

    GRB 080703: VLT observations of the afterglow

    Malesani, Daniele Bjørn, Vreeswijk, P. M., Fynbo, Johan Peter Uldall, Hjorth, Jens & Jakobsson, P., 4 Jul 2008, USA

    Research output: Other contribution › Research

  19. Published

    GRB 080805: VLT redshift update

    de Ugarte Postigo, A., Thöne, C., Fynbo, Johan Peter Uldall, Hjorth, Jens, Jacobsson, P., Bahindi, Z., Grundahl, F. & Ahrentoft, T., 11 Aug 2008, USA

    Research output: Other contribution › Research

  20. 2009
  21. Published

    A gamma-ray burst at a redshift of z approximate to 8.2

    Tanvir, N. R., Fox, D. B., Levan, A. J., Fynbo, Johan Peter Uldall, Hjorth, Jens, Sollerman, J. O. & Watson, Darach Jafar, 2009, In: Nature. 461, 7268, p. 1254-1257 3 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  22. Published

    A search for disk-galaxy lenses in the sloan digital sky survey

    Féron, C., Hjorth, Jens, McKean, J. P. & Samsing, J., 2009, In: Astrophysical Journal. 696, 2, p. 1319-1338

    Research output: Contribution to journal › Journal article › Research › peer-review

  23. Published

    Dust extinction in high-z galaxies with gamma-ray burst afterglow spectroscopy: the 2175 Å feature at z = 2.45

    Elíasdóttir, Á., Fynbo, Johan Peter Uldall, Hjorth, Jens, Ledoux, C., Watson, Darach Jafar, Andersen, A. C., Malesani, Daniele Bjørn, Vreeswijk, P. M., Prochaska, J. X., Sollerman, J. & Jaunsen, A. O., 2009, In: Astrophysical Journal. 697, 2, p. 1725-1740 15 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  24. Published

    Early spectroscopic identification of SN 2008D

    Malesani, Daniele Bjørn, Fynbo, Johan Peter Uldall, Hjorth, Jens, Leloudas, G., Vreeswijk, P. M., Watson, Darach Jafar, Thöne, C., Milvang-Jensen, B. & Sollerman, J. O., 2009, In: Astrophysical Journal. 692, 2, p. L84-L87 4 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  25. Published

    GRB 060605: multi-wavelength analysis of the first GRB observed using integral field spectroscopy

    Ferrero..[et al.], P., Hjorth, Jens & Malesani, Daniele Bjørn, 2009, In: Astronomy & Astrophysics. 497, 3, p. 729-741

    Research output: Contribution to journal › Journal article › Research › peer-review

  26. Published

    GRB 080913 at redshift 6.7

    Greiner, J., Krühler, T., Fynbo, J. P. U., Rossi, A., Schwarz, R., Klose, S., Savaglio, S., Tanvir, N. R., McBreen, S., Totani, T., Zhang, B. B., Wu, X. F., Watson, D., Barthelmy, S. D., Beardmore, A. P., Ferrero, P., Gehrels, N., Kann, D. A., Kawai, N., Yoldas, A. K. & 27 others, Mészáros, P., Milvang-Jensen, B., Oates, S. R., Pierini, D., Schady, P., Toma, K., Vreeswijk, P. M., Yoldas, A., Zhang, B., Afonso, P., Aoki, K., Burrows, D. N., Clemens, C., Filgas, R., Haiman, Z., Hartmann, D. H., Hasinger, G., Hjorth, Jens, Jehin, E., Levan, A. J., Liang, E. W., Malesani, Daniele Bjørn, Pyo, T., Schulze, S., Szokoly, G., Terada, K. & Wiersema, K., 2009, In: Astrophysical Journal. 693, 2, p. 1610-1620 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  27. Published

    Gravitational lenses as cosmic rules: omega(m), omega(lambda) from time delays and velocity dispersions

    Paraficz, D. & Hjorth, Jens, 2009, In: Astronomy & Astrophysics. 507, 3, p. L49-L52 3 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  28. Published

    In search of progenitors for supernovaless gamma-ray bursts 060505 and 060614: re-examination of their afterglow

    Xu, D., Starling, R. L. C., Fynbo, Johan Peter Uldall, Sollerman, J. O., Yost, S., Watson, Darach Jafar, Foley, S., O'Brien, P. T. & Hjorth, Jens, 2009, In: Astrophysical Journal. 696, 1, p. 971-979

    Research output: Contribution to journal › Journal article › Research › peer-review

  29. Published

    Low-resolution spectroscopy of gamma-ray burst optical afterglows: biases in the swift sample and characterization of the absorbers

    Fynbo, Johan Peter Uldall, Jakobsson, P., Malesani, Daniele Bjørn, Vreeswijk, P. M., Hjorth, Jens, Sollerman, J. O., Jensen, B. L., Milvang-Jensen, B., Watson, Darach Jafar & Xu, D., 2009, In: Astrophysical Journal Supplement Series. 185, 2, p. 526-573 47 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  30. Published

    Mørkt stof - vi ved så meget og dog så lidt

    Hansen, Steen Harle, Pedersen, K., Sollerman, J. O., Andersen, Anja C., Fynbo, Johan Peter Uldall, Hjorth, Jens, Toft, Sune & Watson, Darach Jafar, 2009, In: Kvant. 2, p. 14-17 3 p.

    Research output: Contribution to journal › Journal article › Communication

  31. Published

    NGC 2770: a supernova Ib factory ?

    Thöne, C. C., Michalowski, M., Leloudas, G., Cox, N. L. J., Fynbo, Johan Peter Uldall, Sollerman, J., Hjorth, Jens & Vreeswijk, P. M., 2009, In: Astrophysical Journal. 698, 2, p. 1307-1320

    Research output: Contribution to journal › Journal article › Research › peer-review

  32. Published

    Results of optical monitoring of 5 SDSS double QSOs with the Nordic Optical Telescope

    Paraficz, D., Hjorth, Jens & Elíasdóttir, Á., 2009, In: Astronomy & Astrophysics. 499, 2, p. 395-408 13 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  33. Published

    The properties of the host galaxy and the immediate environment of GRB 980425 / SN 1998bw from the multi-wavelength spectral energy distribution

    Michalowski, M., Hjorth, Jens, Malesani, Daniele Bjørn, Michalowski, T., María Castro Cerón, J., Reinfrank, R. F., Garrett, M. A., Fynbo, Johan Peter Uldall, Watson, Darach Jafar & Jørgensen, Uffe Gråe, 2009, In: Astrophysical Journal. 693, 1, p. 347-354

    Research output: Contribution to journal › Journal article › Research › peer-review

  34. 2010
  35. Published

    Erratum: "Low-Resolution Spectroscopy of Gamma-Ray Burst Optical Afterglows: Biases in the Swift Sample and Characterization of the Absorbers" (2009, ApJS, 185, 526)

    Fynbo, Johan Peter Uldall, Malesani, Daniele Bjørn, Vreeswijk, P. M., Hjorth, Jens, Sollerman, J. O., Thöne, C., Maund, J. R., Milvang-Jensen, B., Watson, Darach Jafar & Xu, D., 3 Feb 2010, In: Astrophysical Journal Supplement Series. 186, 2, p. 485-496 11 p.

    Research output: Contribution to journal › Comment/debate › Research › peer-review

  36. Published

    Rapid Dust Production in Submillimeter Galaxies at z > 4?

    Michalowski, M., Watson, Darach Jafar & Hjorth, Jens, 1 Apr 2010, In: Astrophysical Journal. 712, 2, p. 942-950 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  37. Published

    The Hubble Constant Inferred from 18 Time-delay Lenses

    Paraficz, D. & Hjorth, Jens, 1 Apr 2010, In: Astrophysical Journal. 712, 2, p. 1378-1384 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  38. Published

    GRB 090313: X-shooter's first shot at a gamma-ray burst

    de Ugarte Postigo...[et al.}, A., Goldoni, P., Thöne, C., Malesani, Daniele Bjørn, Fynbo, Johan Peter Uldall, Hjorth, Jens, Rasmussen, Per Kjærgaard & Andersen, M., 22 Apr 2010, In: Astronomy & Astrophysics. 513, p. A42 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  39. Published

    Cosmic evolution of submillimeter galaxies and their contribution to stellar mass assembly

    Michalowski, M., Hjorth, Jens & Watson, Darach Jafar, 28 May 2010, In: Astronomy & Astrophysics. 514, p. A67 51 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  40. Published

    No evidence for dust extinction in GRB 050904 at z similar to 6.3

    Zafar, T., Watson, Darach Jafar, Malesani, Daniele Bjørn, Vreeswijk, P. M., Fynbo, Johan Peter Uldall, Hjorth, Jens, Levan, A. J. & Michalowski, M., 15 Jun 2010, In: Astronomy & Astrophysics. 515, p. A94 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  41. Published

    Photometry and spectroscopy of GRB 060526: a detailed study of the afterglow and host galaxy of a z=3.2 gamma-ray burst

    Thöne, C., Kann, D. A., Fynbo, Johan Peter Uldall, Hjorth, Jens, Jørgensen, Uffe Gråe, Malesani, Daniele Bjørn & Vreeswijk, P. M., 17 Jul 2010, In: Astronomy & Astrophysics. 523, A70, 21 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  42. Published

    GRB 021004: Tomography of a gamma-ray burst progenitor and its host galaxy

    Castro-Tirado...[et al.], A. J., Møller, P., Castro Cerón, J. M., Fynbo, Johan Peter Uldall, Hjorth, Jens, Pedersen, H. & Vreeswijk, P. M., 6 Aug 2010, In: Astronomy & Astrophysics. 517, p. A61 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  43. Published

    The Afterglows of Swift-era Gamma-ray Bursts. I. Comparing pre-Swift and Swift-era Long/Soft (Type II) GRB Optical Afterglows

    Kann...[et al.], D. A., Klose, S., Zhang, B., Malesani, Daniele Bjørn, Castro Cerón, J. M., Fynbo, Johan Peter Uldall, Hjorth, Jens, Laursen, Peter, Sollerman, J. O. & Watson, Darach Jafar, 10 Sep 2010, In: Astrophysical Journal. 720, 2, p. 1513-1558 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  44. Published

    On the distribution of stellar masses in gamma-ray burst host galaxies

    Castro Cerón, J. M., Michalowski, M., Hjorth, Jens, Malesani, Daniele Bjørn, Gorosabel, J., Watson, Darach Jafar, Fynbo, Johan Peter Uldall & Calderon, C. M., 14 Sep 2010, In: Astrophysical Journal. 721, 2, p. 1919-1927 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  45. Published

    Statistical mechanics of collisionless orbits. I. origin of central cusps in dark-matter halos

    Hjorth, Jens & Williams, L. L. R., 23 Sep 2010, In: Astrophysical Journal. 722, 1, p. 851-855 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  46. Published

    Statistical mechanics of collisionless orbits. II. structure of halos

    Williams, L. L. R. & Hjorth, Jens, 1 Oct 2010, In: Astrophysical Journal. 722, 1, p. 856-861 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  47. Published

    The unusual X-ray emission of the short Swift GRB 090515: evidence for the formation of a magnetar?

    Rowlinson...[et al.], A., O'Brien, P. T., Tanvir, N. R. & Hjorth, Jens, 5 Oct 2010, In: Monthly Notices of the Royal Astronomical Society. 409, 2, p. 531-540 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  48. Published

    Discovery of the afterglow and host galaxy of the low-redshift short GRB 080905A

    Rowlinson...[et al.], A., Wiersema, K., Levan, A. J., Hjorth, Jens, Thöne, C. & Fynbo, Johan Peter Uldall, 11 Oct 2010, In: Monthly Notices of the Royal Astronomical Society. 408, 1, p. 383-391 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  49. Published

    Dust grain growth in the interstellar medium of 5 < z < 6.5 quasars

    Michalowski, M., Murphy, E., Hjorth, Jens, Watson, Darach Jafar, Gall, C. & Dunlop, J. S., 27 Oct 2010, In: Astronomy & Astrophysics. 522, A15, 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  50. Published

    Simultaneous polarization monitoring of supernovae SN2008D/XT 080109 and SN2007uy: isolating geometry from dust

    Gorosabel...[et al.], J., Fynbo, Johan Peter Uldall, Hjorth, Jens, Michalowski, M. & Xu, D., 27 Oct 2010, In: Astronomy & Astrophysics. 522, p. A14 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  51. Published

    VLT/X-shooter spectroscopy of the GRB 090926A afterglow

    D'Elia...[et al.], V., Fynbo, Johan Peter Uldall, Sollerman, J. O., Vreeswijk, P. M., Watson, Darach Jafar, Zafar, T., Hjorth, Jens, Malesani, Daniele Bjørn & Milvang-Jensen, B., 15 Nov 2010, In: Astronomy & Astrophysics. 532, A36, 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  52. Published

    Statistical mechanics of collisionless orbits. III. comparison with N-body simulations

    Williams, L. L. R., Wojtak, R. & Hjorth, Jens, 17 Nov 2010, In: Astrophysical Journal. 725, 1, p. 282-287 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  53. Published

    Late-time observations of GRB 080319B: jet break, host galaxy, and accompanying supernova

    Tanvir..[et al.], N. R., Rol, E., Levan, A. J., Fynbo, Johan Peter Uldall & Hjorth, Jens, 19 Nov 2010, In: Astrophysical Journal. 725, 1, p. 625-632 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  54. 2011
  55. Published

    GRB 050502B optical afterglow: a jet-break at high redshift

    Afonso...[et al.], P., Greiner, J., Pian, E., Covino, S., Malesani, Daniele Bjørn & Hjorth, Jens, 13 Jan 2011, In: Astronomy & Astrophysics. 526, p. A154 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

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