Jens Hjorth

Jens Hjorth

Professor

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


  1. Published

    ESO and NOT photometric monitoring of the Cloverleaf quasar

    Østensen, R., Hjorth, Jens & et al., 1997, In : Astron. Astrophys. Suppl.. 126, p. 393-400

    Research output: Contribution to journalJournal articleResearch

  2. Published

    ORIGIN: metal creation and evolution from the cosmic dawn

    den Harder, J. W., Piro, L., Ohashi, T., Kouveliotou, C., Hartmann, Kasstra, J. S., Amati, L., Andersen, Michael Ingemann, Fynbo, Johan Peter Uldall, Hjorth, Jens & Pedersen, K., 1 Oct 2012, In : Experimental Astronomy. 34, 2,SI, p. 519-549 30 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

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

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

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. 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 contributionResearch

  5. Published

    Extensive multiband study of the X-ray rich GRB 050408 - A likely off-axis event with an intense energy injection

    de Ugarte Postigo, A., Fatkhullin, T. A., J'ohannesson, G., Gorosabel, J., Sokolov, V. V., Castro-Tirado, A. J., Balega, Y. Y., Spiridonova, O. I., Jelinek, M., Guziy, S., P'erez-Ramirez, D., Hjorth, Jens, Laursen, P., Bersier, D., Pandey, S. B., Bremer, M., Monfardini, A., Huang, K. Y., Urate, Y., Ip, W. H., Tamagawa, T., Kinoshita, D., Mizuno, T., Arai, Y., Yamagishi, H., Soyano, T., Usui, F., Tashiro, M., Abe, K., Onda, K., Aslan, Z., Khamitov, I., Ozisik, T., Kiziloglu, U., Bikmaev, I., Sakhibullin, N., Burenien, R., Pavlinsky, M., Sunyaev, R., Bhattacharya, D., Kamble, A. P., Ishwara Chandra, C. H. & Trushkin, S. A., 2007, In : Astronomy & Astrophysics. 462, 3, p. L57-L60 3 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. Published

    Syv professorer: danske politikere svækker uddannelses- og forskningsmiljøet,

    Zahavi, Dan, Nosch, Marie Louise Bech, Porsdam, Helle, Hjorth, Jens, Bruun, Mette Birkedal, Willerslev, Eske & Hartlev, Mette, Dec 2018, In : Berlingske Tidende.

    Research output: Contribution to journalContribution to newspaper - Newspaper articleCommunication

  7. Published

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

    Zafar, T., Watson, Darach Jafar, Malesani, D., 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 journalJournal articleResearchpeer-review

  8. Published

    The 2175 angstrom Extinction Feature in the Optical Afterglow Spectrum of GRB 180325A at z =. 2.25

    Zafar, T., Heintz, K. E., Fynbo, Johan Peter Uldall, Malesani, D., Bolmer, J., Ledoux, C., Arabsalmani, M., Kaper, L., Campana, S., Starling, R. L. C., Selsing, J., Kann, D. A., de Ugarte Postigo, A., Schweyer, T., Christensen, Lise Bech, Moller, P., Japelj, J., Perley, D., Tanvir, N. R., D'Avanzo, P., Hartmann, D. H., Hjorth, Jens, Covino, S., Sbarufatti, B., Jakobsson, P., Izzo, L., Salvaterra, R., D'Elia, V. & Xu, D., 20 Jun 2018, In : Astrophysics Journal Letters. 860, 2, 7 p., L21.

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. Published

    Dynamics of merging: post-merger mixing and relaxation of an Illustris galaxy

    Young, A. M., Williams, L. L. R. & Hjorth, Jens, 19 Feb 2018, In : Journal of Cosmology and Astroparticle Physics. 2018, 2, 27 p., 033.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Published

    Ubiquity of density slope oscillations in the central regions of galaxy and cluster-sized systems

    Young, A. M., Williams, L. L. R. & Hjorth, Jens, 2 May 2016, In : Journal of Cosmology and Astroparticle Physics. 2016, 4, 010.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. 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 journalJournal articleResearchpeer-review

  12. Published
  13. Published

    DISCOVERY OF THE BROAD-LINED TYPE Ic SN 2013cq ASSOCIATED WITH THE VERY ENERGETIC GRB 130427A

    Xu, D., Ugarte Postigo, A. D., Leloudas, G., Krühler, T. C., Cano, Z., Hjorth, Jens, Malesani, D., Fynbo, Johan Peter Uldall, Jakobsson, P., Kaper, L., Sollerman, J. O., Watson, Darach Jafar, Thöne, C., Milvang-Jensen, Bo & Sparre, M., 20 Oct 2013, In : Astrophysical Journal. 776, 2, 98.

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. 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 journalJournal articleResearchpeer-review

  15. Published

    Magnified or multiply imaged? - Search strategies for gravitationally lensed supernovae in wide-field surveys

    Wojtak, Radoslaw Jan, Hjorth, Jens & Gall, Christa, 1 Aug 2019, In : Monthly Notice of the Royal Astronomical Society. 487, 3, p. 3342-3355

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. Published

    Gravitational redshift of galaxies in clusters as predicted by general relativity

    Wojtak, R., Hansen, Steen Harle & Hjorth, Jens, 28 Aug 2011, In : Nature. 477, 7366, p. 567-569

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. Published

    Statistical Mechanics of Collisionless Orbits. IV. Distribution of Angular Momentum

    Williams, L. L. R., Hjorth, Jens & Wojtak, Radoslaw Jan, 1 Mar 2014, In : Astrophysical Journal. 783, 1, 10 p., 13.

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. 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 journalJournal articleResearchpeer-review

  19. Published

    Collisionless dynamics in globular clusters

    Williams, L. R., Barnes, E. I. & Hjorth, Jens, 1 Jul 2012, In : Monthly Notices of the Royal Astronomical Society. 423, 4, p. 3589-3600

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. 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 journalJournal articleResearchpeer-review

  21. 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, Johan Peter Uldall, de Ugarte Postigo, A., Wijers, R., Castro-Tirado, A., Guziy, S., Hornstrup, A., Hjorth, Jens, Jelínek, M., Jensen, B., Kidger, M., Martin-Luis, F., Tanvir, N., Tristam, P. & Vreeswijk, P. M., 2008, In : Astronomy & Astrophysics. 481, 2, p. 319-326 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  22. Published

    Detailed optical and near-infrared polarimetry, spectroscopy and broad-band photometry of the afterglow of GRB 091018: polarization evolution

    Wiersema, K., Curran, P. A., Krühler, T. C., Melandri, A., Rol, E., Tanvir, N. R., van der Horst, A. J., Covino, S., Fynbo, Johan Peter Uldall, Goldoni, P., Gorosabel, J., Hjorth, Jens & Ugarte Postigo, A. D., 1 Oct 2012, In : Monthly Notices of the Royal Astronomical Society. 426, 1, p. 2-22 20 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    Circular polarization in the optical afterglow of GRB 121024A

    Wiersema, K., Covino, S., Toma, K., Horst, A. J. V. D., Varela, K., Min, M., Greiner, J., Starling, R. L. C., Tanvir, N. R., Wijers, R. A. M. J., Campana, S., Curran, P. A., Fan, Y., Fynbo, Johan Peter Uldall, Gorosabel, J., Gomboc, A., Gotz, D., Hjorth, Jens, Jin, Z. P., Kobayashi, S., Kouveliotou, C., Mundell, C., O'Brien, P. T., Pian, E., Rowlinson, A., Russell, D. M., Salvaterra, R., Alighieri, S. D. S., Tagliaferri, G., Vergani, S. D., Elliott, J., Farina, C., Hartoog, O. E., Karjalainen, R., Klose, S., Knust, F., Levan, A. J., Schady, P., Sudilovski, V. & Willingale, R., 2 Oct 2014, In : Nature. 509, p. 201-204 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  24. Published

    GRB 021004: steepening of the optical decay slope

    Weidinger, M., Egholm, M. P., Fynbo, Johan Peter Uldall, Thomsen, B., Møller, P., Hjorth, Jens, Pedersen, H., Jakobsson, P. & Jensen, B. L., 2002, In : GRB Circular Network. 1573, p. 1

    Research output: Contribution to journalJournal articleResearch

  25. Published

    GRB 030429: redshift of neighbor galaxy

    Weidinger, M., Fynbo, Johan Peter Uldall, Hjorth, Jens, Gorosabel, J., Klose, S. & Tanvir, N., 2003

    Research output: Other contributionResearch

  26. Published

    GRB 030429: redshift from VLT spectroscopy

    Weidinger, M., Fynbo, Johan Peter Uldall, Hjorth, Jens, Gorosabel, J., Vreeswijk, P. M. & Klose, S., 2003

    Research output: Other contributionResearch

  27. Published

    A Nearby Gamma-Ray Burst Host Prototype for z ~ 7 Lyman-break Galaxies: Spitzer-IRS and X-shooter Spectroscopy of the Host Galaxy of GRB 031203

    Watson, Darach Jafar, French, J. S., Hjorth, Jens, Malesani, D., Fynbo, Johan Peter Uldall & Castro Cerón, J. M., 1 Nov 2011, In : Astrophysical Journal. 741, 1, p. 58

    Research output: Contribution to journalJournal articleResearchpeer-review

  28. Published

    Massive star-formation rates of gamma-ray burst host galaxies: an unobscured view in X-rays

    Watson, Darach Jafar, Hjorth, Jens, Pedersen, K., Patel, S. & Kouveliotou, G., 2004, In : Astronomy & Astrophysics. 425, p. L33-L36

    Research output: Contribution to journalJournal articleResearchpeer-review

  29. Published

    A very low luminosity X-ray flash: XMM newton observations of GRB 031203

    Watson, Darach Jafar, Hjorth, Jens & Pedersen, K., 2004, In : Astrophysical Journal. 605, p. L-101-L104

    Research output: Contribution to journalJournal articleResearchpeer-review

  30. 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 journalJournal articleResearchpeer-review

  31. Published

    A nearby GRB host prototype for z~7 Lyman-break galaxies: Spitzer-IRS and X-shooter spectroscopy of the host galaxy of GRB031203

    Watson, Darach Jafar, Christensen, L., O'Halloran, B., French, J. S., Michalowski, M., Hjorth, Jens, Malesani, D., Fynbo, Johan Peter Uldall, Castro Cerón, J. M., Covino, S. & Reinfrank, R., 1 Nov 2011, In : Astrophysical Journal. 741, 1, p. 58

    Research output: Contribution to journalJournal articleResearchpeer-review

  32. Published

    Helium in natal HII regions: the origin of the X-ray absorption in gamma-ray burst afterglows

    Watson, Darach Jafar, Zafar, T., Andersen, Anja C., Fynbo, Johan Peter Uldall, Gorosabel, J., Hjorth, Jens, Jakobsson, P., Krühler, T. C., Laursen, P., Leloudas, G. & Malesani, D., 2013, In : Astrophysical Journal. 768, 1, 23.

    Research output: Contribution to journalJournal articleResearchpeer-review

  33. Published

    The X-ray spectrum and fightcurve of the redshift 6.29 gamma-ray burst GRB 050904

    Watson, Darach Jafar, Reeves, J., Hjorth, Jens, Fynbo, Johan Peter Uldall, Jakobsson, P., Pedersen, K., Sollerman, J. O., Castro Cerón, J. M., McBreen, S. & Foley, S., 2006, AIP Conference Proceedings vol.836. 16th Annual Astrophysics ConferenceWashington, DC, NOV 29-DEC 02, 2005NASA, Goddard Space Flight Ctr; Univ Maryland; Gen Dynam. American Institute of Physics, Vol. 836. p. 582-585

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  34. Published

    Women lose out in young investigator awards [1]

    Watson, Darach Jafar, Andersen, Anja C. & Hjorth, Jens, 14 Jul 2005, In : Nature. 436, 7048, 1 p.

    Research output: Contribution to journalLetterResearchpeer-review

  35. Published

    Denmark: Women's grants lost in inequality ocean

    Watson, Darach Jafar & Hjorth, Jens, 12 Mar 2015, In : Nature. 519, 7542, p. 158-158

    Research output: Contribution to journalJournal articleResearchpeer-review

  36. Published

    Outshining the quasars at reionization: the X-ray spectrum and light curveof the redshift 6.29 gamma-ray burst GRB 050904

    Watson, Darach Jafar, Reeves, J. N., Hjorth, Jens, Fynbo, Johan Peter Uldall, Jakobsson, P., Pedersen, K., Sollerman, J. O., Castro Cerón, J. M., McBreen, S. & Foley, S., 2006, In : Astrophysical Journal. 637, 2, p. L69-L72

    Research output: Contribution to journalJournal articleResearchpeer-review

  37. Published

    Are short gamma-ray bursts collimated? GRB 050709, a flare but no break

    Watson, Darach Jafar, Hjorth, Jens, Jakobsen, P., Xu, D., Fynbo, Johan Peter Uldall, Sollerman, J. O., Thöne, C. & Pedersen, K., 2006, In : Astronomy & Astrophysics. 454, p. L123-L126

    Research output: Contribution to journalJournal articleResearchpeer-review

  38. Published

    Delayed soft X-ray esission lines in the afterglow of GRB 030227

    Watson, Darach Jafar, Reeves, J. N., Hjorth, Jens, Jakobsson, P. & Pedersen, K., 2003, In : Astrophysical Journal. 595, 1, p. 29-32

    Research output: Contribution to journalJournal articleResearchpeer-review

  39. Published

    SN 2003jd (SN/GRB?) -- X-ray observations

    Watson, Darach Jafar, Pian, E., Reeves, J. N., Hjorth, Jens & Pedersen, K., 2003

    Research output: Other contributionResearch

  40. Published

    The soft X-ray blast in the apparently subluminous GRB 031203

    Watson, Darach Jafar, Vaughan, S. A., Willingale, R., Hjorth, Jens, Foley, S., Fynbo, Johan Peter Uldall, Jakobsson, P., Levan, A., O'Brian, P. T., Osborne, J. P., Pedersen, K., Reeves, J. N., Tedds, J. A. & Watson, M. G., 2006, In : Astrophysical Journal. 636, 2, p. 967-970

    Research output: Contribution to journalJournal articleResearchpeer-review

  41. Published

    A log NHI = 22.6 damped lyα absorber in a dark gamma-ray burst: The environment of GRB 050401

    Watson, Darach Jafar, Fynbo, Johan Peter Uldall, Ledoux, C., Vreeswijk, P., Hjorth, Jens, Smette, A., Andersen, Anja C., Aoki, K., Augusteijn, T., Beardmore, A. P., Bersier, D., Castro Cerón, J. M., D'Avanzo, P., Diaz-Fraile, D., Gorosabel, J., Hirst, P., Jakobsson, P., Jensen, B. L., Kawai, N., Kosugi, G., Laursen, P., Levan, A., Masegosa, J., Näränen, J., Page, K. L., Pedersen, K., Pozanenko, A., Reeves, J. N., Rumyantsev, V., Shahbaz, T., Sharapov, D., Sollerman, J. O., Starling, R. L. C., Tanvir, N., Torstensson, K. & Wiersema, K., 2006, In : Astrophysical Journal. 652, 2, p. 1011-1019

    Research output: Contribution to journalJournal articleResearchpeer-review

  42. Published

    GRB 080913: VLT redshift

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

    Research output: Other contributionResearch

  43. Published

    VLT spectroscopy of the probable host of GRB 021211

    Vreeswijk, P. M., Fruchter, A., Hjorth, Jens & Kouveliotou, C., 2003

    Research output: Other contributionResearch

  44. Published

    VLT/FORS2 spectra og GRB 030323

    Vreeswijk, P. M., Wijers, R. A. M. J., Rol, E. & Hjorth, Jens, 2003

    Research output: Other contributionResearch

  45. Published

    Low-resolution VLT spectroscopy of GRBs 991216, 011211 and 021211

    Vreeswijk, P. M., Smette, A., Fruchter, A. S., Palazzi, E., Rol, E., Wijers, R. A. M. J., Kouveliotou, C., Kaper, L., Pian, E., Masetti, N., Frontera, F., Hjorth, Jens, Gorosabel, J., Piro, L., Fynbo, Johan Peter Uldall, Jakobsson, P., Watson, Darach Jafar, O'Brian, P. T. & Ledoux, C., 2006, In : Astronomy & Astrophysics. 447, p. 145-156

    Research output: Contribution to journalJournal articleResearchpeer-review

  46. Published

    Damped Lyman Alpha (DLA) systems in GRB afterglows: probing dense regions in GRB host galaxies

    Vreeswijk, P., Ellison, S., Ledoux, C., Wijers, R. A. M. J., Hjorth, Jens & The Grace Collaboration, 2005, Astronomical Society of the Pacific Conference Series, vol.344: The Cool Universe: Observing Cosmic Dawn. 344 ed. p. 79-

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  47. Published

    Damed LY alpha systems in GRB afterglow

    Vreeswijk, P., Ellision, S., Ledoux, C., Hjorth, Jens & Fynbo, Johan Peter Uldall, 2004, AIP Conference Proceedings. American Institute of Physics, Vol. 727. p. 435-457

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  48. Published

    GRB 030725: optical observations

    Vinter, C., Jorgensen, S., Gorosabel, J., Hjorth, Jens, Jensen, B. L. & Fynbo, Johan Peter Uldall, 2003

    Research output: Other contributionResearch

  49. Published

    X-shooter, the new wide band intermediate resolution spectrograph at the ESO Very Large Telescope

    Vernet...[et al.], J., Dekker, H., D'Odorico, S., Rasmussen, P. K., Hjorth, Jens, Ugarte Postigo, A. D., Andersen, M. I. & Ugarte Postigo, A. D., 19 Dec 2011, In : Astronomy & Astrophysics. 536, p. A105

    Research output: Contribution to journalJournal articleResearchpeer-review

  50. Published

    GRB 091127/SN 2009nz and the VLT/X-shooter spectroscopy of its host galaxy: probing the faint end of the mass-metallicity relation

    Vergani...[et al.], S. D., Flores, H., Fugazza, D., Ugarte Postigo, A. D., Fynbo, Johan Peter Uldall, Malesani, D., Thöne, C., Hjorth, Jens, Milvang-Jensen, Bo & Sollerman, J. O., 30 Nov 2011, In : Astronomy & Astrophysics. 535, p. A127

    Research output: Contribution to journalJournal articleResearchpeer-review

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