Darach Jafar Watson

2014

The mysterious optical afterglow spectrum of GRB140506A at z=0.889

Fynbo, J. P. U., Kruehler, T., Leighly, K., Ledoux, C., Vreeswijk, P. M., Schulze, S., Noterdaeme, P., Watson, D., Wijers, R. A. M. J., Bolmer, J., Cano, Z., D'Elia, V., Covino, S., Christensen, L. B., Flores, H., Friis, M., Goldoni, P., Greiner, J., Hammer, F., Hjorth, J., & 23 othersJakobsson, P., Japelj, J., Kaper, L., Klose, S., Knust, F., Leloudas, G., Levan, A., Malesani, D., Milvang-Jensen, B., Moller, P., Guelbenzu, A. N., Oates, S., Pian, E., Schady, P., Sparre, M., Tagliaferri, U., Tanvir, N., Thoene, C. C., de Ugarte Postigo, A., Vergani, S., Wiersema, K., Xu, D. & Zafar, T., 1 Dec 2014, In: Astronomy & Astrophysics. 572, 8 p., A12.

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

32 Citations (Scopus)

Ultraviolet emission lines in young low-mass galaxies at z similar or equal to 2: physical properties and implications for studies at z > 7

Stark, D. P., Richard, J., Siana, B., Charlot, S., Freeman, W. R., Gutkin, J., Wofford, A., Robertson, B., Amanullah, R., Watson, D. & Milvang-Jensen, B., 5 Sept 2014, In: Monthly Notices of the Royal Astronomical Society. 445, 3, p. 3200-3220

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

131 Citations (Scopus)

VLT/X-shooter spectroscopy of the GRB 120327A afterglow

D'Elia, V., Fynbo, J. P. U., Goldoni, P., Covino, S., Postigo, A. D. U., Ledoux, C., Calura, F., Gorosabel, J., Malesani, D., Sanchez-Ramirez, F. M. R., Savaglio, S., Castro-Tirado, A. J., Hartoog, O. E., Kaper, L., Munoz-Darias, T., Pian, E., Piranomonte, S., Tagliaferri, G., Tanvir, N., Vergani, S. D., & 2 othersWatson, D. J. & Xu, D., Apr 2014, In: Astronomy & Astrophysics. 564, p. 38-56 18 p.

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

39 Citations (Scopus)

2013

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, J., Malesani, D., Fynbo, J. P. U., Jakobsson, P., Kaper, L., Sollerman, J. O., Watson, D. J., Thöne, C., Milvang-Jensen, B. & Sparre, M., 20 Oct 2013, In: Astrophysical Journal. 776, 2, 98.

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

86 Citations (Scopus)

GRB 100219A with X-shooter - abundances in a galaxy at z = 4.7

Thöne, C. C., Fynbo, J. P. U., Ugarte Postigo, A. D., Campana, S., Zafar, T., Vergani, S. D., Covino, S., Krühler, T. C., Milvang-Jensen, B., Watson, D. J. & Kaper, L., 1 Jan 2013, In: Monthly Notices of the Royal Astronomical Society. 428, 4, p. 3590-3606

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

49 Citations (Scopus)

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

Watson, D. J., Zafar, T., Andersen, A. C., Fynbo, J. P. U., Gorosabel, J., Hjorth, J., Jakobsson, P., Krühler, T. C., Laursen, P., Leloudas, G. & Malesani, D., 1 May 2013, In: Astrophysical Journal. 768, 1, 23.

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

36 Citations (Scopus)

Molecular hydrogen in the damped Lyman alpha system towards GRB 120815A at z=2.36

Krühler, T., Ledoux, C., Fynbo, J. P. U., Vreeswijk, P. M., Schmidl, S., Malesani, D., Christensen, L. B., De Cia, A., Hjorth, J., Jakobsson, P., Kann, D. A., Kaper, L., Vergani, S. D., Afonso, P. M. J., Covino, S., de Ugarte Postigo, A., D'Elia, V., Filgas, R., Goldoni, P., Greiner, J., & 16 othersHartoog, O. E., Milvang-Jensen, B., Nardini, M., Piranomonte, S., Rossi, A., Sánchez-Ramírez, R., Schady, P., Schulze, S., Sudilovsky, V., Tanvir, N. R., Tagliaferri, G., Watson, D. J., Wiersema, K., Wijers, R. A. M. J., Xu, D. & Leloudas, G., 1 Sept 2013, In: Astronomy & Astrophysics. 557, A18.

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

62 Citations (Scopus)

On inferring extinction laws in z ~ 6 quasars as signatures of supernova dust

Hjorth, J., Vreeswijk, P. M., Gall, C. & Watson, D., 10 May 2013, In: The Astrophysical Journal. 768, 2, 173.

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

19 Citations (Scopus)

The metals-to-dust ratio to very low metallicities using GRB and QSO absorbers; extremely rapid dust formation

Zafar, T. & Watson, D., 2 Dec 2013, In: Astronomy & Astrophysics. 560, A26.

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

57 Citations (Scopus)

THERMAL EMISSION IN THE EARLY X-RAY AFTERGLOWS OF GAMMA-RAY BURSTS: FOLLOWING THE PROMPT PHASE TO LATE TIMES

Friis, M. & Watson, D. J., 1 Jul 2013, In: Astrophysical Journal. 771, 1, 15.

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

28 Citations (Scopus)

2012

Dust Extinction Bias in the Column Density Distribution of Gamma-Ray Bursts: High Column Density, Low-redshift GRBs are More Heavily Obscured

Watson, D. J. & Jakobsson, P., 1 Aug 2012, In: Astrophysical Journal. 754, 2, p. 89

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

25 Citations (Scopus)

Star formation in the early Universe: beyond the tip of the iceberg

Tanvir, N. R., Levan, A. J., Fruchter, A. S., Fynbo, J. P. U., Hjorth, J., Wiersema, K., Bremer, M. N., Rhoads, J., O'Brien, P. T. & Watson, D. J., 20 Jul 2012, In: Astrophysical Journal. 754, 1, p. 46

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

94 Citations (Scopus)

The dark GRB 080207 in an extremely red host and the implications for gamma-ray bursts in highly obscured environments

Svensson, K. M., Levan, A. J., Tanvir, N. R., Perley, D. A., Michalowski, M., Page, K. L., Bloom, J. S., Cenko, S. B., Hjorth, J., Jakobsson, P., Watson, D. J. & Wheatly, P. J., 1 Mar 2012, In: Monthly Notices of the Royal Astronomical Society. 421, 1, p. 25-35 10 p.

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

40 Citations (Scopus)

The metal-enriched host of an energetic ¿-ray burst at z ˜ 1.6

Krühler, T. C., Fynbo, J. P. U., Geier, S. J., Hjorth, J., Malesani, D., Milvang-Jensen, B., Sparre, M., Watson, D. J. & Zafar, T., 2012, In: Astronomy & Astrophysics. 546, p. A8

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

The metal-enriched host of an energetic gamma-ray burst at z approximate to 1.6

Krühler, T. C., Fynbo, J. P. U., Geier, S. J., Hjorth, J., Malesani, D., Milvang-Jensen, B., Levan, A. J., Sparre, M., Watson, D. J. & Zafar, T., 1 Oct 2012, In: Astronomy & Astrophysics. 546, p. A8

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

38 Citations (Scopus)

The optically unbiased GRB host (TOUGH) survey. I. Survey design and catalogs

Hjorth, J., Malesani, D., Fynbo, J. P. U., Krühler, T. C., Milvang-Jensen, B., Michalowski, M., Watson, D. J. & Jakobsson..[et al.], P., 10 Sept 2012, In: Astrophysical Journal. 756, 2, p. 187

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

139 Citations (Scopus)

The optically unbiased GRB host (TOUGH) survey. V. VLT/X-shooter emission-line redshifts for Swift GRBs at z~2

Krühler, T. C., Malesani, D., Milvang-Jensen, B., Fynbo, J. P. U., Hjorth, J., Sparre, M. & Watson, D. J., 10 Oct 2012, In: Astrophysical Journal. 758, 1, p. 46

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

56 Citations (Scopus)

The Optically Unbiased GRB Host (TOUGH) Survey. V. VLT/X-shooter Emission-line Redshifts for Swift GRBs at z ~ 2

Krühler, T. C., Malesani, D., Milvang-Jensen, B., Fynbo, J. P. U., Hjorth, J., Jakobsson, P., Levan, A., Sparre, M., Tanvir, N. R. & Watson, D. J., 10 Oct 2012, In: Astrophysical Journal. 758, 1, p. 46

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

56 Citations (Scopus)

The optically unbiased GRB host (TOUGH) survey. VI. Radio observations at z < 1 and consistency with typical star-forming galaxies

Michalowski...[et al.], M., Hjorth, J., Malesani, D., Castro Cerón, J. M., Fynbo, J. P. U., Sollerman, J. O. & Watson, D. J., 20 Aug 2012, In: Astrophysical Journal. 755, 2, p. 85

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

68 Citations (Scopus)

The properties of the 2175 angstrom extinction feature discovered in GRB afterglows

Zafar, T., Watson, D. J., Elíasdóttir, Á., Fynbo, J. P. U., Krühler, T. C., Schady, P., Leloudas, G., Jakobsson, P., Thöne, C., Perley, D. A., Bloom, J. & Greiner, J., 1 Jul 2012, In: Astrophysical Journal. 753, 1, p. 82

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

52 Citations (Scopus)

The stellar masses and specific star-formation rates of submillimetre galaxies

Michalowski, M. J., Dunlop, J. S., Cirasuolo, M., Hjorth, J., Hayward, C. C. & Watson, D. J., 1 May 2012, In: Astronomy & Astrophysics. 541, p. A85

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

128 Citations (Scopus)

Using Quasars as Standard Candles for Studying Dark Energy

Denney, K. D., Vestergaard, M., Watson, D. & Davis, T., 1 Jan 2012, In: American Astronomical Society, AAS Meeting #219, #440.20. 219

Research output: Contribution to journal › Journal article › Research

2011

A highly magnified supernova at z = 1.703 behind the massive galaxy cluster A1689

Amanullah...[et al.], R., Goobar, A., Clement, B., Hjorth, J., Milvang-Jensen, B. & Watson, D. J., 20 Nov 2011, In: The Astrophysical Journal Letters. 742, 1, p. L7

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

18 Citations (Scopus)

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..[et al.], D. J., French, J. S., Hjorth, J., Malesani, D., Fynbo, J. P. U. & Castro Cerón, J. M., 1 Nov 2011, In: Astrophysical Journal. 741, 1, p. 58

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

19 Citations (Scopus)

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

Watson, D. J., Christensen, L., O'Halloran, B., French, J. S., Michalowski, M., Hjorth, J., Malesani, D., Fynbo, J. P. U., Castro Cerón, J. M., Covino, S. & Reinfrank, RF., 1 Nov 2011, In: Astrophysical Journal. 741, 1, p. 58

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

19 Citations (Scopus)

A New Cosmological Distance Measure Using Active Galactic Nuclei

Watson, D. J., Denney, K. D., Vestergaard, M. & Davis, T. M., 20 Oct 2011, In: Astrophysical Journal. 740, 2, p. L49

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

83 Citations (Scopus)

Exploring Dust Extinction at the Edge of Reionization

Zafar, T., Watson, D. J., Tanvir, N. R., Fynbo, J. P. U., Starling, R. L. C. & Levan, A. J., 1 Jul 2011, In: Astrophysical Journal. 735, 1

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

26 Citations (Scopus)

Spectroscopic Evidence for SN 2010ma Associated with GRB 101219B

Sparre....[et al.], M., Sollerman, J. O., Fynbo, J. P. U., Malesani, D., Ugarte Postigo, A. D., Hjorth, J., Leloudas, G., Milvang-Jensen, B. & Watson, D. J., 1 Jul 2011, In: Astrophysical Journal. 735, 1

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

57 Citations (Scopus)

The extinction curves of star-forming regions from z = 0.1 to 6.7 using GRB afterglow spectroscopy

Zafar, T., Watson, D. J., Fynbo, J. P. U., Malesani, D., Jakobsson, P. & Ugarte Postigo, A. D., 8 Sept 2011, In: Astronomy & Astrophysics. 532, p. A143

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

102 Citations (Scopus)

The Galactic dust-to-metals ratio and metallicity using gamma-ray bursts

Watson, D. J., 18 Sept 2011, In: Astronomy & Astrophysics. 533, p. A16

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

73 Citations (Scopus)

The metallicity of gamma-ray burst environments from high-energy observations

Watson, D. J. & Laursen, P., Mar 2011, In: Astronomy & Astrophysics. 527, p. A104

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

3 Citations (Scopus)

2010

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

Michalowski, M., Hjorth, J. & Watson, D. J., 28 May 2010, In: Astronomy & Astrophysics. 514, p. A67 51 p.

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

178 Citations (Scopus)

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

Michalowski, M., Murphy, E., Hjorth, J., Watson, D. J., 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

88 Citations (Scopus)

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...[et al.], J. P. U., Malesani, D., Vreeswijk, P. M., Hjorth, J., Sollerman, J. O., Thöne, C., Maund, J. R., Milvang-Jensen, B., Watson, D. J. & 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

1 Citation (Scopus)

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

Zafar, T., Watson, D. J., Malesani, D., Vreeswijk, P. M., Fynbo, J. P. U., Hjorth, J., 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

39 Citations (Scopus)

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

Castro Cerón, J. M., Michalowski, M., Hjorth, J., Malesani, D., Gorosabel, J., Watson, D. J., Fynbo, J. P. U. & Calderon, C. M., 1 Oct 2010, In: Astrophysical Journal. 721, 2, p. 1919-1927 8 p.

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

51 Citations (Scopus)

Rapid Dust Production in Submillimeter Galaxies at z > 4?

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

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

114 Citations (Scopus)

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, D., Castro Cerón, J. M., Fynbo, J. P. U., Hjorth, J., Laursen, P., Sollerman, J. O. & Watson, D. J., 10 Sept 2010, In: Astrophysical Journal. 720, 2, p. 1513-1558 5 p.

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

233 Citations (Scopus)

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

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

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

44 Citations (Scopus)

2009

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

Tanvir, N. R., Fox, D. B., Levan, A. J., Fynbo, J. P. U., Hjorth, J., Sollerman, J. O. & Watson, D. J., 2009, In: Nature. 461, 7268, p. 1254-1257 3 p.

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

478 Citations (Scopus)

Current problems in extragalactic dust

Watson, D. J., Andersen, A. C. & Fynbo, J. P. U., 2009.

Research output: Contribution to conference › Conference abstract for conference › Research

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

Elíasdóttir, Á., Fynbo, J. P. U., Hjorth, J., Ledoux, C., Watson, D. J., Andersen, A. C., Malesani, D., 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

120 Citations (Scopus)

Early spectroscopic identification of SN 2008D

Malesani...[et al.], D., Fynbo, J. P. U., Hjorth, J., Leloudas, G., Vreeswijk, P. M., Watson, D. J., 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

52 Citations (Scopus)

Galaksernes oprindelse og universets " dark ages "

Fynbo, J. P. U., Andersen, A. C., Hansen, S. H., Pedersen, K., Sollerman, J. O. & Watson, D. J., 2009, In: Naturens Verden. 1, p. 26-33

Research output: Contribution to journal › Journal article › Communication

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 othersMészáros, 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, J., Jehin, E., Levan, A. J., Liang, E. W., Malesani, D., Pyo, T-S., 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

189 Citations (Scopus)

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

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

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

53 Citations (Scopus)

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

Fynbo...[et al.], J. P. U., Jakobsson, P., Malesani, D., Vreeswijk, P. M., Hjorth, J., Sollerman, J. O., Jensen, B. L., Milvang-Jensen, B., Watson, D. J. & 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

300 Citations (Scopus)

Mørkt stof - vi ved så meget og dog så lidt

Hansen, S. H., Pedersen, K., Sollerman, J. O., Andersen, A. C., Fynbo, J. P. U., Hjorth, J., Toft, S. & Watson, D. J., 2009, In: Kvant. 2, p. 14-17 3 p.

Research output: Contribution to journal › Journal article › Communication

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, J., Malesani, D., Michalowski, T., María Castro Cerón, J., Reinfrank, R. F., Garrett, M. A., Fynbo, J. P. U., Watson, D. J. & Jørgensen, U. G., 2009, In: Astrophysical Journal. 693, 1, p. 347-354

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

44 Citations (Scopus)

2008

GRB 070306: a highly extinguished afterglow

Jaunsen, A. O., Rol, E., Watson, D. J., Malesani, D., Ovaldsen, J. -E., Fynbo, J. P. U., Milvang-Jensen, B., Hjorth, J., 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

63 Citations (Scopus)

Darach Jafar Watson

Research output

Search results