A big γ-ray burst at a redshift of z ≈ 8.2 (2009)
Tanvir, N. R., Fox, D. B., Levan, A. J., Berger, E., Wiersema, K., Fynbo, J. P. U., ...
4 pages, 3 figures.-- ArXiv pre-print available at: http://arxiv.org/abs/0906.1577
A γ-ray burst at a redshift of z ≈ 8.2 (2009)
Tanvir, N. R., Fox , D. B., Levan, A. J., Berger, E., Wiersema, K., Fynbo, J. P. U., ...
Long-duration γ-ray bursts (GRBs) are thought to result from the explosions of certain massive stars, and some are bright enough that they should be observable out to redshifts of z > 20 using...
Multiwavelength observations of a TeV-Flare from W Comae (2009)
Aliu, E., Aune, T., Beilicke, M., Benbow, W., Bottcher, M., ...
We report results from an intensive multiwavelength campaign on the intermediate-frequency-peaked BL Lacertae object W Com (z=0.102) during a strong outburst of very high energy gamma-ray emission in...
Berger, E., Cenko, S. B., Fox, D. B., Cucchiara, A.
[Abridged] We report the discovery of the near-infrared and optical afterglow of the short-duration gamma-ray burst GRB070724A. The afterglow is detected in i,J,H,K observations starting 2.3 hr after...
A glimpse of the end of the dark ages: the gamma-ray burst of 23 April 2009 at redshift 8.3 (2009)
Tanvir, N. R., Fox, D. B., Levan, A. J., Berger, E., Wiersema, K., Fynbo, J. P. U., ...
It is thought that the first generations of massive stars in the Universe were an important, and quite possibly dominant, source of the ultra-violet radiation that reionized the hydrogen gas in the...
Variability of low-luminosity AGNs: a simultaneous X-ray/UV look with Swift (2009)
Romano, P., Pian, E., Maoz, D., Cucchiara, A., Pagani, C., La Parola, V.
We present the results of an investigation of the X-ray and UV properties of four LINERs observed with Swift, aimed at constructing good S/N and strictly simultaneous UV-X-ray SEDs. In the current...
The redshift and afterglow of the extremely energetic gamma-ray burst GRB 080916C (2009)
Greiner, J., Clemens, C., Krühler, T., Von-Kienlin, A., Rau, A., Sari, R., ...
Context. The detection of GeV photons from gamma-ray bursts (GRBs) has important consequences for the interpretation and modelling of these most-energetic cosmological explosions. The full...
The redshift and afterglow of the extremely energetic gamma-ray burst GRB 080916C (2009)
Greiner, J., Clemens, C., Kruehler, T., Kienlin, A. V., Rau, A., Sari, R., ...
The detection of GeV photons from gamma-ray bursts (GRBs) has important consequences for the interpretation and modelling of these most-energetic cosmological explosions. The full exploitation of the...
The redshift and afterglow of the extremely energetic gamma-ray burst GRB 080916C (2009)
Greiner, J., Clemens, C., Krühler, T., Von Kienlin, A., Rau, A., Sari, R., ...
Cucchiara, A., Jones, T., Charlton, J. C., Fox, D. B., Einsig, D., Narayanan, A.
The startling discovery of Prochter et al. (2006) that the frequency of very strong (W_r(2796)>1 A) MgII absorbers along gamma-ray burst (GRB) lines of sight ([dN/dz]_{GRB} = 0.90) is more than three...
The First Swift Ultra-Violet/Optical Telescope GRB Afterglow Catalog (2008)
Roming, P. W. A., Koch, T. S., Oates, S. R., Porterfield, B. L., Berk, D. E. Vanden, Boyd, P. T., ...
We present the first Swift Ultra-Violet/Optical Telescope (UVOT) gamma-ray burst (GRB) afterglow catalog. The catalog contains data from over 64,000 independent UVOT image observations of 229 GRBs...
Romano, P., Guidorzi, C., Sidoli, L., Montanari, E., Capitanio, F., Amati, L., ...
During our Swift/XRT program to obtain X-ray positions at arcsecond level for a sample of Galactic X-ray binaries, we discovered that SAX J0840.7+2248 is not a binary, but rather BeppoSAX/WFC+GRBM...
GRB 080319B: A Naked-Eye Stellar Blast from the Distant Universe (2008)
Racusin, J. L., Karpov, S. V., Sokolowski, M., Granot, J., Wu, X. F., Pal'shin, V., ...
Long duration gamma-ray bursts (GRBs) release copious amounts of energy across the entire electromagnetic spectrum, and so provide a window into the process of black hole formation from the collapse...
The complex light-curve of the afterglow of GRB071010A (2008)
Covino, S., D'Avanzo, P., Klotz, A., Perley, D. A., Amati, L., Campana, S., ...
We present and discuss the results of an extensive observational campaign devoted to GRB071010A, a long-duration gamma-ray burst detected by the Swift satellite. This event was followed for almost a...
An extremely luminous X-ray outburst at the birth of a supernova (2008)
Soderberg, A. M., Berger, E., Page, K. L., Schady, P., Parrent, J., Pooley, D., ...
Massive stars end their short lives in spectacular explosions, supernovae, that synthesize new elements and drive galaxy evolution. Throughout history supernovae were discovered chiefly through their...
An extremely luminous X-ray outburst at the birth of a supernova (2008)
Soderberg, A. M., Berger, E., Page, K. L., Schady, P., Parrent, J., Pooley, D., ...
Broadband observations of the naked-eye y-ray burst GRB 080319B (2008)
Racusin, Judith L., Karpov, S. V., Sokolowski, M., Granot, Jonathan, Wu, Xiao Feng, Pal'shin, V., ...
Long-duration y-ray bursts (GRBs) release copious amounts of energy across the entire electromagnetic spectrum, and so provide a window into the process of black hole formation from the collapse of...
Broadband observations of the naked-eye gamma-ray burst GRB 080319B (2008)
Racusin, J.L., Karpov, S.V., Sokolowski, M., Granot, J., Wu, X.F., Pal'shin, V., ...
Long-duration gamma-ray bursts (GRBs) release copious amounts of energy across the entire electromagnetic spectrum, and so provide a window into the process of black hole formation from the collapse...
An extremely luminous X-ray outburst at the birth of a supernova (2008)
Soderberg, A.M., Berger, E., Page, K.L., Schady, P., Parrent, J., Pooley, D., ...
Massive stars end their short lives in spectacular explosions—supernovae—that synthesize new elements and drive galaxy evolution. Historically, supernovae were discovered mainly through their...
Broadband observations of the naked-eye y-ray burst GRB 080319B (2008)
Racusin, Judith L., Karpov, S. V., Sokolowski, M., Granot, Jonathan, Wu, Xiao Feng, Pal'shin, V., ...
Long-duration y-ray bursts (GRBs) release copious amounts of energy across the entire electromagnetic spectrum, and so provide a window into the process of black hole formation from the collapse of...
GRB070125: The First Long-Duration Gamma-Ray Burst in a Halo Environment (2007)
Cenko, S. B., Fox, D. B., Penprase, B. E., Cucchiara, A., Price, P. A., Berger, E., ...
We present the discovery and high signal-to-noise spectroscopic observations of the optical afterglow of the long-duration gamma-ray burst GRB070125. Unlike all previously observed long-duration...
Multifrequency Observations of the Blazar 3C 279 in January 2006 (2007)
Collmar, WEBT Collaboration: W., Böttcher, M., Krichbaum, T., Bottacini, E., Burwitz, V., Cucchiara, A., ...
We report first results of a multifrequency campaign from radio to hard X-ray energies of the prominent gamma-ray blazar 3C 279, which was organised around an INTEGRAL ToO observation in January...
Photometric Calibration of the Swift Ultraviolet/Optical Telescope (2007)
Poole, T. S., Breeveld, A. A., Page, M. J., Landsman, W., Holland, S. T., Roming, P., ...
We present the photometric calibration of the Swift UltraViolet/Optical Telescope (UVOT) which includes: optimum photometric and background apertures, effective area curves, colour transformations,...
A New Population of High-Redshift Short-Duration Gamma-Ray Bursts (2007)
Berger, E., Fox, D. B., Price, P. A., Nakar, E., Gal-Yam, A., Holz, D. E., ...
The redshift distribution of the short-duration gamma-ray bursts (GRBs) is a crucial, but currently fragmentary, clue to the nature of their progenitors. Here we present optical observations of nine...
Properties of a Gamma-Ray Burst Host Galaxy at z ~ 5 (2007)
Price, P. A., Songaila, A., Cowie, L. L., Bell Burnell, J., Berger, E., Cucchiara, A., ...
We describe the properties of the host galaxy of the gamma-ray burst GRB 060510B based on a spectrum of the burst afterglow obtained with the Gemini North 8 m telescope. The galaxy lies at a redshift...
The weak INTEGRAL bursts GRB040223 and GRB040624: an emerging population of dark afterglows (2007)
Filliatre, P., Covino, S., D'Avanzo, P., De Luca, A., Gotz, D., McGlynn, S., ...
We report here gamma-ray, X-ray and near-infrared observations of GRB040223 along with gamma-ray and optical observations of GRB040624. GRB040223 was detected by INTEGRAL close to the Galactic plane...
Properties of a Gamma Ray Burst Host Galaxy at z ~ 5 (2007)
Price, P. A., Songaila, A., Cowie, L. L., Burnell, J. Bell, Berger, E., Cucchiara, A., ...
We describe the properties of the host galaxy of the gamma-ray burst GRB060510B based on a spectrum of the burst afterglow obtained with the Gemini North 8m telescope. The galaxy lies at a redshift...
Simultaneous Swift and REM monitoring of the blazar PKS0537-441 in 2005 (2007)
Pian, E., Romano, P., Treves, A., Ghisellini, G., Covino, S., Cucchiara, A., ...
The blazar PKS0537-441 has been observed by Swift between the end of 2004 and November 2005. The BAT monitored it recurrently for a total of 2.7 Ms, and the XRT and UVOT pointed it on seven occasions...
Giommi, P., Capalbi, M., Cavazzuti, E., Colafrancesco, S., Cucchiara, A., Falcone, A., ...
Almost the totality of the bright foreground sources in the WMAP CMB maps are blazars, a class of sources that show usually also X-ray emission. However, 23 objects in a flux-limited sample of 140...
The frontier of darkness: the cases of GRB 040223, GRB 040422, GRB 040624 (2007)
D'Avanzo, P., Filliatre, P., Goldoni, P., A. Antonelli, L., Campana, S., Chincarini, G., ...
Understanding the reasons for the faintness of the optical/near-infrared afterglows of the so-called dark bursts is essential to assess whether they form a subclass of GRBs, and hence for the use of...
Multifrequency observations of the blazar 3C 279 in January 2006 (2007)
Collmar, W., Böttcher, M., Krichbaum, T., Bottacini, E., Burwitz, V., Cucchiara, A., ...
Swift ultraviolet photometry of the Deep Impact encounter with Comet 9P/Tempel 1 (2007)
Mason, K. O., Chester, M., Cucchiara, A., Gronwall, C., Grupe, D., Hunsberger, S, ...
A New Population of High Redshift Short-Duration Gamma-Ray Bursts (2006)
Berger, E., Fox, D. B., Price, P. A., Nakar, E., Gal-Yam, A., Holz, D. E., ...
The redshift distribution of the short-duration GRBs is a crucial, but currently fragmentary, clue to the nature of their progenitors. Here we present optical observations of nine short GRBs obtained...
Giommi, P., Blustin, A. J., Capalbi, M., Colafrancesco, S., Cucchiara, A., Fuhrmann, L., ...
We present the results of a series of Swift and quasi simultaneous ground-based infra-red observations of the blazar 3C 454.3 carried out in April-May 2005 when the source was 10 to 30 times brighter...
Swift panchromatic observations of the bright gamma‐ray burst GRB 050525a (2006)
Blustin, A.J., Band, D., Barthelmy, S., Boyd, P., Capalbi, M., Holland, S.T., ...
The bright gamma-ray burst GRB 050525a has been detected with the Swift observatory, providing unique multiwavelength coverage from the very earliest phases of the burst. The X-ray and optical/UV...
The frontier of darkness: the cases of GRB 040223, GRB 040422, GRB 040624 (2006)
D'Avanzo, P., Filliatre, P., Goldoni, P., Antonelli, L. A., Campana, S., Chincarini, G., ...
Understanding the reasons for the faintness of the optical/near-infrared afterglows of the so-called dark bursts is essential to assess whether they form a subclass of GRBs, and hence for the use of...
Swift-UVOT Observations of the X-Ray Flash 050406 (2006)
Schady, P., Mason, K. O., Osborne, J. P., Page, M. J., Roming, P. W. A., Still, M., ...
We present Swift-UVOT data on the optical afterglow of the X-ray flash of 2005 April 6 (XRF 050406) from 88s to \sim 10^5s after the initial prompt gamma-ray emission. Our observations in the V, B...
The frontier of darkness: the cases of GRB 040223, GRB 040422, GRB 040624 (2006)
D'Avanzo, P., Filliatre, P., Goldoni, P., A. Antonelli, L., Campana, S., Chincarini, G., ...
Understanding the reasons for the faintness of the optical/near-infrared afterglows of the so-called dark bursts is essential to assess whether they form a subclass of GRBs, and hence for the use of...
The frontier of darkness: the cases of GRB 040223, GRB 040422, GRB 040624 (2006)
D'Avanzo, P., Filliatre, P., Goldoni, P., A. Antonelli, L., Campana, S., Chincarini, G., ...
Understanding the reasons for the faintness of the optical/near-infrared afterglows of the so-called dark bursts is essential to assess whether they form a subclass of GRBs, and hence for the use of...
Swift and XMM-Newton observations of the dark GRB 050326 (2006)
Moretti, Alberto, De Luca, A., Malesani, D., Campana, Sergio, Tiengo, A., Cucchiara, A., ...
The definitive version of this paper is available from www.edpsciences.org/aa
GRB 060204A: Swift/UVOT observations (2006)
Cucchiara, A., Fox, D., Hunsberger, S., Retter, A., Nousek, J., Voges, W., ...
Swift and XMM observations of the dark GRB 050326 (2005)
Moretti, A., De Luca, A., Malesani, D., Campana, S., Tiengo, A., Cucchiara, A., ...
We present Swift and XMM observations of GRB 050326, detected by Swift-BAT. The fluence was 7.7x10^-6 erg cm^-2 (20-150 keV), and its spectrum was hard, with a power law photon index 1.25. The...
Fuhrmann, L., Cucchiara, A., Marchili, N., Tosti, G., Nucciarelli, G., Ciprini, S., ...
The flat-spectrum radio quasar 3C 454.3 is well known to be a highly active and variable source with outbursts occurring across the whole electromagnetic spectrum over the last decades. In spring...
The weak INTEGRAL bursts GRB040223 and GRB040624: an emerging population of dark afterglows (2005)
Filliatre, P., Covino, S., D'Avanzo, P., De Luca, A., Gotz, D., McGlynn, S., ...
We report here gamma-ray, X-ray and near-infrared observations of GRB040223 along with gamma-ray and optical observations of GRB040624. GRB040223 was detected by INTEGRAL close to the Galactic plane...
Very Early Optical Afterglows of Gamma-Ray Bursts: Evidence for Relative Paucity of Detection (2005)
Roming, P. W. A., Schady, P., Fox, D. B., Zhang, B., Liang, E., Mason, K. O., ...
Very early observations with the Swift satellite of gamma-ray burst (GRB) afterglows reveal that the optical component is not detected in a large number of cases. This is in contrast to the bright...
SN 2003lw and GRB 031203: A Bright Supernova for a Faint Gamma-ray Burst (2004)
Malesani, D., Tagliaferri, G., Chincarini, G., Covino, S., Della Valle, M., Fugazza, D., ...
Optical and near-infrared observations of the gamma-ray burst GRB 031203, at z = 0.1055, are reported. A very faint afterglow is detected superimposed to the host galaxy in our first infrared JHK...