Monitoring Supergiant Fast X-ray Transients with Swift. Results from the first year (2009)
Romano, P., Sidoli, L., Cusumano, G., La Parola, V., Vercellone, S., Pagani, C., ...
Swift has allowed the possibility to give Supergiant Fast X-ray Transients (SFXTs), the new class of High Mass X-ray Binaries discovered by INTEGRAL, non serendipitous attention throughout all phases...
The Palermo Swift-BAT Hard X-ray Catalogue. II- Results after 39 months of sky survey (2009)
Cusumano, G., La Parola, V., Segreto, A., Mangano, V., Ferrigno, C., Maselli, A., ...
We present the Palermo Swift-BAT hard X-ray catalogue obtained from the analysis of the the data relative to the first 39 months of the Swift mission. We have developed a dedicated software to...
Sidoli, L., Romano, P., Ducci, L., Paizis, A., Cusumano, G., Mangano, V., ...
We report on new X-ray outbursts observed with Swift from three Supergiant Fast X-ray Transients (SFXTs): XTEJ1739-302, IGRJ17544-2619 and IGRJ08408-4503. The former two outbursts were caught during...
Romano, P., Sidoli, L., Cusumano, G., Vercellone, S., Mangano, V., Krimm, H. A.
IGR J11215-5952 is a hard X-ray transient discovered in 2005 April by INTEGRAL and a member of the new class of HMXB, the Supergiant Fast X-ray Transients (SFXTs). While INTEGRAL and RXTE...
Swift and Supergiant Fast X-ray Transients: a novel monitoring approach (2009)
Romano, P., Sidoli, L., Mangano, V., Kennea, J. A., Cusumano, G., Vercellone, S., ...
We describe our monitoring strategy which best exploits the sensitivity and flexibility of Swift to study the long-term behaviour of Supergiant Fast X-ray Transients (SFXTs). We present observations...
Orsini, S., Di Lellis, A. M., Milillo, A., De Angelis, E., Mura, A., Selci, S., ...
The neutral sensor ELENA (Emitted Low-Energy Neutral Atoms) for the ESA cornerstone BepiColombo mission to Mercury (in the SERENA instrument package) is a new kind of low energetic neutral atoms...
Space Weathering on Near-Earth Objects investigated by neutral-particle detection (2008)
Plainaki, C., Milillo, A., Orsini, S., Mura, A., De Angelis, E., Di Lellis, A. M., ...
The ion-sputtering (IS) process is active in many planetary environments in the Solar System where plasma precipitates directly on the surface (for instance, Mercury, Moon, Europa). In particular,...
Sidoli, L., Romano, P., Cusumano, G., Mangano, V., Vercellone, S., Paizis, A., ...
Supergiant Fast X-ray Transients (SFXTs) are a sub-class of High Mass X-ray Binaries (HMXBs) associated with OB supergiant companions and displaying transient X-ray activity. This behaviour is quite...
Sidoli, L., Romano, P., Mangano, V., Cusumano, G., Vercellone, S., Kennea, J. A., ...
IGR J17544-2619 and XTE J1739-302 are considered the prototypical sources of the new class of High Mass X-ray Binaries, the Supergiant Fast X-ray Transients (SFXTs).These sources were observed during...
The 2008 May burst activation of SGR 1627-41 (2008)
Esposito, P., Israel, G. L., Zane, S., Senziani, F., Starling, R. L. C., Rea, N., ...
In May 2008 the soft gamma-ray repeater SGR 1627-41 resumed its bursting activity after nearly a decade of quiescence. After detection of a bright burst, Swift pointed its X-ray telescope in the...
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...
The 2008 May burst activation of SGR 1627–41 (2008)
Esposito, P., Israel, G.L., Zane, S., Senziani, F., Starling, R.L.C., Rea, N., ...
In 2008 May, the soft gamma-ray repeater (SGR) SGR 1627-41 resumed its bursting activity after nearly a decade of quiescence. After detection of a bright burst, Swift pointed its X-ray telescope in...
Gomboc, A., Kobayashi, S., Guidorzi, C., Melandri, A., Mangano, V., Sbarufatti, B., ...
We present a detailed study of the prompt and afterglow emission from Swift GRB 061126 using BAT, XRT, UVOT data and multicolor optical imaging from 10 ground-based telescopes. GRB 061126 was a long...
Swift detection of the second period derivative in the timing evolution of SGR0501+4516 (2008)
Israel, G.L., Woods, P., Dall'Osso, S., Esposito, P., Rea, N., Kouveliotou, C., ...
The Swift satellite has been monitoring SGR0501+4516 (ATel #1676, #1677, #1678, #1682, #1683, #1688, #1691, #1692 and #1824) since the first burst detected by the BAT on board Swift on 22nd August...
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...
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...
Sidoli, L., Romano, P., Mereghetti, S., Paizis, A., Vercellone, S., Mangano, V., ...
(ABRIDGED)- The physical mechanism responsible for the short outbursts in a recently recognized class of High Mass X-ray Binaries, the Supergiant Fast X-ray Transients (SFXTs), is still unknown. Two...
Swift Observations of GRB 051109B (2007)
Troja, E., Cusumano, G., LaParola, V., Mangano, V., Mineo, T.
We present Swift observations of GRB 051109B, a soft long burst triggered by the Burst Alert Telescope (BAT). The soft photon index of the prompt emission suggest it is a X-ray Flash (XRF) or, at...
Rest frame light curves of Swift GRBs (2007)
Mangano, V., La Parola, V., Troja, E., Cusumano, G., Mineo, T., Burrows, D., ...
We have computed the luminosity rest frame light curves of the first 40 Gamma-ray bursts (GRBs) detected by Swift with well established redshift. We studied average properties of the light curves in...
Pile-up correction for the Swift-XRT observations in WT mode (2007)
Mineo, T., Romano, P., Mangano, V., Moretti, A., Cusumano, G., La Parola, V., ...
The detector at the focal plane of the Swift X-ray Telescope (XRT) supports four readout modes, automatically changed on board, to cover the dynamical range of fluxes and rapid variability expected...
The short GRB 051210 observed by Swift (2007)
La Parola, V., Mangano, V., Zhang, B., Cusumano, G., Mineo, T., Troja, E., ...
We report on the short GRB051210 detected by the Swift-BAT. The light curve, on which we focus mainly, shows a hint of extended emission in the BAT energy range, a steep decay of the X-ray emission,...
Swift GRBs: the early afterglow spectral energy distribution (2007)
Tagliaferri, G., Malesani, D., Vergani, S. D., Campana, S., Chincarini, G., Covino, S., ...
We present the first results of a program to systematically study the optical-to-X-ray spectral energy distribution (SED) of Swift GRB afterglows with known redshift. The goal is to study the...
Attributes of flares in Gamma Ray Bursts: sample I (2007)
Chincarini, G., Moretti, A., Romano, P., Falcone, A. D., Campana, S., Covino, S., ...
We discuss some of the preliminary results and findings derived from the analysis of a first sample of flares detected by the XRT on board Swift. The analysis shows that the morphology of flares is...
X-ray Flares in Early GRB Afterglows (2007)
Burrows, D. N., Falcone, A., Chincarini, G., Morris, D., Romano, P., Hill, J. E., ...
The Swift X-ray Telescope (XRT) has discovered that flares are quite common in early X-ray afterglows of Gamma-Ray Bursts (GRBs), being observed in roughly 50% of afterglows with prompt followup...
GRB 070311: a direct link between the prompt emission and the afterglow (2007)
Guidorzi, C., Vergani, S. D., Sazonov, S., Covino, S., Malesani, D., Molkov, S., ...
Panchromatic study of GRB 060124: from precursor to afterglow (2006)
Romano, P., Campana, S., Chincarini, G., Cummings, J., Cusumano, G., Holland, S. T., ...
We present observations of GRB 060124, the first event for which both the prompt and the afterglow emission could be observed simultaneously and in their entirety by the three Swift instruments and...
Long-term monitoring of the X-ray afterglow of GRB 050408 with Swift/XRT (2006)
Capalbi, M., Malesani, D., Perri, M., Giommi, P., Covino, S., Cusumano, G., ...
We present observations of the X-ray afterglow of GRB 050408, a gamma-ray burst discovered by HETE-II. Swift began observing the field 42 min after the burst, performing follow-up over a period of 38...
Gehrels, N., Norris, J. P., Mangano, V., Barthelmy, S. D., Burrows, D. N., Granot, J., ...
Gamma ray bursts (GRBs) are known to come in two duration classes, separated at ~2 s. Long bursts originate from star forming regions in galaxies, have accompanying supernovae (SNe) when near enough...
Swift observations of GRB050904: the most distant cosmic explosion ever observed (2006)
Cusumano, G., Mangano, V., Chincarini, G., Panaitescu, A., Burrows, D. N., La Parola, V., ...
Swift discovered the high redshift (z=6.29) GRB050904 with the Burst Alert Telescope (BAT) and began observing with its narrow field instruments 161 s after the burst onset. This gamma-ray burst is...
Antonelli, L. A., Testa, V., Romano, P., Guetta, D., Torii, K., Elia, V. D, ...
Context. GRB050721 was detected by Swift and promptly followed-up, in the X-ray by Swift itself and, in the optical band, by the VLT operated, for the first time, in rapid response mode. A...
GRB051210: Swift detection of a short gamma ray burst (2006)
La Parola, V., Mangano, V., Fox, D., Zhang, B., Krimm, H. A., Cusumano, G., ...
The short/hard GRB051210 was detected and located by the Swift-BAT instrument and rapidly pointed towards by the narrow field instrumens. The XRT was able to observe a bright X-ray afterglow, one of...
The Anomalous Early Afterglow of GRB 050801 (2006)
Rykoff, E.S., Aharonian, F., Akerlof, C. W., Mangano, V., Ashley, M. C. B., Güver, T., ...
The ROTSE-IIIc telescope at the HESS site, Namibia, obtained the earliest detection of optical emission from a gamma-ray burst (GRB), beginning only 21.8 s from the onset of Swift GRB 050801. The...
The early X-ray emission from GRBs (2006)
O'Brien, Paul T., Willingale, R., Osborne, Julian P., Goad, Michael R., Page, Kim L., Vaughan, Simon A., ...
The Giant X-ray Flare of GRB 050502B: Evidence for Late-Time Internal Engine Activity (2005)
Falcone, A. D., Burrows, D. N., Lazzati, D., Campana, S., Kobayashi, S., Zhang, B., ...
Until recently, X-ray flares during the afterglow of gamma ray bursts (GRBs) were a rarely detected phenomenon, thus their nature is unclear. During the afterglow of GRB 050502B, the largest X-ray...
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...
Swift observations of the X-ray bright GRB 050315 (2005)
Vaughan, S., Goad, M. R., Beardmore, A. P., O'Brien, P. T., Osborne, J. P., Page, K. L., ...
This paper discusses Swift observations of the gamma-ray burst GRB 050315 (z=1.949) from 80 s to 10 days after the onset of the burst. The X-ray light curve displayed a steep early decay (t^-5) for...
A short gamma-ray burst apparently associated with an elliptical galaxy at redshift z = 0.225 (2005)
Sarazin, C L, O'Brien, P T, Zhang, B, Barthelmy, S D, ...
Gamma-ray bursts (GRBs) come in two classes: long (> 2 s), soft-spectrum bursts and short, hard events. Most progress has been made on understanding the long GRBs, which are typically observed at...
Evidence for a Canonical GRB Afterglow Light Curve in the Swift/XRT Data (2005)
Nousek, J. A., Kouveliotou, C., Grupe, D., Page, K., Granot, J., Ramirez-Ruiz, E., ...
We present new observations of the early X-ray afterglows of the first 27 gamma-ray bursts (GRBs) detected with the Swift X-ray Telescope (XRT). The early X-ray afterglows show a canonical behavior,...
Bright X-ray Flares in Gamma-Ray Burst Afterglows (2005)
Burrows, D. N., Romano, P., Falcone, A., Kobayashi, S., Zhang, B., Moretti, A., ...
Gamma-ray burst (GRB) afterglows have provided important clues to the nature of these massive explosive events, providing direct information on the nearby environment and indirect information on the...
GRB 050306: Confirmation of X-ray afterglow (2005)
Mangano, V., Cusumano, G., Mineo, T., Perri, M., Giommi, P., Capalbi, M., ...
Swift detection of GRB 050319 (2005)
Krimm, H., Still, M., Barthelmy, S., Barbier, L., Campana, S., Capalbi, M., ...
GRB050318: Swift XRT position (2005)
Nousek, J. A., Morris, D. C., Burrows, D. N., Grupe, D., Chester, M., Meszaros, P., ...
In-flight calibration of the Swift XRT point spread function (2005)
Moretti, Alberto, Campana, Sergio, Mineo, T., Romano, Patrizia, Abbey, A. F., Angelini, L., ...
In-flight calibration of the SWIFT XRT effective area (2005)
Romano, P., Cusumano, G., Campana, S., Mangano, V., Moretti, A., Abbey, A. F., ...