Redundant variables and Granger causality (2009)
Angelini, L., De Tommaso, M., Marinazzo, D., Nitti, L., Pellicoro, M., Stramaglia, S.
We discuss use of multivariate Granger causality in presence of redundant variables: the application of the standard analysis, in this case, leads to under-estimation of causalities. Using the...
Comparing GC and Field LMXBs in Elliptical Galaxies with deep Chandra and Hubble data (2009)
Fabbiano, G., Brassington, N. J., Fragos, T., Kalogera, V., Zezas, A., ...
(abridged) We present a statistical study of the low-mass X-ray binary (LMXB) populations of three nearby, old elliptical galaxies: NGC 3379, NGC 4278, and NGC 4697. With a cumulative ~1 Ms Chandra...
Deep Chandra Monitoring Observations of NGC 4278: Catalog of Source Properties (2009)
Brassington, N. J., Fabbiano, G., Zezas, A., Zepf, S., Kundu, A., ...
We present the properties of the discrete X-ray sources detected in our monitoring program of the globular cluster (GC) rich elliptical galaxy, NGC 4278, observed with Chandra ACIS-S in six separate...
Transient Low-Mass X-Ray Binary Populations in Elliptical Galaxies NGC 3379 and NGC 4278 (2009)
Fragos, T., Kalogera, V., Willems, B., Belczynski, K., Fabbiano, G., Brassington, N. J., ...
We propose a physically motivated and self-consistent prescription for the modeling of transient neutron star (NS) low-mass X-ray binary (LMXB) properties, such as duty cycle (DC), outburst duration...
GRB polarimetry with POET (2009)
McConnell, M. L., Angelini, L., Baring, M. G., Barthelmy, S., Black, J. K., Bloser, P. F., ...
Evans, P. A., Beardmore, A. P., Page, K. L., Osborne, J. P., O'Brien, P. T., Willingale, R., ...
We present a homogeneous X-ray analysis of all 318 Gamma Ray Bursts detected by the X-ray Telescope on the Swift satellite up to 2008 July 23; this represents the largest sample of X-ray GRB data...
POET: POlarimeters for Energetic Transients (2008)
Hill, J. E., McConnell, M. L., Bloser, P., Legere, J., Macri, J., Ryan, J., ...
POET (Polarimeters for Energetic Transients) is a Small Explorer mission concept proposed to NASA in January 2008. The principal scientific goal of POET is to measure GRB polarization between 2 and...
Discovery of Hot Gas in Outflow in NGC3379 (2008)
Trinchieri, G., Pellegrini, S., Fabbiano, G., Fu, R., Brassington, N. J., Zezas, A., ...
We report the discovery of a faint (L_x ~ 4 10^37 erg/s, 0.5-2 keV), out-flowing gaseous hot interstellar medium (ISM) in NGC 3379. This represents the lowest X-ray luminosity ever measured from a...
Fragos, T., Kalogera, V., Belczynski, K., Fabbiano, G., Brassington, N. J., ...
We present theoretical models for the formation and evolution of populations of low-mass X-ray binaries (LMXB) in the two elliptical galaxies NGC 3379 and NGC 4278. The models are calculated with the...
Archival observations of the ultra-soft X-ray transient 4U 1630-47 (2007)
Parmar Williams Kuulkers, A. N. Parmar, O. R. Williams, E. Kuulkers, L. Angelini, N. E. White
. We report on archival observations of the ultra-soft X-ray transient 4U1630\Gamma47. In 1979 February, 1989 March, and 1994 September, 4U1630\Gamma47 was observed in outburst by the Einstein High...
Deep Chandra Monitoring Observations of NGC 3379: Catalog of Source Properties (2007)
Brassington, N. J., Fabbiano, G., Zezas, A., Zepf, S., Kundu, A., ...
We present the properties of the discrete X-ray sources detected in our monitoring program of the `typical' elliptical galaxy, NGC 3379, observed with Chandra ACIS-S in five separate pointings,...
The Dearth of low-luminosity Globular Cluster LMXBs in NGC 3379 (2007)
Fabbiano, G., Brassington, N. J., Zezas, A., Zepf, S., Angelini, L., Davies, R. L., ...
Our campaign of deep monitoring observations with {\it Chandra} of the nearby elliptical galaxy NGC 3379 has lead to the detection of nine globular cluster (GC) and 53 field low mass X-ray binaries...
The in-flight spectroscopic performance of the Swift XRT CCD camera during 2006-2007 (2007)
Godet, O., Beardmore, A. P., Abbey, A. F., Osborne, J. P., Page, K. L., Tyler, L., ...
The Swift X-ray Telescope focal plane camera is a front-illuminated MOS CCD, providing a spectral response kernel of 135 eV FWHM at 5.9 keV as measured before launch. We describe the CCD calibration...
Very deep X-ray observations of the Anomalous X-ray Pulsar 4U 0142+614 (2007)
Rea, N., Nichelli, E., Israel, G. L., Perna, R., Oosterbroek, T., Parmar, A. N., ...
We report on two new XMM-Newton observations of the Anomalous X-ray Pulsar (AXP) 4U 0142+614 performed in March and July 2004, collecting the most accurate spectrum for this source to date....
D'Elia, V., Fiore, F., Meurs, E., Chincarini, G., Melandri, A., Norci, L., ...
We analyze high resolution spectroscopic observations of the optical afterglow of GRB050730, obtained with UVES@VLT about hours after the GRB trigger. The spectrum shows that the ISM of the GRB host...
D'Elia, V., Fiore, F., Meurs, E., Chincarini, G., Melandri, A., Norci, L., ...
We analyze high resolution spectroscopic observations of the optical afterglow of GRB050730, obtained with UVES@VLT about hours after the GRB trigger. The spectrum shows that the ISM of the GRB host...
D'Elia, V., Fiore, F., Meurs, E., Chincarini, G., Melandri, A., Norci, L., ...
We analyze high resolution spectroscopic observations of the optical afterglow of GRB050730, obtained with UVES@VLT about hours after the GRB trigger. The spectrum shows that the ISM of the GRB host...
D'Elia, V., Fiore, F., Meurs, E.J.A., Chincarini, G., Melandri, A., Norci, Laura, ...
Aims. The aim of this paper is to study the Gamma Ray Burst (GRB) environment through the analysis of the optical absorption features due to the gas surrounding the GRB. Methods. To this purpose we...
D'Elia, V., Fiore, F., Meurs, E.J.A., Chincarini, G., Melandri, A., Norci, Laura, ...
Aims. The aim of this paper is to study the Gamma Ray Burst (GRB) environment through the analysis of the optical absorption features due to the gas surrounding the GRB. Methods. To this purpose we...
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...
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...
D'Elia, V., Fiore, F., Meurs, E., Chincarini, G., Melandri, A., Norci, L., ...
We analyze high resolution spectroscopic observations of the optical afterglow of GRB050730, obtained with UVES@VLT about hours after the GRB trigger. The spectrum shows that the ISM of the GRB host...
The association of GRB 060218 with a supernova and the evolution of the shock wave (2006)
Campana, S., Mangano, V., Blustin, A.J., Brown, P., Burrows, D.N., Chincarini, G., ...
Although the link between long -ray bursts (GRBs) and supernovae has been established, hitherto there have been no observations of the beginning of a supernova explosion and its intimate link to a...
Natural clustering: the modularity approach (2006)
Angelini, L., Marinazzo, D., Pellicoro, M., Stramaglia, S.
We show that modularity, a quantity introduced in the study of networked systems, can be generalized and used in the clustering problem as an indicator for the quality of the solution. The...
Probing the Low-Luminosity XLF in Normal Elliptical Galaxies (2006)
Fabbiano, G., Kalogera, V., King, A. R., Pellegrini, S., Trinchieri, G., ...
We present the first low luminosity (LX > 5 - 10 1036 erg s-1) X-ray luminosity functions (XLFs) of low-mass X-ray binaries (LMXBs) determined for two typical old elliptical galaxies, NGC 3379 and...
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...
Swift X-Ray Telescope Observations of the Deep Impact Collision (2006)
Willingale, R., O'Brien, P. T., Cowley, S. W. H., Jones, G. H., McComas, D. J., Mason, K. O., ...
GRB 060105: BAT refined analysis (2006)
Markwardt, C., Angelini, L., Barbier, L., Barthelmy, S., Cummings, J., Fenimore, E., ...
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...
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...
The Swift X-ray Telescope (2005)
Burrows, David N., Hill, J. E., Nousek, J. A., Kennea, J. A., Wells, A., Osborne, J. P., ...
The Swift Gamma-Ray Explorer is designed to make prompt multiwavelength observations of Gamma-Ray Bursts (GRBs) and GRB afterglows. The X-ray Telescope (XRT) enables Swift to determine GRB positions...
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...
Erratum: The Swift Gamma-Ray Burst Mission (2005)
Gehrels, N., Chincarini, G., Giommi, P., Mason, K. O., Nousek, J. A., Wells, A. A., ...
The Swift X-Ray Telescope (2005)
Burrows, David N., Hill, J. E., Nousek, J. A., Kennea, J. A., Wells, A., Osborne, J. P., ...
GRB 051006: XRT refined analysis (2005)
Capalbi, M., Perri, M., Kennea, J., Burrows, D. N., Morris, D., Angelini, L., ...
Swift/UVOT photometry of GRB050820 (2005)
Chester, M., Page, M., Roming, P., Marshall, F., Boyd, P., Angelini, L., ...
GRB 050603: Swift-BAT refined analysis of a long three-spiked burst (2005)
Fenimore, E., Angelini, L., Barbier, L., Barthelmy, S., Cummings, J., Gehrels, N., ...
GRB 051109: Swift-BAT refined analysis (2005)
Fenimore, E., Angelini, L., Barbier, L., Barthelmy, S., Cummings, J., Gehrels, N., ...
GRB 050730: XRT refined analysis (2005)
Perri, M., Capalbi, M., Giommi, P., Grupe, D., Burrows, D. N., Angelini, L., ...
GRB050712: Swift UVOT observation of afterglow emission (2005)
Poole, T., Grupe, D., Breeveld, A., Angelini, L., Greiner, J.
GRB 050813: Swift-BAT refined analysis (2005)
Sato, G., Angelini, L., Barbier, L., Barthelmy, S., Cummings, J., Fenimore, E., ...
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., ...
A short gamma-ray burst apparently associated with an elliptical galaxy at redshift z = 0.225 (2005)
Gehrels, N., Sarazin, C.L., O'Brien, P.T., Zhang, B., Barbier, L., Barthelmy, S.D., ...
Gamma-ray bursts (GRBs) come in two classes: long (> 2s), soft-spectrum bursts and short, hard events. Most progress has been made on understanding the long GRBs, which are typically observed at high...
SWIFT XRT Point Spread Function measured at the Panter end-to-end tests (2004)
Moretti, A., Campana, S., Tagliaferri, G., Abbey, A. F., Ambrosi, R. M., Angelini, L., ...
Swift XRT effective area measured at the Panter end-to-end tests (2004)
Tagliaferri, G., Moretti, A., Campana, S., Abbey, A. F., Ambrosi, R. M., Angelini, L., ...
The Swift gamma-ray burst mission (2004)
Gehrels, N., Chincarini, G., Giommi, P., Mason, K. O., Nousek, J. A., Wells, A. A., ...
A study of the variable anomalous X-ray pulsar 1RXS J170849-400910 using XMM-Newton data (2004)
Oosterbroek, T., Parmar, A. N., Rea, N., Israel, G. L., Stella, L., Mereghetti, S., ...
Multiwaveband studies of the hard ROSAT SMC transient 1WGA J0053.8-7226: a new X-ray pulsar (2001)
Buckley, D.A.H., Coe, M.J., Stevens, J.B., Angelini, L., White, N., ...
We report on two optical candidates for the counterpart to an X-ray source in the Small Magellanic Cloud, 1WGA J0053.8-7226, identified as a serendipitous X-ray source from the ROSAT Position...
It BeppoSAX monitoring of the ''anomalous'' x-ray pulsar 4U 0142+61 (1999)
Israel, G.L., Oosterbroek, T., Angelini, L., Campana, S., Mereghetti, S., Parmar, A.N., ...
ASCA and Ginga Observations of GX 1+4 (1999)
Kotani, T, Dotani, T, Nagase, F, Greenhill, JG, Pravdo, SH, Angelini, L
The Two-Layer Ising Film Correlation Length and Critical Curve by CLE and CVM Methods (1995)
L. Angelini, D. Caroppo, M. Pellicoro, M. Villani
This paper deals with a two-layer ferromagnetic film, made of two isotropic planes of Ising spins coupled by nearest neighbour interactions also along the vertical direction. The Hamiltonian of the...
The EXOSAT results database (1988)
Giommi, P., Parmar, A.N., White, N.E., Angelini, L., Barr, P., Haberl, F., ...
A Monte Carlo program for generating hadronic final states in electron-positron annihilations (1985)
Angelini, L., Nitti, L., Pellicoro, M., Preparata, G., Valenti, G.
Peer Reviewed
Focal lesion of the right cingulum: a case report in a child.
Angelini, L, Mazzucchi, A, Picciotto, F, Nardocci, N, Broggi, G
A body with a focal lesion of the right cingulum, subjected to cingulectomy for the removal of a tumour, is the first case of an isolated unilateral cingulum lesion to be reported. The presenting...