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19932026
most citedThe Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission

4.1k citations

Showing 2003Show all

33 papers · 1 filter

astro-ph2003★ 82 cited

XMM-Newton and VLT observations of the isolated neutron star 1E 1207.4-5209

A. De Luca, S. Mereghetti, P. A. Caraveo +3

In August 2002, XMM-Newton devoted two full orbits to the observation of 1E 1207.4-5209, making this isolated neutron star the most deeply scrutinized galactic target of the missio…

astro-ph2003★ 82 cited

Is there a hard tail in the Coma Cluster X-ray spectrum?

Mariachiara Rossetti, Silvano Molendi

We report results from a re-analysis of the BeppoSAX observation of Coma and from the analysis of a second, yet unpublished observation of the same object. From our re-analysis of…

astro-ph2003★ 52 cited

The VIRMOS deep imaging survey: III. ESO/WFI deep U-band imaging of the 0226-04 deep field

M. Radovich, M. Arnaboldi, V. Ripepi +14

In this paper we describe the U-band imaging of the F02 deep field, one of the fields in the VIRMOS Deep Imaging Survey. The observations were done at the ESO/MPG 2.2m telescope at…

astro-ph2003

Observing the high redshift universe using the VIMOS-IFU

S. Foucaud, M. Scodeggio, A. Zanichelli +2

We describe the advantages of using Integral Field Spectroscopy to observe deep fields of galaxy. The VIMOS Integral Field Unit is particularly suitable for this kind of studies th…

astro-ph2003★ 401 cited

The 2-8 keV cosmic X-ray background spectrum as observed with XMM-Newton

Andrea De Luca, Silvano Molendi

We have measured the spectrum of the Cosmic X-ray Background (CXB) in the 2-8 keV range with the high throughput EPIC/MOS instrument onboard XMM-Newton. A large sample of high gala…

astro-ph2003★ 212 cited

On the Iron content in rich nearby Clusters of Galaxies

Sabrina De Grandi, Stefano Ettori, Marcella Longhetti +1

In this paper we study the iron content of a sample of 22 nearby hot clusters observed with BeppoSAX. We find that the global iron mass of clusters is tightly related to the cluste…

astro-ph2003★ 109 cited

The spectra of short Gamma-Ray Bursts

G. Ghirlanda, G. Ghisellini, A. Celotti

We present the results of the spectral analysis of a sample of short bright --ray bursts (GRB) detected by BATSE and compare them with the average and time resolved spectral pro…

astro-ph2003★ 19 cited

GRB 030227: the first multiwavelength afterglow of an INTEGRAL GRB

A. J. Castro-Tirado, J. Gorosabel, S. Guziy +39

We present multiwavelength observations of a gamma-ray burst detected by INTEGRAL (GRB 030227) between 5.3 hours and ~1.7 days after the event. Here we report the discovery of a di…

astro-ph2003★ 69 cited

The variable quiescence of Cen X-4

S. Campana, G. L. Israel, L. Stella +2

Cen X-4 is one of the best studied low-mass neutron star transients in quiescence. Thanks to XMM-Newton large throughput, Cen X-4 was observed at the highest signal to noise ever.…

astro-ph2003

The XMM-Newton hard band wide angle Survey

N. Carangelo, S. Molendi, the Hellas2XMM collaboration

We present the preliminary findings of our XMM-Newton Survey performed in the hard band [7-11] keV. The survey covers nearly 30 squares degrees for a total of 112 fields observed.…

astro-ph2003★ 9 cited

GRB 021219: the first Gamma-Ray Burst localized in real time with IBAS

S. Mereghetti, D. Gotz, V. Beckmann +5

On December 19, 2002, during the Performance and Verification Phase of INTEGRAL, a Gamma-Ray Burst (GRB) has been detected and localized in real time with the INTEGRAL Burst Alert…

astro-ph2003★ 10 cited

Integral results on GRB030320: a long gamma-ray burst detected at the edge of the field of view

A. von Kienlin, V. Beckmann, S. Covino +9

GRB030320 is the 5th Gamma-ray burst (GRB) detected by INTEGRAL in the field of view (FoV). It is so far the GRB with the largest off-axis angle with respect to the INTEGRAL pointi…

astro-ph2003★ 140 cited

The Integral Burst Alert System (IBAS)

S. Mereghetti, D. Gotz, J. Borkowski +2

We describe the INTEGRAL Burst Alert System (IBAS): the automatic software for the rapid distribution of the coordinates of the Gamma-Ray Bursts detected by INTEGRAL. IBAS is imple…

astro-ph2003★ 352 cited

The INTEGRAL Science Data Centre (ISDC)

T. J. -L. Courvoisier, R. Walter, V. Beckmann +17

The INTEGRAL Science Data Centre (ISDC) provides the INTEGRAL data and means to analyse them to the scientific community. The ISDC runs a gamma ray burst alert system that provides…

astro-ph2003★ 29 cited

Unveiling the Nature of the 321 s Modulation in RX J0806.3+1527: Near-Simultaneous Chandra and VLT Observations

G. L. Israel, S. Covino, L. Stella +7

We report on the first near-simultaneous X-ray and optical observations of RX J0806.3+1527. The source is believed to be a 321s orbital period ultra-compact binary system hosting a…

astro-ph2003★ 8 cited

Multi-object spectroscopy of low redshift EIS clusters. II

L. F. Olsen, L. Hansen, H. E. Joergensen +3

We present the results of carrying out multi-object spectroscopy in 10 EIS cluster fields. Based on the list of 345 galaxy redshifts we identify significant 3D-density enhancements…

astro-ph2003★ 61 cited

The Canada-France deep fields survey-II: Lyman-break galaxies and galaxy clustering at z~3

S. Foucaud, H. J. McCracken, O. Le Fevre +5

(abridged) We present a large sample of z~3 U- band dropout galaxies extracted from the Canada-France deep fields survey (CFDF). Our catalogue covers an effective area of ~1700 arc…

astro-ph2003★ 13 cited

GRB021125: the first GRB imaged by INTEGRAL

G. Malaguti, A. Bazzano, V. Beckmann +12

In the late afternoon of November 25, 2002 a gamma-ray burst (GRB) was detected in the partially coded field of view (about 7.3 deg from the centre) of the imager IBIS on board the…

astro-ph2003★ 7 cited

Observation of GRB 030131 with the INTEGRAL satellite

D. Gotz, S. Mereghetti, K. Hurley +13

A long Gamma-Ray Burst (GRB) was detected with the instruments on board the INTEGRAL satellite on January 31 2003. Although most of the GRB, which lasted 150 seconds, occurre…

astro-ph2003★ 3 cited

Time resolved spectroscopy of GRB030501 using INTEGRAL

V. Beckmann, J. Borkowski, T. J. -L. Courvoisier +7

The Gamma-ray instruments on-board INTEGRAL offer an unique opportunity to perform time resolved analysis on GRBs. The imager IBIS allows accurate positiioning of GRBs and broad ba…

astro-ph2003★ 38 cited

Black hole masses and the Fundamental Plane of BL Lac objects

R. Falomo, J. K. Kotilainen, N. Carangelo +1

We report on measurements of the stellar velocity dispersion (sigma) from the optical spectra of the host galaxies of four BL Lac objects. Together with our earlier results on seve…

astro-ph2003★ 16 cited

The 2001 April Burst Activation of SGR 1900+14: Pulse Properties and Torque

P. M. Woods, C. Kouveliotou, E. Gogus +10

We report on observations of SGR 1900+14 made with the Rossi X-ray Timing Explorer (RXTE) and BeppoSAX during the April 2001 burst activation of the source. Using these data, we me…

astro-ph2003★ 33 cited

The 2001 April Burst Activation of SGR 1900+14: X-ray afterglow emission

M. Feroci, S. Mereghetti, P. Woods +8

After nearly two years of quiescence, the soft gamma-ray repeater SGR 1900+14 again became burst-active on April 18 2001, when it emitted a large flare, preceded by few weak and so…

astro-ph2003★ 26 cited

Search for the Optical Counterpart of the Vela Pulsar X-ray Nebula

R. P. Mignani, A. De Luca, O. Kargaltsev +4

Observations of the Vela pulsar region with the Chandra X-ray observatory have revealed the fine structure of its synchrotron pulsar-wind nebula (PWN), which showed an overall simi…