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| INTEGRAL Announcement of Opportunity for AO-8 Cycle Observations Proposals |
| Dear Colleague,
I am very pleased to invite you to respond to the 8th "Announcement of Opportunity" by submitting proposals for observations to be performed with the International Gamma-ray Astrophysics Laboratory (INTEGRAL) satellite. |
| Date: 15 Mar 2010 |
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| Mission extensions approved for science missions |
| ESA's Science Programme Committee has approved the extension of mission operations for XMM-Newton, INTEGRAL, Venus Express, Mars Express and Cluster, as well as the ESA support to the operations of HST and SOHO, until 31 December 2012. An additional year of operations has been approved for Planck. |
| Date: 07 Oct 2009 |
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| Galactic positron annihilation: not a signal of dark matter? |
| INTEGRAL's all-sky map of the 511 keV line emission has been used to conclude that dark matter is not the origin of galactic positron annihilation, contrary to what had been assumed in past years. In a recent paper published in Physical Review Letters Richard Lingenfelter and colleagues argue that no exotic sources are required to explain the spatial and spectral features observed by INTEGRAL. |
| Date: 22 Jul 2009 |
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| At last! After 10 years a new Soft Gamma Repeater is observed |
| Detailed observations of the first new Soft Gamma Repeater in 10 years strengthen the unified view of the magnetar phenomenon; the INTEGRAL and XMM-Newton target of opportunity programmes played a fundamental role in obtaining these successful observations of SGR 0501+4516. This is reported by Nanda Rea and colleagues in an article in the MNRAS published online on 15 June 2009. |
| Date: 16 Jun 2009 |
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| INTEGRAL sees variable polarization from GRB041219A |
| The polarization of gamma-ray photons encodes information about the environment in which they were produced, and as such is an important element in the theoretical understanding of the physics of gamma-ray sources. In an article to appear in the Astrophysical Journal Letters, Diego Götz and colleagues from CEA/SAp Saclay, APC and IAP Paris report the detection of modulated polarization from the strongest Gamma-Ray Burst (GRB) detected by INTEGRAL to date. |
| Date: 03 Apr 2009 |
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| Magnetar observed during outburst thanks to rapid response of INTEGRAL |
| The quick turn-around time of the INTEGRAL operation teams has enabled rare high-energy observations of a magnetar. The observations, which were performed as a Target of Opportunity, followed indications late last week that this magnetar, the Anomalous X-ray Pulsar, 1E 1547.0-5408, had entered outburst mode.
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| Date: 27 Jan 2009 |
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| First light curve analysis of 20 eclipsing binaries with INTEGRAL's OMC |
| Photometric data gathered by INTEGRAL's Optical Monitoring Camera (OMC) has been used to study selected eclipsing binary stars for which the light curve had hitherto not been analyzed. This recent study by Petr Zasche (Astronomical Institute, Charles University in Prague) provides new key information on the basic properties of these binary systems - properties that were previously not known or only estimated with low precision. |
| Date: 19 Jan 2009 |
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| INTEGRAL Announcement of Opportunity for AO-7 Cycle Observations Proposals |
Dear Colleague,
I am very pleased to invite you to respond to the 7th "Announcement of Opportunity" by
submitting proposals for observations to be performed with the International Gamma-ray
Astrophysics Laboratory (INTEGRAL) satellite. |
| Date: 12 Jan 2009 |
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| New model promises to unify view of magnetars |
| A recent model of the emission from ultra-magnetized neutron stars (magnetars) shows great promise in offering a unified view of the high energy emission from these objects. This is reported by Nanda Rea and colleagues in a recent issue of the Astrophysical Journal. The results are based on the systematic analysis of data collected with XMM-Newton and INTEGRAL. |
| Date: 14 Nov 2008 |
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| INTEGRAL confirms distinct, low-luminosity population of gamma-ray bursts |
| An analysis of the 47 gamma-ray bursts detected by INTEGRAL since its launch reveals a previously unnoticed population of faint gamma-ray bursts associated with the local supergalactic structure. |
| Date: 13 Oct 2008 |
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| INTEGRAL detects signature of critical cosmic accelerator |
| Polarized photons provide an insight into the nature and energies of the particles that radiated them; this in turn gives us a handle on the nature of the acceleration processes at work in cosmic sources. INTEGRAL's detection of polarized gamma-rays from the Crab pulsar, reported by Dean and colleagues in the 29 August issue of Science, has significant implications for many aspects of high-energy accelerators. |
| Date: 29 Aug 2008 |
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| Caught in the act: Hercules X-1 spins up while INTEGRAL is watching |
| In spite of being one of the longest known and most studied X-ray sources, Hercules X-1 continues to intrigue astronomers. A recent report describing observations conducted with INTEGRAL confirms the picture of a complex emission pattern from this source, and for the first time shows the pulsar accelerating. |
| Date: 17 Jun 2008 |
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| INTEGRAL Announcement of Opportunity for AO-6 Cycle Observation Proposals and for Obtaining Data Rights to Targets within Previously Approved Key Programmes |
| Dear Colleague, I am very pleased to invite you to respond to the sixth "Announcement of Opportunity" by submitting proposals for observations to be performed with the international Gamma-ray Astrophysics laboratory (INTEGRAL) satellite or for obtaining data rights to targets within the previously approved Key Programmes. |
| Date: 10 Mar 2008 |
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| Eta Carinae in Hard X-rays |
| Eta Carinae is a complex binary system, at a distance of around 8000 light years, with a large nebulosity surrounding the central objects. Observations with INTEGRAL have confirmed the nature of hard X-ray emission from the region to be from inverse compton scattered photons accelerated in a region where two stellar winds collide. |
| Date: 20 Feb 2008 |
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| INTEGRAL Mission Extension Approved |
| At their 12-13 November meeting, ESA's Science Programme Committee has unanimously approved an extension for the INTEGRAL mission which pushes back the mission end date from 16 December 2010 to 31 December 2012. |
| Date: 15 Nov 2007 |
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| Five Years of INTEGRAL |
| The launch of INTEGRAL five years ago, on 17 October 2002, heralded a new era in gamma-ray observatories. Utilising solid-state detectors and coded mask imaging techniques, INTEGRAL was unlike any previous gamma-ray mission. |
| Date: 17 Oct 2007 |
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| HESS J1616-508 Likely Powered by Young Pulsar PSR J1617-5055 |
| By combining X-ray and gamma ray observations from the INTEGRAL, XMM-Newton, Swift and BeppoSAX satellites, a group of astronomers have identified a very likely source of power for the bright TeV source HESS J1616-508. The data covers the sky around HESS J1616-508 that contains several sources detected at X-ray and gamma ray energies, none of which however were as yet firmly identified as a counterpart for the bright TeV source. |
| Date: 09 Aug 2007 |
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| INTEGRAL detection of Galactic 60Fe gamma-ray line emission |
| By combining observations made during a period of two and a half years with the SPI instrument onboard INTEGRAL, a team headed by Roland Diehl has obtained the most significant detection to date of the 60Fe isotope in our Galaxy through its gamma-ray line emission. |
| Date: 25 Jun 2007 |
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| INTEGRAL Announcement of Opportunity for AO-5 Cycle Observation Proposals and for Obtaining Data Rights to Targets within Previously Approved Key Programmes |
| Dear Colleague,
I am very pleased to invite you to respond to the 5th Announcement of Opportunity by submitting proposals for observations to be performed with the International Gamma-ray Astrophysics Laboratory (INTEGRAL) satellite or for obtaining data rights to targets within the previously approved Key Programmes. |
| Date: 12 Mar 2007 |
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| Two open positions at the ISDC |
Two positions are open at the ISDC [Versoix, Switzerland] for
- High-energy astrophysicist
- Post doctoral high-energy astrophysicist
Applications for both positions should be preferably made before 1 November |
| Date: 23 Oct 2006 |
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