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INTEGRAL News archive for 2009
8th INTEGRAL Workshop "The Restless Gamma-ray Universe"
22 December 2009 The 8th INTEGRAL workshop "The Restless Gamma-ray Universe" will take place in Dublin Castle, Dublin, Ireland from 27 to 30 September 2010. The main goal of this workshop is to present and to discuss (via invited and contributed talks and posters) latest results obtained in the field of high energy astrophysics using the International Gamma-Ray Astrophysics Laboratory INTEGRAL, as well as results from related observations from other ground- and space-based high energy observatories. The first circular has been circulated early December.
Communications with ISOC
10 December 2009 The scientific community is reminded that concerning (e-mail) communication with the ISOC and/or the Project Scientist on all aspects of INTEGRAL science operations, including,e.g.
Feedback to INTEGRAL User's Group (IUG)
02 December 2009 Dear users of INTEGRAL,
ISOC Webserver maintenance
24 November 2009 Due to necessary hardware replacement, the ISOC Webserver will not be available on Thursday 26 November from 14:00 to 17:00 GMT approximately. This affects, among others, the INTEGRAL Observation Tools and the Integral Scheduling services, including the ToO Alert page. To notify ISOC of a possible TOO during this brief period, please just send a mail to the INTEGRAL Help Desk , which will not be affected by this maintenance. We are sorry for any inconvenience this activity may cause.
AO7 Programme subscription target allocations
27 October 2009 ISOC has prepared the final list of sources approved by the AO7 TAC from the Data Rights proposals to the accepted Open Time proposals. The list, ordered by right ascension as well as by principal investigator, can be found on the Target Lists page for AO-7. There you will also find links to the approved target pointings for AO7 as well as descriptions of the associated Open Time proposals.
16 October 2009 AO7 officially began today on Oct. 16 during revolution 856 (but AO7 observation of NGC 2110 and then the Mkn 509 observations coordinated with XMM-Newton were already started in 854 and 855). In revolution 856, both monitors of JEM-X will be operating, with a very low telemetry for JEM-X1 (put in a safe/dormant mode) to prepare the final switch from JEM-X1 to JEM-X2: from revolution 856 onwards, JEM-X2 will be the main instrument. Besides, the 14th SPI annealing is planned to last for 6 revolutions and will be done during revolutions 857 until 862. During that time, the SPI instrument will not deliver science data (except during revolution 862). Finally, for more information on the AO7 target fields as well as the accepted sources within the fields, we refer to the approved AO7 target lists and short and long-term planning usual webpages.
Winners of the INTEGRAL competition
08 October 2009 An INTEGRAL competition was run as part of the 'International Year of Astronomy, 100 Hours of Astronomy' cornerstone project, in which people around the world were given access to leading astronomical observatories. To celebrate this International Year of Astronomy, ESA organised a competition in which students were presented with data from INTEGRAL and asked to study the Galactic bulge, one of the most active regions at the heart of our Galaxy. Entrants were required to perform research tasks using data of variable X-ray sources. The tasks included interpreting the data, searching for evidence of variability and then writing a report on their research. The competition entries were judged by an expert panel comprising ESA scientists. Students from India and South Africa have been selected as the winners of the 'Be an INTEGRAL astronomer' competition. For more details, click here.
AO-7 Data Right Proposals approved
30 September 2009 The ESA Director of Science and Robotic Exploration (Prof. David Southwood) has approved the recommendation of the Time Allocation Committee (TAC) for proposals to obtain data rights to targets within AO-7 observations. The proposers have been informed about the TAC decision and about the detailed data rights obtained. An overview of successful proposals can be found here. An overview of the distributed sources and data right holders is being prepared.
High energy observations of the newly discovered burster millisecond pulsar IGR J17511-3057
18 September 2009 The transient source IGR J17511-3057 was discovered during INTEGRAL observations of the Galactic Bulge monitoring program (see ATel #2196). Subsequent observations of the Galactic Bulge and Center region allow to follow the transient's outburst in hard X-rays (see light curve below). A deeper insight into the source properties will be obtained during the TOO observations of the system in revolution 846 (16-19 Sep).
Upgrade of the Scientific Publications pages
15 September 2009 The web pages containing the INTEGRAL publications have been refurbished. There are now three lists:
GRB 090817 - a special Gamma-Ray Burst for INTEGRAL
18 August 2009 On 2009-08-17 at 2:51 a.m. (00:51 GMT) INTEGRAL caught another Gamma-Ray Burst (GRB) in the field of view of IBIS/ISGRI, like it does about ten times per year. But this one was special on several counts. Not only by its unusually long duration of ~250 seconds, but also by being only a few degrees off-axis and thus visible also for the JEM-X monitor. The combined INTEGRAL spectrum covers the whole range of a gamma-ray burst, from 3 keV to several hundreds of keV. Unfortunately, the OMC was unlucky again, with the burst being just outside its detector area. More details on this event are given by the ISDC. Other observations of this GRB are reported on the GCN site.
Upgrade of the ISOC Science Data Archive
04 August 2009 A new version of the ISOC Science Data Archive (ISDA), has been released and is available at http://integral.esac.esa.int/isda/.
AO-7 Data Right Proposals - preliminary results
10 July 2009 During the call for Data Right Proposals (deadline 3 July 2009) the ISOC system received 72 valid proposals, requesting 608 targets in total. As expected, the large majority of requests was for Compact Objects. Technical evaluation is ongoing, the Time Allocation Committee will decide on the proposals by early September.
ESA Research Fellowships in Space Science
10 July 2009 The European Space Agency awards several postdoctoral fellowships each year. The aim of these fellowships is to provide young scientists, holding a PhD or the equivalent degree, with the means of performing space science research in fields related to the ESA Science Programme. Fellowships can be undertaken at ESAC or ESTEC. For more information see the ESA Research Fellowship page and the ESAC Research Fellow Mentors page. The next deadline for application is 1 October 2009 for fellowships to begin in late 2010.
Research opportunities with ISOC science staff include the study of X-ray binaries, both black holes and neutron stars, e.g., their emission mechanisms, spectral properties, physics of accretion, activity timescales, X-ray bursts, etc, but also the Galactic Centre, especially Sgr A* and the Central Molecular Zone. For more information, please visit the personal research pages of Guillaume Bélanger, Marion Cadolle Bel, Erik Kuulkers, Peter Kretschmar and Celia Sanchez.
Mystery of Galactic annihilation-line emission solved?
8 July 2009 A team of astrophysicists may have solved a mystery that led some scientists to speculate that the distribution of certain gamma rays in our Milky Way galaxy was evidence of a form of undetectable "dark matter" believed to make up much of the mass of the universe. For more information see Integral disproves dark matter origin for mystery radiation or the UCSD Press Release.
The Extreme Sky: Sampling the Universe above 10 keV
29 May 2009 A workshop celebrating seven years of INTEGRAL will be held from 13-17 October 2009 at Castello Aragonese, Otranto (Lecce), Italy. A main focus of this workshop will be high-energy surveys from the keV to the TeV range, both from space missions and ground-based observatories, comparing and contrasting the results obtained in the various bands in the light of physical models. A dedicated section will also be devoted to discuss future mission ideas. More details can be found at http://www.iasf-roma.inaf.it/extremesky2009/.
INTEGRAL AO-7 Call for Data Right Proposals is open!
25 May 2009 Today, the Director of Science and Robotic Exploration (Prof. David Southwood) has released the 7th Announcement of Opportunity for data right proposals with INTEGRAL.
INTEGRAL AO-7 General Programme approved
22 April 2009 The INTEGRAL AO-7 General Programme, as recommended by the Time Allocation Committee (TAC) and approved on the 15th of April by the ESA Director of Science and Robotic Exploration (Prof. David Southwood), has been released and the observers have been informed.
Be an INTEGRAL astronomer - competition
08 April 2009 To mark the International Year of Astronomy ESA launched a special competition for students in secondary school and University undergraduates. They will use data taken by INTEGRAL to investigate objects in one of the most active regions of our Galaxy, the Galactic bulge. They have a chance to win a number of great prizes, including a trip to the European Space Astronomy Centre (ESAC) near Madrid, Spain. Deadline: 14 August 2009.
7th Announcement of Opportunity (AO-7) preliminary statistics
05 March 2009 The deadline (20 February 2009) for submission of INTEGRAL proposals for AO-7 open time observations is now a few days behind us. All proposals are in the ISOC database. Below are some preliminary statistics on the proposals that have been received.
Total number of proposals
The total number of proposals received was 76. The total observing time requested is about 107 Msec (for all types of observation, i.e. fixed time, normal time, and TOO). Here, 10% of the requested total TOO time has been taken into account. Given that up to about 29 Msec of observing time are available for the AO-7 observing programme (14.5 months duration starting on 16 October 2009), this corresponds to an oversubscription by a factor of about 3.7 (see details below). This is a high value, showing the continued high interest of the scientific community in the INTEGRAL mission.
Proposals per category
In the following table we give the breakdown of number of proposals as a function of the proposal category. Note that the numbers on requested observing times do include TOO proposals, but it has been assumed here, that a typical TOO proposal requests about 10% of its total observing time as entered into PGT from all the candidate sources included in a TOO proposal. The oversubscription, calculated as the ratio between total requested and total available observing time is 3.7.
The Time Allocation Committee, whose purpose is to peer review all proposals and recommend a scientific observing programme to ESA, will meet from March 23 - 25 at ESAC. Following this meeting, ESA will announce the approved programme for AO-7 of observations.
A second Call within this AO-7 will be released on 25 May, inviting proposals on individual point sources or selected sky areas (for diffuse emission studies) to be associated as "data-right proposals" with the selected observations, excluding TOO observations. The deadline for submission of data rights proposal is 03 July
Integral SPI detector failure
20 February 2009 On 19 February, following exit from a perigee passage, there appears to have been a failure of another SPI Ge detector (#5). This follows the losses of Ge #2 in December 2003 and and Ge #17 in July 2004. The MOC and instrument teams are still investigating the anomaly, but the chance of any recovery is slight. The previous two failures both occurred some weeks after annealing suggesting a possible link, but this is unlikely to be the case here since the last annealing finished in Sept 2008. The failure means that from the original 19 SPI detectors arranged in a hexagonal pattern we have 16 remaining.
ISOC temporarily unavailable due to maintenance work
19 February 2009 Due to a scheduled power outage at ESAC starting on the evening of Friday, 20 February the ISOC website will be down and the Target of Opportunity alert service will exceptionally be interrupted for the whole of the weekend up to 22 February. We regret any inconvenience caused by this unavoidable maintenance activity. The AO-7 proposal submission (deadline 13:00 GMT) will not be affected by this.
High energy observatories turn towards 1E 1547.0-5408
02 February 2009 INTEGRAL is not the only observatory having turned to the outburst of the magnetar 1E 1547.0-5408. A whole flight of high-energy observatories has scheduled observations in order to better understand this rare kind of source. The overview below is based on available schedule information and not necessarily complete. For details of the INTEGRAL observations see our scheduling pages.
7th INTEGRAL Workshop: Proceedings now coming online
01 February 2009 The proceedings of the 7th INTEGRAL Workshop are now starting to become available at the Proceedings of Science web site. The presentations for which a paper is available are marked with a little "pdf" symbol in red. There are now about forty papers available which have passed through the referee process. In total, ninety contributions have been received. Please bookmark the PoS web site in order to return for further updates.
Magnetar observed during outburst thanks to rapid response of INTEGRAL
27 January 2009 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.
Public TOO on 1E1547.0-5408
23 January 2009 INTEGRAL will observe as a public TOO the Anomalous X-ray Pulsar 1E1547.0-5408 which has recently shown intense bursting activity. Observations will begin in revolution 767 on Saturday 24 Jan 2009 at 15:30:59 and last until the end of the visibility window on Sunday 25 Jan 22:14:36.
AO-7 is now open !!!
12 January 2009 Today, the Director of Science and Robotic Exploration (Prof. David Southwood) has released the 7th Announcement of Opportunity for observing proposals with INTEGRAL.
This announcement solicits proposals for observations to be carried out from mid-October 2009 onwards. Proposers from all over the world are welcome to participate. All proposals will be subject to an independent peer review by the INTEGRAL Time Allocation Committee (TAC). The deadline for Proposals submission is Friday 20 February 2009, 14:00 CET (13:00 GMT).
Observing proposals selected for AO-7 will subsequently be open for so-called "data right proposals" via a second Call for Proposals. These associated proposals allow the possibility to obtain data rights on point-like, extended sources or emission features contained in the field of view of accepted observing proposals. The second call is scheduled to be released in May 2009.
More information can be found on the AO-7 page.
INTEGRAL Near Real Time Data Distribution to Observers
09 January 2009 Starting from 9 January 2009, INTEGRAL near real time data will be made available by the ISDC to observers with a delay of a few hours from acquisition by the satellite. Near real time data can be affected by a number of defects and approximate auxiliary information. The final consolidated data are still provided within 6 weeks from the end of an observation.