cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-4bz1dlj
title: 1120015

description: We propose to observe the radio galaxy Centaurus A for 2 Ms. Aim of the present proposal is to study this bright active galaxy in order to characterize the continuum shape and firmly measure the cut-off of the primary emission which is still a matter of debate. Thanks to the INTEGRAL/IBIS and SPI broad band capability it will be possible to definitely asses the spectral parameters of its Seyfert-like component. The energy domain covered by INTEGRAL is crucial to discriminate between thermal and non-thermal processes and thus to determine the contribution of the jet in the global emission. The extended lobe emission detected by FERMI in the gamma-rays domain clearly deserves deep observations to reveal the radiation mechanism supplying this structure.Furthermore we wish to point out that the sky region around Cen A particularly rich of extragalactic objects three of them (Cen A NGC 4945 and NGC 4507) are among the brightest AGN observed in the high energy sky and clearly detected by INTEGRAL. On another hand FERMI has detected a dozen of sources in the 10 circle around Centaurus A half of them without identified counterparts. This demonstrates that this field will provide a lot of potential targets for the second call (source data right proposal) and bring additional results in various scientific domains. We ask here for the data rights on Centaurus A only. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-4en22nm
title: 0199913

description: Galactic Centre Deep Exposure for cycle 1 pattern 3
DOI: 10.57780/esa-4hxlf9p
title: 0220010

description: There is now very good evidence that the  soft gamma repeaters (SGRs) are  magnetars objects in which the magnetic field energy dominates all other energy sources including rotation.  This implies that they posess the strongest known magnetic fields in the universe (10^15 G).  SGRs go through phases of intense activity during which they may emit hundreds of bursts within a period of weeks to months.  During those periods they exhibit properties which are quite different from their quiescent properties.  Their strong magnetic fields are probably mainly responsible for these changes and accordingly it is interesting to study them intensely at these times.  We propose two ToO observations of any of the known or of any newly discovered SGRs during their active phases.  We request that the ToO take place within one month of the trigger.  For clarity we have filled out one observation form for each of the known SGRs and for one unknown SGR.  Our total request however is for just TWO ToOs.  This is one of two SGR proposals being submitted by nearly identical teams.  The other proposal (M. Feroci  and  K. Hurley PIs) requests data on SGRs serendipitously detected by INTEGRAL.  Although the scientific justifications of the two proposals are nearly identical the proposals are independent of one another in the sense that the objectives of each can be achieved without the acceptance of the other. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-4iyup11
title: 0120203

description: The proposal aim is to detect and study hard emission from the supernova remnant IC443 interacting with a molecularcloud. We argue that a high resolution observation of the remnant by the INTEGRAL IBIS SPI} and {it JEM-X} wouldprovide unique information on the structure of the remnant as well as on nonthermal processes of particleacceleration and interactions with molecular gas. Our major goals are:1) Imaging and spectral study of two localized features of hard X-ray continuum emission of the remnant (recentlyresolved by BeppoSAX MECS at energies below 10 keV) to distinguish the pulsar wind nebula and the shockedmolecular clump.2) Studying of hard continuum emission spectrum above 100 keV to extend the CGRO EGRET and COMPTELobservations of the object and to constrain the models of particle acceleration in SNRs.3) Searching for narrow 511 keV annihilation line emission to constrain the nucleosynthetic yields the structure of the SN ejecta and conditions in the remnant. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-4kh7r3b
title: 1120002

description: The Large  and  Small Magellanic Clouds (LMC  and  SMC) represent an exceptional opportunity to study the evolution of X-ray binaries (XRB) under very different conditions to those in the Milky Way. The Clouds are close enough for the individual sources to be detected identified  and  studied whilst presenting diverse environments in terms of metallicity and tidal effects. In addition the population as a whole is possibly greater than the comparable Milky Way population so it provides an invaluable test-bed for accretion physics  and  binary evolution. An earlier Key Programme covering the SMC produced a wealth of data on persistent and transient systems plus revealing strong evidence for the emergence of a new XRB population in the western Bridge (the structure linking the LMC to the SMC). We request time to carry out regular monitoring of the SMC to locate new transient pulsar systems and to continue exploring the ~100 known  and  suspected HMXB systems (precise source location will be achieved using the XMM time). This source location step is critical to unlocking the full potential science of these High Mass X-ray Binary (HMXB) systems and it enables us to explore stellar and binary evolution in different chemical and tidal environments. Only INTEGRAL has a big enough field of view to be able to carry out this crucial role of monitoring activity across the whole SMC/Bridge region. In this proposal we request 12 x 100ks INTEGRAL observations over a period of 3 months with contemporaneous XMM observations. This intensive monitoring programme will permit us to extend the work started by RXTE (Galache et al. 2008 ApJS 177 189) and complement the XMM survey of the SMC carried out in 2010 (PI Frank Haberl). We further request that this programme is repeated in the following AO-11 round to maintain the monitoring/exploring programme into the future. All these studies will be supported by OGLE IV monitoring of the SMC  and  Bridge as wel [truncated! Please see actual data for full text]
DOI: 10.57780/esa-4mqjow4
title: 1220014

description: The survey of the Galactic Plane has been one of the main INTEGRAL scientific objectives both because of the scientific potential of new source discovery and detailed monitoring of already known sources. We propose for a total of 3Ms observations  (between AO12 and AO13) to continue our Key Program started in AO8 for covering the Plane with regular scans every orbit. Our purpose is to regularly monitor known systems as well as to dramatically enhance the chances of discovering new systems during the regular scans of our Galaxy. This program will allow a rapid response to bright events and a detailed study of faint transients and their long term activity. Such a programme will be of high value to a very large fraction of the high-energy astronomy community stimulating science immediately and furthermore contributing greatly to the INTEGRAL legacy. Also in order to maximise the engagement of the scientific community we will continue to make the observations public immediately. The team will make as it has through AO8-11 the scw-resolution IBIS and JEM-X light curves (in two energy bands) and per revolution mosaic images publicly available through the web as soon as possible after the observations have been performed. Any interesting source behaviour that emerges from our observations will be announced promptly so that rapid follow-up by the community is possible as it has been already demonstrated. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-4oq8kdb
title: 0399817

description: Galactic Plane Survey for AO 03 and Pattern 17
DOI: 10.57780/esa-4qcipdz
title: 8860025

description: The 5x5 dither observation with the Crab are used for absolute calibration of the response timing analysis and to improve the imaging calibration. The dither patterns of the different observations are slightly offset to each otherso that the data can combined in a way mimicing different sources (as it was done with the BLC ground calibrationdata). [truncated! Please see actual data for full text]
DOI: 10.57780/esa-4r0ygis
title: 8860139

description: Crab-2007 Spring: SPI 5x5 pattern
DOI: 10.57780/esa-4su947x
title: 0120284

description: Scorpius X-1 is the archetypal neutron star binary  as the brightest X-ray binary and with an extremely well-determined distance it offers a unique opportunity to quantitatively study the magnitude and spectrum of accretion-powered emission processes. As well as thermal optical UV and soft X-ray emission originating in the viscous dissipation of gravitational potential energy strongly non-thermal processes requiring a large fraction of the accretion power budget are evident in radio and hard X-ray bands. Observations in these two bands reveal the most energetic processes in such systems diagnosing both the innermost accretion flow which is well within the strong-field gravity region near the neutron star and the relativistic outflows (the radio jets). Recent work has revealed a strong link between these two relativistic regimes but the nature of this link is as yet unclear. Also in recent work our most fundamental asumptions about the energetics of the accretion/ejection processes have been called into question. We will use INTEGRAL together with ground-based facilities to study these and related issues. By imaging the radio structure of Scorpius X-1 (core-jet and lobe impact sites) with intercontinental VLBI simultaneously with INTEGRAL observations we can directly determine the relation between hard X-ray excess and jet in this system. By combining INTEGRALs wide band with optical/IR and radio we will obtain a unique coverage of the electromagnetic as well as mechanical energy losses from the system.  [truncated! Please see actual data for full text]
DOI: 10.57780/esa-4t2vbyl
title: 8860338

description: New OMC FF sequence ISOC v42 onwards: sequence of ff measurements with LED on/off then a narrow 3x3 dither followed by a DC cal.
DOI: 10.57780/esa-4u51rzv
title: 1120001

description: The Galactic bulge region is a rich host of variable X-ray and g-ray point sources. Since AO-3 we are monitoring about 200 of them with one hexagonal pattern about every 3 days whenever it is visible by INTEGRAL. Due to the high scientific return and in order to preserve the continuity with respect to past observations of this ever-changing region we propose to continue our successful program. Our main aim is to monitor and actively report on any (transient) activity  in the long run the program is providing regular and homogeneous inputs about the soft and hard-X-ray (transient) population as well as on the accretion regimes in the various types of binary systems. Because of the new format since AO-7 and as a service to the scientific community the observations are to be made public immediately. We intend to continue to make the IBIS/ISGRI and JEM-X quick-look results publicly available through the web as soon as possible after the data have been taken so to preserve the possibility for rapid follow-up by the community. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-4ucv1e0
title: 0199923

description: Galactic Centre Deep Exposure for cycle 2 pattern 3
DOI: 10.57780/esa-4w5l9qp
title: 0399827

description: Galactic Plane Survey for AO 03 and Pattern 27
DOI: 10.57780/esa-4wck9z5
title: 0299844

description: Galactic Plane Survey for AO 02 and Pattern 44
DOI: 10.57780/esa-4wdbxpt
title: 0399820

description: Galactic Plane Survey for AO 03 and Pattern 20
DOI: 10.57780/esa-4xcnkou
title: 8860220

description: OMC FF sequence ISOC V10 onwards: sequence of ff measurements with LED on/off followed by a DC cal.
DOI: 10.57780/esa-4xgglhp
title: 8860211

description: OMC FF sequence ISOC V10 onwards: sequence of ff measurements with LED on/off followed by a DC cal.
DOI: 10.57780/esa-52bkssf
title: 8860173

description: Crab-2009 Spring: 5x5 pattern
DOI: 10.57780/esa-539efdj
title: 8860080

description: OMC FF sequence ISOC V10 onwards: sequence of ff measurements with LED on/off followed by a DC cal.
DOI: 10.57780/esa-54ffbnz
title: 8860160

description: OMC FF sequence ISOC V10 onwards: sequence of ff measurements with LED on/off followed by a DC cal.
DOI: 10.57780/esa-56muvkp
title: 0299923

description: Galactic Centre Deep Exposure for AO 02 and Pattern 23 Cycle 3
DOI: 10.57780/esa-56rr5t8
title: 8860255

description: This is a public observation where the Earth will drift through the field of view of the INTEGRAL instruments. Results from this observation will help in separating the cosmic and instrumental backgrounds and so ultimately lead to improved background subtraction.Scientifically the main goals are to measure the spectral shape of the cosmic X-ray background emission above 20 keV and to study any high-energy emission from the Earth during storms in auroral regions. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-573zvty
title: 0410001

description: AO-4 CP: Deep obs. of Galactic Plane.Improve uniformity of exposure in Galactic plane.
DOI: 10.57780/esa-57dyhc3
title: 0320065

description: We propose Target of Opportunity observations by INTEGRAL of therising and peak phases of galactic transients triggered by RXTE.  Thescientific objective is to perform broad band observations during thepoorly understood early phase of black hole outbursts.  For blackholes the beginning of the transient may be the best opportunity tosee the emission from a high temperature spherical infall perhapsfrom between the innermost stable orbit and the event horizon.Transients likely to be observed include X-ray novae and sources ofjet outflows.  Observation with SPI and IBIS during the first few daysof transients will determine the nature of the accretion flow and highenergy measurements will extend to higher energies and ahve greatersensitivity and higher duty cycle than has been possible before withRXTE CGRO or GRANAT.  We will use JEM-X and IBIS to search for QPOsthat often appear early in the outburst.  Detection by INTEGRAL willhelp to identify and observe the sources at other wavelengths.  Wewill trigger based on the RXTE ASM PCA monitoring and PCA pointedobservations and anticipate 1-2 triggers in AO3. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-5ailbik
title: 0840007

description: The explosion mechanism associated with thermonuclear supernovae (SNIa) is still a matter of debate. However there is a wide agreement that high amounts of radioactive nuclei are produced during these events and they are expected to be strong gamma-ray emitters able to be used as diagnostic tools of the explosion. Detailed numerical simulations have convincingly shown that SPI and IBIS can be succesfully used to discriminate among these explosion mechanisms provided the supernova occurs at an appropriate distance. These tests include the temporal evolution of the lines as well the value of the  relative intensities the properties of the continuum and the linewidths. The data collected by the X-ray and optical monitors (JEM-X and OMC) will also be analysed as they can give additional information about the nature of the presupernova system and the spatial heterogeneities of the ejecta. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-5c2lrsv
title: 1320033

description: INTEGRAL study of GRS 1915+105
DOI: 10.57780/esa-5cznxbv
title: 0320060

description: One of the greatest controversies in the physics of AGN jets is whether the plasma is mainly composed of normal matter or e+/e- pairs. The investigators will address this question directly by observing the Seyfert-like radio galaxies 3C 120 and 3C 84 with the Integral SPI instrument each for 500 ks in an attempt to detectthe redshifted 511 keV e+/e- annihilation line. If the jet which interacts strongly with the thermal medium in each galaxy is mainly composed of a pair plasma the positrons entering the medium will thermalize and annihilate. The emission line resulting from the annihilations should be quite narrow < 4 keV. The line can be detected by INTEGRAL unless the positron-to-proton ratio in the jet is less than 0.25 in 3C 120 and 0.04 in 3C 84. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-5jv9r85
title: 2070007

description: INTEGRAL DDT Observations of Sgr A*
DOI: 10.57780/esa-5jxwfgk
title: 8860061

description: RWB operation for rev 242
DOI: 10.57780/esa-5l8czv1
title: 0299803

description: Galactic Plane Survey for AO 02 and Pattern 03
DOI: 10.57780/esa-5lxh3da
title: 0120206

description: We propose to observe two nearby clusters of galaxies (Coma and Perseus) with INTEGRAL.  The aim of the observations is to detect and study the spectra and spatial extension of the Hard X-ray emission (HXT) from the clusters.  We expect this emission to be non-thermal and be of the order of 10% of the thermal emission (based on data from BeppoSAX on Coma).  We want to get a good S/N in the 20+ keV range.  We have simulated JEM-X observations and estimated the IBIS observations of the HXT confirming the feasibility of the observations. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-5mr54wc
title: 0632000

description: We propose a deep 6 Ms exposure of the Cygnus X region as a multi-year INTEGRAL key program in order to answer a number of central questions related to stellar nucleosynthesis and positron production and diffusion. Cygnus X is the most nearby massive star forming region in our Galaxy housing several tens of OB associations and massive star clusters at a distance of approximately ~1.5 kpc. The proximity of the region brings gamma-ray line emission from individual star clusters in reach of the SPI telescope and the spatial extent of ~10 degrees of Cygnus X allows to resolve their contributions. The proposed exposure builds on existing observations of roughly ~4.6 Ms of this region. We present analysis results based on the existing observations and illustrate that an additional 6 Ms exposure will allow for a breakthrough in nucleosynthesis and positron annihilation science. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-5o9y4yu
title: 0399934

description: Galactic lattitude scan Proposal for AO 03 Cycle 3
DOI: 10.57780/esa-5ockove
title: 0420077

description: We propose to monitor NGC 4151 with INTEGRAL to accurately and simultaneously measure the spectral shape up to above 200 keV and to study large amplitude variations with an unprecedented sensitivity and time coverage at high energy. We will correlate the high energy spectral cutoff with other continuum parameters to confirm thermal comptonisation and determine the main physical mechanism driving the variability. We will also disentangle the reflection hump and its variations from the primary continuum and intrinsic absorption and correlate those with the narrow Iron line variability to determine the nature of the thick reprocessing medium and the geometry of cold matter surrounding the source. We will finally probe for the existence of a hard non thermal tail which will constrain the electrons acceleration mechanisms. We request 4 observations of 400 ks each. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-5qo931h
title: 0820021

description: For the first 5 years of INTEGRALs operational life the scientific Core Programme included a key component that was regular scans of the Galactic Plane. These led to a wealth of discoveries of new sources and source types a large fraction of which were highly transient. These discoveries can certainly be considered one of the strongest results from and legacies of INTEGRAL. Since AO-5 these regular scans have been discontinued and this has resulted in a significant drop in the discovery rate of new systems in and around the plane of our Galaxy. We propose to reinstate the Galactic Plane Scans as a Key Programme throughout AO8 and AO9 to allow the regular monitoring of known systems and dramatically enhance the chances of discovering new systems. Such a programme will be of high value to a very large fraction of the high energy astronomy community stimulating science immediately and furthermore contributing greatly to the INTEGRAL legacy.To this aim a total of 2 Msec /year are necessary to cover the plane with regular scans every orbit excluding the central zone to be covered by the Galactic Bulge monitoring programme (should that programme be accepted). We also suggest that in order to maximise the engagement of the scientific community the observations should be made public immediately. The team will make the IBIS and JEM-X light curves in two energy bands per science window and per observation as well as the mosaic images publicly available through the web as soon as possible after the observations have been performed. Any interesting source behaviour that emerges from our observations will be announced promptly so that rapid follow-up by the community is possible. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-5rjnlde
title: 8860113

description: OMC FF sequence ISOC V10 onwards: sequence of ff measurements with LED on/off followed by a DC cal.
DOI: 10.57780/esa-5rp4fv0
title: 0399914

description: Galactic lattitude scan Proposal for AO 03 Cycle 1
DOI: 10.57780/esa-5uw8r5m
title: 2070008

description: INTEGRAL TOO Observations of 4U 1630-47
DOI: 10.57780/esa-5vef9mj
title: 0120094

description: Compton reflection in the accretion disc around massive black holes creates an important component of the spectrum of Seyfert galaxies. The main observables are the iron line at 6.4 keV and a broad reflection hump peaking at 30-40 keV. The iron line has been well-studied leading to important results on the accretion flow in the strong-gravity environment of the black hole.  The reflection hump has so far only been poorly studied. We propose to use Integral to make observations of the reflection hump in a small sample of the brightest Seyfert galaxies on the hard X-ray sky. The anticipated results will be complementary to those from the broad iron line and will enable us to break degeneracies between the solid angle and metallicity of the reflector. They will also enable us to determine the shape of the underlying continuum and probe the geometry of the emission regions. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-5vevpkg
title: 1820001

description: The Galactic bulge region is a rich host of variable X-ray and gamma-ray point sources. Since AO-3 we are monitoring about 190 of them with one hexagonal pattern about every 3 days whenever the region is visible by INTEGRAL. Due to the high scientific return and in order to preserve the continuity with respect to past observations of this ever-changing region we propose to continue our successful program. Our main aim is to monitor and actively report on any (transient) activity  in the long run the program is providing regular and homogeneous inputs about the soft and hard-X-ray (transient) population as well as on the accretion regimes in the various types of binary systems. As a service to the scientific community the observations are to be made public. We will continue to make the IBIS/ISGRI and JEM-X quick-look results publicly available through the web soon after the data have been taken to preserve the possibility for rapid follow-up by the community. [truncated! Please see actual data for full text]