cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-yo5c5hr
title: 0120157

description: We propose to map the emission lines due to radioactive decay of 26Al (1.809 MeV) and 60Fe (1.173 and 1.332 MeV) and the positron annihilation line at 511 keV and positronium continuum in the Cygnus X region with unprecedented spatial and spectral resolution. Cygnus X is an extremely active nearby region containing several star forming regions OB associations and open clusters and most interestingly a massive young proto-globular cluster (Cyg OB2) recently identified from 2MASS data (Knoedlseder 2000). Apart from the inner galactic ridge Cygnus X shows the most prominent emission in the COMPTEL all-sky 1.809 MeV map. Given the youth (2.5 +/- 1 Myr) of Cyg OB2 the 26Al production from this cluster is expected to be solely due to nucleosynthesis in the hydrostatic burning phases of massive mass-loosing stars. This finding and its unique richness --- the number of massive stars make it the most massive star forming region in our Galaxy rivalling even 30 Doradus ! --- render this region unique to study the nucleosynthetic origin of 26Al and to disentangle hydrostatic and supernovae nucleosynthetic yields. For the first time this will be possible thanks to the spatial resolution of INTEGRAL. The study of the morphology of the 1.809 MeV emission and its line profile will also allow us to investigate the transport mechanism and dynamics of the 26Al ejecta in the region. We will also search for possible emission in the 1.173 and 1.332 MeV lines due to 60Fe not produced in mass-losing stars in order to study the contribution of core-collapse nucleosynthesis overall in the Cygnus X region. If detected the 511 keV line and annihilation continuum will provide interesting constraints on the positron escape fraction and mixing processes in core-collapse supernovae and thus yield new insight into the origin of galactic positrons. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-ypw63n3
title: 8860313

description: OMC FF sequence ISOC V10 onwards: sequence of ff measurements with LED on/off followed by a DC cal.
DOI: 10.57780/esa-yr8xtrg
title: 0060004

description: Calibration observation 1:requested by IBIS for the sake of PSF analysis background study demonstrting of imaging capabilities in crowded fields and crosscalibration JEM-X-ISGRI ISGRI-PICSITFirst shot during Commissioning Phase nominal configuration though SPI still configured by MOC (NOT USED mode). [truncated! Please see actual data for full text]
DOI: 10.57780/esa-yrio3br
title: 0920021

description: One of the key investigations so far performed by the INTEGRAL Observatory has been the soft gamma-ray GCDE and the GPS successfully exploited to a depth of better than 1 mCrab in the central region with unprecedented details due to the >20 Ms exposure on SGR A*. The basic outcome is a new view of the gamma-ray domain (E>20 keV) confirmed by the discovery to date of about 1000 sources belonging to all the galactic and extragalactic classes.  More recently the new INTEGRAL view of the extragalactic soft gamma-ray sky has been complemented by the excellent sky coverage provided by the SWIFT/BAT extragalactic survey. INTEGRAL has still a factor of 10 better sensitivity over the Galaxy plane due to the 6Ms average exposure. This is true for the whole plane except for  two important regions that are only covered at a level of ~2.2 Ms and ~1.9 Ms by the end of AO8: the outer Perseus spiral arms. In those regions the material is considerably less dense and we will be able to extend our present studies of compact objects through a detailed comparison of the relative populations of all classes of gamma-ray emitting galactic types in the very different environment provided in these outer regions. Finally last but not least this is a unique opportunity to obtain a deep soft gamma ray coverage of the Galaxy plane: an invaluable INTEGRAL Legacy for future high energy studies. This proposal is specifically designed to reach this goal thus making a corner stone in the high energy understanding of our Galaxy behaviour in the 17-600 keV range and provide a text book for future population studies. This is a strategic goal in view of the lack of any high energy mission planned in the next decade and it has been identified as a long term legacy in the INTEGRAL extension science case 2010. To achieve this goal we propose to observe the still two weakly exposed regions at galactic latitude b=0 and longitude of l=150 and 225 degr [truncated! Please see actual data for full text]
DOI: 10.57780/esa-ys5iu2r
title: 0820002

description: This is a confirmatory resubmission of the successful AO7 proposal 0720003 currently being carried out requesting a completion of the programme as described in the original proposal.  Recently significant advances have been made in  understanding of the diffuse Galactic continuum emission observed by SPI on INTEGRAL. The hard power-law component has been identified with inverse-Compton emission from relativistic (GeV) electrons on the cosmic microwave background and Galactic infrared radiation field. The observed intensity is in good agreement with detailed predictions from the GALPROP model which accounts for both primary and secondary electrons and positrons.  We propose to exploit this with INTEGRAL to obtain a probe of the distribution of cosmic-ray electrons in the Galaxy in particular in the Galactic halo seen at high latitudes. To this end we propose a multi-year scan covering a wide latitude range in the inner Galaxy significantly deepening the exposure over what is currently available. The decreasing background due to the solar cycle will improve the signal-to-noise over that for the INTEGRAL   mission so far. The results will have implications for Fermi-LAT which is now in operation - taken together the data from the  two missions will constrain the cosmic-ray electron spectrum at GeV energies and help to give an unambiguous decomposition of the diffuse gamma-ray sky. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-ys9uxs3
title: 1640006

description: We request Target of Opportunity (ToO) observations to study a (new or known) Black Hole (BH) transient in two distinct spectral states (200 ks each or a minimum of a full orbit) simultaneously with two XMM-Newton observations (10 ks each) and multi-wavelength campaigns. BH transients sporadically appear and display complex spectra and fast time-variability properties. Our goal is to witness their evolutions and connections to radio/Opt./NIR properties to understand the accretion/ejection processes. Using INTEGRAL simultaneously with XMM-Newton and ground-based facilities we aim to measure in detail the spectral variations (curvature and breaks of the Compton medium) and correlate them with disc and jet evolutions. With an unprecedented high-energy sensitivity in any sky region INTEGRAL allows us to i) disentangle the different contributions to the broadband continuum emission (strength of the reflection hump test of thermal Comptonization vs hybrid models)  ii) shed light on the nature of the additional parameter to the accretion rate suspected to drive state changes and iii) reveal the relationship between the hard X/soft gamma-ray emission jets and their evolution with time. The different physical components (star accretion disc winds hot inner flow compact object corona relativistic jet) emit and absorb radiations at different frequencies and are influenced by the others. Such multiwavelength observations are the most fruitful way forward to constrain distinct models as we have showing during many such observational campaign the last was performed on the exceptional June 2015 outburst of V404 Cygni. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-yt10mm2
title: 1520033

description: We propse to continue the study of the long-termevolution of the cycloron line energy Ecyc in Her X-1. The long-term decay of Ecyc discovered in data takenbetween 1993 and 2012 (Staubert etal. 2014) was confirmed by a precise measurement by NuSTAR in August 2015 firmly estabilishing a decay by ~5 keV over the last 20 yrs (Staubert et al. 2016). However the last observing campaign in 2016 coordinated between NuSTAR and INTEGRAL has provide evidence that the decay has ended in fact hinting at a possible increase similar to the increase observed between 1990 and 1993. Based on the idea  that both this increase and the subsequent long-term decay were most likely related to the evolving configuration of the magnetic field at the accretion mounds formed by matter accumulated in the polar regions of the accreting neutron star Staubert 2014 and Staubert et al. 2014 2016 had speculated that a new ncrease might happen once Ecyc had reached a low level similar to the one found whenthe line was first discovered. We therefor propose to continue the monitoring of Her X-1 during AO-15 with two observations 200 kes each (about half a year apart). [truncated! Please see actual data for full text]
DOI: 10.57780/esa-yt1koyi
title: 0299911

description: Galactic Centre Deep Exposure for AO 02 and Pattern 11
DOI: 10.57780/esa-yt70ur6
title: 8860226

description: Crab 2011: IBIS Mask Corner rev 1019
DOI: 10.6084/m9.figshare.28515986
title: Tumor_Q3_55segments_1162_targets

description: Count data tumor segments after preprocessing (filtering) and normalization.
DOI: 10.57780/esa-ytgyr8z
title: 8860197

description: OMC FF sequence ISOC V10 onwards: sequence of ff measurements with LED on/off followed by a DC cal.
DOI: 10.57780/esa-yvu0xyd
title: 8860329

description: Crab Calibration 2016.1 (1661-1662): JEM-X
DOI: 10.57780/esa-z1p18e9
title: 1740007

description: There is good evidence that Anomalous X-ray Pulsars (AXPs) and Soft Gamma Repeaters (SGRs) are magnetars objects in which the magnetic field energy dominates all other energy sources including rotation. This implies that they possess the strongest known magnetic fields in the universe (10^13-15 G). Magnetars go through phases of intense activity during which they may emit a few up to hundreds of bursts within a period of weeks to months and at the same time they can increase their persistent flux by more than two orders of magnitude.  During those periods they exhibit properties which are quite different from those in quiescence. Their strong magnetic fields are probably mainly responsible for these changes and accordingly it is interesting to study them intensively at those times. In addition the discovery of transient magnetars has opened a new perspective in the field.  This proposal is aimed at gathering new insights on the physics of magnetars through the study of the multi-band spectrum of the initial phase of their outbursts. We request four 170 ks ToO INTEGRAL and 20 ks of coordinated Swift/XRT observations to be triggered by an X-ray flux increase or burst activation from known and new magnetars. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-z1uv4dd
title: 8860339

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-z2pj3vi
title: 8860168

description: OMC FF sequence ISOC V10 onwards: sequence of FF measurements with LED on/off followed by a DC cal.
DOI: 10.57780/esa-z2seo1b
title: 1570009

description: ASASSN-18fv is a unique object that could finally give positive resultsregarding nucleosynthesis lines in novae one of the objectives of theINTEGRAL observatory and also help to understand the origin of the 7Be in the galaxy (stellar component). [truncated! Please see actual data for full text]
DOI: 10.57780/esa-z4ny6wd
title: 8860176

description: OMC FF sequence ISOC V10 onwards: sequence of FF measurements with LED on/off followed by a DC cal.
DOI: 10.57780/esa-z57aq0m
title: 8860082

description: Stare 2*10 ks on Crab while MOC changes manually the HVsettings in order to test effects of different gain.Add 100 s in special Test mode.
DOI: 10.57780/esa-z7vx9km
title: 1520024

description: Koposov et al. (2015) used data from the Dark Energy Survey to search for new dwarf satellite galaxies (DSGs) of the Milky Way (MW). They found nine candidates in the southern sky which may be related to the magellanic systems. Among their sample Reticulum II (Ret II) is the closest and was detected with a significance of more than 48 sigma. Looking for a possible low energy gamma-ray emission from these new DSGs Siegert et al. (2016) found a 3.1 sigma signal at photon energies around 511 keV from the direction of Ret II with a flux of 1.7E-4 ph/cm2/s. The origins of such a 511 keV signal from electron-positron annihilations are versatile and probably not attributable to one particular source. The connection between this excess and the galactic centre signal remains unexplored. Massive stars and supernovae have been considered as a possible source of 511 keV photons in the MW since they can produce beta+-unstable isotopes. However they are unlikely to be responsible for the signal in Ret II since we do not expect any in DSGs. Dark matter (DM) has also been proposed as a possible source of low-energy positron emitters in the MW and could be a source of positrons in Ret II as it is dominated by DM. However the cross section needed to explain the 511 keV signal in Ret II would make the MW brighter at these energies. Another source of low-energy positrons could be microquasars. These may produce electron-positron pair-plasma predominantly in outbursts. In fact one single microquasar in Ret II might be enough to explain the whole emission. In this proposal we ask for 1.5 Ms of observation time towards the direction of Ret II (l/b) = (266.3/-49.7) which would add to the currently available 250 ks. This observation would consolidate or falsify the discovery of a 511 keV line signal in Ret II and understand its origin if it is indeed present. In addition observing these DSGs with SPI may help to solve the 40 years [truncated! Please see actual data for full text]
DOI: 10.57780/esa-z9p5rv8
title: 1670008

description: INTEGRAL TOO observations of AT2019pev
DOI: 10.57780/esa-zdojn62
title: 8860293

description: OMC FF sequence ISOC V10 onwards: sequence of ff measurements with LED on/off followed by a DC cal.
DOI: 10.15468/dl.h4e5xg
title: Occurrence Download

description: A dataset containing 1113 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((26.08415 37.82116,28.1974 37.82116,28.1974 39.20354,26.08415 39.20354,26.08415 37.82116))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Fungi"
 ]
}

 The dataset includes 1113 records from 37 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0008432-250310093411724/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.57780/esa-ze2j4xp
title: 1020019

description: We propose in the present INTEGRAL AO-10 to monitor the Compton-thick AGN NGC 4945 for a total of 1 Msec. We will coordinate a snapshot of this monitoring with the incoming NuSTAR hard X-ray satellite for a simultaneous observation with INTEGRAL having the double goal of calibrating the two instruments while studying the spectral shape and variabity of NGC 4945. This campaign is unique in two respects: NGC 4945 is the only object suitable for an investigation of possible variations of a Compton-thick AGN which would confirm the first constraints on the structure and dimensions of the absorber/reflector in these objects and the proposed observations are a clear ideal case for combined NuSTAR/INTEGRAL obser- vations in order to cross-calibrate the two instruments and making full use of their unique high-energy spectral capabilities study the broad band spectrum of this archetypal Compton thick AGN. We propose to split this observational campaign in a sequence of 8 pointings of 100 ksec each before and after a 200 ksec measurement contemporaneous with NuSTAR. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-ze4d7lm
title: 0820026

description: We propose to spend four fixed-time orbits of INTEGRAL (475 000s + 475 000s) to observe the galactic microquasar SS433 which fully cover two orbital hard-X-eay eclipses near the face-on disk precessional phase of the source in April 2011 and October 2011. AO8 is exceptional for SS433 observations in comparison to all prevous INTEGRAL AOs in providing the rare opportunity to see two precessional maxima within visibility constraints of INTEGRAL and we propose to make use of this opportunity.  The main scientific goal of new observations is to carry out  hard X-ray spectroscopy of the source during the primary eclispe ingress/egress and to study its highly variable form.The phase-resolved spectroscopy will be used to probe the structure and physical parameters of a 20-keV rarefied corona around the center of the supercritical accretion disk in SS433 discovered in previous INTEGRAL observations. Adding new hard X-ray light curves of the primary eclipse near the precessional maximum will significantly improve upon the geometrical model of the source and the binary system parameters.  The proposal is not associated with any of the AO8 Key Programs.  [truncated! Please see actual data for full text]
DOI: 10.57780/esa-zeaj6p9
title: 1920004

description: We propose to continue the INTEGRAL/multi-wavelengh monitoring of GRS 1915+105 with the goal to understand the tight connections that exist between the different emitting media and placed in a broader context understand accreting-ejecting sources in general. We will still take advantage of other facilities we included in the past AOs (the Sardinia and Medicina radio telescopes Insight-HXMT in the X-rays and possibly NICER). We will also include infrared/optical (ESO) through  dedicated proposals.  We require 10 observations of 90 ks each (based on what was awarded by the TAC in AO18) pointings taken every second revolution in order to 1) probe the physics of accretion by studying the 0.5-500 keV emission of the source 2) study the origin of the high variability of GRS 1915+105 3) understand the connections between accretion and ejection processes and 4) constrain physical models of emission processes through broad-band spectral and temporal analysis. Points 1) and 2) can be done by looking into the interplay between the soft and hard X-ray emitters (JEM-X and IBIS + HXMT and/or NICER) point 3) and 4) need contemporaneous broad-band coverages and timing studies (with NICER and HXMT). Besides these specific points this monitoring will allow us to accumulate more data and thus have a better view of the (rather unknown) behaviour of this source beyond 200 keV.  This is especially true for the recent low (hard) state phase the source has entered in 2018 and which seems to be accompanied with sporadic radio flares. It should also be noted that GRS 1915+105 lies in a quite crowded field with many variable sources such as X-ray binaries of all types the enigmatic microquasar SS 433 and a couple of highly absorbed IGR sources. This survey will also  permit all these sources to be studied in a regular manner. Such a monitoring will greatly participate to the INTEGRAL legacy by bringing new data for a dozen of exci [truncated! Please see actual data for full text]
DOI: 10.57780/esa-zg40f9h
title: 8860288

description: OMC FF sequence ISOC V10 onwards: sequence of ff measurements with LED on/off followed by a DC cal.
DOI: 10.57780/esa-zhq3q56
title: 0620041

description: We propose to obtain up to 5 deep exposures of a black hole transient in outburst as part of a global simultaneous multi-wavelength campaign.  Each exposure should be 130 ksec in duration (1/2 orbit).Curvature and breaks in the high energy spectra of black holes are essential for comparing gamma-ray and X-ray states and for revealing the relationship between hard X-ray emission and jets.  It is now clear that deep exposures are needed to reveal diagnostic complexities in the high energy spectra of black holes.  To best serve the interests of the community and to generate broad interest in this science we request that the data be made public immediately. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-zitpd65
title: 0820025

description: Monitoring of microquasars such as GRS 1915+105 and Cygnus X-1 during the previous INTEGRAL AOs has revealed a wealth of new observational information. The monitoring has revealed the dynamical behavior of these sources above 20 keV on all timescales as opposed to the snapshot observations available before. We propose to continue the monitoring of these canonical black holes with a dedicated Key Programme in INTEGRAL AO8 which will also include the soft X-rays through a strategy that allows the source to remain in the field of view of JEM-X. The proposed investigation will allow to study di erent emission models for the two extreme cases of microquasars with INTEGRAL and simultaneous optical IR and radio observations. This proposal is a continuation of our earlier accepted observations that started in AO1. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-zj2w77i
title: 2070005

description: TOO observation of 4U 1630-47Coordinating with IXPE/NuSTAR/Astrosat.
DOI: 10.57780/esa-zk0mdx4
title: 8860039

description: Crab on-axis observations during August 2003. One on-aixs 5x5 dithering (55ksec) and one on-axis staring (50ksec).
DOI: 10.57780/esa-zmezbhq
title: 1970003

description: INTEGRAL DDT Observation of Sgr A*
DOI: 10.57780/esa-zmsxc1v
title: 2070013

description: INTEGRAL TOO observations of Swift 0 Swift J1727.8-1613 (AKA GRB 230824A)
DOI: 10.6084/m9.figshare.28515977
title: Stroma_Q3_36segments_1585_targets.xlsx

description: Count data stroma segments after preprocessing (filtering) and normalization.
DOI: 10.57780/esa-zo9c1m9
title: 0060009

description: Calibration observation 2: 270 ksec observation 2.67 degree offset from Cygnus X-1 to study the PSF extended and diffuse emissionline emission imaging capabilities in crowded fields crosscalibratoin and demonstration of IBIS imagingcapability in dither mode. In addition is this observation suitable to study the background evolution. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-zpt2q9f
title: 8860026

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-zqr2kt9
title: 1020016

description: We propose fixed-time observations of the galactic microquasar SS433during two consecutive INTEGRAL orbits (240 ks + 240 ks) around the orbital hard X-ray eclipse at the disk precessional phase$Psiapprox 0.2$ of the source in March 2013. The main scientific goal of new observations is to investigate  hard X-ray flux variations before and after the X-ray eclipse to investigate disk nutation effects discovered by previousINTEGRAL observations which were carried out at the maximum disk opening angle at different precession phases of the source. The observations will also be used to search for spectralchanges with precession phase. The results will allow us to put stringent constraints on physical parameters of the funnel of supercritical accretion disk and hot scattering corona discovered by INTEGRAL in SS433 a unique feature of SS433 among other galactic microquasars.  The proposal is not associated with any of the AO10 Key Programs. [truncated! Please see actual data for full text]