cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-cce2mov
title: 0220112

description: The proposal aim is to detect and study hard emission from the supernova remnant IC 443. The remnant is the most spectacular case of an SNR interacting with a molecular cloud. IC 443 is an extended (45 arcmin) remnant containing a compact pulsar wind nebula and coincided with the CGRO EGRET source 3EG J01617+2238. We argue that spatially resolved observations of the remnant by INTEGRAL IBIS SPI and JEM-X would provide unique information on the structure of the remnant as well as on nonthermal processes of particle acceleration and their interactionswith molecular gas.Our major goals are:(i) Imaging and spectral study of hard X-ray continuum emission of the pulsar wind nebula in IC 443 recently resolved by Chandra and XMM-Newton at energies below 10 keV.(ii) Study of hard continuum emission spectrum above 10 keV to identify the nature of the CGRO EGRET source 3EG J01617+2238 and to constrain the models of particle acceleration (leptons vs nucleons) in the northeastern shell of IC 443 combining INTEGRAL data with all available data from CGRO COMPTEL and BeppoSAX.(iii) Searching for narrow 511 keV annihilation line emission to constrain the nucleosynthetic yields the structure of the ejecta of the supernova and conditions in the remnant. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-cjaaatr
title: 0299830

description: Galactic Plane Survey for AO 02 and Pattern 30
DOI: 10.57780/esa-cmsyik8
title: 0920009

description: We propose to observe Her X-1 during INTEGRAL s AO-9 for a total observing time of 600 ksec:  covering one  Main-On  with two INTEGRAL orbits the first near the maximum of the  Main-On   the second during its decay plus one INTEGRAL orbit during the following  Short-On .  Our general objective is to continue the long-term covering of this enigmatic source by INTEGRAL  in order to investigate two (intimately related) aspects: A. the physics of generating the cyclotron line and the reasons behind the variability of Ecyc as a function of time luminosity 35 day precession-phase and 1.24 s pulse-phase and B. the question whether the neutron star (NS) does really precess with a period of 35 days in strict synchronization with the accretion disk. If the observed systematic variations of the shape of the pulse profiles are indeed due to the NS s precession  then we would have to conclude that the precessional period is changing by a few percent every few years which most likely requires some changes in the structure of matter and/or magnetic field of the NS s interior. This may open a new channel to the understanding of the properties of matter at supra-nuclear densities. On the other hand some observational results seriously challenge the idea of NS precession in Her X-1. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-cn2zj03
title: 8860150

description: Crab-2007 Spring: SPI 5x5 pattern
DOI: 10.57780/esa-cotqp7k
title: 0320049

description: Renewing our accepted TOO proposal of AO1 and AO2 we propose to observe an outburst in the Be/X-ray binary pulsar A 0535+26 in two stages each with a 200 ks observation. The first stage is triggered by a normal outburst (200 mCrab 2-10 keV)  the second stage is to be done if the outburst develops turns out to  be a giant outburst (>=1 Crab).The first observation will measure the broad-band phase averaged spectrum with high significance up to ~200 keV testing the presence of a 55 keV cyclotron line at half the energy of the known 110 keV line. With the high energy resolution of SPI and ISGRI  we will study in detail the line shapes. Previous instruments mostly scintillators lacked the energy resolution for these studies.The possible second observation when A 0535+26 is significantly brighter than the Crab below 200 keVwill allow us to perform detailed phase-resolved spectral studies. By comparing the evolution of the spectrum with pulse phase to Monte-Carlo simulations of cyclotron line formation we hope to infer details of the emission region such as the overall geometry the optical depth and the viewing angle of the observer to the magnetic dipole axis.Finally we will search for redshifted gamma-ray lines particularly 2.2 MeV photons from deuterium formation from nuclear processes at the neutron star polar cap. This has the exciting possibility of determining the redshift at the neutron star surface thereby constraining the neutron star equation of state.Because of the typically long (few year) intervals between major outbursts it is possible that only one such event will occur during the Integral mission lifetime. It is therefore important that it be a preassigned TOO in order that any outburst be optimally observed. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-cq4o2iv
title: 0270001

description: Peter Kretschmar (ISDC/MPE) Masha Chernyakova (ISDC)Sandro Mereghetti (IASF Milano) Roland Walter (ISDC) Simon Shaw (ISDC)Marc Tuerler (ISDC)PSR B1259-63 is a unique binary system composed by a radio millisecondpulsar orbiting a Be star in a very eccentric orbit. The periastronpassage occurs every 3.4 years and offers the possibility of studyingthe interaction of the relativistic wind from the pulsar with the windand circumstellar disk of the companion.The current periastron occurred on March 7 2004. A few days earlier PSRB1259-63 has been detected for the first time at E > 200 GeV with the HESStelescope (IAU Circ. n. 8300) at a flux level of ~0.1 Crab. The time ofthe detection corresponds to the first pulsar crossing of the equatorialdisk which surrounds the Be companion. The next crossing of such a diskwill occur between March 20 and 25 and further high energy emission isexpected at that time.The HESS detection is possibly the confirmation of models predicting theacceleration of relativistic particles at the relativistic shock betweenpulsar and Be wind (Tavani  and  Arons 1997 Kirk et al. 1999 Chernyakova  and Illarionov 2000). The interpretation of these observations would benefitfrom a wide energy coverage and spectral measurement with INTEGRALconstraining the physics of the different models.We propose an INTEGRAL TOO to extend the HESS coverage of that event downto the MeV and possibly lower energy range.After the radio discovery in 1990 only the 1994 periastron passage had agood multiwavelength coverage at high energy thanks to CGRO leading to adetection with OSSE in the 50-200 keV range (Grove et al. 1995 Tavani etal. 1996). The source spectrum was a hard powerlaw with slope 1.8+-0.6 anda flux of ~4 mCrab. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-cqkuarf
title: 8860184

description: OMC FF sequence ISOC V10 onwards: sequence of FF measurements with LED on/off followed by a DC cal.
DOI: 10.57780/esa-cqvz7v3
title: 1870003

description: Annual IACHEC cross-calibration coordinated observations of 3C 273
DOI: 10.57780/esa-ctq8b7l
title: 1120022

description: We propose 	extbf{fixed-time} observations of the galactic microquasar SS433with atotal duration of 500 ks centered at  the middle of the orbital hard X-ray eclipse at the disk precessional phase$Psiapprox -0.1$ of the source in November 2014. The proposal is the continuation of the set of INTEGRAL observations of the unique galactic source SS433 carried out in previous AOs.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. These observations will also add to search for long-saught spectralchanges across the primary eclipse. The results will be used to  understand the physics 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 AO11 Key Programs. [truncated! Please see actual data for full text]
DOI: 10.15468/dl.npebnc
title: Occurrence Download

description: A dataset listing the 52 species recorded in GBIF matching the query:
{
 "DatasetKey" : [
 "is Mammal Specimens of The Cattle Museum"
 ]
}

 The dataset's 52 records were derived from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0008411-250310093411724/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.57780/esa-cu3x3r2
title: 0940005

description: We propose a 1Ms TOO observation of a bright black-hole transient either known or unknown to follow its complete transition from hard to soft state. This transition which takes place at high flux levels encompasses marked changes in the properties of the accretion flow and it includes the time at which the ejection of an accelerating relativistic jet stops abruptly. The study of the high-energy properties during the transition is important for our understanding of accretion onto black holes and can only be accomplished with INTEGRAL. A simultaneous large multi-wavelength campaign is being organized to support the proposed observation including other X-ray satellites. The campaign will be centered around the INTEGRAL pointing. The trigger will be provided by a threshold limit in either hard or soft X-ray flux. Such a monitoring  is becoming a key goal in the community working on black-hole binaries. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-cuec4pu
title: 8860132

description: OMC FF sequence ISOC V10 onwards: sequence of ff measurements with LED on/off followed by a DC cal.
DOI: 10.57780/esa-cv8dt8s
title: 1720026

description: We ask for valuable INTEGRAL time in order to augment our ongoing program aimed at creation of an ultra-deep extragalactic field in the direction centered on M81 galaxy. This ultra-deep field will become INTEGRALs legacy for studies of the AGN population at low X-ray fluxes and shall provide a ground for unique synergy with upcoming sensitive all-sky surveys by eROSITA and ART-XC telescopes on-board SRG observatory. We ask for additional 1.25 Ms of observations in AO17 aiming to increase the exposure for this field by 10 Ms till the completion of the SRGs 4-yr-long all-sky survey mission. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-cw5y4vd
title: 8860071

description: Crab spring/05 SPI 5*5Used to check SPI and IBIS mainly
DOI: 10.57780/esa-cwlx1x8
title: 1220037

description: Per A/3C 84 is a radio galaxy coinciding with the BCG of the Perseus galaxy cluster NGC 1275. Its jets interact with the intra-cluster gas in the central region of the cluster creating features in the X-ray image of the cluster. This object is clearly detected by Fermi in the GeV range thus raising new questions on the nature of its emission. Indeed several processes can be responsible for the emission detected in the GeV range. In the hard X-ray band the source was clearly detected by INTEGRAL up to ~80 keV in a 500 ksec observation and the high-energy signal was found to be significantly variable. We propose a 1 Msec observation of NGC 1275 with INTEGRAL split into 5 distinct 200 ksec observations in order to analyse the variability of the source simultaneously with Fermi observations. In addition simultaneous Swift observations are asked to cover the soft X-ray and optical bands. The allocated time will also allow us to constrain the presence or not of a cut-off in the spectrum of this object and therefore distinguish between the synchrotron and inverse-Compton models for the hard X-ray emission of this source. We request the data only for the Perseus cluster/NGC 1275 source. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-cwmzfad
title: 1920010

description: Fast Radio Bursts (FRBs) have already provided a large wealth of interest and speculation about their origin complemented by a large number of applications for new science that can be explored once we have a statistically significant sample of them. FRBs show an impulsive behaviour characterised by a $sim$ms-long very energetic burst. A growing subset of the population is now characterised by repeating bursts. The chance to observe FRBs more than once has helped constrain their properties and shaped the proposed models for their origin. The identification of its host galaxy has allowed in-depth studies of the original repeater: FRB 121102. Amongst the new repeaters FRB 180916.J0158+65 has the lowest projected dispersion measure and was most recently localised to a nearby massive spiral galaxy. Its high activity led most recently to the discovery of a 5-day activity cycle of the source every $sim 16$ days. With its closeness its localisation and now its periodicity FRB 180916.J0158+65 represents the most promising candidate for investigating the properties of repeaters which have so far been elusive in the case of FRB 121102. One outstanding question concerns the multi-wavelength emission from FRBs which are at present only seen in the radio band. Higher energy bursts are predicted by most FRB models either simultaneously with the radio bursts or as an afterglow after the bursts. We propose INTEGRAL observations combined to a capillary international multi-wavelength campaign led by the Sardinia Radio Telescope with the aim of detecting for the first time this source at hard X-rays and collecting unprecedented observational information about the broadband emission properties of the source and in turn discriminating its nature. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-cz47wgs
title: 1120004

description: This proposal is aimed on obtaining legacy-level observational datasets on the Milky Way Galactic disk.  The ultimate goal of the entire project is to have model independent and systematics free measurements of the fluxes in nuclear lines (511 keV annihilation emission 1.8 MeV Al26 and 1.17 MeV and 1.33 MeV Fe60 lines) and a broad band spectrum of the Galactic background emission which at different energies is provided either by cumulative emission of faint Galactic sources or by interaction of low energy cosmic rays with interstellar medium. Taking into account the unique combination of properties of the INTEGRAL instruments - broad band coverage large fields of view and possibilities to eliminate the contribution of discrete sources from the total measured photon flux the proposed strategy is the best possible usage of the valuable INTEGRAL time. Wide mapping of the Milky Way during the campaign of Galactic latitude scans also contributes to the legacy of the INTEGRAL observatory giving the opportunity to study the population of Galactic sources at high latitudes. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-czpv7ss
title: 0420102

description: We propose a 400 ksec INTEGRAL observation  of the dipping low-mass X-ray binary (LMXB) 4U 1254-690 simultaneous with an accepted (priority A) 60 ksec XMM-Newton AO-5 obseravtion. Te 0.5-10 keV spectroscopy provided by XMM-Newton will be strongly enhanced by the INTEGRAL observation which will allow the continuum to be characterized to an expected energy of 300~keV. The changes in the 0.5--10 keV continuum and the H- and He- like Fe K absorption features around 6.5 keV during dips have been successfully modeledby changes in the column density and ionization state of a highly photo-ionized absorber (Boirin et al. 2005  Diaz Trigo et al. 2006). However to accurately characterize the ionization state of the absorber it is necessary to know the overall level of the continuum above 10 keV since this is where the bulk of the ionizingphotons are. These previous studies used non-contemporaneous BeppoSAX and R-XTE observations to estimate the power-law index of the high-energy continuum which introduces large uncertainties intheir estimates of the ionization parameter. The INTEGRAL observation proposed here in conjunction with the alreadyapproved XMM-Newton observation will provide for important new insights into the nature of photo-ionized plasmas in LMXB. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-d1iv8fa
title: 8860245

description: OMC FF sequence ISOC V10 onwards: sequence of ff measurements with LED on/off followed by a DC cal.
DOI: 10.57780/esa-d1z1plh
title: 0220145

description: The high energy  spectra of Seyfert galaxies are highly complex comprising of  at least a hard power law with high energy cutoff a Compton reflection bump (signature of the accretion disk?) peaking between 10keV and 30keV a warm absorber below 2 keV and an iron emission feature near 6.4 keV. In order to accurately measure these various components observations are needed with good signal-to-noise high sensitivity and broad bandwidth. We propose simultaneous INTEGRAL and XMM-Newton observations of two Seyfert galaxies Mkn 590 (type 1) and NGC 7172 (type 2). The main goal of this INTEGRAL proposal is to accurately diagnose the strength and ionisation state of the reflection bump   In addition we intend to accurately measure the energy of the power   law high energy cutoff and possibly search for any systematic effects in these spectral components due to the orientation of the system to the line-of-sight [truncated! Please see actual data for full text]
DOI: 10.57780/esa-d2mjeal
title: 0620037

description: We propose to observe the Be/X-ray binary system A0535+26 in the case it presents an outburst monitoring the rise to the peak and the descending part of the outburst. In the case of a giant outburst one main goal will be to study the luminosity dependence of the cyclotron energy. For the first time high accuracy measurements at high luminosities of the cyclotron energy in A0535+26 will allow to test the hypothesis of a change in the height in the accretion column caused by an increase in the mass accretion rate. If the source enters a normal outburst another important goal will be to study possible magnetospheric instabilities which have recently been discovered for this source. Non-stationary accretion can be probed using INTEGRAL capabilities which will allow to monitor the cyclotron line energy to perform a precise timing analysis and to study the pulse profile evolution with time and luminosity.  [truncated! Please see actual data for full text]
DOI: 10.15468/dl.92vdzz
title: Occurrence Download

description: A dataset listing the 19 species recorded in GBIF matching the query:
{
 "DatasetKey" : [
 "is Bahamas Marine Mammal Research Organisation Strandings"
 ]
}

 The dataset's 19 records were derived from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0008412-250310093411724/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.57780/esa-d5xabaf
title: 1820012

description: Two years ago we initiated a multi-year program (AO-16 and AO-17) aimed at creation of an ultra-deep extragalactic field in the direction centered on galaxy M81. We now request new INTEGRAL observations in order to continue our program. This ultra-deep field will become INTEGRALs legacy for studies of the AGN population at hard X-ray fluxes as low as fewx10^-12 erg s^-1 cm^-2 and shall provide a ground for unique synergy of INTEGRAL with the all-sky X-ray surveys by the eROSITA and ART-XC telescopes on board the SRG observatory which began in December 2019. We ask for additional 5 Ms of INTEGRAL observations 2.5 Ms in AO18 (2021) and 2.5 Ms in AO19 (2022) to reach a sensitivity of 2x10^-12 erg cm^-2 s^-1 in the 17-60 keV energy band by the midtime of the SRG 4-year all-sky survey. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-d6fw762
title: 0120248

description: The study of galactic X-ray binaries (XRBs) has matured very rapidly in the past few years: RXTE has allowed us to observe for the first time phenomena that take place at the inner edge of the accretion discs that feed the central black hole or neutron star in these systems  Chandra and XMM-Netown are producing energy spectra of unprecedented quality for some of these objects  systematic studies at radio wavelengths are beginning to show that jets are quite a common phenomenon in XRBs. In short this new era has produced several exciting discoveries but it has also posed new and more sophisticated questions than could have been formulated 2-3 years ago. These motivate us to propose an ambitious program using INTEGRAL in combination with radio and softer X-ray observations (both spectral and timing) of a group of persistent hard-spectra low-mass X-ray binaries. We will probe the relation between radio and (non-thermal) hard X-ray emission in XRBs  this will eventually allow us to understand the physics of the mechanism that produces the hard X-rays and its relation to the relativistic jets seen in several of these sources. We will measure their energy spectra over a very large frequency baseline which we will use to address the issue of the relation between X-ray and bolometric luminosities and their correlation to mass accretion rate. We anticipate the contributions of INTEGRAL to be part of the foundations of this important field. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-d71vqtw
title: 1270010

description: The neutron star low-mass X-ray binary GS 1826-238 aka the Clocked Burster is currently observed in a new state change as revealed by Swift/BAT and MAXI light-curves. This is only the 4th time since the source discovery in 1989 but also already the 4th time in 15 months only indicating that these state changes seem to occur more and more frequently.As its name indicates this source is known to produce bursts at a regular recurrence time typically around 4-5 hours. We observed the source for the first time in a soft state in June 2014 (see Chenevez et al. astro-ph/1509.01248) with Swift/XRT and NuSTAR showing a much different burst behavior than usual with both much shorter bursts and recurrence times. At that time the hardness ratio of Swift/BAT to MAXI intensities was below 0.7 compared to the usual value about 1.5.The current Swift/BAT to MAXI ratio is about 0.01. Yesterday (September 26) we obtained a 1.8 ks Swift/XRT ToO to measure the actual spectrum of GS 1826-24. This observation also reveals a softer spectrum (http://www.swift.ac.uk/user_objects/tprods/USERPROD_2.110.8.170_1443271067220/spec) than in 2014 June and the best fit is obtained with a double black-body model with temperatures of 0.6 keV and 1.6 keV.Unlike the previous soft episodes GS 1826-24 is this time observable with INTEGRAL. The source was well detected by ISGRI during the Galactic Bulge (GB)observation of revolution 1587 at a significance of 29 sigmas in the 18-40 keV energy band but has remained undetected by ISGRI in the following GB observations (revs. 1589-1592). Recently GS 1826-24 has only been in JEM-X field of view in four science windows during the Galactic Center observation of rev. 1589. The source was well detected but no burst was observed during this almost 10 ksec exposure.We therefore request a ~30 ksec long observation with INTEGRAL using a couple of hexagonal patterns centered on GS 1826-24 to get an (almost) uni [truncated! Please see actual data for full text]
DOI: 10.57780/esa-d9858bu
title: 0620022

description: Relativistic particle acceleration takes place in colliding-wind binaries thus leading to the emission of soft gamma-rays through inverse Compton scattering. Such a non-thermal emission has been recently detected for the ?rst time in Eta Carinae by INTEGRAL. The averaged emission from Eta Carinae in the 22?100 keV energy range is very hard (photon index around 1) and its luminosity is 7E33 erg/s. The X-ray emission of Eta Carinae is changing along its orbital period of 5.53 yr and there are hints that the same might apply to its gamma-ray emission. Therefore we propose to perform a 1 Ms observation of Eta Carinae around December 2008 during the next periastron passage. [truncated! Please see actual data for full text]