cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-2b12uaf
title: 2020016

description: One of the most important results on Galactic black holes that has come out of INTEGRAL was the discovery of the signature of strong polarization of the >300 keV spectrum of Cygnus X-1. This discovery is an indication that this spectral component is due to synchrotron emission probably from the radio jet that is present in the hard state. In this two year 2 Ms program we propose a continuation of these measurements with the aim of detecting changes in the hard state polarization properties to set strong limits on the hard tail in the soft state and to break degeneracies between the two families of models for the formation of the hard tail. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-2e8musj
title: 1320011

description: The survey of the Galactic Plane has been one of the main INTEGRAL scientific objectives because of the scientific potential of both new source discovery and detailed monitoring of already known sources. We propose for a total of 3.0 Ms of observations in AO13 and 3 Ms in AO14 to continue our Key Program started in AO8 for covering areas of the Plane with regular scans every orbit. For these AOs we selected a section of the Plane incorporating 3 sky regions that are rich in galactic sources (HMXB and SFXT in particular) and potential MeV/TeV sources.Our purpose is to regularly monitor known systems as well as to dramatically enhance the chances of discovering new systems or new outbursts from known sources. 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.In order to maximise the engagement of the scientific community we will continue to make the observations publicimmediately. The team will make as it has through AO8-12 the scw-resolution IBIS and JEM-X light curves (in twoenergy bands) and per revolution mosaic images publicly available through the web as soon as possible after theobservations have been performed. Any interesting source behaviour that emerges from our observations will beannounced 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-2kk5m1u
title: 8860095

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-2ktz09a
title: 0520029

description: We propose to conduct 	extbf{fixed-time} observations for 2x2uninterrupted INTEGRAL orbits (2x 2x233=926 ks) of thegalactic microquasar SS433 in two consecutive primary orbital eclipses near the face-on disk precession phase of the source in October 2007. The main goal is phase-resolved hard X-ray spectroscopy of the primary orbital eclipse and study its highly variable form.The phase-resolved spectroscopy is crucial to study the structure and physical parameters of hot rarefied corona at the center of the supercritical accretion disk in SS433 discoverd by previous INTEGRAL observations. Precise form of the eclipse is neededto constrain binary mass ratio in this system which is still controversial.  The proposal is not associated with the AO-5 Key Program. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-2kxch4z
title: 8899801

description: Galactic Plane Survey for AO 88
DOI: 10.57780/esa-2l13gx9
title: 0920015

description: A Key Programme is proposed for high-cadence monitoring of the inner spiral arms of the Galaxy with INTEGRAL paired with ToO observations of new transients with XMM-Newton (as well as with other telescopes). While these regions are already exposed thanks to the Galactic Plane Scans (GPS) many transients are being missed because of month-long gaps between scans of any particular region. Our proposed program (25.6 ks per revolution when visible for a total of 1.5 Ms during AO9) will complement the successful Galactic Bulge (GB) program by extending the monitored region of the Galaxy to the Inner Perseus/Norma Arm tangents on one side of the GB and the Scutum/Sagittarius Arms on the other. These fields are ripe with obscured high-mass X-ray binaries (HMXBs) Supergiant Fast X-ray Transients (SFXTs) as well as other hard X-ray emitting sources (e.g. microquasars low-mass X-ray binaries bursters and magnetars) that INTEGRAL is well-suited to finding thanks to its large field of view and angular resolution at high energies. Source light curves in 2 energy bands for ISGRI and JEM-X will be provided to the community permitting rapid dissemination of results which will enable prompt follow-up of interesting events. This program will have an immediate and lasting impact on studies of transient and variable hard X-ray populations. [truncated! Please see actual data for full text]
DOI: 10.5258/soton/d3176
title: Dataset in support of thesis titled "Numerical Study of Transient Response in Amperometric and Potentiometric Glucose Biosensors"

description: This dataset contains:
1-.gif files containing animations for the reaction-diffusion simulations for different input variables. Animation Created in MATLAB R2022a. 
2-.gif files containing animations for the 3D Case diagram created in Wolfram Mathematica 13.1. 
3-.m files containing MATLAB code for the readers to reproduce the simulations. Files titled "ND_PS_EK_PencilE_SubStep_v3.mlx" and "Fit_PS_PencilE_Caller.mlx" are associated with Chapter 4.
DOI: 10.57780/esa-2mxweof
title: 0320068

description: We propose the first hard X-ray survey of the closest giant molecular cloud complex Taurus-Auriga to search for isolated stellar mass black holes accreting from the dense gas in the GMC. Black holes are increasingly found in X-ray binary systems as luminous hard X-ray sources and must exist as isolated objects which could be detected by their Bondi-Hoyle accretion from the dense ISM of a GMC. Making conservative assumptions about accretion efficiencies as being only 1E-5 a 10Msun stellar mass BH with space velocity 10 km/s passing through the cloud should be detectable by IBIS in a 150ksec observation. The estimated total stellar BH population in the Galaxy would predict several in this GMC complex which optimally fills the IBIS field of view.  At only 140pc distance hard X-ray luminosities of only 10^32 erg/s can be detected making this the most sensitive possible survey for isolated stellar mass BHs possible with INTEGRAL. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-2q5r81v
title: 1820004

description: While INTEGRALs instruments typically observe Galactic sources on the hundreds to thousands of pc scale the closest vicinity to Earth the solar system has received almost no attention from INTEGRAL in its 18 yr mission life time. During an Earth occultation observation IBIS could observe auroral X-ray emission from Earth in real time showing the interactions of the solar wind with the magnetic field of Earth. Such auroral emission has also been measured from Jupiter and found to not only be powered by solar activity but by the planet itself. Most of the phenomena are restricted to photon energies of few keV but electron bremsstrahlung can be expected up to the hard X-ray regime as suggested from a population of relativistic electrons in the Jupiter system. The true acceleration mechanism in the Jupiter system and mechanisms of its local photon emission are yet to be determined.An almost neglected but significant contribution to the diffuse emission above 100 keV comes from the interaction of CRs with asteroids in the Main Belt (MB) between Mars and Jupiter: interactions of CRs with the asteroid material lead to the formation of excited nuclei followed by de-excitation and resulting in gamma-ray line emission together with a bremsstrahlung continuum. Especially at the 511 keV line such a contribution from the ecliptic may result in false inferences for the size of and flux from the bulge halo and disk. The modulated CR spectrum from local contributions by Jupiter might further alter these expectations. For this reason INTEGRAL observations of Jupiter which is capable to accelerate particles on its own and of small solar system bodies along the ecliptic as targets for Galactic CRs will provide unique insights about the impact of local particle acceleration. Together with the in-situ particle detectors onboard the Juno mission this presents one of the rare opportunities to link local measurements with [truncated! Please see actual data for full text]
DOI: 10.57780/esa-2rdjqyb
title: 0120024

description: We propose to probe with INTEGRAL dust enshrouded AGN in two Ultraluminous Infrared Galaxies (ULIGs): 1) Mrk 231 which is the most luminous object of this class in the Local Universe and 2) IRAS 0518-25 which is an extremely warm infrared object. The purpose of this proposal is to measure the integrated flux in the 20-1000 keV energy band before detailed spectroscopy with high energy resolution. These two galaxies are being observed under related proposals with XMM. The energy output in the XMM and INTEGRAL energy bands will allow to assess which is the relative contribution of the AGN to the overall radiative power in the most luminous galaxies of the Local Univers. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-2tbvl7c
title: 1520002

description: Cas A and Tycho are remnants of a core-collapse and a type Ia supernova explosion respectively. Radioactive 44Ti  has been observed from these two relatively young supernova remnants and is believed to originate from the deep interiors of supernova explosions representing physical conditions that are otherwise difficult to explore. 44Ti  nucleosynthesis is assumed to occur in alpha-rich freeze-out from Si burning or NSE burning. The amount of 56Ni which also is produced in the supernova interior has been estimated indirectly  together the 44Ti/56Ni ratio is a key diagnostic of the inner processes in a supernova explosion. Here we propose deep observations of the sky region including both Cassiopeia A and Tycho in order to (1) advance Cas A 44Ti line results to sufficient quality for line shape and line ratio tests that reflect inner ejecta kinematics and (2) obtain sufficient exposure for Tycho to confirm the 44Ti signal reported from other instruments in the hard X-ray range. The SWIFT detection of 44Ti from Tycho a SN Ia remnant adds to the puzzle of 44Ti synthesis and the origins of cosmic 44Ca. 44Ti deposits radioactive energy in nebular-phase supernova remnants through positrons but the escape of positrons into interstellar space is an issue. Our planned observations will (3) constrain any local positron annihilation in the remnant itself thus possibly explain the disk faintness in 511 keV gamma-rays. Young supernova remnants are also believed to be predominant sources of cosmic rays. Our observations aim (4) to search for direct evidence signs of local cosmic-rays within the remnants such as nuclear de-excitation gamma-ray lines and continuum emission from Bremsstrahlung. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-2uskzc3
title: 0120133

description: We propose a 900 ksec observation of the remnant of the supernova of 1006 AD the Rosetta Stoneobject for the study of electron acceleration to very high energies. The combination of IBIS and Jem-Xspatial and spectral coverage should allow testing of the hyposthesis that the emission above 3 keVis dominantly synchrotron and should either detect or put limits on a contribution from nonthermalbremsstrahlung. The angular diameter of SN 1006 30 is large enough that IBIS will have sufficientspatial resolution to perform a simple discrimination on the highest-energy detectable hard X-rays:synchrotron emission should come from two opposing limbs while bremsstrahlung should have amore uniform ring morphology. Jem-X will resolve SN 1006 with about 10 beams across its diameterample to search for a bremsstrahlung contribution and comparable to ASCA resolution at thermalX-ray energies. The energy range of 5 to 50 keV shows the lowest-energy suprathermal cosmic-rayelectrons through bremsstrahlung and the highest-energy electrons through synchrotron radiation.Quantitative inferences from detections or limits can include the efficiency of shock acceleration ofelectrons the maximum energies to which electrons can be accelerated and indirect constraintson the mean remnant magnetic field strength. INTEGRAL can make a major  contribution to theunderstanding of nonthermal emission from this important object and through it to the understandingof acceleration of particles at shocks anywhere in astrophysics. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-2usrr2g
title: 1620008

description: We propose to continue the renewed INTEGRAL-multiwavelengh 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 the new facilities we included in the past AOs (the Sardinia radio telescope in the radio domain and NICER at soft X-rays) and take the opportunity of a collaborative effort with the HMXT team that should start in April 2018 with simultaneous HMXT observations tentatively schedule during our next INTEGRAL pointings. We will also include infrared/optical (Grantecan and ESO) through  dedicated proposals.  We require 45 ks 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. Points 1) and 2) can be done by looking into the interplay between the soft and hard X-ray emitters (therefore with JEM-X and IBIS) point 3) and 4) needs contemporaneous broad band coverages and timing studies. 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.  It should 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 on a dozen of exciting Galactic sources. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-2yazfpn
title: 0520005

description: Evidence continues to build 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 possess 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 to continue our successful AO-1 2 3 and 4 proposals and request 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 for one suspected SGR and for one unknown SGR.  Our total request however is for just TWO 240 ksec ToOs.  This is one of two SGR proposals being submitted by nearly identical teams.  The other proposal (M. Feroci  PI) 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-2yfp70i
title: 8860282

description: OMC FF sequence ISOC V10 onwards: sequence of ff measurements with LED on/off followed by a DC cal.
DOI: 10.57780/esa-32ufcc6
title: 2070015

description: INTEGRAL TOO observations of Swift J1727.8-1613.
DOI: 10.57780/esa-33e8s5j
title: 0820029

description: This proposal is a next in the set of proposals aimed on obtaining legacy-level observational datasets on the Milky Way Galactic disk. The ultimate goal of the entire project (which started in AO4-A06 continue in the current AO7 and which we plan to continue it in subsequent AOs) is to have {it model independent} and {it systematics free} measurements of the fluxes in nuclear lines (511 keV annihilation emission 1.8 MeV Al$^{26}$ and 1.17 MeV and 1.33 MeV Fe$^{60}$ lines) and a broad band spectrum of the Galactic background emission which at different energies is provided either by the cumulative emission of faint Galactic sources or by the interaction of low energy cosmic rays with the interstellar medium.  Our strategy was supported by INTEGRAL TACs during previous AOs and now we propose to continue the coverage of the Galactic disk with scanning observations. Taking into account the unique combination of properties of INTEGRAL instruments -- broad band coverage large fields of view and possibilities to eliminate the contribution of discrete sources from the total measured photon flux {f the proposed strategy is the best possible usage of the valuable INTEGRAL time}. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-33r87hj
title: 0520056

description: We propose one 1000ks exposure of blazar PKS 1510-089. The source is bright and have very hard X-ray spectrum.  High quality data obtained by INTEGRAL will allow us to determine the primary Comptonization mechanism for this source. We also plan to look for a location of the spectrum softening in soft gamma-rays and for soft X-ray excess. This information is crucial to accurately derive parameters of models of blazars. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-351eje1
title: 0320032

description: We  propose for 260 ks of INTEGRAL time to perform a ToO observation of a transient  millisecond X-ray pulsar in outburst. The target can be either one of the five known transient accreting millisecond X-ray pulsars in the case of a new outburst or a newly observed object of this class. The program will be performed in coordination with a 150 ks observation on the XMM-Newton satellite in order to study in detail the broad band spectrum and timing properties of the source during its outburst. Since these sources are a new class of astronomical objects this coordinated study will be essential for providing a detailed spectrum from soft to hard X--ray energies.   This will allow us to disentangle the contribution of soft black body reflection (if any) and hard Comptonized spectral components as well as the detection of discrete emission/absorption features (if present).  In particular we will be able to study the energy spectrum of these sources which is usually observed to be quite hard even in outburst in a broad band  energy range and with unprecedented high sensitivity above 20 keV. The INTEGRAL observation will also allow  a timing analysis in an interesting and yet unexplored energy range.This proposal was submitted for the INTEGRAL A02 and was approved by the TAC with the highest priority but has not been triggered so far. For the A03 program we have proposed for simultaneous observations with XMM-Newton. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-357m9nf
title: 8860050

description: OMC FF sequence ISOC V10 onwards: sequence of ff measurements with LED on/off followed by a DC cal.
DOI: 10.57780/esa-36d6fvr
title: 1120032

description: We propose to continue our Key Programme that consists of high-cadence monitoring of the inner spiral arms of the Galaxy with INTEGRAL paired with ToO observations of new transients with XMM-Newton and Swift. The INTEGRAL Spiral Arms (ISA) program (25.6 ks per spacecraft revolution during visibility periods for a total of 1.2 Ms) complements the successful Galactic Bulge (GB) program by extending the monitored region of the Galaxy to the Inner Perseus/Norma Arm tangents on one side of the GB and the Scutum/Sagittarius Arms on the other. These fields feature a high density of obscured high-mass X-ray binaries (HMXBs) including Supergiant Fast X-ray Transients (SFXTs) as well as other hard X-ray emitting sources (e.g. microquasars low-mass X-ray binaries and magnetars) that INTEGRAL is well-suited to finding thanks to its large field of view and angular resolution at high energies even in crowded regions of the sky. Mosaic images and source light curves in 2 energy bands for ISGRI and JEM-X are being provided to the community (http://sprg.ssl.berkeley.edu/~bodaghee/isa/) permitting rapid dissemination of results which enable prompt follow-up of interesting events. The ISA project represents the cornerstone of our ongoing study of transient and variable hard X-ray populations in the Milky Way. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-3832sf2
title: 1920013

description: The 511 keV electron-positron annihilation signal from the bulge region of the Milky Way puzzles both observers and theorists. While INTEGRAL/SPI made great progress in characterising the emission and its spectral appearance there is an ongoing debate about the actual origin of the signal: Many unresolved point sources or truly diffuse emission from annihilation in the interstellar medium. A smooth distribution of subthreshold sources has been suggested in two alternative scenarios: Bisnovatyi-Kogan et al. (2017) focused on the cumulative effect of intermittently flaring stars producing a 511 keV line through positrons from decays. Bartels et al. (2018) proposed the idea of accreting compact objects in quiescence that steadily eject subrelativistic pair-plasma into their surroundings. These may also be related to the unresolved GeV emission which is thought to originate from a population of millisecond pulsars in the Galactic bulge. Both studies suggest that their models could be readily tested through the observation of globular clusters (GCs) at 511 keV. In both cases the predicted flux from individual GCs is too low for SPI to be detectable however the whole Milky Way population is estimated to add up to more than 10% of the diffuse flux of 1e-3 ph/cm2/s. The relative fluxes from GCs would then allow to distinguish between models. Most GCs are located in the same regions where the diffuse 511 keV flux is also strong so that individual point sources will not outshine the background. For this reason we propose long-term observations to target a region that includes expectedly-strong GCs which would show a high contrast against the diffuse emission. Based on detailed modelling of a flaring star scenario and correlations from GeV emission to predict the 511 keV emission in GCs we propose a multi-year program to observe seven GCs in two neighbouring and underexposed spots in the sky for 500 ks each in AO18 and  [truncated! Please see actual data for full text]
DOI: 10.57780/esa-3ag1wqk
title: 8860292

description: SAS Calibration in Rev 1405
DOI: 10.57780/esa-3en8gbk
title: 1970004

description: INTEGRAL DDT Observations of Mrk 501 coordinated with EHT XMM-Newton