cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-60avd1f
title: 092141

description: We propose XMM-Newton observations of two radio-loud magnetars XTE J1810-197and Swift J1818.0-1607 which are still recovering from their most-recentoutbursts. XTE J1810-197 is still exhibiting a soft X-ray flux a factor 2 largerthan the nominal value due to the continued existence of a thermal hot spot.The source is currently displaying unique temporal properties not observedbefore neither in outburst nor quiescence. On the other hand SwiftJ1818.0-1607 has decayed by 2 order of magnitude so far solely driven by an areashrinkage with no sign of any cooling  an expected property of most magnetartheoretical scenarios. Hence establishing the X-ray evolution of these twosources towards quiescence is crucial for a better understanding of the physical driver of magnetar outbursts. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-61x6bua
title: 094256

description: We propose a fulfill program for short 8ks observations of 15 optically selectedTDEs at very late-times ($>>$ 1 year). This program will help us to (1)investigate the timescale of delayed X-ray brightening  (2) probe the existenceand formation of a corona and test the efficiency of Comptonization atlate-times  (3) measure the mass accretion rate which directly tracks the massfall-back rate at late times -- all at low cost and no scheduling constraints. [truncated! Please see actual data for full text]
DOI: 10.15468/dl.kkeztp
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "TypeStatus is ALLOLECTOTYPE"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0014178-250802193616735/datasets/export for details.
DOI: 10.57780/esa-66pq8nf
title: 092428

description: AGN outflows impact the evolution of supermassive black holes host galaxies.Using an ambitious multi-wavelength campaign on Mrk766 we propose to achieve anew level of physical understanding for these enigmatic winds by studying theextra-deep RGS spectrum and the variability of the EPIC-pn data. Throughmonitoring of the ionised absorbers using our new time-dependent photoionisationmodel TPHO we will unambiguously determine the density location and geometryof the different outflow components. These unprecedented constraints allow us toestimate the effect of AGN outflows on their environment by measuring their massflux and kinetic luminosity. We propose a joint xmm (600 ks) and nustar (300 ks)mapping campaign of the well-known and highly variable Mrk766. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-6qsrlpt
title: 092028

description: PSR J1653-0158 is exceptional with the shortest orbital period of any pulsarbinary the largest neutron star mass function and an unusual H-free companionbeing evaporated by pulsar irradiation. Its optical light curve shows aremarkable hard-spectrum veiling flux likely synchrotron emission from anIntraBinary Shock (IBS) and the PL X-ray spectrum indicates IBS domination inthis band as well. Measurement of this IBS components light curve and spectrumin the critical UV-X-ray band is the key to modeling the system. Since J1653 isan exemplar of short period binary evolution and is a major contributor towardsNS mass limits constraining the dense matter equation of state a sensitive XMM-Newton observation of this source offers an important probe of compact object physics. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-74753mb
title: 092317

description: Modelling of the waveform of the X-ray pulsations of accreting ms pulsars (AMSP)is one of the most promising ways to constrain the equation of state of neutronstars. However it requires an extremely high number of counts to break thedegeneracy between the many parameters that shape the X-ray pulse profiles. Thepolarimetric information granted by the forthcoming IXPE mission will measurethe geometry of the hot spots independently easing the requirement. We proposea 120 ks XMM-NuSTAR ToO observation of the next outburst of an AMSP to measurethe pulsar ephemeris and fold simultaneous IXPE data model the broadbandspectrum and derive a high statistics energy-resolved pulse profile. Theproposed observation will measure the mass and the radius with an accuracy of a few per cent. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-7g70w0q
title: 094315

description: GSN 069 is the first galactic nucleus where quasi-periodic eruptions (QPEs) havebeen identified. Recent analysis of its long-term X-ray evolution coupled withlong XMM-Newton exposures reveals that QPEs disappear above a bolometricluminosity threshold of 3.5e43 erg/s of the quiescent emission. If confirmedthis observational fact is highly constraining for QPE models. We request oneTOO observation of GSN 069 to confirm the absence of QPEs above threshold andwere they instead be detected to characterise their properties at so-farunexplored high luminosity levels. We propose a set of joint Swift monitoringobservations that will be used to trigger the proposed XMM-Newton TOO. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-7mczvs8
title: 092270

description: Rapidly accreting QSOs are unique laboratories to understand supermassive blackhole growth and AGN feedback. Recent observations show that surprisingly thesesources do not differ much from slowly accreting QSOs. Some of these sourcesshow a unexpected variability notably in X-rays. Results from eROSITA and ourrecent monitoring of SMSS J1144 (z=0.83 log M/Msun = 9.4 Lbol/LEdd = 1.4) show that this QSO is highly variable on timescales ranging from weeks to a fewmonths. We propose a Swift monitoring of the source that will allow us totrigger two XMM-Newton + NuSTAR ToO to catch the source in the low- andhigh-flux states. This will allow us to better measure the properties of thesource identify signs of reflection and feedback and understand the origin of the unusual variability. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-7oiz9ez
title: 093499

description: XRISM COORDINATIONS#1 SS 43  50ks#2 4U1916-053  150 ks#3 NGC4151 150 ks = 3x50 ks
DOI: 10.57780/esa-809nwcu
title: 092302

description: 1RXS J050526.3-684628 is a super soft source (SSS) in the Large Magellanic Cloud(LMC). A recent study reported the discovery of coherent pulsations andidentified the system as an accreting White Dwarf (WD). Moreover the study ofhistoric X-ray and optical properties of J050526 have revealed it to be aremarkably long-lived post-nova SSS (~30 year duration) reaching its peak fluxaround 2013. Nevertheless the lack of multiple deep X-ray observations hampersthe study of the system and prohibits further testing of theoretical models. Werequest a 60 ks XMM-Newton observation to study the evolution of its spectraland temporal properties during the decay of its flux. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-81duvag
title: 092164

description: The local Seyfert 2 galaxy MCG+11-11-032 has been suggested as the possible hostof a sub-pc supermassive black hole binary (SMBHB) based on a tantalizing buttentative detection of a double-peaked Fe K line feature in its Swift-XRTspectrum. The observation of a double Fe line could be a powerful method forSMBHB detection and characterization but because of the low SNR of the XRTdata its nature requires confirmation. We propose to use the unique highsensitivity and spectral resolution of XMM at 6 keV to robustly examine thisfeature. This program could for the first time confirm an SMBHB through its FeK emission and pave the way for future studies which will have importantimplications for observing the electromagnetic signatures of SMBHBs in the gravitational-wave emitting regime. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-90nw8h9
title: 092167

description: Shock waves are one of the most important phenomena to understand the growth ofgalaxy clusters and large-scale structures. In particular for accretion shocksdue to faint emission at the expected region no study has yet been performed onan individual object. Here we propose deep 228 ksec XMM-Newton and a Chandrasnapshot (25 ksec) observations of the bridge connecting the massive galaxyclusters Abell 399-Abell 401 to identify and characterize the nature of a shockonto the bridge which is potentially an accretion shock. To provide solidconfirmation and a better understanding of the possible shock structure theproposed observations together with our multi-wavelength (radio SZ) data aim todetermine the temperature and surface brightness profiles of the shock candidate. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-9zj13h3
title: 094015

description: A substantial fraction of accreting IMBHs show suppressed X-ray emissioncompared to the expectation from the active galactic nuclei (AGNs) accretiondisk-corona connection. They also show unusally strong X-ray variability. Wepropose a systematic XMM-Newton survey (8-25 ks exposures) of the 13 extremelyX-ray weak (by factors of >10) accreting IMBHs selected from previous Chandrasnapshot coverage. We aim to identify large-amplitude X-ray variability andcharacterize X-ray spectral properties. We will determine whether absorptionfrom clumpy disk wind associated with super-Eddington accretion is responsiblefor the extreme X-ray weakness and X-ray variability and thus to unify theseIMBHs and super-Eddington accreting AGNs under the same physical scenario. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-a0lkp11
title: 088540

description: The state-of-the-art X-ray observatories XMM-Newton Chandra} and Swift havebeen actively collecting soft X-ray imaging data for more than a decade. We arelaunching a Live Search for x-ray Treasures (LiST) project aiming to search forobjects of important science value serendipitously detected by theseobservatories as soon as new data become public. We request a 24 ks XMM-NewtonToO observation to a very important X-ray object such as tidal disruptionevents and off-nuclear hyperluminous X-ray sources that we might discoverduring XMM-Newton AO20 from our LiST project in order to constrain theirlong-term variability and understand their nature. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-cm0ut4v
title: 094339

description: Understanding the major sources of high-energy ionizing photons and where theyoperate is key to determining how reionization of the Universe proceeds at z >6. This program will target a carefully selected sample of 11 star-forminggalaxies with strong nebular He II emission where photoionization modelingsuggests ultra-luminous X-ray sources (ULXs) are the most plausible source ofhigh-energy ionizing photons. The results will provide a critical benchmark forULX ionizing impact including a first constraint on the EUV-to-soft X-rayionizing continuum from extreme emission line galaxies powered by ULXs. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-dft1vw7
title: 094253

description: Constraining the population of intermediate black holes (IMBHs) can help solveone of the long-standing problems in modern astrophysics the origin ofsupermassive black holes (SMBHs). Among the 305 optically selected IMBHcandidates (3e4<MBH<2e5 MSun) published to date which reside in galaxy centersand appear as weak type-I AGN only 24 are confirmed in X-rays and 23 more areawaiting confirmation with Chandra. We propose an XMM-Newton fulfil program for40 IMBH candidates to probe lower Eddington rates and BHs residing in non-dwarfhost galaxies. Our program will help to understand the masses of black holeseeds. This proposal was accepted in AO-22 but no observations have been madeas of Oct/2023. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-dqmic1t
title: 092032

description: We propose a simultaneous 240 ks XMM  120 ks NuSTAR observation to study theproperties of the disk wind detected in Mrk231. The nearby ULIRG/QSO Mrk231 isan exceptional QSO and a prototypical object where we are viewing the feedbackin action with overwhelming evidence of multiphase outflows. Mrk231 is a BALQSO where both a X-ray wind and galaxy-scale outflows were detected and appears to follow the prediction for an energy conserving scenario. Despitethat the physical properties of the X-ray wind are poorly known. Our proposedobservation will be the first broad-band observation deep enough to properlyinvestigate this wind. This observation will allow us to put strongerconstraints on the energetics of the disk wind and test if  it is one of the few energy conserving winds. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-e4bmnvj
title: 094508

description: The 10 deg2 Euclid Deep Fornax Field (EDFF) will be the foremost extragalacticmedium-area deep field due to its unique multi-lambda coverage. We aim toprovide the X-ray view by mapping the entire EDFF at 40ks depth for untoldlegacy value. The XMM data and associated surveys will enable major advances inthe study of AGN and galaxy clusters including: deep characterisation of Euclidclusters and their selection function  robust measures of cluster scalingrelations to z=1.5 and the group regime  the study of rare clusters and AGN in avariety of environments  and revealing the link between AGN feedback and starformation to z>3. We will deliver a complete validated multi-lambda legacydataset that will greatly enhance the AGN and cluster science from the 15000 deg2 Euclid Wide survey. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-f29x6ts
title: 092347

description: The study of X-ray transients improves our understanding of the extreme physicalprocesses in the Universe. The newly launched EP-WXT pathfinder is a wide-fieldlobster-eye X-ray telescope in the 0.5-4 keV band which can perform skymonitoring in soft X-rays. With improved sensitivity of (3-4)E-11 erg/(cm2??s)it has the potential to discover new X-ray transients and variables. Follow-upobservations with large X-ray observatories are essential for sourceidentification localization and characterization. We propose an XMM-Newton ToOprogram to carry out follow-up observations for scientifically interesting newX-ray transients. This program will also provide experiences for futurefollow-ups from the EP satellite which has a much larger FoV of 3600 deg2 and is to be launched in 2023. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-f6q5c1t
title: 094511

description: The 10 deg2 Euclid Deep Fornax Field (EDFF) will be the foremost extragalacticmedium-area deep field due to its unique multi-lambda coverage. We aim toprovide the X-ray view by mapping the entire EDFF at 40ks depth for untoldlegacy value. The XMM data and associated surveys will enable major advances inthe study of AGN and galaxy clusters including: deep characterisation of Euclidclusters and their selection function  robust measures of cluster scalingrelations to z=1.5 and the group regime  the study of rare clusters and AGN in avariety of environments  and revealing the link between AGN feedback and starformation to z>3. We will deliver a complete validated multi-lambda legacydataset that will greatly enhance the AGN and cluster science from the 15000 deg2 Euclid Wide survey. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-gtser47
title: 088054

description: We propose a Large Program of 10-day XMM-NuSTAR consecutive monitoring (30ks/day XMM 20 ks/day NuSTAR) triggered by Swift of a high-inclination BlackHole LMXB during the Hard-to-Soft transition. This will allow us tosimultaneously and accurately 1) determine the X-ray broadband spectral shapeand 2) detect the wind absorption lines. These are key ingredients to put firmconstraints on (a) the evolution of the wind physical properties with theaccretion state and (b) its possible association with the jet (thanks toproprietary simultaneous IR-Radio observations). [truncated! Please see actual data for full text]
DOI: 10.57780/esa-gugbvw0
title: 092155

description: We propose a 30 ks XMM-Newton observation to probe the candidate supernovaremnant SNR J0451-6717 which we recently discovered around the radio pulsar PSRJ0451-67 in the Large Magellanic Cloud (LMC). The observation will allow us tostudy the morphology and X-ray spectrum of SNR J0451-6717 in much more detail asis possible with the eROSITA data which led to its discovery. We will alsosearch for emission from the pulsar either as an interior hard source or as anon-thermal component in the spectrum. We initiated new radio observations toreveal the non-thermal radio emission of the SNR and to improve the spin-downparameters of the pulsar. Combining the new X-ray data with new radio data isessential to establish the association of PSR J0451-67 with the SNR and determine their properties. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-h2fn8gf
title: 092130

description: We propose to acquire the first deep X-ray observations of a fast and blueoptical transient (FBOT) at very late times. FBOTs are a new class of transientswith luminosities and time scales that challenge traditional SN models. As aresult the intrinsic nature of their energy source is unknown. Motivated by ourrecent finding of persistent luminous X-ray emission at the location of thenearest FBOT AT2018cow  we propose deep XMM observations of this source at$delta t$$>$$5$ yrs. By mapping the long-term evolution and spectrum of thisX-ray source these observations will shed light on the connection of FBOTs withmanifestations of accreting BHs. By exploring a new part of the phase spacethis proposal opens a new window of investigation on this new class of engine-driven transients. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-h5i0mal
title: 094196

description: The CARLA survey provides the best sample of high-z (1.3<z<3.0) cluster andprotocluster candidates around RLQSO and HzRG.  Theirestimated total mass (M>1E14 Msun) would correspond to significant ICM emissionspread on more than 1.  We propose a medium-deep survey of asubsample of 8 CARLA targets to identify and characterize their ICM the nonthermal emission from the relativistic electrons in the jetsand the unresolved emission from the nucleus. This project can impact the studyof ICM formation in a crucial epoch for the growth of thecosmic large scale structure the feedback process in high-z clusters theproperties of HzRG and also the enhancement of AGN in high-z LSS. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-hdg14bm
title: 093139

description: We propose a 60ks observation of a new bright (V<7.5) nova likely tobe detected in gamma-rays. The observation will probe shocks withinthe nova ejecta constrain the non-thermal particle acceleration and gamma-rayproduction mechanisms. We will put an upper limit on the particle accelerationefficiency by comparing thermal X-ray and optical to GeV luminosity and searchfor predicted non-thermal X-rays. Understanding shocks in novae is r^ant forother shock-powered transients including Type IIn supernovae tidal disruptionevents and stellar mergers. NuSTAR is the only instrument capable of detectinghard X-rays from novae simultaneously with the GeV emission. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-ht8y57t
title: 094416

description: The ULX XMMU J122939.7+075333 in the globular cluster RZ 2109 in the Virgogalaxy NGC 4472 displays recurrent soft X-ray flares resembling QPEs ingalactic nuclei. Its optical emission is characterized by a bright and broademission line which is variable on long timescales. The first simultaneousX-ray and optical spectroscopic observation of this peculiar object will explorethe possible relation between the optical line variability and the X-ray flaringactivity. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-htawiah
title: 094365

description: We propose a new intense monitoring campaign consisting of 12x60 ksec XMM-Newtonobservations coordinated with 6 x40 ksec NuSTAR exposures of MCG -03- 58-007which is a powerful and extremely variable disk wind. Past X-ray observations ofthis remarkable wind revealed a dramatic and fast variability of the velocity ofthe disk wind which dropped from  v/c~-0.2 to v/c~-0.074 in just 16 days. Suchvariability is at odds with other disk winds and challenging for current modelsand therefore it deserves a further investigation. With the new observations wewill: (i) confirm the velocity variations and their timescales (ii) probe thepresence of multiple velocity components and (iii) investigate the windacceleration mechanism. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-hxpjhnc
title: 094000

description: We propose to continue collecting XMM-Newton snapshot observations of a sampleof rapidly rotating B-type stars. These observations should unveil the X-rayemission of a putative small-scale corona associated with localized magneticfields produced by a dynamo mechanism in a sub-surface convective layer. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-j4hnq63
title: 095379

description: No abstract found for current proposal  (This is a scientific proposal for an ESA mission. For specific information please contact ESDC Helpdesk -  https://support.cosmos.esa.int/esdc)
DOI: 10.15468/dl.4dzwg4
title: Occurrence Download

description: A dataset containing 559 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Monarcha castaneiventris)",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "License is one of (CC-BY 4.0, CC0 1.0)"
 ]
}

 The dataset includes 559 records from 11 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0014180-250802193616735/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.57780/esa-jj716zp
title: 094246

description: The Planck Mission has provided a statistically representative datasetconsisting of 1653 clusters identified through the Sunyaev-Zeldovich (SZ)effect over the entire sky. Out of these clusters 380 have been observed so farat radio wavelengths by the LoTSS-DR2 and EMU surveys and of these 120 arefound to host diffuse radio sources (radio relics and radio halos) associatedwith the intracluster medium (ICM). We propose XMM-Netwon observations (162 ksin total) for 9 PSZ2 lowest-mass clusters in which diffuse radio emission hasbeen detected but for which no pointed X-ray observations are available. We willinvestigate the interplay between thermal and nonthermal components of the ICMthe scaling relations and explore the origin of low mass halos and relics which are poorly constrained. [truncated! Please see actual data for full text]
DOI: 10.15468/dl.rhuhrm
title: Occurrence Download

description: A dataset containing 5 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Mystriophis mordax"
 ]
}

 The dataset includes 5 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0014182-250802193616735/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.