cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-hoxibnm
title: 085221

description: Spin measurements for high-mass active galactic nuclei are currently very sparse comma  but are critical for testing correlations between mass and spin  hinted at in the current sample of AGN with spin constraints comma  and testing  theoretical models of supermassive black hole growth. We request a coordinated broadband X-ray observation of PG1426+015 comma  which has the largest reverberation-mapped mass to date openParlogCORCHETE_OPENMbh-MsunCORCHETE_CLOSE = 9.01 openPar+0.11 comma -0.16closeParclosePar comma  with XMM-Newton  openPar100ksclosePar and NuSTAR openPar100ksclosePar. The quality of the data will enable us to robustly  search for relativistically broadened iron emission comma  an unambigous signature  of reflection from the innermost accretion disc comma  and take an important first  step towards constrining the spin for this key source.
DOI: 10.57780/esa-hqoo4gc
title: 086438

description: The coalescence of binary supermassive black holes openParSMBHclosePar in galaxy mergers is thought to constitute the strongest source of gravitational waves. Theory suggests these waves carry momentum causing the merged black hole to experience a velocity recoil or kick that displaces or indeed ejects it from the center of its host galaxy. We request the fi rst XMM-Newton and HST imaging of RXJ1756.4+5235 comma  a source with an o ffset broad line point source that is offset from the nucleus of a nearby galaxy to resolve whether the source is a potential recoiling black hole or a close dual AGN.
DOI: 10.57780/esa-hsel9jc
title: 086547

description: Mrk 590 is one of the best monitored changing-look AGN. After a decay during which the continuum dimmed and the optical broad line disappeared together with the soft X-ray excess comma  Mrk 590 is now awakening and broad line and soft excess have re-emerged. We request two relatively inexpensive openPar25 ksclosePar observations comma  that will be spaced by about 6 months comma  to follow the X-ray spectral evolution during the current rise. The recently discovered QPE phenomenon openParMiniutti et al 2019 comma  NatureclosePar may be invoked to account for the spectacular variability of this and other changing-look AGNs. If so comma  the analogy predicts that the soft X-ray excess should increase in strength and temperature during the rise.
DOI: 10.57780/esa-i5vpuof
title: 084038

description: L dwarfs in close binaries openParperiod virgul100minclosePar with white dwarfs are rare although expected to be the majority and representing the end stages of cataclysmic variable evolution openParperiod-bouncersclosePar. The detection of X-rays from WD - L dwarf openParWDLDclosePar binaries is an efficient diagnostic of accretion since L dwarf coronal emission is below the sensitivity of current instrumentation. XMM-Newton is the only facility able to study these faint comma  moderately soft X-ray emitters. In AO14 we detected X-ray orbital modulation in a known magnetic short-period WDLD system comma  thus setting a tight constraint on the mass transfer rate. We here propose to continue our survey observing the only other 2 magnetic short-period WDLDs aiming at understanding the evolutionary stage of such systems.
DOI: 10.57780/esa-ic3hy0g
title: 086411

description: We propose a deep XMM-Newton observation openPar210 ks including overheadsclosePar of MRC 0116+111. This unique galaxy group is known to host a remarkably bright extended diffuse radio emission - likely witnessing of a past extreme AGN feedback episode comma  along with a moderate X-ray luminosity and gas temperature. Since its radio-X-ray flux ratio is among the highest ever reported for a diffuse source comma  it is an ideal target to search for non-thermal comma  inverse-Compton openParICclosePar X-ray emission. Assuming that the average group magnetic field is less than 10 microG comma  the proposed exposure will constrain the properties of the thermal gas glowing below 2 keV and detect significantly the non-thermal emission comma  which dominates beyond that energy.
DOI: 10.57780/esa-idtrrv0
title: 086481

description: In recent work done with XMM-Newton comma  we have discovered that ultraluminous X-ray sources have strong relativistic winds in agreement with theoretical predictions of super-Eddington accretion. Such winds vary on timescales of days and can become optically thick enough to block and reprocess the disc X-ray photons comma  thus changing the spectral shape of the source into an ultraluminous supersoft X-ray source. We propose to test this hypothesis comma  by studying a transitional object where the wind is so strong that it is already causing significant absorption of the harder X-ray continuumdoublePoint NGC 55 ULX. A 130ks XMM observation triggered during a high X-ray flux state will enable to perform time--flux-resolved X-ray spectroscopy of the wind and probe the transition from supersoft to soft ULX.
DOI: 10.57780/esa-inf5ik1
title: 085205

description: Following a series of remarkable recent discoveries comma  we now know that some of the most luminous members of the  ULX-ray source population are actually powered by highly super-Eddington neutron stars. Five such systems are now known comma  but based on the long-term variability characteristics exhibited by these sources comma  we have compiled a sample of 19 additional ULX pulsar candidates from the broader ULX population. Here we propose a co-ordinated target of opportunity observation with XMM openPar100ksclosePar and NuSTAR openPar100ksclosePar of one of the most promising of these candidates comma  NGC7090 ULX comma  when the source is bright. Our main aims are to search for pulsations in order to test our prediction that this is another ULX pulsar comma  and constrain the broadband spectrum.
DOI: 10.57780/esa-ion2nt7
title: 086111

description: Recently a large number of rotation period measurements of low mass stars of type M have become available. Surprisingly comma  one finds that in addition to the well-known rapid rotators a population of very slowly rotating M dwarfs with rotation periods exceeding 100 days. These slow rotators pose a challenge for the usual rotation- activity paradigm comma  since about a third of these stars have been detected in the ROSAT all-sky survey comma  even though the RASS data did not probe significantly deeper than the saturation limit for stars of masses below 0.6 MSun. We thus propose XMM follow-up for a complete sample of nearby comma  undetected low mass stars with long rotation periods down to a sensitivity limit of L_X-L_bol virgul 2 10**-5 to study the relation between X-ray activity and rotation in these stars.
DOI: 10.57780/esa-j0iurv0
title: 085278

description: This is a coordinated HST+XMM-Newton program to address the conditions that affect habitability on Earth-like planets around Sun-like stars. Both wavelength regimes openParfar-UV with HST comma  X-rays with XMMclosePar are needed to constrain models sufficiently to represent realistic conditions. An approved TESS program for our targets will provide additional information on surface inhomogeneities openParspotsclosePar and their sizes and locations so that that can be taken into account as well. The FUV and X-ray fluxes from young stars are erosive of a planet.s atmosphere comma  particularly for hydrogen comma  but also for oxygen and nitrogen comma  both chemically important elements.
DOI: 10.57780/esa-j2kubbn
title: 085458

description: We propose radio continuum observations of four Galactic SNRs comma  G28.6-0.1 comma  G32.4+0.1 comma  G347.3-0.5 comma  and G353.6-0.7 comma  with X-ray spectra dominated by synchrotron emission. Multi-wavelength studies of these sources are essential for improving our understanding on how SNRs accelerate cosmic-ray particles. These SNRs are all intrinsically radio faint and require sensitive observations to correlate radio features that produce X-ray emission. The  radio observations will allow robust determinations of the integrated flux densities at each frequency comma  along with their radio spectral indices. The L band polarization measurements will determine the direction and strength of their magnetic fields. We  request a 50 ksec XMM-Newton observation of G32.4+0.1 comma  essential for modeling  its broadband emission.
DOI: 10.57780/esa-j2y69g1
title: 086136

description: An obscuring wind featuring heavy absorption of the soft X-ray continuum associated with blue-shifted UV broad absorption lines was previously discovered in NGC 5548. The obscurer has been present in our line-of-sight openParLOSclosePar since at least 2011. Outside our LOS comma  if photons from the central engine to the narrow-line region are also screened comma  X-ray narrow emission lines would be diminished comma  given adequate delay time. We propose to observe NGC 5548 with XMM- Newton for 70 ks comma  we can verify whether the narrow emission lines in the soft X-ray band are diminished. This helps us to better understand the geometry of the obscurer. With coordinated HST-COS comma  we can study the FUV and NUV absorption lines associated with the obscurer along the LOS.
DOI: 10.57780/esa-j49xd4r
title: 089340

description: Both instruments aboard SRG comma  i.e. eROSITA and ART-XC comma  would like to perform a timing cross-calibration on SMC X-1 openParP=0.7sclosePar after the next SRG orbit correction. For this they need an X-ray reference point and XMM-Newton is the only-best provide this.
DOI: 10.57780/esa-j7m84mh
title: 086241

description: We propose the continuation of a very successful fulfill program openParaccepted in AO17 and AO18closePar aimed at studying the flaring phenomenology of the supergiant fast X-ray transients openParSFXTsclosePar. Our milestone analysis of all available XMM SFXT observations proved that the XMM data are the best suited to probe the physics of clumpy wind accretion. The current number of observed flares is still limited and more observations are needed to achieve a meaningful statistical sample for each source. 2-5 flares are observed every 20 ks exposure comma  and thus short XMM fulfill observations provide the best mean to build upon the current database comma  providing also the required large effective area and good energy resolution to measure of NH and spectral slopes variations within time scales of virgul100 s.
DOI: 10.57780/esa-j9gffce
title: 088287

description: Photoevaporative mass loss is key to sculpting the properties of short period transiting exoplanets comma  yet current models have large uncertainties. One of the biggest sources of uncertainty is the high-energy openParX-ray and extreme UVclosePar spectrum of the star. Stellar EUV cannot be measured due to interstellar absorption comma  and must be inferred from the X-ray luminosity. We propose a survey to measure the X-ray spectra of four young comma  active stars hosting small openPar< 3.5 R_EarthclosePar planets. This regime is the most critical for understanding exoplanet demographics comma  and our targets are the most observationally favorable for detecting exospheric absorption. The spectra measured by XMM-Newton will be crucial in understanding photoevaporation from these exceptional planets.
DOI: 10.57780/esa-j9qppqm
title: 084468

description: The Dark Energy Survey openParDESclosePar is currently the pre-eminent optical-near-IR survey for cosmology. DES uses four probes to study the physical nature of dark energy comma  including clusters of galaxies. To unlock the full potential of DES clusters comma  we require precise information of the galaxy-richness to halo-mass scaling relation comma  i.e. its slope comma  normalisation comma  and scatter. Of these comma  the least well known is the scatter. Therefore comma  one of the highest priorities for DES is to improve measurements of the scatter openParand its evolutionclosePar. For this comma  X-ray observations of a statistically complete sample are essential openPararchival comma  including serendipitous comma  observations are insufficientclosePar. We propose XMM observations openPartotaling 283ksclosePar of 14 DES clusters comma  to complete a sample of 40 of the richest clusters in DES
DOI: 10.57780/esa-jad4zk1
title: 084434

description: AGN can be obscured by gas streams close to the black hole that shield remote regions from ionising radiation. We witnessed such an event in NGC 5548 and NGC 3783 where 90% of the soft X-rays are blocked by a dense gas stream close to the BLR. Our joint observations with XMM-Newton comma  NuSTAR and HST-COS showed UV broad absorption lines associated with the X-ray absorption and allowed us to characterise this unique obscuration event completely. We propose to investigate a similar event in another Seyfert 1 using the same instruments. Swift monitoring openPar98 ksclosePar will be used to find the event comma  which will be characterised by joint ToO observations with XMM-Newton openPar150 ksclosePar comma  HST-COS openPar4 orbitsclosePar and NuSTAR openPar50 ksclosePar.
DOI: 10.5281/zenodo.7805036
title: Il torrente Enza nelle carte della Congregazione dei Cavamenti, serie Memoriali dell'Archivio di Stato di Parma

description: Schedatura e metadatazione dei contenuti delle carte inerenti il corso del torrente Enza nel fondo archivistico <em>Congregazione dei Cavamenti, </em>serie<em> Memoriali </em> dell'Archivio di Stato di Parma
DOI: 10.57780/esa-jlqlugy
title: 086455

description: One of the biggest mysteries in modern astrophysics is the mechanism driving the launching of jets from compact objects. Observing how jets which accompany super-Eddington accretion couple to the inflow comma  will test the physics of the launching and yield a major step forwards in our understanding. We have recently shown that the radio core of the ULX comma  Ho II X-1 varies on timescales of mins-days comma  allowing us to probe this coupling for the first time. XMM-Newton and VLA together are the only instruments capable of delivering this ground-breaking science and for which we are proposing a series of 10 simultaneous observations. To place the physics of the coupling into context comma  we are also requesting a series of Swift snapshots which we will match with AMI observations at 16 GHz.
DOI: 10.57780/esa-jmnw1k3
title: 086373

description: The nearby Hyades cluster harbors four giants comma  which have almost identical optical appearances. However comma  the activity of these very similar stars differs comma  with two stars being active comma  while the stars HD28305 and HD27697 are inactivedoublePoint The X-ray luminosities of these stars differ by more than a facor of 100! An evolutionary study shows the former two at the beginning of their helium burning phase comma  while the latter two have already developed a carbon-oxygen core. Detailed X-ray spectroscopy is available for the two bright giants comma  yet none for the two fainter giants comma  for which we propose deep XMM-Newton EPIC spectroscopy. We want to perform a detailed analysis of the X-ray spectra comma  search for spectral differences and relate them to the different states of activity and stellar evolution.
DOI: 10.57780/esa-jqn3k9h
title: 086405

description: We propose to complete the last 10% of high-quality observations for the eeHIFLUGCS galaxy cluster sample openPar36 of 376 clustersclosePar. The sample is based on ROSAT with completely and homogeneously redetermined fluxes as well as updated redshifts. For the already observed clusters we have also identified >10 double-triple clusters and clusters dominated by AGN emission comma  which then fall below the flux limit of 5e- 12 erg-s-cm2. With the completed follow-up observations we will decrease the uncertainties in OmegaM by a factor of 2.8 compared to those obtained with the HIFLUGCS sample. If these 10% do not get observed comma  the flux-limited sample drops by almost a factor of 3 to a disappointing 137 clusters. The observations will also have long lasting legacy value for a range of astrophysical studies
DOI: 10.5281/zenodo.7805035
title: Il torrente Enza nelle carte della Congregazione dei Cavamenti, serie Memoriali dell'Archivio di Stato di Parma

description: Schedatura e metadatazione dei contenuti delle carte inerenti il corso del torrente Enza nel fondo archivistico <em>Congregazione dei Cavamenti, </em>serie<em> Memoriali </em> dell'Archivio di Stato di Parma
DOI: 10.57780/esa-jyp6djf
title: 086218

description: We propose short XMM observations of sources detected in the deepest Swift-BAT 105-month stacked all- sky maps comma  but for which a Swift XRT observation has no obvious X-ray counterpart. Our past studies of these faint BAT sources found some of the brightest examples of reflection-dominated AGN in the sky with accretion rates several times higher than typical AGN that contribute significantly to black hole growth in the nearby universe. This study will have enduring legacy value by completing the counterpart association for the full 105-month all-sky catalog outside of the Galactic plane openPar|b|>10closePar. XMM is critical to identify these sources because of the factor of 13X higher sensitivity than Swift XRT combined with a very large FOV openPar28.4.closePar to resolve any contributing sources.
DOI: 10.57780/esa-k12ljnm
title: 087100

description: The proposed observation of seven obscured AGN are necessary to obtain a complete and uniform coverage of the X-ray emission for the sample of Seyfert-2 galaxies from the 12micron galaxy sample openPar12MGSclosePar. Coupled with the broad-band X-ray observations available for the remaining 12MGS AGN comma  the proposed observations will allow us to investigate the column density distribution at low redshift for a complete and unbiased AGN sample openParbecause of its mid-IR selectionclosePar and to connect the accretion properties to those of the hosts by exploiting the unique multi-band characterization and coverage of the proposed sample.
DOI: 10.57780/esa-k3rjhlf
title: 086462

description: Combining the exquisite angular resolution of Gaia openPar< 0.2 arcsecclosePar with optical light curves and WISE photometry comma  the Gaia Gravitational Lenses working group openParGraLclosePar have confirmed 22 new strongly lensed quasars in the past two years comma  including 9 new quadruply lensed quasars. X-ray observations of these rare systems provide a powerful tool for a range of studies comma  from inferring the structure near the event horizons of supermassive black holes openParSMBHsclosePar to measuring black hole spins at cosmological distances. We propose a snapshot survey of these newly identified systems to determine which are the most X-ray bright and therefore amenable to future deeper observations and monitoring programs.
DOI: 10.57780/esa-k4hsalu
title: 088524

description: Lyman continuum escape openParLyCclosePar from galaxies comma  responsible for the reionization of the Universe in the first billion years comma  has been a hot topic and puzzle both for theory and observations for over two decades. However comma  a population of z=0.3 starburst openParGreen PeaclosePar galaxies was found to leak LyC comma  and our recent XMM-Newton observations of three Green Pea galaxies revealed a significant X-ray excess in two out of the three sources. We propose a 110ks XMM-Newton observation of one Green Pea galaxy with already Hubble Space Telescope-confirmed LyC leakage. This will allow us for the first time to explore the link between X-ray emission and LyC escape.
DOI: 10.57780/esa-k4w5fcj
title: 086273

description: Our previous X-ray inverse-Compton and environmental studies of radio galaxies have demonstrated that their composition depends on morphologydoublePoint edge-brightened comma  luminous openParFRIIclosePar radio galaxies are leptonic comma  while centre-brightened comma  low luminosity openParFRIclosePar radio galaxies are baryonic. Radio morphology is therefore crucial for the inference of jet power and feedback from AGN survey populations. But the traditional FR dichotomy is challenged by our recent discovery of a large population of low luminosity edge-brightened openParFRIIclosePar sources in the LOFAR Two-Metre Sky Survey openParLoTSSclosePar. Here we propose to measure lobe inverse-Compton and environmental emission from this new AGN class to determine their particle content and hence enable their environmental impact to be incorporated into feedback models.
DOI: 10.57780/esa-k8k30oz
title: 088606

description: Covering the central 20*2.5deg2 of the Milky Way disc with 20ks XMM exposures will allow us to measure the flows of hot baryons emerging from the energetic activity in the disc comma  to detail their impact on the surroundings and to connect the sources in the disc with the base of the Galactic outflow. By connecting the requested XMM scan with the shallow all sky eROSITA survey comma  we will determine whether the activity in the Galactic disc is important for feeding and sustaining the Galactic corona. This study will provide us with an excellent archetype for advancing our understanding of galaxy evolution theory in a Milky-Way-class galaxy. This project will produce a legacy dataset that will be used in the future for multiple purposes comma  including multi-wavelength and time-domain investigations.
DOI: 10.34740/kaggle/dsv/5475784
title: Health Workforce Shortage Areas
DOI: 10.57780/esa-kic3ddg
title: 086295

description: A powerful new approach to study early galaxy formation is through massive relic galaxies openParMRGsclosePar which are local analogs of the high-redshift red nuggets thought to represent progenitors of today.s early-type galaxies. X-ray observation of the hot diffuse gas of MRGs is the most viable means to measure the global properties like the halo concentration comma  mass comma  and baryon fraction comma  but only two MRGs have been identified that are suitable for such an X-ray analysis. To remedy this comma  we constructed a sample of MRGs to map in detail their X-ray emission. We propose a snapshot survey of the 8 MRGs in the sample which lack any X-ray data. Deep follow-up exposures with XMM-Newton and Chandra of promising targets will then be sought for detailed analysis of their mass distributions.
DOI: 10.57780/esa-kjpxumf
title: 088211

description: Simultaneous observations with XMM-Newton and Juno over the last 3 years have revolutionised our understanding of the coupling between Jupiter.s magnetosphere and ionosphere leading to new theories of how planets can produce X-rays. For example comma  evidence is building from joint XMM-Newton and Juno observations that ion cyclotron waves are one of the drivers for the gas giant.s X-ray aurorae. However comma  we only have one more opportunity to utilise the unique capabilities of XMM-Newton and Juno before the jovian explorer is due to finish its mission in July 2021. Juno is now in the dusk sector of Jupiter.s magnetosphere - a region that no other spacecraft will visit again for at least another decade.
DOI: 10.57780/esa-kmsk4nr
title: 086538

description: PSR B0950+08 is a 17 Myr old bright radio pulsar at d=260 pc. X-ray observations of this pulsar provide a rare opportunity to test models of polar cap heating by precipitating magnetospheric particles comma  while the UV-optical observations can test models of internal heating in neutron stars comma  which are determined by fundamental properties of matter. The only previous XMM-Newton observation was not deep enough to reliably separate the polar cap and magnetospheric components comma  while optical observations with ground-based telescopes lacked the needed angular resolution. The proposed deep XMM-Newton observations comma  supplemented by an HST observation comma  will be the most detailed multiwavelength study of an old radio pulsar to date.