cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-bukiida
title: 088196

description: We propose to observe 6 SZ-selected galaxy clusters to complete the follow-up of a large representative sample of 45 objects at 0.5 < z < 0.9. All are targets of an ongoing 300h Guaranteed Time Programme of high-resolution openPar< 18 closePar SZ observations with NIKA2. The sample comma  extracted from the Planck and ACT surveys comma  covers an unprecedented mass range at these redshifts. Combining measurements of gas density from XMM-Newton imaging and pressure from NIKA2 SZ maps comma  we will study individual radial thermodynamic and mass profiles comma  their dispersion comma  and the relations between YSZ comma  YX and mass for the first time in this mass and redshift range.
DOI: 10.57780/esa-buni0hl
title: 086314

description: Massive stars disperse the ISM by a combination of their powerful stellar winds comma  supernova openParSNclosePar explosions and their UV fluxes. At large scales openPar>1 kpcclosePar the UV radiation plays a critical role in the evolution of galaxies comma  but at smaller scales openPar<100 pcclosePar stellar feedback influence their stellar nurseries. Observational studies have been presented in the recent years arguing that the radiation pressure is significantly more important that the pressure resulted from the hot bubble interiors comma  but we note that such studies draw conclusions by interpreting low spatial resolution ROSAT X-ray observations. We started a revisitation of the X-ray properties of superbubbles in the LMC taking advantage of a superior effective area and rejection of contaminant point sources using XMM.
DOI: 10.57780/esa-bw1m2sj
title: 086030

description: New facilities like TESS will soon boost the number of known terrestrial planets around M stars. Stellar X-rays can severely affect planetary atmospheres comma  but more than 40% of the M dwarfs within only 10pc lack appropriate data. We comma  thus comma  propose to continue our X-ray and UV XMM-Newton survey of all 37 still X-ray undetected M0-M4 dwarfs within 10pc. This 925ks Fulfil Project will provide the ultimate constraint on M dwarf X-ray luminosity function comma  plasma temperature comma  short time-scale variability and UV spectral energy distribution comma  vital input to models of planetary atmospheres comma  dynamos and spin evolution comma  as a legacy for future stellar-exoplanetary modeling work.
DOI: 10.57780/esa-byiw0qu
title: 087082

description: 2MASS 0918+2117 is a type 1.5 QSO at z=0.149. It was found to be unobscured in 2000 by Chandra comma  obscured by Compton Thick material in 2003 by XMM and unobscured again by XMM in 2005 comma  when there is evidence openParat 3sigmaclosePar of an absorption feature at 7 keV comma  indicating a disk wind with velocity of vout=0.13c comma  with poorly constrained physical parameters. A faster wind openParvout=0.3-0.4cclosePar may be present at 10 keV comma  at the limit of the XMM response. These evidences suggest that the source was caught in an obscuration and following blow-out phase comma  in which powerful AGN-driven winds sweep away the obscuring material around the SMBH. We propose to observe the source for 60ks with Nustar openParplus 50ks XMMclosePar to fully characterize the wind at all energies comma  or study the absorber if the obscuration is recurrent.
DOI: 10.57780/esa-c1hacl7
title: 086484

description: In a search for new TDEs candidates we cross-matched optical and x-rays catalogues. We propose the observation of 5 of our best candidatesdoublePoint these galaxies show a high x-rays luminosity openParL_X>10elev41 erg-secclosePar and an extremely soft spectrum openParGamma>3closePar in the same energy band. As no other known source should be able to show a similar behaviour we are positive that these are unrecognized TDEs. If these galaxies indeed hosted a TDE we expect that by now their luminosity should have dropped by a significant factor openPar>5closePar allowing us to confirm their nature.
DOI: 10.57780/esa-c6f071f
title: 086126

description: Luminous X-ray emission is an ubiquitous property of quasars. Small populations of type 1 quasars have displayed weak X-ray emission comma  generally due to absorption or variability effects. We have discovered several X-ray weak SDSS quasars that do not fit easily into any of the known categories. We propose to obtain 30-50 ks XMM-Newton observations for three of these exceptional X-ray weak quasars. We will determine reliably whether there is X-ray variability or X-ray absorption comma  and then classify the possible causes for their observed X-ray weakness. Understanding this new type of X-ray weak quasar might provide new insights into the X-ray corona and its environment. It will also allow us to constrain the missed fraction of SMBH growth in extragalactic X-ray surveys.
DOI: 10.57780/esa-c8vbjqo
title: 086434

description: We propose X-ray observations of nearby F-G-K young openPar20-40 MyrclosePar stars hosting transiting exoplanets comma  recently discovered by TESS and Kepler openParK2closePar comma  and included in follow-up campaigns with HARPSarrobaESO 3.6m and HARPS-NarrobaTNG. DS Tuc and HD 33512 host super-Earth-Neptune mass planets with inflated atmospheres comma  due to strong irradiation from their host stars. V1298 Tau harbors a warm Jupiter still in contraction toward its final size. Our immediate objective is to assess X-ray spectral and time variability of the host stars comma  so to characterize their activity level and the dose of high-energy radiation received by very young planets. Final goals are the determination of evolutionary paths of exoplanets in the mass-radius diagram comma  and constraints for modeling planetary atmospheres.
DOI: 10.57780/esa-cfonbu7
title: 088339

description: Last few years comma  we have presented various results of high-resolution spectroscopies of SNRs with the RGS. Although a large amount of the archival data over the past twenty years is available and most of the notable SNRs have been observed with the RGS comma  several intriguing remnants are still not observed. A recent comprehensive systematic analysis of SNRs revealed that a clear correlation between their morphologies and supernova types. We comma  however comma  found two outliers in the correlation diagramdoublePoint 0548-70.4 and 0104-72.3 comma  which are minor LMC-SMC SNRs but have anomalous abundance pattern and peculiar morphologies. We thus propose to observe these SNRs with the RGS to give a conclusive result on their origin and nature.
DOI: 10.5281/zenodo.7805079
title: Il torrente Enza nelle carte della Raccolta di Mappe e Disegni dell'Archivio di Stato di Parma

description: Schedatura e metadatazione dei contenuti delle carte inerenti il corso del torrente Enza nel <em>Raccolta di Mappe e Disegni </em> dell'Archivio di Stato di Parma
DOI: 10.57780/esa-citsu3t
title: 086521

description: In our WISE-SDSS-selected sample of hyperluminous openParLbol > 10elev47 erg-sclosePar quasars openParWISSHclosePar we are finding a sizable fraction of sources with strongly blueshifted CIV emission lines openParv_civ < -2000 km-sclosePar and up to 1.5 dex lower X-ray luminosity openParL_XclosePar compared to that reported for normal quasars. Based on a sub-sample of 13 sources comma  we find that L_X and v_civ significantly correlate. No relation is found at other bands. Furthermore comma  at low L_X comma  our constraints on Gamma and N_H are insufficient to verify a dependence on v_CIV. We propose for XMM observations to perform a complete X-ray coverage for the remaining 9 WISSH QSOs with measured v_civ. These will allow a refined investigation enabling us to discriminate between competing models for the origin of these sources.
DOI: 10.57780/esa-cizvhvg
title: 088122

description: We propose joint XMM-Newton openPar30ksclosePar and HST observations openPar3 orbitsclosePar of the nearby K young star V1298 Tau openParvirgul20MyrclosePar hosting four transiting exoplanets discovered with Kepler openParK2closePar comma  and included in a follow-up optical-IR campaign with HARPS-N and GIANO-BarrobaTNG. These young planets have radii between 5.6 and 10.3 R_Earth and they are located between 0.08 and virgul0.3 AU from the host. They are still experiencing the contraction phase toward their final sizes and are subject to photoevaporation effects at different rates. Our immediate objective is to reconstruct the full XUV spectrum comma  and to assess the spectral and time variability of the host star. In this way we will characterize its activity level and the dose of high- energy radiation received by those very young planets.
DOI: 10.5281/zenodo.7805078
title: Il torrente Enza nelle carte della Raccolta di Mappe e Disegni dell'Archivio di Stato di Parma

description: Schedatura e metadatazione dei contenuti delle carte inerenti il corso del torrente Enza nel <em>Raccolta di Mappe e Disegni </em> dell'Archivio di Stato di Parma
DOI: 10.57780/esa-cugk8nz
title: 087279

description: We have recently detected a glitch in the spin of 1E 1207.4-5209 comma  the compact central object openParCCOclosePar in SNR PKS1209-51-52 comma  and possibly from a second CCO that we are monitoring comma  PSR J0821-4300 in SNR Puppis A. This is entirely unexpected for pulsars with a spin-down rates as small as those found for CCOs. These detections supports a recent conjecture that glitches could be triggered by the diffusion of a buried magnetar strength internal field comma  10 comma 000 larger than the dipole fields inferred for CCOs. Here comma  we propose to search for similar timing anomalies from the third known CCO pulsar comma  PSR J1852+0040 in SNR Kes 79. A detection will reveal a general property of CCOs with important theoretical implications for NS B-field structure and emission mechanisms comma  andevolution.
DOI: 10.57780/esa-d2kgv1r
title: 082432

description: We now know that some of the most luminous members of the ultraluminous X-ray source openParULXclosePar population are actually powered by highly super-Eddington pulsars comma  making them the most extreme accretors known. Three such systems are now knowndoublePoint M82 X-2 comma  NGC 7793 P13 comma  and NGC 5907 ULX. These sources all exhibit unusual .off.-states in which their X-ray flux drops by virgul2 orders of magnitude openParor moreclosePar. These off-states are fairly rare comma  but recent monitoring with Swift shows that NGC 5907 ULX is now entering one. Here we propose an ambitious series of six 60 ks observations of NGC 5907 ULX openPar360 ks in totalclosePar designed to determine the nature of these events. This is of critical importance comma  as these off-states may offer a means to determine the magnetic fields of these systems.
DOI: 10.57780/esa-d2tvbp5
title: 087259

description: We propose joint observations with Chandra and XMM-Newton of the super Chandrasekhar mass white dwarf merger product Cas J005311. A first pilot  XMM-Newton observation revealed an astonishingly high X-ray luminosity of Cas J005311 and its remarkable nebula which is strongly enriched in  Neand Mg. The proposed ACIS-I observations will map the nebula and probe chemical gradients across it comma  as necessary to unravel the evolutionary history of the merger. We will search for X-ray pulsations to test magnetic fields and rotation of Cas J005311. Jointly comma  Chandra and XMM-Newton will  reveal the physical mechanisms powering the X-rays from the central star  and the nebula.
DOI: 10.57780/esa-d48edbd
title: 087085

description: The X-ray spectral analysis of Compton thick  comma  having intrinsic obscuration NH>1E24 cmelev-2closePar AGN is key to understand the physics of the obscuring material surrounding accreting supermassive black holes. We propose to target with a combined  NuSTAR-XMM-Newton observation two candidate CT-AGN selected from the BAT 100-month survey. Thanks to the excellent count statistics comma  we will be able to constrain several spectral parameters openPare.g. comma  relative importance of the scattered component versus the direct one comma  geometry of the obscuring torus comma  equivalent width of the Iron emission lineclosePar. This analysis will refine our knowledge of the selection function of CT-AGN comma  therefore helping us in determine the true intrinsic fraction of CT-AGN in the local Universe.
DOI: 10.57780/esa-d6835bx
title: 086160

description: The discovery of ultra-luminous X-ray pulsars openParULXPsclosePar comma  i.e. comma  neutron stars accreting orders of magnitude above their Eddington limit comma  raised the question how these systems can become so bright. NGC 7793 P13 is one of the best systems to study to find an answer to this question comma  because of its high flux comma  strong pulsations and known optical counterpart. These properties allowed us to determine the full orbital ephemeris using XMM-Newton. P13 also shows a super-orbital period in the X-rays comma  the origin of which is currently unknown and cannot be constrained with the existing data. Therefore we propose to continue our successful monitoring campaign of the spectrum and pulse period of P13 throughout AO 19.
DOI: 10.57780/esa-d6r9r3a
title: 085238

description: We propose to observe the local openParz=0.00842closePar Seyfert 2 galaxy NGC 4388 simultaneously with NuSTAR and XMM-Newton for 50 ks and 60 ks comma  respectively comma  in order to obtain conclusive evidence on the physical nature of the circumnuclear matter in this source. NGC 4388 has been already observed by many X-ray observatories highlighting several peculiar properties. In particular comma  in 2005 Suzaku observed a prominent Fe KIquestionMark line openParEWaquestionMarkquestionMark200 eVclosePar and a significant contribution of the reflection component openParR = 1.40+0.29-0.36closePar comma  while in 2013 NuSTAR revealed a very weak Compton hump openParR<0.09closePar and a very large iron KIquestionMark line EW openPar368+56 eV with respect to the intrinsic continuumclosePar for a source with weak or no reflection.
DOI: 10.57780/esa-d91xy5i
title: 088256

description: It is a debated topic whether the very massive stars end their lives with supernova explosions or not. Finding a supernova remnant openParSNRclosePar hosting a black hole can provide direct evidence for the former scenario. SS 433 comma  in the giant bubble W50 comma  is a paradigmatic micro-quasar containing a virgul16Msun black hole. Its SNR has not been firmly established comma  as its energetic jets are considered as the major source to produce W50. The ROSAT image shows thermal structures in the north of W50 comma  which are far from the jet precession cone. We propose 72 ks XMM- Newton observation toward the northern shell of W50 comma  aiming to find signatures of a SNR and to study the explosion mechanism of SS433 s supernova. A non- detection would provide evidence that multiple episodes of jets in the past.
DOI: 10.57780/esa-dcxcchs
title: 085319

description: We propose an 80 ks high-spatial resolution Chandra-HRC-I observation of the MWC 560 symbiotic interacting binary system comma  as a follow-up to the 2016 Chandra discovery of an extended jet-outflow. When combined with the joint HST imaging and XMM spectra comma  we will obtain a comprehensive picture of the central source and the dynamic jet-outflow from as close as few hundred AU from its source comma  to the region of its interaction with the circumbinary environment into which the jet propagates. We will determine its evolution and origin comma  including association with powerful past outbursts in the system.
DOI: 10.57780/esa-dhhj7fh
title: 086014

description: We request an observation of a newly discovered X-ray transient and black hole candidate. The source is now entering quiescence comma  following a months. long outburst. X-ray imaging and spectroscopy with Chandra suggest interactions with ambient media on small angular scales comma  and MeerKAT observations at 1.28 GHz reveal a radio bubble or possible supernova remnant on large angular scales. The detection of a black hole in a remnant would upend some prevalent ideas regarding black hole birth events. The sensitivity and broad field of view and of XMM-Newton offer the best chance to detect a putative remnant in X-rays. We request a 10 ks openPartotalclosePar observation to image the field around the source.
DOI: 10.57780/esa-divvrrl
title: 086247

description: We propose 12 XMM observations of 40ks each to survey the CMZ and capture the echoes of SgrA*.s past flares as they propagate in this region. Since XMM last observed the central 200pc comma  these events have been scanning the molecular distribution along the line of sight. The deep survey we propose will therefore probe the time variability of all known reflection features. Using the description of SgrA*.s past flares comma  in terms of age and duration comma  we will then pair each feature with its illuminating event and therefore give a line-of-sight position for all illuminated clouds. Combined with existing kinematics information comma  the new XMM survey will fully constrain the dynamical description of the CMZ comma  providing the first unambiguous 3D model of the region.
DOI: 10.57780/esa-dsyqbru
title: 083181

description: Our analysis indicates a recent openPar2016-2018closePar enhancement of the GeV emission from the SN 1987A region seen with Fermi-LAT. The observed signal is characterized by a hard spectrum with a slope of 1.7+--0.2 and detected only at energies 1 GeV. Fermi-LAT data constrain the position of the signal within 0.15deg around SN 1987A which allows several other possibilities for the multiwavelength counterpart comma  including SN 1987A comma  30 Dor C comma  the Honeycomb nebula comma  RX J0536.9-6913 and a new possible transient source. We ask for joint H.E.S.S.-XMM-Newton openPar50 h-30 ksecclosePar multiwavelength observations of the region in order to clarify the nature of the observed signal.
DOI: 10.57780/esa-dtk32gz
title: 090304

description: We propose an XMM program to complement a 100 pc resolution HST UV program that recently observed 75 of the brightest hard X-ray selected comma  nearby type 1 BAT AGN openParz<0.1closePar comma  to accurately calibrate the AGN bolometric emission comma  precisely measure the Eddington ratio distribution of AGN comma  and understand the intrinsic UV-X-ray scatter to estimate cosmological parameters. We propose to observe 16 AGN observed with HST in the past few months with extended nuclear star formation comma  that have never been observed with XMM.  XMM is uniquely sensitive at <1 keV openPar30-50XclosePar which is critical for accretion disk models.  The HST UV capability is diminishing substantially so it is critical to leverage this once in possibly decade opportunity for high spatial resolution UV imaging.
DOI: 10.57780/esa-dvlmek3
title: 088259

description: The Zwicky Transient Facility openParZTFclosePar is on track to transform the field of tidal disruption events openParTDEsclosePar. In the first 2.5 yr of ZTF survey operations openParZTF-IclosePar comma  we have detected 25 TDEs. However comma  despite this exciting progress in assembling a large sample of TDEs comma  the nature of the optical emission remains a mystery comma  and appears to be distinct from the soft X-ray component openParkTvirgul50 eVclosePar associated with the accretion of the stellar debris through a newly formed disk. In fact comma  with our X-ray follow-up observations we have revealed that the soft X-rays show dramatic variability that is totally decoupled from the smoothly evolving optical emission. Here propose for a program in AO-20 in order to create a legacy sample for X-ray population studies of TDEs for the first time.
DOI: 10.57780/esa-dw8g5yq
title: 086299

description: CCO pulsars are stable rotators with weak dipole B-fields and small spin-down rates. We have been timing two CCO pulsars for 20 years. In 2016 there was a glitch in 1E 1207.4-5209 comma  which is unprecedented for a pulsar with such a small spin-down rate comma  and has profound implications for the B-field evolution of CCOs and the mechanismopenParsclosePar that trigger glitches. We must continue to time this event to distinguish between a very slow glitch recovery and a permanent comma  large increase in its spin-down rate. We see similar features in recent timing of PSR J0821-4300 in Puppis A comma  and did initiate in October 2019 a new phase-connected timing solution to ensure a precise cycle count that will resolve the nature of its timing anomaly. This proposal is also to continue monitoring PSR J0821-4300.
DOI: 10.57780/esa-dydoto9
title: 088603

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: 10.57780/esa-e7828ns
title: 089061

description: A new ULX in the galaxy NGC 4045 that reaches X-ray luminosities greater than 10elev41 erg selev-1 was recently found comma  making it one of the most powerful ULXs discovered to date. DDT observations with NuSTAR revealed enticing candidate signals of an absorption line at 8.7 keV which could be the signature of an ultrafast outflow comma  the hallmark of super-Eddington accretion comma  and a potential pulsation signal comma  that could confirm the source as an neutron star accretor. However comma  neither of these were found to be significant in the 50-ks observation. Here we propose follow-up target of opportunity observations with NuSTAR and XMM-Newton in order to confirm these signals.
DOI: 10.57780/esa-ec5y3rh
title: 088226

description: We request a 50-ks XMM-Newton observation of an X-ray-luminous tidal disruption event during Cycle 20 in order to track its long-term X-ray flux behaviour comma  and to clarify lingering questions regarding its early flux evolution. The event comma  which occurred in the galaxy SDSS J143359.16+400636.0 at z=0.099 comma  first detected in February 2020 comma  reached a peak luminosity of 10elev44 erg s 1 in the 0.3-10 keV X-ray band comma  which was around 20 times more than the peak optical-UV luminosity. Optical comma  UV comma  and X-ray lightcurves showed a decline in flux from the source consistent with telev 5-3. The start time of the X-ray emission is unclear comma  which has implications for the X-ray emission mechanism comma  but an observation at long time scales with XMM with clarify this.
DOI: 10.57780/esa-ei31e98
title: 087094

description: The galaxy M82 harbors two notable ultraluminous X-ray sources openParULXclosePardoublePoint M82 X-2 comma  the archetipal pulsating ultraluminous X-ray source openParPULXclosePar comma  and M82  X-1 comma  a IMBH candidate.  The extreme luminosity of ULXs comma  and the observation of strong winds from these sources comma  suggests that these sources are undergoing strongly super-Eddington accretion.  The supply of matter that powers these accreting systems is likely to come from Roche Lobe overflow from a more massive companion star comma  and should produce changes of orbital period observable in time scales of virgulyears.  This program aims at detecting this orbital period derivative through pulsar timing in M82 X-2 comma  and study in detail the quasi-periodic oscillations from both ULXs.