A dataset provided by the European Space Agency

Name: ToO observation of a non-INTEGRAL-detected Anomalous X-ray Pulsar
Published: 2025-03-25T09:54:35Z

Proposal ID	0620062
Obs ID	06200620004
Title	ToO observation of a non-INTEGRAL-detected Anomalous X-ray Pulsar
Download Data Associated to the proposal	https://isla.esac.esa.int/tap/download/bundle?format=ascii_curl&product_id=prop_id:0620062
DOI	https://doi.org/10.57780/esa-l3cz1xd
Author	Den Hartog
Abstract	The discovery of persistent hard X-ray emission from anomalous X-ray pulsars (AXPs) is one of the most remarkable discoveries by INTEGRAL to date! The spectral-shape transition of these AXPs around ~10 keV is drastic and not understood: from soft to extremely hard. These AXPs are detected up to at least 150 keV and their non-thermal emissions contain the bulk of the total energy emitted.These remarkable AXP spectra have led to several theoretical attempts to explain the non-thermal hard X-ray emission, using e.g. magnetar corona and/or exotic QED processes in the most extreme magnetic fields. The current measurements are inssufficient to distinguish between several physically very different models. Using all available INTEGRAL archival data on these sources we collected good statistics on their time-averaged (years)n spectra and pulse profiles. However, we know from the soft X-ray, NIR and even radio bands that AXPs show dramatic variability behaviour in a wide variety of forms. What causes these dramatic events and how variations in one energy range relate to another is still a major puzzle in AXP astrophysics, and is clearly intimately connected to determining the origin of AXP emission across the spectrum.We propose an INTEGRAL ToO program to follow up any (known or new) AXP not detected by INTEGRAL which shows significant increase in the persistent flux in soft X-rays (2-10 keV) till above 2E-11 erg cm-2 s-1. This can be easily measured with RXTE with which the AXPs are regularly monitored.We ask for 800 ks to determine accurately changes in parameters. To optimize the available INTEGRAL time, we ask for the first 400 ks observation, followed by near-real-time analysis searching for evidence fo the expected changes. After justification to the Proj. Scientist, we request the remaining 400 ks.
Publications	511 keV excess and primordial black holes - Keith, Celeste, Hooper, Dan (2021-09-01) http://ui.adsabs.harvard.edu/#abs/2021PhRvD.104f3033K A comprehensive analysis of the hard X-ray spectra of bright Seyfert galaxies - Lubinski, P., Beckmann, V.,Gibaud, L.,Paltani, S.,Papadakis, I. E.,Ricci, C.,Soldi, S.,Turler, M.,Walter, R.,Zdziarski, A. A. (2016-05-01) http://ui.adsabs.harvard.edu/#abs/2016MNRAS.458.2454L Active galaxy 4U 1344-60: did the relativistic line disappear? - Svoboda, J., Bianchi, S.,Guainazzi, M.,Matt, G.,Piconcelli, E.,Karas, V.,Dovciak, M. (2012-09-01) http://ui.adsabs.harvard.edu/#abs/2012A&A...545A.148S Apsidal motion and absolute parameters of GV Nor and V881 Sco based on mid-resolution spectroscopy and TESS photometry - Surgit, Derya, Zasche, Petr,Hadrava, Petr,Erdem, Ahmet,Engelbrecht, Chris A.,Marang, Fred,Masek, Martin,Stevens, Daniel J. (2023-03-01) http://ui.adsabs.harvard.edu/#abs/2023MNRAS.519.4699S Background modelling for I3-ray spectroscopy with INTEGRAL/SPI - Siegert, Thomas, Diehl, Roland,Weinberger, Christoph,Pleintinger, Moritz M. M.,Greiner, Jochen,Zhang, Xiaoling (2019-06-01) http://ui.adsabs.harvard.edu/#abs/2019A&A...626A..73S Broad-band study of hard X-ray-selected absorbed active galactic nuclei - de Rosa, A., Panessa, F.,Bassani, L.,Bazzano, A.,Bird, A.,Landi, R.,Malizia, A.,Molina, M.,Ubertini, P. (2012-03-01) http://ui.adsabs.harvard.edu/#abs/2012MNRAS.420.2087D Catalog of short gamma-ray transients detected in the SPI/INTEGRAL experiment - Minaev, P. Yu., Pozanenko, A. S.,Molkov, S. V.,Grebenev, S. A. (2014-05-01) http://ui.adsabs.harvard.edu/#abs/2014AstL...40..235M Characterization of new hard X-ray cataclysmic variables - Bernardini, F., de Martino, D.,Falanga, M.,Mukai, K.,Matt, G.,Bonnet-Bidaud, J. -M.,Masetti, N.,Mouchet, M. (2012-06-01) http://ui.adsabs.harvard.edu/#abs/2012A&A...542A..22B Comparing simulated ²⁶Al maps to gamma-ray measurements - Pleintinger, Moritz M. M., Siegert, Thomas,Diehl, Roland,Fujimoto, Yusuke,Greiner, Jochen,Krause, Martin G. H.,Krumholz, Mark R. (2019-12-01) http://ui.adsabs.harvard.edu/#abs/2019A&A...632A..73P Constraints on positron annihilation kinematics in the inner Galaxy - Siegert, Thomas, Crocker, Roland M.,Diehl, Roland,Krause, Martin G. H.,Panther, Fiona H.,Pleintinger, Moritz M. M.,Weinberger, Christoph (2019-07-01) http://ui.adsabs.harvard.edu/#abs/2019A&A...627A.126S Cumulative luminosity distributions of supergiant fast X-ray transients in hard X-rays - Paizis, A., Sidoli, L. (2014-04-01) http://ui.adsabs.harvard.edu/#abs/2014MNRAS.439.3439P Diffuse Galactic emission spectrum between 0.5 and 8.0 MeV - Siegert, Thomas, Berteaud, Joanna,Calore, Francesca,Serpico, Pasquale D.,Weinberger, Christoph (2022-04-01) http://ui.adsabs.harvard.edu/#abs/2022A&A...660A.130S Dose Measured On-Board INTEGRAL After More Than 12 Years in Space - Claret, Arnaud, Laurent, Philippe,Sauvageon, Aymeric,Savchenko, Volodymyr (2015-12-01) http://ui.adsabs.harvard.edu/#abs/2015ITNS...62.2784C Energetic feedback and ²⁶Al from massive stars and their supernovae in the Carina region - Voss, R., Martin, P.,Diehl, R.,Vink, J. S.,Hartmann, D. H.,Preibisch, T. (2012-03-01) http://ui.adsabs.harvard.edu/#abs/2012A&A...539A..66V Ephemeris, orbital decay, and masses of ten eclipsing high-mass X-ray binaries - Falanga, M., Bozzo, E.,Lutovinov, A.,Bonnet-Bidaud, J. M.,Fetisova, Y.,Puls, J. (2015-05-01) http://ui.adsabs.harvard.edu/#abs/2015A&A...577A.130F Evidence for an evolving cyclotron line energy in 4U 1538-522 - Hemphill, Paul B., Rothschild, Richard E.,Furst, Felix,Grinberg, Victoria,Klochkov, Dmitry,Kretschmar, Peter,Pottschmidt, Katja,Staubert, Rudiger,Wilms, Jorn (2016-05-01) http://ui.adsabs.harvard.edu/#abs/2016MNRAS.458.2745H Evidence for a resonant cyclotron line in IGR J16493-4348 from the Swift-BAT hard X-ray survey - D Ai, A., Cusumano, G.,La Parola, V.,Segreto, A.,di Salvo, T.,Iaria, R.,Robba, N. R. (2011-08-01) http://ui.adsabs.harvard.edu/#abs/2011A&A...532A..73D Extreme relativistic electron fluxes in the Earths outer radiation belt: Analysis of INTEGRAL IREM data - Meredith, Nigel P., Horne, Richard B.,Sandberg, Ingmar,Papadimitriou, Constantinos,Evans, Hugh D. R. (2017-07-01) http://ui.adsabs.harvard.edu/#abs/2017SpWea..15..917M Galactic survey of ⁴⁴Ti sources with the IBIS telescope onboard INTEGRAL - Tsygankov, Sergey S., Krivonos, Roman A.,Lutovinov, Alexander A.,Revnivtsev, Mikhail G.,Churazov, Eugene M.,Sunyaev, Rashid A.,Grebenev, Sergey A. (2016-06-01) http://ui.adsabs.harvard.edu/#abs/2016MNRAS.458.3411T Gamma-Ray Emission of ⁶⁰Fe and ²⁶Al Radioactivity in Our Galaxy - Wang, W., Siegert, T.,Dai, Z. G.,Diehl, R.,Greiner, J.,Heger, A.,Krause, M.,Lang, M.,Pleintinger, M. M. M.,Zhang, X. L. (2020-02-01) http://ui.adsabs.harvard.edu/#abs/2020ApJ...889..169W Gamma-ray spectroscopy of positron annihilation in the Milky Way - Siegert, Thomas, Diehl, Roland,Khachatryan, Gerasim,Krause, Martin G. H.,Guglielmetti, Fabrizia,Greiner, Jochen,Strong, Andrew W.,Zhang, Xiaoling (2016-02-01) http://ui.adsabs.harvard.edu/#abs/2016A&A...586A..84S Hard X-ray bursts recorded by the IBIS telescope of the INTEGRAL observatory in 2003-2009 - Chelovekov, I. V., Grebenev, S. A. (2011-09-01) http://ui.adsabs.harvard.edu/#abs/2011AstL...37..597C IGR J16328-4726: A New Candidate Supergiant Fast X-ray Transient - Fiocchi, M., Sguera, V.,Bazzano, A.,Bassani, L.,Bird, A. J.,Natalucci, L.,Ubertini, P. (2010-12-01) http://ui.adsabs.harvard.edu/#abs/2010ApJ...725L..68F INTEGRAL 11-year hard X-ray survey above 100 keV - Krivonos, R., Tsygankov, S.,Lutovinov, A.,Revnivtsev, M.,Churazov, E.,Sunyaev, R. (2015-04-01) http://ui.adsabs.harvard.edu/#abs/2015MNRAS.448.3766K INTEGRAL and XMM-Newton observations of IGR J16418-4532: evidence of accretion regime transitions in a supergiant fast X-ray transient - Drave, S. P., Bird, A. J.,Sidoli, L.,Sguera, V.,McBride, V. A.,Hill, A. B.,Bazzano, A.,Goossens, M. E. (2013-07-01) http://ui.adsabs.harvard.edu/#abs/2013MNRAS.433..528D INTEGRAL/IBIS 7-year All-Sky Hard X-Ray Survey. II. Catalog of sources - Krivonos, R., Tsygankov, S.,Revnivtsev, M.,Grebenev, S.,Churazov, E.,Sunyaev, R. (2010-11-01) http://ui.adsabs.harvard.edu/#abs/2010A&A...523A..61K INTEGRAL/IBIS 7-year All-Sky Hard X-ray Survey. I. Image reconstruction - Krivonos, R., Revnivtsev, M.,Tsygankov, S.,Sazonov, S.,Vikhlinin, A.,Pavlinsky, M.,Churazov, E.,Sunyaev, R. (2010-09-01) http://ui.adsabs.harvard.edu/#abs/2010A&A...519A.107K INTEGRAL/IBIS nine-year Galactic hard X-ray survey - Krivonos, R., Tsygankov, S.,Lutovinov, A.,Revnivtsev, M.,Churazov, E.,Sunyaev, R. (2012-09-01) http://ui.adsabs.harvard.edu/#abs/2012A&A...545A..27K INTEGRAL long-term monitoring results on persistently bright NS LMXBs - Savolainen, P., Hannikainen, D. C.,Paizis, A.,Farinelli, R.,Kuulkers, E.,Vilhu, O. (2010-07-01) http://ui.adsabs.harvard.edu/#abs/2010AIPC.1248..199S INTEGRAL results on supergiant fast X-ray transients and accretion mechanism interpretation: ionization effect and formation of transient accretion discs - Ducci, L., Sidoli, L.,Paizis, A. (2010-11-01) http://ui.adsabs.harvard.edu/#abs/2010MNRAS.408.1540D INTEGRAL/SPI {$gamma$}-ray line spectroscopy. Response and background characteristics - Diehl, Roland, Siegert, Thomas,Greiner, Jochen,Krause, Martin,Kretschmer, Karsten,Lang, Michael,Pleintinger, Moritz,Strong, Andrew W.,Weinberger, Christoph,Zhang, Xiaoling (2018-03-01) http://ui.adsabs.harvard.edu/#abs/2018A&A...611A..12D INTEGRAL x-ray constraints on sub-GeV dark matter - Cirelli, Marco, Fornengo, Nicolao,Kavanagh, Bradley J.,Pinetti, Elena (2021-03-01) http://ui.adsabs.harvard.edu/#abs/2021PhRvD.103f3022C Kinematics of massive star ejecta in the Milky Way as traced by ²⁶Al - Kretschmer, Karsten, Diehl, Roland,Krause, Martin,Burkert, Andreas,Fierlinger, Katharina,Gerhard, Ortwin,Greiner, Jochen,Wang, Wei (2013-11-01) http://ui.adsabs.harvard.edu/#abs/2013A&A...559A..99K Leptonic origin of the 100 MeV γ-ray emission from the Galactic centre - Malyshev, D., Chernyakova, M.,Neronov, A.,Walter, R. (2015-10-01) http://ui.adsabs.harvard.edu/#abs/2015A&A...582A..11M Measurements of Cyclotron Features and Pulse Periods in the High-mass X-Ray Binaries 4U 1538-522 and 4U 1907+09 with the International Gamma-Ray Astrophysics Laboratory - Hemphill, Paul B., Rothschild, Richard E.,Caballero, Isabel,Pottschmidt, Katja,Kuhnel, Matthias,Furst, Felix,Wilms, Jorn (2013-11-01) http://ui.adsabs.harvard.edu/#abs/2013ApJ...777...61H Missing hard states and regular outbursts: the puzzling case of the black hole candidate 4U 1630-472 - Capitanio, F., Campana, R.,De Cesare, G.,Ferrigno, C. (2015-07-01) http://ui.adsabs.harvard.edu/#abs/2015MNRAS.450.3840C Multi-instrument X-ray monitoring of the January 2009 outburst from the recurrent magnetar candidate 1E 1547.0-5408 - Bernardini, F., Israel, G. L.,Stella, L.,Turolla, R.,Esposito, P.,Rea, N.,Zane, S.,Tiengo, A.,Campana, S.,Gotz, D.,Mereghetti, S.,Romano, P. (2011-05-01) http://ui.adsabs.harvard.edu/#abs/2011A&A...529A..19B New hard X-ray sources discovered in the ongoing INTEGRAL Galactic plane survey after 14 yr of observations - Krivonos, Roman A., Tsygankov, Sergey S.,Mereminskiy, Ilya A.,Lutovinov, Alexander A.,Sazonov, Sergey Yu.,Sunyaev, Rashid A. (2017-09-01) http://ui.adsabs.harvard.edu/#abs/2017MNRAS.470..512K Orbital variations in intensity and spectral properties of the highly obscured sgHMXB IGR J16318-4848 - Iyer, Nirmal, Paul, Biswajit (2017-10-01) http://ui.adsabs.harvard.edu/#abs/2017MNRAS.471..355I Primordial black hole dark matter in the context of extra dimensions - Friedlander, Avi, Mack, Katherine J.,Schon, Sarah,Song, Ningqiang,Vincent, Aaron C. (2022-05-01) http://ui.adsabs.harvard.edu/#abs/2022PhRvD.105j3508F Progressive steepening of the SNR RX J1713.7-3946 X-ray spectrum from XMM-Newton to INTEGRAL - Kuznetsova, Ekaterina, Krivonos, Roman,Churazov, Eugene,Lyskova, Natalia,Lutovinov, Alexander (2019-10-01) http://ui.adsabs.harvard.edu/#abs/2019MNRAS.489.1828K Putting all the X in one basket: Updated X-ray constraints on sub-GeV Dark Matter - Cirelli, Marco, Fornengo, Nicolao,Koechler, Jordan,Pinetti, Elena,Roach, Brandon M. (2023-07-01) http://ui.adsabs.harvard.edu/#abs/2023JCAP...07..026C Reflection in Seyfert galaxies and the unified model of AGN - Ricci, C., Walter, R.,Courvoisier, T. J. -L.,Paltani, S. (2011-08-01) http://ui.adsabs.harvard.edu/#abs/2011A&A...532A.102R Search for 511 keV emission in satellite galaxies of the Milky Way with INTEGRAL/SPI - Siegert, Thomas, Diehl, Roland,Vincent, Aaron C.,Guglielmetti, Fabrizia,Krause, Martin G. H.,Boehm, Celine (2016-10-01) http://ui.adsabs.harvard.edu/#abs/2016A&A...595A..25S Searching for γ-Ray Blazar Candidates among the Unidentified INTEGRAL Sources - Massaro, F., Paggi, A.,D Abrusco, R.,Tosti, G. (2012-05-01) http://ui.adsabs.harvard.edu/#abs/2012ApJ...750L..35M Spatial clustering and halo occupation distribution modelling of local AGN via cross-correlation measurements with 2MASS galaxies - Krumpe, Mirko, Miyaji, Takamitsu,Coil, Alison L.,Aceves, Hector (2018-02-01) http://ui.adsabs.harvard.edu/#abs/2018MNRAS.474.1773K ²⁶Al gamma rays from the Galaxy with INTEGRAL/SPI - Pleintinger, Moritz M. M., Diehl, Roland,Siegert, Thomas,Greiner, Jochen,Krause, Martin G. H. (2023-04-01) http://ui.adsabs.harvard.edu/#abs/2023A&A...672A..53P Temporal and Spectral Evolution in X- and γ-Rays of Magnetar 1E 1547.0-5408 since its 2008 October Outburst: The Discovery of a Transient Hard Pulsed Component after its 2009 January Outburst - Kuiper, L., Hermsen, W.,den Hartog, P. R.,Urama, J. O. (2012-04-01) http://ui.adsabs.harvard.edu/#abs/2012ApJ...748..133K The catalog of variable sources detected by INTEGRAL. I. Catalog and techniques - Telezhinsky, I., Eckert, D.,Savchenko, V.,Neronov, A.,Produit, N.,Courvoisier, T. J. -L. (2010-11-01) http://ui.adsabs.harvard.edu/#abs/2010A&A...522A..68T The efficiency of nuclear burning during thermonuclear (Type I) bursts as a function of accretion rate - Cavecchi, Y., Galloway, D. K.,Goodwin, A. J.,Johnston, Z.,Heger, A. (2020-12-01) http://ui.adsabs.harvard.edu/#abs/2020MNRAS.499.2148C The first GRB survey of the IBIS/PICsIT archive - Bianchin, V., Mereghetti, S.,Guidorzi, C.,Foschini, L.,Vianello, G.,Malaguti, G.,Di Cocco, G.,Gianotti, F.,Schiavone, F. (2011-12-01) http://ui.adsabs.harvard.edu/#abs/2011A&A...536A..46B The Galactic Bulge Diffuse Emission in Broadband X-Rays with NuSTAR - Perez, Kerstin, Krivonos, Roman,Wik, Daniel R. (2019-10-01) http://ui.adsabs.harvard.edu/#abs/2019ApJ...884..153P The Galactic ²⁶Al Emission Map as Revealed by INTEGRAL SPI - Bouchet, Laurent, Jourdain, Elisabeth,Roques, Jean-Pierre (2015-03-01) http://ui.adsabs.harvard.edu/#abs/2015ApJ...801..142B The IBIS Soft Gamma-Ray Sky after 1000 Integral Orbits - Bird, A. J., Bazzano, A.,Malizia, A.,Fiocchi, M.,Sguera, V.,Bassani, L.,Hill, A. B.,Ubertini, P.,Winkler, C. (2016-03-01) http://ui.adsabs.harvard.edu/#abs/2016ApJS..223...15B The INTEGRAL/IBIS AGN catalogue: an update - Malizia, A., Landi, R.,Molina, M.,Bassani, L.,Bazzano, A.,Bird, A. J.,Ubertini, P. (2016-07-01) http://ui.adsabs.harvard.edu/#abs/2016MNRAS.460...19M The INTEGRAL/IBIS AGN catalogue - I. X-ray absorption properties versus optical classification - Malizia, A., Bassani, L.,Bazzano, A.,Bird, A. J.,Masetti, N.,Panessa, F.,Stephen, J. B.,Ubertini, P. (2012-11-01) http://ui.adsabs.harvard.edu/#abs/2012MNRAS.426.1750M The INTEGRAL Source IGR J16328-4726: A High-mass X-Ray Binary from the BeppoSAX Era - Fiocchi, M., Bazzano, A.,Bird, A. J.,Drave, S. P.,Natalucci, L.,Persi, P.,Piro, L.,Ubertini, P. (2013-01-01) http://ui.adsabs.harvard.edu/#abs/2013ApJ...762...19F The long-term enhanced brightness of the magnetar 1E 1547.0-5408 - Coti Zelati, Francesco, Borghese, Alice,Rea, Nanda,Vigano, Daniele,Enoto, Teruaki,Esposito, Paolo,Pons, Jose A.,Campana, Sergio,Israel, Gian Luca (2020-01-01) http://ui.adsabs.harvard.edu/#abs/2020A&A...633A..31C The spectral catalogue of INTEGRAL gamma-ray bursts. results of the joint IBIS/SPI spectral analysis - Bosnjak, Z., Gotz, D.,Bouchet, L.,Schanne, S.,Cordier, B. (2014-01-01) http://ui.adsabs.harvard.edu/#abs/2014A&A...561A..25B Time Evolution of Flares in GRB 130925A: Jet Precession in a Black Hole Accretion System - Hou, Shu-Jin, Liu, Tong,Gu, Wei-Min,Lin, Da-Bin,Sun, Mou-Yuan,Wu, Xue-Feng,Lu, Ju-Fu (2014-01-01) http://ui.adsabs.harvard.edu/#abs/2014ApJ...781L..19H Timing properties of gamma-ray bursts detected by SPI-ACS detector onboard INTEGRAL - Savchenko, V., Neronov, A.,Courvoisier, T. J. -L. (2012-05-01) http://ui.adsabs.harvard.edu/#abs/2012A&A...541A.122S Type I X-ray Bursts Detected by the JEM-X Telescope Onboard the INTEGRAL Observatory in 2003-2015 - Chelovekov, I. V., Grebenev, S. A.,Mereminskiy, I. A.,Prosvetov, A. V. (2017-12-01) http://ui.adsabs.harvard.edu/#abs/2017AstL...43..781C Understanding the X-ray spectrum of anomalous X-ray pulsars and soft gamma-ray repeaters - Guo, Yan-Jun, Dai, Shi,Li, Zhao-Sheng,Liu, Yuan,Tong, Hao,Xu, Ren-Xin (2015-04-01) http://ui.adsabs.harvard.edu/#abs/2015RAA....15..525G Unveiling the nature of INTEGRAL objects through optical spectroscopy. X. A new multi-year, multi-observatory campaign - Masetti, N., Parisi, P.,Palazzi, E.,Jimenez-Bailon, E.,Chavushyan, V.,McBride, V.,Rojas, A. F.,Steward, L.,Bassani, L.,Bazzano, A.,Bird, A. J.,Charles, P. A.,Galaz, G.,Landi, R.,Malizia, A.,Mason, E.,Minniti, D.,Morelli, L.,Schiavone, F.,Stephen, J. B.,Ubertini, P. (2013-08-01) http://ui.adsabs.harvard.edu/#abs/2013A&A...556A.120M VerticaVertical position of the Sun with gamma-rays - Siegert, Thomas, (2019-12-01) http://ui.adsabs.harvard.edu/#abs/2019A&A...632L...1S Water megamaser emission in hard X-ray selected AGN - Panessa, F., Castangia, P.,Malizia, A.,Bassani, L.,Tarchi, A.,Bazzano, A.,Ubertini, P. (2020-09-01) http://ui.adsabs.harvard.edu/#abs/2020A&A...641A.162P X-ray absorption in INTEGRAL active galactic nuclei. Host galaxy inclination - Malizia, A., Bassani, L.,Stephen, J. B.,Bazzano, A.,Ubertini, P. (2020-07-01) http://ui.adsabs.harvard.edu/#abs/2020A&A...639A...5M
Temporal Coverage	2009-01-28T14:22:40Z / 2009-02-08T15:58:07Z
Version	1.0
Mission Description	The INTEGRAL (International Gamma-Ray Astrophysics Laboratory) mission, launched by the European Space Agency (ESA) on October 17, 2002, was designed to study high-energy phenomena in the universe. INTEGRAL was operating until february 2025 and it was equipped with three high-energy instruments: the Imager on Board the INTEGRAL Satellite (IBIS), the Spectrometer on INTEGRAL (SPI), and the JEM-X (Joint European Monitor for X-rays). Its Optical Monitoring Camera (OMC) provided optical V-band magnitude measurements, complementing the high-energy observations.
Creator Contact	https://www.cosmos.esa.int/web/integral/helpdesk
Date Published	2025-03-25T09:54:35Z
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Den Hartog, 2025, 'ToO observation of a non-INTEGRAL-detected Anomalous X-ray Pulsar', 1.0, European Space Agency, https://doi.org/10.57780/esa-l3cz1xd