A dataset provided by the European Space Agency

Name: Constraining the Spectral Energy Distribution of Per A/NGC 1275 with {INTEGRAL and Swift
Published: 2026-03-05T13:05:58Z

Proposal ID	1220037
Obs ID	12200370001, 12200370002, 12200370003, 12200370004, 12200370005
Title	Constraining the Spectral Energy Distribution of Per A/NGC 1275 with {INTEGRAL and Swift
Download Data Associated to the proposal	https://isla.esac.esa.int/tap/download/bundle?format=ascii_curl&product_id=prop_id:1220037
DOI	https://doi.org/10.57780/esa-cwlx1x8
Author	Eckert
Abstract	Per A/3C 84 is a radio galaxy coinciding with the BCG of the Perseus galaxy cluster, NGC 1275. Its jets interact with the intra-cluster gas in the central region of the cluster, creating features in the X-ray image of the cluster. This object is clearly detected by Fermi in the GeV range, thus raising new questions on the nature of its emission. Indeed, several processes can be responsible for the emission detected in the GeV range. In the hard X-ray band, the source was clearly detected by INTEGRAL up to ~80 keV in a 500 ksec observation, and the high-energy signal was found to be significantly variable. We propose a 1 Msec observation of NGC 1275 with INTEGRAL, split into 5 distinct 200 ksec observations in order to analyse the variability of the source simultaneously with Fermi observations. In addition, simultaneous Swift observations are asked to cover the soft X-ray and optical bands. The allocated time will also allow us to constrain the presence or not of a cut-off in the spectrum of this object, and therefore distinguish between the synchrotron and inverse-Compton models for the hard X-ray emission of this source. We request the data only for the Perseus cluster/NGC 1275 source.
Publications	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 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 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 GK Persei and EX Hydrae: Intermediate polars with small magnetospheres - Suleimanov, V., Doroshenko, V.,Ducci, L.,Zhukov, G. V.,Werner, K. (2016-06-01) http://ui.adsabs.harvard.edu/#abs/2016A&A...591A..35S 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 Luminosity dependence of the cyclotron line and evidence for the accretion regime transition in V 0332+53 - Doroshenko, Victor, Tsygankov, Sergey S.,Mushtukov, Alexander A.,Lutovinov, Alexander A.,Santangelo, Andrea,Suleimanov, Valery F.,Poutanen, Juri (2017-04-01) http://ui.adsabs.harvard.edu/#abs/2017MNRAS.466.2143D 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 Observations of V0332+53 during the 2015 outburst using Fermi/GBM, MAXI, Swift and INTEGRAL - Baum, Zachary A., Cherry, Michael L.,Rodi, James (2017-06-01) http://ui.adsabs.harvard.edu/#abs/2017MNRAS.467.4424B Searching for redshifted 2.2 MeV neutron-capture lines from accreting neutron stars: Theoretical X-ray luminosity requirements and INTEGRAL/SPI observations - Ducci, L., Santangelo, A.,Tsygankov, S.,Mushtukov, A.,Ferrigno, C. (2024-10-01) http://ui.adsabs.harvard.edu/#abs/2024A&A...690A.309D 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 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 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 Two giant outbursts of V0332+53 observed with INTEGRAL - Ferrigno, Carlo, Ducci, Lorenzo,Bozzo, Enrico,Kretschmar, Peter,Kuhnel, Matthias,Malacaria, Christian,Pottschmidt, Katja,Santangelo, Andrea,Savchenko, Volodymyr,Wilms, Jorn (2016-10-01) http://ui.adsabs.harvard.edu/#abs/2016A&A...595A..17F V348 And and V572 Per: Bright Triple Systems with Eccentric Eclipsing Binaries - Zasche, P., Uhlar, R.,Svoboda, P.,Jurysek, J.,Korcakova, D.,Wolf, M.,Slechta, M.,Kotkova, L. (2019-08-01) http://ui.adsabs.harvard.edu/#abs/2019AJ....158...95Z 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 Persei: A study on the origin of its high-energy emission - Rodi, J., Natalucci, L.,Fiocchi, M. (2024-09-01) http://ui.adsabs.harvard.edu/#abs/2024A&A...689A.186R 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	2015-02-10T05:52:27Z / 2015-09-18T11:38:36Z
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	2026-03-05T13:05:58Z
Keywords	INTEGRAL gamma-ray data, ESA INTEGRAL mission dataset, gamma-ray astronomy observations, high-energy astrophysics data, IBIS imaging data, SPI spectrometer data, JEM-X X-ray monitoring data, OMC optical monitoring data, coded mask telescope observations, gamma-ray spectroscopy dataset, MeV astrophysics data, keV–MeV photon observations, gamma-ray burst observations dataset, black hole gamma-ray data, neutron star high-energy observations, positron annihilation 511 keV line data, Galactic Center gamma-ray emission dataset, supernova nucleosynthesis gamma-ray lines, active galactic nuclei high-energy data, transient astrophysical source monitoring, calibrated photon event lists, gamma-ray light curves, high-energy spectra data, sky maps gamma-ray, time-series astrophysical observations, long-term gamma-ray monitoring dataset
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Eckert, 2026, 'Constraining the Spectral Energy Distribution of Per A/NGC 1275 with {INTEGRAL and Swift', 1.0, European Space Agency, https://doi.org/10.57780/esa-cwlx1x8