A dataset provided by the European Space Agency

Name: MEASURING HARD X-RAY LIGHT ECHOS IN NGC 4051
Published: 2019-11-26T23:00:00Z

Proposal ID	083043
Title	MEASURING HARD X-RAY LIGHT ECHOS IN NGC 4051
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0830430201 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0830430801
DOI	https://doi.org/10.5270/esa-wwdsyog
Principal Investigator, PI	Dr Tracey Turner
Abstract	X-ray reprocessing signatures appear in the timing and spectral characteristicsof AGN. Especially valuable is the direct measurement of the reverberation delayof the reprocessor in response to X-ray continuum variations: extraction of theshape of the transfer function gives the location and extent of thecircumnuclear gas. This is only possible in long observations of rapidlyvariable, bright AGN. To this end, we request a 300 ks NuSTAR exposure with 160ks of XMM data, comprising the first joint observation of NGC 4051. NuSTAR opensup the critical window above 10 keV that is dominated by the undiluted lightecho from the X-ray reprocessor. The proposed campaign will allow us to directlymap the reverberating gas close to the black hole.
Publications	Spectral index-mass accretion rate correlation and evaluation of black hole masses in AGNs 3C 454.3 and M 87 \|Titarchuk, Lev, Seifina, Elena, et al. \| A&A \| 633-73 \| 2020 \| 2020A&A...633A..73T \| http://ui.adsabs.harvard.edu/#abs/2020A&A...633A..73T More than softer-when-brighter: The X-ray powerlaw spectral variability in NGC 4051 \|Wu, Yun-Jing, Wang, Jun-Xian, et al. \| SCPMA \| 63-129512 \| 2020 \| 2020SCPMA..6329512W \| http://ui.adsabs.harvard.edu/#abs/2020SCPMA..6329512W Systematic Study of AGN Clumpy Tori with Broadband X-Ray Spectroscopy: Updated Unified Picture of AGN Structure \|Ogawa, Shoji, Ueda, Yoshihiro, et al. \| ApJ \| 906-84 \| 2021 \| 2021ApJ...906...84O \| http://ui.adsabs.harvard.edu/#abs/2021ApJ...906...84O Exploring the Link between the X-Ray Power Spectra and Energy Spectra of Active Galactic Nuclei \|Yang, Haonan, Jin, Chichuan, \| ApJ \| 936-36 \| 2022 \| 2022ApJ...936...36Y \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...936...36Y A Systematic Study of the Short-term X-Ray Variability of Seyfert Galaxies. I. Diversity of the X-Ray rms Spectra \|Hu, Jingwei, Jin, Chichuan, et al. \| ApJ \| 936-105 \| 2022 \| 2022ApJ...936..105H \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...936..105H Investigation of a small X-ray flaring event in NLS1 galaxy NGC 4051 \|Kumari, Neeraj, Jana, Arghajit, et al. \| MNRAS \| 521-5440 \| 2023 \| 2023MNRAS.521.5440K \| http://ui.adsabs.harvard.edu/#abs/2023MNRAS.521.5440K Testing Physical Scenarios for the Reflection Features of Type-1 AGNs using XMM-Newton and NuSTAR Simultaneous Observations \|Victoria-Ceballos, C\\u00e9sar Ivan, Gonz\\u00e1lez-Mart\\u00edn, Omaira, et al. \| ApJ \| 954-96 \| 2023 \| 2023ApJ...954...96V \| http://ui.adsabs.harvard.edu/#abs/2023ApJ...954...96V
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2018-11-07T09:33:10Z/2018-11-10T09:07:30Z
Version	17.56_20190403_1200
Mission Description	The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earths atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
Creator Contact	https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published	2019-11-26T23:00:00Z
Keywords	"NuSTAR", "xray reprocessor", "ngc 4051", "nustar exposure", "XMM", "spectral characteristics", "xray reprocessing signatures", "especially valuable", "xray continuum variations", "transfer function", "bright agn", "NGC 4051", "circumnuclear gas", "reverberation delay", "black hole", "undiluted light echo", "reverberating gas close", "xmm data"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Tracey Turner, 2019, 'MEASURING HARD X-RAY LIGHT ECHOS IN NGC 4051', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-wwdsyog