A dataset provided by the European Space Agency

Name: TRACKING ACCRETION POWER INTO THE LOW LUMINOSITY REGIME
Published: 2018-11-14T23:00:00Z

Proposal ID	079573
Title	TRACKING ACCRETION POWER INTO THE LOW LUMINOSITY REGIME
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0795730101
DOI	https://doi.org/10.5270/esa-ezbcisd
Principal Investigator, PI	Dr Patricia Arevalo
Abstract	The accretion flow in AGN changes its structure when the accretion rate drops.High power AGN are softer when brighter while low-luminosity sources do theopposite. The transition point is not well known, largely because of theimprecise determination of the spectral slope, whose dynamic range is verysmall. What happens to the accretion flow at low rates is also not wellunderstood, either a RIAF or a jet are possible. In this proposal we targetthree low accretion rate AGN to measure their spectral slope, and confirm orreject spectral curvature, which would point to a RIAF. The targets belong to aflux limited sample covering a wide range in accretion rates. They fill themid-low L/L Edd range, crucial to follow the evolution of the X-ray emission at the turning point.
Publications	Constraining X-ray reflection in the low-luminosity AGN NGC 3718 using NuSTAR and XMM-Newton \|Diaz, Y., Ar\\u00e9valo, P., et al. \| MNRAS \| 496-5399 \| 2020 \| 2020MNRAS.496.5399D \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.496.5399D Classification of 4XMM-DR9 sources by machine learning \|Zhang, Yanxia, Zhao, Yongheng, \| MNRAS \| 503-5263 \| 2021 \| 2021MNRAS.503.5263Z \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.503.5263Z Constraining the X-ray reflection in low accretion-rate active galactic nuclei using XMM-Newton, NuSTAR, and Swift \|Diaz, Y., Hern\\u00e0ndez-Garc\\u00eda, L., et al. \| A&A \| 669-114 \| 2023 \| 2023A&A...669A.114D \| http://ui.adsabs.harvard.edu/#abs/2023A&A...669A.114D Coronal properties of low-accreting AGNs using Swift, XMM-Newton, and NuSTAR observations \|Jana, Arghajit, Chatterjee, Arka, et al. \| MNRAS \| 524-4670 \| 2023 \| 2023MNRAS.524.4670J \| http://ui.adsabs.harvard.edu/#abs/2023MNRAS.524.4670J The XMM-Newton Line Emission Analysis Program (X-LEAP). I. Emission-line Survey of O VII, O VIII, and Fe L-shell Transitions \|Pan, Zeyang, Qu, Zhijie, et al. \| ApJS \| 271-62 \| 2024 \| 2024ApJS..271...62P \| http://ui.adsabs.harvard.edu/#abs/2024ApJS..271...62P
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2017-10-24T11:15:19Z/2017-10-24T21:48:39Z
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	2018-11-14T23:00:00Z
Keywords	"edd range", "accretion rates", "tracking accretion power", "reject spectral curvature", "low rates", "mid low", "power agn", "targets belong", "low luminosity regime", "dynamic range", "accretion flow", "accretion rate drops", "xray emission", "spectral slope", "flux limited sample", "wide range", "low luminosity sources"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Patricia Arevalo, 2018, 'TRACKING ACCRETION POWER INTO THE LOW LUMINOSITY REGIME', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ezbcisd