A dataset provided by the European Space Agency

Name: Extending a bona fide IMBH sample: X-ray confirmation of optical AGN candidates
Published: 2021-05-22T00:00:00Z

Proposal ID	084344
Title	Extending a bona fide IMBH sample: X-ray confirmation of optical AGN candidates
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0843440101 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0843440201 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0843440601 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0843440801 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0843441001 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0843441101
DOI	https://doi.org/10.5270/esa-c89qibq
Principal Investigator, PI	Dr Igor Chilingarian
Abstract	A population of intermediate black holes (IMBH) will allow us to solve one ofthe long-standing problems in modern astrophysics, the origin of supermassiveblack holes. Using dedicated analysis of 1 million optical spectra, weidentified a sample of 305 IMBH candidates (3e4
Publications	Long-term X-ray evolution of SDSS J134244.4+053056.1. A more than 18 year-old long-lived IMBH-TDE candidate \|He J. S. Dou L. M. et al. \| A&A \| 652-15 \| 2021 \| 2021A&A...652A..15H \| http://ui.adsabs.harvard.edu/#abs/2021A&A...652A..15H 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 From Active Stars to Black Holes: A Discovery Tool for Galactic X-Ray Sources \|Rodriguez Antonio C. \| PASP \| 136-054201 \| 2024 \| 2024PASP..136e4201R \| http://ui.adsabs.harvard.edu/#abs/2024PASP..136e4201R Search for Young Stellar Objects within 4XMM-DR13 Using CatBoost and SPE \|Ma Xiangyao Zhang Yanxia et al. \| AJ \| 168-210 \| 2024 \| 2024AJ....168..210M \| http://ui.adsabs.harvard.edu/#abs/2024AJ....168..210M
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2019-09-17T18:15:38Z/2020-04-19T21:17:40Z
Version	18.02_20200221_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	2021-05-22T00:00:00Z
Last Update	2026-03-04
Keywords	"modern astrophysics", "dedicated analysis", "accreting imbhs", "XMM", "xmm newton", "imbh search approach", "optical agn candidates", "XMM-Newton", "galaxy centers", "additional optically", "intermediate blackhole imbh", "optical spectra", "2e5 m_sun", "imbh candidates", "imbh population", "supermassive black holes", "chandra ddt"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Igor Chilingarian, 2021, 'Extending a bona fide IMBH sample: X-ray confirmation of optical AGN candidates', 18.02_20200221_1200, European Space Agency, https://doi.org/10.5270/esa-c89qibq