A dataset provided by the European Space Agency

Name 084344
Title Extending a bona fide IMBH sample\: X-ray confirmation of optical AGN candidates
URL

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
Author Dr Igor Chilingarian
Description A population of intermediate black holes (IMBH) will allow us to solve one of
the long-standing problems in modern astrophysics, the origin of supermassive
black holes. Using dedicated analysis of 1 million optical spectra, we
identified a sample of 305 IMBH candidates (3e4<M<2e5 M_Sun), which reside in
galaxy centers and pose as AGN. With XMM-Newton and Chandra DDT observations in
2017 and mining X-ray data archives, we confirmed the AGN nature of 10
candidates, thus validating our IMBH search approach. Here we propose to observe
13 additional optically selected IMBH candidates in order to double the number
of X-ray confirmed accreting IMBHs. This will enable detailed studies of the
IMBH population and help to constrain the masses of seed black holes in the early Universe.
Publication No observations found associated with the current proposal
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 Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Igor Chilingarian, 2021, 084344, 18.02_20200221_1200, European Space Agency, https://doi.org/10.5270/esa-c89qibq