| Name | 079084 |
| Title | UV TO HARD X-RAY PROPERTIES OF RAD INEFFIC LOW LUMIN AGN NGC 3998 AND NGC 4579 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0790840101 |
| DOI | https://doi.org/10.5270/esa-5r7bqn5 |
| Author | European Space Agency |
| Description | LLAGN likely have radiatively-inefficient accretion flows (RIAFs) where at least the inner accretion disk is a spherical plasma while the outer regions may be in a standard geometrically-thin accretion disk. We propose to observe two of the brightest LLAGN with NuSTAR and XMM-Newton. The NuSTAR data will provide, for the first time, coverage of these sources up to 50 keV, and the NuSTAR+XMM-Newton broad band spectrum will allow for the measurement (or placing stringent constraints) on the high energy cutoff in these sources, allowing for a comparison to luminous AGN. Using the XMM-Newton OM, these data will provide simultaneous UV-X-ray SED that can be fit to RIAF models. All this will add to the growing number of NuSTAR AGN and extend the hard X-ray properties to very low Eddington rates. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2016-10-26T13:48:38Z/2016-12-06T16:56:14Z |
| Version | 17.56_20190403_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 | 2017-12-22T23:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2017, Uv To Hard X-Ray Properties Of Rad Ineffic Low Lumin Agn Ngc 3998 And Ngc 4579, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-5r7bqn5 |