| Name | 091360 |
| Title | THE FIRST SIMULTANEOUS NUSTAR/XMM-NEWTON OBSERVATIONS OF NGC 4395 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0913600101 |
| DOI | https://doi.org/10.57780/esa-pl7dlab |
| Author | European Space Agency |
| Description | Low mass (<10^6Msun) AGN are important not just for understanding the evolution of supermassive black holes, but they vary rapidly through accretion states, allowing the study of physical processes which are unaccessible with larger mass AGN. NGC 4395 (virgul10^5Msun) is the brightest and most variable low mass AGN. Previous observations suggest that the X-ray spectrum shows both harder when brighter and softer when brighter behaviour. This transition is not seen in any other single AGN and may represent a change from coronal synchrotron to disc black body seed photons. This scenario cannot be confirmed without Nustara??s high energy band. Thus, we propose 6x50 ks NuSTAR+6x25 XMM simultaneous pointings. We will also coordinate with HiPERCAM@GTC to obtain precise lags to probe the outer disc. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2022-12-10T05:05:57Z/2022-12-30T21:52:45Z |
| Version | 20.09_20221024_1724 |
| 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 | 2024-03-15T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2024, The First Simultaneous Nustar/Xmm-Newton Observations Of Ngc 4395, 20.09_20221024_1724, European Space Agency, https://doi.org/10.57780/esa-pl7dlab |