In May 2019 the black hole GRS 1915+105 underwent a transition to a new.obscured X-ray state., characterised by markedly increased radio flaringactivity. Despite the apparent drop in the X-ray output, the radio jet seems tobe fed at high rates, similarly to what has been observed in V404 Cyg in 2015.We are observing the target on October 12th, 2019 simultaneously with XMM andINTEGRAL (DDT), and a number of radio facilities. Here we propose a follow-upTarget of Opportunity observation of GRS 1915+105, to be performedsimultaneously by XMM and INTEGRAL (45ks each) when GRS 1915+105 evolves awayfrom this new obscured state (and perhaps to quiescence after 27 years), toprobe the accretion/ejection processes. Similar length radio coverage is guaranteed through pre-approved time.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2021-10-09T13:16:53Z/2021-10-10T05:21:53Z
Version
19.17_20220121_1250
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.
European Space Agency, Dr Sara Elisa Motta, 2022, 'A micro-quasar acting out\: probing yet another temper tantrum in GRS 1915+105', 19.17_20220121_1250, European Space Agency, https://doi.org/10.57780/esa-b5ftyhm
