We propose to observe one extremely luminous and hard ultraluminousX-ray source, NGC 4254 X2 simultaneously with NuSTAR and XMM to study itsbroadband spectral properties for the first time and search for pulsation inthe new high S/N data. The source is well isolated from other X-ray sourcesbut has received very little observational attention so far, and hence, thebroadband spectral features of this source are still unknown. Analysis ofarchival soft X-ray data suggests that this source is a potential pulsar ULXcandidate. New broadband data can potentially confirm this prediction whileconstraining the physical parameters related to the accretion.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2023-01-01T05:09:58Z/2023-01-02T17:32:58Z
Version
20.09_20221024_1724
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, Mr Tanuman Ghosh, 2024, 'BROADBAND STUDY OF A HARD ULX comma NGC 4254 X2', 20.09_20221024_1724, European Space Agency, https://doi.org/10.57780/esa-ckufawx
