| Proposal ID | 090344 |
| Title | Is NGC 470 HLX1 a pulsar |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0903440201 |
| DOI | https://doi.org/10.57780/esa-l33ndl0 |
| Principal Investigator, PI | Mr Tanuman Ghosh |
| Abstract | We propose to study one known hyperluminous X-ray source, NGC 470 HLX1,simultaneously with XMM and NuSTAR for the first time. Archival soft X-ray datasuggest that the source exhibits a hard pulsator like spectra and shows amarginal hint of pulsed signal. This motivates us to detect the pulsation in thenew high S/N data with high confidence and study its broadband spectralproperties to understand its underlying accretion mechanism which was previouslynot possible due to unavailability of broadband X-ray data. Pulsar population inHLXs are rare, hence, if the detection of pulsation emerge to be a real signal,NGC 470 HLX1 will be the second HLX pulsar. Therefore we propose to coordinate asimultaneous observation with 70 ksec XMM and 120 ksec NuSTAR exposure for NGC 470 HLX1. |
| Publications | No publications found for current proposal! |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2023-01-09T06:01:47Z/2023-01-10T03:58:27Z |
| Version | 21.51_20241115_1113 |
| 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. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2024-02-07T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | XMM-Newton, OM, RGS, EPIC, X-ray, Multi-Mirror, SAS |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Mr Tanuman Ghosh, 2024, 'Is NGC 470 HLX1 a pulsar', 21.51_20241115_1113, European Space Agency, https://doi.org/10.57780/esa-l33ndl0 |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |