| Proposal ID | 092169 |
| Title | Probing the X-ray emission from a unique short-period ZTF source |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0921690101 |
| DOI | https://doi.org/10.57780/esa-xxy5cf3 |
| Principal Investigator, PI | Dr Kaya Mori |
| Abstract | We propose an XMM observation of a 12-min-period source detected by the ZTFoptical survey. Initially speculated to be a CV, this source exhibits highmodulation and day-long flares in the optical band. It is still unknown whetherthe 12-min period represents its spin or orbital period. The optical and X-rayproperties observed so far, including NuSTAR detection of a power-law-like X-rayspectrum up to 30 keV, indicate two possible unusual source types. It is eithera massive intermediate polar hosting a WD that exceeds 1 solar mass, or anultra-compact X-ray binary with the second shortest orbit ever discovered. Weaim to identify the source by determining whether the X-ray spectrum isnon-thermal, exploring the X-ray modulation with the 12-min period, and searching for X-ray flares. |
| Publications | No publications found for current proposal! |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2024-03-19T10:21:11Z/2024-03-20T11:17:51Z |
| Version | 21.23_20231215_1101 |
| 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 | 2025-04-06T00:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | XMM-Newton, OM, RGS, EPIC, X-ray, Multi-Mirror, SAS |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Kaya Mori, 2025, 'Probing the X-ray emission from a unique short-period ZTF source', 21.23_20231215_1101, European Space Agency, https://doi.org/10.57780/esa-xxy5cf3 |