| Name | 084076 |
| Title | HD110432\: the most extreme case amongst gamma-Cas X-ray stars |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0840760201 |
| DOI | https://doi.org/10.5270/esa-jwhwciw |
| Author | Dr Raimundo Lopes de Oliveira |
| Description | We propose to conduct a spectral and photometric characterization of the gamma Cas-like star HD 110432 from a broad energy range. The aims are to confront the multiple-discrete plasma and the cooling plasma scenarios, and look for signs of ..reflection. of X-rays from a cold material. In addition, the investigation will allow us to check for presence of flare-like events in high energies and for extended ..drop-off. time interval in the hard flux. This investigation requires a simultaneous campaign with the XMM-Newton (15 ks) and NuSTAR (100 ks) satelites. The ultimate goal is to contribute to solve one of the bigger X-ray mysteries in massive stars\: the origin of the X-rays of gamma Cas stars; magnetic Be stars or accreting white dwarfs? |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2019-07-21T09:28:19Z/2019-07-21T14:11:39Z |
| Version | 17.56_20190403_1200 |
| 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 | 2020-08-16T22:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Raimundo Lopes de Oliveira, 2020, 084076, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-jwhwciw |