| Name | 015290 |
| Title | XMM-Newton observation of a sample of HBL BL Lacs with extreme SEDs |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0152900201 |
| DOI | https://doi.org/10.5270/esa-krac8ae |
| Author | Dr Paolo Giommi |
| Description | We propose to observe with XMM-Newton 13 BL Lacs to perform an X-ray and multi-frequency study of a complete sample of extreme high-energy-peaked -HBL- BL Lacs. These sources have been chosen from the Sedentary Survey, the largest existing flux-limited and complete sample of BL Lacs, to be those with the highest fx-fr ratio for which a detailed X-ray spectrum is not yet available. They are part of a larger and well defined sample partly observed with BeppoSAX. We will combine their X-ray spectra with OM optical grism data and observations at other frequencies to determine their SEDs. This will allow us to make a statistically meaningful study of the particle acceleration and emission mechanisms in a well-defined sample of BL Lacs. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2003-09-05T04:53:35Z/2003-09-05T06:53:59Z |
| 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 | 2004-10-11T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2004-10-11T00:00:00Z, 015290, 17.56_20190403_1200. https://doi.org/10.5270/esa-krac8ae |