| Name | 069037 |
| Title | The mysterious X-ray emission and optical flash of Zeta Lyrae |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0690370101 |
| DOI | https://doi.org/10.5270/esa-m1oktfs |
| Author | European Space Agency |
| Description | Zeta Lyrae is a nearby (d=47 pc) bright (V=4.1) star which has shown an strong optical flash and which shows strong X-ray emission. The system is a single-lined spectroscopic binary. While ordinarily, these properties could all be explained by coronal activity from either the primary or the secondary, the primary here is an A star, and the secondary is both unseen, and has a mass of at least 0.8 solar masses. The source is not detected in the radio down to about 40 microJy (about 20 times below the flux density expected for a stellar mass black hole at this X-ray luminosity). We propose XMM observations to test ideas for the origin of the X-ray emission and hopefully to explain the optical flash as well. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2012-05-12T05:14:20Z/2012-09-02T07:15:42Z |
| 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 | 2013-09-21T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2013, The Mysterious X-Ray Emission And Optical Flash Of Zeta Lyrae, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-m1oktfs |