| Name | 020135 |
| Title | MAINTAINING THE EPHEMERIS OF THE GEMINGA PULSAR UNTIL GLAST |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0201350101 |
| DOI | https://doi.org/10.5270/esa-3qhpu3c |
| Author | Prof JULES HALPERN |
| Description | The Geminga pulsar is unique among gamma-ray pulsars in having a precise and continuous, phase-connected ephemeris from 1973 up to the present. Since the demise of the Compton Gamma-ray Observatory in June 2000, the only practical method of maintaining Geminga.s ephemeris is with X-ray observations. Following the initial XMM observation of Geminga in April 2002, we propose to make shorter additional observations approximately once per year until 2006, when GLAST will resume the gamma-ray timing of Geminga. The principal scientific need for a phase-connected ephemeris is to provide an absolute phase reference for ground-based observations, in particular, for our own efforts to detect optical pulsations using a phase-binning CCD camera at Palomar Observatory. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2004-03-13T14:55:08Z/2004-03-13T22:12:42Z |
| 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 | 2005-05-01T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2005-05-01T00:00:00Z, 020135, 17.56_20190403_1200. https://doi.org/10.5270/esa-3qhpu3c |