|Title||ToO Observations of Galactic Gamma-ray Transients Discovered with Fermi|
|Author||Dr Dirk Pandel|
|Description||The Fermi, AGILE, and EGRET gamma-ray telescopes have discovered more than a dozen transient sources of GeV gamma rays near the Galactic plane. Only six of these sources have been identified at other wavelengths, four as novae, a new class of GeV gamma-ray sources. The physical nature of the other Galactic gamma-ray transients is still unknown. These GeV transients may potentially represent a new class of gamma-ray emitting objects. We propose XMM-Newton ToO observations of new transients discovered with the Fermi LAT in the Galactic plane. The XMM-Newton observations will enable us to more accurately localize the transients, identify counterparts at other wavelengths, determine their X-ray flux and spectrum, and characterize their variability.|
|Publication||No observations found associated with the current proposal|
|Instrument||EMOS1, EMOS2, EPN, OM, RGS1, RGS2|
|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.
|Publisher And Registrant||European Space Agency|
|Credit Guidelines||European Space Agency, 2017-02-05T23:00:00Z, 074280, 17.56_20190403_1200. https://doi.org/10.5270/esa-7cydqp1|