|Title||The Elusive Transient AXP|
|Author||Dr George Pavlov|
|Description||ASCA observations of 1993 revealed a point source, AX J1845.0-0258, whose 7 s period and spectrum strongly suggest that it is an anomalous X-ray pulsar (AXP). However, the brightest object seen in further observations with various X-ray missions in the ASCA error circle was a factor of 15 fainter, too faint to detect pulsations and confirm that this source is a transient AXP (TAXP) in a quiescent state. In the proposed observation we will either detect pulsations from the TAXP candidate, thus measuring the period derivative, age and magnetic field, or prove that this object is not related to the originally observed X-ray pulsar. In the latter case, we will either detect an even fainter actual TAXP or establish a stringent upper limit on its quiescent flux.|
|Publication||Chasing the Identification of ASCA Galactic Objects (ChIcAGO): An X-Ray Survey of Unidentified Sources in the Galactic Plane. I. Source Sample and Initial Results . Anderson, Gemma E., Gaensler, B. M., et all. . ApJS . 212-13 . 2014 . 2014ApJS..212...13A ,
Serendipitous UV source catalogues for 10 years of XMM and 5 years of Swift . Yershov, V. N., . Ap&SS . 354-97 . 2014 . 2014Ap&SS.354...97Y ,
A new investigation of the possible X-ray counterparts of the magnetar candidate AX J1845-0258 . Pintore, Fabio, Mereghetti, Sandro, . MNRAS . 460-1033 . 2016 . 2016MNRAS.460.1033P ,
The Chandra ACIS Timing Survey Project: glimpsing a sample of faint X-ray pulsators . Israel, G. L., Esposito, P., et all. . MNRAS . 462-4371 . 2016 . 2016MNRAS.462.4371I ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
Radio and X-ray properties of the source G29.37+0.1 linked to HESS J1844-030 . Castelletti, G., Supan, L., et all. . A&A . 602-31 . 2017 . 2017A&A...602A..31C ,
Exploring the end states of massive stars using the X-ray emission of neutron stars and supernova remnants . Prinz, Tobias, . PhDT . 0-305 . 2013 . 2013PhDT.......305P ,
New composite supernova remnant toward HESS J1844-030? . Petriella, A., . A&A . 626-65 . 2019 . 2019A&A...626A..65P ,
|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, 2011-05-25T00:00:00Z, 060235, 17.56_20190403_1200. https://doi.org/10.5270/esa-s55369r|