The XMM-Newton slew view of IGRJ17361-4441: A transient in the globular cluster NGC 6388

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• 作者：A.A. Nucita^a ; ^b ; ^{nucita@le.infn.it} ; F. De Paolis^a ; ^b ; R. Saxton^c ; A.M. Read^d
• 关键词：(Galaxy ; ) globular clusters ; individual (NGC 6388) ; X-rays ; general
• 刊名：New Astronomy
• 出版年：2012
• 期刊代码：39_13841076
• 类别：ph
• 出版时间：August, 2012
• 卷：17
• 期：6
• 页码：589-593
• 文件大小：642 K

摘要

IGRJ17361-4441 is a hard transient recently observed by the INTEGRAL satellite. The source, close to the center of gravity of the globular cluster NGC 6388, quickly became the target of follow-up observations conducted by the Chandra, Swift/XRT and RXTE observatories. Here, we concentrate in particular on a set of observations conducted by the XMM-Newton satellite during two slews, to get the spectral information of the source and search for spectral variations. The spectral parameters determined by the recent XMM-Newton slew observations were compared to the previously known results. The maximum unabsorbed X-ray flux in the 0.5-10 keV band as detected by the XMM-Newton slew observations is 鈮?.5 脳 10^鈭?1 erg cm^鈭? s^鈭?; i.e., it is consistent with that observed by the Swift/XRT satellite 15 days earlier. The spectrum seems to be marginally consistent (螕 鈮?#xA0;0.93 鈭?#xA0;1.63) with what has been derived from the previous high-energy observations.