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Title: Temperature measurement during thermonuclear X-ray bursts with BeppoSAX
Authors: Beri, Aru
Paul, Biswajit
Orlandini, Mauro
Maitra, Chandreyee
Issue Date: May-2016
Publisher: Elesvier B.V.
Citation: New Astronomy, 2016, Vol. 45, p48-53
Abstract: We have carried out a study of temperature evolution during thermonuclear bursts in LMXBs using broad band data from two instruments onboard BeppoSAX, the MECS and the PDS. However, instead of applying the standard technique of time resolved spectroscopy, we have determined the temperature in small time intervals using the ratio of count rates in the two instruments assuming a blackbody nature of burst emission and different interstellar absorption for different sources. Data from a total of twelve observations of six sources were analyzed during which 22 bursts were detected. We have obtained temperatures as high as ∼3.0 keV, even when there is no evidence of photospheric radius expansion. These high temperatures were observed in the sources within different broadband spectral states (soft and hard).
Description: Restricted Access. An open-access version is available at (one of the alternative locations)
ISSN: 1384-1076
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Copyright: 2015 Elesvier B.V.
Appears in Collections:Research Papers (A&A)

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