X-ray emission from O-type stars: DH Cep and HD 97434

dc.contributor.author	Bhatt, H.
dc.contributor.author	Pandey, J. C.
dc.contributor.author	Kumar, B.
dc.contributor.author	Sagar, R.
dc.contributor.author	Singh, K. P.
dc.date.accessioned	2010-07-14T04:34:46Z
dc.date.available	2010-07-14T04:34:46Z
dc.date.issued	2010
dc.identifier.uri	http://hdl.handle.net/123456789/696
dc.description.abstract	We present X-ray emission characteristics of the massive O-type stars DH Cep and HD 97434 using archival XMM-Newton observations. There is no convincing evidence for short-term variability in the X-ray intensity during the observations. However, the analysis of their spectra reveals X-ray structure being consistent with two-temperature plasma model. The hydrogen column densities derived from X-ray spectra of DH Cep and HD 97434 are in agreement with the reddening measurements for their corresponding host clusters NGC 7380 and Trumpler 18, indicating that the absorption by stellar wind is negligible. The X-ray emission from these hot stars is interpreted in terms of the standard instability-driven wind-shock model.	en_US
dc.language.iso	en	en_US
dc.relation.ispartofseries	newast15-755
dc.subject	Star-X-ray, Binary, Star-Wind	en_US
dc.title	X-ray emission from O-type stars: DH Cep and HD 97434	en_US
dc.type	Article	en_US