X-RAYS FROM SUPERBUBBLES IN THE LARGE MAGELLANIC CLOUD .3. X-RAY-DIM SUPERBUBBLES

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Title:	X-RAYS FROM SUPERBUBBLES IN THE LARGE MAGELLANIC CLOUD .3. X-RAY-DIM SUPERBUBBLES
Authors:	CHU,YH;CHANG,HW;SU,YL;MACLOW,MM
Contributors:	太空科學研究所
Keywords:	INTERSTELLAR BUBBLES;ASSOCIATIONS
Date:	1995
Issue Date:	2010-06-29 18:40:19 (UTC+8)
Publisher:	中央大學
Abstract:	Only X-ray-bright superbubbles have been reported in the past. ROSAT provides an excellent opportunity to study X-ray-dim superbubbles. We have analyzed the ROSAT Position Sensitive Proportional Counter observations of four superbubbles in the Large Magellanic Cloud-DEM 31, DEM 105, DEM 106, and DEM 137. None of the four is detected at more than the 2 sigma level. The observed luminosities and the 3 sigma upper limits are consistent with the luminosities expected from energy-conserving bubbles, These results confirm that not all superbubbles are X-ray bright, suggesting that an intermittent process such as hidden supernova remnants is responsible for the X-ray-bright superbubbles.
Relation:	ASTROPHYSICAL JOURNAL
Appears in Collections:	[Graduate Institute of Space Science] journal & Dissertation

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