2003A&A...404..959D

Query : 2003A&A...404..959D

2003A&A...404..959D - Astronomy and Astrophysics, volume 404, 959-967 (2003/6-4)

The interstellar oxygen-K absorption edge as observed by XMM-Newton Separation of instrumental and interstellar components.

DE VRIES C.P., DEN HERDER J.W., KAASTRA J.S., PAERELS F.B., DEN BOGGENDE A.J. and RASMUSSEN A.P.

Abstract (from CDS):

High resolution X-ray spectra of the Reflection Grating Spectrometer (RGS) on board the XMM satellite are used to resolve the oxygen K absorption edge. By combining spectra of low and high extinction sources, the observed absorption edge can be split in the true interstellar (ISM) extinction and the instrumental absorption. The detailed ISM edge structure closely follows the edge structure of neutral oxygen as derived by theoretical R-matrix calculations. However, the position of the theoretical edge requires a wavelength shift. In addition the detailed instrumental RGS absorption edge structure is presented. All results are verified by comparing to a subset of Chandra LETG-HRC observations.

Abstract Copyright: ∼

Journal keyword(s): space vehicles: instruments - X-rays: ISM

Simbad objects: 5

Full paper

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Number of rows : 5

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Sp type	#ref 1850 - 2023	#notes
1	V* V1055 Ori	LXB	06 17 07.3565603963	+09 08 13.515857360		18.80	18.5		~	551	1
2	Mrk 421	BLL	11 04 27.3140835504	+38 12 31.798495872		13.50	12.90	8.31	~	2615	1
3	3C 273	BLL	12 29 06.6998257176	+02 03 08.597629980		13.05	14.830	14.11	~	5711	1
4	V* V818 Sco	LXB	16 19 55.0692669024	-15 38 25.017666540	11.60	12.40	11.1		Oev	1617	0
5	QSO B2155-304	BLL	21 58 52.0652249880	-30 13 32.118447792		13.36	13.09	12.62	~	1698	1

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