2004ApJ...617L..33M

Query : 2004ApJ...617L..33M

2004ApJ...617L..33M - Astrophys. J., 617, L33-L36 (2004/December-2)

X-ray line-emitting objects in XMM-newton observations: the tip of the iceberg.

MACCACARO T., BRAITO V., DELLA CECA R., SEVERGNINI P. and CACCIANIGA A.

Abstract (from CDS):

We present preliminary results from a novel search for X-ray line-emitting objects (XLEOs) in XMM-Newton images. Three sources have been detected in a test-run analysis of 13 XMM-Newton observations. The three objects found are most likely extremely absorbed active galactic nuclei characterized by a column density NH∼1024/cm2. Their redshift has been directly determined from the X-ray data, by interpreting the detected emission line as the 6.4 keV Fe line. The measured equivalent width of the X-ray line is, in all three cases, several keV. This pilot study demonstrates the success of our search method and implies that a large sample of XLEOs can be obtained from the public XMM-Newton data archive.

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Journal keyword(s): Galaxies: Active - Galaxies: Nuclei - Surveys - X-Rays: Galaxies

Nomenclature: Table 1: [MBD2004] XLEO JHHMMSS+DDMMSS N=3 = XLEO JHHMM+DDMM N=3.

Simbad objects: 5

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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 Mag I Sp type #ref
1850 - 2026 		#notes
1 ClG J1252-2927 ClG 12 52 54.4 -29 27 17           ~ 158 0
2 XLEO J1532-0829 X 15 32 40.6 -08 29 03           ~ 1 0
3 XLEO J2204-0151 X 22 04 24.9 -01 51 28           ~ 1 0
4 XLEO J2227-0515 X 22 27 44.3 -05 15 24           ~ 1 0
5 Z 430-26 Sy2 22 54 19.673 +11 46 56.85   15.7       ~ 72 0

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