The XMM-Newton serendipitous survey -: II.: First results from the AXIS high galactic latitude medium sensitivity survey

被引：68

作者：

Barcons, X ^{[1
]}

Carrera, FJ

Watson, MG

McMahon, RG

Aschenbach, B

Freyberg, MJ

Page, K

Page, MJ

Roberts, TP

Turner, MJL

Barret, D

Brunner, H

Ceballos, MT

Della Ceca, R

Guillout, P

Hasinger, G

Maccacaro, T

Mateos, S

Motch, C

Negueruela, I

Osborne, JP

Pérez-Fournon, I

Schwope, A

Severgnini, P

Szokoly, GP

Webb, NA

Wheatley, PJ

Worrall, DM

机构：

[1] Inst Fis Cantabria, CSIC, UC, Santander 39005, Spain

[2] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England

[3] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England

[4] Max Planck Inst Extraterr Phys, D-85741 Garching, Germany

[5] UCL, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England

[6] Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 04, France

[7] Astrophys Inst Potsdam, D-14482 Potsdam, Germany

[8] Osserv Astron Brera, I-20121 Milan, Italy

[9] Observ Astron, F-67000 Strasbourg, France

[10] Inst Astrofis Canarias, Tenerife 38200, Spain

[11] Univ Florence, Dipartimento Astron & Sci Spazio, I-50125 Florence, Italy

[12] Univ Bristol, Dept Phys, Bristol BS8 1TL, Avon, England

来源：

ASTRONOMY & ASTROPHYSICS | 2002年 / 382卷 / 02期

关键词：

X-rays; general; galaxies; stars; galaxies : active;

D O I：

10.1051/0004-6361:20011615

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the first results on the identifications of a medium sensitivity survey (X-ray flux limit 2 x 10(-14) erg cm(-2) s(-1) in the 0.5-4.5 keV band) at high galactic latitude (\b\ > 20degrees) carried out with the XMM-Newton X-ray observatory within the AXIS observing programme. This study is being conducted as part of the XMM-Newton Survey Science Centre activities towards the identification of the sources in the X-ray serendipitous sky survey. The sample contains 29 X-ray sources in a solid angle of 0.26 deg(2) (source density 113 +/- 21 sources deg(-2)), out of which 27 (93%) have been identified. The majority of the sources are broad-line AGN (19), followed by narrow emission line X-ray emitting galaxies (6, all of which turn out to be AGN), 1 nearby non-emission line galaxy (NGC 4291) and 1 active coronal star. Among the identified sources we find 2 broad-absorption line QSOs (z similar to 1.8 and z similar to 1.9), which constitute similar to10% of the AGN population at this flux level, similar to optically selected samples. Identifications of a further 10 X-ray sources fainter than our survey limit are also presented.

引用

页码：522 / 536

页数：15

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