SRG/ART-XC Galactic Plane Survey near Galactic Longitude L ≃ 20°: Catalog of Sources

被引：0

作者：

Karasev, D. I. ^{[1
]}

Semena, A. N. ^{[1
]}

Mereminskiy, I. A. ^{[1
]}

Lutovinov, A. A. ^{[1
]}

Burenin, R. A. ^{[1
]}

Krivonos, R. A. ^{[1
]}

Sazonov, S. Yu. ^{[1
]}

Arefiev, V. A. ^{[1
]}

Buntov, M. V. ^{[1
]}

Lapshov, I. Yu. ^{[1
]}

Levin, V. V. ^{[1
]}

Pavlinsky, M. N. ^{[1
]}

Tkachenko, A. Yu. ^{[1
]}

Shtykovsky, A. E. ^{[1
]}

机构：

[1] Russian Acad Sci, Space Res Inst, Moscow 117997, Russia

来源：

ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS | 2023年 / 49卷 / 11期

关键词：

Galactic plane; X-ray sky surveys; catalog of sources; SRGA J183220.1-103508; CXOGSG J183220.8-103510; IGR J18214-1318; THERMONUCLEAR; COMPILATION;

D O I：

10.1134/S1063773723110038

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a catalog of sources detected by the Mikhail Pavlinsky ART-XC telescope onboard the SRG space observatory during the observations of the Galactic plane region near a longitude l similar or equal to 20(degrees) (L20 field) in October 2019. The L20 field was observed four times in the scanning mode, which provided a uniform coverage of the sky region with a total area of similar or equal to 24 deg(2) with a median sensitivity of 8x10(-13) erg s(-1) cm(-2) (at 50% detection completeness) in the 4-12 keV energy band. As a result, we have detected 29 X-ray sources at a statistically significant level, 11 of which have not been detected previously by other X-ray observatories. Preliminary estimates show that four of them can presumably be extragalactic in nature. We also show that the source SRGA J183220.1-103508 (CXOGSG J183220.8-103510) is most likely a galaxy cluster containing a bright radio galaxy at redshift z similar or equal to 0.121.

引用

页码：662 / 672

页数：11

共 50 条

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