A sky survey of ultraviolet sources observed through AstroSat's UVIT: A point source catalogue

被引：0

作者：

Bordoloi, Swagat ^{[1
]}

Shalima, P. ^{[2
]}

Gogoi, Rupjyoti ^{[1
]}

Murthy, Jayant ^{[3
]}

机构：

[1] Tezpur Univ, Dept Phys, Napaam, Assam, India

[2] Manipal Acad Higher Educ, Manipal Ctr Nat Sci, Manipal, Karnataka, India

[3] Indian Inst Astrophys, Bengaluru, Karnataka, India

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA | 2024年 / 41卷

关键词：

astrometry; catalogues; IMAGING TELESCOPE; EXPLORER; JUDE;

D O I：

10.1017/pasa.2024.80

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Ultra Violet Imaging Telescope (UVIT) onboard India's first dedicated multiwavelength satellite AstroSat observed a significant fraction of the sky in the ultraviolet with a spatial resolution of 1.4''. We present a catalogue of the point sources observed by UVIT in the far ultraviolet (FUV; 1 300-1 800 angstrom) and near ultraviolet (NUV; 2 000-3 000 angstrom). We carried out astrometry and photometry of 428 field pointings in the FUV and 54 field pointings in the NUV band, observed in 5 filter bands in each channel, respectively, covering an area of about 63 square degrees. The final catalogue contains about 102 773 sources. The limiting magnitude(AB) of the F148W band filter, that has the largest number of detections is similar to 21.3. For the NUV channel, we find the limiting magnitude at around similar to 23. We describe the final catalogue and present the results of the statistical analysis.

引用

页数：8

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