AN EXTREME LUMINOUS X-RAY SOURCE CATALOG BASED on CHANDRA ACIS OBSERVATIONS

Hang Gong; Jifeng Liu; Thomas Maccarone

doi:10.3847/0067-0049/222/1/12

AN EXTREME LUMINOUS X-RAY SOURCE CATALOG BASED on CHANDRA ACIS OBSERVATIONS

Hang Gong, Jifeng Liu, Thomas Maccarone

Physics

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Using Chandra archive data we conduct a thorough survey of luminous X-ray sources. We directly analyze about 9400 ACIS Observations and cross-correlate the X-ray sources with 77,000 galaxies within 250 Mpc. The final catalog includes 119 unique luminous X-ray source candidates with L_X > 3 × 10⁴⁰ erg s^-1 from 93 galaxies or 41 HLX candidates with L_X > 3 × 10⁴⁰ erg s^-1 from 35 galaxies. We derive a moderate contamination rate due to foreground or background sources. We also cross-correlate the catalog with FIRST, perform variability and periodicity tests, and analyze one HLX candidate in particular. Our catalog could be a starting point to perform follow-up observations.

Original language	English
Article number	12
Journal	Astrophysical Journal, Supplement Series
Volume	222
Issue number	1
DOIs	https://doi.org/10.3847/0067-0049/222/1/12
State	Published - Jan 1 2016

Keywords

X-rays: binaries
X-rays: galaxies
catalogs
galaxies: general

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N2 - Using Chandra archive data we conduct a thorough survey of luminous X-ray sources. We directly analyze about 9400 ACIS Observations and cross-correlate the X-ray sources with 77,000 galaxies within 250 Mpc. The final catalog includes 119 unique luminous X-ray source candidates with LX > 3 × 1040 erg s-1 from 93 galaxies or 41 HLX candidates with LX > 3 × 1040 erg s-1 from 35 galaxies. We derive a moderate contamination rate due to foreground or background sources. We also cross-correlate the catalog with FIRST, perform variability and periodicity tests, and analyze one HLX candidate in particular. Our catalog could be a starting point to perform follow-up observations.

AB - Using Chandra archive data we conduct a thorough survey of luminous X-ray sources. We directly analyze about 9400 ACIS Observations and cross-correlate the X-ray sources with 77,000 galaxies within 250 Mpc. The final catalog includes 119 unique luminous X-ray source candidates with LX > 3 × 1040 erg s-1 from 93 galaxies or 41 HLX candidates with LX > 3 × 1040 erg s-1 from 35 galaxies. We derive a moderate contamination rate due to foreground or background sources. We also cross-correlate the catalog with FIRST, perform variability and periodicity tests, and analyze one HLX candidate in particular. Our catalog could be a starting point to perform follow-up observations.

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KW - X-rays: galaxies

KW - catalogs

KW - galaxies: general

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AN EXTREME LUMINOUS X-RAY SOURCE CATALOG BASED on CHANDRA ACIS OBSERVATIONS

Abstract

Keywords

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