Chandra X-ray counterpart of KS 1741-293

Abstract

We aim to investigate the nature of the high energy source KS 1741-293 by revisiting the radio and infrared associations proposed in the early 1990s. Our work is mostly based on the analysis of modern survey and archive data, including the NRAO, MSX, 2MASS and Chandra archives, and catalogues. We also have obtained deep CCD optical observations by ourselves. The coincidence of KS 1741-293 with an extended radio and far-infrared source, tentatively suggested in 1994, is no longer supported by modern observational data. Instead, a Chandra source is the only peculiar object found to be consistent with all high-energy error circles of KS 1741-293 and we propose it to be its most likely X-ray counterpart. We also report the existence of a non-thermal radio nebula in the vicinity of the KS 1741-293 position with the appearance of a supernova remnant. The possibility of being associated to this X-ray binary is discussed.

arXiv comment5 pages, 4 figures, 2 tables. Accepted for publication in Astronomy & Astrophysics

References in corpus (6)

• Discovery of Very-High-Energy Gamma-Rays from the Galactic Centre Ridge
• ASCA X-ray source catalogue in the Galactic Center region
• A Chandra Catalog of X-ray Sources in the Central 150 pc of the Galaxy
• The Zoo of X-ray sources in the Galactic Center Region: Observations with BeppoSAX
• A Persistent High-Energy Flux from the Heart of the Milky Way : Integral's view of the Galactic Center
• A Lack of Radio Emission from Neutron Star Low Mass X-ray Binaries

Cited by in corpus (5)

• The Multi-INstrument Burst ARchive (MINBAR)
• XRBcats: Galactic Low Mass X-ray Binary Catalogue
• NuSTAR Hard X-ray Survey of the Galactic Center Region II: X-ray Point Sources
• Candidate radio supernova remnants observed by the GLEAM survey over $345^{\circ }<l<60^{\circ }$ and $180^{\circ }<l<240^{\circ }$
• INTEGRAL high energy monitoring of the X-ray burster KS 1741-293