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The image above shows ASKAP, VLA and ATCA radio contours around the position of the ultra-luminous X-ray source NGC 925 ULX 1, on top of an optical image. From Zhang et al. 2026.

Radio Counterparts of Ultraluminous X-Ray Sources in Nearby Galaxies

February 3, 2026

Radio surveys of ultraluminous X-ray sources (ULXs) allow the identification of supercritically accreting compact objects or stripped nuclear black holes in nearby galaxies. Zhang et al. identified 21 such objects […]

Ultra-deep ATCA observation of the globular cluster omega Centauri, which shows not evidence of radio emission associated with the putative intermediate mass black hole at its centre. From Mahida et al. 2026

No Evidence for Accretion around the Intermediate-mass Black Hole in Omega Centauri

February 2, 2026

X-ray observations and gravitational wave detections have identified a population of stellar-mass black holes with masses up to 200 times that of the Sun. This complement the well-established population of […]

Welcome to the ATNF Daily Astronomy Picture (ADAP), brought to you by staff and users of the Australia Telescope National Facility (ATNF). Our aim is to present science and engineering results, research highlights from recent publications, technical updates, telescope pictures, conference summaries, etc.

Our site was inspired by the fabulous Astronomy Picture of the Day – @APOD and the ASTRON/Jive Daily Image – @dailyimage.

We welcome all ATNF users to submit an image related to our facilities (Parkes, ATCA, Mopra, ASKAP and LBA), together with a brief description and credits. Submissions can be emailed to the ADAP curator, (phil.edwards [at] csiro.au).

The ADAP was created in December 2014 by Baerbel Koribalski and Simon Johnston. Over 2500 ADAPs have now been published. Vince McIntyre, Nathan Pope, and Andrew O’Brien are acknowledged for their dedicated technical support. The ADAP is currently curated by Phil Edwards.