Amendment to ATel 1859: CXOM31 J004245.9+411036 is Previously Reported XMMU J004245.9+411036
The object CXOM31 J004245.9+411036, reported as a new X-ray source in ATel #1859 from M31 Chandra observations, is the previously reported XMMU J004245.9+411036...
An Atlas of Optical Continuum and Line Emission from Low-Mass X-Ray Binaries
Broadband optical spectra of a sample of 15 low-mass X-ray binaries (LMXBs) is obtained in the range of 4000-9000 A. The spectra are fitted with combinations of...
An X-Ray and Radio View of the 2022 Reactivation of the Magnetar SGR J1935+2154
Recently, the Galactic magnetar SGR J1935+2154 has garnered attention due to its emission of an extremely luminous radio burst, reminiscent of fast radio bursts...
Aql X-1 back in outburst: multi-wavelength observations
On November 1st. RXTE-PCA scans of the Aql region detected X-ray emission consistent with the neutron star transient and atoll source Aql X-1. Further scans and...
In July, the transient neutron star low-mass X-ray binary Aql X-1 was detected in outburst at X-ray, UV, optical and near-infrared wavelengths (ATel #2742,...
Aql X-1 transition towards the soft (banana) state accompanied by radio/NIR detection
The currently active neutron star transient and atoll source Aql X-1 (Linares et al., ATEL #2288) has begun the transition from the hard (extreme island) state...
Are Q-stars a serious threat for stellar-mass black hole candidates?
We examine the status of the threat posed to stellar-mass black hole candidates by the possible existence of Q-stars (compact objects with an exotic equation of...
ATCA radio observations of Swift J1756.9-2508 in outburst
Swift J1756.9-2508 was discovered by the X-ray satellite Swift during an outburst in 2007 (ATEL #1105) and recognized immediately as an accretion-driven...