Search Publications
AllBRICQS: The All-sky BRIght, Complete Quasar Survey
Wolf, Christian; Lai, Samuel; Onken, Christopher A. +3 more
We describe the first results from the All-sky BRIght, Complete Quasar Survey (AllBRICQS), which aims to discover the last remaining optically bright quasars. We present 156 spectroscopically confirmed quasars (140 newly identified) having $|b|>10^{\circ}$ . 152 of the quasars have Gaia DR3 magnitudes brighter than $BP=16.5$ or $R
Detection of radio emission from stars via proper-motion searches
Lenc, Emil; Murphy, Tara; Heald, George +4 more
We present a method for identifying radio stellar sources using their proper-motion. We demonstrate this method using the FIRST, VLASS, RACS-low and RACS-mid radio surveys, and astrometric information from Gaia Data Release 3. We find eight stellar radio sources using this method, two of which have not previously been identified in the literature …
A monitoring campaign (2013-2020) of ESA's Mars Express to study interplanetary plasma scintillation
Bocanegra-Bahamón, T. M.; Molera Calvés, G.; Duev, D. A. +19 more
The radio signal transmitted by the Mars Express (MEX) spacecraft was observed regularly between the years 2013-2020 at X-band (8.42 GHz) using the European Very Long Baseline Interferometry (EVN) network and University of Tasmania's telescopes. We present a method to describe the solar wind parameters by quantifying the effects of plasma on our r…
Dashing through the cluster: An X-ray to radio view of UGC 10420 undergoing ram-pressure stripping
Raychaudhury, Somak; Singh, Kulinder Pal; Tiwari, Juhi +1 more
We present multi-wavelength data and analysis, including new FUV AstroSat/UVIT observations of the spiral galaxy UGC 10420 ( z=0.032 ), a member of the cluster Abell 2199. UGC 10420 is present on the edge of the X-ray emitting region of the cluster at a distance of ∼ 680 kpc from the centre. The far-ultraviolet (FUV) data obtained by the AstroSat …
M dwarfs found in the first Byurakan spectral sky survey database. Gaia EDR3 and TESS data. Some preliminary results
Gigoyan, K. K.; Gigoyan, K. S.; Kostandyan, G. R. +5 more
In order to gain more information on the 236 M dwarfs identified in the First Byurakan Survey (FBS) low-resolution (lr) spectroscopic database, Gaia EDR3 high-accuracy astrometric and photometric data and Transiting Exoplanet Survey Satellite (TESS) data are used to characterise these M dwarfs and their possible multiplicity. Among the sample of 2…