Search Publications
MeerKAT observations of starburst galaxies and AGNs within the core of XMMXCS J2215.9-1738 at z = 1.46
Smail, I.; Heywood, I.; Swinbank, A. M. +4 more
We present the first detailed radio study of the galaxy cluster XMMXCS J2215.9-1738 at z = 1.46 using MeerKAT L-band (1.3 GHz) observations. We combine our radio observation with archival optical and infrared data to investigate the star formation and active galactic nucleus (AGN) population within $R_{200}$ ($R =$ 0.8 Mpc) of the cluster centre. …
The Radcliffe wave as traced by young open clusters: Stellar parameters, activity indicators, and abundances of solar-type members of eight young clusters
Vallenari, A.; Bragaglia, A.; Frasca, A. +7 more
The Radcliffe wave has only recently been recognised as a ≈3 kpc long coherent gas structure encompassing most of the star-forming regions in the solar vicinity. Since its discovery, it has been mainly studied from the perspective of dynamics, but a detailed chemical study is necessary to understand its nature and the composition of the natal clou…
DIAmante TESS AutoRegressive Planet Search (DTARPS). III. Understanding the DTARPS-S Candidate Transiting Planet Catalogs
Feigelson, Eric D.; Montalto, Marco; Melton, Elizabeth J. +3 more
The DIAmante Transiting Exoplanet Sky Survey (TESS) AutoRegressive Planet Search (DTARPS) project, using novel statistical methods, has identified several hundred candidates for transiting planetary systems obtained from 0.9 million full-frame Image light curves obtained in the TESS Year 1 southern-hemisphere survey. Ten lines of evidence includin…
Sinuous Aurora at Mars: A Link to the Tail Current Sheet?
Ramstad, Robin; Lillis, Robert J.; Deighan, Justin +18 more
We examine the newly discovered phenomena of sinuous aurora on the nightside of Mars, using images of 130.4 and 135.6 nm oxygen emission measured by the Emirates Mars Mission EMUS ultraviolet spectrograph, and upstream measurements from the MAVEN and Mars Express spacecraft. They are detected in ∼3% of observations, totaling 73 clear detections. T…
Toward Precision Cosmology with Improved Planetary Nebula Luminosity Function Distances Using VLT-MUSE. II. A Test Sample from Archival Data
Weilbacher, Peter M.; Roth, Martin M.; Ciardullo, Robin +2 more
Thanks to the MUSE integral field spectrograph on board the Very Large Telescope (VLT), extragalactic distance measurements with the [O III] λ5007 planetary nebula luminosity function (PNLF) are now possible out to ∼40 Mpc. Here we analyze the VLT/MUSE data for 20 galaxies from the ESO public archive to identify the systems' planetary nebulae (PNe…
Probing the Distinct Extinction Law of the Pillars of Creation in M16 with JWST
Gao, Jian; Chen, Xi; Jiang, Biwei +2 more
Investigating the extinction law in regions of high dust extinction, such as the Pillars of Creation within the M16 region, is crucial for understanding the densest parts of the interstellar medium (ISM). In this study, we utilize observations from the Near-Infrared Camera and the Mid-Infrared Instrument onboard the James Webb Space Telescope (JWS…
The Reliability of Accretion Disk Inclination Derived from X-Ray Spectroscopy of Active Galaxies
Ho, Luis C.; Li, Ruancun; Ding, Yuanze +1 more
The inclination angle of substructures in active galaxies gives insights into physical components from scales of the vicinity of the central black hole to the entire host galaxy. We use the self-consistent reflection spectral model RELXILL to measure the inclination of the inner region of accretion disks with broadband (0.3–78 keV) X-ray observati…
3D physical structure and angular expansion of the remnant of the recurrent nova T Pyx
Guerrero, M. A.; Toalá, J. A.; Santamaría, E. +2 more
We present the analysis of archival Very Large Telescope (VLT) Multi-Unit Spectroscopic Explorer (MUSE) and multi-epoch Hubble Space Telescope (HST) Wide Field Planetary Camera 2 (WFPC2) and Wide Field Camera 3/Ultraviolet-Visible Imaging Spectrograph (WFC3/UVIS) narrow-band observations of the remnant associated with the ejecta of the mid-ninetee…
MEMPSEP-III. A Machine Learning-Oriented Multivariate Data Set for Forecasting the Occurrence and Properties of Solar Energetic Particle Events Using a Multivariate Ensemble Approach
Chatterjee, Subhamoy; Dayeh, Maher A.; Muñoz-Jaramillo, Andrés. +3 more
We introduce a new multivariate data set that utilizes multiple spacecraft collecting in-situ and remote sensing heliospheric measurements shown to be linked to physical processes responsible for generating solar energetic particles (SEPs). Using the Geostationary Operational Environmental Satellites (GOES) flare event list from Solar Cycle (SC) 2…
X-ray variability of SDSS quasars based on the SRG/eROSITA all-sky survey
Bikmaev, I. F.; Gilfanov, M. R.; Medvedev, P. S. +6 more
We examine the long-term (rest-frame time-scales from a few months to ~20 yr) X-ray variability of a sample of 2344 X-ray bright quasars from the Sloan Digital Sky Survey (SDSS) data release 14 quasar (DR14Q) catalogue, based on the data of the Spectrum-Roentgen-Gamma (SRG)/eROSITA All-Sky Survey complemented for ~7 per cent of the sample by archi…