F. Cavallaro

Enabling high-frequency capability on the MeerKAT radio telescope in the SKA era: the STILES MeerKAT band 5B project

Maria Grazia Labate, G. Umana, Ugo Di Giammatteo, Corrado Trigilio et autres

The STILES MeerKAT Band 5B project is extending the high-frequency capability of the MeerKAT radio telescope through the deployment of a complete Band 5B observing system comprising 64 cryogenic dual-polarization receivers, dedicated down-converting digitizers, correlator and beamforming capabilities, backend processing resources, monitoring …

it, Afrique du Sud (code pays fourni par la source)

Compact radio sources in the SCORPIO field

S. Riggi, Umana G, Trigilio C, F. Cavallaro et autres

it, Afrique du Sud, au, mx, gb, pl, es, cn, ca, fr (code pays fourni par la source)

Discovery of a radio-flaring M dwarf in a commensal transient search of the LADUMA field

Moses Mlangeni, P. A. Woudt, Paul J Groot, Alex Andersson et autres

ABSTRACT We report the discovery and characterization of MKT J032848.4–271904.6, a new radio transient identified in the LADUMA field using SARAO Science Data Processor SDP UHF-band images from approximately 1 yr of MeerKAT observations. Using the Transient Pipeline TraP and advanced filtering …

Afrique du Sud, rs, nl, gb, it, sk, au (code pays fourni par la source)

Discovery of a radio-flaring M dwarf in a commensal transient search of the LADUMA field

Moses Mlangeni, Patrick A. Woudt, P Groot, Alex Andersson et autres

We report the discovery and characterisation of MKT J032848.4-271904.6, a new radio transient identified in the LADUMA field using SARAO Science Data Processor (SDP) UHF-band images from approximately one year of MeerKAT observations. Using the Transient Pipeline (TraP) and advanced filtering techniques, …

Discovery of a radio-flaring M dwarf in a commensal transient search of the LADUMA field

Moses Mlangeni, Patrick A. Woudt, Paul J. Groot, Alex Andersson et autres

We report the discovery and characterisation of MKT J032848.4-271904.6, a new radio transient identified in the LADUMA field using SARAO Science Data Processor (SDP) UHF-band images from approximately one year of MeerKAT observations. Using the Transient Pipeline (TraP) and advanced filtering techniques, …

Afrique du Sud, gb, it, nl, sk, au (code pays fourni par la source)

Discovery of Sulfur Oxides in the Ejecta of a B[e] Supergiant

Cristóbal Bordiú, J. R. Rizzo, D. Navarro-Almaida, A. Fuente et autres

Abstract B[e] supergiants represent a rare class of luminous, evolved massive stars surrounded by dusty circumstellar disks. Since their intense UV fields were long thought to sterilize their surroundings, molecular detections beyond carbon monoxide have remained elusive, leaving their chemical reservoirs largely …

es, it, cl (code pays fourni par la source)

Coherent and Incoherent Emission from the Ordered Magnetospheres of Low-Mass Stars, UCDs, and Massive Stars

F. Cavallaro, P. Leto, Barnali Das, Corrado Trigilio et autres

Massive early-type (B/A) stars and ultracool dwarfs (UCDs) represent two distinct regimes in which ordered, large-scale magnetospheres are observed. In rapidly rotating massive stars, incoherent radio emission is explained by the centrifugal breakout (CBO) mechanism: plasma confined within the rigidly rotating magnetosphere …

Coherent and Incoherent Emission from the Ordered Magnetospheres of Low-Mass Stars, UCDs, and Massive Stars

F. Cavallaro, P. Leto, Barnali Das, Corrado Trigilio et autres

Massive early-type (B/A) stars and ultracool dwarfs (UCDs) represent two distinct regimes in which ordered, large-scale magnetospheres are observed. In rapidly rotating massive stars, incoherent radio emission is explained by the centrifugal breakout (CBO) mechanism: plasma confined within the rigidly rotating magnetosphere …

it, in, au, nl, sk, us, cl (code pays fourni par la source)

Jets and Outflows in Young Stellar Objects with the SKAO

G. Sabatini, Gemma Busquet, Carlos Carrasco-González, Adriana Rodríguez-Kamenetzky et autres

Jets and outflows are ubiquitous phenomena associated with the formation of young stellar objects (YSOs). They play a crucial role in removing angular momentum from the accreting system and in regulating star-formation efficiency. Theoretical studies and observations with ALMA and VLA have …

Jets and Outflows in Young Stellar Objects with the SKAO

G. Sabatini, Gemma Busquet, Carlos Carrasco-González, Adriana Rodríguez-Kamenetzky et autres

Jets and outflows are ubiquitous phenomena associated with the formation of young stellar objects (YSOs). They play a crucial role in removing angular momentum from the accreting system and in regulating star-formation efficiency. Theoretical studies and observations with ALMA and VLA have …

MeerKAT discovery of 164 compact radio rings towards the Galactic plane

Cristóbal Bordiú, F. Bufano, G. Umana, J. R. Rizzo et autres

ABSTRACT We report the discovery of 164 compact (radius < 1 arcmin) radio rings using MeerKAT 1.3 GHz data from the SARAO (South African Radio Astronomy Observatory) MeerKAT Galactic Plane Survey ($l=2^{\circ } \!-\! 60^{\circ }, 252^{\circ } \!-\! 358^{\circ }$, $|b|\le …

it, es, au, cl, Afrique du Sud (code pays fourni par la source)

Broadband radio study of the supernova remnant Kes 73

S. Loru, A. Ingallinera, A. Pellizzoni, E. Egron et autres

Context. Strong shocks occurring in supernova remnants (SNRs), and their interaction with an often anisotropic surrounding medium, make SNRs ideal laboratories for studying the production and acceleration of cosmic rays (CRs). Due to their complex morphology and phenomenology, different CR populations are …