Upgraded antennas for pulsar observations in the Argentine Institute of Radio astronomy

Context. The Argentine Institute of Radio astronomy (IAR) is equipped with two single-dish 30 m radio antennas capable of performing daily observations of pulsars and radio transients in the southern hemisphere at 1.4 GHz. Aims: We aim to introduce to the international community the upgrades perfor...

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Detalles Bibliográficos
Autores principales: Gancio, Guillermo Matías, Lousto, Carlos O., Combi, Luciano, Palacio, Santiago del, López Armengol, Federico Gastón, Combi, Jorge Ariel, García, Federico, Kornecki, Paula, Müller, Ana Laura, Gutiérrez, Eduardo Mario, Hauscarriaga, Fernando, Mancuso, Giulio Cesare
Formato: Articulo
Lenguaje:Español
Publicado: 2020
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/123692
Aporte de:
id I19-R120-10915-123692
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Astronomía
instrumentation: detectors
methods: observational
pulsars: general
telescopes
spellingShingle Astronomía
instrumentation: detectors
methods: observational
pulsars: general
telescopes
Gancio, Guillermo Matías
Lousto, Carlos O.
Combi, Luciano
Palacio, Santiago del
López Armengol, Federico Gastón
Combi, Jorge Ariel
García, Federico
Kornecki, Paula
Müller, Ana Laura
Gutiérrez, Eduardo Mario
Hauscarriaga, Fernando
Mancuso, Giulio Cesare
Upgraded antennas for pulsar observations in the Argentine Institute of Radio astronomy
topic_facet Astronomía
instrumentation: detectors
methods: observational
pulsars: general
telescopes
description Context. The Argentine Institute of Radio astronomy (IAR) is equipped with two single-dish 30 m radio antennas capable of performing daily observations of pulsars and radio transients in the southern hemisphere at 1.4 GHz. Aims: We aim to introduce to the international community the upgrades performed and to show that the IAR observatory has become suitable for investigations in numerous areas of pulsar radio astronomy, such as pulsar timing arrays, targeted searches of continuous gravitational waves sources, monitoring of magnetars and glitching pulsars, and studies of a short time scale interstellar scintillation. Methods: We refurbished the two antennas at IAR to achieve high-quality timing observations. We gathered more than 1000 h of observations with both antennas in order to study the timing precision and sensitivity they can achieve. Results: We introduce the new developments for both radio telescopes at IAR. We present daily observations of the millisecond pulsar J0437-4715 with timing precision better than 1 μs. We also present a follow-up of the reactivation of the magnetar XTE J1810-197 and the measurement and monitoring of the latest (Feb. 1, 2019) glitch of the Vela pulsar (J0835-4510). Conclusions: We show that IAR is capable of performing pulsar monitoring in the 1.4 GHz radio band for long periods of time with a daily cadence. This opens up the possibility of pursuing several goals in pulsar science, including coordinated multi-wavelength observations with other observatories. In particular, daily observations of the millisecond pulsar J0437-4715 would increase the sensitivity of pulsar timing arrays. We also show IAR's great potential for studying targets of opportunity and transient phenomena, such as magnetars, glitches, and fast-radio-burst sources.
format Articulo
Articulo
author Gancio, Guillermo Matías
Lousto, Carlos O.
Combi, Luciano
Palacio, Santiago del
López Armengol, Federico Gastón
Combi, Jorge Ariel
García, Federico
Kornecki, Paula
Müller, Ana Laura
Gutiérrez, Eduardo Mario
Hauscarriaga, Fernando
Mancuso, Giulio Cesare
author_facet Gancio, Guillermo Matías
Lousto, Carlos O.
Combi, Luciano
Palacio, Santiago del
López Armengol, Federico Gastón
Combi, Jorge Ariel
García, Federico
Kornecki, Paula
Müller, Ana Laura
Gutiérrez, Eduardo Mario
Hauscarriaga, Fernando
Mancuso, Giulio Cesare
author_sort Gancio, Guillermo Matías
title Upgraded antennas for pulsar observations in the Argentine Institute of Radio astronomy
title_short Upgraded antennas for pulsar observations in the Argentine Institute of Radio astronomy
title_full Upgraded antennas for pulsar observations in the Argentine Institute of Radio astronomy
title_fullStr Upgraded antennas for pulsar observations in the Argentine Institute of Radio astronomy
title_full_unstemmed Upgraded antennas for pulsar observations in the Argentine Institute of Radio astronomy
title_sort upgraded antennas for pulsar observations in the argentine institute of radio astronomy
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/123692
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