Astrophysics Pulse-to-pulse flux density modulation from pulsars at 8.35 GHz

Autor:	Maron, O, Serylak, M, Kijak, J, Krzeszowski, K, Mitra, D, Jessner, A
Přispěvatelé:	J. Kepler Institute of Astronomy, University of Zielona Góra, Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Unité Scientifique de la Station de Nançay (USN), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), National Centre for Radio Astrophysics [Pune] (NCRA), Tata Institute for Fundamental Research (TIFR), Max-Planck-Institut für Radioastronomie (MPIFR), rant DEC-2012/05/B/ST9/03924 of the Polish National Science Centre
Jazyk:	angličtina
Rok vydání:	2013
Předmět:	[PHYS]Physics [physics] pulsars: individual: B1133+16 [SDU]Sciences of the Universe [physics] Astrophysics::High Energy Astrophysical Phenomena pulsars: general Astrophysics::Instrumentation and Methods for Astrophysics [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Zdroj:	Astronomy and Astrophysics-A&A Astronomy and Astrophysics-A&A, EDP Sciences, 2013, 555, A28 (7 p.). ⟨10.1051/0004-6361/201220698⟩
ISSN:	0004-6361
DOI:	10.1051/0004-6361/201220698⟩
Popis:	International audience; Aims. We aim to investigate the flux density modulation from pulsars and the specific behaviour of the modulation index versus frequency. Methods. Several pulsars were observed with the Effelsberg radio telescope at 8.35 GHz. Their flux density time series were corrected for interstellar scintillation effects. Results. We present measurements of modulation indices for eight pulsars. We confirm the presence of a critical frequency at ∼1 GHz for these pulsars (including three new ones from this study). We derived intrinsic modulation indices for the resulting flux density time series. Our data analysis revealed strong single pulses detected from five pulsars.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::f5f1f3b0b20104b2d41748008c8cbbee https://hal-insu.archives-ouvertes.fr/insu-01253679/document Zobrazit plný text záznamu