activity
19972020
most citedMultiwavelength Monitoring of the BL Lacertae Object PKS 2155-304 in May 1994. I. The Ground-Based Campaign

34 citations · 158 across the 17 of their papers we have counts for

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astro-ph.SR2020

OAUNI astronomical photometry: Stellar variability of FO Aqr on 2016 low state

Antonio Pereyra

This work reports a photometric monitoring of the intermediate polar cataclysmic variable star FO Aqr. This is part of the ongoing OAUNI stellar variability program. Around 1200 in…

astro-ph.SR2019

Short term period variable stars observed at OAUNI

Antonio Pereyra, Julio C. Tello

We present the first scientific results of the program on short term period variable stars observed using the OAUNI facility at the peruvian Andes. These results include good quali…

astro-ph.SR2013★ 2 cited

Magnetic field dispersion in the neighbourhood of Bok Globules

C. V. Rodrigues, V. de S. Magalhaes, J. W. Vilas-Boas +2

We performed an observational study of the relation between the interstellar magnetic field alignment and star formation in twenty (20) sky regions containing Bok Globules. The pre…

astro-ph.SR2009★ 12 cited

Halpha spectropolarimetry of the B[e] supergiant GG Carinae

A. Pereyra, F. X. de Araujo, A. M. Magalhaes +2

Aims. We study the geometry of the circumstellar environment of the B[e] supergiant star GG Car. Methods. We present observations acquired using the IAGPOL imaging polarimeter in c…

astro-ph.SR2009★ 22 cited

Near Infrared polarimetry of a sample of YSOs

A. Pereyra, J. M. Girart, A. M. Magalhaes +2

Our goal is to study the physical properties of the circumstellar environment of young stellar objetcs (YSOs). In particular, the determination of the scattering mechanism can help…