output
20052024
most citedBoundaries of the Peruvian Oxygen Minimum Zone shaped by coherent mesoscale dynamics

103 citations

17 papers

astro-ph.HE2024

Supernovae photometry at OAUNI

Miguel Espinoza, Antonio Pereyra

We analyse photometric data of nine supernovae (SNe) in filters V, R and I obtained during observational campaigns at the OAUNI site in 2016, 2017 and 2023. The calibrated magnitud…

physics.hist-ph2021★ 7 cited

The River and the Sky: Astronomy and Topography in Caral Society, America's First Urban Centers

A. César González-García, Aldemar Crispín, Ruth Shady Solís +3

America's first urban centres were allegedly located at the Supe Valley sites in Peru. After investigating the location and the orientation of the main built structures, we show th…

astro-ph.SR2021★ 3 cited

A Three-Dimensional Velocity of an Erupting Prominence Prior to a Coronal Mass Ejection

Maria V. Gutierrez, Kenichi Otsuji, Ayumi Asai +10

We present a detailed three-dimensional (3D) view of a prominence eruption, coronal loop expansion, and coronal mass ejections (CMEs) associated with an M4.4 flare that occurred on…

astro-ph.IM2020

Seeing measurements at OAUNI on 2016 and 2017 campaigns

A. Pereyra, J. Tello, M. Zevallos

We present seeing measurements at OAUNI site gathered on 2016 and 2017 campaigns using V and R broadband filters. In order to quantify the seeing we used the full-width-at-half-max…

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.IM2017

Characterizing a CCD detector for astronomical purposes: OAUNI Project

Antonio Pereyra, Maria I. Zevallos, Jose Ricra +1

This work verifies the instrumental characteristics of the CCD detector which is part of the UNI astronomical observatory. We measured the linearity of the CCD detector of the SBIG…