Title
Sunspot characteristics of active regions NOAA 2268 and NOAA 2305
Date Issued
21 December 2018
Access level
open access
Resource Type
conference paper
Publisher(s)
Institute of Physics Publishing
Abstract
In this paper we present a study of two solar active regions NOAA 2268 and NOAA 2305 observed on January 28 and 29, and also on March 24 and 25 of 2015, respectively. Such active regions produced multiple solar flares including M-class flares as classified in the soft X-ray scale using GOES observation. We mainly use sunspot sketches obtained with a 15 cm diameter Takahashi telescope located at Universidad Nacional San Luis Gonzaga de Ica, Peru. The active regions were characterized on the basis of the sunspots number and the magnetic configuration. We also derived the physical speed of the spots under study, resulting 1.69 and 1.76 km s - for the period of January and March, respectively. In addition, considering the calculated speeds we estimated the rotation period of the Sun for the dates mentioned above, which result in 28.9 days for January and 27.4 days for March. The present study is complemented with data taken by the Helioseismic and Magnetic Imager (HMI) instrument onboard the Solar Dynamics Observatory (SDO), which provides high resolution solar images in the continuum at 6173 Å as well as magnetograms.
Volume
1143
Issue
1
Language
English
OCDE Knowledge area
Ingeniería del Petróleo, (combustibles, aceites), Energía, Combustibles Física de partículas, Campos de la Física Ingeniería eléctrica, Ingeniería electrónica
Scopus EID
2-s2.0-85059476522
Source
Journal of Physics: Conference Series
ISSN of the container
17426588
Conference
Volume 1143, Issue 121 December 2018 Article number 012007 16th Meeting of Physics Lima 2 August 2017 through 4 August 2017
Sources of information: Directorio de Producción Científica Scopus