STUDENTS

David Concha
Regular master student.
Master in Astrophysics, Universidad de Valparaíso, Valparaíso, Chile.
Email: david.concha@postgrado.uv.cl

I’m currently working with prof. Catalina Arcos on the characterization of the disk and line-profile variability of the Be star pi Aqr. To do this I am learning how to use the 3d Monte Carlo radiative transfer code HDUST in order to obtain theoretical hydrogen Iines profiles to be compared with observations. Data used in this work are from the PUCHEROS and BESS database. Also this work is in the frame of an international collaboration with USP (FAPESP project)

Martin Solar
PhD. Student at Adam Mickiewicz University, Poland.
Master in Astrophysics (2021), Universidad de Valparaíso, Valparaíso, Chile.
Email: martin.solar@postgrado.uv.cl

During my master I worked with prof. Michel Curé, in the study of stellar rotations in massive stars applying de-convolution methods for non-spherical distributions in the unit sphere of observation. Our analysis was made by using apparent rotational velocities values taken from the literature, e.g., vizier. Also, I developed an automatic procedure that uses Fourier Transform to determine the projected rotational velocity measured in different lines for a large sample of spectra.

Abigali Rodríguez
Regular master student.
Master in Astrophysics, Universidad de Valparaíso, Valparaíso, Chile.
Email: abigali.rodriguez@postgrado.uv.cl

Currently I am working with Dr. Michel Curé in the study of viscous stellar winds in fast rotating stars. As an alternative, my main aim is to return to the physical bases that Araújo et al. 1995 considered in his paper, in order to complement the work developed by Curé in 2004.

Natalia Machuca
Regular master student.
Master in Astrophysics, Universidad de Valparaíso, Valparaíso, Chile.
Email: natalia.machuca@postgrado.uv.cl

I’m currently working on rewrite an IDL program called iacob-broad into Python language. Also, I’m studying the «SEI» method for a posterior implementation of hydwind code on it.

Josephin Chavez
Graduate
Licenciada en Física con M/astronomía (2021), Universidad de Valparaíso, Valparaíso, Chile.
Email: josephin.chavez@alumnos.uv.cl

Publication: See Publications

I’m currently working with prof. Catalina Arcos on detection of changes in the spectra of Be stars observed at different disk phases. During the last years, I learned how to carry out echelle spectroscopic observations and the corresponding data reduction, also, how to use stellar atmospheres models and contrast them with photometric and spectroscopic data determining equivalent widths and radial velocities using Gaussian/Voigt distributions.

Felipe Figueroa
Regular undergraduate student.
Licenciatura en Física con M/astronomía, Universidad de Valparaíso, Valparaíso, Chile.
Email: felipe.figueroat@alumnos.uv.cl

My work (leaded by prof. Michel Curé) is focuses in obtain mass-loss rates of massive stars by varying theoretical densities at the stellar surface using the Hydwind and AKD27 hydrodynamical codes. These solutions will be used as input in the Fastwind code in order to obtain synthetic spectra and to compare them with observations. As final result we expect to generate a grid of theoretical models describing the upper part of the HR Diagram.

Felipe Herrera
Regular undergraduate student.
Licenciatura en Física con M/astronomía, Universidad de Valparaíso, Valparaíso, Chile.
Email: felipe.herrerafi@alumnos.uv.cl

I just started to work with prof. Catalina Arcos. Currently, I’m using an automated program to obtain measurements on observed lines in optical spectra of a sample of Be stars.

Yanina López
Regular undergraduate student.
Licenciatura en Física con M/astronomía, Universidad de Valparaíso, Valparaíso, Chile.
Email: yanina.lopez@alumnos.uv.cl

I just started to work with prof. Catalina Arcos. Currently, I’m using an automated program to obtain measurements on observed lines in optical spectra of a sample of Be stars.