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Seminario DAS: "SCIROCCO & PAMPERO: Astrophysical models for spectro-interferometric studies"

Optical Long Baseline Interferometry (OLBIN)

Optical Long Baseline Interferometry (OLBIN)

Enlaces relacionados
Departamento de Astronomía

Fecha:

Jueves 19 de diciembre de 2019

Hora:

12:15 hrs.

Lugar:

Sala de Conferencias Federico Ristenpart (Camino El Observatorio 1515, Departamento de Astronomía, Edificio Central, piso 3, Las Condes, Santiago, Chile)

Speaker: Massinissa Hadjara
Departamento de Ingeniería Eléctrica, U. de Chile

Title: SCIROCCO & PAMPERO: Astrophysical models for spectro-interferometric studies

Abstract: Thanks to the Optical Long Baseline Interferometry (OLBIN) technique it is now possible to make observations with resolutions much better than 1 milli-arc-seconds. These new capabilities allow us to better constrain the stellar structures and their near environment such as polar jets, equatorial disks and flattened photospheres of rotating stars and mass-loss behaviour of evolved stars. Thus, the estimation of stellar fundamental parameters is letting us to explore in detail the mechanisms of mass-loss, pulsation and magnetism governing the variability and the evolution of stars without forgetting the protoplanetary disks also.
My talk is related to the presentation of two astrophysical models for spectro-interferometric studies: 1- SCIROCCO (for whom the name was inspired by the hot wind that comes from the Sahara, and which is very known to Mediterranean people in general and at north Africa, especially -the land of my ancestors-) and 2- PAMPERO (for whom the name was inspired by a cold wind that comes from Antarctica, and which is very well known at south of America -my new home-).
After a brief introduction of stellar interferometry, its history and main results, I will depict my both models for spectro-interferometric uses, namely: SCIROCCO (for Simulation Code of Interferometric-observations for ROtators and CirCumstellar Objects) which is dedicated to hot active stars studies, and PAMPERO (for Physical Approach of Molecular Photospheric Ejection in high-angular-Resolution for evolved-stars) which is dedicated to evolved stars studies. I will also show you their main results, discuss their potential and share with you my future projects that are expected to be done with both these models.

Rene A. Mendez
Seminar Coordinator
DAS/UChile - rmendez@uchile.cl

Organiza
Departamento de Astronomía, Cerro Calán
Contacto
Alejandro Leal Obreque
+562 29771154 |

Departamento de Astronomía

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