Invitación Charla de Postgrado - Martes 12 de Octubre

martes 12 oct. 2021 13:00 → 14:00 America/Santiago

Estimados alumnos:

Están todos cordialmente invitados a una nueva Charla de Postgrado, la que se realizará el próximo martes 12 de Octubre a las 13:00 hrs. En esta ocasión se trata de una invitada externa, ex alumna de nuestro Departamento.

Relator: SURANGKHANA RUDKEE. "I a scientist at PANTER/ Max Planck Institute for extraterrestrial Physics working with X-ray Optics for Einstein Probe and Athena. I had two beautiful years doing my postdoc at the Center for Astrophysics | Harvard & Smithsonian since Nov. 2018. I work as an astronomical instrumentalist. My research interests include high resolution spectroscopy in UV, optical and infrared for searching and characterizing exoplanets and their atmospheres, extreme precise radial velocity measurements and Fabry Perot Interferometers. I developed a new Fabry Perot based instrument for oxygen searches in exoplanet atmospheres, with the G-CLEF team at Harvard. I received my B.Sc. in Physics and Material Science with a joint program in Geology from Chiang Mai University, Thailand. I obtained my M.Sc. in Astronomy and Space Science at the Korean Astronomy and Space Science Institute where I took part in the design of the IGRINS mirror mounts. I did my PhD in an astro-engineering program with Prof. Leonardo Vanzi at Pontificia Universidad Católica de Chile. Our team work focuses on the design and development of exoplanet hunters such as FIDEOS, TARdYS and PLATOSPEC.

Título: The next leap to characterize exoplanet atmosphere in the ELTs era.

Abstract: Up to date more than 4,000 known exoplanets have been detected. The characterization of their atmospheres is a natural step to learn more about their diversity especially from the atmospheres of rocky exoplanets. They can potentially host bio-signature gases, notably molecular oxygen (O2). When observed through transmission spectroscopy, it is possible that the star-planet configuration allows us to sample only low pressure layers, and therefore the absorption lines will be very narrow, and we will need extreme high resolution to fully resolve the lines. Higher resolution allows us to disentangle actual signals and telluric lines in our own atmosphere. Recent studies show that O2 is best observed from ground with upcoming Extremely Large Telescopes. The spectral resolutions of 300,000 - 400,000 are optimal to detect O2 in the atmosphere of an earth analog. However, typical high-resolution spectrographs have resolutions around 100,000. In order to increase detection capabilities, we have developed a Fabry Perot Interferometer for Oxygen Searches (FIOS), an interferometer array coupled to a high-resolution spectrograph. FIOS can achieve a spectral resolution of 500,000 at the O2A-band (760 nm). I will describe the instrument concept, a simulation of its sensitivity, and preliminary results from our lab prototype.

Los esperamos a las 13:00 hrs. Si quieres participar, favor inscríbete en el adjunto.

Unirse a la reunión Zoom: zoom.com/my/abusleme

Atentos saludos,

MATIAS NEGRETE