Gerardo Sierra

ORCID: 0009-0009-0524-5406
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About
Contact & Profiles
Research Areas
  • Adaptive optics and wavefront sensing
  • Astronomy and Astrophysical Research
  • Probabilistic and Robust Engineering Design
  • Oral health in cancer treatment
  • Dementia and Cognitive Impairment Research
  • Histiocytic Disorders and Treatments
  • Gamma-ray bursts and supernovae
  • Environmental and Cultural Studies in Latin America and Beyond
  • Viral-associated cancers and disorders
  • Eosinophilic Disorders and Syndromes
  • Astrophysics and Cosmic Phenomena
  • Neurological Disease Mechanisms and Treatments
  • Mycobacterium research and diagnosis
  • Lung Cancer Treatments and Mutations
  • Higher Education in Latin America
  • Geological and Tectonic Studies in Latin America
  • Concrete Corrosion and Durability
  • Advanced optical system design
  • Structural Health Monitoring Techniques

Universidad Nacional Autónoma de México
1998-2023

The Reionization and Transients InfraRed camera (RATIR) is a simultaneous optical/NIR multi-band imaging which 100% time-dedicated to the followup of Gamma-ray Bursts. mounted on 1.5-meter Johnson telescope Mexican Observatorio Astronomico Nacional Sierra San Pedro Martir in Baja California. With rapid slew capability autonomous interrupt capabilities, system will image GRBs 6 bands (i, r, Z, Y, J, H) within minutes receiving satellite position, detecting optically faint afterglows NIR...

10.1117/12.926471 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2012-09-24

We present the conceptual design of primary mirror support system 7.8 m Mexican Infrared-Optical Telescope. The consists 19 hexagonal off- axis parabolic Zerodur segments, which are carried by a tubular, lightweight and high stiffness cell structure. Each segment is actively supported pneumatic actuators, that cover whole back area provide uniform force distribution. array actuators will be able to correct for order aberrations. these contains hydraulic damping stiff coupling tubular sustain...

10.1117/12.319299 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 1998-08-25

We present the results of a modification performed in optical system 62 cm telescope (f/14.32) at observatory “Severo Diaz Galindo” Universidad de Guadalajara, Mexico. This consists change distance between the primary and secondary mirrors from 1020 to 1135 mm. With this, image plane 5200 mm 600 mm, measured vertex mirror, is obtained. The latter allow get first astronomical images of The Telescope. was necessary because alignment errors, such as between and secondary original were...

10.1117/12.926509 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2012-09-17

The structure of the spectrograph ESOPO is stiff mount that will maintain fixed all optics elements, electronics and mechanical subsystems. a project "Instituto de Astronomia la Universidad Nacional Autonoma Mexico" (IAUNAM) to upgrade its 2.1m telescope as competitive facility for next decade. scientific purpose obtain modern high efficient intermediate-low dispersion optimized 3500 - 9000 Å spectral interval with resolution 500 ≤ R 5000. It be used at cassegrain f/7.5 focus 2.1 m general...

10.1117/12.789683 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2008-07-01
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