Teaching Responsibility

LJMU Schools involved in Delivery:

Astrophysics Research Institute

Learning Methods

Online

Module Offerings

7013ASTPHY-SEP-CTY

Aims

Students should conclude this module with an in-depth understanding of the fundamental concepts underlying observational astrophysics. They should be capable of performing detailed procedures of research in observational astrophysics: astronomical data reduction, data analysis, error inference, interpretation of results and write up of a literature review.

Learning Outcomes

1.
Demonstrate an in-depth knowledge of fundamental concepts of observational astrophysics (e.g., radiometry, statistics and error analysis, telescopes, detectors)
2.
Discuss and demonstrate the techniques involved in research in observational astrophysics (imaging, photometry, spectroscopy, adaptive optics, radio and sub mm astronomy)
3.
Conduct a literature review and describe results and conclusions in a scientific report.

Module Content

Outline Syllabus:1 Astronomical units 2 Fundamentals of radiometry: Intensity, Flux, Luminosity; Blackbody radiation; Wien and Stefan-Boltzman Laws; Wien and Rayleigh-Jeans approximations; Radiative transfer; Magnitudes; Earth’s atmosphere 3. Basic statistics and error analysis of astronomical data: Measurement, precision, accuracy; Errors; Probability distributions (binomial, Poisson, Gaussian) 4. Telescopes: Basic optics and definitions; diffraction, Fourier transforms (definition, convolution, resolution theorem, sampling, aliasing); Aberrations; Telescope designs and mounts 5. Detectors: Important properties; Infrared detectors and arrays; CCDs; Digitization; Noise; the Orrey Equation 6. Imaging: Optical and infrared imagers; Imaging techniques: dithering, drizzling; CCD image reduction (bias, flat field, fringing) 7. Photometry: Aperture photometry; PSF photometry; Photometric systems; Photometric calibration 8. Spectroscopy: Principles of spectroscopy; Spectrographs; Resolving power; Long slit, Echelle, MOS, fibre-fed spectroscopy; spectroscopic data reduction 9. Adaptive Optics; Important concepts; Fried model, isoplanatic angle, Strehl ratio; Wavefront sensors; Basic layout of AO systems; NGS, LGS, MCAO 10. Submm, Radio, Interferometry; Radio telescopes; Submm and radio detectors: bolometers, polarimetry, antennas, superheterodyne receivers; Two aperture interferometer; Optical and radio interferometers; Aperture synthesis
Module Overview:
This module aims to develop your in-depth understanding of the fundamental concepts underlying observational astrophysics. It enables you to perform detailed procedures of research in observational astrophysics: astronomical data reduction, data analysis, error inference, interpretation of results and the write up of scientific reports in journal format.
Additional Information:There will be particular emphasis on developing independent learning skills and undertaking practical exercises. Students will be expected to make inferences using astrophysical literature. Module delivered by distance learning

Assessments

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Report

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