# MKEP5 Astronomical Techniques

**Core course for Master students**, listed on Moodle and LSF

**Course content (short summary):** Concepts, technologies, and physical principles of modern observational techniques, along with their scientific applications. Includes optical telescopes and detectors, imaging and spectroscopy, characterization of data, effect of the atmosphere, multi-wavelength and particle astronomy.

**Lecturer:** Priv.-Doz. Dr. Anna Pasquali

**Tutors: **Beatriz Bordadagua, Karin Kjellgren, Abhinna Samantaray, Yash Mohan Sharma

**Time and location:**

- Lectures: Tuesday and Thursday 9:15 - 11, Grösser Hörsaal (gHS), Philosophenweg 12
- Tutorials by Beatriz Bordadagua: Monday 9:15 - 11, ARI, SR1
- Tutorials by Karin Kjellgren: Tuesday 11:15 - 13, Philosophenweg 12, R056
- Tutorials by Abhinna Samantaray: Tuesday 11:15 - 13, Philosophenweg 12, R058
- Tutorials by Yash Mohan Sharma: Tuesday 11:15 - 13

**Lectures will start on Thursday April 16th 2024. Tutorials will begin on Monday/Tuesday April 29th/30th.**

Homework sheets become available every Tuesday on Moodle and have to be submitted by Tuesday of the following week on Moodle. We encourage solving and submitting the homework in groups; the maximum is 3 people.

**Prerequisites:** Knowledge of the introductory astronomy lectures (MVAstro0 or WPAstro). Basic knowledge on electromagnetic radiation.

Credit points: 8

**Literature:**

- P. Léna, "Observational Astrophysics", Springer
- F.R. Chromey, "To Measure the Sky", Cambridge University Press
- C.R. Kitchin, "Astrophysical Techniques", CRC Press

Additional recommendations for specific parts of the lecture:

- S.B. Howell, "Handbook of CCD Astronomy", Cambridge University Press
- I. Appenzeller, "Introduction to Astronomical Spectroscopy", Cambridge University Press
- D.J. Schroeder, "Astronomical Optics", Academic Press

**Exam: Tuesday, July 23rd, 9:00 - 11:00**

50% of homework points are required for participating in the exam.

**Course content and planned schedule:**

- 01 April 16th: Lecture organization; Coordinates and time
- 02 April 18th: Atmospheric extinction and airmass; Geometric optics: focal length and image scale
- 03 April 23rd: Optical aberrations and telescope design
- 04 April 25th: Instrumental diffraction and Airy-PSF
- 05 April 30th: First part of optical detectors and CCDs
- 06 May 2nd: Second part of optical detectors and CCDs
- 07 May 7th: The night sky; S/N calculation
- 08 May 14th: Spectroscopy 1: gratings-grisms-prims, basic mathematical relations
- 09 May 16th: Spectroscopy 2: scientific information at different wavelength and resolution: SED and population models, redshift, rotation/dispersion; IFUs
- 10 May 21st: Imaging data: flux, magnitudes, noise
- 11 May 23rd: Imaging data reduction, spectroscopic reduction
- 12 May 28th: Imaging data analysis: photometry; Spectroscopic data analysis: line centers, equivalent widths; Flux calibratios
- 13 June 4th: Atmospheric turbulence and seeing
- 14 June 6th: Active Optics, Adaptive Optics
- 15 June 11th: Observation and analysis of the Sun
- 16 June 13th: Web-based access of data and measurements; Observational tools
- 17 June 18th: Near-, mid-, and far-infrared Astronomy (detectors and instrumentation, science)
- 18 June 20th: Radio astronomy (detectors and instrumentation, science)
- 19 June 25th: Interferometry: concepts, optical/near-infrared, radio
- 20 June 27th: UV astronomy
- 21 July 2nd: X-ray astronomy: detectors and science
- 22 July 4th: Gamma-ray astronomy and particle astronomy
- 23 July 9th: Neutrino astronomy; Gravitational wave astronomy; Gravitational lensing; Observational cosmology
- 24 July 11th: Questions and answers
**JULY 23rd:****Exam: 9:00-11:00**