Introduction ASTR 3010 Lecture 1 Chapter 4

Course Homepage Course announcements will be made through this page. Occasionally, some relevant lecture notes will be provided as PDF files from this site. Course announcements will be made through this page. Occasionally, some relevant lecture notes will be provided as PDF files from this site. Three exams (two in-class exams and a final). Three exams (two in-class exams and a final). Some homework and extra credit works ( submission). Some homework and extra credit works ( submission). Accounts were created for you on a computer server Accounts were created for you on a computer server o server name : cosmos.physast.uga.edu o userid = UGA myid o passwd = “astr3010”  reset your passwd after your 1 st login  at the command prompt, type “passwd”

Course Layout

Changes in Observational Astronomy Until early 60s: Selected few elites have exclusive accesses to largest telescopes (e.g., Palomar 5m telescope by Caltech, Cornell, etc.) Until early 60s: Selected few elites have exclusive accesses to largest telescopes (e.g., Palomar 5m telescope by Caltech, Cornell, etc.) “National Observatory” : Kitt Peak National Observatory, Cerro Toloro InterAmerican Observatory, Gemini (international), VLT, etc… “National Observatory” : Kitt Peak National Observatory, Cerro Toloro InterAmerican Observatory, Gemini (international), VLT, etc…  any astronomers with a brilliant idea can carry out a project. All-sky surveys and science archives : data obtained from publically funded programs need to be shared! All-sky surveys and science archives : data obtained from publically funded programs need to be shared! o Hubble Space Telescope o Data archives for ROSAT (X-ray), IRAS (IR), Spitzer, GALEX, ISO, AKARI, WISE, Gemini, VLT, Keck, … o Hard to find relevant information  Need for a better tool  Virtual Observatory No more lame excuse: “I do not have an access to large telescopes…” No more lame excuse: “I do not have an access to large telescopes…”

Ground-based telescopes Why larger telescopes?

Space Telescopes James Webb Space Telescope James Webb Space Telescope Launch ~2018 Launch ~2018 post HST post HST 6.5m primary mirror 6.5m primary mirror mid-IR telescope mid-IR telescope Why space telescopes?

Upcoming Telescopes NameSizeLocationComments GMT25.4mChile2019 LSST8.4mChilesurvey telescope TMT30mHawaii E-ELT40m?European Pan-STARRS4 x 1.8mHawaiiSurvey Why large area surveys?

Python!! Importance of a good programming skill! Essential skill for a survival. Make sure that you will be able to run “python” code. o If you are using Mac, you’re already set. o If you are using linux, even better! o If you are using a Windows OS  dual-booting (Win+Linux)  live linux CD  Virtualization (VMWare, VirtualBox, etc.) o Python  python core  graphing tool (matplotlib)  science tools (scipy and numpy) o Google is your good manual for the above tasks.

Python Tutorials Real basics : o Good introductory book: “Python for Dummies” “Python for Dummies”“Python for Dummies” o o Little advanced :

In summary… Important Concepts Importance of a programming skill Needs for larger telescopes Needs for space telescope Needs for larger surveys Important Terms Python Chapter/sections covered in this lecture : N/A