Assignment 1: Chapters 1 and 2 // Due 09/17 [1] Short answer questions (2 points for each lettered subheading): (a) What happens to the strength of the gravitational attraction between two masses if you reduce the distance between them by half? Gravitational Force: 𝐹=! #! ##$# What happens to the strength of the gravitational attraction […]
For example, a star which is magnitude 1 in the V filter, and magnitude 2 in the B filter, is fainter in the blue and so is a redder star. It has a B-V of 2-1=+1. So the larger the B-V value is, the more red it is, and the more negative it is, the […]
24 October 2020 11:52 AM Page 6 What is 2.5 log10(t) +CV for the G image you used for your Colour -Magnitude diagram? What is 2.5 log10(t)+CB for the B image you used for your Colour- Magnitude diagram?When you make your plot with Top Cat you should add these constants to your plotted values, e.g. […]
24 October 2020 11:52 AM Page 5 look something like the figure. Though this is a plot of our data, there are still some calibrations and corrections that have not yet been applied to the data, and can improve our data quality. Let’s look at some of these Photometric calibration of the data Look at […]
PROCEDURE Step 1 (a) Go to cas.sdss.org– this is the Sloan Digital Sky Survey’s public data portal. If you wish, take a look at the “About Astronomy” and “About Skyserver” pages under the Links menu to refresh your familiarity with this powerful online scientific tool. Then click on the “Navigate” page under the Data Access […]
