From many observations of galaxies, we can assume that the absolute…
Question Answered step-by-step From many observations of galaxies, we can assume that the absolute… Image transcription textSpectra of Fast Moving Galaxies Velocity (In thousands km/sec) 0 5 10 15 20 25 30 35 40 45 50 55 60 MilkyWay Galaxy A Galaxy B Galaxy C Galaxy D Galaxy E Galaxy F Galaxy G Galaxy H Galaxy I Galaxy J Galaxy KGalaxy L Galaxy M Galaxy N Galaxy O Galaxy P Galaxy Q Velocity 5 10 15 20 25 30 35 40 45 50 … Show more… Show moreFrom many observations of galaxies, we can assume that the absolute magnitude of a galaxy is -22. For example, if we know the apparent magnitude of the galaxy is 12.0, we can find the distance to the galaxy. By calculating the distance modulus, we can consult the table we used in previous labs and find that the distance to this galaxy would be 63,095,000 parsecs (63 Mpc) or over 200,000,000 light-years (200 Mly)! Now you can see how we get both the velocity and distance for each galaxy. Here are the spectra of 18 galaxies, including our Milky Way. Since we reside within our galaxy, the Milky Way will serve as our lab spectrum. Using the velocity numbers at the top, determine the recession velocity of each galaxy by comparing its spectrum to the Milky Way’s spectrum. Record these velocities in the table. Use the given apparent magnitude to find the distance modulus and the distance to the galaxy in light-years. Round the distance to three significant digits. Galaxymm – MDistance (millions of light-years)Velocity(thousands of km/s)A14.95 B13.44 C16.71 D15.32 E16.94 F16.16 G14.66 H14.83 I16.71 J16.59 K14.81 L16.16 M16.94 N15.21 O16.00 P16.59 Q14.95 Science Astronomy AST 102 Share QuestionEmailCopy link Comments (0)


