10 - Research Facilities, Technology, and Exoplanet Imaging

Question 1

Binary stars

Answer 1

Two stars orbiting around each-other,

Enough gravitational pull to not collide,

Its a rare thing to happen,

Question 2

Extrasolar planet (or exoplanet)

Answer 2

planets beyond the solar system orbiting other stars rather the sun

Question 3

Direct Imaging

Answer 3

Effort to detect/study exoplanets from the light emitted

Question 4

Transit Detection

Answer 4

planet passing in front of a star (need a telescope)

Question 5

Galileo Telescope Replica

Answer 5

A long tube at the end of the eyepiece slides in and out

1.5 CM lens - refractor

Question 6

Clark-Miline Telescope CMT

Answer 6

-using mirrors attached to the camera
-keeping aligned with palarisis,
- Rotating almost like the earth does,

0.4 M lens - reflector

Question 7

Baker-nunn telescope

Answer 7

• looks for satalites,
  -looks of the whole sky, astroids, comets,
  -direct imaging - taking pics of the sky

0.5 m lense - reflector

Question 8

A.R cross ARCT telescope

Answer 8

• light comes in, bounces off the mirror mounted,
• has to be kept cold to avoid fogging

-the moon is way too bright to see,

-can see very far away, visual light spectrum,

1.8 m lens - reflector

Question 9

Rotheny Radio telescope RRT

Answer 9

Parbolic dish,

measures wavelenghts - radio
measure size of milkyway,
measure long red wave and hydrogen gas

3.3 m lense - reflector dish

Question 10

atom smashing machine, the equipment is massive in size, used to study the origins of sub-atomic particles

Answer 10

Large Hardon Collider (LHC)

Question 11

combines the observation through many telescopes in many countries to gather light from the same object at the same time

Answer 11

Event Horizon Telescope (EHT)

Question 12

the production of a multi-year build by thousands of scientists/engineers from many countries. It gathers light at resolutions never seen before to inform global astronomy research

Answer 12

James Webb Space Telescope (WEBB)

Question 13

refracting telescopes uses a lens to gather + focus light while the reflecting telescope…

Answer 13

…uses a mirror

Question 14

optical telescopes uses lenses and/or mirrors to gather light away from light pollution while…

Answer 14

…radio telescopes are away from EM noise and gather radio radiation from a spot in the sky

Question 15

telescope motion (from a clock drive) that matches star path as Earth rotates

Answer 15

Sidereal Tracking

Question 16

Who built telescopes for observation/science and found an imperfect cosmos (ex. moon with mountains)

Answer 16

Galileo Galilei

Question 17

The three binary star systems are…

Answer 17

1. Visual Binary System: both stars are visible
2. Spectroscopic Binary System: too close together so they look like a single point of light
3. Eclipsing Binary System: cross in front of each other

Question 18

graph of brightness vs time

Answer 18

light curve

Question 19

detecting spectrum shift, gravity tug, and radial velocity oscillation

Answer 19

doppler shift method

Question 20

most successful method, thousands of exoplanets found

Answer 20

transit method

Question 21

region around a star where temperature permits existence of liquid water

Answer 21

habitable zone

Question 22

what do binary stars orbit? (it’s an imaginary line connecting stars, closer to the more massive star)

Answer 22

centre of mass