PPT-Large bolometer arrays on radio telescopes.

Simon Dicker MUSTANG MUSTANG 64 absorber coupled TES bolometers 45 field of view Cold reimaging optics Bare pixels 07 flambda Time Domain multiplexed readout 300mK cryogenics running off a PT405. Benford Christine A Allen Alexander S Kutyrev S Harvey Moseley Richard A Shafer NASA Goddard Space Flight Center Code 685 Greenbelt MD 20771 James A Chervenak Erich N Grossman Kent D Irwin John M Martinis Carl D Reintsema NIST Boulder MS 81409 Bou Telescopes. Key Concepts. What are the regions of the electromagnetic spectrum?. What are telescopes and how do they work?. Where are most large telescopes located?. Telescopes - Key Terms. Telescope. Telescopes were first invented around the year 1600. . Galileo . Galilei was an early astronomer who first used telescopes to view objects in our solar system. . He . made many important discoveries including: the moon was covered in mountains and Jupiter had 4 large moons.. 3: Telescopes. Images can be formed through reflection or refraction.. Reflecting mirror. 3.1 Optical Telescopes. Image formation. Modern telescopes are all reflectors:. Light traveling through lens is refracted differently depending on wavelength.. Optical Telescopes. Ground based and on satellites. Observations are recorded using a camera instead of the human eye most times. . This is so we can separate colors into light and using times to study changes over time.. rd. workshop on . . . Large Mm/. Submm. Telescopes . . . in the ALMA Era. March 10, 09:00 – 18:10. March 11, 09:00 – 17:40. COSMOS Lodge. Conference Room. Background of the workshop. So, if you are not sure, do your best to guess.. Please bring pencil(s) so that you can fill out. the scantrons.. No other accessories (calculators, cell phones, …) are allowed.. Important: Anything in the posted slides that I did not cover in class could be on the exam.. Types of Telescopes. A telescope collects light over a large area and focuses it in a . small area where it can be viewed with an eye or a camera. This can be done in 2 ways:. Refracting Telescopes. Agenda. Turn in Displacement Lab work. Turn in Permission slips. Notes on . Studying Space & . Exploring . Space packet. Studying space from Earth. Tele. = distance. Scopos. = to watch. Light and radiation (energy in the form of waves that travel through empty space). Big. . Glass. Giant Magellan Telescope (GMT). Las . Campanas. , Chile. First Light 2024. Large Binocular Telescope (LBTO). Mt Graham, AZ, 2007. Large Synoptic Survey Telescope (LSST), Cerro . Pachon. How astronomers study space. Electromagnetic Radiation (EMR). Light can travel through empty space. All EMR travels at the speed of light. . 3 x 10. 8. m/sec. Astronomers study different types of EMR. Why . do we need telescopes?. Humans can only see 6000 stars at night and cannot resolve (discern) the detail of objects in the sky if they are too close together. . Humans also cannot see anything but visible light. . Surface accuracy not so important, so easy to make large one.. angular resolution . . . wavelength. mirror diameter. D larger than optical case, but wavelength . much. larger (cm's to m's), e.g. for wavelength = 1 cm, diameter = 100 m, resolution = 20".. SPECTROSCOPY. Uses visible wavelength split into colors. Doppler shift. Wavelengths change when object is moving. Red/ . Blue. Shift. RECEDING (moving away) objects show a INCREASE in WAVELENGTH- red shift.