X-rays - Astronomy at Swarthmore College
... significantly augmented by absorption of photons in spectral lines - atoms act like a resonance chamber for electrons: a bound electron can be ‘driven’ much more efficiently by light than a free one (i.e. it has a much larger cross section), but it can only be driven by light with a very specific ...
... significantly augmented by absorption of photons in spectral lines - atoms act like a resonance chamber for electrons: a bound electron can be ‘driven’ much more efficiently by light than a free one (i.e. it has a much larger cross section), but it can only be driven by light with a very specific ...
Current status of Subaru Telescope
... • Good idea. We will study how we can update the page without major impact to our work load – A webpage with accurate assessments about overhead times • The next generation preparation tool might be able to take care of – Noise on NsOpt slit viewer camera is higher than the other cameras • We are aw ...
... • Good idea. We will study how we can update the page without major impact to our work load – A webpage with accurate assessments about overhead times • The next generation preparation tool might be able to take care of – Noise on NsOpt slit viewer camera is higher than the other cameras • We are aw ...
Physics 2
... Chapter 17 – Wave Optics Chapter 18 – Ray Optics Chapter 19 – Optical Instruments Text College Physics, by Randy Knight, Brian Jones, and Stuart Field, Pearson/Addison Wesley, 1st edition, 2007. Student Learning Objectives Understand the principles of the wave and ray models of light Understand ...
... Chapter 17 – Wave Optics Chapter 18 – Ray Optics Chapter 19 – Optical Instruments Text College Physics, by Randy Knight, Brian Jones, and Stuart Field, Pearson/Addison Wesley, 1st edition, 2007. Student Learning Objectives Understand the principles of the wave and ray models of light Understand ...
Chapter5-Questions
... 3) hot stars and intergalactic gas. 4) neutron stars. 5) cool stars and star-forming regions. ...
... 3) hot stars and intergalactic gas. 4) neutron stars. 5) cool stars and star-forming regions. ...
Name - MIT
... 6) Which of the following objects has the most kinetic energy? A) A 100 kg mass moving at 1 km/s. B) A 20 kg mass moving at 2 km/s. C) A 2 kg mass moving at 5 km/s. D) A 10 kg mass moving at 4 km/s. E) A 5 kg mass moving at 2 km/s. 7) The Homestake Gold Mine experiment was designed to detect neutrin ...
... 6) Which of the following objects has the most kinetic energy? A) A 100 kg mass moving at 1 km/s. B) A 20 kg mass moving at 2 km/s. C) A 2 kg mass moving at 5 km/s. D) A 10 kg mass moving at 4 km/s. E) A 5 kg mass moving at 2 km/s. 7) The Homestake Gold Mine experiment was designed to detect neutrin ...
Chapter6-7
... passes through a cool, low-density gas, the result will be an absorption spectrum. Light excites electrons in atoms to higher energy states ...
... passes through a cool, low-density gas, the result will be an absorption spectrum. Light excites electrons in atoms to higher energy states ...
Sodium D-line Splitting
... (e+b) is called the grating element and N (= 1/ (e+b)) is the number of slits per unit length, which could typically be 300 to 12000 lines per inch. For a large number of slits, the diffraction pattern consists of extremely sharp (practically narrow lines) principal ...
... (e+b) is called the grating element and N (= 1/ (e+b)) is the number of slits per unit length, which could typically be 300 to 12000 lines per inch. For a large number of slits, the diffraction pattern consists of extremely sharp (practically narrow lines) principal ...
Program_files/40 Years of Microquasarsembed
... • Term first used by Martin Elvis 1984 “Microquasars and the Xray Background” (Weak AGN) • First used in the context of Xray binaries: Geldzahler, Fomalont and Cohen 1984, “Sco X-1 The Microquasar” • Now thought to be unrelated ...
... • Term first used by Martin Elvis 1984 “Microquasars and the Xray Background” (Weak AGN) • First used in the context of Xray binaries: Geldzahler, Fomalont and Cohen 1984, “Sco X-1 The Microquasar” • Now thought to be unrelated ...
What is Ocean Color Data? - USF College of Marine Science
... twenty billion years), it has cooled all the way to just three degrees above zero. It is this "three degrees" that we measure as the microwave background. (Remember that temperature, energy and EM wavelength are related). Infrared observatories Currently in orbit is the biggest infrared observatory ...
... twenty billion years), it has cooled all the way to just three degrees above zero. It is this "three degrees" that we measure as the microwave background. (Remember that temperature, energy and EM wavelength are related). Infrared observatories Currently in orbit is the biggest infrared observatory ...
Choosing a Telescope - St. Petersburg Astronomy Club
... Magnification is not the most important consideration when choosing a telescope. Telescopes advertised on the basis of high magnification (400X to 575X power, or more) are a sure sign of inferior quality. Excessive magnification blurs the already blurry image, mostly by amplifying the effects of ai ...
... Magnification is not the most important consideration when choosing a telescope. Telescopes advertised on the basis of high magnification (400X to 575X power, or more) are a sure sign of inferior quality. Excessive magnification blurs the already blurry image, mostly by amplifying the effects of ai ...
Slide 1
... The telescope mount design is currently in development at Vertex-RSI in collaboration with the DCT Project Team. The mount is an AltAz gimbal, based on designs developed for the SOAR and VISTA telescopes. The mount will support instruments at both Prime and Cassegrain focal positions, through attach ...
... The telescope mount design is currently in development at Vertex-RSI in collaboration with the DCT Project Team. The mount is an AltAz gimbal, based on designs developed for the SOAR and VISTA telescopes. The mount will support instruments at both Prime and Cassegrain focal positions, through attach ...
Light-gathering power
... c. Photometry can be done with the CCD images. d. The CCD images are easier to manipulate. *e. All of the above. ...
... c. Photometry can be done with the CCD images. d. The CCD images are easier to manipulate. *e. All of the above. ...
The Milky Way
... c. Photometry can be done with the CCD images. d. The CCD images are easier to manipulate. e. All of the above. ...
... c. Photometry can be done with the CCD images. d. The CCD images are easier to manipulate. e. All of the above. ...
$doc.title
... • A camera “takes a picture” by using a lens to form a real, inverted image on a light-sensitive detector in a light-tight box. • We can model a combination lens as a single lens with an effective focal length (usually called simply “the focal length”) • A zoom lens changes the effective focal le ...
... • A camera “takes a picture” by using a lens to form a real, inverted image on a light-sensitive detector in a light-tight box. • We can model a combination lens as a single lens with an effective focal length (usually called simply “the focal length”) • A zoom lens changes the effective focal le ...
Adaptive Optics
... figure (shape) that is opposite of the atmospheric distortion. When the light bounces off the Deformable Mirror it is “straightened”. ...
... figure (shape) that is opposite of the atmospheric distortion. When the light bounces off the Deformable Mirror it is “straightened”. ...
Seeing stars in a big way
... segmented mirrors, like those on the 10metre Keck telescopes on Mauna Kea in Hawaii. The other would make use of seven separate mirrors, each 8.4 metres in diameter, on a single mount. This competition is eerily reminiscent of the shoot-out in the mid-1980s, described by McCray, between two approach ...
... segmented mirrors, like those on the 10metre Keck telescopes on Mauna Kea in Hawaii. The other would make use of seven separate mirrors, each 8.4 metres in diameter, on a single mount. This competition is eerily reminiscent of the shoot-out in the mid-1980s, described by McCray, between two approach ...
Mon Aug 5, 2013 QUASAR DISCOVERY Quasars were discovered
... What’s the most distant star you can see? In 1987, there was a supernova in the Large Magellanic Cloud. It appeared as a 2nd magnitude star, (about the brightness of one of the stars of the Big Dipper,) and could be seen easily with the unaided eye. That star was about 160,000 light years away – tha ...
... What’s the most distant star you can see? In 1987, there was a supernova in the Large Magellanic Cloud. It appeared as a 2nd magnitude star, (about the brightness of one of the stars of the Big Dipper,) and could be seen easily with the unaided eye. That star was about 160,000 light years away – tha ...
I. What is an Exoplanet?
... Advantage: Avoids atmospheric effects, hence, provides precise measurements (see graph of light curves below). Orbit: Earth-like, around sun with a period of 372 days Launched on March 9, 2009. Duration of the mission is expected to be about 7 to 8 years Surveying our neighbourhood in Milky way ...
... Advantage: Avoids atmospheric effects, hence, provides precise measurements (see graph of light curves below). Orbit: Earth-like, around sun with a period of 372 days Launched on March 9, 2009. Duration of the mission is expected to be about 7 to 8 years Surveying our neighbourhood in Milky way ...
Observing
... • We’ll meet at the observatory even if it is cloudy – If the weather is really bad (a foot of snow or something) I’ll send an email changing the meeting place, but otherwise… ...
... • We’ll meet at the observatory even if it is cloudy – If the weather is really bad (a foot of snow or something) I’ll send an email changing the meeting place, but otherwise… ...
Using a distant X-ray source to detect small Transneptunian Objects
... Depending on the position of the Earth in its orbit over the 6 years of the observations, the angular speed of the Earth relative to the TNO is sometimes added and sometimes subtracted. What is the maximum blocking time for the signals which could be expected from a spherical TNO with a 100 m diamet ...
... Depending on the position of the Earth in its orbit over the 6 years of the observations, the angular speed of the Earth relative to the TNO is sometimes added and sometimes subtracted. What is the maximum blocking time for the signals which could be expected from a spherical TNO with a 100 m diamet ...
Acquisition, Tracking and Pointing control
... OS. The other bodies considered in the dynamic model are: l ...
... OS. The other bodies considered in the dynamic model are: l ...
Telescopes
... Besides collecting light, telescopes also allow us to discern objects as single large object or several small individuals – The ability of a telescope or instrument to discern fine details. Larger diameter telescopes have greater resolving power than smaller ones. • Resolving power is limited becaus ...
... Besides collecting light, telescopes also allow us to discern objects as single large object or several small individuals – The ability of a telescope or instrument to discern fine details. Larger diameter telescopes have greater resolving power than smaller ones. • Resolving power is limited becaus ...
XMM-Newton
The XMM-Newton, also known as the X-ray Multi-Mirror Mission and the High Throughput X-ray Spectroscopy Mission, is an orbiting X-ray observatory launched by ESA in December 1999 on an Ariane 5 rocket. It is named in honor of Sir Isaac Newton. The telescope was placed in a very eccentric 48 hour elliptical orbit at 40°; at its apogee it is nearly 114,000 kilometres (71,000 mi) from Earth, while the perigee is only 7,000 kilometres (4,300 mi).