The COMPLETE Survey of Star-Forming Regions: Why, How & When
... 2003-4-- SCUBA Observations: dust column density maps, finds all "cold" source ~20" resolution on all AV>2” 2002-4-- FCRAO/SEQUOIA 13CO and 13CO Observations: gas temperature, density and velocity information ~40" resolution on all AV>1 –Combined Thermal Emission data: dust spectral-energy distribut ...
... 2003-4-- SCUBA Observations: dust column density maps, finds all "cold" source ~20" resolution on all AV>2” 2002-4-- FCRAO/SEQUOIA 13CO and 13CO Observations: gas temperature, density and velocity information ~40" resolution on all AV>1 –Combined Thermal Emission data: dust spectral-energy distribut ...
ppt - ciera
... fields reveals no new 530 s pulsars, so there is a <0.5% chance of finding a magnetar in any field (Nechita, Gaensler, Muno, et al. in prep). • The pulsar is well within the cluster, with a <10% chance of being an unrelated X-ray source. ...
... fields reveals no new 530 s pulsars, so there is a <0.5% chance of finding a magnetar in any field (Nechita, Gaensler, Muno, et al. in prep). • The pulsar is well within the cluster, with a <10% chance of being an unrelated X-ray source. ...
- smdepo.org
... Transit of Venus lecture by Dr. Jay Pasachoff Telescope observations of the Sun, Moon, stars, & planets ...
... Transit of Venus lecture by Dr. Jay Pasachoff Telescope observations of the Sun, Moon, stars, & planets ...
Massive Stars in the Arches Cluster 12
... observed thermal radio flux from the nearby cloud, 3(1049 ) ionizing photons s−1 . Commensurately, it produces 107.8 L in total luminosity, providing the heating source for the nearby molecular cloud, Lcloud ≈ 107 L . These interactions between a cluster of hot stars and a wayward molecular cloud ...
... observed thermal radio flux from the nearby cloud, 3(1049 ) ionizing photons s−1 . Commensurately, it produces 107.8 L in total luminosity, providing the heating source for the nearby molecular cloud, Lcloud ≈ 107 L . These interactions between a cluster of hot stars and a wayward molecular cloud ...
Study Abroad and Exchange Students
... and ionisation; determination of stellar compositions. Distribution of stellar parameters; the HertzsprungRussell diagram. Stellar motions: Doppler effect, radial velocity, redshifts; proper motion. The Galaxy (11 lectures) Binary stars for masses, radii, luminosities; the main-sequence mass-luminos ...
... and ionisation; determination of stellar compositions. Distribution of stellar parameters; the HertzsprungRussell diagram. Stellar motions: Doppler effect, radial velocity, redshifts; proper motion. The Galaxy (11 lectures) Binary stars for masses, radii, luminosities; the main-sequence mass-luminos ...
Star and Planet Formation Star and Planet - A
... Today’s value of the Solar constant S = 1.94 cal cm-2 min-1 ...
... Today’s value of the Solar constant S = 1.94 cal cm-2 min-1 ...
Don`t Duck Look Up Educator`s Guide
... animals and his friends. He observes the blue sky and apparent motion of the Sun caused by the spinning Earth. Dudley becomes very wet during an afternoon thunderstorm. That evening he watches a sunset with his friends and they share ideas for pictures in the sky using stars. We observe the Moon and ...
... animals and his friends. He observes the blue sky and apparent motion of the Sun caused by the spinning Earth. Dudley becomes very wet during an afternoon thunderstorm. That evening he watches a sunset with his friends and they share ideas for pictures in the sky using stars. We observe the Moon and ...
遠くを見よう→赤外線へ
... Multi-band imaging: 6 filters (18 goal) Low resolution spectroscopy: R=5-200 ...
... Multi-band imaging: 6 filters (18 goal) Low resolution spectroscopy: R=5-200 ...
The Mason-Dixon Astronomer - Westminster Astronomical Society, Inc.
... I had just about given up on owning a nice barbell tektite. The ones I have seen on the Internet or at mineral shows just weren’t that good. However, at the Winter Star Party in Florida, there was a dealer that had some meteorites and tektites for sale. I looked over the “barbell” tektites and sever ...
... I had just about given up on owning a nice barbell tektite. The ones I have seen on the Internet or at mineral shows just weren’t that good. However, at the Winter Star Party in Florida, there was a dealer that had some meteorites and tektites for sale. I looked over the “barbell” tektites and sever ...
The influence of oxidation state on the electronegativity of tin
... In a 250 mL 2-neck flask equipped with a water cooled condenser, heating mantle and a magnetic stirrer is placed 75 mL of water. The condenser is attached to the central opening in the reflux position (vertical). While stirring vigorously, 10 grams of tin powder is added through the side arm of the ...
... In a 250 mL 2-neck flask equipped with a water cooled condenser, heating mantle and a magnetic stirrer is placed 75 mL of water. The condenser is attached to the central opening in the reflux position (vertical). While stirring vigorously, 10 grams of tin powder is added through the side arm of the ...
Ivelina Sotirova Major: Biochemistry Senior at CUNY Hunter College
... faster than predicted by assuming a uniform rate of expansion. Neither team expected such results, since in a universe which is slowing down, supernovae should appear brighter [3]. By comparing their almost identical data, both teams were reassured of the validity of their findings. Supernovae were ...
... faster than predicted by assuming a uniform rate of expansion. Neither team expected such results, since in a universe which is slowing down, supernovae should appear brighter [3]. By comparing their almost identical data, both teams were reassured of the validity of their findings. Supernovae were ...
Slide 1
... Red Giant phase with inert He-core and outer H-burning shell; star expands and cools, but is brighter Climbs up the RG branch until He-flash in the core Core expands and cools; H-burning decreases; outer layers contract; luminosity decreases but temperature increases; star moves LEFT on the H-R diag ...
... Red Giant phase with inert He-core and outer H-burning shell; star expands and cools, but is brighter Climbs up the RG branch until He-flash in the core Core expands and cools; H-burning decreases; outer layers contract; luminosity decreases but temperature increases; star moves LEFT on the H-R diag ...
6. Stellar Spectra
... Are the ionization levels for different elements observed in a given spectral type consistent with a ...
... Are the ionization levels for different elements observed in a given spectral type consistent with a ...
How Did We Wind Up in Such an Unlikely Universe?
... ago, in a very ordinary spiral galaxy. The material left over around the sun also contained these atoms so when some of it coalesced into planets, they contained these atoms. On the third planet out from the sun these atoms formed molecules that became complex as time went by. After about 1 billion ...
... ago, in a very ordinary spiral galaxy. The material left over around the sun also contained these atoms so when some of it coalesced into planets, they contained these atoms. On the third planet out from the sun these atoms formed molecules that became complex as time went by. After about 1 billion ...
Earth and Stars
... between two objects and read off the distance. Instead, a number of techniques have been developed that enable us to measure distances to stars without needing to leave the Solar System. One such method is trigonometric parallax, which depends on the apparent motion of nearby stars compared to more ...
... between two objects and read off the distance. Instead, a number of techniques have been developed that enable us to measure distances to stars without needing to leave the Solar System. One such method is trigonometric parallax, which depends on the apparent motion of nearby stars compared to more ...
Characterizing Extrasolar Planetary Systems
... A white paper by Mundy et al. will discuss observational methods to probe the early phases of star and planetary system formation. Here we discuss the interesting transition phase between a gas-rich proto-planetary disk and an older debris disk from which the gas has vanished. When does gas dissipat ...
... A white paper by Mundy et al. will discuss observational methods to probe the early phases of star and planetary system formation. Here we discuss the interesting transition phase between a gas-rich proto-planetary disk and an older debris disk from which the gas has vanished. When does gas dissipat ...
Stars in Their Youth
... is that they are converting hydrogen into helium in their cores. In the Chap. 1 we outlined the extraordinary conjecture by Eddington. But it took nearly twenty years to work out the details. The first breakthrough in solving the problem of how stars liberate energy came in 1938 when C. F. von Weizs ...
... is that they are converting hydrogen into helium in their cores. In the Chap. 1 we outlined the extraordinary conjecture by Eddington. But it took nearly twenty years to work out the details. The first breakthrough in solving the problem of how stars liberate energy came in 1938 when C. F. von Weizs ...
Key paper.
... with an integrated flux density of 279 6 7 mJy. Deconvolution from the beam assuming an elliptical gaussian source yields a major axis of 1:20 6 0:15 arcsec (FWHM), corresponding to a half-maximum size ,85 6 20 AU. Molecular-line emission from MWC480 is shown in Fig. 1b and appears more extended tha ...
... with an integrated flux density of 279 6 7 mJy. Deconvolution from the beam assuming an elliptical gaussian source yields a major axis of 1:20 6 0:15 arcsec (FWHM), corresponding to a half-maximum size ,85 6 20 AU. Molecular-line emission from MWC480 is shown in Fig. 1b and appears more extended tha ...
Astronomical spectroscopy
Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other hot celestial objects. Spectroscopy can be used to derive many properties of distant stars and galaxies, such as their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using Doppler shift measurements.