Kinematics of Arp 270: gas flows, nuclear activity
... might well expect distinct star formation regimes within them. We have initiated a programme of kinematic observations of interacting galaxy pairs analysing the Hα emission line, using an instrument which gives unequalled angular and velocity resolution per unit observation time. These observations, ...
... might well expect distinct star formation regimes within them. We have initiated a programme of kinematic observations of interacting galaxy pairs analysing the Hα emission line, using an instrument which gives unequalled angular and velocity resolution per unit observation time. These observations, ...
Fast Optical Transients - Harvard-Smithsonian Center for Astrophysics
... For deep deposits, there will be a “dark period” between into two fallen components. Thislevel should representative only Prior to this maximum, the evolution of the literature ...
... For deep deposits, there will be a “dark period” between into two fallen components. Thislevel should representative only Prior to this maximum, the evolution of the literature ...
Mark Scheme (Results) Summer 2014
... correct use of the terms galaxy/star, frequency, wavelength spelling, punctuation and grammar are used with some accuracy a detailed explanation correctly interpreting the (apparent) drop in frequency / increase in wavelength e.g. light from (most) galaxies is shifted towards the red end of the ...
... correct use of the terms galaxy/star, frequency, wavelength spelling, punctuation and grammar are used with some accuracy a detailed explanation correctly interpreting the (apparent) drop in frequency / increase in wavelength e.g. light from (most) galaxies is shifted towards the red end of the ...
Light source used for AA
... gaseous cation acquire enough kinetic energy to dislodge some of the metal atoms from the cathode surface and produce an atomic cloud in a process called sputtering. A portion of the sputtered metal atom are in excited states and thus emit their characteristic radiation as they return to the ground ...
... gaseous cation acquire enough kinetic energy to dislodge some of the metal atoms from the cathode surface and produce an atomic cloud in a process called sputtering. A portion of the sputtered metal atom are in excited states and thus emit their characteristic radiation as they return to the ground ...
Winds from clusters with non-uniform stellar distribution
... massive stars first identified in NGC 1705 by Melnick et al. (1985) and in NGC 1569 by Arp & Sandage (1985). Recently, they have been observed in a wide range of starforming galaxies, such as merging systems (NGC 4038/4039), dwarf galaxies, classical starbursts, as well as in our galaxy amongst many ...
... massive stars first identified in NGC 1705 by Melnick et al. (1985) and in NGC 1569 by Arp & Sandage (1985). Recently, they have been observed in a wide range of starforming galaxies, such as merging systems (NGC 4038/4039), dwarf galaxies, classical starbursts, as well as in our galaxy amongst many ...
ON STARS, THEIR EVOLUTION AND THEIR STABILITY
... The paradox posed by Eddington was reformulated in clearer physical terms by R. H. Fowler.4 His formulation was the following: The stellar material, in the white-dwarf state, will have radiated so much energy that it has less energy than the same matter in normal atoms expanded at the absolute zero ...
... The paradox posed by Eddington was reformulated in clearer physical terms by R. H. Fowler.4 His formulation was the following: The stellar material, in the white-dwarf state, will have radiated so much energy that it has less energy than the same matter in normal atoms expanded at the absolute zero ...
WASP-42 b and WASP-49 b: two new transiting sub
... were obtained over 10 min using an r Gunn filter. We find the brightness ratio between the target and the contaminant to be 1 : 0.00343 ± (5 × 10−5 ), and, as its impact on the observed transit depth is much smaller (4×10−5) than the 1-σ-error quoted in Table 3, we neglect it in the analysis presen ...
... were obtained over 10 min using an r Gunn filter. We find the brightness ratio between the target and the contaminant to be 1 : 0.00343 ± (5 × 10−5 ), and, as its impact on the observed transit depth is much smaller (4×10−5) than the 1-σ-error quoted in Table 3, we neglect it in the analysis presen ...
Stellar Evolution 1
... Infrared light reveals protostar and jets embedded within a dark star-forming cloud ...
... Infrared light reveals protostar and jets embedded within a dark star-forming cloud ...
Carbon Stars - The OzSky Star Safari
... • Colors are more extreme deep red when the stars are dimmest and may be yellow‐orange when brightest. • Due to low surface gravity, about half of the total mass of carbon stars may be lost due to powerful stellar winds. • The material lost is a carbon‐rich material (similar to graphite) that fo ...
... • Colors are more extreme deep red when the stars are dimmest and may be yellow‐orange when brightest. • Due to low surface gravity, about half of the total mass of carbon stars may be lost due to powerful stellar winds. • The material lost is a carbon‐rich material (similar to graphite) that fo ...
ppt
... crosses are 472 AGN (318 in field of view); having z<0.018 (D<75Mpc); Solid line shows field of view (zenith angle < 60o); Color tells exposure; Dashed line is super galactic plane. Right: Correlation with nearby galaxies (color scale gives galaxy density) ...
... crosses are 472 AGN (318 in field of view); having z<0.018 (D<75Mpc); Solid line shows field of view (zenith angle < 60o); Color tells exposure; Dashed line is super galactic plane. Right: Correlation with nearby galaxies (color scale gives galaxy density) ...
Larger, high-res file, best for printing
... The Astronomical Society of the Pacific increases the understanding and appreciation of astronomy by engaging scientists, educators, enthusiasts and the public to advance science and science literacy. ...
... The Astronomical Society of the Pacific increases the understanding and appreciation of astronomy by engaging scientists, educators, enthusiasts and the public to advance science and science literacy. ...
Systematics-insensitive periodic signal search with K2
... method is, by definition, insensitive to these long-term systematics and is able to measure a period of ∼ 2 days. This example further demonstrates the fact that long-term systematic trends caused by slow pointing variations are often not removed by conventional detrending methods. The 59 day signal ...
... method is, by definition, insensitive to these long-term systematics and is able to measure a period of ∼ 2 days. This example further demonstrates the fact that long-term systematic trends caused by slow pointing variations are often not removed by conventional detrending methods. The 59 day signal ...
How Marius Was Right and Galileo Was Wrong Even Though
... unaided eye, suggesting that the stars extend indefinitely, even infinitely, into space, so the idea that Earth could be at rest with the stars rotating about it diurnally becomes absurd. ...
... unaided eye, suggesting that the stars extend indefinitely, even infinitely, into space, so the idea that Earth could be at rest with the stars rotating about it diurnally becomes absurd. ...
Final Exam, AST 203, Spring 2009 Monday, May 18, 9:00AM
... billion years – this is the age of the Earth (5 points). • Age of the Solar system is determined from radioactive dating of meteorites, which yields a very similar age as the Earth (5 points). • Age of the Sun is determined from modeling stellar evolution: knowing the mass and luminosity of the Sun ...
... billion years – this is the age of the Earth (5 points). • Age of the Solar system is determined from radioactive dating of meteorites, which yields a very similar age as the Earth (5 points). • Age of the Sun is determined from modeling stellar evolution: knowing the mass and luminosity of the Sun ...
The Use of Astronomical Filters
... doubly ionized oxygen wavelengths. This is the filter of choice for the Veil and does amazing things with other emission nebulae whose predominant emissions are in the doubly ionized oxygen range.Grins and Giggles: Having difficulty splitting Antares? Try the OIII on it. It turns the primary star in ...
... doubly ionized oxygen wavelengths. This is the filter of choice for the Veil and does amazing things with other emission nebulae whose predominant emissions are in the doubly ionized oxygen range.Grins and Giggles: Having difficulty splitting Antares? Try the OIII on it. It turns the primary star in ...
FINDING YOUR WAY AROUND THE CELESTIAL
... Go back to the Big Dipper diagram on page 1. Find the stars Merak and Dubhe in the cup portion of the asterism. Got ‘em? Good. Starting with Merak, draw a straight line through Dubhe and continue that straight line about 2 ½ fist-widths at arm’s length. You will run smack into a not particularly bri ...
... Go back to the Big Dipper diagram on page 1. Find the stars Merak and Dubhe in the cup portion of the asterism. Got ‘em? Good. Starting with Merak, draw a straight line through Dubhe and continue that straight line about 2 ½ fist-widths at arm’s length. You will run smack into a not particularly bri ...
29_LectureOutlineAto..
... The Quantum-Mechanical Hydrogen Atom (cont’d) 3. The plane of the electron’s orbit can be tilted, but only at certain discrete angles. Each allowed angle is characterized by a quantum number m, which must be one of the values ...
... The Quantum-Mechanical Hydrogen Atom (cont’d) 3. The plane of the electron’s orbit can be tilted, but only at certain discrete angles. Each allowed angle is characterized by a quantum number m, which must be one of the values ...
Introduction to X-ray Absorption Spectroscopy, Extended X
... distances, and an indication of ligand type and coordination number; combine with XANES and Bond Valence Sum Analysis for more accurate coordination number ...
... distances, and an indication of ligand type and coordination number; combine with XANES and Bond Valence Sum Analysis for more accurate coordination number ...
Fate of Stars
... • A heavier WD will have smaller radius • if Mass(WD) > 1.4 M(Sun) electrons can not resist gravity ! called Chandrasekhar limit and no WD has a mass greater than this • If WD can acquire mass from companion star and goes over this limit ! Supernova and (usually) a Neutron Star ...
... • A heavier WD will have smaller radius • if Mass(WD) > 1.4 M(Sun) electrons can not resist gravity ! called Chandrasekhar limit and no WD has a mass greater than this • If WD can acquire mass from companion star and goes over this limit ! Supernova and (usually) a Neutron Star ...
Volume 2 - Euresis Journal
... Astronomers are very adept at measuring velocities of celestial bodies using the Doppler effect that velocity induces on the light waves emitted by those bodies. Just as the pitch of the sound from an approaching train whistle is higher than that from a receding one, light from an approaching star g ...
... Astronomers are very adept at measuring velocities of celestial bodies using the Doppler effect that velocity induces on the light waves emitted by those bodies. Just as the pitch of the sound from an approaching train whistle is higher than that from a receding one, light from an approaching star g ...
Introduction Strategies
... children to suggest words, phrases, and ideas that are associated with space. Draw attention to the words that represent key ideas and topics, including: planets, stars, Moon, Sun, rockets, spacecraft, constellations, Martian, comet, asteroid, and meteor. 2. Talk about space topics that have recentl ...
... children to suggest words, phrases, and ideas that are associated with space. Draw attention to the words that represent key ideas and topics, including: planets, stars, Moon, Sun, rockets, spacecraft, constellations, Martian, comet, asteroid, and meteor. 2. Talk about space topics that have recentl ...
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.