Hot Stars With Cool Companions
... companions, and have detected the spectral lines of the secondary in 4 previously single-lined spectroscopic binaries. Since the new detections require follow-up observations to confirm, we do not report them here. However, we list the companions to known single-lined binaries in Table 1. Since we o ...
... companions, and have detected the spectral lines of the secondary in 4 previously single-lined spectroscopic binaries. Since the new detections require follow-up observations to confirm, we do not report them here. However, we list the companions to known single-lined binaries in Table 1. Since we o ...
University Mohamed Khider- Biskra Faculty of letters and
... □ both blue and red stars What do you need for an eclipse to occur? □ the sun □ the moon and the sun □ Earth, the moon, and the sun □ Earth What kind of eclipse occurs when the sun, moon, and Earth doesn't line up completely? □ total □ partial □ annular □ solar When a lunar eclipse occurs, what phas ...
... □ both blue and red stars What do you need for an eclipse to occur? □ the sun □ the moon and the sun □ Earth, the moon, and the sun □ Earth What kind of eclipse occurs when the sun, moon, and Earth doesn't line up completely? □ total □ partial □ annular □ solar When a lunar eclipse occurs, what phas ...
Name: Class: ______
... T.V. & Radio Aerial and T.V. or radio receiver radio waves using a large curved metal dish with an aerial placed at the focus of the dish. Different types of detector are used to detect other parts of the electromagnetic spectrum. ...
... T.V. & Radio Aerial and T.V. or radio receiver radio waves using a large curved metal dish with an aerial placed at the focus of the dish. Different types of detector are used to detect other parts of the electromagnetic spectrum. ...
Document
... – The star we call the Sun and all the celestial bodies that orbit the Sun including Earth the other eight planets all their various moons smaller bodies such as asteroids and comets ...
... – The star we call the Sun and all the celestial bodies that orbit the Sun including Earth the other eight planets all their various moons smaller bodies such as asteroids and comets ...
Life Cycle of a Star
... behind. • There is so much mass its gravity prevents even light from leaving it • Black holes can suck in nearby stars and solar systems. ...
... behind. • There is so much mass its gravity prevents even light from leaving it • Black holes can suck in nearby stars and solar systems. ...
Saraswati River - Ancient Greece
... with the naked eye? 1. sun, moon, Mercury, Mars, Venus, Jupiter and Saturn 2. 1000s of stars – of which only about 1000 were identifiable in groups – namely the 48 ancient constellations which were formalised by Ptolemy (c.AD100 – 178) 3. Occasional phenomena – e.g. eclipses, comets and shooting sta ...
... with the naked eye? 1. sun, moon, Mercury, Mars, Venus, Jupiter and Saturn 2. 1000s of stars – of which only about 1000 were identifiable in groups – namely the 48 ancient constellations which were formalised by Ptolemy (c.AD100 – 178) 3. Occasional phenomena – e.g. eclipses, comets and shooting sta ...
H-R Diagrams
... An H-R Diagram is… • A graph of stars’ BRIGHTNESS and TEMPERATURE – It also shows color since color is related to temperature – It was made by two astronomers who plotted the data for thousands of stars and noticed some trends. ...
... An H-R Diagram is… • A graph of stars’ BRIGHTNESS and TEMPERATURE – It also shows color since color is related to temperature – It was made by two astronomers who plotted the data for thousands of stars and noticed some trends. ...
28C The Time Machine
... speed that light travels. But the light we see from stars takes much, much longer. Scientists measure the distances to objects like stars and planets outside our solar system in units of light years because the distances between objects in space is so huge. In fact, the closest star to Earth (other ...
... speed that light travels. But the light we see from stars takes much, much longer. Scientists measure the distances to objects like stars and planets outside our solar system in units of light years because the distances between objects in space is so huge. In fact, the closest star to Earth (other ...
ASTRONOMY 2 — Overview of the Universe Fourth Practice
... 1. True or False: Mark T if you believe the statement to be true in its entirety. Mark F if any part of the statement is false. (1) The type of radiation from a Seyfert galaxy is known as Cosmic Microwave Background Radiation. F (2) Because the Universe is expanding the distance from here to the sun ...
... 1. True or False: Mark T if you believe the statement to be true in its entirety. Mark F if any part of the statement is false. (1) The type of radiation from a Seyfert galaxy is known as Cosmic Microwave Background Radiation. F (2) Because the Universe is expanding the distance from here to the sun ...
Galaxy Redshift Surveys (obj)
... Testing on Galaxy Spectra • Slowly varying continuum + absorption lines • Highly variable “sparse” emission lines • This is the simple version of PCP: the position of the lines are known • but there are many of them, automatic detection can be useful DATA: • spiky noise can bias Streaming robust PC ...
... Testing on Galaxy Spectra • Slowly varying continuum + absorption lines • Highly variable “sparse” emission lines • This is the simple version of PCP: the position of the lines are known • but there are many of them, automatic detection can be useful DATA: • spiky noise can bias Streaming robust PC ...
Review Game
... 48) The ________ star clusters are the oldest and richest, over ten billion years old. 49) Energy transport as hot gases rise can occur by large-scale motions of the solar material in regions called: 50) Energy from the core is first outwardly transported by gradual outward diffusion of photons in t ...
... 48) The ________ star clusters are the oldest and richest, over ten billion years old. 49) Energy transport as hot gases rise can occur by large-scale motions of the solar material in regions called: 50) Energy from the core is first outwardly transported by gradual outward diffusion of photons in t ...
Classifying Stars (pages 753–754) Key Concept: Characteristics
... Classifying Stars (pages 753–754) Key Concept: Characteristics used to classify stars include color, temperature, size, composition, and brightness. ...
... Classifying Stars (pages 753–754) Key Concept: Characteristics used to classify stars include color, temperature, size, composition, and brightness. ...
Introduction to Astronomy
... • Also faintly visible at other wavelengths • A few hundred are now known • What are they? Rapidly spinning neutron stars, whose strong magnetic fields accelerate plasma to produce the beam of radio waves ...
... • Also faintly visible at other wavelengths • A few hundred are now known • What are they? Rapidly spinning neutron stars, whose strong magnetic fields accelerate plasma to produce the beam of radio waves ...
physics-p7-what-you-should
... many scientists think that it is likely that life exists elsewhere in the Universe I can recall that no evidence of extraterrestrial life (at present or in the past) has so far been detected ...
... many scientists think that it is likely that life exists elsewhere in the Universe I can recall that no evidence of extraterrestrial life (at present or in the past) has so far been detected ...
Extreme Ultraviolet
... Coronal loops are made of up of very hot gas that is attracted to magnetic field loops. These are where solar flares and coronal mass ejections originate. – Coronal mass ejections are eruptions of huge amounts of gas and magnetic field from the Sun that travel through space and can encounter planets ...
... Coronal loops are made of up of very hot gas that is attracted to magnetic field loops. These are where solar flares and coronal mass ejections originate. – Coronal mass ejections are eruptions of huge amounts of gas and magnetic field from the Sun that travel through space and can encounter planets ...
Planetary Sciences
... 6. Sun heats planets via conduction, and results in convection, so energy is transported 7. Sun’s gravity holds together Solar System 8. solar photons make chemistry happen, e.g., O3 in Earth’s atmosphere 9. Sun modifies what types of planets are found where, and allows planets to form 10. Sun creat ...
... 6. Sun heats planets via conduction, and results in convection, so energy is transported 7. Sun’s gravity holds together Solar System 8. solar photons make chemistry happen, e.g., O3 in Earth’s atmosphere 9. Sun modifies what types of planets are found where, and allows planets to form 10. Sun creat ...
File - Mr. Goodyear Astronomy
... Stage 1 Nebula – a huge cloud of gas & dust mostly of hydrogen collects and contracts due to gravity. 2-5 billion years 100 trillion-1 billion km in diameter (light years across) ...
... Stage 1 Nebula – a huge cloud of gas & dust mostly of hydrogen collects and contracts due to gravity. 2-5 billion years 100 trillion-1 billion km in diameter (light years across) ...
Summary of recent research activities
... The luminosity-metallicity relation of dIrr galaxies The very low oxygen content of SagDIG, despite a continuous SFH, could be due to galactic winds removing metals from the main body of the galaxy; indeed, for its oxygen abundance, a close-box model would predict a higher gas mass fraction than is ...
... The luminosity-metallicity relation of dIrr galaxies The very low oxygen content of SagDIG, despite a continuous SFH, could be due to galactic winds removing metals from the main body of the galaxy; indeed, for its oxygen abundance, a close-box model would predict a higher gas mass fraction than is ...
Space – Lesson 1 - Science education
... 1. Takes too long to get there 2. Can only reach nearby planets in time 3. Don’t know what wavelength to tune into, or which direction to point the aerial ...
... 1. Takes too long to get there 2. Can only reach nearby planets in time 3. Don’t know what wavelength to tune into, or which direction to point the aerial ...
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.