Slide 1
... wavelength of light from most distant galaxies. The further away the galaxies are, the faster they are moving, and the bigger the observed increase in wavelength. This effect is called red-shift. c) How the observed red-shift provides evidence that the universe is expanding and supports the ‘Big Ban ...
... wavelength of light from most distant galaxies. The further away the galaxies are, the faster they are moving, and the bigger the observed increase in wavelength. This effect is called red-shift. c) How the observed red-shift provides evidence that the universe is expanding and supports the ‘Big Ban ...
The Effect of Stacking Multiple Sub
... CCD was approximately -10degC. The limiting visual magnitude was about 4.3 in this area. This camera has the following characteristics at this temperature: ...
... CCD was approximately -10degC. The limiting visual magnitude was about 4.3 in this area. This camera has the following characteristics at this temperature: ...
Results from the search for tidal disruption flares in the GALEX Deep
... Disruption of a Star by a Spinning Black Hole Constraints on MBH: MBH(t0-tD) > 1 x 108 Msun MBH() ~ 1+1-.5 x 109 Msun Critical upper limit on MBH for RT > Rs: Mcrit = 1 x 108 Msun (no spin) Mcrit = 8 x 108 Msun (O5 star) Mcrit = 8 x 108 Msun (with spin) Upper limit on MBH for RBB > Rms: RBB < 4 x ...
... Disruption of a Star by a Spinning Black Hole Constraints on MBH: MBH(t0-tD) > 1 x 108 Msun MBH() ~ 1+1-.5 x 109 Msun Critical upper limit on MBH for RT > Rs: Mcrit = 1 x 108 Msun (no spin) Mcrit = 8 x 108 Msun (O5 star) Mcrit = 8 x 108 Msun (with spin) Upper limit on MBH for RBB > Rms: RBB < 4 x ...
Spectroscope Lab
... object or the observer moves, the wavelength will change. The relationship between motion and observed wavelength is called the Doppler effect. ...
... object or the observer moves, the wavelength will change. The relationship between motion and observed wavelength is called the Doppler effect. ...
Hubble Diagram Instruction Sheet
... important discoveries of the 20th century. Until then, everyone, including astronomers, had assumed that the Universe was a stable, unchanging stage on which astronomical events played themselves out. But then, in the early 1900s scientists made several discoveries that defied easy explanation. Thes ...
... important discoveries of the 20th century. Until then, everyone, including astronomers, had assumed that the Universe was a stable, unchanging stage on which astronomical events played themselves out. But then, in the early 1900s scientists made several discoveries that defied easy explanation. Thes ...
No Slide Title
... 7-11.Crab Nebula-In 1054 AD the chinese recorded a bright new star seen in daylight for quite a long time.It was a Supernova and we see the remnants in these pictures.The first four show it as seen in four different regions of the electromagnetic spectrum[UV,visible,IR,X-ray].The final picture shows ...
... 7-11.Crab Nebula-In 1054 AD the chinese recorded a bright new star seen in daylight for quite a long time.It was a Supernova and we see the remnants in these pictures.The first four show it as seen in four different regions of the electromagnetic spectrum[UV,visible,IR,X-ray].The final picture shows ...
Ch. 15 Notes
... a neighbor to our Milky Way Galaxy (a satellite to our galaxy). It was seen by Ferdenand Magellan as he circled the world. It can only be seen from the southern hemisphere. ...
... a neighbor to our Milky Way Galaxy (a satellite to our galaxy). It was seen by Ferdenand Magellan as he circled the world. It can only be seen from the southern hemisphere. ...
Galaxies
... The radiation from these galaxies is called nonstellar radiation Many luminous galaxies are experiencing an outburst of star formation, probably due to interactions with a neighbor These galaxies are called starburst galaxies, and we will discuss them later The galaxies we will discuss now are those ...
... The radiation from these galaxies is called nonstellar radiation Many luminous galaxies are experiencing an outburst of star formation, probably due to interactions with a neighbor These galaxies are called starburst galaxies, and we will discuss them later The galaxies we will discuss now are those ...
October 2011
... bang, they should be slowing down due to their mutual gravitational pull. A supernova 1A is a special type of supernova. Each one follows a pattern which results in the same brightness at the source as a function of time. By observing the brightness on earth, the distance to the nova can be calculat ...
... bang, they should be slowing down due to their mutual gravitational pull. A supernova 1A is a special type of supernova. Each one follows a pattern which results in the same brightness at the source as a function of time. By observing the brightness on earth, the distance to the nova can be calculat ...
Galaxy Evolution Encyclopedia of Astronomy & Astrophysics eaa.iop.org Mauro Giavalisco
... times brighter than stars like the Sun, their total luminosity will approximately equal that of 2 × 1010 of these. Thus, during the star formation activity the galaxy increases its luminosity by ∼ 20%. Its colors also become bluer, because the radiation emitted by massive stars is very rich of light ...
... times brighter than stars like the Sun, their total luminosity will approximately equal that of 2 × 1010 of these. Thus, during the star formation activity the galaxy increases its luminosity by ∼ 20%. Its colors also become bluer, because the radiation emitted by massive stars is very rich of light ...
Catching Andromeda`s Light
... Andromeda’s spiral arms, he thought they might also trace the Milky Way’s spiral arms. So in 1951, Morgan mapped the locations of all the red clouds of gas he and his colleagues could find. He discovered that the gas clouds lined up along spiral arms, indicating that we live in a spiral galaxy. Why ...
... Andromeda’s spiral arms, he thought they might also trace the Milky Way’s spiral arms. So in 1951, Morgan mapped the locations of all the red clouds of gas he and his colleagues could find. He discovered that the gas clouds lined up along spiral arms, indicating that we live in a spiral galaxy. Why ...
Galaxy Evolution
... times brighter than stars like the Sun, their total luminosity will approximately equal that of 2 × 1010 of these. Thus, during the star formation activity the galaxy increases its luminosity by ∼ 20%. Its colors also become bluer, because the radiation emitted by massive stars is very rich of light ...
... times brighter than stars like the Sun, their total luminosity will approximately equal that of 2 × 1010 of these. Thus, during the star formation activity the galaxy increases its luminosity by ∼ 20%. Its colors also become bluer, because the radiation emitted by massive stars is very rich of light ...
ROTATION CURVES OF HIGH-LUMINOSITY SPIRAL GALAXIES
... galaxies. Optical observations generally determined velocities only across the nucleus and inner regions; velocities at large nuclear dis tances were rarely obtained. Radio 21-cm line observations generally integrated all the neutral hydrogen into a single profile; all spatial information was lost. ...
... galaxies. Optical observations generally determined velocities only across the nucleus and inner regions; velocities at large nuclear dis tances were rarely obtained. Radio 21-cm line observations generally integrated all the neutral hydrogen into a single profile; all spatial information was lost. ...
Equipartition magnetic fields in normal galaxies
... characterized by small-scale random field with low degree of polarization (see e.g. Brandenburg et al. 2012; Arshakian et al. 2009; Bhat & Subramanian 2013). At larger scales (∼ 1 − 10 kpc), the mean field dynamo action is responsible for amplification of the field in ∼ 108 − 109 years giving rise t ...
... characterized by small-scale random field with low degree of polarization (see e.g. Brandenburg et al. 2012; Arshakian et al. 2009; Bhat & Subramanian 2013). At larger scales (∼ 1 − 10 kpc), the mean field dynamo action is responsible for amplification of the field in ∼ 108 − 109 years giving rise t ...
Name
... 2. Why did Amaterasu hide herself in a cave? 3. What did the gods do to try and lure her out? 4. What did they do to finally get her all the way out? 5. Describe in your own words why they wanted her out of the cave… ...
... 2. Why did Amaterasu hide herself in a cave? 3. What did the gods do to try and lure her out? 4. What did they do to finally get her all the way out? 5. Describe in your own words why they wanted her out of the cave… ...
Poster - Astronomical Institute WWW Homepage
... the “Camera Control” program. Algorithm of observations when aiming at each satellite : 7 frames with an exposition 10 s and an interval of 70 s. Later on satellites are manually noted in the program “Target_pos”. The final stage of processing – high-precision calculation of coordinates are carried ...
... the “Camera Control” program. Algorithm of observations when aiming at each satellite : 7 frames with an exposition 10 s and an interval of 70 s. Later on satellites are manually noted in the program “Target_pos”. The final stage of processing – high-precision calculation of coordinates are carried ...
Galaxy Formation and Evolution
... of the Universe itself down to the scale of individual stars, and about 4 orders of magnitude in time scales, from the age of the Universe to that of the lifetime of individual, massive stars. It’s a very challenging problem!! ...
... of the Universe itself down to the scale of individual stars, and about 4 orders of magnitude in time scales, from the age of the Universe to that of the lifetime of individual, massive stars. It’s a very challenging problem!! ...
Lab 14 Galaxy Morphology
... a small disk that is composed of only old, red stars, and have no gas, little dust and no star forming regions. They are mostly a large bulge with a weak disk, with difficult-to-detect spiral arms. They actually share many properties with elliptical galaxies. Sa galaxies have large bulges, and tight ...
... a small disk that is composed of only old, red stars, and have no gas, little dust and no star forming regions. They are mostly a large bulge with a weak disk, with difficult-to-detect spiral arms. They actually share many properties with elliptical galaxies. Sa galaxies have large bulges, and tight ...
Seeing Gravitational Waves - Carnegie Observatories User Webpages
... Theorists are working out the expected electromagnetic signature from neutron star and black hole mergers; the luminosity, time scale, and spectral energy distribution. The predicted counterpart is expected to be fainter than a supernova (but brighter than a nova), last for a few hours to a few days ...
... Theorists are working out the expected electromagnetic signature from neutron star and black hole mergers; the luminosity, time scale, and spectral energy distribution. The predicted counterpart is expected to be fainter than a supernova (but brighter than a nova), last for a few hours to a few days ...
Hubble Deep Field
The Hubble Deep Field (HDF) is an image of a small region in the constellation Ursa Major, constructed from a series of observations by the Hubble Space Telescope. It covers an area 2.5 arcminutes across, about one 24-millionth of the whole sky, which is equivalent in angular size to a 65 mm tennis ball at a distance of 100 metres. The image was assembled from 342 separate exposures taken with the Space Telescope's Wide Field and Planetary Camera 2 over ten consecutive days between December 18 and December 28, 1995.The field is so small that only a few foreground stars in the Milky Way lie within it; thus, almost all of the 3,000 objects in the image are galaxies, some of which are among the youngest and most distant known. By revealing such large numbers of very young galaxies, the HDF has become a landmark image in the study of the early universe, with the associated scientific paper having received over 900 citations by the end of 2014.Three years after the HDF observations were taken, a region in the south celestial hemisphere was imaged in a similar way and named the Hubble Deep Field South. The similarities between the two regions strengthened the belief that the universe is uniform over large scales and that the Earth occupies a typical region in the Universe (the cosmological principle). A wider but shallower survey was also made as part of the Great Observatories Origins Deep Survey. In 2004 a deeper image, known as the Hubble Ultra-Deep Field (HUDF), was constructed from a few months of light exposure. The HUDF image was at the time the most sensitive astronomical image ever made at visible wavelengths, and it remained so until the Hubble Extreme Deep Field (XDF) was released in 2012.