PowerPoint プレゼンテーション
... Even if we take into account of these unknown factors, it still seems to be difficult to explain the mass difference of 4 orders of magnitude. LAB, France 07.01.2009 ...
... Even if we take into account of these unknown factors, it still seems to be difficult to explain the mass difference of 4 orders of magnitude. LAB, France 07.01.2009 ...
HR Diagram of Messier 80 using Hubble Space Telescope Data
... (4) Is the F450W a “red”, “green” or “blue” filter, meaning what color would things be if you looked through the filter at something? (5) Is the F814W a “red”, “green” or “blue” filter? (6) Is there any overlap to the filters? (7) How many other filters does the Hubble Space Telescope use? (8) Name ...
... (4) Is the F450W a “red”, “green” or “blue” filter, meaning what color would things be if you looked through the filter at something? (5) Is the F814W a “red”, “green” or “blue” filter? (6) Is there any overlap to the filters? (7) How many other filters does the Hubble Space Telescope use? (8) Name ...
GG_CERN_0707
... Chemical element distributions define gas flows, accretion/wind rates, debris from destruction makes part of the field stellar halo: well-studied, must also be understood ...
... Chemical element distributions define gas flows, accretion/wind rates, debris from destruction makes part of the field stellar halo: well-studied, must also be understood ...
The galactic metallicity gradient Martín Hernández, Nieves Leticia
... discovered a large number of these star forming clouds scattered across the Milky Way. In some cases, these clouds appear as dark regions silhouetted against a glowing background nebulosity, such as the Horsehead Nebula (Figure 3 left). In other cases, they appear as dark patches that obscure the ba ...
... discovered a large number of these star forming clouds scattered across the Milky Way. In some cases, these clouds appear as dark regions silhouetted against a glowing background nebulosity, such as the Horsehead Nebula (Figure 3 left). In other cases, they appear as dark patches that obscure the ba ...
Gas Mass Fractions and the Evolution of Spiral Galaxies
... al. 1994). The lack of red low surface brightness galaxies may itself be a selection effect (McGaugh et al. 1996a), but one still wishes to understand why the ones we do know about are so very blue. Flux limited surveys are most efficient at identifying the brightest (L∗ ) and highest contrast (µ0 ∗ ...
... al. 1994). The lack of red low surface brightness galaxies may itself be a selection effect (McGaugh et al. 1996a), but one still wishes to understand why the ones we do know about are so very blue. Flux limited surveys are most efficient at identifying the brightest (L∗ ) and highest contrast (µ0 ∗ ...
Slide 1
... Shaping must occur either at the end of AGB phase or during the short transition stage (proto-planetary nebula PPN). ...
... Shaping must occur either at the end of AGB phase or during the short transition stage (proto-planetary nebula PPN). ...
Discovery of an Unusual Optical Transient with the Hubble Space
... Fig. 2.— Flux lightcurve for z850 (top panel ) and i775 (middle panel ) scaled to maximum flux. The last three epochs (starting at +42 days) are Subaru FOCAS observations. bottom panel: i775 −z850 color for epochs with significant detection in both bands. Though the color only varies ∼0.2 magnitudes ...
... Fig. 2.— Flux lightcurve for z850 (top panel ) and i775 (middle panel ) scaled to maximum flux. The last three epochs (starting at +42 days) are Subaru FOCAS observations. bottom panel: i775 −z850 color for epochs with significant detection in both bands. Though the color only varies ∼0.2 magnitudes ...
P3A3B Particles and Quanta Notes 2013
... The Universe, 14 billion years ago, BIG BANG, an explosion of spacetime from a single point. Our star, formed 5 billion years ago, has taken around 4 billion years for quasi-intelligent live to emerge. 100 billion stars in the Milky Way Galaxy. 100 billion visible galaxies. “There’s got to be intell ...
... The Universe, 14 billion years ago, BIG BANG, an explosion of spacetime from a single point. Our star, formed 5 billion years ago, has taken around 4 billion years for quasi-intelligent live to emerge. 100 billion stars in the Milky Way Galaxy. 100 billion visible galaxies. “There’s got to be intell ...
Life cycle of low mass stars
... The big bang: The evidence In 1929 Edwin Hubble discovered a red shift in the universe Red shift = the lengthening of a wavelength due to its movement away from something. (red has a longer wavelength than the other visible colors) The discovery of red shift showed that the universe was moving apar ...
... The big bang: The evidence In 1929 Edwin Hubble discovered a red shift in the universe Red shift = the lengthening of a wavelength due to its movement away from something. (red has a longer wavelength than the other visible colors) The discovery of red shift showed that the universe was moving apar ...
PPT - Yale University
... mechanisms depend in some way on external circumstances (e.g. ionization). A very large disk is needed and transport times are very long (103 to 106 rotation periods) because disks are fragile and cannot sustain a large torque. Most disks probably do not last this long before being disrupted by ...
... mechanisms depend in some way on external circumstances (e.g. ionization). A very large disk is needed and transport times are very long (103 to 106 rotation periods) because disks are fragile and cannot sustain a large torque. Most disks probably do not last this long before being disrupted by ...
Nebulae - Innovative Teachers BG
... populated with relatively young hot stars. Interestingly here is that astronomers have observed two different disc-like objects - one of them located near the brightest stars in the cluster, and others not associated with visible stars. In the first case the star heats the gas and we observe a disc- ...
... populated with relatively young hot stars. Interestingly here is that astronomers have observed two different disc-like objects - one of them located near the brightest stars in the cluster, and others not associated with visible stars. In the first case the star heats the gas and we observe a disc- ...
Characterization and Subtraction of Well
... ghost is caused by a reflection between the filter and the window at the entrance aperture of the NIC2 dewar. The integrated brightness of the ghost is 8 mag fainter than that of the star. The ghost cannot be completely subtracted from the field unless the reference PSF is at the same location as th ...
... ghost is caused by a reflection between the filter and the window at the entrance aperture of the NIC2 dewar. The integrated brightness of the ghost is 8 mag fainter than that of the star. The ghost cannot be completely subtracted from the field unless the reference PSF is at the same location as th ...
Supplemental Educational Support Materials
... Xena and Pluto are similar in size. Xena is only slightly larger than Pluto. They both reside in the Kuiper Belt, so they probably have similar makeups – chunks of ice and rock. The pair has differences, too. Xena is more than three times farther from the Sun than Pluto. Xena also takes more than tw ...
... Xena and Pluto are similar in size. Xena is only slightly larger than Pluto. They both reside in the Kuiper Belt, so they probably have similar makeups – chunks of ice and rock. The pair has differences, too. Xena is more than three times farther from the Sun than Pluto. Xena also takes more than tw ...
Phobos
... Monthly Highlights: The first total eclipse of the Moon since 2004 occurs on the night of March 3rd-4th. Also, several bright planets are favourably placed for viewing this month. At dusk Venus is fairly high in the west and Saturn in the east-southeast. Jupiter doesn’t rise until the middle of the ...
... Monthly Highlights: The first total eclipse of the Moon since 2004 occurs on the night of March 3rd-4th. Also, several bright planets are favourably placed for viewing this month. At dusk Venus is fairly high in the west and Saturn in the east-southeast. Jupiter doesn’t rise until the middle of the ...
JRASC, June 2014 Issue (PDF, low resolution)
... instrument on NASA’s rover “Curiosity,” which has analyzed Martian sedimentary rock samples collected at Yellowknife Bay in Gale Crater. According to David T. Vaniman, a senior scientist with the Planetary Science Institute (PSI) who is leading the research, the in situ X-ray diffraction results hav ...
... instrument on NASA’s rover “Curiosity,” which has analyzed Martian sedimentary rock samples collected at Yellowknife Bay in Gale Crater. According to David T. Vaniman, a senior scientist with the Planetary Science Institute (PSI) who is leading the research, the in situ X-ray diffraction results hav ...
AWG recommendation on Cosmic Vision
... achieved within the Cosmic Vision programme. To maintain Europe's leading role in widefield imaging, and correspondingly, in weak lensing research, the optical/near-IR WFI should be implemented as soon as technically feasible. Experience from Planck will greatly benefit Europe's development of a CMB ...
... achieved within the Cosmic Vision programme. To maintain Europe's leading role in widefield imaging, and correspondingly, in weak lensing research, the optical/near-IR WFI should be implemented as soon as technically feasible. Experience from Planck will greatly benefit Europe's development of a CMB ...
Word document - Moray`s Astronomy Club, SIGMA
... Radio astronomy has been transformed over the last fifty years from large single dishes to arrays of telescopes working together to create images with amazing resolution. Megan will illustrate these fascinating new techniques and show how we are using them to study galaxies at spectacularly high res ...
... Radio astronomy has been transformed over the last fifty years from large single dishes to arrays of telescopes working together to create images with amazing resolution. Megan will illustrate these fascinating new techniques and show how we are using them to study galaxies at spectacularly high res ...
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.