The Early Evolution of Solids in Protoplanetary Disks
... of planets. According to the core accretion scenario, the formation of planets involves a variety of physical mechanisms starting from the coagulation of sub-µm sized particles and going up to the gas-accretion phase leading to the build up of rocky planets and gas giants. The first stages of this p ...
... of planets. According to the core accretion scenario, the formation of planets involves a variety of physical mechanisms starting from the coagulation of sub-µm sized particles and going up to the gas-accretion phase leading to the build up of rocky planets and gas giants. The first stages of this p ...
Colour-magnitude diagrams of the post
... A quantitative check of the presence of an HB was carried out by counting stars in frames with different apertures around the cluster center. In Table 2 are given the numbers corresponding to: HB contained in the box of stars bluer than V − I < 1.6 and in the magnitude interval 18.2 < V < 19.8 and f ...
... A quantitative check of the presence of an HB was carried out by counting stars in frames with different apertures around the cluster center. In Table 2 are given the numbers corresponding to: HB contained in the box of stars bluer than V − I < 1.6 and in the magnitude interval 18.2 < V < 19.8 and f ...
Molecular Gas in the Large Magellanic Cloud
... They brought me up to believe that learning is its own reward, and have been living with the consequences ever since. It is too easy to take the constant things in one’s life for granted, but I am profoundly grateful for their love and support, and appreciative that I never once heard them say the w ...
... They brought me up to believe that learning is its own reward, and have been living with the consequences ever since. It is too easy to take the constant things in one’s life for granted, but I am profoundly grateful for their love and support, and appreciative that I never once heard them say the w ...
2012 December Vol. 49 No 584
... call them, the ‘fuzzies’. I was indebted to Ian Bruce and Brian Colthorpe for looking after us as their observatories. However for several people present it was also their first chance to try their hand at observing a whole range of such objects and of considerable variation in difficulty for the vi ...
... call them, the ‘fuzzies’. I was indebted to Ian Bruce and Brian Colthorpe for looking after us as their observatories. However for several people present it was also their first chance to try their hand at observing a whole range of such objects and of considerable variation in difficulty for the vi ...
THE COMET`S TALE - Institute of Astronomy
... hydrogen atoms are aligned or not. The ortho-to-para ratio strongly depends on the physical environment, and would have been preserved when the molecules were confined into the icy cometary nuclei. The observed ratio can therefore reveal the temperature at the time the ice was formed. Molecules in t ...
... hydrogen atoms are aligned or not. The ortho-to-para ratio strongly depends on the physical environment, and would have been preserved when the molecules were confined into the icy cometary nuclei. The observed ratio can therefore reveal the temperature at the time the ice was formed. Molecules in t ...
the MPO Canopus manual - Bdw Publishing
... Credit to the individual orbit computers is implicit by the inclusion of the name of the orbit computer on each orbit record. Information on how to obtain updated copies of the data file must be provided. New versions of this file, updated on a daily basis, will be available at http://www.minorplane ...
... Credit to the individual orbit computers is implicit by the inclusion of the name of the orbit computer on each orbit record. Information on how to obtain updated copies of the data file must be provided. New versions of this file, updated on a daily basis, will be available at http://www.minorplane ...
SkyWatcher2017.5 1.3 Mb - Boise Astronomical Society
... luminosity distance of DL = 749 mega-parsecs may be calculated from z. It is also one of the most luminous quasars known, with an absolute magnitude of −26.7, meaning that if it were only as distant as Pollux it would appear nearly as bright in the sky as the Sun. Since the sun's absolute magnitude ...
... luminosity distance of DL = 749 mega-parsecs may be calculated from z. It is also one of the most luminous quasars known, with an absolute magnitude of −26.7, meaning that if it were only as distant as Pollux it would appear nearly as bright in the sky as the Sun. Since the sun's absolute magnitude ...
The XMM-Newton Bright Serendipitous Survey
... In the last years the XMM-Newton images have been reprocessed with improved versions of the SAS and the astrometry has been refined and corrected. We have thus recomputed the X-ray-optical offsets using the improved X-ray positions included in the preliminary version of the second XMM-Newton Serendi ...
... In the last years the XMM-Newton images have been reprocessed with improved versions of the SAS and the astrometry has been refined and corrected. We have thus recomputed the X-ray-optical offsets using the improved X-ray positions included in the preliminary version of the second XMM-Newton Serendi ...
Unfolding the Milky Way bulge - International Max Planck Research
... law. Part of this region was also covered by the DENIS survey, used in Schultheis et al. (1999) to build an extinction map shown in the lower panel. . . . . . . . . 5.9 Upper panel shows the comparison of the AKs values obtained in this work and those of Schultheis et al. (1999) for the common inner ...
... law. Part of this region was also covered by the DENIS survey, used in Schultheis et al. (1999) to build an extinction map shown in the lower panel. . . . . . . . . 5.9 Upper panel shows the comparison of the AKs values obtained in this work and those of Schultheis et al. (1999) for the common inner ...
Tuomas Kangas
... their lives in tremendously energetic explosions. New observations of SNe eventually verified this claim. Other types of SNe were also found, caused by e.g. the terminal explosions of WDs in so-called thermonuclear SNe. Nowadays, new SNe are discovered by the hundreds each year, as several new trans ...
... their lives in tremendously energetic explosions. New observations of SNe eventually verified this claim. Other types of SNe were also found, caused by e.g. the terminal explosions of WDs in so-called thermonuclear SNe. Nowadays, new SNe are discovered by the hundreds each year, as several new trans ...
Search For Gas Giants Around Late-m Dwarfs - STARS
... temperature, absolute radial velocities, rotational velocities and rotation periods. The identification of neutral atomic lines was carried out using the Vienna Atomic line Database. We were able to confirm these lines that were previously identified. We also found that some of the lines observed in ...
... temperature, absolute radial velocities, rotational velocities and rotation periods. The identification of neutral atomic lines was carried out using the Vienna Atomic line Database. We were able to confirm these lines that were previously identified. We also found that some of the lines observed in ...
Here - NASA/IPAC Extragalactic Database
... planetary nebulae (both Galactic and extragalactic) and in Galactic H ii regions. Abundances in extragalactic H ii regions were treated by Don Garnett, and the determination of the primordial helium abundance using low metallicity H ii galaxies was discussed by ...
... planetary nebulae (both Galactic and extragalactic) and in Galactic H ii regions. Abundances in extragalactic H ii regions were treated by Don Garnett, and the determination of the primordial helium abundance using low metallicity H ii galaxies was discussed by ...
Article PDF - IOPscience
... pairs of exposures per filter per year, where the observations within each so-called transit-time-interval pair were taken ∼25 minutes apart and in the same band. Thus, the survey should have obtained about 16 observations in each band (for a total of 80), but due to bad weather and telescope downtim ...
... pairs of exposures per filter per year, where the observations within each so-called transit-time-interval pair were taken ∼25 minutes apart and in the same band. Thus, the survey should have obtained about 16 observations in each band (for a total of 80), but due to bad weather and telescope downtim ...
The Legacy of Galileo - Keck Institute for Space Studies
... asserted the contrary, by positively affirming the nerves to stem from the heart, I should be bound to confess your opinion to be true.”7 This was the point, the philosopher and the theologian would have not agreed to change their views based on the experiment if the experimental evidence was agains ...
... asserted the contrary, by positively affirming the nerves to stem from the heart, I should be bound to confess your opinion to be true.”7 This was the point, the philosopher and the theologian would have not agreed to change their views based on the experiment if the experimental evidence was agains ...
PowerPoint - Herschel Space Observatory
... – The shape of the spectrum is always the same, but the peak wavelength changes with temperature. – But not all objects are black bodies. – Atoms, molecules and electrons emit radiation with a different ...
... – The shape of the spectrum is always the same, but the peak wavelength changes with temperature. – But not all objects are black bodies. – Atoms, molecules and electrons emit radiation with a different ...
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.