The Early Evolution of Solids in Protoplanetary Disks
... and going up to the gas-accretion phase leading to the build up of rocky planets and gas giants. The first stages of this process are characterized by collisional growth of tiny subµm sized grains, as those found in the interstellar medium. Observations in the millimeter can directly probe the exist ...
... and going up to the gas-accretion phase leading to the build up of rocky planets and gas giants. The first stages of this process are characterized by collisional growth of tiny subµm sized grains, as those found in the interstellar medium. Observations in the millimeter can directly probe the exist ...
the comet`s tale - Institute of Astronomy
... Rather predictably the expected comet of the century failed to materialise, however several of the other comets mentioned in the last issue, together with the additional surprise shown above, put on good appearances. 2011 L4 (PanSTARRS), 2012 F6 (Lemmon), 2012 S1 (ISON) and 2013 R1 (Lovejoy) all bec ...
... Rather predictably the expected comet of the century failed to materialise, however several of the other comets mentioned in the last issue, together with the additional surprise shown above, put on good appearances. 2011 L4 (PanSTARRS), 2012 F6 (Lemmon), 2012 S1 (ISON) and 2013 R1 (Lovejoy) all bec ...
Characterization of the physical properties of the ROSETTA target
... mm-sized or larger particles (Agarwal 2007, and references therein). These dust grains have low emission speed (about m/s) and are little sensitive to solar radiation pressure, thus they remain close to the comet orbit for two or more revolutions around the Sun. They appear as a faint linear structu ...
... mm-sized or larger particles (Agarwal 2007, and references therein). These dust grains have low emission speed (about m/s) and are little sensitive to solar radiation pressure, thus they remain close to the comet orbit for two or more revolutions around the Sun. They appear as a faint linear structu ...
CoRoT III programme
... For instance CoRoT has discovered the first member of the new class of planets: Super-Earths orbiting very close to their parent star. It has also discovered the first two brown dwarfs at short orbital period and has provided the measure of their radii The precise characterization of Solar Like Osci ...
... For instance CoRoT has discovered the first member of the new class of planets: Super-Earths orbiting very close to their parent star. It has also discovered the first two brown dwarfs at short orbital period and has provided the measure of their radii The precise characterization of Solar Like Osci ...
Franz Liszt: An Esoteric Astrological Analysis
... its distance from the celestial equator. Two objects are said to be parallel if they share the same declination within a one-degree orb. This relationship is analogous to a conjunction, in which two planets adjoin one another, resulting in a blending of their energies. Two planets are said to be con ...
... its distance from the celestial equator. Two objects are said to be parallel if they share the same declination within a one-degree orb. This relationship is analogous to a conjunction, in which two planets adjoin one another, resulting in a blending of their energies. Two planets are said to be con ...
PhD thesis
... 3.4 Molecular results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.1 Molecular dense gas: morphology and velocity fields . . . . . 3.4.2 Molecular dense gas: temperature and density . . . . . . . . 3.4.3 Ionized gas emission within the molecular emission . . . . . . 3.5 Summary and ...
... 3.4 Molecular results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.1 Molecular dense gas: morphology and velocity fields . . . . . 3.4.2 Molecular dense gas: temperature and density . . . . . . . . 3.4.3 Ionized gas emission within the molecular emission . . . . . . 3.5 Summary and ...
possible chronological markers in the vedic texts
... night sky this constellation does indeed look like a spoon or a pot with a handle and during the night (and the year) it ‘turns over to empty its contents’. If this interpretation is correct then all stars of Sapta R. s. is must have been circumpolar when these passages were composed, otherwise the ...
... night sky this constellation does indeed look like a spoon or a pot with a handle and during the night (and the year) it ‘turns over to empty its contents’. If this interpretation is correct then all stars of Sapta R. s. is must have been circumpolar when these passages were composed, otherwise the ...
Revising the census of low luminosity AGN
... WHY AN AGN CENSUS? • A PROPER AGN CENSUS IS NEEDED FOR A VARIETY OF STUDIES, SUCH AS, E.G. , THE AGN/HOST GALAXY CONNECTION, THE PROPERTIES OF THE CENTRAL ENGINE, THE AGN LUMINOSITY FUNCTION … • THE CENSUS SHOULD BE COMPLETE (OR AT LEAST WITH WELL DEFINED BIASES) AND INCLUDE THE LEAST NUMBER OF INT ...
... WHY AN AGN CENSUS? • A PROPER AGN CENSUS IS NEEDED FOR A VARIETY OF STUDIES, SUCH AS, E.G. , THE AGN/HOST GALAXY CONNECTION, THE PROPERTIES OF THE CENTRAL ENGINE, THE AGN LUMINOSITY FUNCTION … • THE CENSUS SHOULD BE COMPLETE (OR AT LEAST WITH WELL DEFINED BIASES) AND INCLUDE THE LEAST NUMBER OF INT ...
THE COMET`S TALE - Institute of Astronomy
... Than Ours, from his Sunday school library which led him to an interest in astronomy. This interest was further inspired by the conjunction of Jupiter and Mars on May 7th, 1879, when the planets were slightly over one degree apart, and/or July 22nd, 1881, when the two planets were separated by only s ...
... Than Ours, from his Sunday school library which led him to an interest in astronomy. This interest was further inspired by the conjunction of Jupiter and Mars on May 7th, 1879, when the planets were slightly over one degree apart, and/or July 22nd, 1881, when the two planets were separated by only s ...
Protoplanetary Disks and their Evolution
... been obtained for over 2000 YSOs therein (e.g., Kesser-Silacci et al. 2006; Furlan et al. 2009; Oliveria et al. 2010). The precision and wavelength coverage of these observations show the tremendous diversity of disk SEDs and the inadequacy of a single parameter, αIR , to characterize the full range ...
... been obtained for over 2000 YSOs therein (e.g., Kesser-Silacci et al. 2006; Furlan et al. 2009; Oliveria et al. 2010). The precision and wavelength coverage of these observations show the tremendous diversity of disk SEDs and the inadequacy of a single parameter, αIR , to characterize the full range ...
General NG Celestial Questions
... B. aligning the relative bearing markings so that 000° is on the lubber's line and the line of sight passes over the center of the compass C. ensuring that the alignment marks on the inner face of the circle are in line with those on the repeater on relative bearings of 000° and 090° D. comparing ob ...
... B. aligning the relative bearing markings so that 000° is on the lubber's line and the line of sight passes over the center of the compass C. ensuring that the alignment marks on the inner face of the circle are in line with those on the repeater on relative bearings of 000° and 090° D. comparing ob ...
The XMM-Newton Bright Serendipitous Survey
... sources is relatively easy given the combination of the good positions of the XMM-Newton sources (90% error ∼400 , Della Ceca et al. 2004) and the brightness of the sources: X-ray sources with FX >10−13 erg cm−2 s−1 are expected to have an optical counterpart brighter than 22 mag for X-ray-to-optica ...
... sources is relatively easy given the combination of the good positions of the XMM-Newton sources (90% error ∼400 , Della Ceca et al. 2004) and the brightness of the sources: X-ray sources with FX >10−13 erg cm−2 s−1 are expected to have an optical counterpart brighter than 22 mag for X-ray-to-optica ...
Development of a Software Package for the Reduction and Analysis
... locations. The analysis of the double station meteors has resulted in a double station database of 457 meteors containing their radiants, velocities and orbital elements. A good agreement was found between the orbital elements of the α-Virginids and its possible parent candidate 1998 SH2. A detailed ...
... locations. The analysis of the double station meteors has resulted in a double station database of 457 meteors containing their radiants, velocities and orbital elements. A good agreement was found between the orbital elements of the α-Virginids and its possible parent candidate 1998 SH2. A detailed ...
Unfolding the Milky Way bulge - International Max Planck Research
... 5.7 Difference between the AKs values obtained in this work and those of Schlegel et al. (1998), as a function of Galactic latitude, for 1000 randomly distributed 30′ × 30′ regions between (−8◦ < b < −1◦ ). . . . . . . . . . . . . . . . . . . . 5.8 The upper panel shows the inner ∼ ±2◦ region around ...
... 5.7 Difference between the AKs values obtained in this work and those of Schlegel et al. (1998), as a function of Galactic latitude, for 1000 randomly distributed 30′ × 30′ regions between (−8◦ < b < −1◦ ). . . . . . . . . . . . . . . . . . . . 5.8 The upper panel shows the inner ∼ ±2◦ region around ...
X-ray astronomy of stellar coronae (Review)
... point would be missing if the success of the Skylab mission in the early seventies were not mentioned. The high-quality images of the full-disk Sun in X-rays formed, together with data from previous rocket flights, our modern picture of the solar and therefore stellar coronae. The solar X-ray corona ...
... point would be missing if the success of the Skylab mission in the early seventies were not mentioned. The high-quality images of the full-disk Sun in X-rays formed, together with data from previous rocket flights, our modern picture of the solar and therefore stellar coronae. The solar X-ray corona ...
Was the bright comet of 1742 discovered from India?
... his description has turned out to be correct selectively as somewhere it runs counter to the brightness estimates. On the face of it, the Shawwāl observation is perplexing. However, I can explain it in one possible way. Comets can be unreliable in respect of their activity (read brightness) in their ...
... his description has turned out to be correct selectively as somewhere it runs counter to the brightness estimates. On the face of it, the Shawwāl observation is perplexing. However, I can explain it in one possible way. Comets can be unreliable in respect of their activity (read brightness) in their ...
2012 December Vol. 49 No 584
... SN2012eg in NGC 1213 = PSN J03091697+3838207 (E2849) discovered by Tom Boles, Coddenham, England. TypeIIP supernova similar to SN 2005cs about one month after explosion (CBET 3207). SN2012ej in IC 2166 = PSN J06265101+5905026 (E2852) discovered by Dave Grennan, Raheny Observatory, Dublin, Ireland. T ...
... SN2012eg in NGC 1213 = PSN J03091697+3838207 (E2849) discovered by Tom Boles, Coddenham, England. TypeIIP supernova similar to SN 2005cs about one month after explosion (CBET 3207). SN2012ej in IC 2166 = PSN J06265101+5905026 (E2852) discovered by Dave Grennan, Raheny Observatory, Dublin, Ireland. T ...
Mid-infrared Properties of Seyfert Galaxies: the IRAS 12um Sample
... In addition to a ~3500 K stellar blackbody and PAH component, we find that we need ~3 additional continuum dust components with T~400, ~150, and ~30 K to accurately fit the entire sample. An AGN manifests its presence with the requirement of an additional hot dust component T~800K (Laurent et al. 20 ...
... In addition to a ~3500 K stellar blackbody and PAH component, we find that we need ~3 additional continuum dust components with T~400, ~150, and ~30 K to accurately fit the entire sample. An AGN manifests its presence with the requirement of an additional hot dust component T~800K (Laurent et al. 20 ...
IOTA Observer`s Manual
... of asteroids in our solar system. In 1985, Pluto’s atmosphere was discovered by the occultation technique. In March 1977, the occultation of a bright star by the planet Uranus resulted in the discovery of its ring system. This ring system might actually have been seen indirectly by the discoverer of ...
... of asteroids in our solar system. In 1985, Pluto’s atmosphere was discovered by the occultation technique. In March 1977, the occultation of a bright star by the planet Uranus resulted in the discovery of its ring system. This ring system might actually have been seen indirectly by the discoverer of ...
On the characterisation of the Galactic warp in the Gaia era
... all of your support and patience, aspiring guidance and immense knowledge. You always made time to help and advise me. I have been a pleasure for me to work with you. Also, I really appreciate you being so sensitive and supportive towards women’s right. Thank you Luis for being such an incredible te ...
... all of your support and patience, aspiring guidance and immense knowledge. You always made time to help and advise me. I have been a pleasure for me to work with you. Also, I really appreciate you being so sensitive and supportive towards women’s right. Thank you Luis for being such an incredible te ...
Infrared Astronomy
... Humans at normal body temperature, radiate most strongly in the infrared, which is definitely not seen by human eyes. The scientific discovery that the heat we all feel coming from the Sun is largely a radiation beyond the visible red colour of the solar spectrum was made by William Herschel in 1800 ...
... Humans at normal body temperature, radiate most strongly in the infrared, which is definitely not seen by human eyes. The scientific discovery that the heat we all feel coming from the Sun is largely a radiation beyond the visible red colour of the solar spectrum was made by William Herschel in 1800 ...
The Day We Found the Universe
... telescopes could peer. Indications of the Milky Way's true place in the universe had been cropping up for years, but the evidence was indirect, con icting, and controversial. Hubble stepped into the fray and nally provided the decisive proof. He con rmed an idea to everyone's satisfaction that befor ...
... telescopes could peer. Indications of the Milky Way's true place in the universe had been cropping up for years, but the evidence was indirect, con icting, and controversial. Hubble stepped into the fray and nally provided the decisive proof. He con rmed an idea to everyone's satisfaction that befor ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.