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preprint, pdf version - LESIA
... (23 June 2011). These last two events, as in 22 June 2008, were double events in which Charon and Pluto occulted the same star. In the 4 June 2011 event in particular, both occultations could be recorded at each site. The population of TNOs in general, have been far more poorly studied. Up to the ti ...
... (23 June 2011). These last two events, as in 22 June 2008, were double events in which Charon and Pluto occulted the same star. In the 4 June 2011 event in particular, both occultations could be recorded at each site. The population of TNOs in general, have been far more poorly studied. Up to the ti ...
On the nature of sn stars. I. A detailed abundance study
... questioned. There is no general agreement about their origin. We aim to derive abundances for a sample of 9 stars, including sn and non-sn stars, to determine the possible relation between sn and CP stars and compare their chemical abundances. That most sn stars belong to open clusters allows us to ...
... questioned. There is no general agreement about their origin. We aim to derive abundances for a sample of 9 stars, including sn and non-sn stars, to determine the possible relation between sn and CP stars and compare their chemical abundances. That most sn stars belong to open clusters allows us to ...
How astero-seismology can help to infer properties of - IAG-Usp
... Mass loss or transport mechanism is dominant in influencing Prot depending on the mass of the star (M >12 <12Msol) Determination of Prot versus distance from the ZAMS ...
... Mass loss or transport mechanism is dominant in influencing Prot depending on the mass of the star (M >12 <12Msol) Determination of Prot versus distance from the ZAMS ...
silicon and oxygen abundances in planet-host stars
... no such differences in their sample for alpha- and iron-peak elements. They observe no difference in the overall trends of [X/Fe] between planet hosts and their volume-limited sample of stars without any known planetary-mass companions. Based on their results, stars with planets appear to be indisti ...
... no such differences in their sample for alpha- and iron-peak elements. They observe no difference in the overall trends of [X/Fe] between planet hosts and their volume-limited sample of stars without any known planetary-mass companions. Based on their results, stars with planets appear to be indisti ...
Dynamical properties of a large young disk galaxy at z=2.03⋆
... (K= 19.7 − 21.1) and have large stellar masses (M > 1011 M⊙ ). They constitute half of the most rest-frame luminous galaxies (LV > 6 × 1010 h−2 70 L⊙ ) and their number density exceeds model predictions (e.g., Mo et al., 1998) by a factor of two. Obviously, the first and foremost question that needs ...
... (K= 19.7 − 21.1) and have large stellar masses (M > 1011 M⊙ ). They constitute half of the most rest-frame luminous galaxies (LV > 6 × 1010 h−2 70 L⊙ ) and their number density exceeds model predictions (e.g., Mo et al., 1998) by a factor of two. Obviously, the first and foremost question that needs ...
1 Distance: A History of Parallax and Brief Introduction to Standard
... which is in good agreement with today’s average value of 12,740 km (Furguson 18-21). One slight problem with his assumptions is that Syene and Alexandria do not lie along the same line of longitude. History has it that Eratosthenes sent someone to count the number of paces between the cities to arri ...
... which is in good agreement with today’s average value of 12,740 km (Furguson 18-21). One slight problem with his assumptions is that Syene and Alexandria do not lie along the same line of longitude. History has it that Eratosthenes sent someone to count the number of paces between the cities to arri ...
the first three thresholds - McGraw
... In medieval Europe, explanations of the origin of the universe were based on two main traditions. The first was Christian theology. Christianity, like Judaism, is a monotheistic religion. It posits the existence of a single, supreme God, and it explains the appearance of the universe as God’s work. ...
... In medieval Europe, explanations of the origin of the universe were based on two main traditions. The first was Christian theology. Christianity, like Judaism, is a monotheistic religion. It posits the existence of a single, supreme God, and it explains the appearance of the universe as God’s work. ...
HWWS 2010 - Monash University
... long pulse periods ~4-6s • Latter two are both likely classes of magnetars, (possibly young) systems with extremely high magnetic fields 1014– 1015 G • Compact central objects (CCOs) about which very little is known, associated with supernova remnants Galloway, “Accreting Neutron Stars – tiny Galact ...
... long pulse periods ~4-6s • Latter two are both likely classes of magnetars, (possibly young) systems with extremely high magnetic fields 1014– 1015 G • Compact central objects (CCOs) about which very little is known, associated with supernova remnants Galloway, “Accreting Neutron Stars – tiny Galact ...
T
... The long-term precision of the instrument cannot be checked easily because it requires a long time base on one hand, and the knowledge of stable stellar sources on the other hand. Especially the latter point represents a new challenge since the intrinsic stability of the stars has never been studied ...
... The long-term precision of the instrument cannot be checked easily because it requires a long time base on one hand, and the knowledge of stable stellar sources on the other hand. Especially the latter point represents a new challenge since the intrinsic stability of the stars has never been studied ...
celestial navigation heaven`s guide for mere
... Stars initially begin their lives near other stars in a cluster. After a few orbits around the galactic centre, gravitational tugs from other stars in the galaxy cause the stars in the cluster to wander away from their cluster and live their lives along or with perhaps one or two companions. The gas ...
... Stars initially begin their lives near other stars in a cluster. After a few orbits around the galactic centre, gravitational tugs from other stars in the galaxy cause the stars in the cluster to wander away from their cluster and live their lives along or with perhaps one or two companions. The gas ...
Hidden57_rf
... Universe was limited by our eyes and the thoughts that sprung from considering what they could see. The huge leap in capability that even such a simple instrument could realise set us on the path of creating ever more powerful instruments to satisfy our voracious appetite for knowledge. Nonetheless, ...
... Universe was limited by our eyes and the thoughts that sprung from considering what they could see. The huge leap in capability that even such a simple instrument could realise set us on the path of creating ever more powerful instruments to satisfy our voracious appetite for knowledge. Nonetheless, ...
Evidence for the Tidal Destruction of Hot Jupiters by Subgiant Stars
... dispersion of a thin-disk population increases with age (e.g., Binney et al. 2000). This is understood as follows. Thin disk stars form from dense, turbulent gas in the Galactic plane. Because that process is highly dissipative, stellar populations are formed with a very cold velocity distribution. ...
... dispersion of a thin-disk population increases with age (e.g., Binney et al. 2000). This is understood as follows. Thin disk stars form from dense, turbulent gas in the Galactic plane. Because that process is highly dissipative, stellar populations are formed with a very cold velocity distribution. ...
don_lamb - New Views of the Universe
... of greatest remaining mystery of GRBs: The Nature of short GRBs Follow-up observations at X-ray, optical, and radio wavelengths have led to compelling evidence that short GRBs come from merging compact binaries (as David Eichler, Mario Livio, Tsvi Piran, and David Schramm conjectured in 1989) It ...
... of greatest remaining mystery of GRBs: The Nature of short GRBs Follow-up observations at X-ray, optical, and radio wavelengths have led to compelling evidence that short GRBs come from merging compact binaries (as David Eichler, Mario Livio, Tsvi Piran, and David Schramm conjectured in 1989) It ...
- StealthSkater
... These stars quite likely have planets. Indeed, one 'M' star (known as Barnard's star) is believed to almost certainly have at least one (and 2-or-3) Jupiter-sized planets. Peter Van de Kamp of the Sproul Observatory at Swarthmore College (PA) has watched Barnard's star for over 3 decades and is conv ...
... These stars quite likely have planets. Indeed, one 'M' star (known as Barnard's star) is believed to almost certainly have at least one (and 2-or-3) Jupiter-sized planets. Peter Van de Kamp of the Sproul Observatory at Swarthmore College (PA) has watched Barnard's star for over 3 decades and is conv ...
Ursa Major
![](https://commons.wikimedia.org/wiki/Special:FilePath/Big_dipper.triddle.jpg?width=300)
Ursa Major /ˈɜrsə ˈmeɪdʒər/ (also known as the Great Bear and Charles' Wain) is a constellation in the northern celestial hemisphere. One of the 48 constellations listed by Ptolemy (second century AD), it remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its name, Latin for ""the greater (or larger) she-bear"", stands as a reference to and in direct contrast with Ursa Minor, ""the smaller she-bear"", with which it is frequently associated in mythology and amateur astronomy. The constellation's most recognizable asterism, a group of seven relatively bright stars commonly known as the ""Big Dipper"", ""the Wagon"" or ""the Plough"" (among others), both mimicks the shape of the lesser bear (the ""Little Dipper"") and is commonly used as a navigational pointer towards the current northern pole star, Polaris in Ursa Minor. The Big Dipper and the constellation as a whole have mythological significance in numerous world cultures, usually as a symbol of the north.The third largest constellation in the sky, Ursa Major is home to many deep-sky objects including seven Messier objects, four other NGC objects and I Zwicky 18, the youngest known galaxy in the visible universe.