JENAM-2011 Book of abstracts
... Instituto de Fisica de Cantabria (CSIC-UC), Santander, Spain E-mail: [email protected] The science goals of Astrophysics for the next decade or two have been spelled out by a number of scientific roadmaps, including the Astronet Science Vision, ESA Cosmic Vision 2015-25, etc. Themes like galaxy ...
... Instituto de Fisica de Cantabria (CSIC-UC), Santander, Spain E-mail: [email protected] The science goals of Astrophysics for the next decade or two have been spelled out by a number of scientific roadmaps, including the Astronet Science Vision, ESA Cosmic Vision 2015-25, etc. Themes like galaxy ...
Word version - White dwarf stars and the Chandrasekhar limit
... uniquely determined radius that corresponds well with the actual sizes of white dwarves. It is at this point that Chandra came into the picture. He had combined Fowler's ideas with Eddington's work on stellar bodies in equilibrium between gravity and their own internal pressure, and had obtained a m ...
... uniquely determined radius that corresponds well with the actual sizes of white dwarves. It is at this point that Chandra came into the picture. He had combined Fowler's ideas with Eddington's work on stellar bodies in equilibrium between gravity and their own internal pressure, and had obtained a m ...
IAA Annual Report 2014
... modelling the observed emission. Since star formation is a multi-scale process, whose spatial pattern mimics the internal structure of the parental clouds, stellar clusters probe the initial physical conditions and early dynamical evolution of recently born stars. To this aim, we observe and compile ...
... modelling the observed emission. Since star formation is a multi-scale process, whose spatial pattern mimics the internal structure of the parental clouds, stellar clusters probe the initial physical conditions and early dynamical evolution of recently born stars. To this aim, we observe and compile ...
EXPLORING FUNDAMENTAL PHYSICS WITH NEUTRON STARS
... Central Object (CCO) detected in Cassiopeia A, the youngest and warmest neutron star observed so far: its age is well known, since it is associated to the remnant of a Supernova which exploded around 1680 AD. Its surface temperature not only is well determined, but in the last decade it has been obs ...
... Central Object (CCO) detected in Cassiopeia A, the youngest and warmest neutron star observed so far: its age is well known, since it is associated to the remnant of a Supernova which exploded around 1680 AD. Its surface temperature not only is well determined, but in the last decade it has been obs ...
The size of AB Doradus A from VLTI/AMBER interferometry⋆
... The pre-main sequence (PMS) star AB Dor A is the main component of the quadruple system AB Doradus. The precise determination of the mass and photometry of the close companion to AB Dor A, AB Dor C, has provided an important benchmark for calibration of theoretical evolutionary models of low-mass st ...
... The pre-main sequence (PMS) star AB Dor A is the main component of the quadruple system AB Doradus. The precise determination of the mass and photometry of the close companion to AB Dor A, AB Dor C, has provided an important benchmark for calibration of theoretical evolutionary models of low-mass st ...
Galactic Nebulae
... Nebula is illuminated by bright star Xi Persei which is a Runaway star . Xi Persei is an O/B type giant and has has been Ejected from the Perseus OB2 stellar association over 400,000 Years ago . It encountered NGC1499 about 100,000 years ago Nebula is about 1100 light years away , and has a low surf ...
... Nebula is illuminated by bright star Xi Persei which is a Runaway star . Xi Persei is an O/B type giant and has has been Ejected from the Perseus OB2 stellar association over 400,000 Years ago . It encountered NGC1499 about 100,000 years ago Nebula is about 1100 light years away , and has a low surf ...
Spectroscopy: Unlocking the Secrets of Star Light
... sodium or neon) at rest with respect to the spectrograph, allowing the spectrum of the distant source to be calibrated and any shift of spectral lines to be measured. Recording the Spectrum Newton recorded the spectrum of sunlight by drawing it. The rise of spectroscopy for astronomical use was in p ...
... sodium or neon) at rest with respect to the spectrograph, allowing the spectrum of the distant source to be calibrated and any shift of spectral lines to be measured. Recording the Spectrum Newton recorded the spectrum of sunlight by drawing it. The rise of spectroscopy for astronomical use was in p ...
Spectroscopy: Unlocking the Secrets of Star Light
... sodium or neon) at rest with respect to the spectrograph, allowing the spectrum of the distant source to be calibrated and any shift of spectral lines to be measured. Recording the Spectrum Newton recorded the spectrum of sunlight by drawing it. The rise of spectroscopy for astronomical use was in p ...
... sodium or neon) at rest with respect to the spectrograph, allowing the spectrum of the distant source to be calibrated and any shift of spectral lines to be measured. Recording the Spectrum Newton recorded the spectrum of sunlight by drawing it. The rise of spectroscopy for astronomical use was in p ...
Entropy Production of Main-Sequence Stars
... to discuss of black holes, questions connected with the accelerated expansion of the Universe, to build and generalize gravitation theories, etc. (see, e.g., [6–10]). The majority of the papers, being strictly theoretical, place principal emphasis on functional relations between variables establishe ...
... to discuss of black holes, questions connected with the accelerated expansion of the Universe, to build and generalize gravitation theories, etc. (see, e.g., [6–10]). The majority of the papers, being strictly theoretical, place principal emphasis on functional relations between variables establishe ...
Extrasolar Cosmochemistry
... formation in protoplanetary disks. Then, in Section 6, we describe results that pertain to the evolution of planetesimals beyond their phase of nebular formation. Finally, in Section 7, we present our conclusions and suggest directions of future research. ...
... formation in protoplanetary disks. Then, in Section 6, we describe results that pertain to the evolution of planetesimals beyond their phase of nebular formation. Finally, in Section 7, we present our conclusions and suggest directions of future research. ...
and heliacal visibility of star agastya in 1350
... names are mentioned, this scheme is not about the weather. The boundaries of the felt seasons, as is well known, cannot be accurately fixed since, the changes are gradual and subject to many other vagaries. Hence, the above is an astronomical scheme for linking passage of time on earth to the appare ...
... names are mentioned, this scheme is not about the weather. The boundaries of the felt seasons, as is well known, cannot be accurately fixed since, the changes are gradual and subject to many other vagaries. Hence, the above is an astronomical scheme for linking passage of time on earth to the appare ...
1 Introduction - University of Amsterdam
... role of massive stars in our universe – it is pivotal to understand the formation and evolution of massive stars. Perhaps surprisingly so, little is known about these processes. The formation of massive stars – rare events in the present-day universe – takes place deep inside dusty interstellar clou ...
... role of massive stars in our universe – it is pivotal to understand the formation and evolution of massive stars. Perhaps surprisingly so, little is known about these processes. The formation of massive stars – rare events in the present-day universe – takes place deep inside dusty interstellar clou ...
PHY 104 Introduction to Astronomy - Missouri Western State University
... 1.4 Kepler's laws, Newton's law of universal gravitation 1.5 instrumentation 1.5.1 optical telescopes 1.5.2 radio telescopes 1.5.3 satellites 1.6 planetary model of an atom, photonic excitation of atoms, spectral lines ...
... 1.4 Kepler's laws, Newton's law of universal gravitation 1.5 instrumentation 1.5.1 optical telescopes 1.5.2 radio telescopes 1.5.3 satellites 1.6 planetary model of an atom, photonic excitation of atoms, spectral lines ...
What CAN You See With a Telescope?
... manage to see objects of 14th magnitude on very dark nights 5 . The faintest objects detectable with today’s largest groundbased telescopes are about magnitude 30. Rotation Rates Influence Asteroid Brightness Early astronomers had used their telescopes to measure the rotation rate of the Sun and ...
... manage to see objects of 14th magnitude on very dark nights 5 . The faintest objects detectable with today’s largest groundbased telescopes are about magnitude 30. Rotation Rates Influence Asteroid Brightness Early astronomers had used their telescopes to measure the rotation rate of the Sun and ...
THE EVIDENCE FROM KNOSSOS ON THE MINOAN CALENDAR
... tamia and Egypt that astronomy had an impor‐ tant role in those cultures by the early Bronze Age (3rd millennium BCE). They had calendars (Cohen 1993; Clagett 1995), and navigation, with its dependence on knowledge of the posi‐ ...
... tamia and Egypt that astronomy had an impor‐ tant role in those cultures by the early Bronze Age (3rd millennium BCE). They had calendars (Cohen 1993; Clagett 1995), and navigation, with its dependence on knowledge of the posi‐ ...
AAVSO: Epsilon Aurigae
... upon the ultraviolet spectrum obtained with FUSE (Bennett et al., 2005); the lack of any significant high-energy emission from this system suggests a stellar object rather than a black hole. This would also lend weight to the suggestion that the F star is a post-main sequence massive supergiant rath ...
... upon the ultraviolet spectrum obtained with FUSE (Bennett et al., 2005); the lack of any significant high-energy emission from this system suggests a stellar object rather than a black hole. This would also lend weight to the suggestion that the F star is a post-main sequence massive supergiant rath ...
Proficiency Step #5--
... We tend to think of constellations as a group of related stars that form a pattern, when in fact, most of the constellations consist of stars that are not related—that is, they are varying distances from Earth and their relative positions are simply a coincidence. It might be convenient to note her ...
... We tend to think of constellations as a group of related stars that form a pattern, when in fact, most of the constellations consist of stars that are not related—that is, they are varying distances from Earth and their relative positions are simply a coincidence. It might be convenient to note her ...
Star formation in a galactic outflow
... the spheroidal component of galaxies11,13, and would contribute to the population of highvelocity stars, which could even escape the galaxy13. Such star formation could provide in-situ chemical enrichment of the circumgalactic and intergalactic medium (through supernova explosions of young stars on ...
... the spheroidal component of galaxies11,13, and would contribute to the population of highvelocity stars, which could even escape the galaxy13. Such star formation could provide in-situ chemical enrichment of the circumgalactic and intergalactic medium (through supernova explosions of young stars on ...