Part F
... Uses fact that x-rays and gamma rays at such short wavelengths behave like ordinary light rays if they strike surfaces at a shallow enough angle. ...
... Uses fact that x-rays and gamma rays at such short wavelengths behave like ordinary light rays if they strike surfaces at a shallow enough angle. ...
Prominences in H alpha and He II Spectrum of the Sun
... prominences and filaments The spectrum of prominences contains mainly lines from Balmer’s series of hydrogen, neutral helium and H and K lines of ionized calcium. The perfect lines for observation are H alpha, H beta, and H gamma. The prominences are connected with the solar magnetic field which is ...
... prominences and filaments The spectrum of prominences contains mainly lines from Balmer’s series of hydrogen, neutral helium and H and K lines of ionized calcium. The perfect lines for observation are H alpha, H beta, and H gamma. The prominences are connected with the solar magnetic field which is ...
Broad Relativistic Iron Lines from Neutron Star LMXBs
... The Big Questions We Ask (2) Probing dense matter: What is the nature of super-dense (5-10 times the nuclear density) degenerate matter (temperature 108 K) at the neutron star core? This is a fundamental problem of physics. Particle colliders (which probe a different regime of temperature/density ...
... The Big Questions We Ask (2) Probing dense matter: What is the nature of super-dense (5-10 times the nuclear density) degenerate matter (temperature 108 K) at the neutron star core? This is a fundamental problem of physics. Particle colliders (which probe a different regime of temperature/density ...
X-ray binaries
... Many sources are found in globular clusters. Also there are more and more LMXBs found in more distant galaxies. In optics the emission is dominated by an accretion disc around a compact object. Clear classification is based on optical data or on mass function derived from X-ray observations. If a so ...
... Many sources are found in globular clusters. Also there are more and more LMXBs found in more distant galaxies. In optics the emission is dominated by an accretion disc around a compact object. Clear classification is based on optical data or on mass function derived from X-ray observations. If a so ...
PH507lecnote07_mcp2
... ASTRO-F (launched at the end of Feburary this year by the Japanese space agency, JAXA, the University of Kent had a role in its development). Visible By far the most common form of astronomy, it’s main scientific uses are in solar system/planetary studies, studying the dynamics of stars and solar ph ...
... ASTRO-F (launched at the end of Feburary this year by the Japanese space agency, JAXA, the University of Kent had a role in its development). Visible By far the most common form of astronomy, it’s main scientific uses are in solar system/planetary studies, studying the dynamics of stars and solar ph ...
Document
... million Km from Earth, where the combined gravity of Earth and Sun keep SOHO in an orbit locked to the Earth-Sun line. There, SOHO enjoys an uninterrupted view of the Sun. ...
... million Km from Earth, where the combined gravity of Earth and Sun keep SOHO in an orbit locked to the Earth-Sun line. There, SOHO enjoys an uninterrupted view of the Sun. ...
Chandra Automated Point Source Processing
... hardness ratios, and spectral quantiles are included in the AE runs. We will build up a list of absorption and emission lines for comparison against time and detector location and not be limited to the Al-Kα, Mn-Kα, and Ti-Kα energies tracked now from the external calibration source. Due to the wide ...
... hardness ratios, and spectral quantiles are included in the AE runs. We will build up a list of absorption and emission lines for comparison against time and detector location and not be limited to the Al-Kα, Mn-Kα, and Ti-Kα energies tracked now from the external calibration source. Due to the wide ...
X-ray binaries
... Many sources are found in globular clusters. Also there are more and more LMXBs found in more distant galaxies. In optics the emission is dominated by an accretion disc around a compact object. Clear classifiction is based on optical data or on mass function derived from X-ray observations. If a sou ...
... Many sources are found in globular clusters. Also there are more and more LMXBs found in more distant galaxies. In optics the emission is dominated by an accretion disc around a compact object. Clear classifiction is based on optical data or on mass function derived from X-ray observations. If a sou ...
Multi-Wavelength Observations of Known, and Searches
... If these improvements are realized, then it will provide an enormous boost for “photon-starved” binary searches! ...
... If these improvements are realized, then it will provide an enormous boost for “photon-starved” binary searches! ...
lec28 - UConn Physics
... A spacecraft (mass = m) orbits a planet (mass = M) in a circular orbit (radius = R). What is the minimum energy required to send this spacecraft to a distant point in space where the gravitational force on the spacecraft by the planet is ...
... A spacecraft (mass = m) orbits a planet (mass = M) in a circular orbit (radius = R). What is the minimum energy required to send this spacecraft to a distant point in space where the gravitational force on the spacecraft by the planet is ...
The solar atmosphere
... and the consequent emission of copious amounts of X-rays. In addition, the Sun’s apparent brightness allows measurements with unprecedented accuracy. Thus the Sun is the standard against which cosmic abundances are compared. Its high apparent brightness also means that the Sun is a strong source at ...
... and the consequent emission of copious amounts of X-rays. In addition, the Sun’s apparent brightness allows measurements with unprecedented accuracy. Thus the Sun is the standard against which cosmic abundances are compared. Its high apparent brightness also means that the Sun is a strong source at ...
letters - MIT Kavli Institute for Astrophysics and Space Research
... such as O, Ne, Ar; refs 16–18). At first sight, this chemical fractionation might render direct interpretation of coronal abundance ratios in terms of the composition of the underlying star problematic. However, that we are seeing the same Ne/O ratio in a wide variety of stars sampling a large range ...
... such as O, Ne, Ar; refs 16–18). At first sight, this chemical fractionation might render direct interpretation of coronal abundance ratios in terms of the composition of the underlying star problematic. However, that we are seeing the same Ne/O ratio in a wide variety of stars sampling a large range ...
Sun - Astronomy Outreach
... The theory that the Earth moves around the Sun, and not the other way around, was devised by ancient Greek, Indian, Babylonian, and ...
... The theory that the Earth moves around the Sun, and not the other way around, was devised by ancient Greek, Indian, Babylonian, and ...
Sun - International Year of Astronomy 2009
... The theory that the Earth moves around the Sun, and not the other way around, was devised by ancient Greek, Indian, Babylonian, and ...
... The theory that the Earth moves around the Sun, and not the other way around, was devised by ancient Greek, Indian, Babylonian, and ...
