Binary and Millisecond Pulsars | SpringerLink
... neutron star’s emission beam. Profile stability is of key importance in pulsar timing measurements discussed in Section 4. The selection of integrated profiles in Figure 4 shows a rich diversity in morphology including two examples of “interpulses” – a secondary pulse separated by about 180 degrees ...
... neutron star’s emission beam. Profile stability is of key importance in pulsar timing measurements discussed in Section 4. The selection of integrated profiles in Figure 4 shows a rich diversity in morphology including two examples of “interpulses” – a secondary pulse separated by about 180 degrees ...
cas_2012_DRAFT-12 (aulakh). - Department of Physics, Panjab
... matter as a function of density and temperature reached during heavy ion collisions at ultra-relativistic energies, i.e. the state of matter existed during the first few microseconds of the big bang. Recent results of four experiments, BRAHMS, PHENIX, PHOBOS and STAR, at RHIC have shown the formatio ...
... matter as a function of density and temperature reached during heavy ion collisions at ultra-relativistic energies, i.e. the state of matter existed during the first few microseconds of the big bang. Recent results of four experiments, BRAHMS, PHENIX, PHOBOS and STAR, at RHIC have shown the formatio ...
Watson et al. 2007a - Department of Physics and Astronomy
... radial mixing of the grains is also required, to match the distribution of crystalline silicate grains in the Solar system’s remaining primitive material, and the profiles of silicate features in protoplanetary disks. Leading candidates for the radial graintransport method include turbulent diffusio ...
... radial mixing of the grains is also required, to match the distribution of crystalline silicate grains in the Solar system’s remaining primitive material, and the profiles of silicate features in protoplanetary disks. Leading candidates for the radial graintransport method include turbulent diffusio ...
H-alpha Imaging of Early-type (Sa
... correspond to 10% − 50% errors in the Hα flux, depending on the relative contribution of the continuum light. The Hα fluxes are presented in Table 3 along with the calculated Hα luminosities. The Hα fluxes include contributions from the satellite [NII] lines at λλ 6548,6584 and have not been correct ...
... correspond to 10% − 50% errors in the Hα flux, depending on the relative contribution of the continuum light. The Hα fluxes are presented in Table 3 along with the calculated Hα luminosities. The Hα fluxes include contributions from the satellite [NII] lines at λλ 6548,6584 and have not been correct ...
diplomov a prace - Univerzita Karlova
... possibly carbon, oxygen and heavier nuclei). The ash from the nuclear furnace sinks and collects in the core. There is a huge pull caused by the surrounded matter which causes huge densities, so the electrons of adjacent atoms nearly overlap. However, because of the Pauli’s exclusion principle, whic ...
... possibly carbon, oxygen and heavier nuclei). The ash from the nuclear furnace sinks and collects in the core. There is a huge pull caused by the surrounded matter which causes huge densities, so the electrons of adjacent atoms nearly overlap. However, because of the Pauli’s exclusion principle, whic ...
The effect of stellar limb darkening values on the accuracy of the
... where we abbreviated δ = 1−µ, and ∆x means the uncertainty of quantity x. The variation in the relative error in the radius ratio of the star and the planet from Eq. (1) is shown in Figure 2. First we consider the temperature region 5000K < T < 7500 K. Here the different limb darkening theories agre ...
... where we abbreviated δ = 1−µ, and ∆x means the uncertainty of quantity x. The variation in the relative error in the radius ratio of the star and the planet from Eq. (1) is shown in Figure 2. First we consider the temperature region 5000K < T < 7500 K. Here the different limb darkening theories agre ...
Galaxy Evolution Over the Past Eleven Billion Years: Mergers and
... Galaxy evolution studies have been revolutionized by the advent of near-infrared observations over the last decade. An intriguingly population of distant red galaxies, only visible at near-infrared wavelengths, was discovered. They were previously overlooked, since they are invisible even in the dee ...
... Galaxy evolution studies have been revolutionized by the advent of near-infrared observations over the last decade. An intriguingly population of distant red galaxies, only visible at near-infrared wavelengths, was discovered. They were previously overlooked, since they are invisible even in the dee ...
Herschel/PACS spectroscopy of NGC 4418 and Arp 220: H2O
... the lines are similar for the spatial resolution of the observations. Indeed the line to continuum ratio in the central and the combined 25 spaxels was found to be the same for all strong lines except for the ground-state OH 119 and 79 μm in Arp 220, which display 9% and 3% deeper absorption in the ...
... the lines are similar for the spatial resolution of the observations. Indeed the line to continuum ratio in the central and the combined 25 spaxels was found to be the same for all strong lines except for the ground-state OH 119 and 79 μm in Arp 220, which display 9% and 3% deeper absorption in the ...
Infrared identification of high-mass X
... HMXB are interacting binary systems composed of a compact object orbiting around an O/B high-mass star. They are mainly located close to their formation sites in the Galactic plane (see e.g. Bodaghee et al. 2012; Coleiro & Chaty 2013). These sources are typically separated into two principal familie ...
... HMXB are interacting binary systems composed of a compact object orbiting around an O/B high-mass star. They are mainly located close to their formation sites in the Galactic plane (see e.g. Bodaghee et al. 2012; Coleiro & Chaty 2013). These sources are typically separated into two principal familie ...
A Magneto-Gravitational Ultracold Neutron Trap
... A MAGNETO-GRAVITATIONAL NEUTRON TRAP FOR THE MEASUREMENT OF THE NEUTRON LIFETIME ...
... A MAGNETO-GRAVITATIONAL NEUTRON TRAP FOR THE MEASUREMENT OF THE NEUTRON LIFETIME ...
University of Groningen Late-type spiral galaxies Ganda, Katia
... is that one can obtain two-dimensional maps and easily identify extended structures. In particular, the two-dimensional coverage gives the possibility to straightforwardly connect the stellar populations with the kinematical structures and therefore represents a powerful tool towards a comprehensive ...
... is that one can obtain two-dimensional maps and easily identify extended structures. In particular, the two-dimensional coverage gives the possibility to straightforwardly connect the stellar populations with the kinematical structures and therefore represents a powerful tool towards a comprehensive ...
http://arxiv.org/pdf/1401.1510v1.pdf
... have (sub)-mm followup interferometry, and therefore may be subject to identification biases. E.g. Hodge et al. (2013b) show that many of the galaxies in the Wardlow et al. (2011) sample break up into multiple sources when studied at high resolution, which enevitably lead to misidentifications for s ...
... have (sub)-mm followup interferometry, and therefore may be subject to identification biases. E.g. Hodge et al. (2013b) show that many of the galaxies in the Wardlow et al. (2011) sample break up into multiple sources when studied at high resolution, which enevitably lead to misidentifications for s ...
HUBBLE SPACE TELESCOPE AND GROUND-BASED
... velocities like those found in SNe Iax. Kromer et al. (2013) also study the three-dimensional deflagration of a Chandrasekharmass white dwarf. Using radiative transfer models, they find that they can reproduce the luminosity, the early-time light curve, and the early-time spectra of SN 2005hk. Simil ...
... velocities like those found in SNe Iax. Kromer et al. (2013) also study the three-dimensional deflagration of a Chandrasekharmass white dwarf. Using radiative transfer models, they find that they can reproduce the luminosity, the early-time light curve, and the early-time spectra of SN 2005hk. Simil ...
Propagation of the First Flames in Type Ia Supernovae
... understanding the earliest stages of burning. Large-scale simulations seed the explosion with one or more physically large hot-spots. Variations in the number and location of these hotspots can lead to a wide variety of different outcomes (Niemeyer et al. 1996; Plewa et al. 2004; Garcı́a-Senz and Br ...
... understanding the earliest stages of burning. Large-scale simulations seed the explosion with one or more physically large hot-spots. Variations in the number and location of these hotspots can lead to a wide variety of different outcomes (Niemeyer et al. 1996; Plewa et al. 2004; Garcı́a-Senz and Br ...
Accreting millisecond X-ray pulsars, from accretion disk to magnetic
... Moreover, neutron stars can rotate at spin periods near a millisecond, with surface velocities as high as several percent of the speed of light. Finally, neutron stars have magnetic fields which are among the strongest observed in the Universe: typical values range from B ∼ 108 Gauss for very old sy ...
... Moreover, neutron stars can rotate at spin periods near a millisecond, with surface velocities as high as several percent of the speed of light. Finally, neutron stars have magnetic fields which are among the strongest observed in the Universe: typical values range from B ∼ 108 Gauss for very old sy ...
The effects of galaxy interactions on star formation
... This dissertation explores the effects of galaxy interactions on star formation through three separate projects. In the first two projects, we examine enhanced star formation by studying the star cluster populations of the interacting galaxies Arp 284 (NGC 7714/5) and Arp 261, using data from the Hu ...
... This dissertation explores the effects of galaxy interactions on star formation through three separate projects. In the first two projects, we examine enhanced star formation by studying the star cluster populations of the interacting galaxies Arp 284 (NGC 7714/5) and Arp 261, using data from the Hu ...
Kuchnig_CW8 - Sciences et techniques
... Status: data reduction completed, PMS photometry analysis underway COROT/CW8 - MOST - May-05 - Toulouse ...
... Status: data reduction completed, PMS photometry analysis underway COROT/CW8 - MOST - May-05 - Toulouse ...
The 3-D shaping of NGC 6741: a massive, fast
... semi-axes, respectively), surrounded by a sharp low-excitation skin (the ionization front), and embedded into a spherical (radius≃0.080 pc), almost-neutral, high-density (n(H I) ≃7×103 atoms cm−3 ) halo containing a large fraction of the nebular mass (Mhalo ≥0.20 M⊙ ). The kinematics, physical condi ...
... semi-axes, respectively), surrounded by a sharp low-excitation skin (the ionization front), and embedded into a spherical (radius≃0.080 pc), almost-neutral, high-density (n(H I) ≃7×103 atoms cm−3 ) halo containing a large fraction of the nebular mass (Mhalo ≥0.20 M⊙ ). The kinematics, physical condi ...
Document
... “These are most likely due to jets of ejecta as opposed to cavities in the circumstellar medium, since we can reject simple models for the latter.” ...
... “These are most likely due to jets of ejecta as opposed to cavities in the circumstellar medium, since we can reject simple models for the latter.” ...
P-nuclei
p-Nuclei (p stands for proton-rich) are certain proton-rich, naturally occurring isotopes of some elements between selenium and mercury which cannot be produced in either s- or r-process.