Evolution of Massive Binary Stars in the LMC and its Implications for
... primary star would be like a WR star. Observational data· about such systems in LMC also exist (Moffat 1989; Moffat, Niemela & Marraco 1990) and can be useful towards constraining the results derived from the binary hypothesis. The first supernova explosion (whether a Type II or Type Ib) is expected ...
... primary star would be like a WR star. Observational data· about such systems in LMC also exist (Moffat 1989; Moffat, Niemela & Marraco 1990) and can be useful towards constraining the results derived from the binary hypothesis. The first supernova explosion (whether a Type II or Type Ib) is expected ...
Neutrino Sources and Detectors
... is enclosed in a large volume. The inner walls of the volume are covered with photosensors to observe the scintillation light. The isotropy of scintillation light means that scintillator detectors cannot reconstruct particle direction as well as water Cerenkov. If the volume enclosing the scintillat ...
... is enclosed in a large volume. The inner walls of the volume are covered with photosensors to observe the scintillation light. The isotropy of scintillation light means that scintillator detectors cannot reconstruct particle direction as well as water Cerenkov. If the volume enclosing the scintillat ...
Doeleman_Haystack_Requirements_Astronomy
... • ‘Missing’ images are faint and close to lensing galaxy: can’t see them in the optical. • Only one central image has been detected so far, but UVLBI sensitivities should be sufficient to detect ~50%. • Statistical studies of central regions of galaxies possible. ...
... • ‘Missing’ images are faint and close to lensing galaxy: can’t see them in the optical. • Only one central image has been detected so far, but UVLBI sensitivities should be sufficient to detect ~50%. • Statistical studies of central regions of galaxies possible. ...
OGLE-2015-BLG-1482L: The First Isolated Low
... we find that the lens of OGLE-2015-BLG-1482 is a very low-mass star with amass 0.10 0.02 M or a brown dwarf with amass 55 9 MJ , which arelocated at D LS = 0.80 0.19 kpc and D LS = 0.54 0.08 kpc, respectively,where D LS is the distance between the lens and the source, and thus it is the ...
... we find that the lens of OGLE-2015-BLG-1482 is a very low-mass star with amass 0.10 0.02 M or a brown dwarf with amass 55 9 MJ , which arelocated at D LS = 0.80 0.19 kpc and D LS = 0.54 0.08 kpc, respectively,where D LS is the distance between the lens and the source, and thus it is the ...
Population synthesis for double white dwarfs-II. Semi
... transferred material consists mainly of helium. Faulkner et al. (1972) suggested two possibilities for the helium rich donor in AM CVn: (i) a zero-age helium star with a mass of 0.4 – 0.5 M and (ii) a low-mass degenerate helium white dwarf. The first possibility can be excluded because the helium s ...
... transferred material consists mainly of helium. Faulkner et al. (1972) suggested two possibilities for the helium rich donor in AM CVn: (i) a zero-age helium star with a mass of 0.4 – 0.5 M and (ii) a low-mass degenerate helium white dwarf. The first possibility can be excluded because the helium s ...
Nonreciprocal Electromagnetic Scattering from a Periodically Space
... the incident wave is strongly coupled to space-time harmonics in the forward direction while in the backward direction it exhibits low coupling to other harmonics. This nonreciprocity is leveraged for the realization of an electromagnetic isolator in the quasi-sonic regime and is experimentally demo ...
... the incident wave is strongly coupled to space-time harmonics in the forward direction while in the backward direction it exhibits low coupling to other harmonics. This nonreciprocity is leveraged for the realization of an electromagnetic isolator in the quasi-sonic regime and is experimentally demo ...
Dr. Charles William Lucas
... We are quibbling over some aspects of relativity theory that are not true. So what! The mainstream does not follow our rules for doing science. It does not believe in truth. If we want to make some changes in science, we need to attack the mainstream scientific method and philosophy and replace it ...
... We are quibbling over some aspects of relativity theory that are not true. So what! The mainstream does not follow our rules for doing science. It does not believe in truth. If we want to make some changes in science, we need to attack the mainstream scientific method and philosophy and replace it ...
GALAXY FORMATION AND CLUSTER FORMATION Richard B
... 1977). Typical irregular or spiral galaxies also do not make clusters as massive as typical globular clusters, so they cannot serve as suitable prototypes for the birthplaces of globular clusters. The original star-forming systems must have been both more gas-rich and more compact than present-day g ...
... 1977). Typical irregular or spiral galaxies also do not make clusters as massive as typical globular clusters, so they cannot serve as suitable prototypes for the birthplaces of globular clusters. The original star-forming systems must have been both more gas-rich and more compact than present-day g ...
instability of excitation waves induced by electrical fields
... of waves. These phenomena were observed with planar waves propagating in narrow capillaries and with circular waves subjected to unidirectional dc electric fields both in liquid and gelled media [Fee81, Šev83, Šev84, Šev92, Šev96a, Šev96b, Šev99]. Spiral waves were found to drift in the electric fie ...
... of waves. These phenomena were observed with planar waves propagating in narrow capillaries and with circular waves subjected to unidirectional dc electric fields both in liquid and gelled media [Fee81, Šev83, Šev84, Šev92, Šev96a, Šev96b, Šev99]. Spiral waves were found to drift in the electric fie ...
Symbiotic Stars as Laboratories for the Study of
... to occur every few years to decades. In some symbiotics, material that is transferred from the red giant to the WD forms a disk around the WD. Thus, symbiotic stars are a bit like overgrown cataclysmic variables (CVs), but with less violent eruptions. Symbiotic stars are not as well understood as CV ...
... to occur every few years to decades. In some symbiotics, material that is transferred from the red giant to the WD forms a disk around the WD. Thus, symbiotic stars are a bit like overgrown cataclysmic variables (CVs), but with less violent eruptions. Symbiotic stars are not as well understood as CV ...
Maximum Mass Restraint of Neutron Stars
... question is if these superfluids have unique EOS and if the interactions between lower layers of the star via these vortex properties are significant enough to take into account when determining the overall EOS. Most papers on the topic agree that it would not affect neutron star mass significantly ...
... question is if these superfluids have unique EOS and if the interactions between lower layers of the star via these vortex properties are significant enough to take into account when determining the overall EOS. Most papers on the topic agree that it would not affect neutron star mass significantly ...
Ultra-luminous Quasars with the Most Massive Black Holes at
... The first low-resolution optical spectrum of this source was obtained with the Lijiang 2.4 m telescope using the YFOSC on 2013 November 25 (UT), then follow-up by Magellan. ...
... The first low-resolution optical spectrum of this source was obtained with the Lijiang 2.4 m telescope using the YFOSC on 2013 November 25 (UT), then follow-up by Magellan. ...
The Dynamics of White Dwarfs, Black Holes and Stellar Cusps
... In chapter 4 it is shown that close binary supermassive black holes (SMBHs) should produce a burst of tidal disruptions of up to 0.1 yr−1 as they form. The quiescent rate is ∼ 10−5 yr−1 per galaxy, and it is therefore shown that binary SMBHs can potentially be identified via multiple tidal disruptio ...
... In chapter 4 it is shown that close binary supermassive black holes (SMBHs) should produce a burst of tidal disruptions of up to 0.1 yr−1 as they form. The quiescent rate is ∼ 10−5 yr−1 per galaxy, and it is therefore shown that binary SMBHs can potentially be identified via multiple tidal disruptio ...
CHAPTER 3 Methodology and Geophysical Data
... Where, G is the universal constant of gravitation (6.7 x 10-11 Nm2/kg2). In Geophysics, the gravitational acceleration (g) - the gravitational force per unit mass- is often considered more important than the absolute magnitude of the force. If the planet Earth were a nonrotating spherically symmetri ...
... Where, G is the universal constant of gravitation (6.7 x 10-11 Nm2/kg2). In Geophysics, the gravitational acceleration (g) - the gravitational force per unit mass- is often considered more important than the absolute magnitude of the force. If the planet Earth were a nonrotating spherically symmetri ...
On the possibility of a helium white dwarf donor in the presumed
... drop outs, the total bolometric energy output for a distance of 5.4 kpc is estimated to be (0.9±0.4)×1041 erg. This is a factor of at least 3 smaller than any of the 13 superbursts observed sofar (cf. Kuulkers 2004 and In ’t Zand et al. 2004a) but similar to the most energetic non-super X-ray burst ...
... drop outs, the total bolometric energy output for a distance of 5.4 kpc is estimated to be (0.9±0.4)×1041 erg. This is a factor of at least 3 smaller than any of the 13 superbursts observed sofar (cf. Kuulkers 2004 and In ’t Zand et al. 2004a) but similar to the most energetic non-super X-ray burst ...
A fully relative theory of gravitation Peter R. Lamb - DRO
... However, there are dark clouds on the horizon, although all the claimed problems have supporters and opponents over whether they are real or imagined. The first clouds are the need to postulate dark matter and dark energy. The observation of the lower than expected brightness of distant supernovae h ...
... However, there are dark clouds on the horizon, although all the claimed problems have supporters and opponents over whether they are real or imagined. The first clouds are the need to postulate dark matter and dark energy. The observation of the lower than expected brightness of distant supernovae h ...
Star Captures by Quasar Accretion Disks: A Possible Explanation of
... & Tan 2003), and hence unstable to form stars? Why is the black hole mass tightly related to the velocity dispersion of the stellar system around it, when the physical scales of these components are so vastly different? Another possibility for the growth of black holes is by the direct capture of st ...
... & Tan 2003), and hence unstable to form stars? Why is the black hole mass tightly related to the velocity dispersion of the stellar system around it, when the physical scales of these components are so vastly different? Another possibility for the growth of black holes is by the direct capture of st ...
Striated AKR Emission: A Remote Tracer of Ion Solitary Structures R.L. Mutel,
... at frequencies above 100 kHz: We detect SAKR bursts in less than 1% of all WBD spectra observed when the spacecraft was above 30◦ magnetic latitude (Note that below this latitude, there is often shadowing by the Earth’s plasmasphere.) The occurrence probabilities were computed by dividing the number ...
... at frequencies above 100 kHz: We detect SAKR bursts in less than 1% of all WBD spectra observed when the spacecraft was above 30◦ magnetic latitude (Note that below this latitude, there is often shadowing by the Earth’s plasmasphere.) The occurrence probabilities were computed by dividing the number ...