Paper 3 (pdf)
... In X-ray binaries and active galactic nuclei (AGN), accretion onto a compact object (collapsed star or massive black hole) is thought to be the basic mechanism for the release of large amounts of energy in the X-ray band. Xray radiation is polarized when the production mechanism has an inherent dire ...
... In X-ray binaries and active galactic nuclei (AGN), accretion onto a compact object (collapsed star or massive black hole) is thought to be the basic mechanism for the release of large amounts of energy in the X-ray band. Xray radiation is polarized when the production mechanism has an inherent dire ...
Radial velocity planet detection biases at the stellar rotational period
... this are Kepler 78-b (Howard et al. 2013; Pepe et al. 2013; SanchisOjeda et al. 2013; Hatzes 2014; Grunblatt, Howard & Haywood 2015), and Corot 7-b (Léger et al. 2009; Hatzes et al. 2011; Haywood et al. 2014). In these cases, the activity time-scales of the host stars were at least an order of magn ...
... this are Kepler 78-b (Howard et al. 2013; Pepe et al. 2013; SanchisOjeda et al. 2013; Hatzes 2014; Grunblatt, Howard & Haywood 2015), and Corot 7-b (Léger et al. 2009; Hatzes et al. 2011; Haywood et al. 2014). In these cases, the activity time-scales of the host stars were at least an order of magn ...
word version with changes tracked - DCC
... The petition process should be initiated before the paper is written, when possible, by contacting the P&P committee with an outline of the paper, a description of the data used and the results drawn. In some cases, the details of the writing may be needed for a final judgment. As a general guidelin ...
... The petition process should be initiated before the paper is written, when possible, by contacting the P&P committee with an outline of the paper, a description of the data used and the results drawn. In some cases, the details of the writing may be needed for a final judgment. As a general guidelin ...
Confronting Dark Matter Powered Stars with Recent Results from
... It is predicted that the rst stars in the history of the Universe formed in mini-halos of to 106 M , which also contain a large amount of Dark Matter (DM). These stars are believed to be very massive (M > 100 M ). It has been proposed that self-annihilating DM could provide an additional source o ...
... It is predicted that the rst stars in the history of the Universe formed in mini-halos of to 106 M , which also contain a large amount of Dark Matter (DM). These stars are believed to be very massive (M > 100 M ). It has been proposed that self-annihilating DM could provide an additional source o ...
ongoing massive star formation in the bulge of m511 hjglm lamers,2
... e.g., Millard et al. 1999). The galaxy was observed through the broadband Ðlters F255W and F336W in 1994 and through the broadband Ðlters F439W, F555W, F675W, and F814W in 1995. We will refer to these Ðlters as the UV, U, B, V , R, and I Ðlters. The observations in the UV, U, and B Ðlters were split ...
... e.g., Millard et al. 1999). The galaxy was observed through the broadband Ðlters F255W and F336W in 1994 and through the broadband Ðlters F439W, F555W, F675W, and F814W in 1995. We will refer to these Ðlters as the UV, U, B, V , R, and I Ðlters. The observations in the UV, U, and B Ðlters were split ...
Accreting millisecond X-ray pulsars: a search for pulsed radio
... of 1014 −1015 g/cm3 (Lattimer & Prakash 2007). The combination of high mass and small size results in an extremely large gravitational field, estimated to be about 1011 times that on the Earth. Such stars are mostly composed of neutrons, subatomic particles without electrical charge and roughly the ...
... of 1014 −1015 g/cm3 (Lattimer & Prakash 2007). The combination of high mass and small size results in an extremely large gravitational field, estimated to be about 1011 times that on the Earth. Such stars are mostly composed of neutrons, subatomic particles without electrical charge and roughly the ...
Dark baryonic matter
... • Most hydrogen is ionised and invisible in absorption spectra form dark baryonic matter ...
... • Most hydrogen is ionised and invisible in absorption spectra form dark baryonic matter ...
molecular cloud evolution. ii. from cloud formation to the
... within their assumptions, our simulations support the scenario of rapid star formation after MCs are formed, although long (k15 Myr) accumulation periods do occur during which the clouds build up their gravitational energy, and which are expected to be spent in the atomic phase. Subject headingg s: ...
... within their assumptions, our simulations support the scenario of rapid star formation after MCs are formed, although long (k15 Myr) accumulation periods do occur during which the clouds build up their gravitational energy, and which are expected to be spent in the atomic phase. Subject headingg s: ...
32_InstructorSolutionsWin
... 0.200 m 20.0 cm. There must be nodes at the planes, which 2 2 f 2(7.50 108 Hz) are 80.0 cm apart, and there are two nodes between the planes, each 20.0 cm from a plane. It is at 20 cm, 40 cm, and 60 cm from one plane that a point charge will remain at rest, since the electric fields there are z ...
... 0.200 m 20.0 cm. There must be nodes at the planes, which 2 2 f 2(7.50 108 Hz) are 80.0 cm apart, and there are two nodes between the planes, each 20.0 cm from a plane. It is at 20 cm, 40 cm, and 60 cm from one plane that a point charge will remain at rest, since the electric fields there are z ...
Recent developments in gravitational collapse and spacetime
... The stars have a life cycle wherein they are born in gigantic clouds of dust and galactic material, they then evolve and shine for millions of years, and eventually enter the phase of dissolution and extinction. Stars shine by burning their nuclear fuel within, which is mainly hydrogen, fusing it in ...
... The stars have a life cycle wherein they are born in gigantic clouds of dust and galactic material, they then evolve and shine for millions of years, and eventually enter the phase of dissolution and extinction. Stars shine by burning their nuclear fuel within, which is mainly hydrogen, fusing it in ...
Equations of state and structure of neutron stars
... radius of Earth). Unlike stars, where the pressure originates in thermal energy of their gas content, the pressure that balance gravitation attraction of white dwarfs comes from degeneracy of electrons. Since electrons are Fermi particles, their behavior is governed by the Fermi–Dirac statistics. Fo ...
... radius of Earth). Unlike stars, where the pressure originates in thermal energy of their gas content, the pressure that balance gravitation attraction of white dwarfs comes from degeneracy of electrons. Since electrons are Fermi particles, their behavior is governed by the Fermi–Dirac statistics. Fo ...
THE ORIGIN AND EVOLUTION OF PLANETARY NEBULAE
... (1918) found that PN are more similar to late-type stars and are unlikely to be young objects. Theoretical understanding of the origin of PN began with Shklovsky (1956b), who suggested that PN are progenitors of white dwarfs (WDs) and descendants of red giants. By tying PN to red giants and white dw ...
... (1918) found that PN are more similar to late-type stars and are unlikely to be young objects. Theoretical understanding of the origin of PN began with Shklovsky (1956b), who suggested that PN are progenitors of white dwarfs (WDs) and descendants of red giants. By tying PN to red giants and white dw ...
The physics of neutron stars
... While gravitational waves have not yet been detected by ground-based antennas, they have already been registered in observations of “space antennas” – double neutron stars. Two stars orbiting a common center of masses are known to emit gravitational waves. The first pulsar rotating in an orbit toget ...
... While gravitational waves have not yet been detected by ground-based antennas, they have already been registered in observations of “space antennas” – double neutron stars. Two stars orbiting a common center of masses are known to emit gravitational waves. The first pulsar rotating in an orbit toget ...
Herschel far-infrared observations of the Carina Nebula complex⋆
... Context. The Carina Nebula represents one of the largest and most active star forming regions known in our Galaxy. It contains numerous very massive (M > ∼ 40 M ) stars that strongly affect the surrounding clouds by their ionizing radiation and stellar winds. Aims. Our recently obtained Herschel PAC ...
... Context. The Carina Nebula represents one of the largest and most active star forming regions known in our Galaxy. It contains numerous very massive (M > ∼ 40 M ) stars that strongly affect the surrounding clouds by their ionizing radiation and stellar winds. Aims. Our recently obtained Herschel PAC ...
Gravitational Lensing with a Large Deflection Angle as a Probe of
... Follow this and additional works at: http://repository.upenn.edu/edissertations Part of the Cosmology, Relativity, and Gravity Commons, and the Elementary Particles and Fields and String Theory Commons ...
... Follow this and additional works at: http://repository.upenn.edu/edissertations Part of the Cosmology, Relativity, and Gravity Commons, and the Elementary Particles and Fields and String Theory Commons ...
Physics Laboratory and Activity Manual
... Paying strict attention to the teacher. Preparing for all experiments in advance by making a pre-laboratory. Always working with a laboratory partner. Keeping your work environment clear of clutter. Reporting all accidents to the teacher immediately. Using the apparatus according to the ...
... Paying strict attention to the teacher. Preparing for all experiments in advance by making a pre-laboratory. Always working with a laboratory partner. Keeping your work environment clear of clutter. Reporting all accidents to the teacher immediately. Using the apparatus according to the ...
Gravito-electromagnetic analogies
... analogy based on the fields of inertial forces, arising in the context of the 1+3 splitting of spacetime. This approach, which is herein reformulated and suitably generalized, is still not very well known, but very far reaching. It is therefore important to understand how it relates with the other k ...
... analogy based on the fields of inertial forces, arising in the context of the 1+3 splitting of spacetime. This approach, which is herein reformulated and suitably generalized, is still not very well known, but very far reaching. It is therefore important to understand how it relates with the other k ...
