College Physics: A Strategic Approach, 3rd Edition, AP
... inverse square of the radial distance from the center of that object. Electric field lines are not in the curriculum. Students will be expected to rely only on the rough intuitive sense underlying field lines, wherein the field is viewed as analogous to something emanating uniformly from a source. ...
... inverse square of the radial distance from the center of that object. Electric field lines are not in the curriculum. Students will be expected to rely only on the rough intuitive sense underlying field lines, wherein the field is viewed as analogous to something emanating uniformly from a source. ...
![arXiv:1604.01613v2 [astro-ph.SR] 23 Aug 2016](http://s1.studyres.com/store/data/015708841_1-69411a0a7e7ee9a8690efbc066a22153-300x300.png)
arXiv:1604.01613v2 [astro-ph.SR] 23 Aug 2016
... in the Galaxy and Magellanic Clouds (van den Heuvel et al. 1992; Kahabka & van den Heuvel 1997) and are known as supersoft X-ray sources (SSSs). However, in order to sufficiently grow the white dwarf, models often require finetuning many uncertain input parameters such as the accretion rate (Hillebr ...
... in the Galaxy and Magellanic Clouds (van den Heuvel et al. 1992; Kahabka & van den Heuvel 1997) and are known as supersoft X-ray sources (SSSs). However, in order to sufficiently grow the white dwarf, models often require finetuning many uncertain input parameters such as the accretion rate (Hillebr ...
The white dwarf binary pathways survey – I. A sample of FGK stars
... in the Galaxy and Magellanic Clouds (van den Heuvel et al. 1992; Kahabka & van den Heuvel 1997) and are known as supersoft X-ray sources (SSSs). However, in order to sufficiently grow the white dwarf, models often require finetuning many uncertain input parameters such as the accretion rate (Hillebr ...
... in the Galaxy and Magellanic Clouds (van den Heuvel et al. 1992; Kahabka & van den Heuvel 1997) and are known as supersoft X-ray sources (SSSs). However, in order to sufficiently grow the white dwarf, models often require finetuning many uncertain input parameters such as the accretion rate (Hillebr ...
Galaxies
... •Gravitational Lensing: a massive galaxy deflects light rays like a lens so that an observer sees multiple distorted images of a more distant galaxy •Gravitational lensing is predicted by Einstein’s general theory of relativity: space is curved due to gravity ...
... •Gravitational Lensing: a massive galaxy deflects light rays like a lens so that an observer sees multiple distorted images of a more distant galaxy •Gravitational lensing is predicted by Einstein’s general theory of relativity: space is curved due to gravity ...
Research paper
... OMC1 contains a wide opening-angle, arcminute-scale outflow traced by millimeter and sub-millimeter emission lines that exhibit broad (> 100 km s−1 ) wings in molecules such as CO, SO, and SiO (Snell et al. 1984), high-velocity H2 O and SiO maser emission (Genzel et al. 1981; Greenhill et al. 1998; ...
... OMC1 contains a wide opening-angle, arcminute-scale outflow traced by millimeter and sub-millimeter emission lines that exhibit broad (> 100 km s−1 ) wings in molecules such as CO, SO, and SiO (Snell et al. 1984), high-velocity H2 O and SiO maser emission (Genzel et al. 1981; Greenhill et al. 1998; ...
Discovery of the optical counterpart to the X
... contains several strong diffuse interstellar bands (DIB), which can be used to estimate the amount of interstellar absorption toward the source (Herbig 1975; Herbig & Leka 1991; Galazutdinov et al. 2000). Table 3 summarises the measurements of the equivalent width and the corresponding estimated val ...
... contains several strong diffuse interstellar bands (DIB), which can be used to estimate the amount of interstellar absorption toward the source (Herbig 1975; Herbig & Leka 1991; Galazutdinov et al. 2000). Table 3 summarises the measurements of the equivalent width and the corresponding estimated val ...
Molecular Cloud Turbulence and Star Formation. Ballesteros
... of the interpretation that their overpressures were due to self-gravity, MCs could not be incorporated into global ISM models based on thermal pressure equilibrium, such as those by Field et al. (1969); McKee and Ostriker (1977); Wolfire et al. (1995). Recent work suggests instead that MCs are likel ...
... of the interpretation that their overpressures were due to self-gravity, MCs could not be incorporated into global ISM models based on thermal pressure equilibrium, such as those by Field et al. (1969); McKee and Ostriker (1977); Wolfire et al. (1995). Recent work suggests instead that MCs are likel ...
Full-Text PDF
... 1998, understanding its theoretical reasons presents one of the fundamental open questions in physics. This is the so-called Dark Energy issue. Another important issue is the so-called Dark Matter problem, which started in the 30s of the last century. If we observe the Doppler shift of stars moving ...
... 1998, understanding its theoretical reasons presents one of the fundamental open questions in physics. This is the so-called Dark Energy issue. Another important issue is the so-called Dark Matter problem, which started in the 30s of the last century. If we observe the Doppler shift of stars moving ...
Absorption of high-energy gamma rays in Cygnus X-3
... Conclusions. The lack of an absorption feature in the GeV emission indicates that high-energy gamma rays should be located at a minimum distance ∼108 −1010 cm from the compact object. The gamma-ray emission is unlikely to have a coronal origin. Key words. radiation mechanisms: non-thermal – stars: i ...
... Conclusions. The lack of an absorption feature in the GeV emission indicates that high-energy gamma rays should be located at a minimum distance ∼108 −1010 cm from the compact object. The gamma-ray emission is unlikely to have a coronal origin. Key words. radiation mechanisms: non-thermal – stars: i ...
Lecture Notes
... Herschel observed α Geminorum, also known as Castor, between November 1779 and March 1803. The less luminous of the two stars was to the North, and preceding visual (i.e. with smaller right ascension) during this time, and to the accuracy of Herschel’s binary measurements always at the same distance ...
... Herschel observed α Geminorum, also known as Castor, between November 1779 and March 1803. The less luminous of the two stars was to the North, and preceding visual (i.e. with smaller right ascension) during this time, and to the accuracy of Herschel’s binary measurements always at the same distance ...
Final Practice exam answer Key
... line b) strongest far from a pole and the direction at any point in space is tangent to the field line c) strongest near a pole and the direction at any point in space is perpendicular to the field line d) strongest far from a pole and the direction at any point in space is perpendicular to the fiel ...
... line b) strongest far from a pole and the direction at any point in space is tangent to the field line c) strongest near a pole and the direction at any point in space is perpendicular to the field line d) strongest far from a pole and the direction at any point in space is perpendicular to the fiel ...
Lecture 9: Supernovae
... Three hours after the neutrino detection, the first visible light reached Earth. It was seen independently by at least four observers, in Chile, New Zealand and South Africa on the evening of 24 February 1987. ...
... Three hours after the neutrino detection, the first visible light reached Earth. It was seen independently by at least four observers, in Chile, New Zealand and South Africa on the evening of 24 February 1987. ...
Chapter 4 On the possibility of a helium white dwarf donor in the
... checked whether this drop in flux could be due to telemetry overflow. We studied the flux history of another bright source in the field of view, Vela X-1, and that of the remaining background. These showed no flux decrease whatsoever, in contrast to during the data drop out periods. We conclude that ...
... checked whether this drop in flux could be due to telemetry overflow. We studied the flux history of another bright source in the field of view, Vela X-1, and that of the remaining background. These showed no flux decrease whatsoever, in contrast to during the data drop out periods. We conclude that ...
R - Institut d`Astrophysique de Paris
... The space segment of SVOM is planned to be launched early in the next decade (2021), for a 3 year nominal mission. SVOM is currently in phase C (budget accepted for phase D, E1 (post-launch) ...
... The space segment of SVOM is planned to be launched early in the next decade (2021), for a 3 year nominal mission. SVOM is currently in phase C (budget accepted for phase D, E1 (post-launch) ...
Active Galactic Nuclei
... Why do some AGN have jets and some don’t? Strong radio source: synchrotron emission (jet) Don’t confuse radio quiet (RQ) and radio silent… Franceschini et al. (1998): Not found in all studies though. Laor (2000): all quasars with MBH > 109 Mo are RL All MBH < 3 x 108 Mo are RQ ...
... Why do some AGN have jets and some don’t? Strong radio source: synchrotron emission (jet) Don’t confuse radio quiet (RQ) and radio silent… Franceschini et al. (1998): Not found in all studies though. Laor (2000): all quasars with MBH > 109 Mo are RL All MBH < 3 x 108 Mo are RQ ...
Early structure formation from cosmic string loops Abstract
... Ref. [19] studied structure formation and reionization in this new string evolution scenario and found that the resulting bound on Gµ was competitive with the CMB and gravitational radiation bounds. In the present paper we shall reexamine early structure formation by cosmic strings and its effect on ...
... Ref. [19] studied structure formation and reionization in this new string evolution scenario and found that the resulting bound on Gµ was competitive with the CMB and gravitational radiation bounds. In the present paper we shall reexamine early structure formation by cosmic strings and its effect on ...