scholarly journals A Model of Short Gamma‐Ray Bursts: Heated Neutron Stars in Close Binary Systems

2002 ◽  
Vol 578 (1) ◽  
pp. 310-316 ◽  
Author(s):  
Jay D. Salmonson ◽  
James R. Wilson
Keyword(s):  
Neutron Stars ◽  
Binary Systems ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
Close Binary ◽  
Close Binary Systems

Induction of Supernova-like Explosions by Gamma-Ray Bursts in Close Binary Systems

2000 ◽  
Vol 531 (2) ◽  
pp. L127-L130 ◽  
Author(s):  
Mordehai Milgrom ◽  
Vladimir V. Usov
Keyword(s):  
Binary Systems ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
Close Binary ◽  
Close Binary Systems

scholarly journals Pulsars and Close Binary Systems

1971 ◽  
Vol 46 ◽  
pp. 273-278
Author(s):  
Virginia Trimble ◽  
Martin Rees
Keyword(s):  
Mass Transfer ◽  
Neutron Stars ◽  
Binary Systems ◽  
Alternative Explanation ◽  
Galactic Plane ◽  
Orbital Motion ◽  
Close Binary ◽  
Close Binaries ◽  
Close Binary Systems ◽  
Supernova Explosions

It is first considered what must happen if pulsars (i.e. neutron stars) are formed in close binary systems (CBS), and whether the resulting orbital motion and mass transfer should be observable. As this set of alternatives seems unlikely, there follow suggestions of how one might prevent the formation of neutron stars in close binaries. Finally, it is shown that ‘runaway’ pulsars with velocities larger than about 15 km/sec cannot be produced by isotropic supernova explosions within close binaries, and an alternative explanation is suggested for the observed correlation of periods of pulsars with their distances from the galactic plane.

Neutron Stars in Close Binary Systems

1974 ◽  
Vol 192 ◽  
pp. L71 ◽  
Author(s):  
J. Craig Wheeler ◽  
C. F. McKee ◽  
M. Lecar
Keyword(s):  
Neutron Stars ◽  
Binary Systems ◽  
Close Binary ◽  
Close Binary Systems

scholarly journals Analysis of broad-lined Type Ic supernovae from the (intermediate) Palomar Transient Factory

2019 ◽  
Vol 621 ◽  
pp. A71 ◽  
Author(s):  
F. Taddia ◽  
J. Sollerman ◽  
C. Fremling ◽  
C. Barbarino ◽  
E. Karamehmetoglu ◽  
...  
Keyword(s):  
Binary Systems ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
Light Curves ◽  
Close Binary ◽  
Host Galaxy ◽  
Scaling Relations ◽  
Homogeneous Sample ◽  
Long Duration ◽  
Absolute Magnitudes

We study 34 Type Ic supernovae that have broad spectral features (SNe Ic-BL). This is the only SN type found in association with long-duration gamma-ray bursts (GRBs). We obtained our photometric data with the Palomar Transient Factory (PTF) and its continuation, the intermediate PTF (iPTF). This is the first large, homogeneous sample of SNe Ic-BL from an untargeted survey. Furthermore, given the high observational cadence of iPTF, most of these SNe Ic-BL were discovered soon after explosion. We present K-corrected Bgriz light curves of these SNe, obtained through photometry on template-subtracted images. We analyzed the shape of the r-band light curves, finding a correlation between the decline parameter Δm15 and the rise parameter Δm−10. We studied the SN colors and, based on g − r, we estimated the host-galaxy extinction for each event. Peak r-band absolute magnitudes have an average of −18.6 ± 0.5 mag. We fit each r-band light curve with that of SN 1998bw (scaled and stretched) to derive the explosion epochs. We computed the bolometric light curves using bolometric corrections, r-band data, and g − r colors. Expansion velocities from Fe II were obtained by fitting spectral templates of SNe Ic. Bolometric light curves and velocities at peak were fitted using the semianalytic Arnett model to estimate ejecta mass Mej, explosion energy EK and 56Ni mass M(56Ni) for each SN. We find average values of Mej = 4 ± 3 M⊙, EK = (7 ± 6)×1051 erg, and M(56Ni)=0.31  ±  0.16 M⊙. The parameter distributions were compared to those presented in the literature and are overall in agreement with them. We also estimated the degree of 56Ni mixing using scaling relations derived from hydrodynamical models and we find that all the SNe are strongly mixed. The derived explosion parameters imply that at least 21% of the progenitors of SNe Ic-BL are compatible with massive (> 28 M⊙), possibly single stars, whereas at least 64% might come from less massive stars in close binary systems.

scholarly journals Spindown of neutron stars in close binary systems

1979 ◽  
Vol 186 (4) ◽  
pp. 779-782 ◽  
Author(s):  
R. E. Davies ◽  
A. C. Fabian ◽  
J. E. Pringle
Keyword(s):  
Neutron Stars ◽  
Binary Systems ◽  
Close Binary ◽  
Close Binary Systems

Masses of neutron stars and blackholes born in close binary systems

2000 ◽  
Vol 19 (2) ◽  
pp. 123-131 ◽  
Author(s):  
S. O. Tagieva ◽  
A. Ankay ◽  
O. H. Guseinov ◽  
A. Sezer
Keyword(s):  
Neutron Stars ◽  
Binary Systems ◽  
Close Binary ◽  
Close Binary Systems
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