Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Creighton, Teviet"'
Low Complexity Radio Frequency Interference Mitigation for Radio Astronomy Using Large Antenna Array
With the ongoing growth in radio communications, there is an increased contamination of radio astronomical source data, which hinders the study of celestial radio sources. In many cases, fast mitigation of strong radio frequency interference (RFI) is
Externí odkaz:
http://arxiv.org/abs/2403.04250
Publikováno v:
Physical Review D 95, 042005 (2017)
Scorpius X-1 (Sco X-1) and X-ray transient (XTE) J1751-305 are Low-Mass X-ray Binaries (LMXBs) that may emit continuous gravitational waves detectable in the band of ground-based interferometric observatories. Neutron stars in LMXBs could reach a tor
Externí odkaz:
http://arxiv.org/abs/1610.09391
Autor:
Papa, Maria Alessandra, Eggenstein, Heinz-Bernd, Walsh, Sinéad, Di Palma, Irene, Allen, Bruce, Astone, Pia, Bock, Oliver, Creighton, Teviet D., Keitel, David, Machenschalk, Bernd, Prix, Reinhard, Siemens, Xavier, Singh, Avneet, Zhu, Sylvia J., Schutz, Bernard F.
Publikováno v:
Phys. Rev. D 94, 122006 (2016)
We report results of an all-sky search for periodic gravitational waves with frequency between 50 and 510 Hz from isolated compact objects, i.e. neutron stars. A new hierarchical multi-stage approach is taken, supported by the computing power of the
Externí odkaz:
http://arxiv.org/abs/1608.08928
Autor:
Creighton, Teviet David
This dissertation explores three separate issues in the field of gravitational-wave astronomy: optimal detection algorithms for quasi-periodic signals, gravitational-wave signatures of the equation of state in the early universe, and local Newtonian
Some Galactic models predict a significant population of radio pulsars close to the our galactic center. Beams from these pulsars could get strongly deflected by the supermassive black hole (SMBH) believed to reside at the galactic center and reach t
Externí odkaz:
http://arxiv.org/abs/1206.4722
According to some models, there may be a significant population of radio pulsars in the Galactic center. In principle, a beam from one of these pulsars could pass close to the supermassive black hole (SMBH) at the center, be deflected, and be detecte
Externí odkaz:
http://arxiv.org/abs/1102.5470
Publikováno v:
Astrophys.J.693:1113-1117,2009
We analyze the effect of weak field gravitational waves on the timing of pulsars, with particular attention to gauge invariance, that is, to the effects that are independent of the choice of coordinates. We find: (i) the Doppler shift cannot be separ
Externí odkaz:
http://arxiv.org/abs/0812.3941
Publikováno v:
Astrophys.J.697:237-246,2009
If a pulsar orbits a supermassive black hole, the timing of pulses that pass close to the hole will show a variety of strong field effects. To compute the intensity and timing of pulses that have passed close to a nonrotating black hole we introduce
Externí odkaz:
http://arxiv.org/abs/0812.2302
Publikováno v:
Astrophys.J. 627 (2005) L125-L128
The possible existence of intermediate mass binary black holes (IMBBHs) in globular clusters (GCs) offers a unique geometry in which to detect space-time oscillations. For certain pulsar-IMBBH configurations possible within a GC, the usual far-field
Externí odkaz:
http://arxiv.org/abs/astro-ph/0505585
Autor:
Gair, Jonathan R, Barack, Leor, Creighton, Teviet, Cutler, Curt, Larson, Shane L, Phinney, E Sterl, Vallisneri, Michele
Publikováno v:
Class.Quant.Grav. 21 (2004) S1595-S1606
One of the most exciting prospects for the LISA gravitational wave observatory is the detection of gravitational radiation from the inspiral of a compact object into a supermassive black hole. The large inspiral parameter space and low amplitude of t
Externí odkaz:
http://arxiv.org/abs/gr-qc/0405137