CIRCULARLY POLARIZED EMISSION FROM THE TRANSIENT BURSTING RADIO SOURCE GCRT J1745 – 3009
نویسندگان
چکیده
منابع مشابه
Is the Bursting Radio-source Gcrt J1745-3009 a Double Neutron Star Binary ?
GCRT J1745-3009 is a peculiar transient radio-source in the direction of the Galactic Center. It was observed to emit a series of ∼ 1 Jy bursts at 0.33 GHz, with typical duration ∼ 10 min and at apparently regular intervals of ∼ 77 min. If the source is indeed at the distance of the Galactic Center as it seems likely, we show that its observational properties are compatible with those expected ...
متن کاملGCRT J1745-3009: A precessing radio pulsar?
A unique transient bursting radio source, GCRT J1745-3009, has been discovered (Hyman et al. 2005a) near the direction of the Galactic center. It is still an open question to explain this phenomenon, although some efforts to understand its nature have been made. This paper shows that most of the observed features can be reproduced by our proposed precessing pulsar model. It is found that the pr...
متن کاملGcrt J1745-3009 as a Transient White Dwarf Pulsar
A transient radio source in the direction of the Galactic Center, GCRT J1745-3009, exhibited 5 peculiar consecutive outbursts at 0.33 GHz with a period of 77.13 minutes and a duration of ∼ 10 minutes for each outburst. It has been claimed to be the prototype of a hitherto unknown class of transient radio sources. We interpret it as a transient white dwarf pulsar with a period of 77.13 minutes. ...
متن کاملGcrt J1745-3009: a Freely Precessing Pulsar?
A bursting radio source, GCRT J1745-3009, had been discovered by Hyman et al. (2005) near the direction of the Galaxy center. It bursts with a period of ∼ 77 min and a duration of ∼ 10 min. The source is very luminous during its burst state, which implies that it is not an incoherent emitter. It is still open to explain this phenomenon although a couple of scenarios had been proposed by Hyman e...
متن کاملDiscovery of Circularly Polarized Radio Emission from SS 433.
We report the discovery of circularly polarized radio emission from the radio-jet X-ray binary SS 433 with the Australia Telescope Compact Array. The flux density spectrum of the circular polarization, clearly detected at four frequencies between 1 and 9 GHz, is of the form V~nu-0.9+/-0.1. Multiple components in the source and a lack of very high spatial resolution do not allow a unique determi...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2010
ISSN: 2041-8205,2041-8213
DOI: 10.1088/2041-8205/712/1/l5