Discussions on the Nature of GLEAM-X J162759.5–523504.3

Tong, H.

doi:10.3847/1538-4357/aca7fa

Cited by 8 publications

(7 citation statements)

References 66 publications

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“…For these two possibilities, there are many parameters at present. This conclusion is consistent with previous calculations for GLEAM-X J1627, based on energy budget and rotational evolution (Katz 2022;Loeb & Maoz 2022;Ronchi et al 2022;Tong 2023). Population synthesis of neutron star and white dwarf pulsars also get similar conclusions (Rea et al 2023).…”

Section: On the Nature Of Gpm J1839−10supporting

confidence: 92%

“…The death line for radio emission of normal pulsars and magnetars has been discussed in Section 2.5 in Tong (2023).…”

Section: Death Line For Neutron Star and White Dwarf Pulsarsmentioning

confidence: 99%

“…The death line for normal radio pulsars, magnetars and magnetar+fallback disk systems is shown in Figure 1, along with GPM J1839−10 and other LPRPs. Figure 1 is updated from Figure 2 in Tong (2023). The death line for white dwarf pulsars is so different from that of the neutron star case that it is shown separately in Figure 2.…”

Section: Death Line For Neutron Star and White Dwarf Pulsarsmentioning

confidence: 99%

“…For the energy budge and rotational evolution of GPM J1839 −10, similar calculations can be applied to it as that for GLEAM-X J1627 (Katz 2022;Loeb & Maoz 2022;Ronchi et al 2022;Tong 2023). Since their periods are similar (21 minutes verse 18 minutes), the same conclusion may also be applied to GPM J1839−10, i.e., magnetar+fallback disks or white dwarf pulsars.…”

Section: Introductionmentioning

confidence: 97%

“…For such slow rotators, it is more natural that they are white dwarfs (Katz 2022;Loeb & Maoz 2022). At the same time, similar to the case of RCW 103 magnetar, these LPRPs may also be magnetar+fallback disk systems (Ronchi et al 2022;Tong 2023). At present, their nature remains unclear (Rea et al 2022).…”

Section: Introductionmentioning

confidence: 99%

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On the Nature of Long Period Radio Pulsar GPM J1839-10: Death Line and Pulse Width

Tong

2023

Res. Astron. Astrophys.

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Recently another long period radio pulsar GPM J1839−10 has been reported, similar to GLEAM-X J162759.5−523504.3. Previously, the energy budget and rotational evolution of long period radio pulsars had been considered. This time, the death line and pulse width for neutron star and white dwarf pulsars are investigated. The pulse width is included as the second criterion for neutron star and white dwarf pulsars. It is found that: (1) PSR J0250+5854 and PSR J0901−4046 etc. should be normal radio pulsars. They have narrow pulse width and they lie near the radio emission death line. (2) The two long period radio pulsars GLEAM-X J162759.5−523504.3 and GPM J1839−10 are unlikely to be normal radio pulsars. Their possible pulse width is relatively large. They lie far below the fiducial death line on the P − P ̇ diagram. (3) GLEAM-X J162759.5−523504.3 and GPM J1839−10 may be magnetars or white dwarf radio pulsars. At present, there are many parameters and uncertainties in both of these possibilities.

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Section: On the Nature Of Gpm J1839−10supporting

confidence: 92%

“…The death line for radio emission of normal pulsars and magnetars has been discussed in Section 2.5 in Tong (2023).…”

Section: Death Line For Neutron Star and White Dwarf Pulsarsmentioning

confidence: 99%

Section: Death Line For Neutron Star and White Dwarf Pulsarsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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On the Nature of Long Period Radio Pulsar GPM J1839-10: Death Line and Pulse Width

Tong

2023

Res. Astron. Astrophys.

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Long-term evolutionary links between the isolated neutron star populations

Gençali,

Ertan

2024

Monthly Notices of the Royal Astronomical Society

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We have investigated the evolutionary connections of the isolated neutron star (NS) populations including radio pulsars (RPs), anomalous X-ray pulsars (AXPs), soft gamma repeaters (SGRs), dim isolated NSs (XDINs), “high-magnetic-field” RPs (“HBRPs”), central compact objects (CCOs), rotating radio transients (RRATs), and long-period pulsars (LPPs) in the fallback disc model. The model can reproduce these NS families as a natural outcome of different initial conditions (initial period, disc mass, and dipole moment, μ) with a continuous μ distribution in the ∼1027 − 5 × 1030 G cm3 range. Results of our simulations can be summarised as follows: (1) A fraction of “HBRPs” with relatively high μ evolve into the persistent AXP/SGR properties, and subsequently become LPPs. (2) Persistent AXP/SGRs do not have evolutionary links with CCOs, XDINs, and RRATs. (3) For a wide range of μ, most RRATs evolve passing through RP or “HBRP” properties during their early evolutionary phases. (4) A fraction of RRATs which have the highest estimated birth rate seem to be the progenitors of XDINs. (5) LPPs, whose existence was predicted by the fallback disc model, are the sources evolving in the late stage of evolution before the discs become inactive. These results provide concrete support to the ideas proposing evolutionary connections between the NS families to account for the “birth-rate problem”, the discrepancy between the cumulative birth rate estimated for these systems and the core-collapse supernova rate.

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A two-minute burst of highly polarized radio emission originating from low Galactic latitude

Dobie,

Zic,

Oswald

et al. 2024

Monthly Notices of the Royal Astronomical Society

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Several sources of repeating coherent bursts of radio emission with periods of many minutes have now been reported in the literature. These ‘ultra-long period’ (ULP) sources have no clear multi-wavelength counterparts and challenge canonical pulsar emission models, leading to debate regarding their nature. In this work we report the discovery of a bright, highly-polarised burst of radio emission at low Galactic latitude as part of a wide-field survey for transient and variable radio sources. ASKAP J175534.9−252749.1 does not appear to repeat, with only a single intense two-minute ∼200-mJy burst detected from 60 hours of observations. The burst morphology and polarisation properties are comparable to those of classical pulsars but the duration is more than one hundred times longer, analogous to ULPs. Combined with the existing ULP population, this suggests that these sources have a strong Galactic latitude dependence and hints at an unexplored population of transient and variable radio sources in the thin disk of the Milky Way. The resemblance of this burst with both ULPs and pulsars calls for a unified coherent emission model for objects with spin periods from milliseconds to tens of minutes. However, whether or not these are all neutron stars or have the same underlying power source remains open for debate.

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Discussions on the Nature of GLEAM-X J162759.5–523504.3

Cited by 8 publications

References 66 publications

On the Nature of Long Period Radio Pulsar GPM J1839-10: Death Line and Pulse Width

On the Nature of Long Period Radio Pulsar GPM J1839-10: Death Line and Pulse Width

Long-term evolutionary links between the isolated neutron star populations

A two-minute burst of highly polarized radio emission originating from low Galactic latitude

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