Detection of CHIME J1634+44 pulses at 111 MHz
ATel #17333; Viktoriya Fedorova (P. N.Lebedev Physical Institute), A. E.Rodin (P. N.Lebedev Physical Institute)
on 14 Aug 2025; 15:06 UT
Credential Certification: Alexander Rodin (rodin@prao.ru)
Subjects: Radio, Gravitational Waves, Neutron Star, Transient, Pulsar, Fast Radio Burst, Magnetar
The paper (arXiv:2507.05139) reported the discovery of a new Long Period Radio Transient (LPT) - CHIME J1634+44. We analyzed data from the BSA LPI radio telescope from January 2022 to April 2025 to search for pulses of CHIME J1634+44 at a frequency of 110.25 +/- 1.25 MHz. Over 100 hours of observations have been analyzed, 2 pulses were detected, the parameters of which are given below.
| UTC |
2024-07-17, 18:23:13.89665 |
2024-09-15, 14:22:59.60489 |
| MJD |
60508.7661331 |
60568.599301 |
| Pulse width |
0.990 s |
0.954 s |
| Peak flux |
9.0 Jy |
3.2 Jy |
Fluence |
8947 Jy ms |
3051 Jy ms |
| DM |
25 pc/cm^3 |
25 pc/cm^3 |
| SNR |
14.64 |
25.59 |
The PDF file with dynamic spectra and total pulses is available at the link:
plots.
