Search for pulsars in an area with coordinates 3h < α< 4h and +21o < δ< +42o
arXiv:2305.01409 · doi:10.1134/S1063772923020099
Abstract
On the Large Phased Array (LPA) of Lebedev Physics Institute (LPI), a search for pulsars outside the Galaxy plane was carried out in a 300 sq. deg area. The search with a sensitivity 5-10 times better than that of previously conducted surveys was at a frequency of 111 MHz. The search was carried out in the summed power spectra. With an accumulation equivalent to 100 hours of continuous observations for each point of the area, 5 known pulsars were detected with a signal-to-noise ratio (S/N) from 20 to 1300 in the first harmonic of the spectrum. Average profiles were obtained for the detected pulsars. Estimates of the peak and integral flux densities of the found pulsars are given for individual sessions and for the power spectra summarized over 5.5 years, obtained using the developed method based on measurements of the height of harmonics in the power spectrum. No new pulsars have been detected in the area. Apparently, when searching for pulsars in the area, we have approached the lower limit of the luminosity of the second pulsars. The completeness of the survey is at the level of 0.5 mJy.
published in Astronomy Reports, translated by Yandex translator with correction of scientific lexis, 7 pages, 3 figures, 2 tables
References in corpus (9)
- A New Electron Density Model for Estimation of Pulsar and FRB Distances
- The Green Bank Northern Celestial Cap Pulsar Survey - I: Survey Description, Data Analysis, and Initial Results
- The FAST Galactic Plane Pulsar Snapshot survey: I. Project design and pulsar discoveries
- Discovery of a radio emitting neutron star with an ultra-long spin period of 76 seconds
- A radio transient with unusually slow periodic emission
- The LOFAR Tied-Array All-Sky Survey (LOTAAS): Survey overview and initial pulsar discoveries
- Detection of new pulsars at the frequency 111 MHz
- Search and detection of pulsars in the monitoring observations at the frequency 111 MHz
- Search for pulsars in the summed power spectra at a frequency of 111 MHz