Measurements of the Crab Pulsar’s Giant Radio Pulse Amplitude Power-law Index Using Low-frequency Arecibo and Green Bank Telescope Observations
We report two low-frequency measurements of the power-law index for the amplitudes of giant radio pulses from the Crab pulsar. The two observations were taken with the Arecibo and Green Bank radio telescopes at center frequencies of 327 MHz and 350 MHz, respectively. We find best-fit values for the...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2023-01-01
|
| Series: | The Astrophysical Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/1538-4357/acca7f |
| _version_ | 1797695302327599104 |
|---|---|
| author | Fronefield Crawford T. Joseph W. Lazio Alexander McEwen Julia S. Deneva James M. Cordes Laura Spitler Ryan F. Trainor |
| author_facet | Fronefield Crawford T. Joseph W. Lazio Alexander McEwen Julia S. Deneva James M. Cordes Laura Spitler Ryan F. Trainor |
| author_sort | Fronefield Crawford |
| collection | DOAJ |
| description | We report two low-frequency measurements of the power-law index for the amplitudes of giant radio pulses from the Crab pulsar. The two observations were taken with the Arecibo and Green Bank radio telescopes at center frequencies of 327 MHz and 350 MHz, respectively. We find best-fit values for the differential power-law index β (where ${dN}/{dS}\propto {S}^{\beta }$ and S is the pulse amplitude) of −2.63 ± 0.05 and −3.6 ± 0.5 from the Arecibo and Green Bank data sets, respectively. Both values are broadly consistent with other values previously measured for the Crab pulsar at low radio frequencies. These reported values may be useful in future giant pulse studies of the Crab pulsar. |
| first_indexed | 2024-03-12T03:10:26Z |
| format | Article |
| id | doaj.art-a1acd4ef7eae457ca564f6cb353e8ba0 |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-12T03:10:26Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-a1acd4ef7eae457ca564f6cb353e8ba02023-09-03T14:28:02ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-0194814610.3847/1538-4357/acca7fMeasurements of the Crab Pulsar’s Giant Radio Pulse Amplitude Power-law Index Using Low-frequency Arecibo and Green Bank Telescope ObservationsFronefield Crawford0https://orcid.org/0000-0002-2578-0360T. Joseph W. Lazio1Alexander McEwen2https://orcid.org/0000-0001-5481-7559Julia S. Deneva3https://orcid.org/0000-0003-1226-0793James M. Cordes4https://orcid.org/0000-0002-4049-1882Laura Spitler5https://orcid.org/0000-0002-3775-8291Ryan F. Trainor6https://orcid.org/0000-0002-6967-7322Department of Physics and Astronomy, Franklin and Marshall College , P.O. Box 3003, Lancaster, PA 17604, USA ; fcrawfor@fandm.eduJet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Dr., M/S 67-201, Pasadena, CA 91107, USACenter for Gravitation, Cosmology and Astrophysics, Department of Physics, University of Wisconsin-Milwaukee , P.O. Box 413, Milwaukee, WI 53201, USAGeorge Mason University , 4400 University Dr., Fairfax, VA 22030, USACornell Center for Astrophysics and Planetary Science, and Department of Astronomy, Cornell University , Ithaca, NY 14853, USAMax-Planck-Institut für Radioastronomie (MPIfR) , Auf dem Hügel 69, D-53121, Bonn, GermanyDepartment of Physics and Astronomy, Franklin and Marshall College , P.O. Box 3003, Lancaster, PA 17604, USA ; fcrawfor@fandm.eduWe report two low-frequency measurements of the power-law index for the amplitudes of giant radio pulses from the Crab pulsar. The two observations were taken with the Arecibo and Green Bank radio telescopes at center frequencies of 327 MHz and 350 MHz, respectively. We find best-fit values for the differential power-law index β (where ${dN}/{dS}\propto {S}^{\beta }$ and S is the pulse amplitude) of −2.63 ± 0.05 and −3.6 ± 0.5 from the Arecibo and Green Bank data sets, respectively. Both values are broadly consistent with other values previously measured for the Crab pulsar at low radio frequencies. These reported values may be useful in future giant pulse studies of the Crab pulsar.https://doi.org/10.3847/1538-4357/acca7fPulsarsRadio transient sources |
| spellingShingle | Fronefield Crawford T. Joseph W. Lazio Alexander McEwen Julia S. Deneva James M. Cordes Laura Spitler Ryan F. Trainor Measurements of the Crab Pulsar’s Giant Radio Pulse Amplitude Power-law Index Using Low-frequency Arecibo and Green Bank Telescope Observations The Astrophysical Journal Pulsars Radio transient sources |
| title | Measurements of the Crab Pulsar’s Giant Radio Pulse Amplitude Power-law Index Using Low-frequency Arecibo and Green Bank Telescope Observations |
| title_full | Measurements of the Crab Pulsar’s Giant Radio Pulse Amplitude Power-law Index Using Low-frequency Arecibo and Green Bank Telescope Observations |
| title_fullStr | Measurements of the Crab Pulsar’s Giant Radio Pulse Amplitude Power-law Index Using Low-frequency Arecibo and Green Bank Telescope Observations |
| title_full_unstemmed | Measurements of the Crab Pulsar’s Giant Radio Pulse Amplitude Power-law Index Using Low-frequency Arecibo and Green Bank Telescope Observations |
| title_short | Measurements of the Crab Pulsar’s Giant Radio Pulse Amplitude Power-law Index Using Low-frequency Arecibo and Green Bank Telescope Observations |
| title_sort | measurements of the crab pulsar s giant radio pulse amplitude power law index using low frequency arecibo and green bank telescope observations |
| topic | Pulsars Radio transient sources |
| url | https://doi.org/10.3847/1538-4357/acca7f |
| work_keys_str_mv | AT fronefieldcrawford measurementsofthecrabpulsarsgiantradiopulseamplitudepowerlawindexusinglowfrequencyareciboandgreenbanktelescopeobservations AT tjosephwlazio measurementsofthecrabpulsarsgiantradiopulseamplitudepowerlawindexusinglowfrequencyareciboandgreenbanktelescopeobservations AT alexandermcewen measurementsofthecrabpulsarsgiantradiopulseamplitudepowerlawindexusinglowfrequencyareciboandgreenbanktelescopeobservations AT juliasdeneva measurementsofthecrabpulsarsgiantradiopulseamplitudepowerlawindexusinglowfrequencyareciboandgreenbanktelescopeobservations AT jamesmcordes measurementsofthecrabpulsarsgiantradiopulseamplitudepowerlawindexusinglowfrequencyareciboandgreenbanktelescopeobservations AT lauraspitler measurementsofthecrabpulsarsgiantradiopulseamplitudepowerlawindexusinglowfrequencyareciboandgreenbanktelescopeobservations AT ryanftrainor measurementsofthecrabpulsarsgiantradiopulseamplitudepowerlawindexusinglowfrequencyareciboandgreenbanktelescopeobservations |