Diagnosing pulsar winds in black-widow, redback, and other binary millisecond pulsar systems
Binary systems composed of a recycled millisecond pulsar and a stellar companion in close orbit could be excellent sites to diagnose pulsar winds. In such systems, the pulsar outflow irradiates and heats up the companion atmosphere, which can lead to the observation of strong day/night modulations i...
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| Formato: | Articulo Preprint |
| Lenguaje: | Inglés |
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2019
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/125018 |
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I19-R120-10915-125018 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Astronómicas Astronomía astroparticle physics pulsars: general acceleration of particles |
| spellingShingle |
Ciencias Astronómicas Astronomía astroparticle physics pulsars: general acceleration of particles Zilles, Anne Kotera, Kumiko Rohrmann, René Althaus, Leandro Gabriel Diagnosing pulsar winds in black-widow, redback, and other binary millisecond pulsar systems |
| topic_facet |
Ciencias Astronómicas Astronomía astroparticle physics pulsars: general acceleration of particles |
| description |
Binary systems composed of a recycled millisecond pulsar and a stellar companion in close orbit could be excellent sites to diagnose pulsar winds. In such systems, the pulsar outflow irradiates and heats up the companion atmosphere, which can lead to the observation of strong day/night modulations in temperature. We demonstrate with particle shower simulations that the particle energy of the wind affects the heating depth in the atmosphere: the wind heat can be deposited above or below the photosphere, leading to different signatures in the observed spectra. We apply our method to four specific systems: We find that systems with cool night side companions showing strong temperature variations can give interesting lower limits on the particle energy in the winds. In particular, if the companion night side of PSR B1957+20 were to be suddenly irradiated, deep heating would only take place if particles with energy > 100 TeV were present. Observational evidence of deep heating in this system thus suggests that i) such particles exist in the pulsar wind and/or ii) binary evolution non-trivially takes the companion to the observed temperature asymmetry. Besides, the observed temperature difference can be maintained only with particle energies of the order of 100 MeV. |
| format |
Articulo Preprint |
| author |
Zilles, Anne Kotera, Kumiko Rohrmann, René Althaus, Leandro Gabriel |
| author_facet |
Zilles, Anne Kotera, Kumiko Rohrmann, René Althaus, Leandro Gabriel |
| author_sort |
Zilles, Anne |
| title |
Diagnosing pulsar winds in black-widow, redback, and other binary millisecond pulsar systems |
| title_short |
Diagnosing pulsar winds in black-widow, redback, and other binary millisecond pulsar systems |
| title_full |
Diagnosing pulsar winds in black-widow, redback, and other binary millisecond pulsar systems |
| title_fullStr |
Diagnosing pulsar winds in black-widow, redback, and other binary millisecond pulsar systems |
| title_full_unstemmed |
Diagnosing pulsar winds in black-widow, redback, and other binary millisecond pulsar systems |
| title_sort |
diagnosing pulsar winds in black-widow, redback, and other binary millisecond pulsar systems |
| publishDate |
2019 |
| url |
http://sedici.unlp.edu.ar/handle/10915/125018 |
| work_keys_str_mv |
AT zillesanne diagnosingpulsarwindsinblackwidowredbackandotherbinarymillisecondpulsarsystems AT koterakumiko diagnosingpulsarwindsinblackwidowredbackandotherbinarymillisecondpulsarsystems AT rohrmannrene diagnosingpulsarwindsinblackwidowredbackandotherbinarymillisecondpulsarsystems AT althausleandrogabriel diagnosingpulsarwindsinblackwidowredbackandotherbinarymillisecondpulsarsystems |
| bdutipo_str |
Repositorios |
| _version_ |
1764820451421323266 |