Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/32211
DC Field | Value | Language |
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dc.contributor.author | Pol, Nihan | en_US |
dc.contributor.author | Burke-Spolaor, Sarah | en_US |
dc.contributor.author | Hurley-Walker, Natasha | en_US |
dc.contributor.author | Blumer, Harsha | en_US |
dc.contributor.author | Johnston, Simon | en_US |
dc.contributor.author | Keith, Michael | en_US |
dc.contributor.author | Keane, Evan F. | en_US |
dc.contributor.author | BURGAY, MARTA | en_US |
dc.contributor.author | POSSENTI, ANDREA | en_US |
dc.contributor.author | Petroff, Emily | en_US |
dc.contributor.author | Bhat, N. D. Ramesh | en_US |
dc.date.accessioned | 2022-06-07T12:51:43Z | - |
dc.date.available | 2022-06-07T12:51:43Z | - |
dc.date.issued | 2021 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/32211 | - |
dc.description.abstract | We present the discovery and timing of the young (age ∼28.6 kyr) pulsar PSR J0837-2454. Based on its high latitude (b = 9°8) and dispersion measure (DM = 143 pc cm<SUP>-3</SUP>), the pulsar appears to be at a z-height of >1 kpc above the Galactic plane, but near the edge of our Galaxy. This is many times the observed scale height of the canonical pulsar population, which suggests this pulsar may have been born far out of the plane. If accurate, the young age and high z-height imply that this is the first pulsar known to be born from a runaway O/B star. In follow-up imaging with the Australia Telescope Compact Array (ATCA), we detect the pulsar with a flux density S<SUB>1400</SUB> = 0.18 ± 0.05 mJy. We do not detect an obvious supernova remnant around the pulsar in our ATCA data, but we detect a colocated, low-surface-brightness region of ∼1°5 extent in archival Galactic and Extragalactic All-sky MWA Survey data. We also detect colocated Hα emission from the Southern Hα Sky Survey Atlas. Distance estimates based on these two detections come out to ∼0.9 kpc and ∼0.2 kpc, respectively, both of which are much smaller than the distance predicted by the NE2001 model (6.3 kpc) and YMW model (>25 kpc) and place the pulsar much closer to the plane of the Galaxy. If the pulsar/remnant association holds, this result also highlights the inherent difficulty in the classification of transients as "Galactic" (pulsar) or "extragalactic" (fast radio burst) toward the Galactic anticenter based solely on the modeled Galactic electron contribution to a detection. | en_US |
dc.language.iso | eng | en_US |
dc.title | The Location of Young Pulsar PSR J0837-2454: Galactic Halo or Local Supernova Remnant? | en_US |
dc.identifier.doi | 10.3847/1538-4357/abe70d | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-4357/abe70d | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 911 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 121 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL | en_US |
dc.identifier.adsbibcode | 2021ApJ...911..121P | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Cagliari | - |
crisitem.author.dept | O.A. Cagliari | - |
crisitem.author.orcid | 0000-0002-8265-4344 | - |
crisitem.author.orcid | 0000-0001-5902-3731 | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
Appears in Collections: | 1.01 Articoli in rivista |
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File | Description | Size | Format | |
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Pol2021_editorial.pdf | Pdf editoriale | 1.33 MB | Adobe PDF | View/Open |
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