Diffuse X-ray emission around an ultraluminous X-ray pulsar
نویسندگان
چکیده
منابع مشابه
Radio emission from an ultraluminous x-ray source.
The physical nature of ultraluminous x-ray sources is uncertain. Stellar-mass black holes with beamed radiation and intermediate black holes with isotropic radiation are two plausible explanations. We discovered radio emission from an ultraluminous x-ray source in the dwarf irregular galaxy NGC 5408. The x-ray, radio, and optical fluxes as well as the x-ray spectral shape are consistent with be...
متن کاملUltraluminous X-ray Sources
The Chandra X-Ray Observatory was used to image the collisional ring galaxy Arp 147 for 42 ks. We detect nine X-ray sources with luminosities in the range of (1.4–7) × 1039 erg s−1 (assuming that the sources emit isotropically) in or near the blue knots of star formation associated with the ring. A source with an X-ray luminosity of 1.4 × 1040 erg s−1 is detected in the nuclear region of the in...
متن کاملX-ray and Gamma-ray Emission from Pulsar Magnetospheres
For polar-cap models based on electromagnetic cascades induced by curvature radiation of beam particles we calculate broad-band high-energy spectra of pulsed emission expected for classical (∼ 10 G) and millisecond pulsars (∼ 10 G). The spectra are a superposition of curvature and synchrotron radiation components and most of their detailed features depend significantly on the magnetic field str...
متن کاملSearches for diffuse X - ray emission around millisecond pulsars : An X - ray nebula associated with PSR J 2124 − 3358
We report on diffuse X-ray emission associated with the nearby solitary millisecond pulsar PSR J2124−3358 detected with XMM-Newton and Chandra. The emission extends from the pulsar to the northwest by ∼ 0.5 arcmin. The spectrum of the nebular emission can be modeled with a power-law of photon index 2.2 ± 0.4, in line with the emission originating from accelerated particles in the post shock flo...
متن کاملDosimetry of Occupational Radiation around Panoramic X-ray Apparatus
Background: Panoramic imaging is one of the most common imaging methods in dentistry. Regarding the side-effects of ionizing radiation, it is necessary to survey different aspects and details of panoramic imaging. In this study, we compared the absorbed x-ray dose around two panoramic x-ray units: PM 2002 CC Proline (Planmeca, Helsinki, Finland) and Cranex Tome (Soredex, Helsinki, Finland).<br ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature Astronomy
سال: 2019
ISSN: 2397-3366
DOI: 10.1038/s41550-019-0903-z