Astronomy:HESS J1857+0263
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| Nebula | |
|---|---|
| Pulsar wind nebula | |
| Observation data: J2000 epoch | |
| Right ascension | 18h 56m 50.8s[1] |
| Declination | ±2° 45′ 50.2″[1] |
| Distance | ~9000[2] pc |
| Constellation | Aquila |
| Physical characteristics | |
| Dimensions | 0.11° x 0.08°[3] |
HESS J1857+0263 is a pulsar wind nebula located approximately 9 kpc (29 kly) from Earth in the constellation of Aquila.
HESS J1857+0263 releases γ-rays in the range of 0.8−45 TeV.[2] It is most likely powered by PSR J1856+0245, a pulsar located nearby.[4]
References
- ↑ 1.0 1.1 Rousseau, R.; Grondin, M.-H.; Van Etten, A.; Lemoine-Goumard, M.; Bogdanov, S.; Hessels, J. W. T.; Kaspi, V. M.; Arzoumanian, Z. et al. (17 July 2012). "Fermi-LAT constraints on the pulsar wind nebula nature of HESS J1857+026". Astronomy & Astrophysics 544: A3. doi:10.1051/0004-6361/201118685. Bibcode: 2012A&A...544A...3R. https://www.aanda.org/articles/aa/abs/2012/08/aa18685-11/aa18685-11.html. Retrieved 3 June 2017.
- ↑ 2.0 2.1 Aleksić, J.; Ansoldi, S.; Antonelli, L. A.; Antoranz, P.; Babic, A.; Bangale, P.; Barres de Almeida, U.; Barrio, J. A. et al. (17 November 2014). "MAGIC reveals a complex morphology within the unidentified gamma-ray source HESS J1857+026". Astronomy & Astrophysics 571: A96. doi:10.1051/0004-6361/201423517. Bibcode: 2014A&A...571A..96M. https://www.aanda.org/articles/aa/abs/2014/11/aa23517-14/aa23517-14.html. Retrieved 3 June 2017.
- ↑ Aharonian, F.; Akhperjanian, A. G.; Barres de Almeida, U.; Bazer-Bachi, A. R.; Behera, B.; Beilicke, M.; Benbow, W.; Bernlöhr, K. et al. (January 2008). "HESS very-high-energy gamma-ray sources without identified counterparts". Astronomy and Astrophysics 477 (1): 353–363. doi:10.1051/0004-6361:20078516. Bibcode: 2008A&A...477..353A. https://www.aanda.org/articles/aa/abs/2008/49/aa8516-07/aa8516-07.html. Retrieved 3 June 2017.
- ↑ Hessels, J. W. T.; Nice, D. J.; Gaensler, B. M.; Kaspi, V. M.; Lorimer, D. R.; Champion, D. J.; Lyne, A. G.; Kramer, M. et al. (8 July 2008). "PSR J1856+0245: Arecibo Discovery of a Young, Energetic Pulsar Coincident with the TeV γ-Ray Source HESS J1857+026" (in en). The Astrophysical Journal Letters 682 (1): L41–L44. doi:10.1086/590908. ISSN 1538-4357. Bibcode: 2008ApJ...682L..41H.
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