HESS J1857+026
Appearance
Nebula | |
---|---|
Pulsar wind nebula | |
Observation data:J2000epoch | |
Right ascension | 18h56m50.8s[1] |
Declination | ±2° 45′ 50.2″[1] |
Distance | ~9000[2]pc |
Constellation | Aquila |
Physical characteristics | |
Dimensions | 0.11° x 0.08°[3] |
HESS J1857+026is apulsar wind nebulalocated approximately 9kpc(29kly) fromEarthin theconstellationofAquila.
HESS J1857+026 releasesγ-raysin the range of 0.8−45TeV.[2]It is most likely powered byPSR J1856+0245,apulsarlocated nearby.[4]
References
[edit]- ^abRousseau, R.; Grondin, M.-H.; Van Etten, A.; Lemoine-Goumard, M.; Bogdanov, S.; Hessels, J. W. T.; Kaspi, V. M.; Arzoumanian, Z.; Camilo, F.; Casandjian, J. M.; Espinoza, C. M.; Johnston, S.; Lyne, A. G.; Smith, D. A.; Stappers, B. W.; Caliandro, G. A. (17 July 2012)."Fermi-LAT constraints on the pulsar wind nebula nature of HESS J1857+026".Astronomy & Astrophysics.544:A3.arXiv:1206.3324.Bibcode:2012A&A...544A...3R.doi:10.1051/0004-6361/201118685.S2CID55797576.Retrieved3 June2017.
- ^abAleksić, J.; Ansoldi, S.; Antonelli, L. A.; Antoranz, P.; Babic, A.; Bangale, P.; Barres de Almeida, U.; Barrio, J. A.; Becerra González, J.; Bednarek, W.; et al. (17 November 2014)."MAGIC reveals a complex morphology within the unidentified gamma-ray source HESS J1857+026".Astronomy & Astrophysics.571:A96.arXiv:1401.7154.Bibcode:2014A&A...571A..96M.doi:10.1051/0004-6361/201423517.S2CID3857390.Retrieved3 June2017.
- ^Aharonian, F.; Akhperjanian, A. G.; Barres de Almeida, U.; Bazer-Bachi, A. R.; Behera, B.; Beilicke, M.; Benbow, W.; Bernlöhr, K.; Boisson, C.; Bolz, O.; et al. (January 2008)."HESS very-high-energy gamma-ray sources without identified counterparts".Astronomy and Astrophysics.477(1): 353–363.arXiv:0712.1173.Bibcode:2008A&A...477..353A.doi:10.1051/0004-6361:20078516.S2CID54009812.Retrieved3 June2017.
- ^Hessels, J. W. T.; Nice, D. J.; Gaensler, B. M.; Kaspi, V. M.; Lorimer, D. R.; Champion, D. J.; Lyne, A. G.; Kramer, M.; Cordes, J. M.; Freire, P. C. C.; Camilo, F.; Ransom, S. M.; Deneva, J. S.; Bhat, N. D. R.; Cognard, I.; Crawford, F.; Jenet, F. A.; Kasian, L.; Lazarus, P.; Leeuwen, J. van; McLaughlin, M. A.; Stairs, I. H.; Stappers, B. W.; Venkataraman, A. (8 July 2008). "PSR J1856+0245: Arecibo Discovery of a Young, Energetic Pulsar Coincident with the TeV γ-Ray Source HESS J1857+026".The Astrophysical Journal Letters.682(1): L41–L44.arXiv:0806.1200.Bibcode:2008ApJ...682L..41H.doi:10.1086/590908.ISSN1538-4357.S2CID16395083.