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RX J0852.0−4622

March 11, 2023

RX J0852.0−4622 (also known as G266.2−1.2) is a supernova remnant. The remnant is located in the southern sky in the constellation Vela ("sail"), and sits (in projection) inside the much larger and older Vela Supernova Remnant. For this reason, RX J0852.0−4622 is often referred to as Vela Junior (Vela Jr.).[1][2][3]

RX J0852.0−4622 or Vela Junior
Event typeSupernova remnant 
SN
Date1998
ConstellationVela
Right ascension08h 52m
Declination−46° 22′
EpochJ2000.0
Galactic coordinates286.9460 +42.4568 (34" W, 10" S)
Distance700 ly
RemnantCXOU J085201.4-461753
Notable featuresCould be associated with PSR J0855−4644.
central object in SNR RX J0852.0−4622 = AX J0851.9−4617.
Other designationsSNR G266.2-01.2, SNR G266.3-01.2, 3FHL J0851.9-4620e, RX J0852.0-4622, 2FGL J0851.7-4635, 3FGL J0852.7-4631e, 2FHL J0852.8-4631, 2FHL J0852.8-4631e
[edit on Wikidata]

It was found in 1998[4] when gamma ray emissions from the decay of 44Ti nuclei were discovered using the Imaging Compton Telescope (COMPTEL).

The distance to this object is controversial, but some scientists argue that the supernova remnant is only about 650–750 light-years away, and exploded comparatively recently (as seen from Earth), perhaps within the last 800 years. If the remnant is indeed young and nearby, its corresponding supernova should have been visible from the Earth around 1271 CE. Written accounts from Japan in late 1271 CE and early 1272 CE describe what may have been sightings of the supernova over the horizon near Kamakura, Japan in the early-morning hours of 13 September 1271.[4][5][6][7]

The central compact object (CCO) was discovered in 2001.[8] In the initial Chandra X-ray image and deeper images thereafter, no pulsations were detected from the compact remnant, which is believed to be the neutron star CXOU J085201.4-461753.

References

  1. ^ SNRcat: Supernova Remnant G266.2-01.2
  2. ^ Michelle Starr: The Rings of Ancient Trees May Hold Tales of Epic Space Explosions, on: sciencealert, 14 November 2020
  3. ^ Allen, G. E.; Chow, K.; Delaney, T.; Filipović, M. D.; Houck, J. C.; Pannuti, T. G.; Stage, M. D. (2014). "ON THE EXPANSION RATE, AGE, AND DISTANCE OF THE SUPERNOVA REMNANT G266.2–1.2 (Vela Jr.)". The Astrophysical Journal. 798 (2): 82. doi:10.1088/0004-637X/798/2/82. hdl:1721.1/94531. S2CID 11391141.
  4. ^ a b Iyudin, A. F.; Schönfelder, V.; Bennett, K.; Bloemen, H.; Diehl, R.; Hermsen, W.; Lichti, G. G.; Van Der Meulen, R. D.; Ryan, J.; Winkler, C. (1998). "Emission from 44Ti associated with a previously unknown Galactic supernova". Nature. 396 (6707): 142–144. Bibcode:1998Natur.396..142I. doi:10.1038/24106. S2CID 4430526.
  5. ^ Aschenbach, B. (1998). "Discovery of a young nearby supernova remnant" (PDF). Nature. 396 (6707): 141–142. Bibcode:1998Natur.396..141A. doi:10.1038/24103. S2CID 4426317.
  6. ^ "Polynesian origins of the Maori in New Zealand and the supernova RX J0852.0-4622". February 2019. Retrieved 30 May 2022. {{cite journal}}: Cite journal requires |journal= (help)
  7. ^ "Footprints of the newly discovered Vela supernova in Antarctic Ice Cores". February 2019. Retrieved 27 September 2020. {{cite journal}}: Cite journal requires |journal= (help)
  8. ^ Pavlov, G. G.; Sanwal, D.; Kiziltan, B.; Gairmire, G. P. (2001). "The Compact Central Object in the RX J0852.0−4622 Supernova Remnant". The Astrophysical Journal. 559 (2): L131. arXiv:astro-ph/0108150. Bibcode:2001ApJ...559L.131P. doi:10.1086/323975. S2CID 8439326.

External links

  • Iyudin, A. F; Aschenbach, B; Becker, W; Dennerl, K; Haberl, F (2005). "XMM-Newton observations of the supernova remnant RX J0852.0-4622/GRO J0852-4642". Astronomy & Astrophysics. 429: 225–234. arXiv:astro-ph/0410372. Bibcode:2005A&A...429..225I. doi:10.1051/0004-6361:20041779. S2CID 119450449.
  • "NAME Vela Jr SN". SIMBAD. Centre de données astronomiques de Strasbourg.

March 11, 2023
j0852, 4622, also, known, g266, supernova, remnant, remnant, located, southern, constellation, vela, sail, sits, projection, inside, much, larger, older, vela, supernova, remnant, this, reason, often, referred, vela, junior, vela, vela, juniorevent, typesupern. RX J0852 0 4622 also known as G266 2 1 2 is a supernova remnant The remnant is located in the southern sky in the constellation Vela sail and sits in projection inside the much larger and older Vela Supernova Remnant For this reason RX J0852 0 4622 is often referred to as Vela Junior Vela Jr 1 2 3 RX J0852 0 4622 or Vela JuniorEvent typeSupernova remnant SNDate1998ConstellationVelaRight ascension08h 52mDeclination 46 22 EpochJ2000 0Galactic coordinates286 9460 42 4568 34 W 10 S Distance700 lyRemnantCXOU J085201 4 461753Notable featuresCould be associated with PSR J0855 4644 central object in SNR RX J0852 0 4622 AX J0851 9 4617 Other designationsSNR G266 2 01 2 SNR G266 3 01 2 3FHL J0851 9 4620e RX J0852 0 4622 2FGL J0851 7 4635 3FGL J0852 7 4631e 2FHL J0852 8 4631 2FHL J0852 8 4631e edit on Wikidata It was found in 1998 4 when gamma ray emissions from the decay of 44Ti nuclei were discovered using the Imaging Compton Telescope COMPTEL The distance to this object is controversial but some scientists argue that the supernova remnant is only about 650 750 light years away and exploded comparatively recently as seen from Earth perhaps within the last 800 years If the remnant is indeed young and nearby its corresponding supernova should have been visible from the Earth around 1271 CE Written accounts from Japan in late 1271 CE and early 1272 CE describe what may have been sightings of the supernova over the horizon near Kamakura Japan in the early morning hours of 13 September 1271 4 5 6 7 The central compact object CCO was discovered in 2001 8 In the initial Chandra X ray image and deeper images thereafter no pulsations were detected from the compact remnant which is believed to be the neutron star CXOU J085201 4 461753 References Edit SNRcat Supernova Remnant G266 2 01 2 Michelle Starr The Rings of Ancient Trees May Hold Tales of Epic Space Explosions on sciencealert 14 November 2020 Allen G E Chow K Delaney T Filipovic M D Houck J C Pannuti T G Stage M D 2014 ON THE EXPANSION RATE AGE AND DISTANCE OF THE SUPERNOVA REMNANT G266 2 1 2 Vela Jr The Astrophysical Journal 798 2 82 doi 10 1088 0004 637X 798 2 82 hdl 1721 1 94531 S2CID 11391141 a b Iyudin A F Schonfelder V Bennett K Bloemen H Diehl R Hermsen W Lichti G G Van Der Meulen R D Ryan J Winkler C 1998 Emission from 44Ti associated with a previously unknown Galactic supernova Nature 396 6707 142 144 Bibcode 1998Natur 396 142I doi 10 1038 24106 S2CID 4430526 Aschenbach B 1998 Discovery of a young nearby supernova remnant PDF Nature 396 6707 141 142 Bibcode 1998Natur 396 141A doi 10 1038 24103 S2CID 4426317 Polynesian origins of the Maori in New Zealand and the supernova RX J0852 0 4622 February 2019 Retrieved 30 May 2022 a href Template Cite journal html title Template Cite journal cite journal a Cite journal requires journal help Footprints of the newly discovered Vela supernova in Antarctic Ice Cores February 2019 Retrieved 27 September 2020 a href Template Cite journal html title Template Cite journal cite journal a Cite journal requires journal help Pavlov G G Sanwal D Kiziltan B Gairmire G P 2001 The Compact Central Object in the RX J0852 0 4622 Supernova Remnant The Astrophysical Journal 559 2 L131 arXiv astro ph 0108150 Bibcode 2001ApJ 559L 131P doi 10 1086 323975 S2CID 8439326 External links EditIyudin A F Aschenbach B Becker W Dennerl K Haberl F 2005 XMM Newton observations of the supernova remnant RX J0852 0 4622 GRO J0852 4642 Astronomy amp Astrophysics 429 225 234 arXiv astro ph 0410372 Bibcode 2005A amp A 429 225I doi 10 1051 0004 6361 20041779 S2CID 119450449 NAME Vela Jr SN SIMBAD Centre de donnees astronomiques de Strasbourg Retrieved from https en wikipedia org w index php title RX J0852 0 4622 amp oldid 1136375699, wikipedia, wiki, book, books, library,

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