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Vela Jr.:超新星喷发团块与超新星遗骸的互动
Vela Jr.: Ejecta-Clump Interaction in the Vela Supernova Remnant

DOI: 10.12677/AAS.2013.12005, PP. 32-37

Keywords: 星际介质(RX J0852-4622, Vela Jr.);超新星遗骸(Vela Jr., Vela SNR, SN1572);流体力学;不稳定性;冲击波
ISM (RX J0852.0-4622
, Vela Jr.), Supernova Remnants (Vela Jr., Vela SNR, SN1572), Hydrodynamics, Instabilities, Shock Waves

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Abstract:

重迭在船帆座超新星遗骸(Vela supernova remnant)视线上的ROSAT X射线源RX J0852.0-4622,或称Vela Jr.,因其在1.3千电子伏的波段上呈现圆壳外观和检测出44Tiγ射线衰变线所以被认为是新发现的年轻超新星遗骸。然而,观测证据指出Vela Jr.应属于船帆座超新星遗骸的一部份而非独立的物体。二维气体动力学模拟显示,超新星快速的高密度喷发气体物(子弹)可以影响遗骸的外围,产生类似于Vela Jr.的圆环结构。估计Vela Jr.的能量为<0.3 × 1049 erg,相当于1700 km/s<~0.1M的超新星喷发物所注入的动能。我们认为子弹生成最有可能的机制是镍泡效应(nickel bubble effect)。我们预测子弹应该产生辐射,而船帆座超新星遗骸在低X射线亮度的波段上也应存在其它类似的结构。
The ROSAT source RX J0852.0-4622, or Vela Jr., superposed on the Vela supernova remnant, has been identified as a separate young supernova remnant based on its shell-like appearance in X-ray > 1.3 keV and on its detection as a source of the

References

[1]  B. Aschenbach. Discovery of a young nearby supernova remnant. Nature, 1998, 396: 141-142.
[2]  A. N. Cha, K. R. Sembach and A. C. Danks. The distance to the vela supernova remnant. The Astrophysical Journal, 1999, 515(1): L25.
[3]  R. Strom, H. M. Johnston, F. Verbunt and B. Aschenbach. A radio-emitting X-ray “bullet” ejected by the Vela supernova. Nature, 1995, 373: 590.
[4]  B. Aschenbach, R. Egger and J. Trümper. Discovery of explosion fragments outside the Vela supernova remnant shock-wave boundary. Nature, 1995, 373: 587-590.
[5]  A. F. Iyudin, et al. Emission from 44Ti associated with a previously unknown Galactic supernova. Nature, 1998, 396: 142- 144.
[6]  B. Aschenbach, A. F. Iyudin and V. Schonelder. Constraints of age, distance and progenitor of the supernova remnant RX J0852.0-4622/GRO J0852-4642. Astronomy and Astrophysics, 1999, 350: 997-1006.
[7]  C. P. Burgess, K. Zuber. Footprints of the newly discovered Vela supernova in Antarctic ice cores? Astroparticle Physics, 2000, 14(1): 1.
[8]  J. A. Combi, G. E. Romero and P. Benaglia. Radio detection of the supernova remnant RX J0852.0-4622. The Astrophysical Journal, 1999, 519(2): L177.
[9]  G. E. Allen, C. B. Markwardt and R. Petre. The high-energy RXTE X-ray spectrum of the recently-discovered remnent RX J0852-4622. Bulletin of the American Astronomical Society. 1999, 31: 862.
[10]  P. Slane, J. P. Hughes, R. J. Edgar, P. P. Plucinsky, E. Miyata, H. Tsunemi and B. Aschenbach. RX J0852.0-4622: Another nonther- mal shell-type supernova remnant (G266.2-1.2). The Astrophy- sical Journal, 2001, 548(2): 814.
[11]  V. Schonfelder, et al. 44Ti gamma-ray line emission from Cas A and RXJ0852-4622/GROJ0852-4642. In: M. L. McConnell, J. M. Ryan, Eds., AIP Conference Proceedings 510, 5th Compton Symposium, AIP, Melville, 2000: 54-59.
[12]  R. Petre, U. Hwang and E. Allen. Evidence for cosmic-ray acceleration in supernova remnants from X-ray observations. Advances in Space Research, 2001, 27(4): 647-652.
[13]  H. Tsunemi, E. Miyata and B. Aschenbach. Spectroscopic study of the Vela-shrapnel. Publications of the Astronomical Society of Japan, 1999, 51(5): 711-717.
[14]  P. Slane, J. P. Hughes, R. J. Edgar, P. P. Plucinsky, E. Miyata, H. Tsunemi and B. Aschenbach. RX J0852.0-4622: Another nonther- mal shell-type supernova remnant (G266.2-1.2). The Astro- physical Journal, 2001, 548(2): 814.
[15]  J. S. Warren, J. P. Hughes and P. O. Slane. Revealing new physical structures in the supernova remnant N63A through chandra imaging spectroscopy. The Astrophysical Journal, 2003, 583(1): 260.
[16]  C.-Y. Wang, R. A. Chevalier. Instabilities and clumping in type Ia supernova remnants. The Astrophysical Journal, 2001, 549(2): 1119.
[17]  C.-Y. Wang, R. A. Chevalier. Bullets in a core-collapse super- nova remnant: The vela remnant. The Astrophysical Journal, 2002, 574(1): 155.
[18]  J. M. Stone, M. L. Norman. ZEUS-2D: A radiation magnetohy- drodynamics code for astrophysical flows in two space dimen- sions. I-The hydrodynamic algorithms and tests. Astrophysical Journal Supplement Series, 1992, 80(2): 753-790.
[19]  V. V. Dwarkadas, R. A. Chevalier. Interaction of type Ia super- novae with their surroundings. The Astrophysical Journal, 1998, 497(2): 807.
[20]  R. I. Klein, C. F. McKee and P. Colella. On the hydrodynamic interaction of shock waves with interstellar clouds. 1: Nonradia- tive shocks in small clouds. The Astrophysical Journal, 1994, 420(1): 213-216.
[21]  U. Hwang, E. V. Gotthelf. X-Ray emission-line imaging and spectroscopy of tycho’s supernova remnant. The Astrophysical Journal, 1997, 475(2): 665.
[22]  A. R. Duncan, D. A. Green. The supernova remnant RX J0852.0- 4622: Radio characteristics and implications for SNR statistics. Astronomy and Astrophysics, 2000, 364: 732-740.
[23]  F. Bocchino, A. Maggio and S. Sciortino. ROSAT PSPC obser- vation of the NE region of the Vela supernova remnant III. The two-component nature of the X-ray emission and its implications on the ISM. Astronomy and Astrophysics, 1999, 342(3): 839-853.
[24]  W. Chen, N. Gehrels. The progenitor of the new COMPTEL/ ROSAT supernova remnant in vela. The Astrophysical Journal, 1999, 514(2): L103.
[25]  Cohen, G. Sheldon, Dunn and M. Louise. The lymphocytologists; abell and schenck on anaphylaxis. Allergy and Asthma Proceed- ings, 1991, 12(3): 199-205.
[26]  J. M. Blondin, K. J. Borkowski and S. P. Reynolds. Dynamics of Fe bubbles in young su-pernova remnants. The Astrophysical Journal, 2001, 557(2): 782.
[27]  H. Li, R. McCray and R. A. Sunyaev. Iron, cobalt, and nickel in SN 1987A. The Astrophysical Journal, 1993, 419: 824.
[28]  H. Tsunemi, E. Miyata, B. schenbach, J. Hiraga and D. Akutsu. Over-abundance of calcium in the young SNR RX J0852-4622: evidence of over-production of 44Ti. Publications of the Astro- nomical Society of Japan, 2000, 52: 887-893.
[29]  C.-Y. Wang. Clump development by the nickel bubble effect in supernovae. The Astrophysical Journal, 2005, 626(1): 183.
[30]  C.-Y. Wang. Nickel Bubble expansion in type Ia supernovae: Adiabatic solutions. The Astrophysical Journal, 2008, 686(1): 337.
[31]  C.-Y. Wang. Rayleigh–Taylor instabilities in Type Ia supernova remnants undergoing cosmic ray particle acceleration-low adia- batic index solutions. Monthly Notices of the Royal Astronomi- cal Society, 2011, 415(1): 83-92.
[32]  S. Mereghetti. The X-ray sources at the center of the supernova remnant RX J0852.0-4622. The Astrophysical Journal, 2001, 548(2): L213.
[33]  G. G. Pavlov, D. Sanwal, B. Kiziltan and G. P. Garmire. The compact central object in the RX J0852.0-4622 supernova remnant. The Astrophysical Journal, 2001, 559(2): L131.
[34]  A. F. Iyudin, et al. XMM-Newton observations of the supernova remnant RX J0852.0-4622/GRO J0852-4642. Astron-omy and Astrophysics, 2005, 429(1): 225-234.

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