行星狀星雲(Planetary Nebulae)乃是中、小質量恆星演化到末期的必然結果,
而其複雜的結構正好提供我們一個理想的天文物理實驗室; 尤其是近年來天文儀器的進步,
更是使得行星狀星雲的研究進展非常迅速。
郭新(Sun Kwok)在1978年提出交互作用恆星風模型,
當時他預測行星狀星雲將有較暗的光暈存在。但是目前在44個行星狀星雲中,
只有找到66% 的行星狀星雲有光暈的存在。 對於行星狀星雲而言,
光暈的存在正是意味著行星狀星雲的起源,
我們唯有藉著行星狀星雲的光暈才能夠了解行星狀星雲之前的演化過程。
由於行星狀星雲的光暈是紅巨星或是漸進巨星分支
時質量損失的過程,
我們分別利用南半天球的Hα 巡天觀測以及一米望遠鏡(LOT)針對光暈結構進行Hα 的窄波段觀測。
在這些觀測中, 我們藉著104個比以往還要大的行星狀星雲光暈結構,
成功的證實了交互作用恆星風模型的預測;
還找到了其中6個行星狀星雲正與星際介質進行交互作用以及它們所形成的特徵結構。
不僅僅如此, 我們利用測得光暈的流量來估計其質量的大小。
我們也發現光暈與行星狀星雲在形態上並沒有什麼相關性, 這與理論上的推測相當吻合。
在未來我們將會藉由其他高解析的望遠鏡對於這些與星際介質交互作用的行星狀星雲進行觀測,
以期獲得更多關於這些特徵結構的資料。

Planetary nebulae mark the endpoint of stellar evolution. The complex structures of Planetary Nebulae can offer a perfect astrophysical Lab. We think that better instruments make the study of Planetary Nebulae quickly.
Prof.. Sun Kwok suggest Interactive Stellar Wind Model in 1978.He forecasted that there are faint halos surrounding Planetary Nebulae. People had studied 66% Planetary Nebulae were found to have extended halos. The meaning of halo is the origin of Planetary Nebulae. We can get more information about the evolution before Planetary Nebulae by the faint halos.
We use the database of SHASSA and observe the structure of halo with LOT in Hα.
In the observations, we had found the faint halo in 104 Planetary Nebulae and discover the characteristic structures interactive with Interstellar Medium(ISM) in 6 Planetary Nebulae.
We find there is no correlate with the halos and the morphology of Planetary Nebulae. It is similar with the forecast of theory. Besides, we detected the mass of halos of Planetary Nebulae by the flux of images. We will get more time to observe the structures interactive with ISM by high-resolution telescopes

Acker, Agnes; Marcout, James; Ochsenbein, Francois; Stenholm, Bjorn; Tylenda, Romuald., 1992, secg, book.A.
Acker, A.,1997, IAUS, 180, 10A
Balick, Bruce; Preston, Heather L.; Icke, Vincent.,1987, AJ, 94, 1641B
Balick, Bruce; Gonzalez, Guillermo; Frank, Adam; Jacoby, George., 1992, APJ, 392, 582B
Balick, Bruce; Rugers, M.; Terzian, Yervant; Chengalur, Jayaram N., APJ, 1993, 411, 778B
Balick, Bruce; Perinotto, M.; Maccioni, A.; Terzian, Yervant; Hajian, A., 1994, APJ, 424, 800B
Balick, Bruce; Alexander, J.; Hajian, Arsen R.; Terzian, Yervant; Perinotto, Mario; Patriarchi, P., 1998, AJ, 116, 360B
Balick, Bruce; Frank, Adam.,2002, ARAA, 40, 439B
Boffi, Francesca R.; Stanghellini, Letizia., 1994, A&A, 284, 248B
Chu, You-Hua; Jacoby, George H.; Arendt, Richard., 1987, APJS, 64, 529C
Chu, You-Hua., 1989, IAUS, 131, 105C
Chu, You-Hua; Guerrero, Martin A.; Gruendl, Robert A.; Williams, Rosa M.; Kaler, James B., 2001, APJ, 553L, 69C
Corradi, R. L. M.; Schwarz, H. E., 1995, A&A, 293, 871C
Corradi, R. L. M.; Manso, R.; Mampaso, A.; Schwarz, H. E., 1996, A&A, 313, 913C
Corradi, R. L. M.; Schonberner, D.; Steffen, M.; Perinotto, M., A&A, 2000, 354, 1071C
Corradi, Romano L. M.; Livio, Mario; Balick, Bruce; Munari, Ulisse; Schwarz, Hugo E. , 2001, APJ, 553, 211C
Dgani, Ruth; Soker, Noam., 1998, APJ, 495, 337D
Fibelman,W.A.,1999, APJ, 514, 296
Gaustad, John E.; McCullough, Peter R.; Rosing, Wayne; Van Buren, Dave.,2001, PASP, 113, 1326G
Gorny, S. K.; Schwarz, H. E.; Corradi, R. L. M.; Van Winckel, H., 1999, A&AS, 136, 145G
Garcia-Segura, G.; Lopez, J. A.,2000, APJ, 544, 336G
Garcia-Segura, G.; Franco, J.; Lopez, J. A.; Langer, N.; Rozyczka, M., 2002,RMxAC, 12, 117G
Guerrero, M. A.; Manchado, A., 1999, APJ, 522, 378G
Heap, S. R.; Boggess, A.; Holm, A.; Klinglesmith, D. A.; Sparks, W.; West, D.; Wu, C. C.; Boksenberg, A.; Willis, A.; Wilson,R., 1978 ,Nature, 275, 385H
Henry, R. B. C.; Kwitter, K. B.; Dufour, R. J., 1999, APJ, 517, 782H
Hua, C. T.; Grundseth, B.; Maucherat, A. J.,1993, A&AS, 101, 541H
Hua, C. T.; Kwok, S.1999 , A&AS ,138 ,275H
Hummer, D. G.; Storey, P. J. MNRAS, 224, 801H.
Hyung, Siek; Aller, Lawrence H.; Feibelman, Walter A., 1994, PASP, 106, 745H
Hyung, Siek; Aller, Lawrence H. H., 1995,MNRAS, 273, 958H
Hyung, Siek; Aller, Lawrence H. H., 1995,MNRAS, 273, 973H
Jewitt, D. C.; Danielson, G. E.; Kupferman, P. N., 1986, APJ,302,727J
Kastner, Joel H.; Gatley, Ian; Merrill, K. M.; Probst, R.; Weintraub, David.,1994, APJ, 421, 600K
Kastner, Joel H.; Soker, Noam; Vrtilek, Saeqa D.; Dgani, Ruth., 2000, APJ, 545L, 57K
Kastner, Joel H.; Vrtilek, Saeqa D.; Soker, Noam., 2001, APJ, 550L, 189K
Kharchenko, N. V., 2001, KFNT, 17, 409K
Kwok, S.; Purton, C. R.; Fitzgerald, P. M., 1978,APJ, 219L, 125K
Kwok,S., 2000, The Origin and Evolution of Planetary Nebulae
Lame, Nancy Joanne; Pogge, Richard W., 1996, AJ, 111, 2320L
Manchado, Arturo; Villaver, Eva; Stanghellini, Letizia; Guerrero, Martin A., 2000, astro-ph, 0002073
Martin, J.; Xilouris, K.; Soker, N., 2002, A&A, 391, 689M
McCullough, Peter R.; Bender, Chad; Gaustad, John E.; Rosing, Wayne; Van Buren, Dave., 2001, AJ, 121, 1578M
Meixner, Margaret., Asymmetrical Planetary Nebulae II: From Origins to Microstructures, ASP Conference Series, Vol. 199. Edited by J. H. Kastner, N. Soker, and S. Rappaport. ISBN: 1-58381-026-9, 2000, p. 135
Meaburn, J.; Walsh, J. R., 1989, A&A, 223, 277M
Meaburn, J.; Lopez, J. A.; Noriega-Crespo, A., 2000, APJS, 128, 321M
Moreno-Corral, M.; de La Fuente, E.; Gutierrez, F., 1998, RMxAA, 34, 117M
O''dell, C. R. , 1998, AJ, 116, 1346O
Pascoli, G., 1990, A&A, 232, 184P
Pauls, R.; Kohoutek, L.1996 ,AN ,317 ,413P
Phillips, J. P.; Riera, A.; Mampaso, A., 1990, A&A, 234, 454P
Phillips, J. P., 2002, APJS, 139, 199P
Reynolds, R. J., 1989, APJ, 339L, 29R
Rozyczka, Michal; Franco, Jose., 1996, APJ, 469L, 127R
Schwarz, H. E.; Corradi, R. L. M.; Melnick, J., 1992, A&AS, 96, 23S
Soker, Noam; Zucker, Daniel B.; Balick, Bruce., 1992, AJ, 104, 2151S
Stanghellini, Letizia; Corradi, Romano L. M.; Schwarz, Hugo E., 1993, A&A, 279, 521S
Tweedy, R. W.; Martos, M. A.; Noriega-Crespo, A., 1995, APJ , 447, 257T
Tweedy, Richard W.; Kwitter, Karen B., 1996, APJS, 107, 255T
Webster, B. L.; Payne, P. W.; Storey, J. W. V.; Dopita, M. A., 1988, MNRAS, 235, 533W
Xilouris, K. M.; Papamastorakis, J.; Paleologou, E.; Terzian, Y., 1996, A&A, 310, 603X
Zucker, Daniel B.; Soker, Noam., 1993, APJ, 408, 579Z