Common continuum polarization properties: a possible link between proto-planetary nebulae and Type Ia Supernova progenitors

被引：26

作者：

Cikota, Aleksandar ^{[1
]}

Patat, Ferdinando ^{[1
]}

Cikota, Stefan ^{[2
,3
]}

Spyromilio, Jason ^{[1
]}

Rau, Gioia ^{[4
]}

机构：

[1] European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany

[2] Univ Zagreb, Dept Appl Phys, Fac Elect Engn & Comp, Unska 3, Zagreb 10000, Croatia

[3] Rudjer Boskovic Inst, Bijenicka Cesta 54, Zagreb 10000, Croatia

[4] Univ Vienna, Dept Astrophys, Turkenschanzstr 17, A-1180 Vienna, Austria

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2017年 / 471卷 / 02期

关键词：

polarization; stars: AGB and post-AGB; supernovae: general; ISM: general; ASYMPTOTIC GIANT BRANCH; INTERSTELLAR POLARIZATION; CIRCUMSTELLAR MATERIAL; WAVELENGTH DEPENDENCE; SODIUM-ABSORPTION; LIGHT ECHOES; RED GIANT; EVOLUTION; DUST; AGB;

D O I：

10.1093/mnras/stx1734

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The lines of sight to highly reddened SNe Ia show peculiar continuum polarization curves, growing towards blue wavelengths and peaking lambda(max) less than or similar to 0.4 mu m, like no other sightline to any normal Galactic star. We examined continuum polarization measurements of a sample of asymptotic giant branch (AGB) and post-AGB stars from the literature, finding that some proto-planetary nebulae (PPNe) have polarization curves similar to those observed along SN Ia sightlines. These polarization curves are produced by scattering on circumstellar dust. We discuss the similarity and the possibility that at least some SNe Ia might explode during the post-AGB phase of their binary companion. Furthermore, we speculate that the peculiar SN Ia polarization curves might provide observational support to the core-degenerate progenitor model.

引用

页码：2111 / 2116

页数：6