ON NONLINEAR RADIAL OSCILLATIONS IN CONVECTIVE RR LYRAE STARS .3. A FULL-AMPLITUDE INVESTIGATION OF THE RED EDGE

被引：18

作者：

GEHMEYR, M ^{[1
]}

机构：

[1] UNIV ILLINOIS,DEPT ASTRON,URBANA,IL 61801

来源：

ASTROPHYSICAL JOURNAL | 1993年 / 412卷 / 01期

关键词：

D O I：

10.1086/172924

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

An adaptive-grid algorithm is employed to construct a sequence of convective RR Lyrae envelopes with varying effective temperatures. For the first time, the theoretical red edge is derived and analyzed from full-amplitude models. ''Convective quenching'' is confirmed as the mechanism that stalls the pulsational driving when the red edge is approached from within the instability strip. It is demonstrated that the theoretical properties of this approach are qualitatively consistent with the empirical properties. A quantitative comparison, however, depends strongly on details of the convection model.

引用

收藏

页码：341 / 350

页数：10

相关论文

共 23 条

[1] PULSATIONS OF MODEL RR LYRAE STARS [J].

BAKER, NH ;

GOUGH, DO .

ASTROPHYSICAL JOURNAL, 1979, 234 (01) :232-244

[2]

BUCHLER JR, 1990, NATO ASI SER C, V302

[3] DOUBLE-MODE RR LYRAE STARS IN THE GLOBULAR-CLUSTER IC 4499 [J].

CLEMENT, CM ;

NEMEC, JM ;

ROBERT, N ;

WELLS, T ;

DICKENS, RJ ;

BINGHAM, EA .

ASTRONOMICAL JOURNAL, 1986, 92 (04) :825-843

[4] THEORETICAL RED EDGE OF RR LYRAE GAP .2. DEPENDENCE OF RED EDGE ON LUMINOSITY AND COMPOSITION, AND OBSERVATIONAL CONSEQUENCES [J].

DEUPREE, RG .

ASTROPHYSICAL JOURNAL, 1977, 214 (02) :502-509

[5] THEORETICAL RED EDGE OF RR LYRAE GAP .1. DEPENDENCE OF CONVECTION ON PULSATION PHASE [J].

DEUPREE, RG .

ASTROPHYSICAL JOURNAL, 1977, 211 (02) :509-526

[6] CONVECTION, THE BLUE EDGE OF THE RR LYRAE GAP, AND A COMPARISON OF ONE-DIMENSIONAL AND TWO-DIMENSIONAL HYDRODYNAMIC SIMULATIONS [J].

DEUPREE, RG .

ASTROPHYSICAL JOURNAL, 1985, 296 (01) :160-164

[7]

DICKENS RJ, 1982, PULSATIONS CLASSICAL, P182

[8] ON NONLINEAR RADIAL OSCILLATIONS IN CONVECTIVE RR LYRAE STARS .2. COMPARISON OF A RADIATIVE AND A CONVECTIVE MODEL [J].

GEHMEYR, M .

ASTROPHYSICAL JOURNAL, 1992, 399 (01) :272-283

[9] ON NONLINEAR RADIAL OSCILLATIONS IN CONVECTIVE RR LYRAE STARS .1. THE MATHEMATICAL-DESCRIPTION [J].

GEHMEYR, M .

ASTROPHYSICAL JOURNAL, 1992, 399 (01) :265-271

[10]

GLASNER SA, 1990, NATO ADV SCI I C-MAT, V302, P109