Blue edge of the ZZ Ceti instability strip versus mass

被引：0

作者：

Giovannini, O ^{[1
]}

Kepler, SO ^{[1
]}

Kanaan, A ^{[1
]}

Wood, MA ^{[1
]}

Claver, CF ^{[1
]}

Koester, D ^{[1
]}

机构：

[1] Univ Fed Rio Grande Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil

来源：

BALTIC ASTRONOMY, VOL 7, NOS 1 AND 2 | 1998年

关键词：

stars; white dwarfs; fundamental parameters; variables;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this work we test the theoretical results derived from pulsation models in which the blue edge temperature of the ZZ Ceti instability strip depends on the stellar mass. By using the fundamental parameters (T-eff and M) and the results of the time series photometry of a sample of DA stars, we found all the ZZ Ceti stars in our sample but one (G 226-29) fall inside the instability strip if the theoretical blue edge is shifted by 300 K to higher temperature. Our biggest sources of uncertainty are in the T-eff and M determinations, but by assuming that the relative ordering in the temperature among the ZZ Ceti stars is reliable, we conclude that the instability strip boundaries depend on stellar mass.

引用

页码：131 / 140

页数：10

共 50 条

[31] On the purity of the ZZ Ceti instability strip:: Discovery of more pulsating DA white dwarfs on the basis of optical spectroscopy
Bergeron, P
Fontaine, G
Billères, M
Boudreault, S
Green, EM
ASTROPHYSICAL JOURNAL, 2004, 600 (01): : 404 - 408
[32] SPECIFICATION OF BLUE EDGE OF RR LYRAE INSTABILITY STRIP
IBEN, I
ASTROPHYSICAL JOURNAL, 1971, 166 (01): : 131 - &
[33] Wandering near the red edge: photometric observations of three cool ZZ Ceti stars
Bognar, Zs.
Paparo, M.
Sodor, A.
Jenei, D. I.
Kalup, Cs.
Bertone, E.
Chavez-Dagostino, M.
Montgomery, M. H.
Gyorffy, A.
Molnar, L.
Olle, H.
Papics, P. I.
Plachy, E.
Verebelyi, E.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2019, 482 (03) : 4018 - 4031
[34] Pulsations of the Low-Mass ZZ Ceti Star HS 1824+6000
Steinfadt, Justin D. R.
Bildsten, Lars
Ofek, Eran O.
Kulkarni, Shri R.
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 2008, 120 (872) : 1103 - 1111
[35] Gravity modes in ZZ Ceti stars. IV. Amplitude saturation by parametric instability
Wu, YQ
Goldreich, P
ASTROPHYSICAL JOURNAL, 2001, 546 (01): : 469 - 483
[36] On the Red Edge of the δ Scuti Instability Strip
Yan Xu
ChineseJournalofAstronomyandAstrophysics, 2002, (05) : 441 - 448
[37] On the red edge of the δ Scuti instability strip
Xu, Y
Li, ZP
Deng, LC
Xiong, DR
CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS, 2002, 2 (05): : 441 - 448
[38] MASS-DISTRIBUTION OF DA WHITE-DWARFS AND ATMOSPHERIC PARAMETERS OF ZZ CETI STARS
WEIDEMANN, V
KOESTER, D
ASTRONOMY & ASTROPHYSICS, 1984, 132 (01): : 195 - 202
[39] On the red edge of the GW Vir instability strip
Werner, K
Dreizler, S
Heber, U
Rauch, T
HALF CENTURY OF STELLAR PULSATION INTERPRETATIONS: A TRIBUTE TO ARTHUR N. COX, 1998, 135 : 130 - 134
[40] Constraining the Axion Mass through the Asteroseismology of the ZZ Ceti Star G117-B15A
Corsico, A. H.
Althaus, L. G.
Romero, A. D.
Miller Bertolami, M. M.
Garcia-Berro, E.
Isern, J.
PROGRESS IN SOLAR/STELLAR PHYSICS WITH HELIO- AND ASTEROSEISMOLOGY, 2012, 462 : 533 - +

← 1 2 3 4 5 →